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externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/.gitattributes

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+* text=auto !eol svneol=native#text/plain
+*.gitattributes text svneol=native#text/plain
+
+# Scriptish formats
+*.bat        text svneol=native#text/plain
+*.bsh        text svneol=native#text/x-beanshell
+*.cgi        text svneol=native#text/plain
+*.cmd        text svneol=native#text/plain
+*.js         text svneol=native#text/javascript
+*.php        text svneol=native#text/x-php
+*.pl         text svneol=native#text/x-perl
+*.pm         text svneol=native#text/x-perl
+*.py         text svneol=native#text/x-python
+*.sh         eol=lf svneol=LF#text/x-sh
+configure    eol=lf svneol=LF#text/x-sh
+
+# Image formats
+*.bmp        binary svneol=unset#image/bmp
+*.gif        binary svneol=unset#image/gif
+*.ico        binary svneol=unset#image/ico
+*.jpeg       binary svneol=unset#image/jpeg
+*.jpg        binary svneol=unset#image/jpeg
+*.png        binary svneol=unset#image/png
+*.tif        binary svneol=unset#image/tiff
+*.tiff       binary svneol=unset#image/tiff
+*.svg        text svneol=native#image/svg%2Bxml
+
+# Data formats
+*.pdf        binary svneol=unset#application/pdf
+*.avi        binary svneol=unset#video/avi
+*.doc        binary svneol=unset#application/msword
+*.dsp        text svneol=crlf#text/plain
+*.dsw        text svneol=crlf#text/plain
+*.eps        binary svneol=unset#application/postscript
+*.gz         binary svneol=unset#application/gzip
+*.mov        binary svneol=unset#video/quicktime
+*.mp3        binary svneol=unset#audio/mpeg
+*.ppt        binary svneol=unset#application/vnd.ms-powerpoint
+*.ps         binary svneol=unset#application/postscript
+*.psd        binary svneol=unset#application/photoshop
+*.rdf        binary svneol=unset#text/rdf
+*.rss        text svneol=unset#text/xml
+*.rtf        binary svneol=unset#text/rtf
+*.sln        text svneol=native#text/plain
+*.swf        binary svneol=unset#application/x-shockwave-flash
+*.tgz        binary svneol=unset#application/gzip
+*.vcproj     text svneol=native#text/xml
+*.vcxproj    text svneol=native#text/xml
+*.vsprops    text svneol=native#text/xml
+*.wav        binary svneol=unset#audio/wav
+*.xls        binary svneol=unset#application/vnd.ms-excel
+*.zip        binary svneol=unset#application/zip
+
+# Text formats
+.htaccess    text svneol=native#text/plain
+*.bbk        text svneol=native#text/xml
+*.cmake      text svneol=native#text/plain
+*.css        text svneol=native#text/css
+*.dtd        text svneol=native#text/xml
+*.htm        text svneol=native#text/html
+*.html       text svneol=native#text/html
+*.ini        text svneol=native#text/plain
+*.log        text svneol=native#text/plain
+*.mak        text svneol=native#text/plain
+*.qbk        text svneol=native#text/plain
+*.rst        text svneol=native#text/plain
+*.sql        text svneol=native#text/x-sql
+*.txt        text svneol=native#text/plain
+*.xhtml      text svneol=native#text/xhtml%2Bxml
+*.xml        text svneol=native#text/xml
+*.xsd        text svneol=native#text/xml
+*.xsl        text svneol=native#text/xml
+*.xslt       text svneol=native#text/xml
+*.xul        text svneol=native#text/xul
+*.yml        text svneol=native#text/plain
+boost-no-inspect text svneol=native#text/plain
+CHANGES      text svneol=native#text/plain
+COPYING      text svneol=native#text/plain
+INSTALL      text svneol=native#text/plain
+Jamfile      text svneol=native#text/plain
+Jamroot      text svneol=native#text/plain
+Jamfile.v2   text svneol=native#text/plain
+Jamrules     text svneol=native#text/plain
+Makefile*    text svneol=native#text/plain
+README       text svneol=native#text/plain
+TODO         text svneol=native#text/plain
+
+# Code formats
+*.c          text svneol=native#text/plain
+*.cpp        text svneol=native#text/plain
+*.h          text svneol=native#text/plain
+*.hpp        text svneol=native#text/plain
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+*.java       text svneol=native#text/plain

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/CMakeLists.txt

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+# Generated by `boostdep --cmake numeric~conversion`
+# Copyright 2020 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# https://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(boost_numeric_conversion VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+
+add_library(boost_numeric_conversion INTERFACE)
+add_library(Boost::numeric_conversion ALIAS boost_numeric_conversion)
+
+target_include_directories(boost_numeric_conversion INTERFACE include)
+
+target_link_libraries(boost_numeric_conversion
+  INTERFACE
+    Boost::config
+    Boost::conversion
+    Boost::core
+    Boost::mpl
+    Boost::preprocessor
+    Boost::throw_exception
+    Boost::type_traits
+)
+
+if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
+
+  add_subdirectory(test)
+
+endif()
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/README.md

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+# Boost.NumericConversion
+
+The Boost Numeric Conversion library is a collection of tools to describe and perform conversions between values of different [numeric types][1].
+
+The documentation for the library can be found [here][2]
+
+[1]: http://www.boost.org/doc/libs/release/libs/numeric/conversion/doc/html/boost_numericconversion/definitions.html#boost_numericconversion.definitions.numeric_types
+[2]: http://www.boost.org/doc/libs/release/libs/numeric/conversion/doc/html/index.html#numeric_conversion.overview

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/Jamfile.v2

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+# Boost.Numeric/Conversion
+#
+# Copyright (c) 2004-2007 Fernando Luis Cacciola Carballal
+#
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+
+# Quickbook
+# -----------------------------------------------------------------------------
+
+import quickbook ;
+
+path-constant images : html ;
+
+
+xml conversion
+    :
+        conversion.qbk
+    ;
+
+boostbook standalone
+    :
+        conversion
+    :
+        <xsl:param>boost.root=../../../../..
+        <xsl:param>html.stylesheet=boostbook.css
+        <xsl:param>toc.max.depth=2
+        <xsl:param>toc.section.depth=2
+        <xsl:param>chunk.section.depth=1
+        <format>pdf:<xsl:param>img.src.path=$(images)/
+        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/numeric/conversion/doc/html
+    ;
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/bounds.qbk

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+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+[section bounds<> traits class]
+
+[section Introduction]
+
+To determine the ranges of numeric types with `std::numeric_limits` \[18.2.1\],
+different syntax have to be used depending on numeric type. Specifically,
+`numeric_limits<T>::min()` for integral types returns the minimum finite value,
+whereas for floating point types it returns the minimum positive normalized
+value. The difference in semantics makes client code unnecessarily complex
+and error prone.
+
+`boost::numeric::bounds<>` provides a consistent interface for retrieving the
+maximum finite value, the minimum finite value and the minimum positive normalized
+value (0 for integral types) for numeric types. The selection of implementation
+is performed at compile time, so there is no runtime overhead.
+
+[endsect]
+
+[section traits class bounds<N>]
+
+    template<class N>
+    struct bounds
+    {
+        static N lowest  () { return implementation_defined; }
+        static N highest () { return implementation_defined; }
+        static N smallest() { return implementation_defined; }
+    };
+
+[heading Members]
+
+
+[: `lowest()` ]
+
+Returns the minimum finite value, equivalent to `numeric_limits<T>::min()` when `T`
+is an integral type, and to `-numeric_limits<T>::max()` when `T` is a floating point type.
+
+[: `highest()` ]
+
+Returns the maximum finite value, equivalent to `numeric_limits<T>::max()`.
+
+[: `smallest()` ]
+
+Returns the smallest positive normalized value for floating point types with
+denormalization, or returns 0 for integral types.
+
+[endsect]
+
+[section Examples]
+
+The following example demonstrates the use of `numeric::bounds<>` and the
+equivalent code using `numeric_limits`:
+
+    #include <iostream>
+
+    #include <boost/numeric/conversion/bounds.hpp>
+    #include <boost/limits.hpp>
+
+    int main() {
+
+        std::cout << "numeric::bounds versus numeric_limits example.\n";
+
+        std::cout << "The maximum value for float:\n";
+        std::cout << boost::numeric::bounds<float>::highest() << "\n";
+        std::cout << std::numeric_limits<float>::max() << "\n";
+
+        std::cout << "The minimum value for float:\n";
+        std::cout << boost::numeric::bounds<float>::lowest() << "\n";
+        std::cout << -std::numeric_limits<float>::max() << "\n";
+
+        std::cout << "The smallest positive value for float:\n";
+        std::cout << boost::numeric::bounds<float>::smallest() << "\n";
+        std::cout << std::numeric_limits<float>::min() << "\n";
+
+        return 0;
+    }
+
+
+[endsect]
+
+[endsect]
+
+
+
+
+
+
+
+
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/conversion.qbk

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+[library Boost.NumericConversion
+    [quickbook 1.4]
+    [authors [Cacciola Carballal, Fernando Luis]]
+    [copyright 2004-2007 Fernando Luis Cacciola Carballal]
+    [category numerics]
+    [id numeric_conversion]
+    [dirname numeric_conversion]
+    [purpose
+        Optimized Policy-based Numeric Conversions
+    ]
+    [source-mode c++]
+    [license
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+[@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[/ Macros will be used for links so we have a central place to change them ]
+
+
+[/ Cited Boost resources ]
+
+[def __MPL_INTEGRAL_CONSTANT__ [@../../../../mpl/doc/refmanual/integral-constant.html MPL's Integral Constant] ]
+
+
+
+[/ Other web resources ]
+
+[def __SGI_UNARY_FUNCTION__ [@http://www.sgi.com/tech/stl/UnaryFunction.html Unary Function Object]]
+
+[/ Icons ]
+
+[def __NOTE__ [$images/note.png]]
+[def __ALERT__ [$images/caution.png]]
+[def __DETAIL__ [$images/note.png]]
+[def __TIP__ [$images/tip.png]]
+[def __QUESTION_MARK__ [$images/question.png]]
+[def __SPACE__ [$images/space.png]]
+[def __GO_TO__ [$images/callouts/R.png]]
+
+
+
+
+[section Overview]
+
+The Boost Numeric Conversion library is a collection of tools to describe and
+perform conversions between values of different 
+[link boost_numericconversion.definitions.numeric_types numeric types].
+
+The library includes a special alternative for a subset of `std::numeric_limits<>`,
+the [link boost_numericconversion.bounds___traits_class bounds<>] traits class, which provides 
+a consistent way to obtain the [link boost_numericconversion.definitions.range_and_precision boundary] 
+values for the [link boost_numericconversion.definitions.range_and_precision range] of a numeric type.
+
+It also includes a set of [link boost_numericconversion.conversion_traits___traits_class trait classes] 
+which describes the compile-time
+properties of a conversion from a source to a target numeric type.
+Both [link boost_numericconversion.definitions.c___arithmetic_types arithmetic] and 
+[link boost_numericconversion.definitions.numeric_types user-defined numeric types] can be used.
+
+A policy-based [link boost_numericconversion.converter___function_object converter] object which 
+uses `conversion_traits` to select
+an optimized implementation is supplied. Such implementation uses an optimal
+range checking code suitable for the source/target combination.
+
+* The converter's out-of-range behavior can be customized via an
+[link boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler OverflowHandler] policy.
+* For floating-point to integral conversions, the rounding mode can be selected via the
+[link boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder Float2IntRounder] policy.
+* A custom low-level conversion routine (for UDTs for instance) can be passed via a
+[link boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter RawConverter] policy.
+* The optimized automatic range-checking logic can be overridden via a
+[link boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker UserRangeChecker] policy.
+
+[endsect]
+
+
+
+[include definitions.qbk]
+[include converter.qbk]
+[include requirements.qbk]
+[include bounds.qbk]
+[include conversion_traits.qbk]
+[include converter_policies.qbk]
+[include numeric_cast.qbk]
+
+
+
+[section History and Acknowledgments]
+
+
+[heading Pre-formal review]
+
+* Kevlin Henney, with help from David Abrahams and Beman Dawes, originally contributed
+the previous version of `numeric_cast<>` which already presented the idea of a runtime
+range check.
+
+* Later, Eric Ford, Kevin Lynch and the author spotted some genericity problems with
+that `numeric_cast<>` which prevented it from being used in a generic layer of math
+functions.
+
+* An improved `numeric_cast<>` which properly handled all combinations of arithmetic
+types was presented.
+
+* David Abrahams and Beman Dawes acknowledged the need of an improved version of
+`numeric_cast<>` and supported the submission as originally laid out. Daryl Walker and
+Darin Adler made some important comments and proposed fixes to the original submission.
+
+* Special thanks go to Björn Karlsoon who helped the author considerably. Having found the
+problems with `numeric_cast<>` himself, he revised very carefully the original submission
+and spot a subtle bug in the range checking implementation. He also wrote part of
+this documentation and proof-read and corrected other parts. And most importantly:
+the features now presented here in this library evolved from the original submission as
+a result of the useful private communications between Björn and the author.
+
+[heading Post-formal review]
+
+* Guillaume Melquiond spoted some documentation and code issues, particularly about
+rounding conversions.
+
+* The following people contributed an important review of the design, documentation and c
+ode: Kevin Lynch, Thorsten Ottosen, Paul Bristow, Daryle Walker, Jhon Torjo, Eric Ford,
+Gennadiy Rozental.
+
+
+[endsect]
+
+[section Bibliography]
+
+* Standard Documents: 
+    # ISO/IEC 14882:98 (C++98 Standard)
+    # ISO/IEC 9899:1999 (C99 Standard)
+    # ISO/IEC 10967-1 (Language Independent Arithmetic (LIA), Part I, 1994)
+    # ISO/IEC 2382-1:1993 (Information Technology - Vocabulary - Part I: Fundamental Terms)
+    # ANSI/IEEE 754-1985 [and IEC 60559:1989] (Binary floating-point)
+    # ANSI/IEEE 854-1988 (Radix Independent floating-point)
+    # ANSI X3/TR-1-82 (Dictionary for Information Processing Systems)
+    # ISO/IEC JTC1/SC22/WG14/N753 C9X Revision Proposal: LIA-1 Binding: Rationale
+* Papers:
+    # David Goldberg  What Every Computer Scientist Should Know About Floating-Point Arithmetic
+    # Prof. William Kahan papers on floating-point.
+
+[endsect]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/conversion_traits.qbk

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+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+[section conversion_traits<> traits class]
+
+[section Types]
+
+[section enumeration int_float_mixture_enum]
+
+    namespace boost { namespace numeric {
+
+        enum int_float_mixture_enum
+        {
+           integral_to_integral
+          ,integral_to_float
+          ,float_to_integral
+          ,float_to_float
+        } ;
+
+    } } // namespace boost::numeric
+
+[endsect]
+
+[section enumeration sign_mixture_enum]
+
+    namespace boost { namespace numeric {
+
+    enum sign_mixture_enum
+    {
+       unsigned_to_unsigned
+      ,signed_to_signed
+      ,signed_to_unsigned
+      ,unsigned_to_signed
+    } ;
+
+    } } // namespace boost::numeric
+
+[endsect]
+
+[section enumeration udt_builtin_mixture_enum]
+
+    namespace boost { namespace numeric {
+
+        enum udt_builtin_mixture_enum
+        {
+           builtin_to_builtin
+          ,builtin_to_udt
+          ,udt_to_builtin
+          ,udt_to_udt
+        } ;
+
+    } } // namespace boost::numeric
+
+[endsect]
+
+[section template class int_float_mixture<>]
+
+    namespace boost { namespace numeric {
+
+        template <class T, class S>
+        struct int_float_mixture : mpl::integral_c<int_float_mixture_enum, impl-def-value> {} ;
+
+    } } // namespace boost::numeric
+
+Classifying `S` and `T` as either integral or float, this __MPL_INTEGRAL_CONSTANT__
+indicates the combination of these attributes.
+
+Its `::value` is of enumeration type
+[link boost_numericconversion.conversion_traits___traits_class.types.enumeration_int_float_mixture_enum `boost::numeric::int_float_mixture_enum`]
+
+[endsect]
+
+[section template class sign_mixture<>]
+
+    namespace boost { namespace numeric {
+
+        template <class T, class S>
+        struct sign_mixture : mpl::integral_c<sign_mixture_enum, impl-def-value> {} ;
+
+    } } // namespace boost::numeric
+
+Classifying `S` and `T` as either signed or unsigned, this __MPL_INTEGRAL_CONSTANT__
+indicates the combination of these attributes.
+
+Its `::value` is of enumeration type
+[link boost_numericconversion.conversion_traits___traits_class.types.enumeration_sign_mixture_enum `boost::numeric::sign_mixture_enum`]
+
+[endsect]
+
+[section template class udt_builtin_mixture<>]
+
+    namespace boost { namespace numeric {
+
+        template <class T, class S>
+        struct udt_builtin_mixture : mpl::integral_c<udt_builtin__mixture_enum, impl-def-value> {} ;
+
+    } } // namespace boost::numeric
+
+Classifying `S` and `T` as either user-defined or builtin, this __MPL_INTEGRAL_CONSTANT__
+indicates the combination of these attributes.
+
+Its `::value` is of enumeration type
+[link boost_numericconversion.conversion_traits___traits_class.types.enumeration_udt_builtin_mixture_enum `boost::numeric::udt_builtin_mixture_enum`]
+
+[endsect]
+
+[section template class is_subranged<>]
+
+    namespace boost { namespace numeric {
+
+        template <class T, class S>
+        struct is_subranged : mpl::bool_<impl-def-value> {} ;
+
+    } } // namespace boost::numeric
+
+Indicates if the range of the target type `T` is a subset of the range of the source
+type `S`. That is: if there are some source values which fall out of the
+Target type's range.
+
+It is a boolean __MPL_INTEGRAL_CONSTANT__.
+
+It does not indicate if a particular conversion is effectively out of range;
+it indicates that some conversion might be out of range because not all the
+source values are representable as Target type.
+
+[endsect]
+
+[section template class conversion_traits<>]
+
+    namespace boost { namespace numeric {
+
+        template <class T, class S>
+        struct conversion_traits
+        {
+            mpl::integral_c<int_float_mixture_enum  , ...> int_float_mixture ;
+            mpl::integral_c<sign_mixture_enum       , ...> sign_mixture;
+            mpl::integral_c<udt_builtin_mixture_enum, ...> udt_builtin_mixture ;
+
+            mpl::bool_<...> subranged ;
+            mpl::bool_<...> trivial ;
+
+            typedef T target_type   ;
+            typedef S source_type   ;
+            typedef ... argument_type ;
+            typedef ... result_type   ;
+            typedef ... supertype     ;
+            typedef ... subtype       ;
+        } ;
+
+    } } // namespace numeric, namespace boost
+
+
+This traits class indicates some properties of a ['numeric conversion] direction:
+from a source type `S` to a target type `T`. It does not indicate the properties
+of a ['specific] conversion, but of the conversion direction. See
+[link boost_numericconversion.definitions.subranged_conversion_direction__subtype_and_supertype Definitions] for details.
+
+The traits class provides the following __MPL_INTEGRAL_CONSTANT__\s of enumeration
+type. They express the combination of certain attributes of the Source and
+Target types (thus they are call mixture):
+
+[table
+[[       ][        ]]
+[[[*int_float_mixture   ]][
+Same as given by the traits class
+[link boost_numericconversion.conversion_traits___traits_class.types.template_class_int_float_mixture__ int_float_mixture]
+]]
+[[[*sign_mixture        ]][
+Same as given by the traits class
+[link boost_numericconversion.conversion_traits___traits_class.types.template_class_sign_mixture__ sign_mixture]
+]]
+[[[*udt_builtin_mixture ]]
+[Same as given by the traits class
+[link boost_numericconversion.conversion_traits___traits_class.types.template_class_udt_builtin_mixture__ udt_builtin_mixture]
+]]
+]
+
+The traits class provides the following __MPL_INTEGRAL_CONSTANT__\s of boolean type
+which indicates indirectly the relation between the Source and Target ranges
+(see [link boost_numericconversion.definitions.range_and_precision Definitions] for details).
+
+[table
+[[       ][        ]]
+[[subranged ][
+Same as given by [link boost_numericconversion.conversion_traits___traits_class.types.template_class_is_subranged__ is_subranged]
+]]
+[[trivial][
+Indicates if both Source and Target, [_without cv-qualifications], are the same type.
+
+Its `::value` is of boolean type.
+]]
+]
+
+The traits class provides the following types. They are the Source and Target types classified
+and qualified for different purposes.
+
+
+[table
+[[            ][         ]]
+[[[*target_type]][
+The template parameter `T` without cv-qualifications
+]]
+[[[*source_type]][
+The template parameter `S` without cv-qualifications
+]]
+[[[*argument_type]][
+This type is either source_type or `source_type const&`.
+
+It represents the optimal argument type for the
+[link boost_numericconversion.converter___function_object converter] member functions.
+
+If S is a built-in type, this is `source_type`, otherwise, this is `source_type const&`.
+]]
+[[[*result_type]][
+This type is either target_type or target_type const&
+
+It represents the return type of the 
+[link boost_numericconversion.converter___function_object converter] member functions.
+
+If `T==S`, it is `target_type const&`, otherwise, it is `target_type`.
+]]
+[[[*supertype]][
+If the conversion is subranged, it is `source_type`, otherwise, it is `target_type`
+]]
+[[[*subtype]][
+If the conversion is subranged, it is `target_type`, otherwise, it is `source_type`
+]]
+]
+
+[endsect]
+
+[endsect]
+
+[section Examples]
+
+    #include <cassert>
+    #include <typeinfo>
+    #include <boost/numeric/conversion/conversion_traits.hpp>
+
+    int main()
+    {
+
+        // A trivial conversion.
+        typedef boost::numeric::conversion_traits<short,short> Short2Short_Traits ;
+        assert ( Short2Short_Traits::trivial::value ) ;
+
+        // A subranged conversion.
+        typedef boost::numeric::conversion_traits<double,unsigned int> UInt2Double_Traits ;
+        assert (  UInt2Double_Traits::int_float_mixture::value == boost::numeric::integral_to_float ) ;
+        assert (  UInt2Double_Traits::sign_mixture::value == boost::numeric::unsigned_to_signed ) ;
+        assert ( !UInt2Double_Traits::subranged::value ) ;
+        assert ( typeid(UInt2Double_Traits::supertype) == typeid(double) ) ;
+        assert ( typeid(UInt2Double_Traits::subtype) == typeid(unsigned int) ) ;
+
+        // A doubly subranged conversion.
+        assert ( (boost::numeric::conversion_traits<short, unsigned short>::subranged::value) );
+        assert ( (boost::numeric::conversion_traits<unsigned short, short>::subranged::value) );
+
+        return 0;
+    }
+
+[endsect]
+
+[endsect]
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/converter.qbk

@@ -0,0 +1,293 @@
+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+[section converter<> function object]
+
+[section Synopsis]
+
+    namespace boost { namespace numeric {
+
+
+        template<class T,
+                 class S,
+                 class Traits,          = conversion_traits<T,S>
+                 class OverflowHandler  = def_overflow_handler,
+                 class Float2IntRounder = Trunc< typename Traits::source_type >,
+                 class RawConverter     = raw_converter<Traits>,
+                 class UserRangeChecker = UseInternalRangeChecker
+                >
+        struct converter
+        {
+            typedef Traits traits ;
+
+            typedef typename Traits::source_type   source_type   ;
+            typedef typename Traits::argument_type argument_type ;
+            typedef typename Traits::result_type   result_type   ;
+
+            static result_type convert ( argument_type s ) ;
+
+            result_type operator() ( argument_type s ) const ;
+
+            // Internal member functions:
+
+            static range_check_result out_of_range      ( argument_type s ) ;
+            static void               validate_range    ( argument_type s ) ;
+            static result_type        low_level_convert ( argument_type s ) ;
+            static source_type        nearbyint         ( argument_type s ) ;
+
+        } ;
+
+    } } // namespace numeric, boost
+
+
+`boost::numeric::converter<>` is a __SGI_UNARY_FUNCTION__ encapsulating
+the code to perform a numeric conversion with the direction and
+properties specified by the Traits template parameter. It can optionally
+take some [link boost_numericconversion.numeric_converter_policy_classes policies] which can be used to customize its behavior. The
+`Traits` parameter is not a policy but the parameter that defines
+the conversion.
+
+[endsect]
+
+[section Template parameters]
+
+[table
+[[            ][           ]]
+[[`T`][
+The [link boost_numericconversion.definitions.numeric_types Numeric Type] 
+which is the ['Target] of the conversion.
+]]
+[[`S`][
+The [link boost_numericconversion.definitions.numeric_types Numeric Type] 
+which is the ['Source] of the conversion.
+]]
+[[`Traits`][
+This must be a conversion traits class with the interface of
+[link boost_numericconversion.conversion_traits___traits_class `boost::numeric::conversion_traits`]
+]]
+[[`OverflowHandler`][
+[*Stateless Policy] called to administrate the result of the range checking.
+
+It is a [*Function Object] which receives the result of `out_of_range()`
+and is called inside the `validate_range()` static member function exposed
+by the converter.
+]]
+[[`Float2IntRounder`][
+[*Stateless Policy] which specifies the rounding mode used for float to
+integral conversions.
+
+It supplies the `nearbyint()` static member function exposed by the converter.
+]]
+[[`RawConverter`][
+[*Stateless Policy] which is used to perform the actual conversion.
+
+It supplies the `low_level_convert()` static member function exposed
+by the converter.
+]]
+[[`UserRangeChecker`][
+['Special and Optional] [*Stateless Policy] which can be used to override
+the internal range checking logic.
+
+If given, supplies alternative code for the `out_of_range()` and
+`validate_range()` static member functions exposed by the converter.
+]]
+]
+
+[endsect]
+
+[section Member functions]
+
+[: `static result_type converter<>::convert ( argument_type s ) ; // throw
+`]
+
+This static member function converts an rvalue of type `source_type` to
+an rvalue of type `target_type`.
+
+If the conversion requires it, it performs a range checking before the conversion
+and passes the result of the check to the overflow handler policy (the default
+policy throws an exception if out-of-range is detected)
+
+The implementation of this function is actually built from the policies and is
+basically as follows:
+
+    result_type converter<>::convert ( argument_type s )
+    {
+        validate_range(s); // Implemented by the internal range checking logic
+                           // (which also calls the OverflowHandler policy)
+                           // or externally supplied by the UserRangeChecker policy.
+
+        s = nearbyint(s); // Externally supplied by the Float2IntRounder policy.
+                          // NOTE: This is actually called only for float to int conversions.
+
+        return low_level_convert(s); // Externally supplied by the RawConverter policy.
+    }
+
+`converter<>::operator() const` just calls `convert()`
+
+__SPACE__
+
+[: `static range_check_result numeric_converter<>::out_of_range ( argument_type s ) ;`]
+
+This [link numeric_conversion_converter_internal internal] static member function 
+determines if the value `s` can be
+represented by the target type without overflow.
+
+It does not determine if the conversion is ['exact]; that is, it does not detect
+['inexact] conversions, only ['out-of-range] conversions (see the
+[link boost_numericconversion.definitions.exact__correctly_rounded_and_out_of_range_representations Definitions] for further details).
+
+The return value is of enum type 
+[link boost_numericconversion.numeric_converter_policy_classes.enum_range_check_result `boost::numeric::range_check_result`]
+
+The actual code for the range checking logic is optimized for the combined
+properties of the source and target types. For example, a non-subranged
+conversion (i.e: `int`->`float`), requires no range checking, so `out_of_range()`
+returns `cInRange` directly. See the following 
+[link boost_numericconversion.converter___function_object.range_checking_logic table] for more details.
+
+If the user supplied a
+[link boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker UserRangeChecker] policy, 
+is this policy which implements this function, so the implementation is user 
+defined, although it is expected to perform the same conceptual check and 
+return the appropriate result.
+
+__SPACE__
+
+[: `static void numeric_converter<>::validate_range ( argument_type s ) ; // no throw
+`]
+
+This [link numeric_conversion_converter_internal internal] static member function 
+calls out_of_range(s), and passes the
+result to the [link boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler OverflowHandler] 
+policy class.
+
+For those Target/Source combinations which don't require range checking, this
+is an empty inline function.
+
+If the user supplied a 
+[link boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker UserRangeChecker] policy, 
+is this policy which implements this function, so the implementation is user 
+defined, although it is expected to perform the same action as the default. 
+In particular, it is expected to pass the result of the check to the overflow handler.
+
+__SPACE__
+
+[: `static result_type numeric_converter<>::low_level_convert ( argument_type s ) ;` ]
+
+This [link numeric_conversion_converter_internal internal] static member function 
+performs the actual conversion.
+
+This function is externally supplied by the 
+[link boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter RawConverter] policy class.
+
+__SPACE__
+
+[: `static source_type converter<>::nearbyint ( argument_type s ) ;`]
+
+This [link numeric_conversion_converter_internal internal] static member function, 
+which is [_only used] for
+`float` to `int` conversions, returns an ['integer] value of ['[_floating-point
+type]] according to some rounding direction.
+
+This function is externally supplied by the 
+[link boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder Float2IntRounder] policy class
+which encapsulates the specific rounding mode.
+
+__SPACE__
+
+[#numeric_conversion_converter_internal]
+
+[heading Internal Member Functions]
+
+These static member functions build the actual conversion code used by `convert()`.
+The user does not have to call these if calling `convert()`, since `convert()` calls
+them infernally, but they can be called separately for specific needs.
+
+[endsect]
+
+[section Range Checking Logic]
+
+The following table summarizes the internal range checking logic performed for
+each combination of the properties of Source and Target.
+
+LowestT/HighestT denotes the highest and lowest values of the Target type, respectively.
+
+`S(n)` is short for `static_cast<S>(n)` (`S` denotes the Source type).
+
+`NONE` indicates that for this case there is no range checking.
+
+[pre
+[^
+int_to_int    |--> sig_to_sig     |--> subranged     |--> ( s >= S(LowestT) ) && ( s <= S(HighestT) )
+              |                   |--> not subranged |--> NONE
+              |
+              |--> unsig_to_unsig |--> subranged     |--> ( s >= S(LowestT) ) && ( s <= S(HighestT) )
+              |                   |--> not subranged |--> NONE
+              |
+              |--> sig_to_unsig   |--> pos subranged     |--> ( s >= S(0) ) && ( s <= S(HighestT) )
+              |                   |--> not pos subranged |--> ( s >= S(0) )
+              |
+              |--> unsig_to_sig   |--> subranged     |--> ( s <= S(HighestT) )
+              |                   |--> not subranged |--> NONE
+]
+[^
+int_to_float   |--> NONE
+]
+[^
+float_to_int   |--> round_to_zero         |--> ( s >  S(LowestT)-S(1)   ) && ( s <  S(HighestT)+S(1)   )
+               |--> round_to_even_nearest |--> ( s >= S(LowestT)-S(0.5) ) && ( s <  S(HighestT)+S(0.5) )
+               |--> round_to_infinity     |--> ( s >  S(LowestT)-S(1)   ) && ( s <= S(HighestT)        )
+               |--> round_to_neg_infinity |--> ( s >= S(LowestT)        ) && ( s <  S(HighestT)+S(1)   )
+]
+[^
+float_to_float |--> subranged     |--> ( s >= S(LowestT) ) && ( s <= S(HighestT) )
+               |--> not subranged |--> NONE
+]
+]
+
+
+
+[endsect]
+
+[section Examples]
+
+    #include <cassert>
+    #include <boost/numeric/conversion/converter.hpp>
+
+    int main() {
+
+        typedef boost::numeric::converter<int,double> Double2Int ;
+
+        int x = Double2Int::convert(2.0);
+        assert ( x == 2 );
+
+        int y = Double2Int()(3.14); // As a function object.
+        assert ( y == 3 ) ; // The default rounding is trunc.
+
+        try
+        {
+            double m = boost::numeric::bounds<double>::highest();
+            int z = Double2Int::convert(m); // By default throws positive_overflow()
+        }
+        catch ( boost::numeric::positive_overflow const& )
+        {
+        }
+
+        return 0;
+    }
+
+[endsect]
+
+[endsect]
+
+
+
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/converter_policies.qbk

@@ -0,0 +1,311 @@
+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+[section Numeric Converter Policy Classes]
+
+
+[section enum range_check_result]
+
+    namespace boost { namespace numeric {
+
+        enum range_check_result
+        {
+            cInRange     ,
+            cNegOverflow ,
+            cPosOverflow
+        } ;
+
+    } }
+
+Defines the values returned by `boost::numeric::converter<>::out_of_range()`
+
+[endsect]
+
+[section Policy OverflowHandler]
+
+This ['stateless] non-template policy class must be a ['function object] and is
+called to administrate the result of the range checking. It can throw an exception
+if overflow has been detected by the range checking as indicated by its argument.
+If it throws, is is recommended that it be `std::bad_cast` or derived.
+
+It must have the following interface (it does not has to be a template class):
+
+    struct YourOverflowHandlerPolicy
+    {
+        void operator() ( boost::range_check_result ) ; // throw bad_cast or derived
+    } ;
+
+It is called with the result of the converter's `out_of_range()` inside `validate_range()`.
+
+These are the two overflow handler classes provided by the library:
+
+    namespace boost { namespace numeric {
+
+        struct def_overflow_handler
+        {
+            void operator() ( range_check_result r ) // throw bad_numeric_conversion derived
+            {
+                if ( r == cNegOverflow )
+                    throw negative_overflow() ;
+                else if ( r == cPosOverflow )
+                    throw positive_overflow() ;
+            }
+        } ;
+
+        struct silent_overflow_handler
+        {
+            void operator() ( range_check_result ) // no-throw
+            {}
+        } ;
+
+    } }
+
+And these are the Exception Classes thrown by the default overflow handler
+[link numeric_conversion_policy_overflow_handler_important_note (see IMPORTANT note)]
+
+    namespace boost { namespace numeric {
+
+        ``[#numeric_conversion_bad_numeric_cast]``
+        class bad_numeric_cast : public std::bad_cast
+        {
+            public:
+            virtual const char *what() const // throw()
+            {
+                return "bad numeric conversion: overflow";
+            }
+
+        };
+
+        ``[#numeric_conversion_negative_overflow]``
+        class negative_overflow : public bad_numeric_cast
+        {
+            public:
+            virtual const char *what() const // throw()
+            {
+                return "bad numeric conversion: negative overflow";
+            }
+        };
+
+        ``[#numeric_conversion_possitive_overflow]``
+        class positive_overflow : public bad_numeric_cast
+        {
+            public:
+            virtual const char *what() const // throw()
+            {
+                return "bad numeric conversion: positive overflow";
+            }
+        };
+
+
+    } }
+
+[#numeric_conversion_policy_overflow_handler_important_note]
+
+[important [*RELEASE NOTE for 1.33]
+Previous to boost version 1.33, the exception class `bad_numeric_cast` was
+named `bad_numeric_conversion`. However, in 1.33, the old function
+`numeric_cast<>` from `boost/cast.hpp` was completly replaced by the
+new `numeric_cast<>` in `boost/numeric/conversion/cast.hpp`
+(and `boost/cast.hpp` is including `boost/numeric/conversion/cast.hpp` now).
+That old function which existed in boost for quite some time used the
+`bad_numeric_cast` as its exception type so I decided to avoid backward
+compatibility problems by adopting it (guessing that the user base for
+the old code is wider than for the new code).
+]
+
+[endsect]
+
+[section Policy Float2IntRounder]
+
+This ['stateless] template policy class specifies the rounding mode used
+for [_float to integral] conversions. It supplies the `nearbyint()`
+static member function exposed by the converter, which means that it
+[_publicly inherits from this policy].
+
+The policy must have the following interface:
+
+    template<class S>
+    struct YourFloat2IntRounderPolicy
+    {
+        typedef S               source_type ;
+        typedef {S or S const&} argument_type ;
+
+        static source_type nearbyint ( argument_type s ) { ... }
+
+        typedef mpl::integral_c<std::float_round_style,std::round_...> round_style ;
+
+    } ;
+
+These are the rounder classes provided by the library (only the specific parts are shown,
+see the general policy form above)
+
+[note
+These classes are not intended to be general purpose rounding functions
+but specific policies for `converter<>`. This is why they are not function objects.
+]
+
+    namespace boost { namespace numeric {
+
+
+        template<class S>
+        struct Trunc
+        {
+            static source_type nearbyint ( argument_type s )
+            {
+                using std::floor ;
+                using std::ceil  ;
+
+                return s >= static_cast<S>(0) ? floor(s) : ceil(s) ;
+            }
+
+            typedef mpl::integral_c<std::float_round_style,std::round_toward_zero> round_style ;
+        } ;
+
+
+        template<class S>
+        struct RoundEven
+        {
+            static source_type nearbyint ( argument_type s )
+            {
+                return impl-defined-value ;
+            }
+
+            typedef mpl::integral_c<std::float_round_style,std::round_to_nearest> round_style ;
+        } ;
+
+
+        template<class S>
+        struct Ceil
+        {
+            static source_type nearbyint ( argument_type s )
+            {
+                using std::ceil ;
+                return ceil(s) ;
+            }
+
+            typedef mpl::integral_c<std::float_round_style,std::round_toward_infinity> round_style ;
+        } ;
+
+
+        template<class S>
+        struct Floor
+        {
+            static source_type nearbyint ( argument_type s )
+            {
+                using std::floor ;
+                return floor(s) ;
+            }
+            typedef mpl::integral_c<std::float_round_style,std::round_toward_neg_infinity> round_style ;
+        } ;
+
+    } } // namespace numeric, namespace boost
+
+[heading Math Functions used by the rounder policies]
+
+The rounder policies supplied by this header use math functions `floor()` and `ceil()`.
+The standard versions of these functions are introduced in context by a using directive,
+so in normal conditions, the standard functions will be used.
+
+However, if there are other visible corresponding overloads an ambiguity could arise.
+In this case, the user can supply her own rounder policy which could, for instance,
+use a fully qualified call.
+
+This technique allows the default rounder policies to be used directly with
+user defined types. The user only requires that suitable overloads of `floor()` and `ceil()`
+be visible. See also [link boost_numericconversion.type_requirements_and_user_defined_types_support User Defined Numeric Types]
+support.
+
+[endsect]
+
+[section Policy RawConverter]
+
+This ['stateless] template policy class is used to perform the 
+actual conversion from Source to Target. It supplies the 
+`low_level_convert()` static member function exposed by the 
+converter, which means that it publicly inherits from this policy.
+
+The policy must have the following interface:
+
+    template<class Traits>
+    struct YourRawConverterPolicy
+    {
+        typedef typename Traits::result_type   result_type   ;
+        typedef typename Traits::argument_type argument_type ;
+
+        static result_type low_level_convert ( argument_type s ) { return <impl defined> ; }
+    } ;
+
+
+This policy is mostly provided as a hook for user defined types which don't support `static_cast<>` conversions to some types
+
+This is the only raw converter policy class provided by the library:
+
+    namespace boost { namespace numeric {
+
+        template<class Traits>
+        struct raw_numeric_converter
+        {
+            typedef typename Traits::result_type   result_type   ;
+            typedef typename Traits::argument_type argument_type ;
+
+            static result_type low_level_convert ( argument_type s )
+            {
+                return static_cast<result_type>(s) ; 
+            }
+        } ;
+
+    } }
+
+[endsect]
+
+[section Policy UserRangeChecker]
+
+This ['stateless] template policy class is used [_only if supplied] 
+to [*override] the internal range checking logic.
+
+It supplies the `validate_range()` static member function 
+exposed by the converter, which means that it publicly inherits 
+from this policy.
+
+The policy must have the following interface:
+
+    template<class Traits>
+    struct YourRangeCheckerPolicy
+    {
+        typedef typename Traits::argument_type argument_type ;
+
+        // Determines if the value 's' fits in the range of the Target type.
+        static range_check_result out_of_range ( argument_type s ) ;
+
+        // Checks whether the value 's' is out_of_range()
+        // and passes the result of the check to the OverflowHandler policy.
+        static void validate_range ( argument_type s )
+        {
+            OverflowHandler()( out_of_range(s) ) ;
+        }
+    } ;
+
+
+This policy is [*only] provided as a hook for user defined types which require
+range checking (which is disabled by default when a UDT is involved).
+The library provides a class: `UseInternalRangeChecker{}`; which is a ['fake]
+`RangeChecker` policy used to signal the converter to use its internal
+range checking implementation.
+
+[endsect]
+
+[endsect]
+
+
+
+
+
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/definitions.qbk

@@ -0,0 +1,550 @@
+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+
+[section Definitions]
+
+[section Introduction]
+
+This section provides definitions of terms used in the Numeric Conversion library.
+
+[blurb [*Notation]
+[_underlined text] denotes terms defined in the C++ standard.
+
+[*bold face] denotes terms defined here but not in the standard.
+]
+
+[endsect]
+
+[section Types and Values]
+
+As defined by the [_C++ Object Model] (§1.7) the [_storage] or memory on which a
+C++ program runs is a contiguous sequence of [_bytes] where each byte is a
+contiguous sequence of bits.
+
+An [_object] is a region of storage (§1.8) and has a type (§3.9).
+
+A [_type] is a discrete set of values.
+
+An object of type `T` has an [_object representation] which is the sequence of
+bytes stored in the object (§3.9/4)
+
+An object of type `T` has a [_value representation] which is the set of
+bits that determine the ['value] of an object of that type (§3.9/4).
+For [_POD] types (§3.9/10), this bitset is given by the object representation,
+but not all the bits in the storage need to participate in the value
+representation (except for character types): for example, some bits might
+be used for padding or there may be trap-bits.
+
+__SPACE__
+
+The [*typed value] that is held by an object is the value which is determined
+by its value representation.
+
+An [*abstract value] (untyped) is the conceptual information that is
+represented in a type (i.e. the number π).
+
+The [*intrinsic value] of an object is the binary value of the sequence of
+unsigned characters which form its object representation.
+
+__SPACE__
+
+['Abstract] values can be [*represented] in a given type.
+
+To [*represent] an abstract value `V` in a type `T` is to obtain a typed value
+`v` which corresponds to the abstract value `V`.
+
+The operation is denoted using the `rep()` operator, as in: `v=rep(V)`.
+`v` is the [*representation] of `V` in the type `T`.
+
+For example, the abstract value π can be represented in the type
+`double` as the `double value M_PI` and in the type `int` as the
+`int value 3`
+
+__SPACE__
+
+Conversely, ['typed values] can be [*abstracted].
+
+To [*abstract] a typed value `v` of type `T` is to obtain the abstract value `V`
+whose representation in `T` is `v`.
+
+The operation is denoted using the `abt()` operator, as in: `V=abt(v)`.
+
+`V` is the [*abstraction] of `v` of type `T`.
+
+Abstraction is just an abstract operation (you can't do it); but it is
+defined nevertheless because it will be used to give the definitions in the
+rest of this document.
+
+[endsect]
+
+[section C++ Arithmetic Types]
+
+The C++ language defines [_fundamental types] (§3.9.1). The following subsets of
+the fundamental types are intended to represent ['numbers]:
+
+[variablelist
+[[[_signed integer types] (§3.9.1/2):][
+`{signed char, signed short int, signed int, signed long int}`
+Can be used to represent general integer numbers (both negative and positive).
+]]
+[[[_unsigned integer types] (§3.9.1/3):][
+`{unsigned char, unsigned short int, unsigned int, unsigned long int}`
+Can be used to represent positive integer numbers with modulo-arithmetic.
+]]
+[[[_floating-point types] (§3.9.1/8):][
+`{float,double,long double}`
+Can be used to represent real numbers.
+]]
+[[[_integral or integer types] (§3.9.1/7):][
+`{{signed integers},{unsigned integers}, bool, char and wchar_t}`
+]]
+[[[_arithmetic types] (§3.9.1/8):][
+`{{integer types},{floating types}}`
+]]
+]
+
+The integer types are required to have a ['binary] value representation.
+
+Additionally, the signed/unsigned integer types of the same base type
+(`short`, `int` or `long`) are required to have the same value representation,
+that is:
+
+             int i = -3 ; // suppose value representation is: 10011 (sign bit + 4 magnitude bits)
+    unsigned int u =  i ; // u is required to have the same 10011 as its value representation.
+
+In other words, the integer types signed/unsigned X use the same value
+representation but a different ['interpretation] of it; that is, their
+['typed values] might differ.
+
+Another consequence of this is that the range for signed X is always a smaller
+subset of the range of unsigned X, as required by §3.9.1/3.
+
+[note
+Always remember that unsigned types, unlike signed types, have modulo-arithmetic;
+that is, they do not overflow.
+This means that:
+
+[*-] Always be extra careful when mixing signed/unsigned types
+
+[*-] Use unsigned types only when you need modulo arithmetic or very very large
+numbers. Don't use unsigned types just because you intend to deal with
+positive values only (you can do this with signed types as well).
+]
+
+
+[endsect]
+
+[section Numeric Types]
+
+This section introduces the following definitions intended to integrate
+arithmetic types with user-defined types which behave like numbers.
+Some definitions are purposely broad in order to include a vast variety of
+user-defined number types.
+
+Within this library, the term ['number] refers to an abstract numeric value.
+
+A type is [*numeric] if:
+
+* It is an arithmetic type, or,
+* It is a user-defined type which
+    * Represents numeric abstract values (i.e. numbers).
+    * Can be converted (either implicitly or explicitly) to/from at least one arithmetic type.
+    * Has [link boost_numericconversion.definitions.range_and_precision range] (possibly unbounded) 
+      and [link boost_numericconversion.definitions.range_and_precision precision] (possibly dynamic or
+      unlimited).
+    * Provides an specialization of `std::numeric_limits`.
+
+A numeric type is [*signed] if the abstract values it represent include negative numbers.
+
+A numeric type is [*unsigned] if the abstract values it represent exclude negative numbers.
+
+A numeric type is [*modulo] if it has modulo-arithmetic (does not overflow).
+
+A numeric type is [*integer] if the abstract values it represent are whole numbers.
+
+A numeric type is [*floating] if the abstract values it represent are real numbers.
+
+An [*arithmetic value] is the typed value of an arithmetic type
+
+A [*numeric value] is the typed value of a numeric type
+
+These definitions simply generalize the standard notions of arithmetic types and
+values by introducing a superset called [_numeric]. All arithmetic types and values are
+numeric types and values, but not vice versa, since user-defined numeric types are not
+arithmetic types.
+
+The following examples clarify the differences between arithmetic and numeric
+types (and values):
+
+
+    // A numeric type which is not an arithmetic type (is user-defined)
+    // and which is intended to represent integer numbers (i.e., an 'integer' numeric type)
+    class MyInt
+    {
+        MyInt ( long long v ) ;
+        long long to_builtin();
+    } ;
+    namespace std {
+    template<> numeric_limits<MyInt> { ... } ;
+    }
+
+    // A 'floating' numeric type (double) which is also an arithmetic type (built-in),
+    // with a float numeric value.
+    double pi = M_PI ;
+
+    // A 'floating' numeric type with a whole numeric value.
+    // NOTE: numeric values are typed valued, hence, they are, for instance,
+    // integer or floating, despite the value itself being whole or including
+    // a fractional part.
+    double two = 2.0 ;
+
+    // An integer numeric type with an integer numeric value.
+    MyInt i(1234);
+
+
+[endsect]
+
+[section Range and Precision]
+
+Given a number set `N`, some of its elements are representable in a numeric type `T`.
+
+The set of representable values of type `T`, or numeric set of `T`, is a set of numeric
+values whose elements are the representation of some subset of `N`.
+
+For example, the interval of `int` values `[INT_MIN,INT_MAX]` is the set of representable
+values of type `int`, i.e. the `int` numeric set, and corresponds to the representation
+of the elements of the interval of abstract values `[abt(INT_MIN),abt(INT_MAX)]` from
+the integer numbers.
+
+Similarly, the interval of `double` values `[-DBL_MAX,DBL_MAX]` is the `double`
+numeric set, which corresponds to the subset of the real numbers from `abt(-DBL_MAX)` to
+`abt(DBL_MAX)`.
+
+__SPACE__
+
+Let [*`next(x)`] denote the lowest numeric value greater than x.
+
+Let [*`prev(x)`] denote the highest numeric value lower then x.
+
+Let [*`v=prev(next(V))`] and [*`v=next(prev(V))`] be identities that relate a numeric
+typed value `v` with a number `V`.
+
+An ordered pair of numeric values `x`,`y` s.t. `x<y` are [*consecutive] iff `next(x)==y`.
+
+The abstract distance between consecutive numeric values is usually referred to as a
+[_Unit in the Last Place], or [*ulp] for short. A ulp is a quantity whose abstract
+magnitude is relative to the numeric values it corresponds to: If the numeric set
+is not evenly distributed, that is, if the abstract distance between consecutive
+numeric values varies along the set -as is the case with the floating-point types-,
+the magnitude of 1ulp after the numeric value `x` might be (usually is) different
+from the magnitude of a 1ulp after the numeric value y for `x!=y`.
+
+Since numbers are inherently ordered, a [*numeric set] of type `T` is an ordered sequence
+of numeric values (of type `T`) of the form:
+
+    REP(T)={l,next(l),next(next(l)),...,prev(prev(h)),prev(h),h}
+
+where `l` and `h` are respectively the lowest and highest values of type `T`, called
+the boundary values of type `T`.
+
+__SPACE__
+
+A numeric set is discrete. It has a [*size] which is the number of numeric values in the set,
+a [*width] which is the abstract difference between the highest and lowest boundary values:
+`[abt(h)-abt(l)]`, and a [*density] which is the relation between its size and width:
+`density=size/width`.
+
+The integer types have density 1, which means that there are no unrepresentable integer
+numbers between `abt(l)` and `abt(h)` (i.e. there are no gaps). On the other hand,
+floating types have density much smaller than 1, which means that there are real numbers
+unrepresented between consecutive floating values (i.e. there are gaps).
+
+__SPACE__
+
+The interval of [_abstract values] `[abt(l),abt(h)]` is the range of the type `T`,
+denoted `R(T)`.
+
+A range is a set of abstract values and not a set of numeric values. In other
+documents, such as the C++ standard, the word `range` is ['sometimes] used as synonym
+for `numeric set`, that is, as the ordered sequence of numeric values from `l` to `h`.
+In this document, however, a range is an abstract interval which subtends the
+numeric set.
+
+For example, the sequence `[-DBL_MAX,DBL_MAX]` is the numeric set of the type
+`double`, and the real interval `[abt(-DBL_MAX),abt(DBL_MAX)]` is its range.
+
+Notice, for instance, that the range of a floating-point type is ['continuous]
+unlike its numeric set.
+
+This definition was chosen because:
+
+* [*(a)] The discrete set of numeric values is already given by the numeric set.
+* [*(b)] Abstract intervals are easier to compare and overlap since only boundary
+values need to be considered.
+
+This definition allows for a concise definition of `subranged` as given in the last section.
+
+The width of a numeric set, as defined, is exactly equivalent to the width of a range.
+
+__SPACE__
+
+The [*precision] of a type is given by the width or density of the numeric set.
+
+For integer types, which have density 1, the precision is conceptually equivalent
+to the range and is determined by the number of bits used in the value representation:
+The higher the number of bits the bigger the size of the numeric set, the wider the
+range, and the higher the precision.
+
+For floating types, which have density <<1, the precision is given not by the width
+of the range but by the density. In a typical implementation, the range is determined
+by the number of bits used in the exponent, and the precision by the number of bits
+used in the mantissa (giving the maximum number of significant digits that can be
+exactly represented). The higher the number of exponent bits the wider the range,
+while the higher the number of mantissa bits, the higher the precision.
+
+[endsect]
+
+[section Exact, Correctly Rounded and Out-Of-Range Representations]
+
+Given an abstract value `V` and a type `T` with its corresponding range `[abt(l),abt(h)]`:
+
+If `V < abt(l)` or `V > abt(h)`, `V` is [*not representable] (cannot be represented) in
+the type `T`, or, equivalently, it's representation in the type `T` is [*out of range],
+or [*overflows].
+
+* If `V < abt(l)`, the [*overflow is negative].
+* If `V > abt(h)`, the [*overflow is positive].
+
+If `V >= abt(l)` and `V <= abt(h)`, `V` is [*representable] (can be represented) in the
+type `T`, or, equivalently, its representation in the type `T` is [*in range], or
+[*does not overflow].
+
+Notice that a numeric type, such as a C++ unsigned type, can define that any `V` does
+not overflow by always representing not `V` itself but the abstract value
+`U = [ V % (abt(h)+1) ]`, which is always in range.
+
+Given an abstract value `V` represented in the type `T` as `v`, the [*roundoff] error
+of the representation is the abstract difference: `(abt(v)-V)`.
+
+Notice that a representation is an ['operation], hence, the roundoff error corresponds
+to the representation operation and not to the numeric value itself
+(i.e. numeric values do not have any error themselves)
+
+* If the roundoff is 0, the representation is [*exact], and `V` is exactly representable
+in the type `T`.
+* If the roundoff is not 0, the representation is [*inexact], and `V` is inexactly
+representable in the type `T`.
+
+If a representation `v` in a type `T` -either exact or inexact-, is any of the adjacents
+of `V` in that type, that is, if `v==prev` or `v==next`, the representation is
+faithfully rounded. If the choice between `prev` and `next` matches a given
+[*rounding direction], it is [*correctly rounded].
+
+All exact representations are correctly rounded, but not all inexact representations are.
+In particular, C++ requires numeric conversions (described below) and the result of
+arithmetic operations (not covered by this document) to be correctly rounded, but
+batch operations propagate roundoff, thus final results are usually incorrectly
+rounded, that is, the numeric value `r` which is the computed result is neither of
+the adjacents of the abstract value `R` which is the theoretical result.
+
+Because a correctly rounded representation is always one of adjacents of the abstract
+value being represented, the roundoff is guaranteed to be at most 1ulp.
+
+The following examples summarize the given definitions. Consider:
+
+* A numeric type `Int` representing integer numbers with a
+['numeric set]: `{-2,-1,0,1,2}` and
+['range]: `[-2,2]`
+* A numeric type `Cardinal` representing integer numbers with a
+['numeric set]: `{0,1,2,3,4,5,6,7,8,9}` and
+['range]: `[0,9]` (no modulo-arithmetic here)
+* A numeric type `Real` representing real numbers with a
+['numeric set]: `{-2.0,-1.5,-1.0,-0.5,-0.0,+0.0,+0.5,+1.0,+1.5,+2.0}` and
+['range]: `[-2.0,+2.0]`
+* A numeric type `Whole` representing real numbers with a
+['numeric set]: `{-2.0,-1.0,0.0,+1.0,+2.0}` and
+['range]: `[-2.0,+2.0]`
+
+First, notice that the types `Real` and `Whole` both represent real numbers,
+have the same range, but different precision.
+
+* The integer number `1` (an abstract value) can be exactly represented
+in any of these types.
+* The integer number `-1` can be exactly represented in `Int`, `Real` and `Whole`,
+but cannot be represented in `Cardinal`, yielding negative overflow.
+* The real number `1.5` can be exactly represented in `Real`, and inexactly
+represented in the other types.
+* If `1.5` is represented as either `1` or `2` in any of the types (except `Real`),
+the representation is correctly rounded.
+* If `0.5` is represented as `+1.5` in the type `Real`, it is incorrectly rounded.
+* `(-2.0,-1.5)` are the `Real` adjacents of any real number in the interval
+`[-2.0,-1.5]`, yet there are no `Real` adjacents for `x < -2.0`, nor for `x > +2.0`.
+
+[endsect]
+
+[section Standard (numeric) Conversions]
+
+The C++ language defines [_Standard Conversions] (§4) some of which are conversions
+between arithmetic types.
+
+These are [_Integral promotions] (§4.5), [_Integral conversions] (§4.7),
+[_Floating point promotions] (§4.6), [_Floating point conversions] (§4.8) and
+[_Floating-integral conversions] (§4.9).
+
+In the sequel, integral and floating point promotions are called [*arithmetic promotions],
+and these plus integral, floating-point and floating-integral conversions are called
+[*arithmetic conversions] (i.e, promotions are conversions).
+
+Promotions, both Integral and Floating point, are ['value-preserving], which means that
+the typed value is not changed with the conversion.
+
+In the sequel, consider a source typed value `s` of type `S`, the source abstract
+value `N=abt(s)`, a destination type `T`; and whenever possible, a result typed value
+`t` of type `T`.
+
+
+Integer to integer conversions are always defined:
+
+* If `T` is unsigned, the abstract value which is effectively represented is not
+`N` but `M=[ N % ( abt(h) + 1 ) ]`, where `h` is the highest unsigned typed
+value of type `T`.
+* If `T` is signed and `N` is not directly representable, the result `t` is
+[_implementation-defined], which means that the C++ implementation is required to
+produce a value `t` even if it is totally unrelated to `s`.
+
+
+Floating to Floating conversions are defined only if `N` is representable;
+if it is not, the conversion has [_undefined behavior].
+
+* If `N` is exactly representable, `t` is required to be the exact representation.
+* If `N` is inexactly representable, `t` is required to be one of the two
+adjacents, with an implementation-defined choice of rounding direction;
+that is, the conversion is required to be correctly rounded.
+
+
+Floating to Integer conversions represent not `N` but `M=trunc(N)`, were
+`trunc()` is to truncate: i.e. to remove the fractional part, if any.
+
+* If `M` is not representable in `T`, the conversion has [_undefined behavior]
+(unless `T` is `bool`, see §4.12).
+
+
+Integer to Floating conversions are always defined.
+
+* If `N` is exactly representable, `t` is required to be the exact representation.
+* If `N` is inexactly representable, `t` is required to be one of the
+two adjacents, with an implementation-defined choice of rounding direction;
+that is, the conversion is required to be correctly rounded.
+
+[endsect]
+
+[section Subranged Conversion Direction, Subtype and Supertype]
+
+Given a source type `S` and a destination type `T`, there is a
+[*conversion direction] denoted: `S->T`.
+
+For any two ranges the following ['range relation] can be defined:
+A range `X` can be ['entirely contained] in a range `Y`, in which case
+it is said that `X` is enclosed by `Y`.
+
+[: [*Formally:] `R(S)` is enclosed by `R(T)` iif `(R(S) intersection R(T)) == R(S)`.]
+
+If the source type range, `R(S)`, is not enclosed in the target type range,
+`R(T)`; that is, if `(R(S) & R(T)) != R(S)`, the conversion direction is said
+to be [*subranged], which means that `R(S)` is not entirely contained in `R(T)`
+and therefore there is some portion of the source range which falls outside
+the target range. In other words, if a conversion direction `S->T` is subranged,
+there are values in `S` which cannot be represented in `T` because they are
+out of range.
+Notice that for `S->T`, the adjective subranged applies to `T`.
+
+Examples:
+
+Given the following numeric types all representing real numbers:
+
+* `X` with numeric set `{-2.0,-1.0,0.0,+1.0,+2.0}` and range `[-2.0,+2.0]`
+* `Y` with numeric set `{-2.0,-1.5,-1.0,-0.5,0.0,+0.5,+1.0,+1.5,+2.0}` and range `[-2.0,+2.0]`
+* `Z` with numeric set `{-1.0,0.0,+1.0}` and range `[-1.0,+1.0]`
+
+For:
+
+[variablelist
+[[(a) X->Y:][
+`R(X) & R(Y) == R(X)`, then `X->Y` is not subranged.
+Thus, all values of type `X` are representable in the type `Y`.
+]]
+[[(b) Y->X:][
+`R(Y) & R(X) == R(Y)`, then `Y->X` is not subranged.
+Thus, all values of type `Y` are representable in the type `X`, but in this case,
+some values are ['inexactly] representable (all the halves).
+(note: it is to permit this case that a range is an interval of abstract values and
+not an interval of typed values)
+]]
+[[(b) X->Z:][
+`R(X) & R(Z) != R(X)`, then `X->Z` is subranged.
+Thus, some values of type `X` are not representable in the type `Z`, they fall
+out of range `(-2.0 and +2.0)`.
+]]
+]
+
+It is possible that `R(S)` is not enclosed by `R(T)`, while neither is `R(T)` enclosed
+by `R(S)`; for example, `UNSIG=[0,255]` is not enclosed by `SIG=[-128,127]`;
+neither is `SIG` enclosed by `UNSIG`.
+This implies that is possible that a conversion direction is subranged both ways.
+This occurs when a mixture of signed/unsigned types are involved and indicates that
+in both directions there are values which can fall out of range.
+
+Given the range relation (subranged or not) of a conversion direction `S->T`, it
+is possible to classify `S` and `T` as [*supertype] and [*subtype]:
+If the conversion is subranged, which means that `T` cannot represent all possible
+values of type `S`, `S` is the supertype and `T` the subtype; otherwise, `T` is the
+supertype and `S` the subtype.
+
+For example:
+
+[: `R(float)=[-FLT_MAX,FLT_MAX]` and `R(double)=[-DBL_MAX,DBL_MAX]` ]
+
+If `FLT_MAX < DBL_MAX`:
+
+* `double->float` is subranged and `supertype=double`, `subtype=float`.
+* `float->double` is not subranged and `supertype=double`, `subtype=float`.
+
+Notice that while `double->float` is subranged, `float->double` is not,
+which yields the same supertype,subtype for both directions.
+
+Now consider:
+
+[: `R(int)=[INT_MIN,INT_MAX]` and `R(unsigned int)=[0,UINT_MAX]` ]
+
+A C++ implementation is required to have `UINT_MAX > INT_MAX` (§3.9/3), so:
+
+* 'int->unsigned' is subranged (negative values fall out of range)
+and `supertype=int`, `subtype=unsigned`.
+* 'unsigned->int' is ['also] subranged (high positive values fall out of range)
+and `supertype=unsigned`, `subtype=int`.
+
+In this case, the conversion is subranged in both directions and the
+supertype,subtype pairs are not invariant (under inversion of direction).
+This indicates that none of the types can represent all the values of the other.
+
+When the supertype is the same for both `S->T` and `T->S`, it is effectively
+indicating a type which can represent all the values of the subtype.
+Consequently, if a conversion `X->Y` is not subranged, but the opposite `(Y->X)` is,
+so that the supertype is always `Y`, it is said that the direction `X->Y` is [*correctly
+rounded value preserving], meaning that all such conversions are guaranteed to
+produce results in range and correctly rounded (even if inexact).
+For example, all integer to floating conversions are correctly rounded value preserving.
+
+[endsect]
+
+[endsect]
+
+

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+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.bounds___traits_class"></a><a class="link" href="bounds___traits_class.html" title="bounds&lt;&gt; traits class">bounds&lt;&gt;
+    traits class</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.introduction">Introduction</a></span></dt>
+<dt><span class="section"><a href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.traits_class_bounds_n_">traits
+      class bounds&lt;N&gt;</a></span></dt>
+<dt><span class="section"><a href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.examples">Examples</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.bounds___traits_class.introduction"></a><a class="link" href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.introduction" title="Introduction">Introduction</a>
+</h3></div></div></div>
+<p>
+        To determine the ranges of numeric types with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span></code>
+        [18.2.1], different syntax have to be used depending on numeric type. Specifically,
+        <code class="computeroutput"><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">min</span><span class="special">()</span></code> for
+        integral types returns the minimum finite value, whereas for floating point
+        types it returns the minimum positive normalized value. The difference in
+        semantics makes client code unnecessarily complex and error prone.
+      </p>
+<p>
+        <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bounds</span><span class="special">&lt;&gt;</span></code>
+        provides a consistent interface for retrieving the maximum finite value,
+        the minimum finite value and the minimum positive normalized value (0 for
+        integral types) for numeric types. The selection of implementation is performed
+        at compile time, so there is no runtime overhead.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.bounds___traits_class.traits_class_bounds_n_"></a><a class="link" href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.traits_class_bounds_n_" title="traits class bounds&lt;N&gt;">traits
+      class bounds&lt;N&gt;</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">N</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">bounds</span>
+<span class="special">{</span>
+    <span class="keyword">static</span> <span class="identifier">N</span> <span class="identifier">lowest</span>  <span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">implementation_defined</span><span class="special">;</span> <span class="special">}</span>
+    <span class="keyword">static</span> <span class="identifier">N</span> <span class="identifier">highest</span> <span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">implementation_defined</span><span class="special">;</span> <span class="special">}</span>
+    <span class="keyword">static</span> <span class="identifier">N</span> <span class="identifier">smallest</span><span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">implementation_defined</span><span class="special">;</span> <span class="special">}</span>
+<span class="special">};</span>
+</pre>
+<h5>
+<a name="boost_numericconversion.bounds___traits_class.traits_class_bounds_n_.h0"></a>
+        <span class="phrase"><a name="boost_numericconversion.bounds___traits_class.traits_class_bounds_n_.members"></a></span><a class="link" href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.traits_class_bounds_n_.members">Members</a>
+      </h5>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="identifier">lowest</span><span class="special">()</span></code>
+        </p></blockquote></div>
+<p>
+        Returns the minimum finite value, equivalent to <code class="computeroutput"><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">min</span><span class="special">()</span></code> when
+        <code class="computeroutput"><span class="identifier">T</span></code> is an integral type, and
+        to <code class="computeroutput"><span class="special">-</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">max</span><span class="special">()</span></code> when
+        <code class="computeroutput"><span class="identifier">T</span></code> is a floating point type.
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="identifier">highest</span><span class="special">()</span></code>
+        </p></blockquote></div>
+<p>
+        Returns the maximum finite value, equivalent to <code class="computeroutput"><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">max</span><span class="special">()</span></code>.
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="identifier">smallest</span><span class="special">()</span></code>
+        </p></blockquote></div>
+<p>
+        Returns the smallest positive normalized value for floating point types with
+        denormalization, or returns 0 for integral types.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.bounds___traits_class.examples"></a><a class="link" href="bounds___traits_class.html#boost_numericconversion.bounds___traits_class.examples" title="Examples">Examples</a>
+</h3></div></div></div>
+<p>
+        The following example demonstrates the use of <code class="computeroutput"><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bounds</span><span class="special">&lt;&gt;</span></code> and the equivalent code using <code class="computeroutput"><span class="identifier">numeric_limits</span></code>:
+      </p>
+<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
+
+<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">numeric</span><span class="special">/</span><span class="identifier">conversion</span><span class="special">/</span><span class="identifier">bounds</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
+<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">limits</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
+
+<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
+
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"numeric::bounds versus numeric_limits example.\n"</span><span class="special">;</span>
+
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"The maximum value for float:\n"</span><span class="special">;</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bounds</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;::</span><span class="identifier">highest</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"\n"</span><span class="special">;</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;::</span><span class="identifier">max</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"\n"</span><span class="special">;</span>
+
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"The minimum value for float:\n"</span><span class="special">;</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bounds</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;::</span><span class="identifier">lowest</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"\n"</span><span class="special">;</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="special">-</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;::</span><span class="identifier">max</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"\n"</span><span class="special">;</span>
+
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"The smallest positive value for float:\n"</span><span class="special">;</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bounds</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;::</span><span class="identifier">smallest</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"\n"</span><span class="special">;</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;::</span><span class="identifier">min</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"\n"</span><span class="special">;</span>
+
+    <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
+<span class="special">}</span>
+</pre>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="type_requirements_and_user_defined_types_support.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="conversion_traits___traits_class.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/boost_numericconversion/conversion_traits___traits_class.html

@@ -0,0 +1,505 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>conversion_traits&lt;&gt; traits class</title>
+<link rel="stylesheet" href="../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
+<link rel="home" href="../index.html" title="Chapter&#160;1.&#160;Boost.NumericConversion">
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+<link rel="prev" href="bounds___traits_class.html" title="bounds&lt;&gt; traits class">
+<link rel="next" href="numeric_converter_policy_classes.html" title="Numeric Converter Policy Classes">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<table cellpadding="2" width="100%"><tr>
+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td>
+<td align="center"><a href="../../../../../../index.html">Home</a></td>
+<td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td>
+<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="../../../../../../more/index.htm">More</a></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="bounds___traits_class.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="numeric_converter_policy_classes.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.conversion_traits___traits_class"></a><a class="link" href="conversion_traits___traits_class.html" title="conversion_traits&lt;&gt; traits class">conversion_traits&lt;&gt;
+    traits class</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types">Types</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.examples">Examples</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types" title="Types">Types</a>
+</h3></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_int_float_mixture_enum">enumeration
+        int_float_mixture_enum</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_sign_mixture_enum">enumeration
+        sign_mixture_enum</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_udt_builtin_mixture_enum">enumeration
+        udt_builtin_mixture_enum</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_int_float_mixture__">template
+        class int_float_mixture&lt;&gt;</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_sign_mixture__">template
+        class sign_mixture&lt;&gt;</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_udt_builtin_mixture__">template
+        class udt_builtin_mixture&lt;&gt;</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_is_subranged__">template
+        class is_subranged&lt;&gt;</a></span></dt>
+<dt><span class="section"><a href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_conversion_traits__">template
+        class conversion_traits&lt;&gt;</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.enumeration_int_float_mixture_enum"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_int_float_mixture_enum" title="enumeration int_float_mixture_enum">enumeration
+        int_float_mixture_enum</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">enum</span> <span class="identifier">int_float_mixture_enum</span>
+    <span class="special">{</span>
+       <span class="identifier">integral_to_integral</span>
+      <span class="special">,</span><span class="identifier">integral_to_float</span>
+      <span class="special">,</span><span class="identifier">float_to_integral</span>
+      <span class="special">,</span><span class="identifier">float_to_float</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.enumeration_sign_mixture_enum"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_sign_mixture_enum" title="enumeration sign_mixture_enum">enumeration
+        sign_mixture_enum</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+<span class="keyword">enum</span> <span class="identifier">sign_mixture_enum</span>
+<span class="special">{</span>
+   <span class="identifier">unsigned_to_unsigned</span>
+  <span class="special">,</span><span class="identifier">signed_to_signed</span>
+  <span class="special">,</span><span class="identifier">signed_to_unsigned</span>
+  <span class="special">,</span><span class="identifier">unsigned_to_signed</span>
+<span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.enumeration_udt_builtin_mixture_enum"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_udt_builtin_mixture_enum" title="enumeration udt_builtin_mixture_enum">enumeration
+        udt_builtin_mixture_enum</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">enum</span> <span class="identifier">udt_builtin_mixture_enum</span>
+    <span class="special">{</span>
+       <span class="identifier">builtin_to_builtin</span>
+      <span class="special">,</span><span class="identifier">builtin_to_udt</span>
+      <span class="special">,</span><span class="identifier">udt_to_builtin</span>
+      <span class="special">,</span><span class="identifier">udt_to_udt</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.template_class_int_float_mixture__"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_int_float_mixture__" title="template class int_float_mixture&lt;&gt;">template
+        class int_float_mixture&lt;&gt;</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">int_float_mixture</span> <span class="special">:</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">int_float_mixture_enum</span><span class="special">,</span> <span class="identifier">impl</span><span class="special">-</span><span class="identifier">def</span><span class="special">-</span><span class="identifier">value</span><span class="special">&gt;</span> <span class="special">{}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+<p>
+          Classifying <code class="computeroutput"><span class="identifier">S</span></code> and <code class="computeroutput"><span class="identifier">T</span></code> as either integral or float, this
+          <a href="../../../../../mpl/doc/refmanual/integral-constant.html" target="_top">MPL's
+          Integral Constant</a> indicates the combination of these attributes.
+        </p>
+<p>
+          Its <code class="computeroutput"><span class="special">::</span><span class="identifier">value</span></code>
+          is of enumeration type <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_int_float_mixture_enum" title="enumeration int_float_mixture_enum"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">int_float_mixture_enum</span></code></a>
+        </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.template_class_sign_mixture__"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_sign_mixture__" title="template class sign_mixture&lt;&gt;">template
+        class sign_mixture&lt;&gt;</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">sign_mixture</span> <span class="special">:</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">sign_mixture_enum</span><span class="special">,</span> <span class="identifier">impl</span><span class="special">-</span><span class="identifier">def</span><span class="special">-</span><span class="identifier">value</span><span class="special">&gt;</span> <span class="special">{}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+<p>
+          Classifying <code class="computeroutput"><span class="identifier">S</span></code> and <code class="computeroutput"><span class="identifier">T</span></code> as either signed or unsigned, this
+          <a href="../../../../../mpl/doc/refmanual/integral-constant.html" target="_top">MPL's
+          Integral Constant</a> indicates the combination of these attributes.
+        </p>
+<p>
+          Its <code class="computeroutput"><span class="special">::</span><span class="identifier">value</span></code>
+          is of enumeration type <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_sign_mixture_enum" title="enumeration sign_mixture_enum"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">sign_mixture_enum</span></code></a>
+        </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.template_class_udt_builtin_mixture__"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_udt_builtin_mixture__" title="template class udt_builtin_mixture&lt;&gt;">template
+        class udt_builtin_mixture&lt;&gt;</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">udt_builtin_mixture</span> <span class="special">:</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">udt_builtin__mixture_enum</span><span class="special">,</span> <span class="identifier">impl</span><span class="special">-</span><span class="identifier">def</span><span class="special">-</span><span class="identifier">value</span><span class="special">&gt;</span> <span class="special">{}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+<p>
+          Classifying <code class="computeroutput"><span class="identifier">S</span></code> and <code class="computeroutput"><span class="identifier">T</span></code> as either user-defined or builtin,
+          this <a href="../../../../../mpl/doc/refmanual/integral-constant.html" target="_top">MPL's
+          Integral Constant</a> indicates the combination of these attributes.
+        </p>
+<p>
+          Its <code class="computeroutput"><span class="special">::</span><span class="identifier">value</span></code>
+          is of enumeration type <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.enumeration_udt_builtin_mixture_enum" title="enumeration udt_builtin_mixture_enum"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">udt_builtin_mixture_enum</span></code></a>
+        </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.template_class_is_subranged__"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_is_subranged__" title="template class is_subranged&lt;&gt;">template
+        class is_subranged&lt;&gt;</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">is_subranged</span> <span class="special">:</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">bool_</span><span class="special">&lt;</span><span class="identifier">impl</span><span class="special">-</span><span class="identifier">def</span><span class="special">-</span><span class="identifier">value</span><span class="special">&gt;</span> <span class="special">{}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace boost::numeric</span>
+</pre>
+<p>
+          Indicates if the range of the target type <code class="computeroutput"><span class="identifier">T</span></code>
+          is a subset of the range of the source type <code class="computeroutput"><span class="identifier">S</span></code>.
+          That is: if there are some source values which fall out of the Target type's
+          range.
+        </p>
+<p>
+          It is a boolean <a href="../../../../../mpl/doc/refmanual/integral-constant.html" target="_top">MPL's
+          Integral Constant</a> .
+        </p>
+<p>
+          It does not indicate if a particular conversion is effectively out of range;
+          it indicates that some conversion might be out of range because not all
+          the source values are representable as Target type.
+        </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.types.template_class_conversion_traits__"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_conversion_traits__" title="template class conversion_traits&lt;&gt;">template
+        class conversion_traits&lt;&gt;</a>
+</h4></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">conversion_traits</span>
+    <span class="special">{</span>
+        <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">int_float_mixture_enum</span>  <span class="special">,</span> <span class="special">...&gt;</span> <span class="identifier">int_float_mixture</span> <span class="special">;</span>
+        <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">sign_mixture_enum</span>       <span class="special">,</span> <span class="special">...&gt;</span> <span class="identifier">sign_mixture</span><span class="special">;</span>
+        <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">udt_builtin_mixture_enum</span><span class="special">,</span> <span class="special">...&gt;</span> <span class="identifier">udt_builtin_mixture</span> <span class="special">;</span>
+
+        <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">bool_</span><span class="special">&lt;...&gt;</span> <span class="identifier">subranged</span> <span class="special">;</span>
+        <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">bool_</span><span class="special">&lt;...&gt;</span> <span class="identifier">trivial</span> <span class="special">;</span>
+
+        <span class="keyword">typedef</span> <span class="identifier">T</span> <span class="identifier">target_type</span>   <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="identifier">S</span> <span class="identifier">source_type</span>   <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="special">...</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="special">...</span> <span class="identifier">result_type</span>   <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="special">...</span> <span class="identifier">supertype</span>     <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="special">...</span> <span class="identifier">subtype</span>       <span class="special">;</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace numeric, namespace boost</span>
+</pre>
+<p>
+          This traits class indicates some properties of a <span class="emphasis"><em>numeric conversion</em></span>
+          direction: from a source type <code class="computeroutput"><span class="identifier">S</span></code>
+          to a target type <code class="computeroutput"><span class="identifier">T</span></code>. It
+          does not indicate the properties of a <span class="emphasis"><em>specific</em></span> conversion,
+          but of the conversion direction. See <a class="link" href="definitions.html#boost_numericconversion.definitions.subranged_conversion_direction__subtype_and_supertype" title="Subranged Conversion Direction, Subtype and Supertype">Definitions</a>
+          for details.
+        </p>
+<p>
+          The traits class provides the following <a href="../../../../../mpl/doc/refmanual/integral-constant.html" target="_top">MPL's
+          Integral Constant</a> \s of enumeration type. They express the combination
+          of certain attributes of the Source and Target types (thus they are call
+          mixture):
+        </p>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+                </th>
+<th>
+                </th>
+</tr></thead>
+<tbody>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>int_float_mixture </strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    Same as given by the traits class <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_int_float_mixture__" title="template class int_float_mixture&lt;&gt;">int_float_mixture</a>
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>sign_mixture </strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    Same as given by the traits class <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_sign_mixture__" title="template class sign_mixture&lt;&gt;">sign_mixture</a>
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>udt_builtin_mixture </strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    Same as given by the traits class <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_udt_builtin_mixture__" title="template class udt_builtin_mixture&lt;&gt;">udt_builtin_mixture</a>
+                  </p>
+                </td>
+</tr>
+</tbody>
+</table></div>
+<p>
+          The traits class provides the following <a href="../../../../../mpl/doc/refmanual/integral-constant.html" target="_top">MPL's
+          Integral Constant</a> \s of boolean type which indicates indirectly
+          the relation between the Source and Target ranges (see <a class="link" href="definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">Definitions</a>
+          for details).
+        </p>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+                </th>
+<th>
+                </th>
+</tr></thead>
+<tbody>
+<tr>
+<td>
+                  <p>
+                    subranged
+                  </p>
+                </td>
+<td>
+                  <p>
+                    Same as given by <a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types.template_class_is_subranged__" title="template class is_subranged&lt;&gt;">is_subranged</a>
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    trivial
+                  </p>
+                </td>
+<td>
+                  <p>
+                    Indicates if both Source and Target, <span class="underline">without
+                    cv-qualifications</span>, are the same type.
+                  </p>
+                  <p>
+                    Its <code class="computeroutput"><span class="special">::</span><span class="identifier">value</span></code>
+                    is of boolean type.
+                  </p>
+                </td>
+</tr>
+</tbody>
+</table></div>
+<p>
+          The traits class provides the following types. They are the Source and
+          Target types classified and qualified for different purposes.
+        </p>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+                </th>
+<th>
+                </th>
+</tr></thead>
+<tbody>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>target_type</strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    The template parameter <code class="computeroutput"><span class="identifier">T</span></code>
+                    without cv-qualifications
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>source_type</strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    The template parameter <code class="computeroutput"><span class="identifier">S</span></code>
+                    without cv-qualifications
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>argument_type</strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    This type is either source_type or <code class="computeroutput"><span class="identifier">source_type</span>
+                    <span class="keyword">const</span><span class="special">&amp;</span></code>.
+                  </p>
+                  <p>
+                    It represents the optimal argument type for the <a class="link" href="converter___function_object.html" title="converter&lt;&gt; function object">converter</a>
+                    member functions.
+                  </p>
+                  <p>
+                    If S is a built-in type, this is <code class="computeroutput"><span class="identifier">source_type</span></code>,
+                    otherwise, this is <code class="computeroutput"><span class="identifier">source_type</span>
+                    <span class="keyword">const</span><span class="special">&amp;</span></code>.
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>result_type</strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    This type is either target_type or target_type const&amp;
+                  </p>
+                  <p>
+                    It represents the return type of the <a class="link" href="converter___function_object.html" title="converter&lt;&gt; function object">converter</a>
+                    member functions.
+                  </p>
+                  <p>
+                    If <code class="computeroutput"><span class="identifier">T</span><span class="special">==</span><span class="identifier">S</span></code>, it is <code class="computeroutput"><span class="identifier">target_type</span>
+                    <span class="keyword">const</span><span class="special">&amp;</span></code>,
+                    otherwise, it is <code class="computeroutput"><span class="identifier">target_type</span></code>.
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>supertype</strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    If the conversion is subranged, it is <code class="computeroutput"><span class="identifier">source_type</span></code>,
+                    otherwise, it is <code class="computeroutput"><span class="identifier">target_type</span></code>
+                  </p>
+                </td>
+</tr>
+<tr>
+<td>
+                  <p>
+                    <span class="bold"><strong>subtype</strong></span>
+                  </p>
+                </td>
+<td>
+                  <p>
+                    If the conversion is subranged, it is <code class="computeroutput"><span class="identifier">target_type</span></code>,
+                    otherwise, it is <code class="computeroutput"><span class="identifier">source_type</span></code>
+                  </p>
+                </td>
+</tr>
+</tbody>
+</table></div>
+</div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.conversion_traits___traits_class.examples"></a><a class="link" href="conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.examples" title="Examples">Examples</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">cassert</span><span class="special">&gt;</span>
+<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">typeinfo</span><span class="special">&gt;</span>
+<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">numeric</span><span class="special">/</span><span class="identifier">conversion</span><span class="special">/</span><span class="identifier">conversion_traits</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
+
+<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
+<span class="special">{</span>
+
+    <span class="comment">// A trivial conversion.</span>
+    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="keyword">short</span><span class="special">,</span><span class="keyword">short</span><span class="special">&gt;</span> <span class="identifier">Short2Short_Traits</span> <span class="special">;</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="identifier">Short2Short_Traits</span><span class="special">::</span><span class="identifier">trivial</span><span class="special">::</span><span class="identifier">value</span> <span class="special">)</span> <span class="special">;</span>
+
+    <span class="comment">// A subranged conversion.</span>
+    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">UInt2Double_Traits</span> <span class="special">;</span>
+    <span class="identifier">assert</span> <span class="special">(</span>  <span class="identifier">UInt2Double_Traits</span><span class="special">::</span><span class="identifier">int_float_mixture</span><span class="special">::</span><span class="identifier">value</span> <span class="special">==</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">integral_to_float</span> <span class="special">)</span> <span class="special">;</span>
+    <span class="identifier">assert</span> <span class="special">(</span>  <span class="identifier">UInt2Double_Traits</span><span class="special">::</span><span class="identifier">sign_mixture</span><span class="special">::</span><span class="identifier">value</span> <span class="special">==</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">unsigned_to_signed</span> <span class="special">)</span> <span class="special">;</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="special">!</span><span class="identifier">UInt2Double_Traits</span><span class="special">::</span><span class="identifier">subranged</span><span class="special">::</span><span class="identifier">value</span> <span class="special">)</span> <span class="special">;</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="keyword">typeid</span><span class="special">(</span><span class="identifier">UInt2Double_Traits</span><span class="special">::</span><span class="identifier">supertype</span><span class="special">)</span> <span class="special">==</span> <span class="keyword">typeid</span><span class="special">(</span><span class="keyword">double</span><span class="special">)</span> <span class="special">)</span> <span class="special">;</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="keyword">typeid</span><span class="special">(</span><span class="identifier">UInt2Double_Traits</span><span class="special">::</span><span class="identifier">subtype</span><span class="special">)</span> <span class="special">==</span> <span class="keyword">typeid</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">)</span> <span class="special">)</span> <span class="special">;</span>
+
+    <span class="comment">// A doubly subranged conversion.</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="keyword">short</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">short</span><span class="special">&gt;::</span><span class="identifier">subranged</span><span class="special">::</span><span class="identifier">value</span><span class="special">)</span> <span class="special">);</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">short</span><span class="special">,</span> <span class="keyword">short</span><span class="special">&gt;::</span><span class="identifier">subranged</span><span class="special">::</span><span class="identifier">value</span><span class="special">)</span> <span class="special">);</span>
+
+    <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
+<span class="special">}</span>
+</pre>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="bounds___traits_class.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="numeric_converter_policy_classes.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

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+<a accesskey="p" href="definitions.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="type_requirements_and_user_defined_types_support.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.converter___function_object"></a><a class="link" href="converter___function_object.html" title="converter&lt;&gt; function object">converter&lt;&gt;
+    function object</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="converter___function_object.html#boost_numericconversion.converter___function_object.synopsis">Synopsis</a></span></dt>
+<dt><span class="section"><a href="converter___function_object.html#boost_numericconversion.converter___function_object.template_parameters">Template
+      parameters</a></span></dt>
+<dt><span class="section"><a href="converter___function_object.html#boost_numericconversion.converter___function_object.member_functions">Member
+      functions</a></span></dt>
+<dt><span class="section"><a href="converter___function_object.html#boost_numericconversion.converter___function_object.range_checking_logic">Range
+      Checking Logic</a></span></dt>
+<dt><span class="section"><a href="converter___function_object.html#boost_numericconversion.converter___function_object.examples">Examples</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.converter___function_object.synopsis"></a><a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.synopsis" title="Synopsis">Synopsis</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span>
+             <span class="keyword">class</span> <span class="identifier">S</span><span class="special">,</span>
+             <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span>          <span class="special">=</span> <span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">S</span><span class="special">&gt;</span>
+             <span class="keyword">class</span> <span class="identifier">OverflowHandler</span>  <span class="special">=</span> <span class="identifier">def_overflow_handler</span><span class="special">,</span>
+             <span class="keyword">class</span> <span class="identifier">Float2IntRounder</span> <span class="special">=</span> <span class="identifier">Trunc</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">source_type</span> <span class="special">&gt;,</span>
+             <span class="keyword">class</span> <span class="identifier">RawConverter</span>     <span class="special">=</span> <span class="identifier">raw_converter</span><span class="special">&lt;</span><span class="identifier">Traits</span><span class="special">&gt;,</span>
+             <span class="keyword">class</span> <span class="identifier">UserRangeChecker</span> <span class="special">=</span> <span class="identifier">UseInternalRangeChecker</span>
+            <span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">converter</span>
+    <span class="special">{</span>
+        <span class="keyword">typedef</span> <span class="identifier">Traits</span> <span class="identifier">traits</span> <span class="special">;</span>
+
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">source_type</span>   <span class="identifier">source_type</span>   <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">argument_type</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">result_type</span>   <span class="identifier">result_type</span>   <span class="special">;</span>
+
+        <span class="keyword">static</span> <span class="identifier">result_type</span> <span class="identifier">convert</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">;</span>
+
+        <span class="identifier">result_type</span> <span class="keyword">operator</span><span class="special">()</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+
+        <span class="comment">// Internal member functions:</span>
+
+        <span class="keyword">static</span> <span class="identifier">range_check_result</span> <span class="identifier">out_of_range</span>      <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">;</span>
+        <span class="keyword">static</span> <span class="keyword">void</span>               <span class="identifier">validate_range</span>    <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">;</span>
+        <span class="keyword">static</span> <span class="identifier">result_type</span>        <span class="identifier">low_level_convert</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">;</span>
+        <span class="keyword">static</span> <span class="identifier">source_type</span>        <span class="identifier">nearbyint</span>         <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">;</span>
+
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace numeric, boost</span>
+</pre>
+<p>
+        <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">converter</span><span class="special">&lt;&gt;</span></code>
+        is a <a href="http://www.sgi.com/tech/stl/UnaryFunction.html" target="_top">Unary Function
+        Object</a> encapsulating the code to perform a numeric conversion with
+        the direction and properties specified by the Traits template parameter.
+        It can optionally take some <a class="link" href="numeric_converter_policy_classes.html" title="Numeric Converter Policy Classes">policies</a>
+        which can be used to customize its behavior. The <code class="computeroutput"><span class="identifier">Traits</span></code>
+        parameter is not a policy but the parameter that defines the conversion.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.converter___function_object.template_parameters"></a><a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.template_parameters" title="Template parameters">Template
+      parameters</a>
+</h3></div></div></div>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+              </th>
+<th>
+              </th>
+</tr></thead>
+<tbody>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">T</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  The <a class="link" href="definitions.html#boost_numericconversion.definitions.numeric_types" title="Numeric Types">Numeric
+                  Type</a> which is the <span class="emphasis"><em>Target</em></span> of the conversion.
+                </p>
+              </td>
+</tr>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">S</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  The <a class="link" href="definitions.html#boost_numericconversion.definitions.numeric_types" title="Numeric Types">Numeric
+                  Type</a> which is the <span class="emphasis"><em>Source</em></span> of the conversion.
+                </p>
+              </td>
+</tr>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">Traits</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  This must be a conversion traits class with the interface of <a class="link" href="conversion_traits___traits_class.html" title="conversion_traits&lt;&gt; traits class"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span></code></a>
+                </p>
+              </td>
+</tr>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">OverflowHandler</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  <span class="bold"><strong>Stateless Policy</strong></span> called to administrate
+                  the result of the range checking.
+                </p>
+                <p>
+                  It is a <span class="bold"><strong>Function Object</strong></span> which
+                  receives the result of <code class="computeroutput"><span class="identifier">out_of_range</span><span class="special">()</span></code> and is called inside the <code class="computeroutput"><span class="identifier">validate_range</span><span class="special">()</span></code>
+                  static member function exposed by the converter.
+                </p>
+              </td>
+</tr>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">Float2IntRounder</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  <span class="bold"><strong>Stateless Policy</strong></span> which specifies
+                  the rounding mode used for float to integral conversions.
+                </p>
+                <p>
+                  It supplies the <code class="computeroutput"><span class="identifier">nearbyint</span><span class="special">()</span></code> static member function exposed
+                  by the converter.
+                </p>
+              </td>
+</tr>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">RawConverter</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  <span class="bold"><strong>Stateless Policy</strong></span> which is used
+                  to perform the actual conversion.
+                </p>
+                <p>
+                  It supplies the <code class="computeroutput"><span class="identifier">low_level_convert</span><span class="special">()</span></code> static member function exposed
+                  by the converter.
+                </p>
+              </td>
+</tr>
+<tr>
+<td>
+                <p>
+                  <code class="computeroutput"><span class="identifier">UserRangeChecker</span></code>
+                </p>
+              </td>
+<td>
+                <p>
+                  <span class="emphasis"><em>Special and Optional</em></span> <span class="bold"><strong>Stateless
+                  Policy</strong></span> which can be used to override the internal range
+                  checking logic.
+                </p>
+                <p>
+                  If given, supplies alternative code for the <code class="computeroutput"><span class="identifier">out_of_range</span><span class="special">()</span></code> and <code class="computeroutput"><span class="identifier">validate_range</span><span class="special">()</span></code> static member functions exposed
+                  by the converter.
+                </p>
+              </td>
+</tr>
+</tbody>
+</table></div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.converter___function_object.member_functions"></a><a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.member_functions" title="Member functions">Member
+      functions</a>
+</h3></div></div></div>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">result_type</span>
+          <span class="identifier">converter</span><span class="special">&lt;&gt;::</span><span class="identifier">convert</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span>
+          <span class="special">)</span> <span class="special">;</span> <span class="comment">// throw</span> </code>
+        </p></blockquote></div>
+<p>
+        This static member function converts an rvalue of type <code class="computeroutput"><span class="identifier">source_type</span></code>
+        to an rvalue of type <code class="computeroutput"><span class="identifier">target_type</span></code>.
+      </p>
+<p>
+        If the conversion requires it, it performs a range checking before the conversion
+        and passes the result of the check to the overflow handler policy (the default
+        policy throws an exception if out-of-range is detected)
+      </p>
+<p>
+        The implementation of this function is actually built from the policies and
+        is basically as follows:
+      </p>
+<pre class="programlisting"><span class="identifier">result_type</span> <span class="identifier">converter</span><span class="special">&lt;&gt;::</span><span class="identifier">convert</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+<span class="special">{</span>
+    <span class="identifier">validate_range</span><span class="special">(</span><span class="identifier">s</span><span class="special">);</span> <span class="comment">// Implemented by the internal range checking logic</span>
+                       <span class="comment">// (which also calls the OverflowHandler policy)</span>
+                       <span class="comment">// or externally supplied by the UserRangeChecker policy.</span>
+
+    <span class="identifier">s</span> <span class="special">=</span> <span class="identifier">nearbyint</span><span class="special">(</span><span class="identifier">s</span><span class="special">);</span> <span class="comment">// Externally supplied by the Float2IntRounder policy.</span>
+                      <span class="comment">// NOTE: This is actually called only for float to int conversions.</span>
+
+    <span class="keyword">return</span> <span class="identifier">low_level_convert</span><span class="special">(</span><span class="identifier">s</span><span class="special">);</span> <span class="comment">// Externally supplied by the RawConverter policy.</span>
+<span class="special">}</span>
+</pre>
+<p>
+        <code class="computeroutput"><span class="identifier">converter</span><span class="special">&lt;&gt;::</span><span class="keyword">operator</span><span class="special">()</span> <span class="keyword">const</span></code> just calls <code class="computeroutput"><span class="identifier">convert</span><span class="special">()</span></code>
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">range_check_result</span>
+          <span class="identifier">numeric_converter</span><span class="special">&lt;&gt;::</span><span class="identifier">out_of_range</span> <span class="special">(</span>
+          <span class="identifier">argument_type</span> <span class="identifier">s</span>
+          <span class="special">)</span> <span class="special">;</span></code>
+        </p></blockquote></div>
+<p>
+        This <a class="link" href="converter___function_object.html#numeric_conversion_converter_internal">internal</a>
+        static member function determines if the value <code class="computeroutput"><span class="identifier">s</span></code>
+        can be represented by the target type without overflow.
+      </p>
+<p>
+        It does not determine if the conversion is <span class="emphasis"><em>exact</em></span>; that
+        is, it does not detect <span class="emphasis"><em>inexact</em></span> conversions, only <span class="emphasis"><em>out-of-range</em></span>
+        conversions (see the <a class="link" href="definitions.html#boost_numericconversion.definitions.exact__correctly_rounded_and_out_of_range_representations" title="Exact, Correctly Rounded and Out-Of-Range Representations">Definitions</a>
+        for further details).
+      </p>
+<p>
+        The return value is of enum type <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.enum_range_check_result" title="enum range_check_result"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">range_check_result</span></code></a>
+      </p>
+<p>
+        The actual code for the range checking logic is optimized for the combined
+        properties of the source and target types. For example, a non-subranged conversion
+        (i.e: <code class="computeroutput"><span class="keyword">int</span></code>-&gt;<code class="computeroutput"><span class="keyword">float</span></code>), requires no range checking, so <code class="computeroutput"><span class="identifier">out_of_range</span><span class="special">()</span></code>
+        returns <code class="computeroutput"><span class="identifier">cInRange</span></code> directly.
+        See the following <a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.range_checking_logic" title="Range Checking Logic">table</a>
+        for more details.
+      </p>
+<p>
+        If the user supplied a <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker" title="Policy UserRangeChecker">UserRangeChecker</a>
+        policy, is this policy which implements this function, so the implementation
+        is user defined, although it is expected to perform the same conceptual check
+        and return the appropriate result.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="keyword">static</span> <span class="keyword">void</span>
+          <span class="identifier">numeric_converter</span><span class="special">&lt;&gt;::</span><span class="identifier">validate_range</span> <span class="special">(</span>
+          <span class="identifier">argument_type</span> <span class="identifier">s</span>
+          <span class="special">)</span> <span class="special">;</span> <span class="comment">// no throw</span> </code>
+        </p></blockquote></div>
+<p>
+        This <a class="link" href="converter___function_object.html#numeric_conversion_converter_internal">internal</a>
+        static member function calls out_of_range(s), and passes the result to the
+        <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler" title="Policy OverflowHandler">OverflowHandler</a>
+        policy class.
+      </p>
+<p>
+        For those Target/Source combinations which don't require range checking,
+        this is an empty inline function.
+      </p>
+<p>
+        If the user supplied a <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker" title="Policy UserRangeChecker">UserRangeChecker</a>
+        policy, is this policy which implements this function, so the implementation
+        is user defined, although it is expected to perform the same action as the
+        default. In particular, it is expected to pass the result of the check to
+        the overflow handler.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">result_type</span>
+          <span class="identifier">numeric_converter</span><span class="special">&lt;&gt;::</span><span class="identifier">low_level_convert</span> <span class="special">(</span>
+          <span class="identifier">argument_type</span> <span class="identifier">s</span>
+          <span class="special">)</span> <span class="special">;</span></code>
+        </p></blockquote></div>
+<p>
+        This <a class="link" href="converter___function_object.html#numeric_conversion_converter_internal">internal</a>
+        static member function performs the actual conversion.
+      </p>
+<p>
+        This function is externally supplied by the <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter" title="Policy RawConverter">RawConverter</a>
+        policy class.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">source_type</span>
+          <span class="identifier">converter</span><span class="special">&lt;&gt;::</span><span class="identifier">nearbyint</span> <span class="special">(</span>
+          <span class="identifier">argument_type</span> <span class="identifier">s</span>
+          <span class="special">)</span> <span class="special">;</span></code>
+        </p></blockquote></div>
+<p>
+        This <a class="link" href="converter___function_object.html#numeric_conversion_converter_internal">internal</a>
+        static member function, which is <span class="underline">only used</span>
+        for <code class="computeroutput"><span class="keyword">float</span></code> to <code class="computeroutput"><span class="keyword">int</span></code>
+        conversions, returns an <span class="emphasis"><em>integer</em></span> value of <span class="emphasis"><em><span class="underline">floating-point type</span></em></span> according to some
+        rounding direction.
+      </p>
+<p>
+        This function is externally supplied by the <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder" title="Policy Float2IntRounder">Float2IntRounder</a>
+        policy class which encapsulates the specific rounding mode.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<a name="numeric_conversion_converter_internal"></a><h5>
+<a name="boost_numericconversion.converter___function_object.member_functions.h0"></a>
+        <span class="phrase"><a name="boost_numericconversion.converter___function_object.member_functions.internal_member_functions"></a></span><a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.member_functions.internal_member_functions">Internal
+        Member Functions</a>
+      </h5>
+<p>
+        These static member functions build the actual conversion code used by <code class="computeroutput"><span class="identifier">convert</span><span class="special">()</span></code>.
+        The user does not have to call these if calling <code class="computeroutput"><span class="identifier">convert</span><span class="special">()</span></code>, since <code class="computeroutput"><span class="identifier">convert</span><span class="special">()</span></code> calls them infernally, but they can be
+        called separately for specific needs.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.converter___function_object.range_checking_logic"></a><a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.range_checking_logic" title="Range Checking Logic">Range
+      Checking Logic</a>
+</h3></div></div></div>
+<p>
+        The following table summarizes the internal range checking logic performed
+        for each combination of the properties of Source and Target.
+      </p>
+<p>
+        LowestT/HighestT denotes the highest and lowest values of the Target type,
+        respectively.
+      </p>
+<p>
+        <code class="computeroutput"><span class="identifier">S</span><span class="special">(</span><span class="identifier">n</span><span class="special">)</span></code> is short
+        for <code class="computeroutput"><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">&gt;(</span><span class="identifier">n</span><span class="special">)</span></code> (<code class="computeroutput"><span class="identifier">S</span></code> denotes the Source type).
+      </p>
+<p>
+        <code class="computeroutput"><span class="identifier">NONE</span></code> indicates that for this
+        case there is no range checking.
+      </p>
+<pre class="programlisting"><code class="literal">
+int_to_int    |--&gt; sig_to_sig     |--&gt; subranged     |--&gt; ( s &gt;= S(LowestT) ) &amp;&amp; ( s &lt;= S(HighestT) )
+              |                   |--&gt; not subranged |--&gt; NONE
+              |
+              |--&gt; unsig_to_unsig |--&gt; subranged     |--&gt; ( s &gt;= S(LowestT) ) &amp;&amp; ( s &lt;= S(HighestT) )
+              |                   |--&gt; not subranged |--&gt; NONE
+              |
+              |--&gt; sig_to_unsig   |--&gt; pos subranged     |--&gt; ( s &gt;= S(0) ) &amp;&amp; ( s &lt;= S(HighestT) )
+              |                   |--&gt; not pos subranged |--&gt; ( s &gt;= S(0) )
+              |
+              |--&gt; unsig_to_sig   |--&gt; subranged     |--&gt; ( s &lt;= S(HighestT) )
+              |                   |--&gt; not subranged |--&gt; NONE
+</code>
+<code class="literal">
+int_to_float   |--&gt; NONE
+</code>
+<code class="literal">
+float_to_int   |--&gt; round_to_zero         |--&gt; ( s &gt;  S(LowestT)-S(1)   ) &amp;&amp; ( s &lt;  S(HighestT)+S(1)   )
+               |--&gt; round_to_even_nearest |--&gt; ( s &gt;= S(LowestT)-S(0.5) ) &amp;&amp; ( s &lt;  S(HighestT)+S(0.5) )
+               |--&gt; round_to_infinity     |--&gt; ( s &gt;  S(LowestT)-S(1)   ) &amp;&amp; ( s &lt;= S(HighestT)        )
+               |--&gt; round_to_neg_infinity |--&gt; ( s &gt;= S(LowestT)        ) &amp;&amp; ( s &lt;  S(HighestT)+S(1)   )
+</code>
+<code class="literal">
+float_to_float |--&gt; subranged     |--&gt; ( s &gt;= S(LowestT) ) &amp;&amp; ( s &lt;= S(HighestT) )
+               |--&gt; not subranged |--&gt; NONE
+</code>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.converter___function_object.examples"></a><a class="link" href="converter___function_object.html#boost_numericconversion.converter___function_object.examples" title="Examples">Examples</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">cassert</span><span class="special">&gt;</span>
+<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">numeric</span><span class="special">/</span><span class="identifier">conversion</span><span class="special">/</span><span class="identifier">converter</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
+
+<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
+
+    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">converter</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">Double2Int</span> <span class="special">;</span>
+
+    <span class="keyword">int</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">Double2Int</span><span class="special">::</span><span class="identifier">convert</span><span class="special">(</span><span class="number">2.0</span><span class="special">);</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="identifier">x</span> <span class="special">==</span> <span class="number">2</span> <span class="special">);</span>
+
+    <span class="keyword">int</span> <span class="identifier">y</span> <span class="special">=</span> <span class="identifier">Double2Int</span><span class="special">()(</span><span class="number">3.14</span><span class="special">);</span> <span class="comment">// As a function object.</span>
+    <span class="identifier">assert</span> <span class="special">(</span> <span class="identifier">y</span> <span class="special">==</span> <span class="number">3</span> <span class="special">)</span> <span class="special">;</span> <span class="comment">// The default rounding is trunc.</span>
+
+    <span class="keyword">try</span>
+    <span class="special">{</span>
+        <span class="keyword">double</span> <span class="identifier">m</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bounds</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;::</span><span class="identifier">highest</span><span class="special">();</span>
+        <span class="keyword">int</span> <span class="identifier">z</span> <span class="special">=</span> <span class="identifier">Double2Int</span><span class="special">::</span><span class="identifier">convert</span><span class="special">(</span><span class="identifier">m</span><span class="special">);</span> <span class="comment">// By default throws positive_overflow()</span>
+    <span class="special">}</span>
+    <span class="keyword">catch</span> <span class="special">(</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">positive_overflow</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="special">)</span>
+    <span class="special">{</span>
+    <span class="special">}</span>
+
+    <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
+<span class="special">}</span>
+</pre>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="definitions.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="type_requirements_and_user_defined_types_support.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/boost_numericconversion/definitions.html

@@ -0,0 +1,974 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>Definitions</title>
+<link rel="stylesheet" href="../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
+<link rel="home" href="../index.html" title="Chapter&#160;1.&#160;Boost.NumericConversion">
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+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td>
+<td align="center"><a href="../../../../../../index.html">Home</a></td>
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+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="../../../../../../more/index.htm">More</a></td>
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+<hr>
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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.definitions"></a><a class="link" href="definitions.html" title="Definitions">Definitions</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.introduction">Introduction</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.types_and_values">Types
+      and Values</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.c___arithmetic_types">C++
+      Arithmetic Types</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.numeric_types">Numeric
+      Types</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.range_and_precision">Range
+      and Precision</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.exact__correctly_rounded_and_out_of_range_representations">Exact,
+      Correctly Rounded and Out-Of-Range Representations</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.standard__numeric__conversions">Standard
+      (numeric) Conversions</a></span></dt>
+<dt><span class="section"><a href="definitions.html#boost_numericconversion.definitions.subranged_conversion_direction__subtype_and_supertype">Subranged
+      Conversion Direction, Subtype and Supertype</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.introduction"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.introduction" title="Introduction">Introduction</a>
+</h3></div></div></div>
+<p>
+        This section provides definitions of terms used in the Numeric Conversion
+        library.
+      </p>
+<div class="sidebar">
+<div class="titlepage"></div>
+<p>
+        <span class="bold"><strong>Notation</strong></span> <span class="underline">underlined
+        text</span> denotes terms defined in the C++ standard.
+      </p>
+<p>
+        <span class="bold"><strong>bold face</strong></span> denotes terms defined here but
+        not in the standard.
+      </p>
+</div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.types_and_values"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.types_and_values" title="Types and Values">Types
+      and Values</a>
+</h3></div></div></div>
+<p>
+        As defined by the <span class="underline">C++ Object Model</span>
+        (&#167;1.7) the <span class="underline">storage</span> or memory on which
+        a C++ program runs is a contiguous sequence of <span class="underline">bytes</span>
+        where each byte is a contiguous sequence of bits.
+      </p>
+<p>
+        An <span class="underline">object</span> is a region of storage (&#167;1.8)
+        and has a type (&#167;3.9).
+      </p>
+<p>
+        A <span class="underline">type</span> is a discrete set of values.
+      </p>
+<p>
+        An object of type <code class="computeroutput"><span class="identifier">T</span></code> has an
+        <span class="underline">object representation</span> which is the
+        sequence of bytes stored in the object (&#167;3.9/4)
+      </p>
+<p>
+        An object of type <code class="computeroutput"><span class="identifier">T</span></code> has a
+        <span class="underline">value representation</span> which is the set
+        of bits that determine the <span class="emphasis"><em>value</em></span> of an object of that
+        type (&#167;3.9/4). For <span class="underline">POD</span> types (&#167;3.9/10),
+        this bitset is given by the object representation, but not all the bits in
+        the storage need to participate in the value representation (except for character
+        types): for example, some bits might be used for padding or there may be
+        trap-bits.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        The <span class="bold"><strong>typed value</strong></span> that is held by an object
+        is the value which is determined by its value representation.
+      </p>
+<p>
+        An <span class="bold"><strong>abstract value</strong></span> (untyped) is the conceptual
+        information that is represented in a type (i.e. the number &#960;).
+      </p>
+<p>
+        The <span class="bold"><strong>intrinsic value</strong></span> of an object is the
+        binary value of the sequence of unsigned characters which form its object
+        representation.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        <span class="emphasis"><em>Abstract</em></span> values can be <span class="bold"><strong>represented</strong></span>
+        in a given type.
+      </p>
+<p>
+        To <span class="bold"><strong>represent</strong></span> an abstract value <code class="computeroutput"><span class="identifier">V</span></code> in a type <code class="computeroutput"><span class="identifier">T</span></code>
+        is to obtain a typed value <code class="computeroutput"><span class="identifier">v</span></code>
+        which corresponds to the abstract value <code class="computeroutput"><span class="identifier">V</span></code>.
+      </p>
+<p>
+        The operation is denoted using the <code class="computeroutput"><span class="identifier">rep</span><span class="special">()</span></code> operator, as in: <code class="computeroutput"><span class="identifier">v</span><span class="special">=</span><span class="identifier">rep</span><span class="special">(</span><span class="identifier">V</span><span class="special">)</span></code>. <code class="computeroutput"><span class="identifier">v</span></code> is the <span class="bold"><strong>representation</strong></span>
+        of <code class="computeroutput"><span class="identifier">V</span></code> in the type <code class="computeroutput"><span class="identifier">T</span></code>.
+      </p>
+<p>
+        For example, the abstract value &#960; can be represented in the type <code class="computeroutput"><span class="keyword">double</span></code> as the <code class="computeroutput"><span class="keyword">double</span>
+        <span class="identifier">value</span> <span class="identifier">M_PI</span></code>
+        and in the type <code class="computeroutput"><span class="keyword">int</span></code> as the
+        <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">value</span>
+        <span class="number">3</span></code>
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        Conversely, <span class="emphasis"><em>typed values</em></span> can be <span class="bold"><strong>abstracted</strong></span>.
+      </p>
+<p>
+        To <span class="bold"><strong>abstract</strong></span> a typed value <code class="computeroutput"><span class="identifier">v</span></code> of type <code class="computeroutput"><span class="identifier">T</span></code>
+        is to obtain the abstract value <code class="computeroutput"><span class="identifier">V</span></code>
+        whose representation in <code class="computeroutput"><span class="identifier">T</span></code>
+        is <code class="computeroutput"><span class="identifier">v</span></code>.
+      </p>
+<p>
+        The operation is denoted using the <code class="computeroutput"><span class="identifier">abt</span><span class="special">()</span></code> operator, as in: <code class="computeroutput"><span class="identifier">V</span><span class="special">=</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">v</span><span class="special">)</span></code>.
+      </p>
+<p>
+        <code class="computeroutput"><span class="identifier">V</span></code> is the <span class="bold"><strong>abstraction</strong></span>
+        of <code class="computeroutput"><span class="identifier">v</span></code> of type <code class="computeroutput"><span class="identifier">T</span></code>.
+      </p>
+<p>
+        Abstraction is just an abstract operation (you can't do it); but it is defined
+        nevertheless because it will be used to give the definitions in the rest
+        of this document.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.c___arithmetic_types"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.c___arithmetic_types" title="C++ Arithmetic Types">C++
+      Arithmetic Types</a>
+</h3></div></div></div>
+<p>
+        The C++ language defines <span class="underline">fundamental types</span>
+        (&#167;3.9.1). The following subsets of the fundamental types are intended to
+        represent <span class="emphasis"><em>numbers</em></span>:
+      </p>
+<div class="variablelist">
+<p class="title"><b></b></p>
+<dl class="variablelist">
+<dt><span class="term"><span class="underline">signed integer types</span> (&#167;3.9.1/2):</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="special">{</span><span class="keyword">signed</span>
+              <span class="keyword">char</span><span class="special">,</span>
+              <span class="keyword">signed</span> <span class="keyword">short</span>
+              <span class="keyword">int</span><span class="special">,</span>
+              <span class="keyword">signed</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">signed</span> <span class="keyword">long</span> <span class="keyword">int</span><span class="special">}</span></code> Can be used to represent general integer
+              numbers (both negative and positive).
+            </p></dd>
+<dt><span class="term"><span class="underline">unsigned integer types</span> (&#167;3.9.1/3):</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="special">{</span><span class="keyword">unsigned</span>
+              <span class="keyword">char</span><span class="special">,</span>
+              <span class="keyword">unsigned</span> <span class="keyword">short</span>
+              <span class="keyword">int</span><span class="special">,</span>
+              <span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">unsigned</span>
+              <span class="keyword">long</span> <span class="keyword">int</span><span class="special">}</span></code> Can be used to represent positive
+              integer numbers with modulo-arithmetic.
+            </p></dd>
+<dt><span class="term"><span class="underline">floating-point types</span> (&#167;3.9.1/8):</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="special">{</span><span class="keyword">float</span><span class="special">,</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">long</span> <span class="keyword">double</span><span class="special">}</span></code>
+              Can be used to represent real numbers.
+            </p></dd>
+<dt><span class="term"><span class="underline">integral or integer types</span> (&#167;3.9.1/7):</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="special">{{</span><span class="keyword">signed</span>
+              <span class="identifier">integers</span><span class="special">},{</span><span class="keyword">unsigned</span> <span class="identifier">integers</span><span class="special">},</span> <span class="keyword">bool</span><span class="special">,</span> <span class="keyword">char</span> <span class="keyword">and</span> <span class="keyword">wchar_t</span><span class="special">}</span></code>
+            </p></dd>
+<dt><span class="term"><span class="underline">arithmetic types</span> (&#167;3.9.1/8):</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="special">{{</span><span class="identifier">integer</span>
+              <span class="identifier">types</span><span class="special">},{</span><span class="identifier">floating</span> <span class="identifier">types</span><span class="special">}}</span></code>
+            </p></dd>
+</dl>
+</div>
+<p>
+        The integer types are required to have a <span class="emphasis"><em>binary</em></span> value
+        representation.
+      </p>
+<p>
+        Additionally, the signed/unsigned integer types of the same base type (<code class="computeroutput"><span class="keyword">short</span></code>, <code class="computeroutput"><span class="keyword">int</span></code>
+        or <code class="computeroutput"><span class="keyword">long</span></code>) are required to have
+        the same value representation, that is:
+      </p>
+<pre class="programlisting">         <span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="special">-</span><span class="number">3</span> <span class="special">;</span> <span class="comment">// suppose value representation is: 10011 (sign bit + 4 magnitude bits)</span>
+<span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">u</span> <span class="special">=</span>  <span class="identifier">i</span> <span class="special">;</span> <span class="comment">// u is required to have the same 10011 as its value representation.</span>
+</pre>
+<p>
+        In other words, the integer types signed/unsigned X use the same value representation
+        but a different <span class="emphasis"><em>interpretation</em></span> of it; that is, their
+        <span class="emphasis"><em>typed values</em></span> might differ.
+      </p>
+<p>
+        Another consequence of this is that the range for signed X is always a smaller
+        subset of the range of unsigned X, as required by &#167;3.9.1/3.
+      </p>
+<div class="note"><table border="0" summary="Note">
+<tr>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td>
+<th align="left">Note</th>
+</tr>
+<tr><td align="left" valign="top">
+<p>
+          Always remember that unsigned types, unlike signed types, have modulo-arithmetic;
+          that is, they do not overflow. This means that:
+        </p>
+<p>
+          <span class="bold"><strong>-</strong></span> Always be extra careful when mixing
+          signed/unsigned types
+        </p>
+<p>
+          <span class="bold"><strong>-</strong></span> Use unsigned types only when you need
+          modulo arithmetic or very very large numbers. Don't use unsigned types
+          just because you intend to deal with positive values only (you can do this
+          with signed types as well).
+        </p>
+</td></tr>
+</table></div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.numeric_types"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.numeric_types" title="Numeric Types">Numeric
+      Types</a>
+</h3></div></div></div>
+<p>
+        This section introduces the following definitions intended to integrate arithmetic
+        types with user-defined types which behave like numbers. Some definitions
+        are purposely broad in order to include a vast variety of user-defined number
+        types.
+      </p>
+<p>
+        Within this library, the term <span class="emphasis"><em>number</em></span> refers to an abstract
+        numeric value.
+      </p>
+<p>
+        A type is <span class="bold"><strong>numeric</strong></span> if:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            It is an arithmetic type, or,
+          </li>
+<li class="listitem">
+            It is a user-defined type which
+            <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
+<li class="listitem">
+                  Represents numeric abstract values (i.e. numbers).
+                </li>
+<li class="listitem">
+                  Can be converted (either implicitly or explicitly) to/from at least
+                  one arithmetic type.
+                </li>
+<li class="listitem">
+                  Has <a class="link" href="definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">range</a>
+                  (possibly unbounded) and <a class="link" href="definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">precision</a>
+                  (possibly dynamic or unlimited).
+                </li>
+<li class="listitem">
+                  Provides an specialization of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span></code>.
+                </li>
+</ul></div>
+          </li>
+</ul></div>
+<p>
+        A numeric type is <span class="bold"><strong>signed</strong></span> if the abstract
+        values it represent include negative numbers.
+      </p>
+<p>
+        A numeric type is <span class="bold"><strong>unsigned</strong></span> if the abstract
+        values it represent exclude negative numbers.
+      </p>
+<p>
+        A numeric type is <span class="bold"><strong>modulo</strong></span> if it has modulo-arithmetic
+        (does not overflow).
+      </p>
+<p>
+        A numeric type is <span class="bold"><strong>integer</strong></span> if the abstract
+        values it represent are whole numbers.
+      </p>
+<p>
+        A numeric type is <span class="bold"><strong>floating</strong></span> if the abstract
+        values it represent are real numbers.
+      </p>
+<p>
+        An <span class="bold"><strong>arithmetic value</strong></span> is the typed value of
+        an arithmetic type
+      </p>
+<p>
+        A <span class="bold"><strong>numeric value</strong></span> is the typed value of a
+        numeric type
+      </p>
+<p>
+        These definitions simply generalize the standard notions of arithmetic types
+        and values by introducing a superset called <span class="underline">numeric</span>.
+        All arithmetic types and values are numeric types and values, but not vice
+        versa, since user-defined numeric types are not arithmetic types.
+      </p>
+<p>
+        The following examples clarify the differences between arithmetic and numeric
+        types (and values):
+      </p>
+<pre class="programlisting"><span class="comment">// A numeric type which is not an arithmetic type (is user-defined)</span>
+<span class="comment">// and which is intended to represent integer numbers (i.e., an 'integer' numeric type)</span>
+<span class="keyword">class</span> <span class="identifier">MyInt</span>
+<span class="special">{</span>
+    <span class="identifier">MyInt</span> <span class="special">(</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span>
+    <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">to_builtin</span><span class="special">();</span>
+<span class="special">}</span> <span class="special">;</span>
+<span class="keyword">namespace</span> <span class="identifier">std</span> <span class="special">{</span>
+<span class="keyword">template</span><span class="special">&lt;&gt;</span> <span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">MyInt</span><span class="special">&gt;</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span> <span class="special">;</span>
+<span class="special">}</span>
+
+<span class="comment">// A 'floating' numeric type (double) which is also an arithmetic type (built-in),</span>
+<span class="comment">// with a float numeric value.</span>
+<span class="keyword">double</span> <span class="identifier">pi</span> <span class="special">=</span> <span class="identifier">M_PI</span> <span class="special">;</span>
+
+<span class="comment">// A 'floating' numeric type with a whole numeric value.</span>
+<span class="comment">// NOTE: numeric values are typed valued, hence, they are, for instance,</span>
+<span class="comment">// integer or floating, despite the value itself being whole or including</span>
+<span class="comment">// a fractional part.</span>
+<span class="keyword">double</span> <span class="identifier">two</span> <span class="special">=</span> <span class="number">2.0</span> <span class="special">;</span>
+
+<span class="comment">// An integer numeric type with an integer numeric value.</span>
+<span class="identifier">MyInt</span> <span class="identifier">i</span><span class="special">(</span><span class="number">1234</span><span class="special">);</span>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.range_and_precision"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">Range
+      and Precision</a>
+</h3></div></div></div>
+<p>
+        Given a number set <code class="computeroutput"><span class="identifier">N</span></code>, some
+        of its elements are representable in a numeric type <code class="computeroutput"><span class="identifier">T</span></code>.
+      </p>
+<p>
+        The set of representable values of type <code class="computeroutput"><span class="identifier">T</span></code>,
+        or numeric set of <code class="computeroutput"><span class="identifier">T</span></code>, is a
+        set of numeric values whose elements are the representation of some subset
+        of <code class="computeroutput"><span class="identifier">N</span></code>.
+      </p>
+<p>
+        For example, the interval of <code class="computeroutput"><span class="keyword">int</span></code>
+        values <code class="computeroutput"><span class="special">[</span><span class="identifier">INT_MIN</span><span class="special">,</span><span class="identifier">INT_MAX</span><span class="special">]</span></code> is the set of representable values of type
+        <code class="computeroutput"><span class="keyword">int</span></code>, i.e. the <code class="computeroutput"><span class="keyword">int</span></code> numeric set, and corresponds to the representation
+        of the elements of the interval of abstract values <code class="computeroutput"><span class="special">[</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">INT_MIN</span><span class="special">),</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">INT_MAX</span><span class="special">)]</span></code>
+        from the integer numbers.
+      </p>
+<p>
+        Similarly, the interval of <code class="computeroutput"><span class="keyword">double</span></code>
+        values <code class="computeroutput"><span class="special">[-</span><span class="identifier">DBL_MAX</span><span class="special">,</span><span class="identifier">DBL_MAX</span><span class="special">]</span></code> is the <code class="computeroutput"><span class="keyword">double</span></code>
+        numeric set, which corresponds to the subset of the real numbers from <code class="computeroutput"><span class="identifier">abt</span><span class="special">(-</span><span class="identifier">DBL_MAX</span><span class="special">)</span></code> to <code class="computeroutput"><span class="identifier">abt</span><span class="special">(</span><span class="identifier">DBL_MAX</span><span class="special">)</span></code>.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        Let <span class="bold"><strong><code class="computeroutput"><span class="identifier">next</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code></strong></span>
+        denote the lowest numeric value greater than x.
+      </p>
+<p>
+        Let <span class="bold"><strong><code class="computeroutput"><span class="identifier">prev</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code></strong></span>
+        denote the highest numeric value lower then x.
+      </p>
+<p>
+        Let <span class="bold"><strong><code class="computeroutput"><span class="identifier">v</span><span class="special">=</span><span class="identifier">prev</span><span class="special">(</span><span class="identifier">next</span><span class="special">(</span><span class="identifier">V</span><span class="special">))</span></code></strong></span> and <span class="bold"><strong><code class="computeroutput"><span class="identifier">v</span><span class="special">=</span><span class="identifier">next</span><span class="special">(</span><span class="identifier">prev</span><span class="special">(</span><span class="identifier">V</span><span class="special">))</span></code></strong></span>
+        be identities that relate a numeric typed value <code class="computeroutput"><span class="identifier">v</span></code>
+        with a number <code class="computeroutput"><span class="identifier">V</span></code>.
+      </p>
+<p>
+        An ordered pair of numeric values <code class="computeroutput"><span class="identifier">x</span></code>,<code class="computeroutput"><span class="identifier">y</span></code> s.t. <code class="computeroutput"><span class="identifier">x</span><span class="special">&lt;</span><span class="identifier">y</span></code> are
+        <span class="bold"><strong>consecutive</strong></span> iff <code class="computeroutput"><span class="identifier">next</span><span class="special">(</span><span class="identifier">x</span><span class="special">)==</span><span class="identifier">y</span></code>.
+      </p>
+<p>
+        The abstract distance between consecutive numeric values is usually referred
+        to as a <span class="underline">Unit in the Last Place</span>, or
+        <span class="bold"><strong>ulp</strong></span> for short. A ulp is a quantity whose
+        abstract magnitude is relative to the numeric values it corresponds to: If
+        the numeric set is not evenly distributed, that is, if the abstract distance
+        between consecutive numeric values varies along the set -as is the case with
+        the floating-point types-, the magnitude of 1ulp after the numeric value
+        <code class="computeroutput"><span class="identifier">x</span></code> might be (usually is) different
+        from the magnitude of a 1ulp after the numeric value y for <code class="computeroutput"><span class="identifier">x</span><span class="special">!=</span><span class="identifier">y</span></code>.
+      </p>
+<p>
+        Since numbers are inherently ordered, a <span class="bold"><strong>numeric set</strong></span>
+        of type <code class="computeroutput"><span class="identifier">T</span></code> is an ordered sequence
+        of numeric values (of type <code class="computeroutput"><span class="identifier">T</span></code>)
+        of the form:
+      </p>
+<pre class="programlisting"><span class="identifier">REP</span><span class="special">(</span><span class="identifier">T</span><span class="special">)={</span><span class="identifier">l</span><span class="special">,</span><span class="identifier">next</span><span class="special">(</span><span class="identifier">l</span><span class="special">),</span><span class="identifier">next</span><span class="special">(</span><span class="identifier">next</span><span class="special">(</span><span class="identifier">l</span><span class="special">)),...,</span><span class="identifier">prev</span><span class="special">(</span><span class="identifier">prev</span><span class="special">(</span><span class="identifier">h</span><span class="special">)),</span><span class="identifier">prev</span><span class="special">(</span><span class="identifier">h</span><span class="special">),</span><span class="identifier">h</span><span class="special">}</span>
+</pre>
+<p>
+        where <code class="computeroutput"><span class="identifier">l</span></code> and <code class="computeroutput"><span class="identifier">h</span></code> are respectively the lowest and highest
+        values of type <code class="computeroutput"><span class="identifier">T</span></code>, called
+        the boundary values of type <code class="computeroutput"><span class="identifier">T</span></code>.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        A numeric set is discrete. It has a <span class="bold"><strong>size</strong></span>
+        which is the number of numeric values in the set, a <span class="bold"><strong>width</strong></span>
+        which is the abstract difference between the highest and lowest boundary
+        values: <code class="computeroutput"><span class="special">[</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)-</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">)]</span></code>, and a <span class="bold"><strong>density</strong></span>
+        which is the relation between its size and width: <code class="computeroutput"><span class="identifier">density</span><span class="special">=</span><span class="identifier">size</span><span class="special">/</span><span class="identifier">width</span></code>.
+      </p>
+<p>
+        The integer types have density 1, which means that there are no unrepresentable
+        integer numbers between <code class="computeroutput"><span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">)</span></code>
+        and <code class="computeroutput"><span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)</span></code> (i.e.
+        there are no gaps). On the other hand, floating types have density much smaller
+        than 1, which means that there are real numbers unrepresented between consecutive
+        floating values (i.e. there are gaps).
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        The interval of <span class="underline">abstract values</span> <code class="computeroutput"><span class="special">[</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">),</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)]</span></code>
+        is the range of the type <code class="computeroutput"><span class="identifier">T</span></code>,
+        denoted <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span></code>.
+      </p>
+<p>
+        A range is a set of abstract values and not a set of numeric values. In other
+        documents, such as the C++ standard, the word <code class="computeroutput"><span class="identifier">range</span></code>
+        is <span class="emphasis"><em>sometimes</em></span> used as synonym for <code class="computeroutput"><span class="identifier">numeric</span>
+        <span class="identifier">set</span></code>, that is, as the ordered sequence
+        of numeric values from <code class="computeroutput"><span class="identifier">l</span></code>
+        to <code class="computeroutput"><span class="identifier">h</span></code>. In this document, however,
+        a range is an abstract interval which subtends the numeric set.
+      </p>
+<p>
+        For example, the sequence <code class="computeroutput"><span class="special">[-</span><span class="identifier">DBL_MAX</span><span class="special">,</span><span class="identifier">DBL_MAX</span><span class="special">]</span></code>
+        is the numeric set of the type <code class="computeroutput"><span class="keyword">double</span></code>,
+        and the real interval <code class="computeroutput"><span class="special">[</span><span class="identifier">abt</span><span class="special">(-</span><span class="identifier">DBL_MAX</span><span class="special">),</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">DBL_MAX</span><span class="special">)]</span></code>
+        is its range.
+      </p>
+<p>
+        Notice, for instance, that the range of a floating-point type is <span class="emphasis"><em>continuous</em></span>
+        unlike its numeric set.
+      </p>
+<p>
+        This definition was chosen because:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            <span class="bold"><strong>(a)</strong></span> The discrete set of numeric values
+            is already given by the numeric set.
+          </li>
+<li class="listitem">
+            <span class="bold"><strong>(b)</strong></span> Abstract intervals are easier to
+            compare and overlap since only boundary values need to be considered.
+          </li>
+</ul></div>
+<p>
+        This definition allows for a concise definition of <code class="computeroutput"><span class="identifier">subranged</span></code>
+        as given in the last section.
+      </p>
+<p>
+        The width of a numeric set, as defined, is exactly equivalent to the width
+        of a range.
+      </p>
+<p>
+        <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
+      </p>
+<p>
+        The <span class="bold"><strong>precision</strong></span> of a type is given by the
+        width or density of the numeric set.
+      </p>
+<p>
+        For integer types, which have density 1, the precision is conceptually equivalent
+        to the range and is determined by the number of bits used in the value representation:
+        The higher the number of bits the bigger the size of the numeric set, the
+        wider the range, and the higher the precision.
+      </p>
+<p>
+        For floating types, which have density &lt;&lt;1, the precision is given
+        not by the width of the range but by the density. In a typical implementation,
+        the range is determined by the number of bits used in the exponent, and the
+        precision by the number of bits used in the mantissa (giving the maximum
+        number of significant digits that can be exactly represented). The higher
+        the number of exponent bits the wider the range, while the higher the number
+        of mantissa bits, the higher the precision.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.exact__correctly_rounded_and_out_of_range_representations"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.exact__correctly_rounded_and_out_of_range_representations" title="Exact, Correctly Rounded and Out-Of-Range Representations">Exact,
+      Correctly Rounded and Out-Of-Range Representations</a>
+</h3></div></div></div>
+<p>
+        Given an abstract value <code class="computeroutput"><span class="identifier">V</span></code>
+        and a type <code class="computeroutput"><span class="identifier">T</span></code> with its corresponding
+        range <code class="computeroutput"><span class="special">[</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">),</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)]</span></code>:
+      </p>
+<p>
+        If <code class="computeroutput"><span class="identifier">V</span> <span class="special">&lt;</span>
+        <span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">)</span></code> or
+        <code class="computeroutput"><span class="identifier">V</span> <span class="special">&gt;</span>
+        <span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)</span></code>, <code class="computeroutput"><span class="identifier">V</span></code> is <span class="bold"><strong>not representable</strong></span>
+        (cannot be represented) in the type <code class="computeroutput"><span class="identifier">T</span></code>,
+        or, equivalently, it's representation in the type <code class="computeroutput"><span class="identifier">T</span></code>
+        is <span class="bold"><strong>out of range</strong></span>, or <span class="bold"><strong>overflows</strong></span>.
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">V</span> <span class="special">&lt;</span>
+            <span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">)</span></code>,
+            the <span class="bold"><strong>overflow is negative</strong></span>.
+          </li>
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">V</span> <span class="special">&gt;</span>
+            <span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)</span></code>,
+            the <span class="bold"><strong>overflow is positive</strong></span>.
+          </li>
+</ul></div>
+<p>
+        If <code class="computeroutput"><span class="identifier">V</span> <span class="special">&gt;=</span>
+        <span class="identifier">abt</span><span class="special">(</span><span class="identifier">l</span><span class="special">)</span></code> and
+        <code class="computeroutput"><span class="identifier">V</span> <span class="special">&lt;=</span>
+        <span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)</span></code>, <code class="computeroutput"><span class="identifier">V</span></code> is <span class="bold"><strong>representable</strong></span>
+        (can be represented) in the type <code class="computeroutput"><span class="identifier">T</span></code>,
+        or, equivalently, its representation in the type <code class="computeroutput"><span class="identifier">T</span></code>
+        is <span class="bold"><strong>in range</strong></span>, or <span class="bold"><strong>does
+        not overflow</strong></span>.
+      </p>
+<p>
+        Notice that a numeric type, such as a C++ unsigned type, can define that
+        any <code class="computeroutput"><span class="identifier">V</span></code> does not overflow by
+        always representing not <code class="computeroutput"><span class="identifier">V</span></code>
+        itself but the abstract value <code class="computeroutput"><span class="identifier">U</span>
+        <span class="special">=</span> <span class="special">[</span> <span class="identifier">V</span> <span class="special">%</span> <span class="special">(</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)+</span><span class="number">1</span><span class="special">)</span>
+        <span class="special">]</span></code>, which is always in range.
+      </p>
+<p>
+        Given an abstract value <code class="computeroutput"><span class="identifier">V</span></code>
+        represented in the type <code class="computeroutput"><span class="identifier">T</span></code>
+        as <code class="computeroutput"><span class="identifier">v</span></code>, the <span class="bold"><strong>roundoff</strong></span>
+        error of the representation is the abstract difference: <code class="computeroutput"><span class="special">(</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">v</span><span class="special">)-</span><span class="identifier">V</span><span class="special">)</span></code>.
+      </p>
+<p>
+        Notice that a representation is an <span class="emphasis"><em>operation</em></span>, hence,
+        the roundoff error corresponds to the representation operation and not to
+        the numeric value itself (i.e. numeric values do not have any error themselves)
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            If the roundoff is 0, the representation is <span class="bold"><strong>exact</strong></span>,
+            and <code class="computeroutput"><span class="identifier">V</span></code> is exactly representable
+            in the type <code class="computeroutput"><span class="identifier">T</span></code>.
+          </li>
+<li class="listitem">
+            If the roundoff is not 0, the representation is <span class="bold"><strong>inexact</strong></span>,
+            and <code class="computeroutput"><span class="identifier">V</span></code> is inexactly representable
+            in the type <code class="computeroutput"><span class="identifier">T</span></code>.
+          </li>
+</ul></div>
+<p>
+        If a representation <code class="computeroutput"><span class="identifier">v</span></code> in
+        a type <code class="computeroutput"><span class="identifier">T</span></code> -either exact or
+        inexact-, is any of the adjacents of <code class="computeroutput"><span class="identifier">V</span></code>
+        in that type, that is, if <code class="computeroutput"><span class="identifier">v</span><span class="special">==</span><span class="identifier">prev</span></code>
+        or <code class="computeroutput"><span class="identifier">v</span><span class="special">==</span><span class="identifier">next</span></code>, the representation is faithfully
+        rounded. If the choice between <code class="computeroutput"><span class="identifier">prev</span></code>
+        and <code class="computeroutput"><span class="identifier">next</span></code> matches a given
+        <span class="bold"><strong>rounding direction</strong></span>, it is <span class="bold"><strong>correctly
+        rounded</strong></span>.
+      </p>
+<p>
+        All exact representations are correctly rounded, but not all inexact representations
+        are. In particular, C++ requires numeric conversions (described below) and
+        the result of arithmetic operations (not covered by this document) to be
+        correctly rounded, but batch operations propagate roundoff, thus final results
+        are usually incorrectly rounded, that is, the numeric value <code class="computeroutput"><span class="identifier">r</span></code> which is the computed result is neither
+        of the adjacents of the abstract value <code class="computeroutput"><span class="identifier">R</span></code>
+        which is the theoretical result.
+      </p>
+<p>
+        Because a correctly rounded representation is always one of adjacents of
+        the abstract value being represented, the roundoff is guaranteed to be at
+        most 1ulp.
+      </p>
+<p>
+        The following examples summarize the given definitions. Consider:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            A numeric type <code class="computeroutput"><span class="identifier">Int</span></code> representing
+            integer numbers with a <span class="emphasis"><em>numeric set</em></span>: <code class="computeroutput"><span class="special">{-</span><span class="number">2</span><span class="special">,-</span><span class="number">1</span><span class="special">,</span><span class="number">0</span><span class="special">,</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">}</span></code> and
+            <span class="emphasis"><em>range</em></span>: <code class="computeroutput"><span class="special">[-</span><span class="number">2</span><span class="special">,</span><span class="number">2</span><span class="special">]</span></code>
+          </li>
+<li class="listitem">
+            A numeric type <code class="computeroutput"><span class="identifier">Cardinal</span></code>
+            representing integer numbers with a <span class="emphasis"><em>numeric set</em></span>:
+            <code class="computeroutput"><span class="special">{</span><span class="number">0</span><span class="special">,</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">,</span><span class="number">4</span><span class="special">,</span><span class="number">5</span><span class="special">,</span><span class="number">6</span><span class="special">,</span><span class="number">7</span><span class="special">,</span><span class="number">8</span><span class="special">,</span><span class="number">9</span><span class="special">}</span></code> and <span class="emphasis"><em>range</em></span>: <code class="computeroutput"><span class="special">[</span><span class="number">0</span><span class="special">,</span><span class="number">9</span><span class="special">]</span></code> (no
+            modulo-arithmetic here)
+          </li>
+<li class="listitem">
+            A numeric type <code class="computeroutput"><span class="identifier">Real</span></code> representing
+            real numbers with a <span class="emphasis"><em>numeric set</em></span>: <code class="computeroutput"><span class="special">{-</span><span class="number">2.0</span><span class="special">,-</span><span class="number">1.5</span><span class="special">,-</span><span class="number">1.0</span><span class="special">,-</span><span class="number">0.5</span><span class="special">,-</span><span class="number">0.0</span><span class="special">,+</span><span class="number">0.0</span><span class="special">,+</span><span class="number">0.5</span><span class="special">,+</span><span class="number">1.0</span><span class="special">,+</span><span class="number">1.5</span><span class="special">,+</span><span class="number">2.0</span><span class="special">}</span></code> and
+            <span class="emphasis"><em>range</em></span>: <code class="computeroutput"><span class="special">[-</span><span class="number">2.0</span><span class="special">,+</span><span class="number">2.0</span><span class="special">]</span></code>
+          </li>
+<li class="listitem">
+            A numeric type <code class="computeroutput"><span class="identifier">Whole</span></code>
+            representing real numbers with a <span class="emphasis"><em>numeric set</em></span>: <code class="computeroutput"><span class="special">{-</span><span class="number">2.0</span><span class="special">,-</span><span class="number">1.0</span><span class="special">,</span><span class="number">0.0</span><span class="special">,+</span><span class="number">1.0</span><span class="special">,+</span><span class="number">2.0</span><span class="special">}</span></code> and
+            <span class="emphasis"><em>range</em></span>: <code class="computeroutput"><span class="special">[-</span><span class="number">2.0</span><span class="special">,+</span><span class="number">2.0</span><span class="special">]</span></code>
+          </li>
+</ul></div>
+<p>
+        First, notice that the types <code class="computeroutput"><span class="identifier">Real</span></code>
+        and <code class="computeroutput"><span class="identifier">Whole</span></code> both represent
+        real numbers, have the same range, but different precision.
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            The integer number <code class="computeroutput"><span class="number">1</span></code> (an
+            abstract value) can be exactly represented in any of these types.
+          </li>
+<li class="listitem">
+            The integer number <code class="computeroutput"><span class="special">-</span><span class="number">1</span></code>
+            can be exactly represented in <code class="computeroutput"><span class="identifier">Int</span></code>,
+            <code class="computeroutput"><span class="identifier">Real</span></code> and <code class="computeroutput"><span class="identifier">Whole</span></code>, but cannot be represented in
+            <code class="computeroutput"><span class="identifier">Cardinal</span></code>, yielding negative
+            overflow.
+          </li>
+<li class="listitem">
+            The real number <code class="computeroutput"><span class="number">1.5</span></code> can be
+            exactly represented in <code class="computeroutput"><span class="identifier">Real</span></code>,
+            and inexactly represented in the other types.
+          </li>
+<li class="listitem">
+            If <code class="computeroutput"><span class="number">1.5</span></code> is represented as
+            either <code class="computeroutput"><span class="number">1</span></code> or <code class="computeroutput"><span class="number">2</span></code> in any of the types (except <code class="computeroutput"><span class="identifier">Real</span></code>), the representation is correctly
+            rounded.
+          </li>
+<li class="listitem">
+            If <code class="computeroutput"><span class="number">0.5</span></code> is represented as
+            <code class="computeroutput"><span class="special">+</span><span class="number">1.5</span></code>
+            in the type <code class="computeroutput"><span class="identifier">Real</span></code>, it
+            is incorrectly rounded.
+          </li>
+<li class="listitem">
+            <code class="computeroutput"><span class="special">(-</span><span class="number">2.0</span><span class="special">,-</span><span class="number">1.5</span><span class="special">)</span></code>
+            are the <code class="computeroutput"><span class="identifier">Real</span></code> adjacents
+            of any real number in the interval <code class="computeroutput"><span class="special">[-</span><span class="number">2.0</span><span class="special">,-</span><span class="number">1.5</span><span class="special">]</span></code>, yet there are no <code class="computeroutput"><span class="identifier">Real</span></code>
+            adjacents for <code class="computeroutput"><span class="identifier">x</span> <span class="special">&lt;</span>
+            <span class="special">-</span><span class="number">2.0</span></code>,
+            nor for <code class="computeroutput"><span class="identifier">x</span> <span class="special">&gt;</span>
+            <span class="special">+</span><span class="number">2.0</span></code>.
+          </li>
+</ul></div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.standard__numeric__conversions"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.standard__numeric__conversions" title="Standard (numeric) Conversions">Standard
+      (numeric) Conversions</a>
+</h3></div></div></div>
+<p>
+        The C++ language defines <span class="underline">Standard Conversions</span>
+        (&#167;4) some of which are conversions between arithmetic types.
+      </p>
+<p>
+        These are <span class="underline">Integral promotions</span> (&#167;4.5),
+        <span class="underline">Integral conversions</span> (&#167;4.7), <span class="underline">Floating point promotions</span> (&#167;4.6), <span class="underline">Floating point conversions</span> (&#167;4.8) and <span class="underline">Floating-integral conversions</span> (&#167;4.9).
+      </p>
+<p>
+        In the sequel, integral and floating point promotions are called <span class="bold"><strong>arithmetic promotions</strong></span>, and these plus integral, floating-point
+        and floating-integral conversions are called <span class="bold"><strong>arithmetic
+        conversions</strong></span> (i.e, promotions are conversions).
+      </p>
+<p>
+        Promotions, both Integral and Floating point, are <span class="emphasis"><em>value-preserving</em></span>,
+        which means that the typed value is not changed with the conversion.
+      </p>
+<p>
+        In the sequel, consider a source typed value <code class="computeroutput"><span class="identifier">s</span></code>
+        of type <code class="computeroutput"><span class="identifier">S</span></code>, the source abstract
+        value <code class="computeroutput"><span class="identifier">N</span><span class="special">=</span><span class="identifier">abt</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></code>, a destination type <code class="computeroutput"><span class="identifier">T</span></code>;
+        and whenever possible, a result typed value <code class="computeroutput"><span class="identifier">t</span></code>
+        of type <code class="computeroutput"><span class="identifier">T</span></code>.
+      </p>
+<p>
+        Integer to integer conversions are always defined:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">T</span></code> is unsigned, the
+            abstract value which is effectively represented is not <code class="computeroutput"><span class="identifier">N</span></code> but <code class="computeroutput"><span class="identifier">M</span><span class="special">=[</span> <span class="identifier">N</span> <span class="special">%</span> <span class="special">(</span> <span class="identifier">abt</span><span class="special">(</span><span class="identifier">h</span><span class="special">)</span> <span class="special">+</span> <span class="number">1</span>
+            <span class="special">)</span> <span class="special">]</span></code>,
+            where <code class="computeroutput"><span class="identifier">h</span></code> is the highest
+            unsigned typed value of type <code class="computeroutput"><span class="identifier">T</span></code>.
+          </li>
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">T</span></code> is signed and <code class="computeroutput"><span class="identifier">N</span></code> is not directly representable, the
+            result <code class="computeroutput"><span class="identifier">t</span></code> is <span class="underline">implementation-defined</span>, which means that
+            the C++ implementation is required to produce a value <code class="computeroutput"><span class="identifier">t</span></code>
+            even if it is totally unrelated to <code class="computeroutput"><span class="identifier">s</span></code>.
+          </li>
+</ul></div>
+<p>
+        Floating to Floating conversions are defined only if <code class="computeroutput"><span class="identifier">N</span></code>
+        is representable; if it is not, the conversion has <span class="underline">undefined
+        behavior</span>.
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">N</span></code> is exactly representable,
+            <code class="computeroutput"><span class="identifier">t</span></code> is required to be the
+            exact representation.
+          </li>
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">N</span></code> is inexactly representable,
+            <code class="computeroutput"><span class="identifier">t</span></code> is required to be one
+            of the two adjacents, with an implementation-defined choice of rounding
+            direction; that is, the conversion is required to be correctly rounded.
+          </li>
+</ul></div>
+<p>
+        Floating to Integer conversions represent not <code class="computeroutput"><span class="identifier">N</span></code>
+        but <code class="computeroutput"><span class="identifier">M</span><span class="special">=</span><span class="identifier">trunc</span><span class="special">(</span><span class="identifier">N</span><span class="special">)</span></code>, were
+        <code class="computeroutput"><span class="identifier">trunc</span><span class="special">()</span></code>
+        is to truncate: i.e. to remove the fractional part, if any.
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+            If <code class="computeroutput"><span class="identifier">M</span></code> is not representable
+            in <code class="computeroutput"><span class="identifier">T</span></code>, the conversion
+            has <span class="underline">undefined behavior</span> (unless
+            <code class="computeroutput"><span class="identifier">T</span></code> is <code class="computeroutput"><span class="keyword">bool</span></code>,
+            see &#167;4.12).
+          </li></ul></div>
+<p>
+        Integer to Floating conversions are always defined.
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">N</span></code> is exactly representable,
+            <code class="computeroutput"><span class="identifier">t</span></code> is required to be the
+            exact representation.
+          </li>
+<li class="listitem">
+            If <code class="computeroutput"><span class="identifier">N</span></code> is inexactly representable,
+            <code class="computeroutput"><span class="identifier">t</span></code> is required to be one
+            of the two adjacents, with an implementation-defined choice of rounding
+            direction; that is, the conversion is required to be correctly rounded.
+          </li>
+</ul></div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.definitions.subranged_conversion_direction__subtype_and_supertype"></a><a class="link" href="definitions.html#boost_numericconversion.definitions.subranged_conversion_direction__subtype_and_supertype" title="Subranged Conversion Direction, Subtype and Supertype">Subranged
+      Conversion Direction, Subtype and Supertype</a>
+</h3></div></div></div>
+<p>
+        Given a source type <code class="computeroutput"><span class="identifier">S</span></code> and
+        a destination type <code class="computeroutput"><span class="identifier">T</span></code>, there
+        is a <span class="bold"><strong>conversion direction</strong></span> denoted: <code class="computeroutput"><span class="identifier">S</span><span class="special">-&gt;</span><span class="identifier">T</span></code>.
+      </p>
+<p>
+        For any two ranges the following <span class="emphasis"><em>range relation</em></span> can
+        be defined: A range <code class="computeroutput"><span class="identifier">X</span></code> can
+        be <span class="emphasis"><em>entirely contained</em></span> in a range <code class="computeroutput"><span class="identifier">Y</span></code>,
+        in which case it is said that <code class="computeroutput"><span class="identifier">X</span></code>
+        is enclosed by <code class="computeroutput"><span class="identifier">Y</span></code>.
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <span class="bold"><strong>Formally:</strong></span> <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code>
+          is enclosed by <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span></code> iif
+          <code class="computeroutput"><span class="special">(</span><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span>
+          <span class="identifier">intersection</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">))</span>
+          <span class="special">==</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code>.
+        </p></blockquote></div>
+<p>
+        If the source type range, <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code>,
+        is not enclosed in the target type range, <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span></code>;
+        that is, if <code class="computeroutput"><span class="special">(</span><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span>
+        <span class="special">&amp;</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">))</span>
+        <span class="special">!=</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code>,
+        the conversion direction is said to be <span class="bold"><strong>subranged</strong></span>,
+        which means that <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code> is not
+        entirely contained in <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span></code> and
+        therefore there is some portion of the source range which falls outside the
+        target range. In other words, if a conversion direction <code class="computeroutput"><span class="identifier">S</span><span class="special">-&gt;</span><span class="identifier">T</span></code>
+        is subranged, there are values in <code class="computeroutput"><span class="identifier">S</span></code>
+        which cannot be represented in <code class="computeroutput"><span class="identifier">T</span></code>
+        because they are out of range. Notice that for <code class="computeroutput"><span class="identifier">S</span><span class="special">-&gt;</span><span class="identifier">T</span></code>,
+        the adjective subranged applies to <code class="computeroutput"><span class="identifier">T</span></code>.
+      </p>
+<p>
+        Examples:
+      </p>
+<p>
+        Given the following numeric types all representing real numbers:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            <code class="computeroutput"><span class="identifier">X</span></code> with numeric set <code class="computeroutput"><span class="special">{-</span><span class="number">2.0</span><span class="special">,-</span><span class="number">1.0</span><span class="special">,</span><span class="number">0.0</span><span class="special">,+</span><span class="number">1.0</span><span class="special">,+</span><span class="number">2.0</span><span class="special">}</span></code> and
+            range <code class="computeroutput"><span class="special">[-</span><span class="number">2.0</span><span class="special">,+</span><span class="number">2.0</span><span class="special">]</span></code>
+          </li>
+<li class="listitem">
+            <code class="computeroutput"><span class="identifier">Y</span></code> with numeric set <code class="computeroutput"><span class="special">{-</span><span class="number">2.0</span><span class="special">,-</span><span class="number">1.5</span><span class="special">,-</span><span class="number">1.0</span><span class="special">,-</span><span class="number">0.5</span><span class="special">,</span><span class="number">0.0</span><span class="special">,+</span><span class="number">0.5</span><span class="special">,+</span><span class="number">1.0</span><span class="special">,+</span><span class="number">1.5</span><span class="special">,+</span><span class="number">2.0</span><span class="special">}</span></code> and range <code class="computeroutput"><span class="special">[-</span><span class="number">2.0</span><span class="special">,+</span><span class="number">2.0</span><span class="special">]</span></code>
+          </li>
+<li class="listitem">
+            <code class="computeroutput"><span class="identifier">Z</span></code> with numeric set <code class="computeroutput"><span class="special">{-</span><span class="number">1.0</span><span class="special">,</span><span class="number">0.0</span><span class="special">,+</span><span class="number">1.0</span><span class="special">}</span></code> and range <code class="computeroutput"><span class="special">[-</span><span class="number">1.0</span><span class="special">,+</span><span class="number">1.0</span><span class="special">]</span></code>
+          </li>
+</ul></div>
+<p>
+        For:
+      </p>
+<div class="variablelist">
+<p class="title"><b></b></p>
+<dl class="variablelist">
+<dt><span class="term">(a) X-&gt;Y:</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span> <span class="special">&amp;</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">Y</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span></code>,
+              then <code class="computeroutput"><span class="identifier">X</span><span class="special">-&gt;</span><span class="identifier">Y</span></code> is not subranged. Thus, all values
+              of type <code class="computeroutput"><span class="identifier">X</span></code> are representable
+              in the type <code class="computeroutput"><span class="identifier">Y</span></code>.
+            </p></dd>
+<dt><span class="term">(b) Y-&gt;X:</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">Y</span><span class="special">)</span> <span class="special">&amp;</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">Y</span><span class="special">)</span></code>,
+              then <code class="computeroutput"><span class="identifier">Y</span><span class="special">-&gt;</span><span class="identifier">X</span></code> is not subranged. Thus, all values
+              of type <code class="computeroutput"><span class="identifier">Y</span></code> are representable
+              in the type <code class="computeroutput"><span class="identifier">X</span></code>, but
+              in this case, some values are <span class="emphasis"><em>inexactly</em></span> representable
+              (all the halves). (note: it is to permit this case that a range is
+              an interval of abstract values and not an interval of typed values)
+            </p></dd>
+<dt><span class="term">(b) X-&gt;Z:</span></dt>
+<dd><p>
+              <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span> <span class="special">&amp;</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">Z</span><span class="special">)</span> <span class="special">!=</span> <span class="identifier">R</span><span class="special">(</span><span class="identifier">X</span><span class="special">)</span></code>,
+              then <code class="computeroutput"><span class="identifier">X</span><span class="special">-&gt;</span><span class="identifier">Z</span></code> is subranged. Thus, some values
+              of type <code class="computeroutput"><span class="identifier">X</span></code> are not representable
+              in the type <code class="computeroutput"><span class="identifier">Z</span></code>, they
+              fall out of range <code class="computeroutput"><span class="special">(-</span><span class="number">2.0</span>
+              <span class="keyword">and</span> <span class="special">+</span><span class="number">2.0</span><span class="special">)</span></code>.
+            </p></dd>
+</dl>
+</div>
+<p>
+        It is possible that <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code> is not
+        enclosed by <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span></code>, while
+        neither is <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span></code> enclosed
+        by <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">S</span><span class="special">)</span></code>; for
+        example, <code class="computeroutput"><span class="identifier">UNSIG</span><span class="special">=[</span><span class="number">0</span><span class="special">,</span><span class="number">255</span><span class="special">]</span></code> is not enclosed by <code class="computeroutput"><span class="identifier">SIG</span><span class="special">=[-</span><span class="number">128</span><span class="special">,</span><span class="number">127</span><span class="special">]</span></code>; neither
+        is <code class="computeroutput"><span class="identifier">SIG</span></code> enclosed by <code class="computeroutput"><span class="identifier">UNSIG</span></code>. This implies that is possible that
+        a conversion direction is subranged both ways. This occurs when a mixture
+        of signed/unsigned types are involved and indicates that in both directions
+        there are values which can fall out of range.
+      </p>
+<p>
+        Given the range relation (subranged or not) of a conversion direction <code class="computeroutput"><span class="identifier">S</span><span class="special">-&gt;</span><span class="identifier">T</span></code>, it is possible to classify <code class="computeroutput"><span class="identifier">S</span></code> and <code class="computeroutput"><span class="identifier">T</span></code>
+        as <span class="bold"><strong>supertype</strong></span> and <span class="bold"><strong>subtype</strong></span>:
+        If the conversion is subranged, which means that <code class="computeroutput"><span class="identifier">T</span></code>
+        cannot represent all possible values of type <code class="computeroutput"><span class="identifier">S</span></code>,
+        <code class="computeroutput"><span class="identifier">S</span></code> is the supertype and <code class="computeroutput"><span class="identifier">T</span></code> the subtype; otherwise, <code class="computeroutput"><span class="identifier">T</span></code> is the supertype and <code class="computeroutput"><span class="identifier">S</span></code>
+        the subtype.
+      </p>
+<p>
+        For example:
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="keyword">float</span><span class="special">)=[-</span><span class="identifier">FLT_MAX</span><span class="special">,</span><span class="identifier">FLT_MAX</span><span class="special">]</span></code>
+          and <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="keyword">double</span><span class="special">)=[-</span><span class="identifier">DBL_MAX</span><span class="special">,</span><span class="identifier">DBL_MAX</span><span class="special">]</span></code>
+        </p></blockquote></div>
+<p>
+        If <code class="computeroutput"><span class="identifier">FLT_MAX</span> <span class="special">&lt;</span>
+        <span class="identifier">DBL_MAX</span></code>:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            <code class="computeroutput"><span class="keyword">double</span><span class="special">-&gt;</span><span class="keyword">float</span></code> is subranged and <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="keyword">double</span></code>,
+            <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="keyword">float</span></code>.
+          </li>
+<li class="listitem">
+            <code class="computeroutput"><span class="keyword">float</span><span class="special">-&gt;</span><span class="keyword">double</span></code> is not subranged and <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="keyword">double</span></code>, <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="keyword">float</span></code>.
+          </li>
+</ul></div>
+<p>
+        Notice that while <code class="computeroutput"><span class="keyword">double</span><span class="special">-&gt;</span><span class="keyword">float</span></code> is subranged, <code class="computeroutput"><span class="keyword">float</span><span class="special">-&gt;</span><span class="keyword">double</span></code>
+        is not, which yields the same supertype,subtype for both directions.
+      </p>
+<p>
+        Now consider:
+      </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+          <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="keyword">int</span><span class="special">)=[</span><span class="identifier">INT_MIN</span><span class="special">,</span><span class="identifier">INT_MAX</span><span class="special">]</span></code> and <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">)=[</span><span class="number">0</span><span class="special">,</span><span class="identifier">UINT_MAX</span><span class="special">]</span></code>
+        </p></blockquote></div>
+<p>
+        A C++ implementation is required to have <code class="computeroutput"><span class="identifier">UINT_MAX</span>
+        <span class="special">&gt;</span> <span class="identifier">INT_MAX</span></code>
+        (&#167;3.9/3), so:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            'int-&gt;unsigned' is subranged (negative values fall out of range) and
+            <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="keyword">int</span></code>, <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="keyword">unsigned</span></code>.
+          </li>
+<li class="listitem">
+            'unsigned-&gt;int' is <span class="emphasis"><em>also</em></span> subranged (high positive
+            values fall out of range) and <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="keyword">unsigned</span></code>,
+            <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="keyword">int</span></code>.
+          </li>
+</ul></div>
+<p>
+        In this case, the conversion is subranged in both directions and the supertype,subtype
+        pairs are not invariant (under inversion of direction). This indicates that
+        none of the types can represent all the values of the other.
+      </p>
+<p>
+        When the supertype is the same for both <code class="computeroutput"><span class="identifier">S</span><span class="special">-&gt;</span><span class="identifier">T</span></code>
+        and <code class="computeroutput"><span class="identifier">T</span><span class="special">-&gt;</span><span class="identifier">S</span></code>, it is effectively indicating a type
+        which can represent all the values of the subtype. Consequently, if a conversion
+        <code class="computeroutput"><span class="identifier">X</span><span class="special">-&gt;</span><span class="identifier">Y</span></code> is not subranged, but the opposite <code class="computeroutput"><span class="special">(</span><span class="identifier">Y</span><span class="special">-&gt;</span><span class="identifier">X</span><span class="special">)</span></code> is,
+        so that the supertype is always <code class="computeroutput"><span class="identifier">Y</span></code>,
+        it is said that the direction <code class="computeroutput"><span class="identifier">X</span><span class="special">-&gt;</span><span class="identifier">Y</span></code>
+        is <span class="bold"><strong>correctly rounded value preserving</strong></span>, meaning
+        that all such conversions are guaranteed to produce results in range and
+        correctly rounded (even if inexact). For example, all integer to floating
+        conversions are correctly rounded value preserving.
+      </p>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
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+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/boost_numericconversion/improved_numeric_cast__.html

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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.improved_numeric_cast__"></a><a class="link" href="improved_numeric_cast__.html" title="Improved numeric_cast&lt;&gt;">Improved
+    numeric_cast&lt;&gt;</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.introduction">Introduction</a></span></dt>
+<dt><span class="section"><a href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast">numeric_cast</a></span></dt>
+<dt><span class="section"><a href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast_traits">numeric_cast_traits</a></span></dt>
+<dt><span class="section"><a href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.examples">Examples</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.improved_numeric_cast__.introduction"></a><a class="link" href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.introduction" title="Introduction">Introduction</a>
+</h3></div></div></div>
+<p>
+        The lack of preservation of range makes conversions between numeric types
+        error prone. This is true for both implicit conversions and explicit conversions
+        (through <code class="computeroutput"><span class="keyword">static_cast</span></code>). <a class="link" href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast" title="numeric_cast"><code class="computeroutput"><span class="identifier">numeric_cast</span></code></a> detects loss of range
+        when a numeric type is converted, and throws an exception if the range cannot
+        be preserved.
+      </p>
+<p>
+        There are several situations where conversions are unsafe:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            Conversions from an integral type with a wider range than the target
+            integral type.
+          </li>
+<li class="listitem">
+            Conversions from unsigned to signed (and vice versa) integral types.
+          </li>
+<li class="listitem">
+            Conversions from floating point types to integral types.
+          </li>
+</ul></div>
+<p>
+        The C++ Standard does not specify the behavior when a numeric type is assigned
+        a value that cannot be represented by the type, except for unsigned integral
+        types [3.9.1.4], which must obey the laws of arithmetic modulo 2n (this implies
+        that the result will be reduced modulo the number that is one greater than
+        the largest value that can be represented). The fact that the behavior for
+        overflow is undefined for all conversions (except the aforementioned unsigned
+        to unsigned) makes any code that may produce positive or negative overflows
+        exposed to portability issues.
+      </p>
+<p>
+        By default <code class="computeroutput"><span class="identifier">numeric_cast</span></code> adheres
+        to the rules for implicit conversions mandated by the C++ Standard, such
+        as truncating floating point types when converting to integral types. The
+        implementation must guarantee that for a conversion to a type that can hold
+        all possible values of the source type, there will be no runtime overhead.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.improved_numeric_cast__.numeric_cast"></a><a class="link" href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast" title="numeric_cast">numeric_cast</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Target</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Source</span><span class="special">&gt;</span> <span class="keyword">inline</span>
+<span class="identifier">Target</span> <span class="identifier">numeric_cast</span><span class="special">(</span> <span class="identifier">Source</span> <span class="identifier">arg</span> <span class="special">)</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="identifier">Target</span><span class="special">,</span> <span class="identifier">Source</span><span class="special">&gt;</span>   <span class="identifier">conv_traits</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">numeric_cast_traits</span><span class="special">&lt;</span><span class="identifier">Target</span><span class="special">,</span> <span class="identifier">Source</span><span class="special">&gt;</span> <span class="identifier">cast_traits</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">converter</span>
+        <span class="special">&lt;</span>
+            <span class="identifier">Target</span><span class="special">,</span>
+            <span class="identifier">Source</span><span class="special">,</span>
+            <span class="identifier">conv_traits</span><span class="special">,</span>
+            <span class="keyword">typename</span> <span class="identifier">cast_traits</span><span class="special">::</span><span class="identifier">overflow_policy</span><span class="special">,</span>
+            <span class="keyword">typename</span> <span class="identifier">cast_traits</span><span class="special">::</span><span class="identifier">rounding_policy</span><span class="special">,</span>
+            <span class="identifier">raw_converter</span><span class="special">&lt;</span><span class="identifier">conv_traits</span><span class="special">&gt;,</span>
+            <span class="keyword">typename</span> <span class="identifier">cast_traits</span><span class="special">::</span><span class="identifier">range_checking_policy</span>
+        <span class="special">&gt;</span> <span class="identifier">converter</span><span class="special">;</span>
+    <span class="keyword">return</span> <span class="identifier">converter</span><span class="special">::</span><span class="identifier">convert</span><span class="special">(</span><span class="identifier">arg</span><span class="special">);</span>
+<span class="special">}</span>
+</pre>
+<p>
+        <code class="computeroutput"><span class="identifier">numeric_cast</span></code> returns the
+        result of converting a value of type Source to a value of type Target. If
+        out-of-range is detected, an overflow policy is executed whose default behavior
+        is to throw an an exception (see <a class="link" href="numeric_converter_policy_classes.html#numeric_conversion_bad_numeric_cast">bad_numeric_cast</a>,
+        <a class="link" href="numeric_converter_policy_classes.html#numeric_conversion_negative_overflow">negative_overflow</a>
+        and <a class="link" href="numeric_converter_policy_classes.html#numeric_conversion_possitive_overflow">positive_overflow</a>
+        ).
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.improved_numeric_cast__.numeric_cast_traits"></a><a class="link" href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast_traits" title="numeric_cast_traits">numeric_cast_traits</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Target</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Source</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">EnableIf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">numeric_cast_traits</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="identifier">def_overflow_handler</span>    <span class="identifier">overflow_policy</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">UseInternalRangeChecker</span> <span class="identifier">range_checking_policy</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">Trunc</span><span class="special">&lt;</span><span class="identifier">Source</span><span class="special">&gt;</span>           <span class="identifier">rounding_policy</span><span class="special">;</span>
+<span class="special">};</span>
+</pre>
+<p>
+        The behavior of <code class="computeroutput"><span class="identifier">numeric_cast</span></code>
+        may be tailored for custom numeric types through the specialization of <code class="computeroutput"><span class="identifier">numeric_cast_traits</span></code>. (see <a class="link" href="type_requirements_and_user_defined_types_support.html" title="Type Requirements and User-defined-types support">User
+        Defined Types</a> for details. )
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.improved_numeric_cast__.examples"></a><a class="link" href="improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.examples" title="Examples">Examples</a>
+</h3></div></div></div>
+<p>
+        The following example performs some typical conversions between numeric types:
+      </p>
+<div class="orderedlist"><ol class="orderedlist" type="1">
+<li class="listitem">
+            include &lt;boost/numeric/conversion/cast.hpp&gt;
+          </li>
+<li class="listitem">
+            include &lt;iostream&gt;
+          </li>
+</ol></div>
+<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
+<span class="special">{</span>
+    <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric_cast</span><span class="special">;</span>
+
+    <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">bad_numeric_cast</span><span class="special">;</span>
+    <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">positive_overflow</span><span class="special">;</span>
+    <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">negative_overflow</span><span class="special">;</span>
+
+    <span class="keyword">try</span>
+    <span class="special">{</span>
+        <span class="keyword">int</span> <span class="identifier">i</span><span class="special">=</span><span class="number">42</span><span class="special">;</span>
+        <span class="keyword">short</span> <span class="identifier">s</span><span class="special">=</span><span class="identifier">numeric_cast</span><span class="special">&lt;</span><span class="keyword">short</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">);</span> <span class="comment">// This conversion succeeds (is in range)</span>
+    <span class="special">}</span>
+    <span class="keyword">catch</span><span class="special">(</span><span class="identifier">negative_overflow</span><span class="special">&amp;</span> <span class="identifier">e</span><span class="special">)</span> <span class="special">{</span>
+        <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">();</span>
+    <span class="special">}</span>
+    <span class="keyword">catch</span><span class="special">(</span><span class="identifier">positive_overflow</span><span class="special">&amp;</span> <span class="identifier">e</span><span class="special">)</span> <span class="special">{</span>
+        <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">();</span>
+    <span class="special">}</span>
+
+    <span class="keyword">try</span>
+    <span class="special">{</span>
+        <span class="keyword">float</span> <span class="identifier">f</span><span class="special">=-</span><span class="number">42.1234</span><span class="special">;</span>
+
+        <span class="comment">// This will cause a boost::numeric::negative_overflow exception to be thrown</span>
+        <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">i</span><span class="special">=</span><span class="identifier">numeric_cast</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">&gt;(</span><span class="identifier">f</span><span class="special">);</span>
+    <span class="special">}</span>
+    <span class="keyword">catch</span><span class="special">(</span><span class="identifier">bad_numeric_cast</span><span class="special">&amp;</span> <span class="identifier">e</span><span class="special">)</span> <span class="special">{</span>
+        <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">();</span>
+    <span class="special">}</span>
+
+    <span class="keyword">double</span> <span class="identifier">d</span><span class="special">=</span> <span class="identifier">f</span> <span class="special">+</span> <span class="identifier">numeric_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="number">123</span><span class="special">);</span> <span class="comment">// int -&gt; double</span>
+
+    <span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="identifier">l</span><span class="special">=</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">long</span><span class="special">&gt;::</span><span class="identifier">max</span><span class="special">();</span>
+
+    <span class="keyword">try</span>
+    <span class="special">{</span>
+        <span class="comment">// This will cause a boost::numeric::positive_overflow exception to be thrown</span>
+        <span class="comment">// NOTE: *operations* on unsigned integral types cannot cause overflow</span>
+        <span class="comment">// but *conversions* to a signed type ARE range checked by numeric_cast.</span>
+
+        <span class="keyword">unsigned</span> <span class="keyword">char</span> <span class="identifier">c</span><span class="special">=</span><span class="identifier">numeric_cast</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">char</span><span class="special">&gt;(</span><span class="identifier">l</span><span class="special">);</span>
+    <span class="special">}</span>
+    <span class="keyword">catch</span><span class="special">(</span><span class="identifier">positive_overflow</span><span class="special">&amp;</span> <span class="identifier">e</span><span class="special">)</span> <span class="special">{</span>
+        <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">();</span>
+    <span class="special">}</span>
+
+
+    <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
+<span class="special">}</span>
+</pre>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.numeric_converter_policy_classes"></a><a class="link" href="numeric_converter_policy_classes.html" title="Numeric Converter Policy Classes">Numeric
+    Converter Policy Classes</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.enum_range_check_result">enum
+      range_check_result</a></span></dt>
+<dt><span class="section"><a href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler">Policy
+      OverflowHandler</a></span></dt>
+<dt><span class="section"><a href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder">Policy
+      Float2IntRounder</a></span></dt>
+<dt><span class="section"><a href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter">Policy
+      RawConverter</a></span></dt>
+<dt><span class="section"><a href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker">Policy
+      UserRangeChecker</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.numeric_converter_policy_classes.enum_range_check_result"></a><a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.enum_range_check_result" title="enum range_check_result">enum
+      range_check_result</a>
+</h3></div></div></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">enum</span> <span class="identifier">range_check_result</span>
+    <span class="special">{</span>
+        <span class="identifier">cInRange</span>     <span class="special">,</span>
+        <span class="identifier">cNegOverflow</span> <span class="special">,</span>
+        <span class="identifier">cPosOverflow</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span>
+</pre>
+<p>
+        Defines the values returned by <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">converter</span><span class="special">&lt;&gt;::</span><span class="identifier">out_of_range</span><span class="special">()</span></code>
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler"></a><a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler" title="Policy OverflowHandler">Policy
+      OverflowHandler</a>
+</h3></div></div></div>
+<p>
+        This <span class="emphasis"><em>stateless</em></span> non-template policy class must be a
+        <span class="emphasis"><em>function object</em></span> and is called to administrate the result
+        of the range checking. It can throw an exception if overflow has been detected
+        by the range checking as indicated by its argument. If it throws, is is recommended
+        that it be <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">bad_cast</span></code> or derived.
+      </p>
+<p>
+        It must have the following interface (it does not has to be a template class):
+      </p>
+<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">YourOverflowHandlerPolicy</span>
+<span class="special">{</span>
+    <span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()</span> <span class="special">(</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_check_result</span> <span class="special">)</span> <span class="special">;</span> <span class="comment">// throw bad_cast or derived</span>
+<span class="special">}</span> <span class="special">;</span>
+</pre>
+<p>
+        It is called with the result of the converter's <code class="computeroutput"><span class="identifier">out_of_range</span><span class="special">()</span></code> inside <code class="computeroutput"><span class="identifier">validate_range</span><span class="special">()</span></code>.
+      </p>
+<p>
+        These are the two overflow handler classes provided by the library:
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">struct</span> <span class="identifier">def_overflow_handler</span>
+    <span class="special">{</span>
+        <span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()</span> <span class="special">(</span> <span class="identifier">range_check_result</span> <span class="identifier">r</span> <span class="special">)</span> <span class="comment">// throw bad_numeric_conversion derived</span>
+        <span class="special">{</span>
+            <span class="keyword">if</span> <span class="special">(</span> <span class="identifier">r</span> <span class="special">==</span> <span class="identifier">cNegOverflow</span> <span class="special">)</span>
+                <span class="keyword">throw</span> <span class="identifier">negative_overflow</span><span class="special">()</span> <span class="special">;</span>
+            <span class="keyword">else</span> <span class="keyword">if</span> <span class="special">(</span> <span class="identifier">r</span> <span class="special">==</span> <span class="identifier">cPosOverflow</span> <span class="special">)</span>
+                <span class="keyword">throw</span> <span class="identifier">positive_overflow</span><span class="special">()</span> <span class="special">;</span>
+        <span class="special">}</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+    <span class="keyword">struct</span> <span class="identifier">silent_overflow_handler</span>
+    <span class="special">{</span>
+        <span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()</span> <span class="special">(</span> <span class="identifier">range_check_result</span> <span class="special">)</span> <span class="comment">// no-throw</span>
+        <span class="special">{}</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span>
+</pre>
+<p>
+        And these are the Exception Classes thrown by the default overflow handler
+        <a class="link" href="numeric_converter_policy_classes.html#numeric_conversion_policy_overflow_handler_important_note">(see
+        IMPORTANT note)</a>
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <a name="numeric_conversion_bad_numeric_cast"></a>
+    <span class="keyword">class</span> <span class="identifier">bad_numeric_cast</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">bad_cast</span>
+    <span class="special">{</span>
+        <span class="keyword">public</span><span class="special">:</span>
+        <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span><span class="identifier">what</span><span class="special">()</span> <span class="keyword">const</span> <span class="comment">// throw()</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="string">"bad numeric conversion: overflow"</span><span class="special">;</span>
+        <span class="special">}</span>
+
+    <span class="special">};</span>
+
+    <a name="numeric_conversion_negative_overflow"></a>
+    <span class="keyword">class</span> <span class="identifier">negative_overflow</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">bad_numeric_cast</span>
+    <span class="special">{</span>
+        <span class="keyword">public</span><span class="special">:</span>
+        <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span><span class="identifier">what</span><span class="special">()</span> <span class="keyword">const</span> <span class="comment">// throw()</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="string">"bad numeric conversion: negative overflow"</span><span class="special">;</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+
+    <a name="numeric_conversion_possitive_overflow"></a>
+    <span class="keyword">class</span> <span class="identifier">positive_overflow</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">bad_numeric_cast</span>
+    <span class="special">{</span>
+        <span class="keyword">public</span><span class="special">:</span>
+        <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span><span class="identifier">what</span><span class="special">()</span> <span class="keyword">const</span> <span class="comment">// throw()</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="string">"bad numeric conversion: positive overflow"</span><span class="special">;</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+
+
+<span class="special">}</span> <span class="special">}</span>
+</pre>
+<a name="numeric_conversion_policy_overflow_handler_important_note"></a><div class="important"><table border="0" summary="Important">
+<tr>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../../doc/src/images/important.png"></td>
+<th align="left">Important</th>
+</tr>
+<tr><td align="left" valign="top"><p>
+          <span class="bold"><strong>RELEASE NOTE for 1.33</strong></span> Previous to boost
+          version 1.33, the exception class <code class="computeroutput"><span class="identifier">bad_numeric_cast</span></code>
+          was named <code class="computeroutput"><span class="identifier">bad_numeric_conversion</span></code>.
+          However, in 1.33, the old function <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code> from <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">cast</span><span class="special">.</span><span class="identifier">hpp</span></code>
+          was completly replaced by the new <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code> in <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">numeric</span><span class="special">/</span><span class="identifier">conversion</span><span class="special">/</span><span class="identifier">cast</span><span class="special">.</span><span class="identifier">hpp</span></code>
+          (and <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">cast</span><span class="special">.</span><span class="identifier">hpp</span></code> is including <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">numeric</span><span class="special">/</span><span class="identifier">conversion</span><span class="special">/</span><span class="identifier">cast</span><span class="special">.</span><span class="identifier">hpp</span></code>
+          now). That old function which existed in boost for quite some time used
+          the <code class="computeroutput"><span class="identifier">bad_numeric_cast</span></code> as
+          its exception type so I decided to avoid backward compatibility problems
+          by adopting it (guessing that the user base for the old code is wider than
+          for the new code).
+        </p></td></tr>
+</table></div>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder"></a><a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder" title="Policy Float2IntRounder">Policy
+      Float2IntRounder</a>
+</h3></div></div></div>
+<p>
+        This <span class="emphasis"><em>stateless</em></span> template policy class specifies the rounding
+        mode used for <span class="underline">float to integral</span> conversions.
+        It supplies the <code class="computeroutput"><span class="identifier">nearbyint</span><span class="special">()</span></code> static member function exposed by the converter,
+        which means that it <span class="underline">publicly inherits from this
+        policy</span>.
+      </p>
+<p>
+        The policy must have the following interface:
+      </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">YourFloat2IntRounderPolicy</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="identifier">S</span>               <span class="identifier">source_type</span> <span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="special">{</span><span class="identifier">S</span> <span class="keyword">or</span> <span class="identifier">S</span> <span class="keyword">const</span><span class="special">&amp;}</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+
+    <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span>
+
+    <span class="keyword">typedef</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">round_</span><span class="special">...&gt;</span> <span class="identifier">round_style</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">;</span>
+</pre>
+<p>
+        These are the rounder classes provided by the library (only the specific
+        parts are shown, see the general policy form above)
+      </p>
+<div class="note"><table border="0" summary="Note">
+<tr>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td>
+<th align="left">Note</th>
+</tr>
+<tr><td align="left" valign="top"><p>
+          These classes are not intended to be general purpose rounding functions
+          but specific policies for <code class="computeroutput"><span class="identifier">converter</span><span class="special">&lt;&gt;</span></code>. This is why they are not function
+          objects.
+        </p></td></tr>
+</table></div>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Trunc</span>
+    <span class="special">{</span>
+        <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">floor</span> <span class="special">;</span>
+            <span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ceil</span>  <span class="special">;</span>
+
+            <span class="keyword">return</span> <span class="identifier">s</span> <span class="special">&gt;=</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">&gt;(</span><span class="number">0</span><span class="special">)</span> <span class="special">?</span> <span class="identifier">floor</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">ceil</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">;</span>
+        <span class="special">}</span>
+
+        <span class="keyword">typedef</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">round_toward_zero</span><span class="special">&gt;</span> <span class="identifier">round_style</span> <span class="special">;</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">RoundEven</span>
+    <span class="special">{</span>
+        <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="identifier">impl</span><span class="special">-</span><span class="identifier">defined</span><span class="special">-</span><span class="identifier">value</span> <span class="special">;</span>
+        <span class="special">}</span>
+
+        <span class="keyword">typedef</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">round_to_nearest</span><span class="special">&gt;</span> <span class="identifier">round_style</span> <span class="special">;</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Ceil</span>
+    <span class="special">{</span>
+        <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ceil</span> <span class="special">;</span>
+            <span class="keyword">return</span> <span class="identifier">ceil</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">;</span>
+        <span class="special">}</span>
+
+        <span class="keyword">typedef</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">round_toward_infinity</span><span class="special">&gt;</span> <span class="identifier">round_style</span> <span class="special">;</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Floor</span>
+    <span class="special">{</span>
+        <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">floor</span> <span class="special">;</span>
+            <span class="keyword">return</span> <span class="identifier">floor</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">;</span>
+        <span class="special">}</span>
+        <span class="keyword">typedef</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">round_toward_neg_infinity</span><span class="special">&gt;</span> <span class="identifier">round_style</span> <span class="special">;</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span> <span class="comment">// namespace numeric, namespace boost</span>
+</pre>
+<h5>
+<a name="boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder.h0"></a>
+        <span class="phrase"><a name="boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder.math_functions_used_by_the_rounder_policies"></a></span><a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder.math_functions_used_by_the_rounder_policies">Math
+        Functions used by the rounder policies</a>
+      </h5>
+<p>
+        The rounder policies supplied by this header use math functions <code class="computeroutput"><span class="identifier">floor</span><span class="special">()</span></code>
+        and <code class="computeroutput"><span class="identifier">ceil</span><span class="special">()</span></code>.
+        The standard versions of these functions are introduced in context by a using
+        directive, so in normal conditions, the standard functions will be used.
+      </p>
+<p>
+        However, if there are other visible corresponding overloads an ambiguity
+        could arise. In this case, the user can supply her own rounder policy which
+        could, for instance, use a fully qualified call.
+      </p>
+<p>
+        This technique allows the default rounder policies to be used directly with
+        user defined types. The user only requires that suitable overloads of <code class="computeroutput"><span class="identifier">floor</span><span class="special">()</span></code>
+        and <code class="computeroutput"><span class="identifier">ceil</span><span class="special">()</span></code>
+        be visible. See also <a class="link" href="type_requirements_and_user_defined_types_support.html" title="Type Requirements and User-defined-types support">User
+        Defined Numeric Types</a> support.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter"></a><a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter" title="Policy RawConverter">Policy
+      RawConverter</a>
+</h3></div></div></div>
+<p>
+        This <span class="emphasis"><em>stateless</em></span> template policy class is used to perform
+        the actual conversion from Source to Target. It supplies the <code class="computeroutput"><span class="identifier">low_level_convert</span><span class="special">()</span></code>
+        static member function exposed by the converter, which means that it publicly
+        inherits from this policy.
+      </p>
+<p>
+        The policy must have the following interface:
+      </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">YourRawConverterPolicy</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">result_type</span>   <span class="identifier">result_type</span>   <span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">argument_type</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+
+    <span class="keyword">static</span> <span class="identifier">result_type</span> <span class="identifier">low_level_convert</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">{</span> <span class="keyword">return</span> <span class="special">&lt;</span><span class="identifier">impl</span> <span class="identifier">defined</span><span class="special">&gt;</span> <span class="special">;</span> <span class="special">}</span>
+<span class="special">}</span> <span class="special">;</span>
+</pre>
+<p>
+        This policy is mostly provided as a hook for user defined types which don't
+        support <code class="computeroutput"><span class="keyword">static_cast</span><span class="special">&lt;&gt;</span></code>
+        conversions to some types
+      </p>
+<p>
+        This is the only raw converter policy class provided by the library:
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">raw_numeric_converter</span>
+    <span class="special">{</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">result_type</span>   <span class="identifier">result_type</span>   <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">argument_type</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+
+        <span class="keyword">static</span> <span class="identifier">result_type</span> <span class="identifier">low_level_convert</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">result_type</span><span class="special">&gt;(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">;</span>
+        <span class="special">}</span>
+    <span class="special">}</span> <span class="special">;</span>
+
+<span class="special">}</span> <span class="special">}</span>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker"></a><a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker" title="Policy UserRangeChecker">Policy
+      UserRangeChecker</a>
+</h3></div></div></div>
+<p>
+        This <span class="emphasis"><em>stateless</em></span> template policy class is used <span class="underline">only if supplied</span> to <span class="bold"><strong>override</strong></span>
+        the internal range checking logic.
+      </p>
+<p>
+        It supplies the <code class="computeroutput"><span class="identifier">validate_range</span><span class="special">()</span></code> static member function exposed by the converter,
+        which means that it publicly inherits from this policy.
+      </p>
+<p>
+        The policy must have the following interface:
+      </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">YourRangeCheckerPolicy</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">argument_type</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+
+    <span class="comment">// Determines if the value 's' fits in the range of the Target type.</span>
+    <span class="keyword">static</span> <span class="identifier">range_check_result</span> <span class="identifier">out_of_range</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span> <span class="special">;</span>
+
+    <span class="comment">// Checks whether the value 's' is out_of_range()</span>
+    <span class="comment">// and passes the result of the check to the OverflowHandler policy.</span>
+    <span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">validate_range</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">OverflowHandler</span><span class="special">()(</span> <span class="identifier">out_of_range</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">)</span> <span class="special">;</span>
+    <span class="special">}</span>
+<span class="special">}</span> <span class="special">;</span>
+</pre>
+<p>
+        This policy is <span class="bold"><strong>only</strong></span> provided as a hook for
+        user defined types which require range checking (which is disabled by default
+        when a UDT is involved). The library provides a class: <code class="computeroutput"><span class="identifier">UseInternalRangeChecker</span><span class="special">{}</span></code>; which is a <span class="emphasis"><em>fake</em></span>
+        <code class="computeroutput"><span class="identifier">RangeChecker</span></code> policy used
+        to signal the converter to use its internal range checking implementation.
+      </p>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="conversion_traits___traits_class.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="improved_numeric_cast__.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/boost_numericconversion/type_requirements_and_user_defined_types_support.html

@@ -0,0 +1,554 @@
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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support"></a><a class="link" href="type_requirements_and_user_defined_types_support.html" title="Type Requirements and User-defined-types support">Type
+    Requirements and User-defined-types support</a>
+</h2></div></div></div>
+<div class="toc"><dl class="toc">
+<dt><span class="section"><a href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.type_requirements">Type
+      Requirements</a></span></dt>
+<dt><span class="section"><a href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics">UDT's
+      special semantics</a></span></dt>
+<dt><span class="section"><a href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.special_policies">Special
+      Policies</a></span></dt>
+<dt><span class="section"><a href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udts_with_numeric_cast">UDTs
+      with numeric_cast</a></span></dt>
+</dl></div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support.type_requirements"></a><a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.type_requirements" title="Type Requirements">Type
+      Requirements</a>
+</h3></div></div></div>
+<p>
+        Both arithmetic (built-in) and user-defined numeric types require proper
+        specialization of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;&gt;</span></code>
+        (that is, with (in-class) integral constants).
+      </p>
+<p>
+        The library uses <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">is_specialized</span></code> to detect whether the type
+        is builtin or user defined, and <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">is_integer</span></code>, <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">is_signed</span></code> to detect whether the type is
+        integer or floating point; and whether it is signed/unsigned.
+      </p>
+<p>
+        The default <code class="computeroutput"><span class="identifier">Float2IntRounder</span></code>
+        policies uses unqualified calls to functions <code class="computeroutput"><span class="identifier">floor</span><span class="special">()</span></code> and <code class="computeroutput"><span class="identifier">ceil</span><span class="special">()</span></code>; but the standard functions are introduced
+        in scope by a using directive:
+      </p>
+<pre class="programlisting"><span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">floor</span> <span class="special">;</span> <span class="keyword">return</span> <span class="identifier">floor</span><span class="special">(</span><span class="identifier">s</span><span class="special">);</span>
+</pre>
+<p>
+        Therefore, for builtin arithmetic types, the std functions will be used.
+        User defined types should provide overloaded versions of these functions
+        in order to use the default rounder policies. If these overloads are defined
+        within a user namespace argument dependent lookup (ADL) should find them,
+        but if your compiler has a weak ADL you might need to put these functions
+        some place else or write your own rounder policy.
+      </p>
+<p>
+        The default <code class="computeroutput"><span class="identifier">Trunc</span><span class="special">&lt;&gt;</span></code>
+        rounder policy needs to determine if the source value is positive or not,
+        and for this it evaluates the expression <code class="computeroutput"><span class="identifier">s</span>
+        <span class="special">&lt;</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">&gt;(</span><span class="number">0</span><span class="special">)</span></code>. Therefore,
+        user defined types require a visible <code class="computeroutput"><span class="keyword">operator</span><span class="special">&lt;</span></code> in order to use the <code class="computeroutput"><span class="identifier">Trunc</span><span class="special">&lt;&gt;</span></code> policy (the default).
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics"></a><a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics" title="UDT's special semantics">UDT's
+      special semantics</a>
+</h3></div></div></div>
+<h5>
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics.h0"></a>
+        <span class="phrase"><a name="boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics.conversion_traits"></a></span><a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics.conversion_traits">Conversion
+        Traits</a>
+      </h5>
+<p>
+        If a User Defined Type is involved in a conversion, it is <span class="emphasis"><em>assumed</em></span>
+        that the UDT has <a class="link" href="definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">wider
+        range</a> than any built-in type, and consequently the values of some
+        <code class="computeroutput"><span class="identifier">converter_traits</span><span class="special">&lt;&gt;</span></code>
+        members are hardwired regardless of the reality. The following table summarizes
+        this:
+      </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+            <code class="computeroutput"><span class="identifier">Target</span><span class="special">=</span></code><span class="emphasis"><em>UDT</em></span>
+            and <code class="computeroutput"><span class="identifier">Source</span><span class="special">=</span></code><span class="emphasis"><em>built-in</em></span>
+            <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">subranged</span><span class="special">=</span><span class="keyword">false</span></code>
+                </li>
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="identifier">Target</span></code>
+                </li>
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="identifier">Source</span></code>
+                </li>
+</ul></div>
+          </li>
+<li class="listitem">
+            <code class="computeroutput"><span class="identifier">Target</span><span class="special">=</span></code><span class="emphasis"><em>built-in</em></span>
+            and <code class="computeroutput"><span class="identifier">Source</span><span class="special">=</span></code><span class="emphasis"><em>UDT</em></span>
+            <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">subranged</span><span class="special">=</span><span class="keyword">true</span></code>
+                </li>
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="identifier">Source</span></code>
+                </li>
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="identifier">Target</span></code>
+                </li>
+</ul></div>
+          </li>
+<li class="listitem">
+            <code class="computeroutput"><span class="identifier">Target</span><span class="special">=</span></code><span class="emphasis"><em>UDT</em></span>
+            and <code class="computeroutput"><span class="identifier">Source</span><span class="special">=</span></code><span class="emphasis"><em>UDT</em></span>
+            <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">subranged</span><span class="special">=</span><span class="keyword">false</span></code>
+                </li>
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">supertype</span><span class="special">=</span><span class="identifier">Target</span></code>
+                </li>
+<li class="listitem">
+                  <code class="computeroutput"><span class="identifier">subtype</span><span class="special">=</span><span class="identifier">Source</span></code>
+                </li>
+</ul></div>
+          </li>
+</ul></div>
+<p>
+        The <code class="computeroutput"><span class="identifier">Traits</span></code> member <code class="computeroutput"><span class="identifier">udt_mixture</span></code> can be used to detect whether
+        a UDT is involved and to infer the validity of the other members as shown
+        above.
+      </p>
+<h5>
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics.h1"></a>
+        <span class="phrase"><a name="boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics.range_checking"></a></span><a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics.range_checking">Range
+        Checking</a>
+      </h5>
+<p>
+        Because User Defined Numeric Types might have peculiar ranges (such as an
+        unbounded range), this library does not attempt to supply a meaningful range
+        checking logic when UDTs are involved in a conversion. Therefore, if either
+        Target or Source are not built-in types, the bundled range checking of the
+        <code class="computeroutput"><span class="identifier">converter</span><span class="special">&lt;&gt;</span></code>
+        function object is automatically disabled. However, it is possible to supply
+        a user-defined range-checker. See <a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.special_policies" title="Special Policies">Special
+        Policies</a>
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support.special_policies"></a><a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.special_policies" title="Special Policies">Special
+      Policies</a>
+</h3></div></div></div>
+<p>
+        There are two components of the <code class="computeroutput"><span class="identifier">converter</span><span class="special">&lt;&gt;</span></code> class that might require special
+        behavior if User Defined Numeric Types are involved: the Range Checking and
+        the Raw Conversion.
+      </p>
+<p>
+        When both Target and Source are built-in types, the converter class uses
+        an internal range checking logic which is optimized and customized for the
+        combined properties of the types.
+      </p>
+<p>
+        However, this internal logic is disabled when either type is User Defined.
+        In this case, the user can specify an <span class="emphasis"><em>external</em></span> range
+        checking policy which will be used in place of the internal code. See <a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udts_with_numeric_cast" title="UDTs with numeric_cast">numeric_cast_traits</a>
+        for details on using UDTs with <code class="computeroutput"><span class="identifier">numeric_cast</span></code>.
+      </p>
+<p>
+        The converter class performs the actual conversion using a Raw Converter
+        policy. The default raw converter simply performs a <code class="computeroutput"><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">Target</span><span class="special">&gt;(</span><span class="identifier">source</span><span class="special">)</span></code>.
+      </p>
+<p>
+        However, if the a UDT is involved, the <code class="computeroutput"><span class="keyword">static_cast</span></code>
+        might not work. In this case, the user can implement and pass a different
+        raw converter policy. See <a class="link" href="numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter" title="Policy RawConverter">RawConverter</a>
+        policy for details.
+      </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="boost_numericconversion.type_requirements_and_user_defined_types_support.udts_with_numeric_cast"></a><a class="link" href="type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udts_with_numeric_cast" title="UDTs with numeric_cast">UDTs
+      with numeric_cast</a>
+</h3></div></div></div>
+<p>
+        In order to employ UDTs with <code class="computeroutput"><span class="identifier">numeric_cast</span></code>,
+        the user should define a <code class="computeroutput"><span class="identifier">numeric_cast_traits</span></code>
+        specialization on the UDT for each conversion. Here is an example of specializations
+        for converting between the UDT and any other type:
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Source</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">numeric_cast_traits</span><span class="special">&lt;</span><span class="identifier">UDT</span><span class="special">,</span> <span class="identifier">Source</span><span class="special">&gt;</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="identifier">UDT</span><span class="special">,</span> <span class="identifier">Source</span><span class="special">&gt;</span>      <span class="identifier">conv_traits</span><span class="special">;</span>
+
+    <span class="comment">//! The following are required:</span>
+    <span class="keyword">typedef</span> <span class="identifier">YourOverflowHandlerPolicy</span>           <span class="identifier">overflow_policy</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">YourRangeCheckerPolicy</span><span class="special">&lt;</span><span class="identifier">conv_traits</span><span class="special">&gt;</span> <span class="identifier">range_checking_policy</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">YourFloat2IntRounderPolicy</span><span class="special">&lt;</span><span class="identifier">Source</span><span class="special">&gt;</span>  <span class="identifier">rounding_policy</span><span class="special">;</span>
+<span class="special">};</span>
+<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Target</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">numeric_cast_traits</span><span class="special">&lt;</span><span class="identifier">Target</span><span class="special">,</span> <span class="identifier">UDT</span><span class="special">&gt;</span>
+<span class="special">{</span>
+    <span class="keyword">typedef</span> <span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="identifier">Target</span><span class="special">,</span> <span class="identifier">UDT</span><span class="special">&gt;</span>      <span class="identifier">conv_traits</span><span class="special">;</span>
+
+    <span class="comment">//! The following are required:</span>
+    <span class="keyword">typedef</span> <span class="identifier">YourOverflowHandlerPolicy</span>           <span class="identifier">overflow_policy</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">YourRangeCheckerPolicy</span><span class="special">&lt;</span><span class="identifier">conv_traits</span><span class="special">&gt;</span> <span class="identifier">range_checking_policy</span><span class="special">;</span>
+    <span class="keyword">typedef</span> <span class="identifier">YourFloat2IntRounderPolicy</span><span class="special">&lt;</span><span class="identifier">UDT</span><span class="special">&gt;</span>     <span class="identifier">rounding_policy</span><span class="special">;</span>
+<span class="special">};</span>
+<span class="special">}}//</span><span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">;</span>
+</pre>
+<p>
+        These specializations are already defined with default values for the built-in
+        numeric types. It is possible to disable the generation of specializations
+        for built-in types by defining <code class="computeroutput"><span class="identifier">BOOST_NUMERIC_CONVERSION_RELAX_BUILT_IN_CAST_TRAITS</span></code>.
+        For details on defining custom policies see <a class="link" href="numeric_converter_policy_classes.html" title="Numeric Converter Policy Classes">Converter
+        Policies</a>.
+      </p>
+<p>
+        Here is a full example of how to define a custom UDT for use with <code class="computeroutput"><span class="identifier">numeric_cast</span></code>:
+      </p>
+<pre class="programlisting"><span class="comment">//! Define a simple custom number</span>
+<span class="keyword">struct</span> <span class="identifier">Double</span>
+    <span class="special">:</span>   <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators</span>
+        <span class="special">&lt;</span>
+            <span class="identifier">Double</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">long</span> <span class="keyword">double</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">double</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">float</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">int</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">long</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">long</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">long</span> <span class="keyword">long</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">char</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">char</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">short</span>
+          <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ordered_field_operators2</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">short</span>
+        <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
+<span class="special">{</span>
+    <span class="identifier">Double</span><span class="special">()</span>
+        <span class="special">:</span> <span class="identifier">v</span><span class="special">(</span><span class="number">0</span><span class="special">)</span>
+    <span class="special">{}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">explicit</span> <span class="identifier">Double</span><span class="special">(</span> <span class="identifier">T</span> <span class="identifier">v</span> <span class="special">)</span>
+        <span class="special">:</span> <span class="identifier">v</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">v</span><span class="special">))</span>
+    <span class="special">{}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">T</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">=</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&lt;</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">&lt;</span> <span class="identifier">rhs</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&lt;</span> <span class="special">(</span> <span class="identifier">T</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">&lt;</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">rhs</span><span class="special">);</span>
+    <span class="special">}</span>
+
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&gt;</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">&gt;</span> <span class="identifier">rhs</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&gt;</span> <span class="special">(</span> <span class="identifier">T</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">&gt;</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">rhs</span><span class="special">);</span>
+    <span class="special">}</span>
+
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">==(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">==</span> <span class="identifier">rhs</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">==</span> <span class="special">(</span> <span class="identifier">T</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">==</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">rhs</span><span class="special">);</span>
+    <span class="special">}</span>
+
+    <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">!()</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">v</span> <span class="special">==</span> <span class="number">0</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="identifier">Double</span> <span class="keyword">operator</span> <span class="special">-()</span> <span class="keyword">const</span>
+    <span class="special">{</span>
+        <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(-</span><span class="identifier">v</span><span class="special">);</span>
+    <span class="special">}</span>
+
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">+=(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">+=</span> <span class="identifier">t</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">+=(</span> <span class="identifier">T</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">+=</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">-=(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">-=</span> <span class="identifier">t</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">-=(</span> <span class="identifier">T</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">-=</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">*=</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">factor</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">*=</span> <span class="identifier">factor</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">*=(</span> <span class="identifier">T</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">*=</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">/=</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">divisor</span><span class="special">)</span>
+    <span class="special">{</span>
+        <span class="identifier">v</span> <span class="special">/=</span> <span class="identifier">divisor</span><span class="special">.</span><span class="identifier">v</span><span class="special">;</span>
+        <span class="keyword">return</span> <span class="special">*</span><span class="keyword">this</span><span class="special">;</span>
+    <span class="special">}</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="identifier">Double</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">/=(</span> <span class="identifier">T</span> <span class="identifier">t</span> <span class="special">)</span>
+    <span class="special">{</span>
+         <span class="identifier">v</span> <span class="special">/=</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
+        <span class="keyword">return</span> <span class="special">(*</span><span class="keyword">this</span><span class="special">);</span>
+    <span class="special">}</span>
+
+    <span class="keyword">double</span> <span class="identifier">v</span><span class="special">;</span>
+<span class="special">};</span>
+
+<span class="comment">//! Define numeric_limits for the custom type.</span>
+<span class="keyword">namespace</span> <span class="identifier">std</span>
+<span class="special">{</span>
+    <span class="keyword">template</span><span class="special">&lt;&gt;</span>
+    <span class="keyword">class</span> <span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">Double</span><span class="special">&gt;</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;</span>
+    <span class="special">{</span>
+    <span class="keyword">public</span><span class="special">:</span>
+
+        <span class="comment">//! Limit our Double to a range of +/- 100.0</span>
+        <span class="keyword">static</span> <span class="identifier">Double</span> <span class="special">(</span><span class="identifier">min</span><span class="special">)()</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(</span><span class="number">1.e-2</span><span class="special">);</span>
+        <span class="special">}</span>
+
+        <span class="keyword">static</span> <span class="identifier">Double</span> <span class="special">(</span><span class="identifier">max</span><span class="special">)()</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(</span><span class="number">1.e2</span><span class="special">);</span>
+        <span class="special">}</span>
+
+        <span class="keyword">static</span> <span class="identifier">Double</span> <span class="identifier">epsilon</span><span class="special">()</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;::</span><span class="identifier">epsilon</span><span class="special">()</span> <span class="special">);</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+<span class="special">}</span>
+
+<span class="comment">//! Define range checking and overflow policies.</span>
+<span class="keyword">namespace</span> <span class="identifier">custom</span>
+<span class="special">{</span>
+    <span class="comment">//! Define a custom range checker</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">OverFlowHandler</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">range_checker</span>
+    <span class="special">{</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">argument_type</span> <span class="identifier">argument_type</span> <span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">source_type</span> <span class="identifier">S</span><span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Traits</span><span class="special">::</span><span class="identifier">target_type</span> <span class="identifier">T</span><span class="special">;</span>
+
+        <span class="comment">//! Check range of integral types.</span>
+        <span class="keyword">static</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">range_check_result</span> <span class="identifier">out_of_range</span><span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">;</span>
+            <span class="keyword">if</span><span class="special">(</span> <span class="identifier">s</span> <span class="special">&gt;</span> <span class="identifier">bounds</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">highest</span><span class="special">()</span> <span class="special">)</span>
+                <span class="keyword">return</span> <span class="identifier">cPosOverflow</span><span class="special">;</span>
+            <span class="keyword">else</span> <span class="keyword">if</span><span class="special">(</span> <span class="identifier">s</span> <span class="special">&lt;</span> <span class="identifier">bounds</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">lowest</span><span class="special">()</span> <span class="special">)</span>
+                <span class="keyword">return</span> <span class="identifier">cNegOverflow</span><span class="special">;</span>
+            <span class="keyword">else</span>
+                <span class="keyword">return</span> <span class="identifier">cInRange</span><span class="special">;</span>
+        <span class="special">}</span>
+
+        <span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">validate_range</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="identifier">BOOST_STATIC_ASSERT</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">is_bounded</span> <span class="special">);</span>
+            <span class="identifier">OverFlowHandler</span><span class="special">()(</span> <span class="identifier">out_of_range</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span> <span class="special">);</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+
+    <span class="comment">//! Overflow handler</span>
+    <span class="keyword">struct</span> <span class="identifier">positive_overflow</span><span class="special">{};</span>
+    <span class="keyword">struct</span> <span class="identifier">negative_overflow</span><span class="special">{};</span>
+
+    <span class="keyword">struct</span> <span class="identifier">overflow_handler</span>
+    <span class="special">{</span>
+        <span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()</span> <span class="special">(</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">range_check_result</span> <span class="identifier">r</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">;</span>
+            <span class="keyword">if</span><span class="special">(</span> <span class="identifier">r</span> <span class="special">==</span> <span class="identifier">cNegOverflow</span> <span class="special">)</span>
+                <span class="keyword">throw</span> <span class="identifier">negative_overflow</span><span class="special">()</span> <span class="special">;</span>
+            <span class="keyword">else</span> <span class="keyword">if</span><span class="special">(</span> <span class="identifier">r</span> <span class="special">==</span> <span class="identifier">cPosOverflow</span> <span class="special">)</span>
+                <span class="keyword">throw</span> <span class="identifier">positive_overflow</span><span class="special">()</span> <span class="special">;</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+
+    <span class="comment">//! Define a rounding policy and specialize on the custom type.</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Ceil</span> <span class="special">:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">Ceil</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">&gt;{};</span>
+
+    <span class="keyword">template</span><span class="special">&lt;&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Ceil</span><span class="special">&lt;</span><span class="identifier">Double</span><span class="special">&gt;</span>
+    <span class="special">{</span>
+      <span class="keyword">typedef</span> <span class="identifier">Double</span> <span class="identifier">source_type</span><span class="special">;</span>
+
+      <span class="keyword">typedef</span> <span class="identifier">Double</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">argument_type</span><span class="special">;</span>
+
+      <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+      <span class="special">{</span>
+<span class="preprocessor">#if</span> <span class="special">!</span><span class="identifier">defined</span><span class="special">(</span><span class="identifier">BOOST_NO_STDC_NAMESPACE</span><span class="special">)</span>
+          <span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ceil</span> <span class="special">;</span>
+<span class="preprocessor">#endif</span>
+          <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(</span> <span class="identifier">ceil</span><span class="special">(</span><span class="identifier">s</span><span class="special">.</span><span class="identifier">v</span><span class="special">)</span> <span class="special">);</span>
+      <span class="special">}</span>
+
+      <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">round_toward_infinity</span><span class="special">&gt;</span> <span class="identifier">round_style</span><span class="special">;</span>
+    <span class="special">};</span>
+
+    <span class="comment">//! Define a rounding policy and specialize on the custom type.</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Trunc</span><span class="special">:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">Trunc</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">&gt;{};</span>
+
+    <span class="keyword">template</span><span class="special">&lt;&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">Trunc</span><span class="special">&lt;</span><span class="identifier">Double</span><span class="special">&gt;</span>
+    <span class="special">{</span>
+      <span class="keyword">typedef</span> <span class="identifier">Double</span> <span class="identifier">source_type</span><span class="special">;</span>
+
+      <span class="keyword">typedef</span> <span class="identifier">Double</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">argument_type</span><span class="special">;</span>
+
+      <span class="keyword">static</span> <span class="identifier">source_type</span> <span class="identifier">nearbyint</span> <span class="special">(</span> <span class="identifier">argument_type</span> <span class="identifier">s</span> <span class="special">)</span>
+      <span class="special">{</span>
+<span class="preprocessor">#if</span> <span class="special">!</span><span class="identifier">defined</span><span class="special">(</span><span class="identifier">BOOST_NO_STDC_NAMESPACE</span><span class="special">)</span>
+          <span class="keyword">using</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">floor</span><span class="special">;</span>
+<span class="preprocessor">#endif</span>
+          <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(</span> <span class="identifier">floor</span><span class="special">(</span><span class="identifier">s</span><span class="special">.</span><span class="identifier">v</span><span class="special">)</span> <span class="special">);</span>
+      <span class="special">}</span>
+
+      <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">integral_c</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">float_round_style</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">round_toward_zero</span><span class="special">&gt;</span> <span class="identifier">round_style</span><span class="special">;</span>
+    <span class="special">};</span>
+<span class="special">}//</span><span class="keyword">namespace</span> <span class="identifier">custom</span><span class="special">;</span>
+
+<span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
+
+    <span class="comment">//! Define the numeric_cast_traits specializations on the custom type.</span>
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">numeric_cast_traits</span><span class="special">&lt;</span><span class="identifier">Double</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="special">{</span>
+        <span class="keyword">typedef</span> <span class="identifier">custom</span><span class="special">::</span><span class="identifier">overflow_handler</span>                         <span class="identifier">overflow_policy</span><span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="identifier">custom</span><span class="special">::</span><span class="identifier">range_checker</span>
+                <span class="special">&lt;</span>
+                    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="identifier">Double</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;</span>
+                  <span class="special">,</span> <span class="identifier">overflow_policy</span>
+                <span class="special">&gt;</span>                                                <span class="identifier">range_checking_policy</span><span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">Trunc</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">&gt;</span>                         <span class="identifier">rounding_policy</span><span class="special">;</span>
+    <span class="special">};</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">numeric_cast_traits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">Double</span><span class="special">&gt;</span>
+    <span class="special">{</span>
+        <span class="keyword">typedef</span> <span class="identifier">custom</span><span class="special">::</span><span class="identifier">overflow_handler</span>                         <span class="identifier">overflow_policy</span><span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="identifier">custom</span><span class="special">::</span><span class="identifier">range_checker</span>
+                <span class="special">&lt;</span>
+                    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">::</span><span class="identifier">conversion_traits</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">Double</span><span class="special">&gt;</span>
+                  <span class="special">,</span> <span class="identifier">overflow_policy</span>
+                <span class="special">&gt;</span>                                                <span class="identifier">range_checking_policy</span><span class="special">;</span>
+        <span class="keyword">typedef</span> <span class="identifier">custom</span><span class="special">::</span><span class="identifier">Trunc</span><span class="special">&lt;</span><span class="identifier">Double</span><span class="special">&gt;</span>                            <span class="identifier">rounding_policy</span><span class="special">;</span>
+    <span class="special">};</span>
+
+    <span class="comment">//! Define the conversion from the custom type to built-in types and vice-versa.</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">raw_converter</span><span class="special">&lt;</span> <span class="identifier">conversion_traits</span><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">Double</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
+    <span class="special">{</span>
+        <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">low_level_convert</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">Double</span><span class="special">&amp;</span> <span class="identifier">n</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;(</span> <span class="identifier">n</span><span class="special">.</span><span class="identifier">v</span> <span class="special">);</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">S</span><span class="special">&gt;</span>
+    <span class="keyword">struct</span> <span class="identifier">raw_converter</span><span class="special">&lt;</span> <span class="identifier">conversion_traits</span><span class="special">&lt;</span> <span class="identifier">Double</span><span class="special">,</span> <span class="identifier">S</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
+    <span class="special">{</span>
+        <span class="keyword">static</span> <span class="identifier">Double</span> <span class="identifier">low_level_convert</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">S</span><span class="special">&amp;</span> <span class="identifier">n</span> <span class="special">)</span>
+        <span class="special">{</span>
+            <span class="keyword">return</span> <span class="identifier">Double</span><span class="special">(</span><span class="identifier">n</span><span class="special">);</span>
+        <span class="special">}</span>
+    <span class="special">};</span>
+<span class="special">}}//</span><span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">numeric</span><span class="special">;</span>
+</pre>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="converter___function_object.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="bounds___traits_class.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/boostbook.css

@@ -0,0 +1,582 @@
+/*=============================================================================
+    Copyright (c) 2004 Joel de Guzman
+    http://spirit.sourceforge.net/
+
+    Use, modification and distribution is subject to the Boost Software
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+    http://www.boost.org/LICENSE_1_0.txt)
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externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/index.html

@@ -0,0 +1,181 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>Chapter&#160;1.&#160;Boost.NumericConversion</title>
+<link rel="stylesheet" href="boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
+<link rel="home" href="index.html" title="Chapter&#160;1.&#160;Boost.NumericConversion">
+<link rel="next" href="boost_numericconversion/definitions.html" title="Definitions">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<table cellpadding="2" width="100%"><tr>
+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
+<td align="center"><a href="../../../../../index.html">Home</a></td>
+<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
+<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="../../../../../more/index.htm">More</a></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"><a accesskey="n" href="boost_numericconversion/definitions.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a></div>
+<div class="chapter">
+<div class="titlepage"><div>
+<div><h2 class="title">
+<a name="numeric_conversion"></a>Chapter&#160;1.&#160;Boost.NumericConversion</h2></div>
+<div><div class="author"><h3 class="author">
+<span class="firstname">Fernando Luis</span> <span class="surname">Cacciola Carballal</span>
+</h3></div></div>
+<div><p class="copyright">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal</p></div>
+<div><div class="legalnotice">
+<a name="numeric_conversion.legal"></a><p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></div>
+</div></div>
+<div class="toc">
+<p><b>Table of Contents</b></p>
+<dl class="toc">
+<dt><span class="section"><a href="index.html#numeric_conversion.overview">Overview</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html">Definitions</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.introduction">Introduction</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.types_and_values">Types
+      and Values</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.c___arithmetic_types">C++
+      Arithmetic Types</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.numeric_types">Numeric
+      Types</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.range_and_precision">Range
+      and Precision</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.exact__correctly_rounded_and_out_of_range_representations">Exact,
+      Correctly Rounded and Out-Of-Range Representations</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.standard__numeric__conversions">Standard
+      (numeric) Conversions</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.subranged_conversion_direction__subtype_and_supertype">Subranged
+      Conversion Direction, Subtype and Supertype</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="boost_numericconversion/converter___function_object.html">converter&lt;&gt;
+    function object</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/converter___function_object.html#boost_numericconversion.converter___function_object.synopsis">Synopsis</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/converter___function_object.html#boost_numericconversion.converter___function_object.template_parameters">Template
+      parameters</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/converter___function_object.html#boost_numericconversion.converter___function_object.member_functions">Member
+      functions</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/converter___function_object.html#boost_numericconversion.converter___function_object.range_checking_logic">Range
+      Checking Logic</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/converter___function_object.html#boost_numericconversion.converter___function_object.examples">Examples</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="boost_numericconversion/type_requirements_and_user_defined_types_support.html">Type
+    Requirements and User-defined-types support</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.type_requirements">Type
+      Requirements</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udt_s_special_semantics">UDT's
+      special semantics</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.special_policies">Special
+      Policies</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/type_requirements_and_user_defined_types_support.html#boost_numericconversion.type_requirements_and_user_defined_types_support.udts_with_numeric_cast">UDTs
+      with numeric_cast</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="boost_numericconversion/bounds___traits_class.html">bounds&lt;&gt;
+    traits class</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/bounds___traits_class.html#boost_numericconversion.bounds___traits_class.introduction">Introduction</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/bounds___traits_class.html#boost_numericconversion.bounds___traits_class.traits_class_bounds_n_">traits
+      class bounds&lt;N&gt;</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/bounds___traits_class.html#boost_numericconversion.bounds___traits_class.examples">Examples</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="boost_numericconversion/conversion_traits___traits_class.html">conversion_traits&lt;&gt;
+    traits class</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.types">Types</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/conversion_traits___traits_class.html#boost_numericconversion.conversion_traits___traits_class.examples">Examples</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="boost_numericconversion/numeric_converter_policy_classes.html">Numeric
+    Converter Policy Classes</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.enum_range_check_result">enum
+      range_check_result</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler">Policy
+      OverflowHandler</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder">Policy
+      Float2IntRounder</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter">Policy
+      RawConverter</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker">Policy
+      UserRangeChecker</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="boost_numericconversion/improved_numeric_cast__.html">Improved
+    numeric_cast&lt;&gt;</a></span></dt>
+<dd><dl>
+<dt><span class="section"><a href="boost_numericconversion/improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.introduction">Introduction</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast">numeric_cast</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.numeric_cast_traits">numeric_cast_traits</a></span></dt>
+<dt><span class="section"><a href="boost_numericconversion/improved_numeric_cast__.html#boost_numericconversion.improved_numeric_cast__.examples">Examples</a></span></dt>
+</dl></dd>
+<dt><span class="section"><a href="numeric_conversion/history_and_acknowledgments.html">History
+    and Acknowledgments</a></span></dt>
+<dt><span class="section"><a href="numeric_conversion/bibliography.html">Bibliography</a></span></dt>
+</dl>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="numeric_conversion.overview"></a><a class="link" href="index.html#numeric_conversion.overview" title="Overview">Overview</a>
+</h2></div></div></div>
+<p>
+      The Boost Numeric Conversion library is a collection of tools to describe and
+      perform conversions between values of different <a class="link" href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.numeric_types" title="Numeric Types">numeric
+      types</a>.
+    </p>
+<p>
+      The library includes a special alternative for a subset of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;&gt;</span></code>, the <a class="link" href="boost_numericconversion/bounds___traits_class.html" title="bounds&lt;&gt; traits class">bounds&lt;&gt;</a>
+      traits class, which provides a consistent way to obtain the <a class="link" href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">boundary</a>
+      values for the <a class="link" href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.range_and_precision" title="Range and Precision">range</a>
+      of a numeric type.
+    </p>
+<p>
+      It also includes a set of <a class="link" href="boost_numericconversion/conversion_traits___traits_class.html" title="conversion_traits&lt;&gt; traits class">trait
+      classes</a> which describes the compile-time properties of a conversion
+      from a source to a target numeric type. Both <a class="link" href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.c___arithmetic_types" title="C++ Arithmetic Types">arithmetic</a>
+      and <a class="link" href="boost_numericconversion/definitions.html#boost_numericconversion.definitions.numeric_types" title="Numeric Types">user-defined
+      numeric types</a> can be used.
+    </p>
+<p>
+      A policy-based <a class="link" href="boost_numericconversion/converter___function_object.html" title="converter&lt;&gt; function object">converter</a>
+      object which uses <code class="computeroutput"><span class="identifier">conversion_traits</span></code>
+      to select an optimized implementation is supplied. Such implementation uses
+      an optimal range checking code suitable for the source/target combination.
+    </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+          The converter's out-of-range behavior can be customized via an <a class="link" href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_overflowhandler" title="Policy OverflowHandler">OverflowHandler</a>
+          policy.
+        </li>
+<li class="listitem">
+          For floating-point to integral conversions, the rounding mode can be selected
+          via the <a class="link" href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_float2introunder" title="Policy Float2IntRounder">Float2IntRounder</a>
+          policy.
+        </li>
+<li class="listitem">
+          A custom low-level conversion routine (for UDTs for instance) can be passed
+          via a <a class="link" href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter" title="Policy RawConverter">RawConverter</a>
+          policy.
+        </li>
+<li class="listitem">
+          The optimized automatic range-checking logic can be overridden via a <a class="link" href="boost_numericconversion/numeric_converter_policy_classes.html#boost_numericconversion.numeric_converter_policy_classes.policy_userrangechecker" title="Policy UserRangeChecker">UserRangeChecker</a>
+          policy.
+        </li>
+</ul></div>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"><p><small>Last revised: June 02, 2014 at 09:10:01 GMT</small></p></td>
+<td align="right"><div class="copyright-footer"></div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"><a accesskey="n" href="boost_numericconversion/definitions.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a></div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/numeric_conversion/bibliography.html

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+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>Bibliography</title>
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+<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
+<link rel="home" href="../index.html" title="Chapter&#160;1.&#160;Boost.NumericConversion">
+<link rel="up" href="../index.html" title="Chapter&#160;1.&#160;Boost.NumericConversion">
+<link rel="prev" href="history_and_acknowledgments.html" title="History and Acknowledgments">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<table cellpadding="2" width="100%"><tr>
+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td>
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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="numeric_conversion.bibliography"></a><a class="link" href="bibliography.html" title="Bibliography">Bibliography</a>
+</h2></div></div></div>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+          Standard Documents:
+          <div class="orderedlist"><ol class="orderedlist" type="1">
+<li class="listitem">
+                ISO/IEC 14882:98 (C++98 Standard)
+              </li>
+<li class="listitem">
+                ISO/IEC 9899:1999 (C99 Standard)
+              </li>
+<li class="listitem">
+                ISO/IEC 10967-1 (Language Independent Arithmetic (LIA), Part I, 1994)
+              </li>
+<li class="listitem">
+                ISO/IEC 2382-1:1993 (Information Technology - Vocabulary - Part I:
+                Fundamental Terms)
+              </li>
+<li class="listitem">
+                ANSI/IEEE 754-1985 [and IEC 60559:1989] (Binary floating-point)
+              </li>
+<li class="listitem">
+                ANSI/IEEE 854-1988 (Radix Independent floating-point)
+              </li>
+<li class="listitem">
+                ANSI X3/TR-1-82 (Dictionary for Information Processing Systems)
+              </li>
+<li class="listitem">
+                ISO/IEC JTC1/SC22/WG14/N753 C9X Revision Proposal: LIA-1 Binding:
+                Rationale
+              </li>
+</ol></div>
+        </li>
+<li class="listitem">
+          Papers:
+          <div class="orderedlist"><ol class="orderedlist" type="1">
+<li class="listitem">
+                David Goldberg What Every Computer Scientist Should Know About Floating-Point
+                Arithmetic
+              </li>
+<li class="listitem">
+                Prof. William Kahan papers on floating-point.
+              </li>
+</ol></div>
+        </li>
+</ul></div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="history_and_acknowledgments.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a>
+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/html/numeric_conversion/history_and_acknowledgments.html

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+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>History and Acknowledgments</title>
+<link rel="stylesheet" href="../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
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+<link rel="prev" href="../boost_numericconversion/improved_numeric_cast__.html" title="Improved numeric_cast&lt;&gt;">
+<link rel="next" href="bibliography.html" title="Bibliography">
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+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td>
+<td align="center"><a href="../../../../../../index.html">Home</a></td>
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+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="../../../../../../more/index.htm">More</a></td>
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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="numeric_conversion.history_and_acknowledgments"></a><a class="link" href="history_and_acknowledgments.html" title="History and Acknowledgments">History
+    and Acknowledgments</a>
+</h2></div></div></div>
+<h4>
+<a name="numeric_conversion.history_and_acknowledgments.h0"></a>
+      <span class="phrase"><a name="numeric_conversion.history_and_acknowledgments.pre_formal_review"></a></span><a class="link" href="history_and_acknowledgments.html#numeric_conversion.history_and_acknowledgments.pre_formal_review">Pre-formal
+      review</a>
+    </h4>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+          Kevlin Henney, with help from David Abrahams and Beman Dawes, originally
+          contributed the previous version of <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code> which already presented the idea
+          of a runtime range check.
+        </li>
+<li class="listitem">
+          Later, Eric Ford, Kevin Lynch and the author spotted some genericity problems
+          with that <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code> which prevented it from being used
+          in a generic layer of math functions.
+        </li>
+<li class="listitem">
+          An improved <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code> which properly handled all combinations
+          of arithmetic types was presented.
+        </li>
+<li class="listitem">
+          David Abrahams and Beman Dawes acknowledged the need of an improved version
+          of <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code>
+          and supported the submission as originally laid out. Daryl Walker and Darin
+          Adler made some important comments and proposed fixes to the original submission.
+        </li>
+<li class="listitem">
+          Special thanks go to Bj&#246;rn Karlsoon who helped the author considerably.
+          Having found the problems with <code class="computeroutput"><span class="identifier">numeric_cast</span><span class="special">&lt;&gt;</span></code> himself, he revised very carefully
+          the original submission and spot a subtle bug in the range checking implementation.
+          He also wrote part of this documentation and proof-read and corrected other
+          parts. And most importantly: the features now presented here in this library
+          evolved from the original submission as a result of the useful private
+          communications between Bj&#246;rn and the author.
+        </li>
+</ul></div>
+<h4>
+<a name="numeric_conversion.history_and_acknowledgments.h1"></a>
+      <span class="phrase"><a name="numeric_conversion.history_and_acknowledgments.post_formal_review"></a></span><a class="link" href="history_and_acknowledgments.html#numeric_conversion.history_and_acknowledgments.post_formal_review">Post-formal
+      review</a>
+    </h4>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+          Guillaume Melquiond spoted some documentation and code issues, particularly
+          about rounding conversions.
+        </li>
+<li class="listitem">
+          The following people contributed an important review of the design, documentation
+          and c ode: Kevin Lynch, Thorsten Ottosen, Paul Bristow, Daryle Walker,
+          Jhon Torjo, Eric Ford, Gennadiy Rozental.
+        </li>
+</ul></div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2004-2007 Fernando
+      Luis Cacciola Carballal<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="../boost_numericconversion/improved_numeric_cast__.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="bibliography.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/numeric_cast.qbk

@@ -0,0 +1,153 @@
+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+[section  Improved numeric_cast<>]
+
+[section Introduction]
+
+The lack of preservation of range makes conversions between numeric types
+error prone. This is true for both implicit conversions and explicit
+conversions (through `static_cast`).
+[link boost_numericconversion.improved_numeric_cast__.numeric_cast `numeric_cast`]
+detects loss of range when a numeric type is converted, and throws an
+exception if the range cannot be preserved.
+
+There are several situations where conversions are unsafe:
+
+* Conversions from an integral type with a wider range than the target integral type.
+* Conversions from unsigned to signed (and vice versa) integral types.
+* Conversions from floating point types to integral types.
+
+The C++ Standard does not specify the behavior when a numeric type is
+assigned a value that cannot be represented by the type, except for unsigned
+integral types \[3.9.1.4\], which must obey the laws of arithmetic modulo 2n
+(this implies that the result will be reduced modulo the number that is one
+greater than the largest value that can be represented). The fact that the
+behavior for overflow is undefined for all conversions (except the
+aforementioned unsigned to unsigned) makes any code that may produce
+positive or negative overflows exposed to portability issues.
+
+By default `numeric_cast` adheres to the rules for implicit conversions mandated by
+the C++ Standard, such as truncating floating point types when converting
+to integral types. The implementation must guarantee that for a conversion
+to a type that can hold all possible values of the source type, there will
+be no runtime overhead.
+
+[endsect]
+
+[section numeric_cast]
+    
+    template <typename Target, typename Source> inline
+    Target numeric_cast( Source arg )
+    {
+        typedef conversion_traits<Target, Source>   conv_traits;
+        typedef numeric_cast_traits<Target, Source> cast_traits;
+        typedef converter
+            <
+                Target,
+                Source, 
+                conv_traits,
+                typename cast_traits::overflow_policy, 
+                typename cast_traits::rounding_policy, 
+                raw_converter<conv_traits>,
+                typename cast_traits::range_checking_policy
+            > converter;
+        return converter::convert(arg);
+    }
+
+`numeric_cast` returns the result of converting a value of type Source
+to a value of type Target. If out-of-range is detected, an overflow policy
+is executed whose default behavior is to throw an an exception (see 
+[link numeric_conversion_bad_numeric_cast bad_numeric_cast],
+[link numeric_conversion_negative_overflow negative_overflow] and
+[link numeric_conversion_possitive_overflow positive_overflow]
+).
+
+[endsect]
+
+[section numeric_cast_traits]
+
+    template <typename Target, typename Source, typename EnableIf = void>
+    struct numeric_cast_traits
+    {
+        typedef def_overflow_handler    overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<Source>           rounding_policy;
+    };
+
+The behavior of `numeric_cast` may be tailored for custom numeric types through
+the specialization of `numeric_cast_traits`. (see 
+[link boost_numericconversion.type_requirements_and_user_defined_types_support User Defined Types] 
+for details.
+)
+
+[endsect]
+
+[section Examples]
+
+The following example performs some typical conversions between numeric types:
+
+#include <boost/numeric/conversion/cast.hpp>
+#include <iostream>
+
+    int main()
+    {
+        using boost::numeric_cast;
+
+        using boost::numeric::bad_numeric_cast;
+        using boost::numeric::positive_overflow;
+        using boost::numeric::negative_overflow;
+
+        try
+        {
+            int i=42;
+            short s=numeric_cast<short>(i); // This conversion succeeds (is in range)
+        }
+        catch(negative_overflow& e) {
+            std::cout << e.what();
+        }
+        catch(positive_overflow& e) {
+            std::cout << e.what();
+        }
+
+        try
+        {
+            float f=-42.1234;
+
+            // This will cause a boost::numeric::negative_overflow exception to be thrown
+            unsigned int i=numeric_cast<unsigned int>(f);
+        }
+        catch(bad_numeric_cast& e) {
+            std::cout << e.what();
+        }
+
+        double d= f + numeric_cast<double>(123); // int -> double
+
+        unsigned long l=std::numeric_limits<unsigned long>::max();
+
+        try
+        {
+            // This will cause a boost::numeric::positive_overflow exception to be thrown
+            // NOTE: *operations* on unsigned integral types cannot cause overflow
+            // but *conversions* to a signed type ARE range checked by numeric_cast.
+
+            unsigned char c=numeric_cast<unsigned char>(l);
+        }
+        catch(positive_overflow& e) {
+            std::cout << e.what();
+        }
+
+
+        return 0;
+    }
+
+[endsect]
+
+[endsect]

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/doc/requirements.qbk

@@ -0,0 +1,448 @@
+[/
+    Boost.Optional
+
+    Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal
+
+    Distributed under the Boost Software License, Version 1.0.
+    (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt)
+]
+
+[section Type Requirements and User-defined-types support]
+
+[section Type Requirements]
+
+Both arithmetic (built-in) and user-defined numeric types require proper
+specialization of `std::numeric_limits<>` (that is, with (in-class) integral
+constants).
+
+The library uses `std::numeric_limits<T>::is_specialized` to detect whether
+the type is builtin or user defined, and `std::numeric_limits<T>::is_integer`,
+`std::numeric_limits<T>::is_signed` to detect whether the type is integer
+or floating point; and whether it is signed/unsigned.
+
+The default `Float2IntRounder` policies uses unqualified calls to functions
+`floor()` and `ceil()`; but the standard functions are introduced in scope
+by a using directive:
+
+    using std::floor ; return floor(s);
+
+Therefore, for builtin arithmetic types, the std functions will be used.
+User defined types should provide overloaded versions of these functions in
+order to use the default rounder policies. If these overloads are defined
+within a user namespace argument dependent lookup (ADL) should find them,
+but if your compiler has a weak ADL you might need to put these functions
+some place else or write your own rounder policy.
+
+The default `Trunc<>` rounder policy needs to determine if the source value
+is positive or not, and for this it evaluates the expression
+`s < static_cast<S>(0)`. Therefore, user defined types require a visible
+`operator<` in order to use the `Trunc<>` policy (the default).
+
+
+[endsect]
+
+[section UDT's special semantics]
+
+[heading Conversion Traits]
+
+If a User Defined Type is involved in a conversion, it is ['assumed] that
+the UDT has [link boost_numericconversion.definitions.range_and_precision wider range] 
+than any built-in type, and consequently the values
+of some `converter_traits<>` members are hardwired regardless of the reality.
+The following table summarizes this:
+
+* `Target=`['UDT] and `Source=`['built-in]
+    * `subranged=false`
+    * `supertype=Target`
+    * `subtype=Source`
+* `Target=`['built-in] and `Source=`['UDT]
+    * `subranged=true`
+    * `supertype=Source`
+    * `subtype=Target`
+
+* `Target=`['UDT] and `Source=`['UDT]
+    * `subranged=false`
+    * `supertype=Target`
+    * `subtype=Source`
+
+
+The `Traits` member `udt_mixture` can be used to detect whether a UDT is involved
+and to infer the validity of the other members as shown above.
+
+[heading Range Checking]
+
+Because User Defined Numeric Types might have peculiar ranges (such as an
+unbounded range), this library does not attempt to supply a meaningful range
+checking logic when UDTs are involved in a conversion. Therefore, if either
+Target or Source are not built-in types, the bundled range checking of the
+`converter<>` function object is automatically disabled. However, it is possible
+to supply a user-defined range-checker. See 
+[link boost_numericconversion.type_requirements_and_user_defined_types_support.special_policies Special Policies]
+
+[endsect]
+
+[section Special Policies]
+
+There are two components of the `converter<>` class that might require special
+behavior if User Defined Numeric Types are involved: the Range Checking and the
+Raw Conversion.
+
+When both Target and Source are built-in types, the converter class uses an internal
+range checking logic which is optimized and customized for the combined properties
+of the types.
+
+However, this internal logic is disabled when either type is User Defined.
+In this case, the user can specify an ['external] range checking policy which will be
+used in place of the internal code. See
+[link boost_numericconversion.type_requirements_and_user_defined_types_support.udts_with_numeric_cast numeric_cast_traits]
+for details on using UDTs with `numeric_cast`.
+
+The converter class performs the actual conversion using a Raw Converter policy.
+The default raw converter simply performs a `static_cast<Target>(source)`.
+
+However, if the a UDT is involved, the `static_cast` might not work. In this case,
+the user can implement and pass a different raw converter policy.
+See [link boost_numericconversion.numeric_converter_policy_classes.policy_rawconverter RawConverter] policy for details.
+
+[endsect]
+
+[section UDTs with numeric_cast]
+
+In order to employ UDTs with `numeric_cast`, the user should define
+a `numeric_cast_traits` specialization on the UDT for each conversion.
+Here is an example of specializations for converting between the UDT
+and any other type:
+
+    namespace boost { namespace numeric {
+    template <typename Source>
+    struct numeric_cast_traits<UDT, Source>
+    {
+        typedef conversion_traits<UDT, Source>      conv_traits;
+        
+        //! The following are required:
+        typedef YourOverflowHandlerPolicy           overflow_policy;
+        typedef YourRangeCheckerPolicy<conv_traits> range_checking_policy;
+        typedef YourFloat2IntRounderPolicy<Source>  rounding_policy;
+    };
+    template <typename Target>
+    struct numeric_cast_traits<Target, UDT>
+    {
+        typedef conversion_traits<Target, UDT>      conv_traits;
+        
+        //! The following are required:
+        typedef YourOverflowHandlerPolicy           overflow_policy;
+        typedef YourRangeCheckerPolicy<conv_traits> range_checking_policy;
+        typedef YourFloat2IntRounderPolicy<UDT>     rounding_policy;
+    };
+    }}//namespace boost::numeric;
+
+These specializations are already defined with default values for the built-in
+numeric types. It is possible to disable the generation of specializations for
+built-in types by defining `BOOST_NUMERIC_CONVERSION_RELAX_BUILT_IN_CAST_TRAITS`.
+For details on defining custom policies see [link boost_numericconversion.numeric_converter_policy_classes Converter Policies].
+
+Here is a full example of how to define a custom UDT for use with `numeric_cast`:
+
+    //! Define a simple custom number
+    struct Double
+        :   boost::ordered_field_operators
+            <
+                Double
+              , boost::ordered_field_operators2< Double, long double
+              , boost::ordered_field_operators2< Double, double
+              , boost::ordered_field_operators2< Double, float
+              , boost::ordered_field_operators2< Double, int
+              , boost::ordered_field_operators2< Double, unsigned int
+              , boost::ordered_field_operators2< Double, long
+              , boost::ordered_field_operators2< Double, unsigned long
+              , boost::ordered_field_operators2< Double, long long
+              , boost::ordered_field_operators2< Double, unsigned long long
+              , boost::ordered_field_operators2< Double, char
+              , boost::ordered_field_operators2< Double, unsigned char
+              , boost::ordered_field_operators2< Double, short
+              , boost::ordered_field_operators2< Double, unsigned short
+            > > > > > > > > > > > > > >
+    {
+        Double()
+            : v(0)
+        {}
+
+        template <typename T>
+        explicit Double( T v )
+            : v(static_cast<double>(v))
+        {}
+
+        template <typename T>
+        Double& operator= ( T t )
+        {
+            v = static_cast<double>(t);
+            return *this;
+        }
+
+        bool operator < ( const Double& rhs ) const
+        {
+            return v < rhs.v;
+        }
+
+        template <typename T>
+        bool operator < ( T rhs ) const
+        {
+            return v < static_cast<double>(rhs);
+        }
+
+        bool operator > ( const Double& rhs ) const
+        {
+            return v > rhs.v;
+        }
+    
+        template <typename T>
+        bool operator > ( T rhs ) const
+        {
+            return v > static_cast<double>(rhs);
+        }
+    
+        bool operator ==( const Double& rhs ) const
+        {
+            return v == rhs.v;
+        }
+    
+        template <typename T>
+        bool operator == ( T rhs ) const
+        {
+            return v == static_cast<double>(rhs);
+        }
+    
+        bool operator !() const
+        {
+            return v == 0; 
+        }
+    
+        Double operator -() const
+        {
+            return Double(-v);
+        }
+    
+        Double& operator +=( const Double& t )
+        {
+            v += t.v;
+            return *this;
+        }
+    
+        template <typename T>
+        Double& operator +=( T t )
+        {
+            v += static_cast<double>(t);
+            return *this;
+        }
+    
+        Double& operator -=( const Double& t )
+        {
+            v -= t.v;
+            return *this;
+        }
+    
+        template <typename T>
+        Double& operator -=( T t )
+        {
+            v -= static_cast<double>(t);
+            return *this;
+        }
+    
+        Double& operator *= ( const Double& factor )
+        {
+            v *= factor.v;
+            return *this;
+        }
+    
+        template <typename T>
+        Double& operator *=( T t )
+        {
+            v *= static_cast<double>(t);
+            return *this;
+        }
+
+        Double& operator /= (const Double& divisor)
+        {
+            v /= divisor.v;
+            return *this;
+        }
+    
+        template <typename T>
+        Double& operator /=( T t )
+        {
+             v /= static_cast<double>(t);
+            return (*this);       
+        }
+    
+        double v;
+    };
+
+    //! Define numeric_limits for the custom type.
+    namespace std
+    {
+        template<>
+        class numeric_limits<Double> : public numeric_limits<double>
+        {
+        public:
+
+            //! Limit our Double to a range of +/- 100.0
+            static Double (min)()
+            {            
+                return Double(1.e-2);
+            }
+
+            static Double (max)()
+            {
+                return Double(1.e2);
+            }
+
+            static Double epsilon()
+            {
+                return Double( std::numeric_limits<double>::epsilon() );
+            }
+        };
+    }
+
+    //! Define range checking and overflow policies.
+    namespace custom
+    {
+        //! Define a custom range checker
+        template<typename Traits, typename OverFlowHandler>
+        struct range_checker
+        {
+            typedef typename Traits::argument_type argument_type ;
+            typedef typename Traits::source_type S;
+            typedef typename Traits::target_type T;
+        
+            //! Check range of integral types.
+            static boost::numeric::range_check_result out_of_range( argument_type s )
+            {
+                using namespace boost::numeric;
+                if( s > bounds<T>::highest() )
+                    return cPosOverflow;
+                else if( s < bounds<T>::lowest() )
+                    return cNegOverflow;
+                else
+                    return cInRange;
+            }
+
+            static void validate_range ( argument_type s )
+            {
+                BOOST_STATIC_ASSERT( std::numeric_limits<T>::is_bounded );
+                OverFlowHandler()( out_of_range(s) );
+            }
+        };
+
+        //! Overflow handler
+        struct positive_overflow{};
+        struct negative_overflow{};
+
+        struct overflow_handler
+        {
+            void operator() ( boost::numeric::range_check_result r )
+            {
+                using namespace boost::numeric;
+                if( r == cNegOverflow )
+                    throw negative_overflow() ;
+                else if( r == cPosOverflow )
+                    throw positive_overflow() ;
+            }
+        };
+
+        //! Define a rounding policy and specialize on the custom type.
+        template<class S>
+        struct Ceil : boost::numeric::Ceil<S>{};
+
+        template<>
+        struct Ceil<Double>
+        {
+          typedef Double source_type;
+
+          typedef Double const& argument_type;
+
+          static source_type nearbyint ( argument_type s )
+          {
+    #if !defined(BOOST_NO_STDC_NAMESPACE)
+              using std::ceil ;
+    #endif
+              return Double( ceil(s.v) );
+          }
+
+          typedef boost::mpl::integral_c< std::float_round_style, std::round_toward_infinity> round_style;
+        };
+
+        //! Define a rounding policy and specialize on the custom type.
+        template<class S>
+        struct Trunc: boost::numeric::Trunc<S>{};
+
+        template<>
+        struct Trunc<Double>
+        {
+          typedef Double source_type;
+
+          typedef Double const& argument_type;
+
+          static source_type nearbyint ( argument_type s )
+          {
+    #if !defined(BOOST_NO_STDC_NAMESPACE)
+              using std::floor;
+    #endif
+              return Double( floor(s.v) );
+          }
+
+          typedef boost::mpl::integral_c< std::float_round_style, std::round_toward_zero> round_style;
+        };
+    }//namespace custom;
+
+    namespace boost { namespace numeric {
+
+        //! Define the numeric_cast_traits specializations on the custom type.
+        template <typename S>
+        struct numeric_cast_traits<Double, S>
+        {
+            typedef custom::overflow_handler                         overflow_policy;
+            typedef custom::range_checker
+                    <
+                        boost::numeric::conversion_traits<Double, S>
+                      , overflow_policy
+                    >                                                range_checking_policy;
+            typedef boost::numeric::Trunc<S>                         rounding_policy;
+        };
+    
+        template <typename T>
+        struct numeric_cast_traits<T, Double>
+        {
+            typedef custom::overflow_handler                         overflow_policy;
+            typedef custom::range_checker
+                    <
+                        boost::numeric::conversion_traits<T, Double>
+                      , overflow_policy
+                    >                                                range_checking_policy;
+            typedef custom::Trunc<Double>                            rounding_policy;
+        };
+
+        //! Define the conversion from the custom type to built-in types and vice-versa.
+        template<typename T>
+        struct raw_converter< conversion_traits< T, Double > >
+        {
+            static T low_level_convert ( const Double& n )
+            {
+                return static_cast<T>( n.v ); 
+            }
+        };
+
+        template<typename S>
+        struct raw_converter< conversion_traits< Double, S > >
+        {
+            static Double low_level_convert ( const S& n )
+            {
+                return Double(n); 
+            }
+        };
+    }}//namespace boost::numeric;
+	
+[endsect]
+
+[endsect]
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/cast.hpp

@@ -0,0 +1,20 @@
+//  boost cast.hpp header file
+//
+//  (C) Copyright Antony Polukhin 2014.
+//
+//  Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+//  See http://www.boost.org/libs/conversion for Documentation.
+
+// This is a DEPRECATED header file!
+// Use <boost/polymorphic_cast.hpp> or <boost/numeric/conversion/cast.hpp> instead
+
+#ifndef BOOST_CAST_HPP
+#define BOOST_CAST_HPP
+
+# include <boost/polymorphic_cast.hpp>
+# include <boost/numeric/conversion/cast.hpp>
+
+#endif  // BOOST_CAST_HPP

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/bounds.hpp

@@ -0,0 +1,24 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_BOUNDS_12NOV2002_HPP
+
+#include "boost/numeric/conversion/detail/bounds.hpp"
+
+namespace boost { namespace numeric 
+{
+
+template<class N>
+struct bounds : boundsdetail::get_impl<N>::type
+{} ;
+
+} } // namespace boost::numeric
+
+#endif

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/cast.hpp

@@ -0,0 +1,61 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+//
+//
+//  Revision History
+//
+//    19 Nov 2001 Syntatic changes as suggested by Darin Adler (Fernando Cacciola)
+//    08 Nov 2001 Fixes to accommodate MSVC (Fernando Cacciola)
+//    04 Nov 2001 Fixes to accommodate gcc2.92 (Fernando Cacciola)
+//    30 Oct 2001 Some fixes suggested by Daryle Walker (Fernando Cacciola)
+//    25 Oct 2001 Initial boostification (Fernando Cacciola)
+//    23 Jan 2004 Inital add to cvs (post review)s
+//    22 Jun 2011 Added support for specializing cast policies via numeric_cast_traits (Brandon Kohn).
+//
+#ifndef BOOST_NUMERIC_CONVERSION_CAST_25OCT2001_HPP
+#define BOOST_NUMERIC_CONVERSION_CAST_25OCT2001_HPP
+
+#include <boost/detail/workaround.hpp>
+
+#if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x582))
+
+#  include<boost/numeric/conversion/detail/old_numeric_cast.hpp>
+
+#else
+
+#include <boost/type.hpp>
+#include <boost/numeric/conversion/converter.hpp>
+#include <boost/numeric/conversion/numeric_cast_traits.hpp>
+
+namespace boost
+{
+    template <typename Target, typename Source> 
+    inline Target numeric_cast( Source arg )
+    {
+        typedef numeric::conversion_traits<Target, Source>   conv_traits;
+        typedef numeric::numeric_cast_traits<Target, Source> cast_traits;
+        typedef boost::numeric::converter
+            <
+                Target,
+                Source, 
+                conv_traits,
+                typename cast_traits::overflow_policy, 
+                typename cast_traits::rounding_policy, 
+                boost::numeric::raw_converter< conv_traits >,
+                typename cast_traits::range_checking_policy
+            > converter;
+        return converter::convert(arg);
+    }
+    
+    using numeric::bad_numeric_cast;
+} // namespace boost
+
+#endif
+
+#endif

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/conversion_traits.hpp

@@ -0,0 +1,32 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_CONVERSION_TRAITS_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_CONVERSION_TRAITS_FLC_12NOV2002_HPP
+
+#include "boost/numeric/conversion/detail/conversion_traits.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/config.hpp"
+
+namespace boost { namespace numeric
+{
+
+template<class T, class S>
+struct conversion_traits 
+    : convdetail::get_conversion_traits<T,S>::type 
+{
+} ;
+
+} } // namespace boost::numeric
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/converter.hpp

@@ -0,0 +1,68 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_CONVERTER_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_CONVERTER_FLC_12NOV2002_HPP
+
+#include "boost/numeric/conversion/conversion_traits.hpp"
+#include "boost/numeric/conversion/converter_policies.hpp"
+
+#include "boost/numeric/conversion/detail/converter.hpp"
+
+namespace boost { namespace numeric 
+{
+
+template<class T,
+         class S,
+         class Traits           = conversion_traits<T,S>,
+         class OverflowHandler  = def_overflow_handler,
+         class Float2IntRounder = Trunc< BOOST_DEDUCED_TYPENAME Traits::source_type>  ,
+         class RawConverter     = raw_converter<Traits>,
+         class UserRangeChecker = UseInternalRangeChecker
+        >
+struct converter : convdetail::get_converter_impl<Traits,
+                                                  OverflowHandler,
+                                                  Float2IntRounder,
+                                                  RawConverter,
+                                                  UserRangeChecker
+                                                 >::type
+{
+  typedef Traits traits ;
+
+  typedef typename Traits::argument_type argument_type ;
+  typedef typename Traits::result_type   result_type   ;
+
+  result_type operator() ( argument_type s ) const { return this->convert(s) ; }
+} ;
+
+
+
+template<class S,
+         class OverflowHandler  = def_overflow_handler,
+         class Float2IntRounder = Trunc<S>  ,
+         class UserRangeChecker = UseInternalRangeChecker
+        >
+struct make_converter_from
+{
+  template<class T,
+           class Traits       = conversion_traits<T,S>,
+           class RawConverter = raw_converter<Traits>
+          > 
+  struct to
+  {
+    typedef converter<T,S,Traits,OverflowHandler,Float2IntRounder,RawConverter,UserRangeChecker> type ;
+  } ;
+
+} ;
+
+} } // namespace boost::numeric
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/converter_policies.hpp

@@ -0,0 +1,194 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_NUMERIC_CONVERSION_CONVERTER_POLICIES_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_CONVERTER_POLICIES_FLC_12NOV2002_HPP
+
+#include <functional>
+#include <typeinfo> // for std::bad_cast
+
+#include <boost/config.hpp>
+#include <boost/config/no_tr1/cmath.hpp> // for std::floor and std::ceil
+#include <boost/throw_exception.hpp>
+
+#include "boost/type_traits/is_arithmetic.hpp"
+
+#include "boost/mpl/if.hpp"
+#include "boost/mpl/integral_c.hpp"
+
+namespace boost { namespace numeric
+{
+
+template<class S>
+struct Trunc
+{
+  typedef S source_type ;
+
+  typedef typename mpl::if_< is_arithmetic<S>,S,S const&>::type argument_type ;
+
+  static source_type nearbyint ( argument_type s )
+  {
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::floor ;
+    using std::ceil  ;
+#endif
+
+    return s < static_cast<S>(0) ? ceil(s) : floor(s) ;
+  }
+
+  typedef mpl::integral_c< std::float_round_style, std::round_toward_zero> round_style ;
+} ;
+
+
+
+template<class S>
+struct Floor
+{
+  typedef S source_type ;
+
+  typedef typename mpl::if_< is_arithmetic<S>,S,S const&>::type argument_type ;
+
+  static source_type nearbyint ( argument_type s )
+  {
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::floor ;
+#endif
+
+    return floor(s) ;
+  }
+
+  typedef mpl::integral_c< std::float_round_style, std::round_toward_neg_infinity> round_style ;
+} ;
+
+template<class S>
+struct Ceil
+{
+  typedef S source_type ;
+
+  typedef typename mpl::if_< is_arithmetic<S>,S,S const&>::type argument_type ;
+
+  static source_type nearbyint ( argument_type s )
+  {
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::ceil ;
+#endif
+
+    return ceil(s) ;
+  }
+
+  typedef mpl::integral_c< std::float_round_style, std::round_toward_infinity> round_style ;
+} ;
+
+template<class S>
+struct RoundEven
+{
+  typedef S source_type ;
+
+  typedef typename mpl::if_< is_arithmetic<S>,S,S const&>::type argument_type ;
+
+  static source_type nearbyint ( argument_type s )
+  {
+    // Algorithm contributed by Guillaume Melquiond
+
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::floor ;
+    using std::ceil  ;
+#endif
+
+    // only works inside the range not at the boundaries
+    S prev = floor(s);
+    S next = ceil(s);
+
+    S rt = (s - prev) - (next - s); // remainder type
+
+    S const zero(0.0);
+    S const two(2.0);
+
+    if ( rt < zero )
+      return prev;
+    else if ( rt > zero )
+      return next;
+    else
+    {
+      bool is_prev_even = two * floor(prev / two) == prev ;
+      return ( is_prev_even ? prev : next ) ;
+    }
+  }
+
+  typedef mpl::integral_c< std::float_round_style, std::round_to_nearest> round_style ;
+} ;
+
+
+enum range_check_result
+{
+  cInRange     = 0 ,
+  cNegOverflow = 1 ,
+  cPosOverflow = 2
+} ;
+
+class bad_numeric_cast : public std::bad_cast
+{
+  public:
+
+    const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
+      {  return "bad numeric conversion: overflow"; }
+};
+
+class negative_overflow : public bad_numeric_cast
+{
+  public:
+
+    const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
+      {  return "bad numeric conversion: negative overflow"; }
+};
+class positive_overflow : public bad_numeric_cast
+{
+  public:
+
+    const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
+      { return "bad numeric conversion: positive overflow"; }
+};
+
+struct def_overflow_handler
+{
+  void operator() ( range_check_result r ) // throw(negative_overflow,positive_overflow)
+  {
+#ifndef BOOST_NO_EXCEPTIONS
+    if ( r == cNegOverflow )
+      throw negative_overflow() ;
+    else if ( r == cPosOverflow )
+           throw positive_overflow() ;
+#else
+    if ( r == cNegOverflow )
+      ::boost::throw_exception(negative_overflow()) ;
+    else if ( r == cPosOverflow )
+           ::boost::throw_exception(positive_overflow()) ;
+#endif
+  }
+} ;
+
+struct silent_overflow_handler
+{
+  void operator() ( range_check_result ) {} // throw()
+} ;
+
+template<class Traits>
+struct raw_converter
+{
+  typedef typename Traits::result_type   result_type   ;
+  typedef typename Traits::argument_type argument_type ;
+
+  static result_type low_level_convert ( argument_type s ) { return static_cast<result_type>(s) ; }
+} ;
+
+struct UseInternalRangeChecker {} ;
+
+} } // namespace boost::numeric
+
+#endif

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/bounds.hpp

@@ -0,0 +1,58 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
+
+#include "boost/limits.hpp"
+#include "boost/config.hpp"
+#include "boost/mpl/if.hpp"
+
+namespace boost { namespace numeric { namespace boundsdetail
+{
+  template<class N>
+  class Integral
+  {
+      typedef std::numeric_limits<N> limits ;
+
+    public :
+    
+      static N lowest  () { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+      static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+      static N smallest() { return static_cast<N>(1); }
+  } ;
+
+  template<class N>
+  class Float
+  {
+      typedef std::numeric_limits<N> limits ;
+
+    public :
+    
+      static N lowest  () { return static_cast<N>(-limits::max BOOST_PREVENT_MACRO_SUBSTITUTION ()) ; }
+      static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+      static N smallest() { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+  } ;
+
+  template<class N>
+  struct get_impl
+  {
+    typedef mpl::bool_< ::std::numeric_limits<N>::is_integer > is_int ;
+
+    typedef Integral<N> impl_int   ;
+    typedef Float   <N> impl_float ;
+
+    typedef typename mpl::if_<is_int,impl_int,impl_float>::type type ;
+  } ;
+
+} } } // namespace boost::numeric::boundsdetail.
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/conversion_traits.hpp

@@ -0,0 +1,97 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_CONVERSION_TRAITS_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_CONVERSION_TRAITS_FLC_12NOV2002_HPP
+
+#include "boost/type_traits/is_arithmetic.hpp"
+#include "boost/type_traits/is_same.hpp"
+#include "boost/type_traits/remove_cv.hpp"
+
+#include "boost/numeric/conversion/detail/meta.hpp"
+#include "boost/numeric/conversion/detail/int_float_mixture.hpp"
+#include "boost/numeric/conversion/detail/sign_mixture.hpp"
+#include "boost/numeric/conversion/detail/udt_builtin_mixture.hpp"
+#include "boost/numeric/conversion/detail/is_subranged.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+  //-------------------------------------------------------------------
+  // Implementation of the Conversion Traits for T != S
+  //
+  // This is a VISIBLE base class of the user-level conversion_traits<> class.
+  //-------------------------------------------------------------------
+  template<class T,class S>
+  struct non_trivial_traits_impl
+  {
+    typedef typename get_int_float_mixture   <T,S>::type int_float_mixture ;
+    typedef typename get_sign_mixture        <T,S>::type sign_mixture ;
+    typedef typename get_udt_builtin_mixture <T,S>::type udt_builtin_mixture ;
+
+    typedef typename get_is_subranged<T,S>::type subranged ;
+
+    typedef mpl::false_ trivial ;
+
+    typedef T target_type ;
+    typedef S source_type ;
+    typedef T result_type ;
+
+    typedef typename mpl::if_< is_arithmetic<S>, S, S const&>::type argument_type ;
+
+    typedef typename mpl::if_<subranged,S,T>::type supertype ;
+    typedef typename mpl::if_<subranged,T,S>::type subtype   ;
+  } ;
+
+  //-------------------------------------------------------------------
+  // Implementation of the Conversion Traits for T == S
+  //
+  // This is a VISIBLE base class of the user-level conversion_traits<> class.
+  //-------------------------------------------------------------------
+  template<class N>
+  struct trivial_traits_impl
+  {
+    typedef typename get_int_float_mixture  <N,N>::type int_float_mixture ;
+    typedef typename get_sign_mixture       <N,N>::type sign_mixture ;
+    typedef typename get_udt_builtin_mixture<N,N>::type udt_builtin_mixture ;
+
+    typedef mpl::false_ subranged ;
+    typedef mpl::true_  trivial ;
+
+    typedef N        target_type ;
+    typedef N        source_type ;
+    typedef N const& result_type ;
+    typedef N const& argument_type ;
+
+    typedef N supertype ;
+    typedef N subtype  ;
+
+  } ;
+
+  //-------------------------------------------------------------------
+  // Top level implementation selector.
+  //-------------------------------------------------------------------
+  template<class T, class S>
+  struct get_conversion_traits
+  {
+    typedef typename remove_cv<T>::type target_type ;
+    typedef typename remove_cv<S>::type source_type ;
+
+    typedef typename is_same<target_type,source_type>::type is_trivial ;
+
+    typedef trivial_traits_impl    <target_type>             trivial_imp ;
+    typedef non_trivial_traits_impl<target_type,source_type> non_trivial_imp ;
+
+    typedef typename mpl::if_<is_trivial,trivial_imp,non_trivial_imp>::type type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/converter.hpp

@@ -0,0 +1,593 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_CONVERTER_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_CONVERTER_FLC_12NOV2002_HPP
+
+#include <functional>
+
+#include "boost/numeric/conversion/detail/meta.hpp"
+#include "boost/numeric/conversion/detail/conversion_traits.hpp"
+#include "boost/numeric/conversion/bounds.hpp"
+
+#include "boost/type_traits/is_same.hpp"
+
+#include "boost/mpl/integral_c.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+  // Integral Constants representing rounding modes
+  typedef mpl::integral_c<std::float_round_style, std::round_toward_zero>         round2zero_c ;
+  typedef mpl::integral_c<std::float_round_style, std::round_to_nearest>          round2nearest_c ;
+  typedef mpl::integral_c<std::float_round_style, std::round_toward_infinity>     round2inf_c ;
+  typedef mpl::integral_c<std::float_round_style, std::round_toward_neg_infinity> round2neg_inf_c ;
+
+  // Metafunction:
+  //
+  //   for_round_style<RoundStyle,RoundToZero,RoundToNearest,RoundToInf,RoundToNegInf>::type
+  //
+  // {RoundStyle} Integral Constant specifying a round style as declared above.
+  // {RoundToZero,RoundToNearest,RoundToInf,RoundToNegInf} arbitrary types.
+  //
+  // Selects one of the 4 types according to the value of RoundStyle.
+  //
+  template<class RoundStyle,class RoundToZero,class RoundToNearest,class RoundToInf,class RoundToNegInf>
+  struct for_round_style
+  {
+    typedef ct_switch4<RoundStyle
+                       , round2zero_c, round2nearest_c, round2inf_c // round2neg_inf_c
+                       , RoundToZero , RoundToNearest , RoundToInf , RoundToNegInf
+                      > selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//--------------------------------------------------------------------------
+//                             Range Checking Logic.
+//
+// The range checking logic is built up by combining 1 or 2 predicates.
+// Each predicate is encapsulated in a template class and exposes
+// the static member function 'apply'.
+//
+//--------------------------------------------------------------------------
+
+
+  // Because a particular logic can combine either 1 or two predicates, the following
+  // tags are used to allow the predicate applier to receive 2 preds, but optimize away
+  // one of them if it is 'non-applicable'
+  struct non_applicable { typedef mpl::false_ do_apply ; } ;
+  struct applicable     { typedef mpl::true_  do_apply ; } ;
+
+
+  //--------------------------------------------------------------------------
+  //
+  //                      Range Checking Logic implementations.
+  //
+  // The following classes, collectivelly named 'Predicates', are instantiated within
+  // the corresponding range checkers.
+  // Their static member function 'apply' is called to perform the actual range checking logic.
+  //--------------------------------------------------------------------------
+
+    // s < Lowest(T) ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LT_LoT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s < static_cast<S>(bounds<T>::lowest()) ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s < 0 ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LT_Zero : applicable
+    {
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s < static_cast<S>(0) ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s <= Lowest(T)-1 ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LE_PrevLoT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s <= static_cast<S>(bounds<T>::lowest()) - static_cast<S>(1.0)
+                 ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s < Lowest(T)-0.5 ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LT_HalfPrevLoT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s < static_cast<S>(bounds<T>::lowest()) - static_cast<S>(0.5)
+                 ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s > Highest(T) ? cPosOverflow : cInRange
+    //
+    template<class Traits>
+    struct GT_HiT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s > static_cast<S>(bounds<T>::highest())
+                 ? cPosOverflow : cInRange ;
+      }
+    } ;
+
+    // s >= Lowest(T) + 1 ? cPosOverflow : cInRange
+    //
+    template<class Traits>
+    struct GE_SuccHiT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s >= static_cast<S>(bounds<T>::highest()) + static_cast<S>(1.0)
+                 ? cPosOverflow : cInRange ;
+      }
+    } ;
+
+    // s >= Lowest(T) + 0.5 ? cPosgOverflow : cInRange
+    //
+    template<class Traits>
+    struct GT_HalfSuccHiT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s >= static_cast<S>(bounds<T>::highest()) + static_cast<S>(0.5)
+                 ? cPosOverflow : cInRange ;
+      }
+    } ;
+
+
+  //--------------------------------------------------------------------------
+  //
+  // Predicate Combiner.
+  //
+  // This helper classes are used to possibly combine the range checking logic
+  // individually performed by the predicates
+  //
+  //--------------------------------------------------------------------------
+
+
+    // Applies both predicates: first 'PredA', and if it equals 'cInRange', 'PredB'
+    template<class PredA, class PredB>
+    struct applyBoth
+    {
+      typedef typename PredA::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        range_check_result r = PredA::apply(s) ;
+        if ( r == cInRange )
+          r = PredB::apply(s);
+        return r ;
+      }
+    } ;
+
+    template<class PredA, class PredB>
+    struct combine
+    {
+      typedef applyBoth<PredA,PredB> Both ;
+      typedef void                   NNone ; // 'None' is defined as a macro in (/usr/X11R6/include/X11/X.h)
+
+      typedef typename PredA::do_apply do_applyA ;
+      typedef typename PredB::do_apply do_applyB ;
+
+      typedef typename for_both<do_applyA, do_applyB, Both, PredA, PredB, NNone>::type type ;
+    } ;
+
+
+
+
+
+
+
+
+
+
+
+
+//--------------------------------------------------------------------------
+//                             Range Checker classes.
+//
+// The following classes are VISIBLE base classes of the user-level converter<> class.
+// They supply the optimized 'out_of_range()' and 'validate_range()' static member functions
+// visible in the user interface.
+//
+//--------------------------------------------------------------------------
+
+  // Dummy range checker.
+  template<class Traits>
+  struct dummy_range_checker
+  {
+    typedef typename Traits::argument_type argument_type ;
+
+    static range_check_result out_of_range ( argument_type ) { return cInRange ; }
+    static void validate_range ( argument_type ) {}
+  } ;
+
+  // Generic range checker.
+  //
+  // All the range checking logic for all possible combinations of source and target
+  // can be arranged in terms of one or two predicates, which test overflow on both neg/pos 'sides'
+  // of the ranges.
+  //
+  // These predicates are given here as IsNegOverflow and IsPosOverflow.
+  //
+  template<class Traits, class IsNegOverflow, class IsPosOverflow, class OverflowHandler>
+  struct generic_range_checker
+  {
+    typedef OverflowHandler overflow_handler ;
+
+    typedef typename Traits::argument_type argument_type ;
+
+    static range_check_result out_of_range ( argument_type s )
+    {
+      typedef typename combine<IsNegOverflow,IsPosOverflow>::type Predicate ;
+
+      return Predicate::apply(s);
+    }
+
+    static void validate_range ( argument_type s )
+      { OverflowHandler()( out_of_range(s) ) ; }
+  } ;
+
+
+
+//--------------------------------------------------------------------------
+//
+// Selectors for the optimized Range Checker class.
+//
+//--------------------------------------------------------------------------
+
+  template<class Traits,class OverflowHandler>
+  struct GetRC_Sig2Sig_or_Unsig2Unsig
+  {
+    typedef dummy_range_checker<Traits> Dummy ;
+
+    typedef LT_LoT<Traits> Pred1 ;
+    typedef GT_HiT<Traits> Pred2 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> Normal ;
+
+    typedef typename Traits::subranged subranged ;
+
+    typedef typename mpl::if_<subranged,Normal,Dummy>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler>
+  struct GetRC_Sig2Unsig
+  {
+    typedef LT_Zero<Traits> Pred1 ;
+    typedef GT_HiT <Traits> Pred2 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> ChoiceA ;
+
+    typedef generic_range_checker<Traits,Pred1,non_applicable,OverflowHandler> ChoiceB ;
+
+    typedef typename Traits::target_type T ;
+    typedef typename Traits::source_type S ;
+
+    typedef typename subranged_Unsig2Sig<S,T>::type oposite_subranged ;
+
+    typedef typename mpl::not_<oposite_subranged>::type positively_subranged ;
+
+    typedef typename mpl::if_<positively_subranged,ChoiceA,ChoiceB>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler>
+  struct GetRC_Unsig2Sig
+  {
+    typedef GT_HiT<Traits> Pred1 ;
+
+    typedef generic_range_checker<Traits,non_applicable,Pred1,OverflowHandler> type ;
+  } ;
+
+  template<class Traits,class OverflowHandler>
+  struct GetRC_Int2Int
+  {
+    typedef GetRC_Sig2Sig_or_Unsig2Unsig<Traits,OverflowHandler> Sig2SigQ     ;
+    typedef GetRC_Sig2Unsig             <Traits,OverflowHandler> Sig2UnsigQ   ;
+    typedef GetRC_Unsig2Sig             <Traits,OverflowHandler> Unsig2SigQ   ;
+    typedef Sig2SigQ                                             Unsig2UnsigQ ;
+
+    typedef typename Traits::sign_mixture sign_mixture ;
+
+    typedef typename
+      for_sign_mixture<sign_mixture,Sig2SigQ,Sig2UnsigQ,Unsig2SigQ,Unsig2UnsigQ>::type
+        selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+  template<class Traits>
+  struct GetRC_Int2Float
+  {
+    typedef dummy_range_checker<Traits> type ;
+  } ;
+
+  template<class Traits, class OverflowHandler, class Float2IntRounder>
+  struct GetRC_Float2Int
+  {
+    typedef LE_PrevLoT    <Traits> Pred1 ;
+    typedef GE_SuccHiT    <Traits> Pred2 ;
+    typedef LT_HalfPrevLoT<Traits> Pred3 ;
+    typedef GT_HalfSuccHiT<Traits> Pred4 ;
+    typedef GT_HiT        <Traits> Pred5 ;
+    typedef LT_LoT        <Traits> Pred6 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> ToZero    ;
+    typedef generic_range_checker<Traits,Pred3,Pred4,OverflowHandler> ToNearest ;
+    typedef generic_range_checker<Traits,Pred1,Pred5,OverflowHandler> ToInf     ;
+    typedef generic_range_checker<Traits,Pred6,Pred2,OverflowHandler> ToNegInf  ;
+
+    typedef typename Float2IntRounder::round_style round_style ;
+
+    typedef typename for_round_style<round_style,ToZero,ToNearest,ToInf,ToNegInf>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler>
+  struct GetRC_Float2Float
+  {
+    typedef dummy_range_checker<Traits> Dummy ;
+
+    typedef LT_LoT<Traits> Pred1 ;
+    typedef GT_HiT<Traits> Pred2 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> Normal ;
+
+    typedef typename Traits::subranged subranged ;
+
+    typedef typename mpl::if_<subranged,Normal,Dummy>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler, class Float2IntRounder>
+  struct GetRC_BuiltIn2BuiltIn
+  {
+    typedef GetRC_Int2Int<Traits,OverflowHandler>                    Int2IntQ ;
+    typedef GetRC_Int2Float<Traits>                                  Int2FloatQ ;
+    typedef GetRC_Float2Int<Traits,OverflowHandler,Float2IntRounder> Float2IntQ ;
+    typedef GetRC_Float2Float<Traits,OverflowHandler>                Float2FloatQ ;
+
+    typedef typename Traits::int_float_mixture int_float_mixture ;
+
+    typedef typename for_int_float_mixture<int_float_mixture, Int2IntQ, Int2FloatQ, Float2IntQ, Float2FloatQ>::type selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler, class Float2IntRounder>
+  struct GetRC
+  {
+    typedef GetRC_BuiltIn2BuiltIn<Traits,OverflowHandler,Float2IntRounder> BuiltIn2BuiltInQ ;
+
+    typedef dummy_range_checker<Traits> Dummy ;
+
+    typedef mpl::identity<Dummy> DummyQ ;
+
+    typedef typename Traits::udt_builtin_mixture udt_builtin_mixture ;
+
+    typedef typename for_udt_builtin_mixture<udt_builtin_mixture,BuiltIn2BuiltInQ,DummyQ,DummyQ,DummyQ>::type selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+
+
+
+//--------------------------------------------------------------------------
+//                             Converter classes.
+//
+// The following classes are VISIBLE base classes of the user-level converter<> class.
+// They supply the optimized 'nearbyint()' and 'convert()' static member functions
+// visible in the user interface.
+//
+//--------------------------------------------------------------------------
+
+  //
+  // Trivial Converter : used when (cv-unqualified) T == (cv-unqualified)  S
+  //
+  template<class Traits>
+  struct trivial_converter_impl : public dummy_range_checker<Traits>
+  {
+    typedef Traits traits ;
+    
+    typedef typename Traits::source_type   source_type   ;
+    typedef typename Traits::argument_type argument_type ;
+    typedef typename Traits::result_type   result_type   ;
+
+    static result_type low_level_convert ( argument_type s ) { return s ; }
+    static source_type nearbyint         ( argument_type s ) { return s ; }
+    static result_type convert           ( argument_type s ) { return s ; }
+  } ;
+
+
+  //
+  // Rounding Converter : used for float to integral conversions.
+  //
+  template<class Traits,class RangeChecker,class RawConverter,class Float2IntRounder>
+  struct rounding_converter : public RangeChecker
+                             ,public Float2IntRounder
+                             ,public RawConverter
+  {
+    typedef RangeChecker     RangeCheckerBase ;
+    typedef Float2IntRounder Float2IntRounderBase ;
+    typedef RawConverter     RawConverterBase ;
+
+    typedef Traits traits ;
+
+    typedef typename Traits::source_type   source_type   ;
+    typedef typename Traits::argument_type argument_type ;
+    typedef typename Traits::result_type   result_type   ;
+
+    static result_type convert ( argument_type s )
+    {
+      RangeCheckerBase::validate_range(s);
+      source_type s1 = Float2IntRounderBase::nearbyint(s);
+      return RawConverterBase::low_level_convert(s1);
+    }
+  } ;
+
+
+  //
+  // Non-Rounding Converter : used for all other conversions.
+  //
+  template<class Traits,class RangeChecker,class RawConverter>
+  struct non_rounding_converter : public RangeChecker
+                                 ,public RawConverter
+  {
+    typedef RangeChecker RangeCheckerBase ;
+    typedef RawConverter RawConverterBase ;
+
+    typedef Traits traits ;
+
+    typedef typename Traits::source_type   source_type   ;
+    typedef typename Traits::argument_type argument_type ;
+    typedef typename Traits::result_type   result_type   ;
+
+    static source_type nearbyint ( argument_type s ) { return s ; }
+
+    static result_type convert ( argument_type s )
+    {
+      RangeCheckerBase::validate_range(s);
+      return RawConverterBase::low_level_convert(s);
+    }
+  } ;
+
+
+
+
+//--------------------------------------------------------------------------
+//
+// Selectors for the optimized Converter class.
+//
+//--------------------------------------------------------------------------
+
+  template<class Traits,class OverflowHandler,class Float2IntRounder,class RawConverter, class UserRangeChecker>
+  struct get_non_trivial_converter
+  {
+    typedef GetRC<Traits,OverflowHandler,Float2IntRounder> InternalRangeCheckerQ ;
+
+    typedef is_same<UserRangeChecker,UseInternalRangeChecker> use_internal_RC ;
+
+    typedef mpl::identity<UserRangeChecker> UserRangeCheckerQ ;
+
+    typedef typename
+      mpl::eval_if<use_internal_RC,InternalRangeCheckerQ,UserRangeCheckerQ>::type
+        RangeChecker ;
+
+    typedef non_rounding_converter<Traits,RangeChecker,RawConverter>              NonRounding ;
+    typedef rounding_converter<Traits,RangeChecker,RawConverter,Float2IntRounder> Rounding ;
+
+    typedef mpl::identity<NonRounding> NonRoundingQ ;
+    typedef mpl::identity<Rounding>    RoundingQ    ;
+
+    typedef typename Traits::int_float_mixture int_float_mixture ;
+
+    typedef typename
+      for_int_float_mixture<int_float_mixture, NonRoundingQ, NonRoundingQ, RoundingQ, NonRoundingQ>::type
+        selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+  template< class Traits
+           ,class OverflowHandler
+           ,class Float2IntRounder
+           ,class RawConverter
+           ,class UserRangeChecker
+          >
+  struct get_converter_impl
+  {
+#if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT( 0x0561 ) )
+    // bcc55 prefers sometimes template parameters to be explicit local types.
+    // (notice that is is illegal to reuse the names like this)
+    typedef Traits           Traits ;
+    typedef OverflowHandler  OverflowHandler ;
+    typedef Float2IntRounder Float2IntRounder ;
+    typedef RawConverter     RawConverter ;
+    typedef UserRangeChecker UserRangeChecker ;
+#endif
+
+    typedef trivial_converter_impl<Traits> Trivial ;
+    typedef mpl::identity        <Trivial> TrivialQ ;
+
+    typedef get_non_trivial_converter< Traits
+                                      ,OverflowHandler
+                                      ,Float2IntRounder
+                                      ,RawConverter
+                                      ,UserRangeChecker
+                                     > NonTrivialQ ;
+
+    typedef typename Traits::trivial trivial ;
+
+    typedef typename mpl::eval_if<trivial,TrivialQ,NonTrivialQ>::type type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/int_float_mixture.hpp

@@ -0,0 +1,72 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/config.hpp"
+#include "boost/limits.hpp"
+
+#include "boost/numeric/conversion/int_float_mixture_enum.hpp"
+#include "boost/numeric/conversion/detail/meta.hpp"
+
+#include "boost/mpl/integral_c.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+  // Integral Constants for 'IntFloatMixture'
+  typedef mpl::integral_c<int_float_mixture_enum, integral_to_integral> int2int_c ;
+  typedef mpl::integral_c<int_float_mixture_enum, integral_to_float>    int2float_c ;
+  typedef mpl::integral_c<int_float_mixture_enum, float_to_integral>    float2int_c ;
+  typedef mpl::integral_c<int_float_mixture_enum, float_to_float>       float2float_c ;
+
+  // Metafunction:
+  //
+  //   get_int_float_mixture<T,S>::type
+  //
+  // Selects the appropriate Int-Float Mixture Integral Constant for the combination T,S.
+  //
+  template<class T,class S>
+  struct get_int_float_mixture
+  {
+    typedef mpl::bool_< ::std::numeric_limits<S>::is_integer > S_int ;
+    typedef mpl::bool_< ::std::numeric_limits<T>::is_integer > T_int ;
+
+    typedef typename
+      for_both<S_int, T_int, int2int_c, int2float_c, float2int_c, float2float_c>::type
+        type ;
+  } ;
+
+  // Metafunction:
+  //
+  //   for_int_float_mixture<Mixture,int_int,int_float,float_int,float_float>::type
+  //
+  // {Mixture} is one of the Integral Constants for Mixture, declared above.
+  // {int_int,int_float,float_int,float_float} are aribtrary types. (not metafunctions)
+  //
+  // According to the value of 'IntFloatMixture', selects the corresponding type.
+  //
+  template<class IntFloatMixture, class Int2Int, class Int2Float, class Float2Int, class Float2Float>
+  struct for_int_float_mixture
+  {
+    typedef typename
+      ct_switch4<IntFloatMixture
+                 ,int2int_c, int2float_c, float2int_c  // default
+                 ,Int2Int  , Int2Float  , Float2Int  , Float2Float
+                >::type
+        type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/is_subranged.hpp

@@ -0,0 +1,234 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_IS_SUBRANGED_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_IS_SUBRANGED_FLC_12NOV2002_HPP
+
+#include "boost/config.hpp"
+#include "boost/limits.hpp"
+
+#include "boost/mpl/int.hpp"
+#include "boost/mpl/multiplies.hpp"
+#include "boost/mpl/less.hpp"
+#include "boost/mpl/equal_to.hpp"
+
+#include "boost/type_traits/is_same.hpp"
+
+#include "boost/numeric/conversion/detail/meta.hpp"
+#include "boost/numeric/conversion/detail/int_float_mixture.hpp"
+#include "boost/numeric/conversion/detail/sign_mixture.hpp"
+#include "boost/numeric/conversion/detail/udt_builtin_mixture.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+  //---------------------------------------------------------------
+  // Implementations of the compile time predicate "T is subranged"
+  //---------------------------------------------------------------
+
+    // for integral to integral conversions
+    template<class T,class S>
+    struct subranged_Sig2Unsig
+    {
+      // Signed to unsigned conversions are 'subranged' because of possible loose
+      // of negative values.
+      typedef mpl::true_ type ;
+    } ;
+
+    // for unsigned integral to signed integral conversions
+    template<class T,class S>
+    struct subranged_Unsig2Sig
+    {
+       // IMPORTANT NOTE:
+       //
+       // This code assumes that signed/unsigned integral values are represented
+       // such that:
+       //
+       //  numeric_limits<signed T>::digits + 1 == numeric_limits<unsigned T>::digits
+       //
+       // The '+1' is required since numeric_limits<>::digits gives 1 bit less for signed integral types.
+       //
+       // This fact is used by the following logic:
+       //
+       //  if ( (numeric_limits<T>::digits+1) < (2*numeric_limits<S>::digits) )
+       //    then the conversion is subranged.
+       //
+
+       typedef mpl::int_< ::std::numeric_limits<S>::digits > S_digits ;
+       typedef mpl::int_< ::std::numeric_limits<T>::digits > T_digits ;
+
+       // T is signed, so take digits+1
+       typedef typename T_digits::next u_T_digits ;
+
+       typedef mpl::int_<2> Two ;
+
+       typedef typename mpl::multiplies<S_digits,Two>::type S_digits_times_2 ;
+
+       typedef typename mpl::less<u_T_digits,S_digits_times_2>::type type ;
+    } ;
+
+    // for integral to integral conversions of the same sign.
+    template<class T,class S>
+    struct subranged_SameSign
+    {
+       // An integral conversion of the same sign is subranged if digits(T) < digits(S).
+
+       typedef mpl::int_< ::std::numeric_limits<S>::digits > S_digits ;
+       typedef mpl::int_< ::std::numeric_limits<T>::digits > T_digits ;
+
+       typedef typename mpl::less<T_digits,S_digits>::type type ;
+    } ;
+
+    // for integral to float conversions
+    template<class T,class S>
+    struct subranged_Int2Float
+    {
+      typedef mpl::false_ type ;
+    } ;
+
+    // for float to integral conversions
+    template<class T,class S>
+    struct subranged_Float2Int
+    {
+      typedef mpl::true_ type ;
+    } ;
+
+    // for float to float conversions
+    template<class T,class S>
+    struct subranged_Float2Float
+    {
+      // If both T and S are floats,
+      // compare exponent bits and if they match, mantisa bits.
+
+      typedef mpl::int_< ::std::numeric_limits<S>::digits > S_mantisa ;
+      typedef mpl::int_< ::std::numeric_limits<T>::digits > T_mantisa ;
+
+      typedef mpl::int_< ::std::numeric_limits<S>::max_exponent > S_exponent ;
+      typedef mpl::int_< ::std::numeric_limits<T>::max_exponent > T_exponent ;
+
+      typedef typename mpl::less<T_exponent,S_exponent>::type T_smaller_exponent ;
+
+      typedef typename mpl::equal_to<T_exponent,S_exponent>::type equal_exponents ;
+
+      typedef mpl::less<T_mantisa,S_mantisa> T_smaller_mantisa ;
+
+      typedef mpl::eval_if<equal_exponents,T_smaller_mantisa,mpl::false_> not_bigger_exponent_case ;
+
+      typedef typename
+        mpl::eval_if<T_smaller_exponent,mpl::true_,not_bigger_exponent_case>::type
+          type ;
+    } ;
+
+    // for Udt to built-in conversions
+    template<class T,class S>
+    struct subranged_Udt2BuiltIn
+    {
+      typedef mpl::true_ type ;
+    } ;
+
+    // for built-in to Udt conversions
+    template<class T,class S>
+    struct subranged_BuiltIn2Udt
+    {
+      typedef mpl::false_ type ;
+    } ;
+
+    // for Udt to Udt conversions
+    template<class T,class S>
+    struct subranged_Udt2Udt
+    {
+      typedef mpl::false_ type ;
+    } ;
+
+  //-------------------------------------------------------------------
+  // Selectors for the implementations of the subranged predicate
+  //-------------------------------------------------------------------
+
+    template<class T,class S>
+    struct get_subranged_Int2Int
+    {
+      typedef subranged_SameSign<T,S>  Sig2Sig     ;
+      typedef subranged_Sig2Unsig<T,S> Sig2Unsig   ;
+      typedef subranged_Unsig2Sig<T,S> Unsig2Sig   ;
+      typedef Sig2Sig                  Unsig2Unsig ;
+
+      typedef typename get_sign_mixture<T,S>::type sign_mixture ;
+
+      typedef typename
+        for_sign_mixture<sign_mixture, Sig2Sig, Sig2Unsig, Unsig2Sig, Unsig2Unsig>::type
+           type ;
+    } ;
+
+    template<class T,class S>
+    struct get_subranged_BuiltIn2BuiltIn
+    {
+      typedef get_subranged_Int2Int<T,S> Int2IntQ ;
+
+      typedef subranged_Int2Float  <T,S> Int2Float   ;
+      typedef subranged_Float2Int  <T,S> Float2Int   ;
+      typedef subranged_Float2Float<T,S> Float2Float ;
+
+      typedef mpl::identity<Int2Float  > Int2FloatQ   ;
+      typedef mpl::identity<Float2Int  > Float2IntQ   ;
+      typedef mpl::identity<Float2Float> Float2FloatQ ;
+
+      typedef typename get_int_float_mixture<T,S>::type int_float_mixture ;
+
+      typedef for_int_float_mixture<int_float_mixture, Int2IntQ, Int2FloatQ, Float2IntQ, Float2FloatQ> for_ ;
+
+      typedef typename for_::type selected ;
+
+      typedef typename selected::type type ;
+    } ;
+
+    template<class T,class S>
+    struct get_subranged
+    {
+      typedef get_subranged_BuiltIn2BuiltIn<T,S> BuiltIn2BuiltInQ ;
+
+      typedef subranged_BuiltIn2Udt<T,S> BuiltIn2Udt ;
+      typedef subranged_Udt2BuiltIn<T,S> Udt2BuiltIn ;
+      typedef subranged_Udt2Udt<T,S>     Udt2Udt ;
+
+      typedef mpl::identity<BuiltIn2Udt> BuiltIn2UdtQ ;
+      typedef mpl::identity<Udt2BuiltIn> Udt2BuiltInQ ;
+      typedef mpl::identity<Udt2Udt    > Udt2UdtQ     ;
+
+      typedef typename get_udt_builtin_mixture<T,S>::type udt_builtin_mixture ;
+      
+      typedef typename
+        for_udt_builtin_mixture<udt_builtin_mixture, BuiltIn2BuiltInQ, BuiltIn2UdtQ, Udt2BuiltInQ, Udt2UdtQ>::type
+          selected ;
+
+      typedef typename selected::type selected2 ;
+ 
+      typedef typename selected2::type type ;
+    } ;
+
+
+  //-------------------------------------------------------------------
+  // Top level implementation selector.
+  //-------------------------------------------------------------------
+  template<class T, class S>
+  struct get_is_subranged
+  {
+    typedef get_subranged<T,S>         non_trivial_case ;
+    typedef mpl::identity<mpl::false_> trivial_case ;
+
+    typedef is_same<T,S> is_trivial ;
+   
+    typedef typename mpl::if_<is_trivial,trivial_case,non_trivial_case>::type selected ;
+    
+    typedef typename selected::type type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/meta.hpp

@@ -0,0 +1,120 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_META_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_META_FLC_12NOV2002_HPP
+
+#include "boost/type_traits/remove_cv.hpp"
+
+#include "boost/mpl/if.hpp"
+#include "boost/mpl/eval_if.hpp"
+#include "boost/mpl/equal_to.hpp"
+#include "boost/mpl/not.hpp"
+#include "boost/mpl/and.hpp"
+#include "boost/mpl/bool.hpp"
+#include "boost/mpl/identity.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+   template< class T1, class T2>
+   struct equal_to
+   {
+   #if !defined(BOOST_BORLANDC)
+   
+       enum { x = ( BOOST_MPL_AUX_VALUE_WKND(T1)::value == BOOST_MPL_AUX_VALUE_WKND(T2)::value ) };
+           
+       BOOST_STATIC_CONSTANT(bool, value = x);
+           
+       typedef mpl::bool_<value> type;
+       
+   #else
+   
+       BOOST_STATIC_CONSTANT(bool, value = (
+             BOOST_MPL_AUX_VALUE_WKND(T1)::value 
+               == BOOST_MPL_AUX_VALUE_WKND(T2)::value
+           ));
+           
+       typedef mpl::bool_<(
+             BOOST_MPL_AUX_VALUE_WKND(T1)::value 
+               == BOOST_MPL_AUX_VALUE_WKND(T2)::value
+           )> type;
+   #endif
+   };
+    
+// Metafunction:
+  //
+  //   ct_switch4<Value,Case0Val,Case1Val,Case2Val,Case0Type,Case1Type,Case2Type,DefaultType>::type
+  //
+  // {Value,Case(X)Val} are Integral Constants (such as: mpl::int_<>)
+  // {Case(X)Type,DefaultType} are arbitrary types. (not metafunctions)
+  //
+  // Returns Case(X)Type if Val==Case(X)Val; DefaultType otherwise.
+  //
+  template<class Value,
+           class Case0Val,
+           class Case1Val,
+           class Case2Val,
+           class Case0Type,
+           class Case1Type,
+           class Case2Type,
+           class DefaultType
+          >
+  struct ct_switch4
+  {
+    typedef mpl::identity<Case0Type> Case0TypeQ ;
+    typedef mpl::identity<Case1Type> Case1TypeQ ;
+
+    typedef equal_to<Value,Case0Val> is_case0 ;
+    typedef equal_to<Value,Case1Val> is_case1 ;
+    typedef equal_to<Value,Case2Val> is_case2 ;
+
+    typedef mpl::if_<is_case2,Case2Type,DefaultType> choose_2_3Q ;
+    typedef mpl::eval_if<is_case1,Case1TypeQ,choose_2_3Q> choose_1_2_3Q ;
+
+    typedef typename
+      mpl::eval_if<is_case0,Case0TypeQ,choose_1_2_3Q>::type
+        type ;
+  } ;
+
+
+
+
+  // Metafunction:
+  //
+  //   for_both<expr0,expr1,TT,TF,FT,FF>::type
+  //
+  // {exp0,expr1} are Boolean Integral Constants
+  // {TT,TF,FT,FF} are aribtrary types. (not metafunctions)
+  //
+  // According to the combined boolean value of 'expr0 && expr1', selects the corresponding type.
+  //
+  template<class expr0, class expr1, class TT, class TF, class FT, class FF>
+  struct for_both
+  {
+    typedef mpl::identity<TF> TF_Q ;
+    typedef mpl::identity<TT> TT_Q ;
+
+    typedef typename mpl::not_<expr0>::type not_expr0 ;
+    typedef typename mpl::not_<expr1>::type not_expr1 ;
+
+    typedef typename mpl::and_<expr0,expr1>::type     caseTT ;
+    typedef typename mpl::and_<expr0,not_expr1>::type caseTF ;
+    typedef typename mpl::and_<not_expr0,expr1>::type caseFT ;
+
+    typedef mpl::if_<caseFT,FT,FF>                    choose_FT_FF_Q ;
+    typedef mpl::eval_if<caseTF,TF_Q,choose_FT_FF_Q> choose_TF_FT_FF_Q ;
+
+    typedef typename mpl::eval_if<caseTT,TT_Q,choose_TF_FT_FF_Q>::type type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/numeric_cast_traits.hpp

@@ -0,0 +1,138 @@
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#if !defined(BOOST_NUMERIC_CONVERSION_DONT_USE_PREPROCESSED_FILES)
+
+    #include <boost/numeric/conversion/detail/preprocessed/numeric_cast_traits_common.hpp>
+	
+	#if !defined(BOOST_NO_LONG_LONG)
+        #include <boost/numeric/conversion/detail/preprocessed/numeric_cast_traits_long_long.hpp>
+	#endif
+	
+#else
+#if !BOOST_PP_IS_ITERATING
+
+    #include <boost/preprocessor/seq/elem.hpp>
+    #include <boost/preprocessor/seq/size.hpp>
+    #include <boost/preprocessor/iteration/iterate.hpp>
+    
+    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+        #pragma wave option(preserve: 2, line: 0, output: "preprocessed/numeric_cast_traits_common.hpp")
+    #endif
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+        #pragma wave option(preserve: 1)
+    #endif
+	
+	//! These are the assumed common built in fundamental types (not typedefs/macros.)
+	#define BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES() \
+        (char)                                            \
+        (signed char)                                     \
+        (unsigned char)                                   \
+        (short)                                           \
+        (unsigned short)                                  \
+        (int)                                             \
+        (unsigned int)                                    \
+        (long)                                            \
+        (unsigned long)                                   \
+        (float)                                           \
+        (double)                                          \
+        (long double)                                     \
+    /***/
+	
+    #define BOOST_NUMERIC_CONVERSION_SEQ_A() BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES()
+	#define BOOST_NUMERIC_CONVERSION_SEQ_B() BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES()
+
+namespace boost { namespace numeric {
+
+    #define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_NUMERIC_CONVERSION_SEQ_A())), <boost/numeric/conversion/detail/numeric_cast_traits.hpp>))
+    #include BOOST_PP_ITERATE()    
+
+}}//namespace boost::numeric;
+
+    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+        #pragma wave option(output: null)
+    #endif   
+	
+	#if ( defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES) ) || !defined(BOOST_NO_LONG_LONG)
+	
+	    #undef BOOST_NUMERIC_CONVERSION_SEQ_A
+	    #undef BOOST_NUMERIC_CONVERSION_SEQ_B
+
+	    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+            #pragma wave option(preserve: 2, line: 0, output: "preprocessed/numeric_cast_traits_long_long.hpp")
+        #endif
+
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+        #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+            #pragma wave option(preserve: 1)
+        #endif
+
+namespace boost { namespace numeric {
+
+    #define BOOST_NUMERIC_CONVERSION_SEQ_A() BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES()(boost::long_long_type)(boost::ulong_long_type)
+	#define BOOST_NUMERIC_CONVERSION_SEQ_B() (boost::long_long_type)(boost::ulong_long_type)
+    
+    #define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_NUMERIC_CONVERSION_SEQ_A())), <boost/numeric/conversion/detail/numeric_cast_traits.hpp>))
+    #include BOOST_PP_ITERATE()    
+
+}}//namespace boost::numeric;
+
+        #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+            #pragma wave option(output: null)
+        #endif   
+	
+	#endif
+		
+    #undef BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES
+	#undef BOOST_NUMERIC_CONVERSION_SEQ_A
+	#undef BOOST_NUMERIC_CONVERSION_SEQ_B
+    
+#elif BOOST_PP_ITERATION_DEPTH() == 1
+
+    #define BOOST_PP_ITERATION_PARAMS_2 (3, (0, BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_NUMERIC_CONVERSION_SEQ_B())), <boost/numeric/conversion/detail/numeric_cast_traits.hpp>))
+    #include BOOST_PP_ITERATE()
+
+#elif BOOST_PP_ITERATION_DEPTH() == 2
+
+    //! Generate default traits for the specified source and target.
+    #define BOOST_NUMERIC_CONVERSION_A BOOST_PP_FRAME_ITERATION(1)
+    #define BOOST_NUMERIC_CONVERSION_B BOOST_PP_FRAME_ITERATION(2)
+
+    template <>
+    struct numeric_cast_traits
+        <
+            BOOST_PP_SEQ_ELEM(BOOST_NUMERIC_CONVERSION_A, BOOST_NUMERIC_CONVERSION_SEQ_A())
+          , BOOST_PP_SEQ_ELEM(BOOST_NUMERIC_CONVERSION_B, BOOST_NUMERIC_CONVERSION_SEQ_B())
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<BOOST_PP_SEQ_ELEM(BOOST_NUMERIC_CONVERSION_B, BOOST_NUMERIC_CONVERSION_SEQ_B())> rounding_policy;
+    };     
+
+    #undef BOOST_NUMERIC_CONVERSION_A
+    #undef BOOST_NUMERIC_CONVERSION_B
+
+#endif//! Depth 2.
+#endif// BOOST_NUMERIC_CONVERSION_DONT_USE_PREPROCESSED_FILES

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/old_numeric_cast.hpp

@@ -0,0 +1,308 @@
+//  boost cast.hpp header file  ----------------------------------------------//
+
+//  (C) Copyright Kevlin Henney and Dave Abrahams 1999.
+//  Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/conversion for Documentation.
+
+//  Revision History
+//  02 Jun 14  Remove VC6 workarounds.
+//  16 Jul 11  Bugfixes for VC6.
+//  23 JUN 05  Code extracted from /boost/cast.hpp into this new header.
+//             Keeps this legacy version of numeric_cast<> for old compilers
+//             wich can't compile the new version in /boost/numeric/conversion/cast.hpp
+//             (Fernando Cacciola)
+//  02 Apr 01  Removed BOOST_NO_LIMITS workarounds and included
+//             <boost/limits.hpp> instead (the workaround did not
+//             actually compile when BOOST_NO_LIMITS was defined in
+//             any case, so we loose nothing). (John Maddock)
+//  21 Jan 01  Undid a bug I introduced yesterday. numeric_cast<> never
+//             worked with stock GCC; trying to get it to do that broke
+//             vc-stlport.
+//  20 Jan 01  Moved BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS to config.hpp.
+//             Removed unused BOOST_EXPLICIT_TARGET macro. Moved
+//             boost::detail::type to boost/type.hpp. Made it compile with
+//             stock gcc again (Dave Abrahams)
+//  29 Nov 00  Remove nested namespace cast, cleanup spacing before Formal
+//             Review (Beman Dawes)
+//  19 Oct 00  Fix numeric_cast for floating-point types (Dave Abrahams)
+//  15 Jul 00  Suppress numeric_cast warnings for GCC, Borland and MSVC
+//             (Dave Abrahams)
+//  30 Jun 00  More MSVC6 wordarounds.  See comments below.  (Dave Abrahams)
+//  28 Jun 00  Removed implicit_cast<>.  See comment below. (Beman Dawes)
+//  27 Jun 00  More MSVC6 workarounds
+//  15 Jun 00  Add workarounds for MSVC6
+//   2 Feb 00  Remove bad_numeric_cast ";" syntax error (Doncho Angelov)
+//  26 Jan 00  Add missing throw() to bad_numeric_cast::what(0 (Adam Levar)
+//  29 Dec 99  Change using declarations so usages in other namespaces work
+//             correctly (Dave Abrahams)
+//  23 Sep 99  Change polymorphic_downcast assert to also detect M.I. errors
+//             as suggested Darin Adler and improved by Valentin Bonnard.
+//   2 Sep 99  Remove controversial asserts, simplify, rename.
+//  30 Aug 99  Move to cast.hpp, replace value_cast with numeric_cast,
+//             place in nested namespace.
+//   3 Aug 99  Initial version
+
+#ifndef BOOST_OLD_NUMERIC_CAST_HPP
+#define BOOST_OLD_NUMERIC_CAST_HPP
+
+# include <boost/config.hpp>
+# include <cassert>
+# include <typeinfo>
+# include <boost/type.hpp>
+# include <boost/limits.hpp>
+# include <boost/numeric/conversion/converter_policies.hpp>
+
+namespace boost
+{
+  using numeric::bad_numeric_cast;
+
+//  LEGACY numeric_cast [only for some old broken compilers] --------------------------------------//
+
+//  Contributed by Kevlin Henney
+
+//  numeric_cast  ------------------------------------------------------------//
+
+#if !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || defined(BOOST_SGI_CPP_LIMITS)
+
+    namespace detail
+    {
+      template <class T>
+      struct signed_numeric_limits : std::numeric_limits<T>
+      {
+             static inline T min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+         {
+             return (std::numeric_limits<T>::min)() >= 0
+                     // unary minus causes integral promotion, thus the static_cast<>
+                     ? static_cast<T>(-(std::numeric_limits<T>::max)())
+                     : (std::numeric_limits<T>::min)();
+         };
+      };
+
+      // Move to namespace boost in utility.hpp?
+      template <class T, bool specialized>
+      struct fixed_numeric_limits_base
+          : public if_true< std::numeric_limits<T>::is_signed >
+           ::BOOST_NESTED_TEMPLATE then< signed_numeric_limits<T>,
+                            std::numeric_limits<T>
+                   >::type
+      {};
+
+      template <class T>
+      struct fixed_numeric_limits
+          : fixed_numeric_limits_base<T,(std::numeric_limits<T>::is_specialized)>
+      {};
+
+# ifdef BOOST_HAS_LONG_LONG
+      // cover implementations which supply no specialization for long
+      // long / unsigned long long. Not intended to be full
+      // numeric_limits replacements, but good enough for numeric_cast<>
+      template <>
+      struct fixed_numeric_limits_base< ::boost::long_long_type, false>
+      {
+          BOOST_STATIC_CONSTANT(bool, is_specialized = true);
+          BOOST_STATIC_CONSTANT(bool, is_signed = true);
+          static  ::boost::long_long_type max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+          {
+#  ifdef LONGLONG_MAX
+              return LONGLONG_MAX;
+#  else
+              return 9223372036854775807LL; // hope this is portable
+#  endif
+          }
+
+          static  ::boost::long_long_type min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+          {
+#  ifdef LONGLONG_MIN
+              return LONGLONG_MIN;
+#  else
+               return -( 9223372036854775807LL )-1; // hope this is portable
+#  endif
+          }
+      };
+
+      template <>
+      struct fixed_numeric_limits_base< ::boost::ulong_long_type, false>
+      {
+          BOOST_STATIC_CONSTANT(bool, is_specialized = true);
+          BOOST_STATIC_CONSTANT(bool, is_signed = false);
+          static  ::boost::ulong_long_type max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+          {
+#  ifdef ULONGLONG_MAX
+              return ULONGLONG_MAX;
+#  else
+              return 0xffffffffffffffffULL; // hope this is portable
+#  endif
+          }
+
+          static  ::boost::ulong_long_type min BOOST_PREVENT_MACRO_SUBSTITUTION () { return 0; }
+      };
+# endif
+    } // namespace detail
+
+// less_than_type_min -
+  //    x_is_signed should be numeric_limits<X>::is_signed
+  //    y_is_signed should be numeric_limits<Y>::is_signed
+  //    y_min should be numeric_limits<Y>::min()
+  //
+  //    check(x, y_min) returns true iff x < y_min without invoking comparisons
+  //    between signed and unsigned values.
+  //
+  //    "poor man's partial specialization" is in use here.
+    template <bool x_is_signed, bool y_is_signed>
+    struct less_than_type_min
+    {
+        template <class X, class Y>
+        static bool check(X x, Y y_min)
+            { return x < y_min; }
+    };
+
+    template <>
+    struct less_than_type_min<false, true>
+    {
+        template <class X, class Y>
+        static bool check(X, Y)
+            { return false; }
+    };
+
+    template <>
+    struct less_than_type_min<true, false>
+    {
+        template <class X, class Y>
+        static bool check(X x, Y)
+            { return x < 0; }
+    };
+
+  // greater_than_type_max -
+  //    same_sign should be:
+  //            numeric_limits<X>::is_signed == numeric_limits<Y>::is_signed
+  //    y_max should be numeric_limits<Y>::max()
+  //
+  //    check(x, y_max) returns true iff x > y_max without invoking comparisons
+  //    between signed and unsigned values.
+  //
+  //    "poor man's partial specialization" is in use here.
+    template <bool same_sign, bool x_is_signed>
+    struct greater_than_type_max;
+
+    template<>
+    struct greater_than_type_max<true, true>
+    {
+        template <class X, class Y>
+        static inline bool check(X x, Y y_max)
+            { return x > y_max; }
+    };
+
+    template <>
+    struct greater_than_type_max<false, true>
+    {
+        // What does the standard say about this? I think it's right, and it
+        // will work with every compiler I know of.
+        template <class X, class Y>
+        static inline bool check(X x, Y)
+            { return x >= 0 && static_cast<X>(static_cast<Y>(x)) != x; }
+    };
+
+    template<>
+    struct greater_than_type_max<true, false>
+    {
+        template <class X, class Y>
+        static inline bool check(X x, Y y_max)
+            { return x > y_max; }
+    };
+
+    template <>
+    struct greater_than_type_max<false, false>
+    {
+        // What does the standard say about this? I think it's right, and it
+        // will work with every compiler I know of.
+        template <class X, class Y>
+        static inline bool check(X x, Y)
+            { return static_cast<X>(static_cast<Y>(x)) != x; }
+    };
+
+#else // use #pragma hacks if available
+
+  namespace detail
+  {
+# if BOOST_MSVC
+#  pragma warning(push)
+#  pragma warning(disable : 4018)
+#  pragma warning(disable : 4146)
+#elif defined(BOOST_BORLANDC)
+#  pragma option push -w-8041
+# endif
+
+       // Move to namespace boost in utility.hpp?
+       template <class T>
+       struct fixed_numeric_limits : public std::numeric_limits<T>
+       {
+           static inline T min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+           {
+               return std::numeric_limits<T>::is_signed && (std::numeric_limits<T>::min)() >= 0
+                   ? T(-(std::numeric_limits<T>::max)()) : (std::numeric_limits<T>::min)();
+           }
+       };
+
+# if BOOST_MSVC
+#  pragma warning(pop)
+#elif defined(BOOST_BORLANDC)
+#  pragma option pop
+# endif
+  } // namespace detail
+
+#endif
+
+    template<typename Target, typename Source>
+    inline Target numeric_cast(Source arg)
+    {
+        // typedefs abbreviating respective trait classes
+        typedef detail::fixed_numeric_limits<Source> arg_traits;
+        typedef detail::fixed_numeric_limits<Target> result_traits;
+
+#if defined(BOOST_STRICT_CONFIG) \
+    || (!defined(__HP_aCC) || __HP_aCC > 33900) \
+         && (!defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) \
+             || defined(BOOST_SGI_CPP_LIMITS))
+        // typedefs that act as compile time assertions
+        // (to be replaced by boost compile time assertions
+        // as and when they become available and are stable)
+        typedef bool argument_must_be_numeric[arg_traits::is_specialized];
+        typedef bool result_must_be_numeric[result_traits::is_specialized];
+
+        const bool arg_is_signed = arg_traits::is_signed;
+        const bool result_is_signed = result_traits::is_signed;
+        const bool same_sign = arg_is_signed == result_is_signed;
+
+        if (less_than_type_min<arg_is_signed, result_is_signed>::check(arg, (result_traits::min)())
+            || greater_than_type_max<same_sign, arg_is_signed>::check(arg, (result_traits::max)())
+            )
+
+#else // We need to use #pragma hacks if available
+
+# if BOOST_MSVC
+#  pragma warning(push)
+#  pragma warning(disable : 4018)
+#elif defined(BOOST_BORLANDC)
+#pragma option push -w-8012
+# endif
+        if ((arg < 0 && !result_traits::is_signed)  // loss of negative range
+             || (arg_traits::is_signed && arg < (result_traits::min)())  // underflow
+             || arg > (result_traits::max)())            // overflow
+# if BOOST_MSVC
+#  pragma warning(pop)
+#elif defined(BOOST_BORLANDC)
+#pragma option pop
+# endif
+#endif
+        {
+            throw bad_numeric_cast();
+        }
+        return static_cast<Target>(arg);
+    } // numeric_cast
+
+} // namespace boost
+
+#endif  // BOOST_OLD_NUMERIC_CAST_HPP

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/preprocessed/numeric_cast_traits_long_long.hpp

@@ -0,0 +1,347 @@
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+namespace boost { namespace numeric {
+    
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            boost::long_long_type
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            boost::long_long_type
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            boost::ulong_long_type
+          , boost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            boost::ulong_long_type
+          , boost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<boost::ulong_long_type> rounding_policy;
+    }; 
+}}

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/sign_mixture.hpp

@@ -0,0 +1,72 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_SIGN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_SIGN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/config.hpp"
+#include "boost/limits.hpp"
+
+#include "boost/numeric/conversion/sign_mixture_enum.hpp"
+#include "boost/numeric/conversion/detail/meta.hpp"
+
+#include "boost/mpl/integral_c.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+  // Integral Constants for 'SignMixture'
+  typedef mpl::integral_c<sign_mixture_enum, unsigned_to_unsigned> unsig2unsig_c ;
+  typedef mpl::integral_c<sign_mixture_enum, signed_to_signed>     sig2sig_c ;
+  typedef mpl::integral_c<sign_mixture_enum, signed_to_unsigned>   sig2unsig_c ;
+  typedef mpl::integral_c<sign_mixture_enum, unsigned_to_signed>   unsig2sig_c ;
+
+  // Metafunction:
+  //
+  //   get_sign_mixture<T,S>::type
+  //
+  // Selects the appropriate SignMixture Integral Constant for the combination T,S.
+  //
+  template<class T,class S>
+  struct get_sign_mixture
+  {
+    typedef mpl::bool_< ::std::numeric_limits<S>::is_signed > S_signed ;
+    typedef mpl::bool_< ::std::numeric_limits<T>::is_signed > T_signed ;
+
+    typedef typename
+      for_both<S_signed, T_signed, sig2sig_c, sig2unsig_c, unsig2sig_c, unsig2unsig_c>::type
+        type ;
+  } ;
+
+  // Metafunction:
+  //
+  //   for_sign_mixture<SignMixture,Sig2Sig,Sig2Unsig,Unsig2Sig,Unsig2Unsig>::type
+  //
+  // {SignMixture} is one of the Integral Constants for SignMixture, declared above.
+  // {Sig2Sig,Sig2Unsig,Unsig2Sig,Unsig2Unsig} are aribtrary types. (not metafunctions)
+  //
+  // According to the value of 'SignMixture', selects the corresponding type.
+  //
+  template<class SignMixture, class Sig2Sig, class Sig2Unsig, class Unsig2Sig, class Unsig2Unsig>
+  struct for_sign_mixture
+  {
+    typedef typename
+      ct_switch4<SignMixture
+                 , sig2sig_c, sig2unsig_c, unsig2sig_c  // default
+                 , Sig2Sig  , Sig2Unsig  , Unsig2Sig  , Unsig2Unsig
+                >::type
+        type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/detail/udt_builtin_mixture.hpp

@@ -0,0 +1,69 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/type_traits/is_arithmetic.hpp"
+
+#include "boost/numeric/conversion/udt_builtin_mixture_enum.hpp"
+#include "boost/numeric/conversion/detail/meta.hpp"
+
+#include "boost/mpl/integral_c.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+  // Integral Constants for 'UdtMixture'
+  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_builtin> builtin2builtin_c ;
+  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_udt>     builtin2udt_c ;
+  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_builtin>     udt2builtin_c ;
+  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_udt>         udt2udt_c ;
+
+  // Metafunction:
+  //
+  //   for_udt_mixture<UdtMixture,BuiltIn2BuiltIn,BuiltIn2Udt,Udt2BuiltIn,Udt2Udt>::type
+  //
+  // {UdtMixture} is one of the Integral Constants for UdMixture, declared above.
+  // {BuiltIn2BuiltIn,BuiltIn2Udt,Udt2BuiltIn,Udt2Udt} are aribtrary types. (not metafunctions)
+  //
+  // According to the value of 'UdtMixture', selects the corresponding type.
+  //
+  template<class UdtMixture, class BuiltIn2BuiltIn, class BuiltIn2Udt, class Udt2BuiltIn, class Udt2Udt>
+  struct for_udt_builtin_mixture
+  {
+    typedef typename
+      ct_switch4<UdtMixture
+                 , builtin2builtin_c, builtin2udt_c, udt2builtin_c // default
+                 , BuiltIn2BuiltIn  , BuiltIn2Udt  , Udt2BuiltIn  , Udt2Udt
+                >::type
+        type ;
+  } ;
+
+  // Metafunction:
+  //
+  //   get_udt_mixture<T,S>::type
+  //
+  // Selects the appropriate UdtMixture Integral Constant for the combination T,S.
+  //
+  template<class T,class S>
+  struct get_udt_builtin_mixture
+  {
+    typedef is_arithmetic<S> S_builtin ;
+    typedef is_arithmetic<T> T_builtin ;
+
+    typedef typename
+      for_both<S_builtin, T_builtin, builtin2builtin_c, builtin2udt_c, udt2builtin_c, udt2udt_c>::type
+        type ;
+  } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/int_float_mixture.hpp

@@ -0,0 +1,30 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/numeric/conversion/detail/int_float_mixture.hpp"
+
+namespace boost { namespace numeric
+{
+
+template<class T, class S>
+struct int_float_mixture
+  : convdetail::get_int_float_mixture<  BOOST_DEDUCED_TYPENAME remove_cv<T>::type
+                                       ,BOOST_DEDUCED_TYPENAME remove_cv<S>::type
+                                     >::type {} ;
+
+} } // namespace boost::numeric
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/int_float_mixture_enum.hpp

@@ -0,0 +1,29 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_INT_FLOAT_MIXTURE_ENUM_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_INT_FLOAT_MIXTURE_ENUM_FLC_12NOV2002_HPP
+
+namespace boost { namespace numeric
+{
+  enum int_float_mixture_enum
+  {
+     integral_to_integral
+    ,integral_to_float
+    ,float_to_integral
+    ,float_to_float
+  } ;
+
+} } // namespace boost::numeric
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/is_subranged.hpp

@@ -0,0 +1,27 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_IS_SUBRANGED_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_IS_SUBRANGED_FLC_12NOV2002_HPP
+
+#include "boost/numeric/conversion/detail/is_subranged.hpp"
+
+namespace boost { namespace numeric {
+
+template<class T, class S>
+struct is_subranged
+  : convdetail::get_is_subranged<  BOOST_DEDUCED_TYPENAME remove_cv<T>::type
+                                  ,BOOST_DEDUCED_TYPENAME remove_cv<S>::type
+                                >::type {} ;
+
+} } // namespace boost::numeric
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/numeric_cast_traits.hpp

@@ -0,0 +1,31 @@
+//
+//! Copyright (c) 2011
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+#ifndef BOOST_NUMERIC_CAST_TRAITS_HPP
+#define BOOST_NUMERIC_CAST_TRAITS_HPP
+
+#include <boost/numeric/conversion/converter_policies.hpp>
+
+namespace boost { namespace numeric {
+
+    template <typename Target, typename Source, typename EnableIf = void>
+    struct numeric_cast_traits
+    {
+        typedef def_overflow_handler    overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<Source>           rounding_policy;
+    };
+
+}}//namespace boost::numeric;
+
+#if !defined( BOOST_NUMERIC_CONVERSION_RELAX_BUILT_IN_CAST_TRAITS )
+#include <boost/cstdint.hpp>
+#include <boost/numeric/conversion/detail/numeric_cast_traits.hpp>
+#endif//!defined BOOST_NUMERIC_CONVERSION_RELAX_BUILT_IN_CAST_TRAITS
+
+#endif//BOOST_NUMERIC_CAST_TRAITS_HPP

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/sign_mixture.hpp

@@ -0,0 +1,30 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_SIGN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_SIGN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/numeric/conversion/detail/sign_mixture.hpp"
+
+namespace boost { namespace numeric
+{
+
+template<class T, class S>
+struct sign_mixture
+  : convdetail::get_sign_mixture<  BOOST_DEDUCED_TYPENAME remove_cv<T>::type
+                                  ,BOOST_DEDUCED_TYPENAME remove_cv<S>::type
+                                >::type {} ;
+
+} } // namespace boost::numeric
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/sign_mixture_enum.hpp

@@ -0,0 +1,29 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_SIGN_MIXTURE_ENUM_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_SIGN_MIXTURE_ENUM_FLC_12NOV2002_HPP
+
+namespace boost { namespace numeric
+{
+  enum sign_mixture_enum
+  {
+     unsigned_to_unsigned
+    ,signed_to_signed
+    ,signed_to_unsigned
+    ,unsigned_to_signed
+  } ;
+
+} } // namespace boost::numeric
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/udt_builtin_mixture.hpp

@@ -0,0 +1,28 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/numeric/conversion/detail/udt_builtin_mixture.hpp"
+
+namespace boost { namespace numeric
+{
+
+template<class T, class S>
+struct udt_builtin_mixture
+  : convdetail::get_udt_builtin_mixture<  BOOST_DEDUCED_TYPENAME remove_cv<T>::type
+                                         ,BOOST_DEDUCED_TYPENAME remove_cv<S>::type
+                                       >::type {} ;
+
+} } // namespace boost::numeric
+
+#endif
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/include/boost/numeric/conversion/udt_builtin_mixture_enum.hpp

@@ -0,0 +1,26 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_UDT_BUILTIN_MIXTURE_ENUM_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_UDT_BUILTIN_MIXTURE_ENUM_FLC_12NOV2002_HPP
+
+namespace boost { namespace numeric
+{
+  enum udt_builtin_mixture_enum
+  {
+     builtin_to_builtin
+    ,builtin_to_udt
+    ,udt_to_builtin
+    ,udt_to_udt
+  } ;
+
+} } // namespace boost::numeric
+
+#endif
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/index.html

@@ -0,0 +1,13 @@
+<html>
+<head>
+<meta http-equiv="refresh" content="0; URL=doc/html/index.html">
+</head>
+<body>
+Automatic redirection failed, please go to
+<a href="doc/html/index.html">doc/index.html</a>.&nbsp;<hr>
+<p><EFBFBD> Copyright Beman Dawes, 2001</p>
+<p>Distributed under the Boost Software License, Version 1.0. (See accompanying 
+file <a href="../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy 
+at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
+</body>
+</html>

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/meta/libraries.json

@@ -0,0 +1,17 @@
+{
+    "key": "numeric/conversion",
+    "name": "Numeric Conversion",
+    "authors": [
+        "Fernando Cacciola"
+    ],
+    "description": "Optimized Policy-based Numeric Conversions.",
+    "category": [
+        "Math",
+        "Miscellaneous"
+    ],
+    "maintainers": [
+        "Fernando Cacciola <fernando_cacciola -at- ciudad.com.ar>",
+        "Brandon Kohn <blkohn -at- hotmail.com>"
+    ],
+    "cxxstd": "03"
+}

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/Jamfile.v2

@@ -0,0 +1,42 @@
+# Boost Numeric Conversion Library test Jamfile
+#
+# Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+#
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+#
+# import testing ;
+
+project numeric_conversion_unit_tests
+    :
+    requirements
+        <include>.
+        <toolset>gcc:<cxxflags>"-ftemplate-depth-300 -g0"
+        <toolset>darwin:<cxxflags>"-ftemplate-depth-300 -g0"
+    ;
+
+test-suite minimal 
+    :
+        [ run bounds_test.cpp ]
+        [ run traits_test.cpp : : : <toolset>msvc:<cxxflags>/bigobj ]
+        [ run converter_test.cpp ]
+        [ run udt_support_test.cpp ]
+        [ run numeric_cast_test.cpp ]
+        [ run udt_example_0.cpp ]
+        [ run numeric_cast_traits_test.cpp ]
+    ;
+
+test-suite full 
+    :
+        minimal
+        [ compile-fail compile_fail/built_in_numeric_cast_traits.cpp ] 
+    ;
+
+test-suite extra ;
+
+explicit minimal ;
+explicit extra ;
+
+# support the old test target
+test-suite numeric/conversion : full ;

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/bounds_test.cpp

@@ -0,0 +1,95 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#include<typeinfo>
+#include<iostream>
+#include<iomanip>    
+
+#include "boost/numeric/conversion/bounds.hpp"
+
+#ifdef BOOST_BORLANDC
+#pragma hdrstop
+#endif
+
+#include "test_helpers.cpp"
+
+using namespace std ;
+using namespace boost ;
+using namespace numeric ;
+
+// Test the fields of boost::numeric::bounds<> against the expected values.
+//
+template<class T>
+void test_bounds( T expected_lowest, T expected_highest, T expected_smallest )
+{
+  T lowest   = bounds<T>::lowest  () ;
+  T highest  = bounds<T>::highest () ;
+  T smallest = bounds<T>::smallest() ;
+
+  BOOST_TEST_EQ(lowest, expected_lowest);
+
+  BOOST_TEST_EQ(highest, expected_highest);
+
+  BOOST_TEST_EQ(smallest, expected_smallest);
+}
+
+
+template<class T>
+void test_bounds_integer( MATCH_FNTPL_ARG(T) )
+{
+  test_bounds(  numeric_limits<T>::min BOOST_PREVENT_MACRO_SUBSTITUTION()
+              , numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION()
+              , static_cast<T>(1)
+             ) ;
+}
+template<class T>
+void test_bounds_float( MATCH_FNTPL_ARG(T))
+{
+  test_bounds(  -numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+               , numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+               , numeric_limits<T>::min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+             ) ;
+}
+
+void test_bounds_integers()
+{
+  test_bounds_integer( SET_FNTPL_ARG(unsigned char) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(signed char) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(char) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(unsigned short) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(short) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(unsigned int) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(int) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(unsigned long) ) ;
+  test_bounds_integer( SET_FNTPL_ARG(long) ) ;
+}
+
+void test_bounds_floats()
+{
+  test_bounds_float( SET_FNTPL_ARG(float) );
+  test_bounds_float( SET_FNTPL_ARG(double) );
+  test_bounds_float( SET_FNTPL_ARG(long double) );
+}
+
+void test_bounds()
+{
+  test_bounds_integers() ;
+  test_bounds_floats  () ;
+}
+
+
+int main( )
+{
+  cout << setprecision( std::numeric_limits<long double>::digits10 ) ;
+
+  test_bounds();
+
+  return boost::report_errors();
+}
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/compile_fail/built_in_numeric_cast_traits.cpp

@@ -0,0 +1,115 @@
+//
+//! Copyright (c) 2011
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/operators.hpp>
+#include <boost/numeric/conversion/cast.hpp>
+#include <boost/preprocessor/control/iif.hpp>
+#include <boost/preprocessor/comparison/less.hpp>
+#include <boost/preprocessor/comparison/not_equal.hpp>
+#include <boost/preprocessor/repetition/for.hpp>
+#include <boost/preprocessor/tuple/elem.hpp>
+#include <boost/preprocessor/seq/elem.hpp>
+#include <boost/preprocessor/seq/size.hpp>
+
+//! Generate default traits for the specified source and target.
+#define BOOST_NUMERIC_CONVERSION_GENERATE_CAST_TRAITS(r, state)    \
+template <>                                                        \
+struct numeric_cast_traits<                                        \
+    BOOST_PP_SEQ_ELEM( BOOST_PP_TUPLE_ELEM(4,0,state)              \
+                     , BOOST_PP_TUPLE_ELEM(4,3,state) )            \
+  , BOOST_PP_TUPLE_ELEM(4,2,state)>                                \
+{                                                                  \
+    typedef def_overflow_handler    overflow_policy;               \
+    typedef UseInternalRangeChecker range_checking_policy;         \
+    typedef Trunc<BOOST_PP_TUPLE_ELEM(4,2,state)> rounding_policy; \
+};                                                                 \
+/***/
+    
+#define BOOST_NUMERIC_CONVERSION_TUPLE_SENTINAL(r, state) \
+   BOOST_PP_LESS                                          \
+   (                                                      \
+      BOOST_PP_TUPLE_ELEM(4,0,state)                      \
+    , BOOST_PP_TUPLE_ELEM(4,1,state)                      \
+   )                                                      \
+/***/
+
+#define BOOST_NUMERIC_CONVERSION_INC_OP(r, state)    \
+     (                                               \
+        BOOST_PP_INC(BOOST_PP_TUPLE_ELEM(4,0,state)) \
+      , BOOST_PP_TUPLE_ELEM(4,1,state)               \
+      , BOOST_PP_TUPLE_ELEM(4,2,state)               \
+      , BOOST_PP_TUPLE_ELEM(4,3,state)               \
+     )                                               \
+/***/
+
+#define BOOST_NUMERIC_CONVERSION_GENERATE_CAST_TARGET_STEP(r, state)                         \
+    BOOST_PP_FOR                                                                             \
+    (                                                                                        \
+        (                                                                                    \
+            0                                                                                \
+          , BOOST_PP_TUPLE_ELEM(4,1,state)                                                   \
+          , BOOST_PP_SEQ_ELEM(BOOST_PP_TUPLE_ELEM(4,0,state),BOOST_PP_TUPLE_ELEM(4,2,state)) \
+          , BOOST_PP_TUPLE_ELEM(4,2,state)                                                   \
+        )                                                                                    \
+      , BOOST_NUMERIC_CONVERSION_TUPLE_SENTINAL                                              \
+      , BOOST_NUMERIC_CONVERSION_INC_OP                                                      \
+      , BOOST_NUMERIC_CONVERSION_GENERATE_CAST_TRAITS                                        \
+    )                                                                                        \
+/***/
+
+#define BOOST_NUMERIC_CONVERSION_GENERATE_BUILTIN_CAST_TRAITS(types) \
+    BOOST_PP_FOR                                                     \
+    (                                                                \
+        (0,BOOST_PP_SEQ_SIZE(types),types,_)                         \
+      , BOOST_NUMERIC_CONVERSION_TUPLE_SENTINAL                      \
+      , BOOST_NUMERIC_CONVERSION_INC_OP                              \
+      , BOOST_NUMERIC_CONVERSION_GENERATE_CAST_TARGET_STEP           \
+    )                                                                \
+/***/
+
+namespace boost { namespace numeric {
+#if !defined( BOOST_NO_INT64_T )
+    //! Generate the specializations for the built-in types.
+    BOOST_NUMERIC_CONVERSION_GENERATE_BUILTIN_CAST_TRAITS
+    (
+        (char)
+        (boost::int8_t)
+        (boost::uint8_t)
+        (boost::int16_t)
+        (boost::uint16_t)
+        (boost::int32_t)
+        (boost::uint32_t)
+        (boost::int64_t)
+        (boost::uint64_t)
+        (float)
+        (double)
+        (long double)
+    )
+#else
+    BOOST_NUMERIC_CONVERSION_GENERATE_BUILTIN_CAST_TRAITS
+    (
+        (char)
+        (boost::int8_t)
+        (boost::uint8_t)
+        (boost::int16_t)
+        (boost::uint16_t)
+        (boost::int32_t)
+        (boost::uint32_t)
+        (float)
+        (double)
+        (long double)
+    )
+#endif
+}}//namespace boost::numeric;
+
+#undef BOOST_NUMERIC_CONVERSION_GENERATE_BUILTIN_CAST_TRAITS
+#undef BOOST_NUMERIC_CONVERSION_GENERATE_CAST_TARGET_STEP
+#undef BOOST_NUMERIC_CONVERSION_INC_OP
+#undef BOOST_NUMERIC_CONVERSION_TUPLE_SENTINAL
+#undef BOOST_NUMERIC_CONVERSION_GENERATE_CAST_TRAITS

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/converter_test.cpp

@@ -0,0 +1,562 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+//
+#include<cstdlib>
+#include<iostream>
+#include<iomanip>
+#include<string>
+#include<typeinfo>
+#include<vector>
+#include<algorithm>
+
+#include "boost/config.hpp"
+#include "boost/cstdint.hpp"
+#include "boost/utility.hpp"
+
+//
+// Borland 5.5 lacks the following math overloads
+//
+#if BOOST_WORKAROUND(BOOST_BORLANDC, <= 0x551)
+namespace std
+{
+
+inline float       ceil  (float       x) { return std::ceil  ( static_cast<double>(x)); }
+inline float       floor (float       x) { return std::floor ( static_cast<double>(x)); }
+inline long double ceil  (long double x) { return std::ceill (x); }
+inline long double floor (long double x) { return std::floorl(x); }
+
+} // namespace std
+#endif
+
+#include "boost/numeric/conversion/converter.hpp"
+#include "boost/numeric/conversion/cast.hpp"
+
+#ifdef BOOST_BORLANDC
+#pragma hdrstop
+#endif
+
+#include "test_helpers.cpp"
+#include "test_helpers2.cpp"
+#include "test_helpers3.cpp"
+
+#include "boost/mpl/alias.hpp"
+
+using std::cout ;
+
+// A generic 'abs' function.
+template<class N> inline N absG ( N v )
+{
+  return v < static_cast<N>(0) ? static_cast<N>(-v) : v ;
+}
+template<> inline unsigned char  absG<unsigned char>  ( unsigned char  v ) { return v ; }
+template<> inline unsigned short absG<unsigned short> ( unsigned short v ) { return v ; }
+template<> inline unsigned int   absG<unsigned int>   ( unsigned int   v ) { return v ; }
+template<> inline unsigned long  absG<unsigned long>  ( unsigned long  v ) { return v ; }
+
+template<class T> inline void unused_variable ( T const& ) {}
+//
+// The following function excersizes specific conversions that cover
+// usual and boundary cases for each relevant combination.
+//
+void test_conversions()
+{
+  using namespace boost ;
+  using namespace numeric ;
+
+  // To help the test found possible bugs a random numbers are used.
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+  using std::rand ;
+#endif
+
+  boost::int16_t v16 ;
+  boost::uint16_t uv16 ;
+  boost::int32_t v32 ;
+  boost::uint32_t uv32 ;
+
+  volatile float  fv ; // avoid this to be cached internally in some fpu register
+  volatile double dv ; // avoid this to be cached internally in some fpu register
+
+  //
+  // sample (representative) conversions:
+  //
+  cout << "Testing representative conversions\n";
+
+  // integral to integral
+
+    // signed to signed
+
+      // not subranged
+      v16 = static_cast<boost::int16_t>(rand());
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::int32_t,boost::int16_t,v16,v16);
+
+      // subranged
+      v16 = static_cast<boost::int16_t>(rand());
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::int16_t,boost::int32_t,v16,v16);
+      TEST_POS_OVERFLOW_CONVERSION_DEF(boost::int16_t,boost::int32_t,bounds<boost::int16_t>::highest() + boost::int32_t(1) ) ;
+      TEST_NEG_OVERFLOW_CONVERSION_DEF(boost::int16_t,boost::int32_t,bounds<boost::int16_t>::lowest()  - boost::int32_t(1) ) ;
+
+    // signed to unsigned
+
+      // subranged
+      v32 = absG(static_cast<boost::int32_t>(rand()));
+      v16 = absG(static_cast<boost::int16_t>(rand()));
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::uint32_t,boost::int32_t,v32,v32);
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::uint16_t,boost::int32_t,v16,v16);
+      TEST_POS_OVERFLOW_CONVERSION_DEF(boost::uint16_t,boost::int32_t,bounds<boost::uint16_t>::highest() + boost::int32_t(1) ) ;
+      TEST_NEG_OVERFLOW_CONVERSION_DEF(boost::uint32_t,boost::int32_t,boost::int32_t(-1) ) ;
+
+    // unsigned to signed
+
+      // not subranged
+      v32 = absG(static_cast<boost::int32_t>(rand()));
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::int32_t,boost::uint32_t,v32,v32);
+
+      // subranged
+      v16 = absG(static_cast<boost::int16_t>(rand()));
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::int16_t,boost::uint32_t,v16,v16);
+      TEST_POS_OVERFLOW_CONVERSION_DEF(boost::int32_t,boost::uint32_t,bounds<boost::uint32_t>::highest() ) ;
+      TEST_POS_OVERFLOW_CONVERSION_DEF(boost::int16_t,boost::uint32_t,bounds<boost::uint32_t>::highest() ) ;
+
+    // unsigned to unsigned
+
+      // not subranged
+      uv16 = static_cast<boost::uint16_t>(rand());
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::uint32_t,boost::uint16_t,uv16,uv16);
+
+      // subranged
+      uv16 = static_cast<boost::uint16_t>(rand());
+      TEST_SUCCEEDING_CONVERSION_DEF(boost::uint16_t,boost::uint32_t,uv16,uv16);
+      TEST_POS_OVERFLOW_CONVERSION_DEF(boost::uint16_t,boost::uint32_t,bounds<boost::uint32_t>::highest() ) ;
+
+  // integral to float
+
+     // from signed integral
+     v32 = static_cast<boost::int32_t>(rand());
+     TEST_SUCCEEDING_CONVERSION_DEF(double,boost::int32_t,v32,v32);
+
+     // from uint32_tegral
+     uv32 = static_cast<boost::uint32_t>(rand());
+     TEST_SUCCEEDING_CONVERSION_DEF(double,boost::uint32_t,uv32,uv32);
+
+  // float to integral
+
+     // to signed integral
+     v32 =  static_cast<boost::int32_t>(rand());
+     TEST_SUCCEEDING_CONVERSION_DEF(boost::int32_t,double,v32,v32);
+
+     dv = static_cast<double>(bounds<boost::uint32_t>::highest()) + 1.0 ;
+     TEST_POS_OVERFLOW_CONVERSION_DEF(boost::int32_t,double,dv) ;
+     TEST_NEG_OVERFLOW_CONVERSION_DEF(boost::int32_t,double,-dv) ;
+
+  // float to float
+
+    // not subranged
+    fv = static_cast<float>(rand()) / static_cast<float>(3) ;
+    TEST_SUCCEEDING_CONVERSION_DEF(double,float,fv,fv);
+
+
+    // subranged
+    fv = static_cast<float>(rand()) / static_cast<float>(3) ;
+    TEST_SUCCEEDING_CONVERSION_DEF(float,double,fv,fv);
+    TEST_POS_OVERFLOW_CONVERSION_DEF(float,double,bounds<double>::highest()) ;
+    TEST_NEG_OVERFLOW_CONVERSION_DEF(float,double,bounds<double>::lowest ()) ;
+}
+
+// Custom OverflowHandler
+struct custom_overflow_handler
+{
+  void operator() ( boost::numeric::range_check_result r )
+  {
+    if ( r == boost::numeric::cNegOverflow )
+      cout << "negative_overflow detected!\n" ;
+    else if ( r == boost::numeric::cPosOverflow )
+           cout << "positive_overflow detected!\n" ;
+  }
+} ;
+
+template<class T, class S,class OverflowHandler>
+void test_overflow_handler( MATCH_FNTPL_ARG(T), MATCH_FNTPL_ARG(S), MATCH_FNTPL_ARG(OverflowHandler),
+                            PostCondition pos,
+                            PostCondition neg
+                          )
+{
+  typedef boost::numeric::conversion_traits<T,S> traits ;
+  typedef boost::numeric::converter<T,S,traits,OverflowHandler> converter ;
+
+  static const S psrc = boost::numeric::bounds<S>::highest();
+  static const S nsrc = boost::numeric::bounds<S>::lowest ();
+
+  static const T pres = static_cast<T>(psrc);
+  static const T nres = static_cast<T>(nsrc);
+
+  test_conv_base ( ConversionInstance<converter>(pres,psrc,pos) ) ;
+  test_conv_base ( ConversionInstance<converter>(nres,nsrc,neg) ) ;
+}
+
+template<class T, class S>
+void test_overflow_handlers( MATCH_FNTPL_ARG(T), MATCH_FNTPL_ARG(S) )
+{
+  cout << "Testing Silent Overflow Handler policy\n";
+
+  test_overflow_handler( SET_FNTPL_ARG(T),
+                         SET_FNTPL_ARG(S),
+                         SET_FNTPL_ARG(boost::numeric::silent_overflow_handler),
+                         c_converted,
+                         c_converted
+                       ) ;
+
+  cout << "Testing Default Overflow Handler policy\n";
+
+  test_overflow_handler( SET_FNTPL_ARG(T),
+                         SET_FNTPL_ARG(S),
+                         SET_FNTPL_ARG(boost::numeric::def_overflow_handler),
+                         c_pos_overflow,
+                         c_neg_overflow
+                       ) ;
+
+  cout << "Testing Custom (User-Defined) Overflow Handler policy\n";
+
+  test_overflow_handler( SET_FNTPL_ARG(T),
+                         SET_FNTPL_ARG(S),
+                         SET_FNTPL_ARG(custom_overflow_handler),
+                         c_converted,
+                         c_converted
+                       ) ;
+}
+
+// For a given float-type number 'n' of integer value (n.0), check the conversions
+// within the range [n-1,n+1] taking values at: (n-1,n-0.5,n,n+0.5,n+1).
+// For each sampled value there is an expected result and a PostCondition according to the
+// specified round_style.
+//
+template<class T, class S, class Float2IntRounder>
+void test_rounding_conversion ( MATCH_FNTPL_ARG(T), MATCH_FNTPL_ARG(Float2IntRounder),
+                                S s,
+                                PostCondition resl1,
+                                PostCondition resl0,
+                                PostCondition res,
+                                PostCondition resr0,
+                                PostCondition resr1
+                              )
+{
+  typedef boost::numeric::conversion_traits<T,S> Traits ;
+
+  typedef boost::numeric::converter<T,S, Traits, boost::numeric::def_overflow_handler,Float2IntRounder>
+           Converter ;
+
+  S sl1 = s - static_cast<S>(1);
+  S sl0 = s - static_cast<S>(0.5);
+  S sr0 = s + static_cast<S>(0.5);
+  S sr1 = s + static_cast<S>(1);
+
+  T tl1 = static_cast<T>( Converter::nearbyint(sl1) );
+  T tl0 = static_cast<T>( Converter::nearbyint(sl0) );
+  T t   = static_cast<T>( Converter::nearbyint(s)   );
+  T tr0 = static_cast<T>( Converter::nearbyint(sr0) );
+  T tr1 = static_cast<T>( Converter::nearbyint(sr1) );
+
+  test_conv_base ( ConversionInstance<Converter>(tl1,sl1,resl1) ) ;
+  test_conv_base ( ConversionInstance<Converter>(tl0,sl0,resl0) ) ;
+  test_conv_base ( ConversionInstance<Converter>(t,s,res) ) ;
+  test_conv_base ( ConversionInstance<Converter>(tr0,sr0,resr0) ) ;
+  test_conv_base ( ConversionInstance<Converter>(tr1,sr1,resr1) ) ;
+}
+
+
+template<class T,class S>
+void test_round_style( MATCH_FNTPL_ARG(T), MATCH_FNTPL_ARG(S) )
+{
+  S min = boost::numeric::bounds<T>::lowest();
+  S max = boost::numeric::bounds<T>::highest();
+
+  cout << "Testing 'Trunc' Float2IntRounder policy\n";
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::Trunc<S>),
+                           min,
+                           c_neg_overflow,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_converted
+                          ) ;
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::Trunc<S>),
+                           max,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_pos_overflow
+                          ) ;
+
+  cout << "Testing 'RoundEven' Float2IntRounder policy\n";
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::RoundEven<S>),
+                           min,
+                           c_neg_overflow,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_converted
+                          ) ;
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::RoundEven<S>),
+                           max,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_pos_overflow,
+                           c_pos_overflow
+                          ) ;
+
+  cout << "Testing 'Ceil' Float2IntRounder policy\n";
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::Ceil<S>),
+                           min,
+                           c_neg_overflow,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_converted
+                          ) ;
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::Ceil<S>),
+                           max,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_pos_overflow,
+                           c_pos_overflow
+                          ) ;
+
+  cout << "Testing 'Floor' Float2IntRounder policy\n" ;
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::Floor<S>),
+                           min,
+                           c_neg_overflow,
+                           c_neg_overflow,
+                           c_converted,
+                           c_converted,
+                           c_converted
+                          ) ;
+
+  test_rounding_conversion(SET_FNTPL_ARG(T),
+                           SET_FNTPL_ARG(boost::numeric::Floor<S>),
+                           max,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_converted,
+                           c_pos_overflow
+                          ) ;
+
+}
+
+void test_round_even( double n, double x )
+{
+  double r = boost::numeric::RoundEven<double>::nearbyint(n);
+  BOOST_TEST( r == x ) ;
+}
+
+void test_round_even()
+{
+  cout << "Testing 'RoundEven' tie-breaking\n";
+
+  double min = boost::numeric::bounds<double>::lowest();
+  double max = boost::numeric::bounds<double>::highest();
+
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+  using std::floor ;
+  using std::ceil ;
+#endif
+  test_round_even(min, floor(min));
+  test_round_even(max, ceil (max));
+  test_round_even(2.0, 2.0);
+  test_round_even(2.3, 2.0);
+  test_round_even(2.5, 2.0);
+  test_round_even(2.7, 3.0);
+  test_round_even(3.0, 3.0);
+  test_round_even(3.3, 3.0);
+  test_round_even(3.5, 4.0);
+  test_round_even(3.7, 4.0);
+}
+
+int double_to_int ( double n ) { return static_cast<int>(n) ; }
+
+void test_converter_as_function_object()
+{
+  cout << "Testing converter as function object.\n";
+
+  // Create a sample sequence of double values.
+  std::vector<double> S ;
+  for ( int i = 0 ; i < 10 ; ++ i )
+    S.push_back( i * ( 18.0 / 19.0 ) );
+
+  // Create a sequence of int values from 's' using the standard conversion.
+  std::vector<int> W ;
+  std::transform(S.begin(),S.end(),std::back_inserter(W),double_to_int);
+
+  // Create a sequence of int values from s using a default numeric::converter
+  std::vector<int> I ;
+  std::transform(S.begin(),
+                 S.end(),
+                 std::back_inserter(I),
+                 boost::numeric::converter<int,double>()
+                ) ;
+
+  // Match 'w' and 'i' which should be equal.
+  bool double_to_int_OK = std::equal(W.begin(),W.end(),I.begin()) ;
+  BOOST_TEST(double_to_int_OK);
+
+  // Create a sequence of double values from s using a default numeric::converter (which should be the trivial conv).
+  std::vector<double> D ;
+  std::transform(S.begin(),
+                 S.end(),
+                 std::back_inserter(D),
+                 boost::numeric::converter<double,double>()
+                ) ;
+
+  // Match 's' and 'd' which should be equal.
+  bool double_to_double_OK = std::equal(S.begin(),S.end(),D.begin()) ;
+  BOOST_TEST(double_to_double_OK);
+}
+
+#if BOOST_WORKAROUND(__IBMCPP__, <= 600 ) // VCAPP6
+#  define UNOPTIMIZED
+#else
+#  define UNOPTIMIZED volatile
+#endif
+
+void test_optimizations()
+{
+  using namespace boost;
+  using namespace numeric;
+
+  float fv0 = 18.0f / 19.0f ;
+
+  // This code deosn't produce any output.
+  // It is intended to show the optimization of numeric::converter<> by manual inspection
+  // of the generated code.
+  // Each test shows first the equivalent hand-coded version.
+  // The numeric_cast<> code should be the same if full compiler optimization/inlining is used.
+
+  //---------------------------------
+  // trivial conversion.
+  //
+    // equivalent code:
+      UNOPTIMIZED float fv1a = fv0 ;
+
+    float fv1b = numeric_cast<float>(fv0);
+    unused_variable(fv1a);
+    unused_variable(fv1b);
+  //
+  //---------------------------------
+
+  //---------------------------------
+  // nonsubranged conversion.
+  //
+    // equivalent code:
+      UNOPTIMIZED double dv1a = static_cast<double>(fv0);
+
+    double dv1b = numeric_cast<double>(fv0);
+    unused_variable(dv1a);
+    unused_variable(dv1b);
+  //
+  //---------------------------------
+
+  //------------------------------------------------------
+  // subranged conversion with both-sided range checking.
+  //
+
+    // equivalent code:
+
+      {
+        double const& s = dv1b ;
+        // range checking
+        range_check_result r =  s < static_cast<double>(bounds<float>::lowest())
+                                  ? cNegOverflow : cInRange ;
+        if ( r == cInRange )
+        {
+          r = s > static_cast<double>(bounds<float>::highest()) ? cPosOverflow : cInRange ;
+        }
+        if ( r == cNegOverflow )
+          throw negative_overflow() ;
+        else if ( r == cPosOverflow )
+               throw positive_overflow() ;
+        // conversion
+        UNOPTIMIZED float fv2a = static_cast<float>(s);
+        unused_variable(fv2a);
+      }
+
+    float fv2b = numeric_cast<float>(dv1b);
+    unused_variable(fv2b);
+  //
+  //---------------------------------
+
+
+  //---------------------------------
+  // subranged rounding conversion
+  //
+    // equivalent code:
+
+      {
+        double const& s = dv1b ;
+        // range checking
+        range_check_result r = s <= static_cast<double>(bounds<int>::lowest()) - static_cast<double>(1.0)
+                                 ? cNegOverflow : cInRange ;
+        if ( r == cInRange )
+        {
+          r = s >= static_cast<double>(bounds<int>::highest()) + static_cast<double>(1.0)
+                ? cPosOverflow : cInRange ;
+        }
+        if ( r == cNegOverflow )
+          throw negative_overflow() ;
+        else if ( r == cPosOverflow )
+               throw positive_overflow() ;
+        // rounding
+
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+        using std::floor ;
+#endif
+
+        double s1 = floor(dv1b + 0.5);
+
+        // conversion
+        UNOPTIMIZED int iv1a = static_cast<int>(s1);
+        unused_variable(iv1a);
+      }
+
+    int iv1b = numeric_cast<int>(dv1b);
+    unused_variable(iv1b);
+  //
+  //---------------------------------
+}
+
+int main()
+{
+  std::cout << std::setprecision( std::numeric_limits<long double>::digits10 ) ;
+
+  test_conversions();
+  test_overflow_handlers( SET_FNTPL_ARG(boost::int16_t), SET_FNTPL_ARG(boost::int32_t));
+  test_round_style(SET_FNTPL_ARG(boost::int32_t), SET_FNTPL_ARG(double) ) ;
+  test_round_even() ;
+  test_converter_as_function_object();
+  test_optimizations() ;
+
+  return boost::report_errors();
+}
+//---------------------------------------------------------------------------
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/numeric_cast_test.cpp

@@ -0,0 +1,80 @@
+//  boost utility cast test program  -----------------------------------------//
+
+//  (C) Copyright Beman Dawes, Dave Abrahams 1999. Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version including documentation.
+
+//  Revision History
+//   28 Set 04  taken from the old cast library (Fernando Cacciola)
+
+#include <iostream>
+#include <climits>
+#include <cfloat>   // for DBL_MAX (Peter Schmid)
+
+#include <boost/numeric/conversion/cast.hpp>
+
+#include <boost/core/lightweight_test.hpp>
+
+#  if SCHAR_MAX == LONG_MAX
+#      error "This test program doesn't work if SCHAR_MAX == LONG_MAX"
+#  endif
+
+using namespace boost;
+using std::cout;
+
+int main()
+{
+
+#   ifdef NDEBUG
+        cout << "NDEBUG is defined\n";
+#   else
+        cout << "NDEBUG is not defined\n";
+#   endif
+
+    cout << "\nBeginning tests...\n";
+
+//  test implicit_cast and numeric_cast  -------------------------------------//
+
+    //  tests which should succeed
+    long small_value = 1;
+    long small_negative_value = -1;
+    long large_value = LONG_MAX;
+    long large_negative_value = LONG_MIN;
+    signed char c = 0;
+
+    c = large_value;  // see if compiler generates warning
+
+    c = numeric_cast<signed char>( small_value );
+    BOOST_TEST( c == 1 );
+    c = 0;
+    c = numeric_cast<signed char>( small_value );
+    BOOST_TEST( c == 1 );
+    c = 0;
+    c = numeric_cast<signed char>( small_negative_value );
+    BOOST_TEST( c == -1 );
+
+    // These tests courtesy of Joe R NWP Swatosh<joe.r.swatosh@usace.army.mil>
+    BOOST_TEST( 0.0f == numeric_cast<float>( 0.0 ) );
+    BOOST_TEST( 0.0 == numeric_cast<double>( 0.0 ) );
+
+    //  tests which should result in errors being detected
+
+    BOOST_TEST_THROWS( numeric_cast<signed char>(large_value),
+        numeric::bad_numeric_cast );
+
+    BOOST_TEST_THROWS( numeric_cast<signed char>(large_negative_value),
+        numeric::bad_numeric_cast );
+
+    BOOST_TEST_THROWS( numeric_cast<signed char>(large_negative_value),
+        numeric::bad_numeric_cast );
+
+    BOOST_TEST_THROWS( numeric_cast<unsigned long>(small_negative_value),
+        numeric::bad_numeric_cast );
+
+    BOOST_TEST_THROWS( numeric_cast<int>(DBL_MAX), numeric::bad_numeric_cast );
+
+    return boost::report_errors() ;
+
+}   // main

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/numeric_cast_traits_test.cpp

@@ -0,0 +1,377 @@
+//
+//! Copyright (c) 2011
+//! Brandon Kohn
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/operators.hpp>
+#include <boost/numeric/conversion/cast.hpp>
+#include <boost/mpl/for_each.hpp>
+#include <boost/mpl/vector.hpp>
+#include <boost/cstdint.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/static_assert.hpp>
+
+//! Define a simple custom number
+struct Double
+{
+    Double()
+        : v(0)
+    {}
+
+    template <typename T>
+    explicit Double( T v )
+        : v(static_cast<double>(v))
+    {}
+
+    template <typename T>
+    Double& operator= ( T t )
+    {
+        v = static_cast<double>(t);
+        return *this;
+    }
+
+    bool operator < ( const Double& rhs ) const
+    {
+        return v < rhs.v;
+    }
+
+    template <typename T>
+    bool operator < ( T rhs ) const
+    {
+        return v < static_cast<double>(rhs);
+    }
+
+    template <typename LHS>
+    friend bool operator < ( const LHS& lhs, const Double& rhs )
+    {
+        return lhs < rhs.v;
+    }
+
+    bool operator > ( const Double& rhs ) const
+    {
+        return v > rhs.v;
+    }
+
+    template <typename LHS>
+    friend bool operator > ( const LHS& lhs, const Double& rhs )
+    {
+        return lhs > rhs.v;
+    }
+    
+    template <typename T>
+    bool operator > ( T rhs ) const
+    {
+        return v > static_cast<double>(rhs);
+    }
+    
+    bool operator == ( const Double& rhs ) const
+    {
+        return v == rhs.v;
+    }
+    
+    template <typename T>
+    bool operator == ( T rhs ) const
+    {
+        return v == static_cast<double>(rhs);
+    }
+
+    template <typename LHS>
+    friend bool operator == ( const LHS& lhs, const Double& rhs )
+    {
+        return lhs == rhs.v;
+    }
+    
+    bool operator !() const
+    {
+        return v == 0; 
+    }
+    
+    Double operator -() const
+    {
+        return Double(-v);
+    }
+    
+    Double& operator +=( const Double& t )
+    {
+        v += t.v;
+        return *this;
+    }
+    
+    template <typename T>
+    Double& operator +=( T t )
+    {
+        v += static_cast<double>(t);
+        return *this;
+    }
+    
+    Double& operator -=( const Double& t )
+    {
+        v -= t.v;
+        return *this;
+    }
+    
+    template <typename T>
+    Double& operator -=( T t )
+    {
+        v -= static_cast<double>(t);
+        return *this;
+    }
+    
+    Double& operator *= ( const Double& factor )
+    {
+        v *= factor.v;
+        return *this;
+    }
+    
+    template <typename T>
+    Double& operator *=( T t )
+    {
+        v *= static_cast<double>(t);
+        return *this;
+    }
+
+    Double& operator /= (const Double& divisor)
+    {
+        v /= divisor.v;
+        return *this;
+    }
+    
+    template <typename T>
+    Double& operator /=( T t )
+    {
+         v /= static_cast<double>(t);
+        return (*this);       
+    }
+    
+    double v;
+};
+
+//! Define numeric_limits for the custom type.
+namespace std
+{
+    template<>
+    class numeric_limits< Double > : public numeric_limits<double>
+    {
+    public:
+
+        //! Limit our Double to a range of +/- 100.0
+        static Double (min)()
+        {            
+            return Double(1.e-2);
+        }
+
+        static Double (max)()
+        {
+            return Double(1.e2);
+        }
+
+        static Double epsilon()
+        {
+            return Double( std::numeric_limits<double>::epsilon() );
+        }
+    };
+}
+
+//! Define range checking and overflow policies.
+namespace custom
+{
+    //! Define a custom range checker
+    template<typename Traits, typename OverFlowHandler>
+    struct range_checker
+    {
+        typedef typename Traits::argument_type argument_type ;
+        typedef typename Traits::source_type S;
+        typedef typename Traits::target_type T;
+        
+        //! Check range of integral types.
+        static boost::numeric::range_check_result out_of_range( argument_type s )
+        {
+            using namespace boost::numeric;
+            if( s > bounds<T>::highest() )
+                return cPosOverflow;
+            else if( s < bounds<T>::lowest() )
+                return cNegOverflow;
+            else
+                return cInRange;
+        }
+
+        static void validate_range ( argument_type s )
+        {
+            BOOST_STATIC_ASSERT( std::numeric_limits<T>::is_bounded );
+            OverFlowHandler()( out_of_range(s) );
+        }
+    };
+
+    //! Overflow handler
+    struct positive_overflow{};
+    struct negative_overflow{};
+
+    struct overflow_handler
+    {
+        void operator() ( boost::numeric::range_check_result r )
+        {
+            using namespace boost::numeric;
+            if( r == cNegOverflow )
+                throw negative_overflow() ;
+            else if( r == cPosOverflow )
+                throw positive_overflow() ;
+        }
+    };
+
+    //! Define a rounding policy and specialize on the custom type.
+    template<class S>
+    struct Ceil : boost::numeric::Ceil<S>{};
+
+    template<>
+    struct Ceil<Double>
+    {
+      typedef Double source_type;
+
+      typedef Double const& argument_type;
+
+      static source_type nearbyint ( argument_type s )
+      {
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+          using std::ceil ;
+#endif
+          return Double( ceil(s.v) );
+      }
+
+      typedef boost::mpl::integral_c< std::float_round_style, std::round_toward_infinity> round_style;
+    };
+
+    //! Define a rounding policy and specialize on the custom type.
+    template<class S>
+    struct Trunc: boost::numeric::Trunc<S>{};
+
+    template<>
+    struct Trunc<Double>
+    {
+      typedef Double source_type;
+
+      typedef Double const& argument_type;
+
+      static source_type nearbyint ( argument_type s )
+      {
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+          using std::floor;
+#endif
+          return Double( floor(s.v) );
+      }
+
+      typedef boost::mpl::integral_c< std::float_round_style, std::round_toward_zero> round_style;
+    };
+}//namespace custom;
+
+namespace boost { namespace numeric {
+
+    //! Define the numeric_cast_traits specializations on the custom type.
+    template <typename S>
+    struct numeric_cast_traits<Double, S>
+    {
+        typedef custom::overflow_handler                         overflow_policy;
+        typedef custom::range_checker
+                <
+                    boost::numeric::conversion_traits<Double, S>
+                  , overflow_policy
+                >                                                range_checking_policy;
+        typedef boost::numeric::Trunc<S>                         rounding_policy;
+    };
+    
+    template <typename T>
+    struct numeric_cast_traits<T, Double>
+    {
+        typedef custom::overflow_handler                         overflow_policy;
+        typedef custom::range_checker
+                <
+                    boost::numeric::conversion_traits<T, Double>
+                  , overflow_policy
+                >                                                range_checking_policy;
+        typedef custom::Trunc<Double>                            rounding_policy;
+    };
+
+    //! Define the conversion from the custom type to built-in types and vice-versa.
+    template<typename T>
+    struct raw_converter< conversion_traits< T, Double > >
+    {
+        static T low_level_convert ( const Double& n )
+        {
+            return static_cast<T>( n.v ); 
+        }
+    };
+
+    template<typename S>
+    struct raw_converter< conversion_traits< Double, S > >
+    {
+        static Double low_level_convert ( const S& n )
+        {
+            return Double(n); 
+        }
+    };
+}}//namespace boost::numeric;
+
+#define BOOST_TEST_CATCH_CUSTOM_POSITIVE_OVERFLOW( CastCode ) \
+    BOOST_TEST_THROWS( CastCode, custom::positive_overflow )
+/***/
+
+#define BOOST_TEST_CATCH_CUSTOM_NEGATIVE_OVERFLOW( CastCode ) \
+    BOOST_TEST_THROWS( CastCode, custom::negative_overflow )
+/***/
+
+struct test_cast_traits
+{
+    template <typename T>
+    void operator()(T) const
+    {
+        Double d = boost::numeric_cast<Double>( static_cast<T>(50) );
+        BOOST_TEST( d.v == 50. );
+        T v = boost::numeric_cast<T>( d );
+        BOOST_TEST( v == 50 );
+    }
+};
+
+void test_numeric_cast_traits()
+{
+    typedef boost::mpl::vector
+        <
+            boost::int8_t
+          , boost::uint8_t
+          , boost::int16_t
+          , boost::uint16_t
+          , boost::int32_t
+          , boost::uint32_t
+#if !defined( BOOST_NO_INT64_T )
+          , boost::int64_t
+          , boost::uint64_t
+#endif
+          , float
+          , double
+          , long double 
+        > types;
+    boost::mpl::for_each<types>( test_cast_traits() );
+        
+    //! Check overflow handler.
+    Double d( 56.0 );
+    BOOST_TEST_CATCH_CUSTOM_POSITIVE_OVERFLOW( d = boost::numeric_cast<Double>( 101 ) );
+    BOOST_TEST( d.v == 56. );
+    BOOST_TEST_CATCH_CUSTOM_NEGATIVE_OVERFLOW( d = boost::numeric_cast<Double>( -101 ) );
+    BOOST_TEST( d.v == 56.);
+
+    //! Check custom round policy.
+    d = 5.9;
+    int five = boost::numeric_cast<int>( d );
+    BOOST_TEST( five == 5 );
+}
+
+int main()
+{
+    test_numeric_cast_traits();
+    return boost::report_errors();
+}
+
+#undef BOOST_TEST_CATCH_CUSTOM_POSITIVE_OVERFLOW
+#undef BOOST_TEST_CATCH_CUSTOM_NEGATIVE_OVERFLOW

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/test_helpers.cpp

@@ -0,0 +1,152 @@
+// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+
+//
+// NOTE: This file is intended to be used ONLY by the test files
+//       from the Numeric Conversions Library
+//
+//
+#include <cmath>
+
+#include "boost/limits.hpp"
+#include "boost/utility.hpp"
+
+#include <boost/core/lightweight_test.hpp>
+
+// Convenience macros to help with compilers which don't parse
+// explicit template function instantiations (MSVC6)
+#define MATCH_FNTPL_ARG(t) t const*
+#define SET_FNTPL_ARG(t) (static_cast< t const* >(0))
+
+//
+// *Minimal* example of a User Defined Numeric Type
+//
+//
+namespace MyUDT
+{
+
+template<class T>
+struct UDT
+{
+  typedef T builtin_type ;
+
+  UDT ( T v_ ) : v (v_) {}
+
+  T to_builtin() const { return v ; }
+
+  friend bool operator == ( UDT const& lhs, UDT const& rhs )
+    { return lhs.to_builtin() == rhs.to_builtin() ; }
+
+  // NOTE: This operator is *required* by the Numeric Conversion Library
+  //       if Turnc<> is used as the Float2IntRounder policy.
+  friend bool operator < ( UDT const& lhs, UDT const& rhs )
+    { return lhs.to_builtin() < rhs.to_builtin() ; }
+
+  friend std::ostream& operator << ( std::ostream& os, UDT const& n )
+    { return os << n.to_builtin() ; }
+
+  T v ;
+} ;
+
+typedef UDT<int>    MyInt ;
+typedef UDT<double> MyFloat ;
+
+//
+// The Float2IntRounder policies *require* a visible 'ceil' or 'floor' math function
+// with standard semantics.
+// In a conformant compiler, ADL can pick these functions even if they are defined
+// within a user namespace, as below.
+//
+inline MyInt ceil  ( MyInt const& x ) { return x ; }
+inline MyInt floor ( MyInt const& x ) { return x ; }
+
+inline MyFloat floor ( MyFloat const& x )
+{
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+  return MyFloat ( std::floor(x.to_builtin()) ) ;
+#else
+  return MyFloat ( ::floor(x.to_builtin()) ) ;
+#endif
+}
+
+inline MyFloat ceil ( MyFloat const& x )
+{
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+  return MyFloat ( std::ceil(x.to_builtin()) ) ;
+#else
+  return MyFloat ( ::ceil(x.to_builtin()) ) ;
+#endif
+}
+
+} // namespace MyUDT
+
+
+//
+// The Numeric Conversion Library *requires* User Defined Numeric Types
+// to properly specialize std::numeric_limits<>
+//
+namespace std
+{
+
+template<>
+class numeric_limits<MyUDT::MyInt> : public numeric_limits<int>
+{
+  public :
+
+    BOOST_STATIC_CONSTANT(bool, is_specialized = false);
+} ;
+
+template<>
+class numeric_limits<MyUDT::MyFloat> : public numeric_limits<double>
+{
+  public :
+
+    BOOST_STATIC_CONSTANT(bool, is_specialized = false);
+} ;
+
+} // namespace std
+
+
+
+//
+// The functions floor and ceil defined within namespace MyUDT
+// should be found by koenig loopkup, but some compilers don't do it right
+// so we inyect them into namespace std so ordinary overload resolution
+// can found them.
+#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) || defined(BOOST_BORLANDC) || defined(__GNUC__)
+namespace std {
+using MyUDT::floor ;
+using MyUDT::ceil  ;
+} // namespace std
+#endif
+
+
+std::string to_string( bool arg )
+{
+  return arg ? "true" : "false" ;
+}
+
+std::string to_string( ... ) { throw std::runtime_error("to_string() called with wrong type!") ; }
+
+//
+// This is used to print 'char' values as numbers instead of characters.
+//
+template<class T> struct printable_number_type   { typedef T type ; } ;
+template<> struct printable_number_type<signed char>   { typedef int type ; } ;
+template<> struct printable_number_type<unsigned char> { typedef unsigned type ; } ;
+template<> struct printable_number_type<char>          { typedef int type ; } ;
+
+template<class T>
+inline
+typename printable_number_type<T>::type
+printable( T n ) { return n ; }
+
+
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/test_helpers2.cpp

@@ -0,0 +1,60 @@
+// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+
+//
+// NOTE: This file is intended to be used ONLY by the test files
+//       from the Numeric Conversions Library
+//
+
+//
+// The following 'to_string' helpers are provided to give readable names
+// to the various enums used by the library.
+// NOTE: specializations of boost::lexical_cast<> were not used since some compilers had
+// trouble dealing with such specializations for different enumerations.
+//
+
+std::string to_string ( boost::numeric::int_float_mixture_enum arg )
+{
+  switch ( arg )
+  {
+    case boost::numeric::integral_to_integral : return "integral_to_integral" ;
+    case boost::numeric::integral_to_float    : return "integral_to_float" ;
+    case boost::numeric::float_to_integral    : return "float_to_integral" ;
+    case boost::numeric::float_to_float       : return "float_to_float" ;
+  }
+  return "(Unknown result!)" ;
+}
+
+
+std::string to_string ( boost::numeric::sign_mixture_enum arg )
+{
+  switch ( arg )
+  {
+    case boost::numeric::unsigned_to_unsigned : return "unsigned_to_unsigned" ;
+    case boost::numeric::signed_to_signed     : return "signed_to_signed" ;
+    case boost::numeric::signed_to_unsigned   : return "signed_to_unsigned" ;
+    case boost::numeric::unsigned_to_signed   : return "unsigned_to_signed" ;
+  }
+  return "(Unknown result!)" ;
+}
+
+std::string to_string ( boost::numeric::udt_builtin_mixture_enum arg )
+{
+  switch ( arg )
+  {
+    case boost::numeric::builtin_to_builtin : return "builtin_to_builtin" ;
+    case boost::numeric::builtin_to_udt     : return "builtin_to_udt" ;
+    case boost::numeric::udt_to_builtin     : return "udt_to_builtin" ;
+    case boost::numeric::udt_to_udt         : return "udt_to_udt" ;
+  }
+  return "(Unknown result!)" ;
+}
+
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/test_helpers3.cpp

@@ -0,0 +1,115 @@
+// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+
+//
+// NOTE: This file is intended to be used ONLY by the test files
+//       from the Numeric Conversions Library
+//
+
+// The conversion test is performed using a class whose instances encapsulate
+// a particular specific conversion defnied explicitely.
+// A ConversionInstance object includes the source type, the target type,
+// the source value and the expected result, including possible exceptions.
+//
+
+enum PostCondition { c_converted, c_overflow, c_neg_overflow, c_pos_overflow } ;
+
+template<class Converter>
+struct ConversionInstance
+{
+  typedef Converter converter ;
+
+  typedef typename Converter::argument_type argument_type ;
+  typedef typename Converter::result_type   result_type   ;
+
+  typedef typename Converter::traits traits ;
+  typedef typename traits::target_type target_type ;
+  typedef typename traits::source_type source_type ;
+
+  ConversionInstance ( result_type a_result, argument_type a_source, PostCondition a_post)
+    :
+    source(a_source),
+    result(a_result),
+    post(a_post)
+  {}
+
+  std::string to_string() const
+    {
+      return   std::string("converter<")
+             + typeid(target_type).name()
+             + std::string(",")
+             + typeid(source_type).name()
+             + std::string(">::convert(") ;
+    }
+
+  argument_type source ;
+  result_type   result ;
+  PostCondition post   ;
+} ;
+
+//
+// Main conversion test point.
+// Exercises a specific conversion described by 'conv'.
+//
+template<class Instance>
+void test_conv_base( Instance const& conv )
+{
+  typedef typename Instance::argument_type argument_type ;
+  typedef typename Instance::result_type   result_type   ;
+  typedef typename Instance::converter     converter ;
+
+  argument_type source = conv.source ;
+
+  try
+  {
+    result_type result = converter::convert(source);
+
+    if (BOOST_TEST_EQ(conv.post, c_converted))
+    {
+      BOOST_TEST_EQ(result, conv.result);
+    }
+  }
+  catch ( boost::numeric::negative_overflow const& )
+  { 
+    BOOST_TEST_EQ(conv.post, c_neg_overflow);
+  }
+  catch ( boost::numeric::positive_overflow const& )
+  {
+    BOOST_TEST_EQ(conv.post, c_pos_overflow);
+  }
+  catch ( boost::numeric::bad_numeric_cast const& )
+  {
+    BOOST_TEST_EQ(conv.post, c_overflow);
+  }
+}
+
+
+#define TEST_SUCCEEDING_CONVERSION(Conv,typeT,typeS,valueT,valueS) \
+        test_conv_base( ConversionInstance< Conv >(valueT, valueS, c_converted ) )
+
+#define TEST_POS_OVERFLOW_CONVERSION(Conv,typeT,typeS,valueS) \
+        test_conv_base( ConversionInstance< Conv >( static_cast< typeT >(0), valueS, c_pos_overflow ) )
+
+#define TEST_NEG_OVERFLOW_CONVERSION(Conv,typeT,typeS,valueS) \
+        test_conv_base( ConversionInstance< Conv >( static_cast< typeT >(0), valueS, c_neg_overflow ) )
+
+#define DEF_CONVERTER(T,S) boost::numeric::converter< T , S >
+
+#define TEST_SUCCEEDING_CONVERSION_DEF(typeT,typeS,valueT,valueS) \
+        TEST_SUCCEEDING_CONVERSION( DEF_CONVERTER(typeT,typeS), typeT, typeS, valueT, valueS )
+
+#define TEST_POS_OVERFLOW_CONVERSION_DEF(typeT,typeS,valueS) \
+        TEST_POS_OVERFLOW_CONVERSION( DEF_CONVERTER(typeT,typeS), typeT, typeS, valueS )
+
+#define TEST_NEG_OVERFLOW_CONVERSION_DEF(typeT,typeS,valueS) \
+        TEST_NEG_OVERFLOW_CONVERSION( DEF_CONVERTER(typeT,typeS), typeT, typeS, valueS )
+
+
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/traits_test.cpp

@@ -0,0 +1,333 @@
+// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+#include<iostream>
+#include<iomanip>
+#include<string>
+#include<typeinfo>
+#include<vector>
+#include<algorithm>
+
+#include <boost/cstdint.hpp>
+#include <boost/utility.hpp>
+#include <boost/preprocessor/cat.hpp>
+
+#include <boost/numeric/conversion/conversion_traits.hpp>
+#include <boost/numeric/conversion/int_float_mixture.hpp>
+#include <boost/numeric/conversion/sign_mixture.hpp>
+#include <boost/numeric/conversion/udt_builtin_mixture.hpp>
+#include <boost/numeric/conversion/is_subranged.hpp>
+
+#ifdef BOOST_BORLANDC
+#pragma hdrstop
+#endif
+
+#include "test_helpers.cpp"
+#include "test_helpers2.cpp"
+
+using namespace std ;
+using namespace boost ;
+using namespace numeric;
+using namespace MyUDT ;
+
+// These helpers are used by generate_expected_traits<T,S>.
+// Unlike the similar helpers in the implementation, they are specialized by extension.
+//
+template<class T, class S> struct my_is_subranged ;
+template<class T, class S> struct my_is_trivial   ;
+template<class T, class S> struct my_int_float_mixture ;
+template<class T, class S> struct my_sign_mixture ;
+template<class T, class S> struct my_udt_builtin_mixture ;
+
+// This macro is used to define the properties of each conversion between
+// the builtin arithmetric types
+//
+// It defines the specialization of the helper traits used by 'generate_expected_traits'
+//
+#define DEFINE_CONVERSION(Target,Source,Trivial,Mixture,SignMixture,UdtMixture,SubRanged) \
+                                                          \
+        template<> struct my_is_subranged<Target,Source>  \
+          { typedef mpl::bool_< (SubRanged) > type ; } ; \
+                                                         \
+        template<> struct my_is_trivial<Target,Source>   \
+          { typedef mpl::bool_< (Trivial) > type ; } ;  \
+                                                                                                 \
+        template<> struct my_int_float_mixture<Target,Source>                                    \
+          { typedef mpl::integral_c<boost::numeric::int_float_mixture_enum, (Mixture) > type ; } ;    \
+                                                                                                 \
+        template<> struct my_sign_mixture<Target,Source>                                         \
+          { typedef mpl::integral_c<boost::numeric::sign_mixture_enum, (SignMixture) > type ; } ;     \
+                                                                                                 \
+        template<> struct my_udt_builtin_mixture<Target,Source>                                  \
+          { typedef mpl::integral_c<boost::numeric::udt_builtin_mixture_enum, (UdtMixture) > type ; }
+
+
+#define cSubRanged true
+#define cTrivial   true
+
+// The following test assumes a specific relation between the sizes of the types being used;
+// therefore, use specific fixed-width types instead built-in types directly.
+
+// NOTE --> TARGET,SOURCE
+//
+DEFINE_CONVERSION(boost::uint8_t  , boost::uint8_t,  cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(float           , boost::uint8_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , boost::uint8_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , boost::uint8_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , boost::uint8_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , boost::int8_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , boost::int8_t,  cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , boost::int8_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , boost::int8_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(float           , boost::int8_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , boost::int8_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , boost::int8_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , boost::int8_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , boost::int8_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , boost::uint16_t,  cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(float           , boost::uint16_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , boost::uint16_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , boost::uint16_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , boost::uint16_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , boost::int16_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , boost::int16_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , boost::int16_t,  cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , boost::int16_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(float           , boost::int16_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , boost::int16_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , boost::int16_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , boost::int16_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , boost::int16_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , boost::uint32_t,  cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(float           , boost::uint32_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , boost::uint32_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , boost::uint32_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , boost::uint32_t, !cTrivial, integral_to_float   , unsigned_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , boost::int32_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , boost::int32_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , boost::int32_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , boost::int32_t,  cTrivial, integral_to_integral, signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(float           , boost::int32_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , boost::int32_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , boost::int32_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , boost::int32_t, !cTrivial, integral_to_integral, signed_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , boost::int32_t, !cTrivial, integral_to_float   , signed_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , float, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , float, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , float, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , float, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , float, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , float, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(float           , float,  cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(double          , float, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, ( sizeof(float) > sizeof(double) ) );
+DEFINE_CONVERSION(long double     , float, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, ( sizeof(float) > sizeof(long double) ) );
+DEFINE_CONVERSION(MyInt           , float, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , float, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(float           , double, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, ( sizeof(double) > sizeof(float) ) );
+DEFINE_CONVERSION(double          , double,  cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(long double     , double, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, ( sizeof(double) > sizeof(long double) ) );
+DEFINE_CONVERSION(MyInt           , double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , double, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , long double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , long double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , long double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , long double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , long double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , long double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_builtin,  cSubRanged );
+DEFINE_CONVERSION(float           , long double, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, ( sizeof(long double) > sizeof(float) ) );
+DEFINE_CONVERSION(double          , long double, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, ( sizeof(long double) > sizeof(double) ) );
+DEFINE_CONVERSION(long double     , long double,  cTrivial, float_to_float   , signed_to_signed  , builtin_to_builtin, !cSubRanged );
+DEFINE_CONVERSION(MyInt           , long double, !cTrivial, float_to_integral, signed_to_signed  , builtin_to_udt    , !cSubRanged );
+DEFINE_CONVERSION(MyFloat         , long double, !cTrivial, float_to_float   , signed_to_signed  , builtin_to_udt    , !cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , MyInt, !cTrivial, integral_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , MyInt, !cTrivial, integral_to_integral, signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , MyInt, !cTrivial, integral_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , MyInt, !cTrivial, integral_to_integral, signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , MyInt, !cTrivial, integral_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , MyInt, !cTrivial, integral_to_integral, signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(float           , MyInt, !cTrivial, integral_to_float   , signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(double          , MyInt, !cTrivial, integral_to_float   , signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(long double     , MyInt, !cTrivial, integral_to_float   , signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(MyInt           , MyInt,  cTrivial, integral_to_integral, signed_to_signed  , udt_to_udt     ,!cSubRanged );
+DEFINE_CONVERSION(MyFloat         , MyInt, !cTrivial, integral_to_float   , signed_to_signed  , udt_to_udt     ,!cSubRanged );
+
+DEFINE_CONVERSION(boost::uint8_t  , MyFloat, !cTrivial, float_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::int8_t   , MyFloat, !cTrivial, float_to_integral, signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::uint16_t , MyFloat, !cTrivial, float_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::int16_t  , MyFloat, !cTrivial, float_to_integral, signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::uint32_t , MyFloat, !cTrivial, float_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(boost::int32_t  , MyFloat, !cTrivial, float_to_integral, signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(float           , MyFloat, !cTrivial, float_to_float   , signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(double          , MyFloat, !cTrivial, float_to_float   , signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(long double     , MyFloat, !cTrivial, float_to_float   , signed_to_signed  , udt_to_builtin , cSubRanged );
+DEFINE_CONVERSION(MyInt           , MyFloat, !cTrivial, float_to_integral, signed_to_signed  , udt_to_udt     ,!cSubRanged );
+DEFINE_CONVERSION(MyFloat         , MyFloat,  cTrivial, float_to_float   , signed_to_signed  , udt_to_udt     ,!cSubRanged );
+
+//
+// The test is performed by comparing each field of
+//   boost::numeric::conversion_traits<T,S>
+// with the fields of
+//   expected_traits<T,S>
+// which is a traits class constructed explicitely for each combination
+// of the built-in arithmetic types.
+//
+template<class T,
+         class S,
+         class Supertype,
+         class Subtype,
+         class Subranged,
+         class Trivial
+        >
+struct expected_traits
+{
+  typedef typename my_int_float_mixture   <T,S>::type int_float_mixture ;
+  typedef typename my_sign_mixture        <T,S>::type sign_mixture ;
+  typedef typename my_udt_builtin_mixture <T,S>::type udt_builtin_mixture ;
+
+  typedef Subranged subranged ;
+  typedef Trivial   trivial   ;
+  typedef Supertype supertype ;
+  typedef Subtype   subtype   ;
+} ;
+
+// This is used by the test engine to generate a expected_traits from T and S.
+//
+template<class T, class S>
+struct generate_expected_traits
+{
+  typedef expected_traits<T, S, T, S, mpl::false_, mpl::true_  > trivial ;
+  typedef expected_traits<T, S, S, T, mpl::true_ , mpl::false_ > subranged ;
+  typedef expected_traits<T, S, T, S, mpl::false_, mpl::false_ > non_subranged ;
+
+  typedef typename my_is_subranged<T,S>::type IsSubranged ;
+  typedef typename my_is_trivial  <T,S>::type IsTrivial   ;
+
+  typedef typename mpl::if_<IsSubranged,subranged,non_subranged>::type non_trivial ;
+
+  typedef typename mpl::if_<IsTrivial,trivial,non_trivial>::type  type ;
+} ;
+
+// This macro generates the code that compares a non-type field
+// in boost::numeric::conversion_traits<> with its corresponding field
+// in expected_traits<>
+//
+
+#define TEST_VALUE_FIELD(Name) \
+        typedef typename traits::Name   BOOST_PP_CAT(t,Name) ; \
+        typedef typename expected::Name BOOST_PP_CAT(x,Name) ; \
+        BOOST_TEST( ( BOOST_PP_CAT(t,Name)::value == BOOST_PP_CAT(x,Name)::value ) ) ;
+
+// This macro generates the code that compares a type field
+// in numeric::conversion_traits<> with its corresponding field
+// in expected_traits<>
+//
+#define TEST_TYPE_FIELD(Name) \
+        typedef typename traits::Name   BOOST_PP_CAT(t,Name) ; \
+        typedef typename expected::Name BOOST_PP_CAT(x,Name) ; \
+        BOOST_TEST ( ( typeid(BOOST_PP_CAT(t,Name)) == typeid(BOOST_PP_CAT(x,Name)) ) ) ;
+
+//
+// Test core.
+// Compares each field of boost::numeric::conversion_traits<T,S>
+// with the corresponding field of expected_traits<T,S>
+//
+template<class T, class S>
+void test_traits_base(  MATCH_FNTPL_ARG(T),  MATCH_FNTPL_ARG(S) )
+{
+  typedef boost::numeric::conversion_traits<T,S> traits ;
+  typedef typename generate_expected_traits<T,S>::type expected ;
+
+  TEST_VALUE_FIELD(int_float_mixture) ;
+  TEST_VALUE_FIELD(sign_mixture) ;
+  TEST_VALUE_FIELD(udt_builtin_mixture) ;
+  TEST_VALUE_FIELD(subranged) ;
+  TEST_VALUE_FIELD(trivial) ;
+  TEST_TYPE_FIELD (supertype) ;
+  TEST_TYPE_FIELD (subtype) ;
+}
+
+
+template<class S>
+void test_traits_from(  MATCH_FNTPL_ARG(S) )
+{
+  test_traits_base( SET_FNTPL_ARG(boost::uint8_t)  ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(boost::int8_t)   ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(boost::uint16_t) ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(boost::int16_t)  ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(boost::uint32_t) ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(boost::int32_t)  ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(float)           ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(double)          ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(long double)     ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(MyInt)           ,SET_FNTPL_ARG(S) );
+  test_traits_base( SET_FNTPL_ARG(MyFloat)         ,SET_FNTPL_ARG(S) );
+}
+
+void test_traits()
+{
+  test_traits_from( SET_FNTPL_ARG(boost::uint8_t)  );
+  test_traits_from( SET_FNTPL_ARG(boost::int8_t)   );
+  test_traits_from( SET_FNTPL_ARG(boost::uint16_t) );
+  test_traits_from( SET_FNTPL_ARG(boost::int16_t)  );
+  test_traits_from( SET_FNTPL_ARG(boost::uint32_t) );
+  test_traits_from( SET_FNTPL_ARG(boost::int32_t)  );
+  test_traits_from( SET_FNTPL_ARG(float)           );
+  test_traits_from( SET_FNTPL_ARG(double)          );
+  test_traits_from( SET_FNTPL_ARG(long double)     );
+  test_traits_from( SET_FNTPL_ARG(MyInt)           );
+  test_traits_from( SET_FNTPL_ARG(MyFloat)         );
+}
+
+int main()
+{
+  std::cout << std::setprecision( std::numeric_limits<long double>::digits10 ) ;
+  
+  test_traits();
+
+  return boost::report_errors();
+}
+//---------------------------------------------------------------------------
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/udt_example_0.cpp

@@ -0,0 +1,242 @@
+// Copyright (C) 2005, Fernando Luis Cacciola Carballal.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+#include "boost/config.hpp"
+#include "boost/utility.hpp"
+#include "boost/limits.hpp"
+#include "boost/utility.hpp"
+
+#include<iostream>
+#include<iomanip>
+#include<string>
+#include<cmath>
+
+
+#include <boost/core/lightweight_test.hpp>
+
+#include "boost/numeric/conversion/cast.hpp"
+
+using namespace std ;
+using namespace boost;
+using namespace numeric;
+
+//
+// This example illustrates how to add support for user defined types (UDTs)
+// to the Boost Numeric Conversion Library.
+// It is assumed that you are familiar with the following documentation:
+//
+//
+
+//
+// The minimum requirement is that boost::is_arithmetic<UDT> evaluates to false
+// (Otherwise the converter code will try to examine the UDT as a built-in type)
+//
+
+//
+// Let's start with the simpliest case of an UDT which supports standard conversions
+//
+struct Double
+{
+  Double( double v ) : mV(v) {}
+
+  operator double() const { return mV ; }
+
+  double mV ;
+} ;
+
+double dv = (numeric_limits<double>::max)() ;
+double fv = (numeric_limits<float >::max)() ;
+Double Dv(dv);
+Double Fv(fv);
+
+void simplest_case()
+{
+  //
+  // conversion_traits<>::udt_builtin_mixture works out of the box as long as boost::is_arithmetic<UDT> yields false
+  //
+  BOOST_TEST( (conversion_traits<double,Double>::udt_builtin_mixture::value == udt_to_builtin) ) ;
+  BOOST_TEST( (conversion_traits<Double,double>::udt_builtin_mixture::value == builtin_to_udt) ) ;
+  BOOST_TEST( (conversion_traits<Double,Double>::udt_builtin_mixture::value == udt_to_udt    ) ) ;
+
+  // BY DEFINITION, a conversion from UDT to Builtin is subranged. No attempt is made to actually compare ranges.
+  BOOST_TEST( (conversion_traits<double,Double>::subranged::value) == true  ) ;
+  BOOST_TEST( (conversion_traits<Double,double>::subranged::value) == false ) ;
+
+
+
+  //
+  // Conversions to/from FLOATING types, if already supported by an UDT
+  // are also supported out-of-the-box by converter<> in its default configuration.
+  //
+  BOOST_TEST( numeric_cast<double>(Dv) == static_cast<double>(Dv) ) ;
+  BOOST_TEST( numeric_cast<Double>(dv) == static_cast<Double>(dv) ) ;
+
+  BOOST_TEST( numeric_cast<float> (Dv) == static_cast<float> (Dv) ) ;
+  BOOST_TEST( numeric_cast<Double>(fv) == static_cast<Double>(fv) ) ;
+
+
+  //
+  // Range checking is disabled by default if an UDT is either the source or target of the conversion.
+  //
+  BOOST_TEST( (converter<float,double>::out_of_range(dv) == cPosOverflow) );
+  BOOST_TEST( (converter<float,Double>::out_of_range(Dv) == cInRange) );
+
+}
+
+//
+// The conversion_traits<> class and therefore the converter<> class looks at
+// numeric_limits<UDT>::is_integer/is_signed to generate the proper float_in and sign mixtures.
+// In most implementations, is_integer/is_signed are both false for UDTs if there is no explicit specialization for it.
+// Therefore, the converter<> will see any UDT for which numeric_limits<> is not specialized as Float AND unsigned.
+// Signess is used in the converter<> for range checking, but range checking is disabled by default for UDTs, so,
+// normally, signess is mostly irrelevant as far as the library is concerned, except for the numeric_traits<>::sign_mixture
+// entry.
+// is_integer, however, is relevant in that if the conversion is from a float type to an integer type, the conversion is
+// "rounding" and the rounder policies will participate.
+// ALL implemented rounder policies require proper definitions for floor(udt) and ceil(udt).
+// These names will be searched for using ADL, so, if you need to convert TO integral types from a UDT,
+// you need to supply those functions along with the UDT in right namespace (that is, any namespace that allows
+// ADL to find them)
+
+// If your UDT doesn't supply floor/ceil, conversions to integer types
+// won't compile unless a custom Float2IntRounder is used.
+
+Double floor ( Double v ) { return Double(std::floor(v.mV)) ; }
+Double ceil  ( Double v ) { return Double(std::ceil (v.mV)) ; }
+
+void rounding()
+{
+  BOOST_TEST( numeric_cast<int>(Dv) == static_cast<int>(Dv) ) ;
+}
+
+
+//
+// If your UDT can't or won't provide floor/ceil you can set-up and use your own
+// Float2IntRounder policy (though doing this is not always required as shown so far)
+//
+struct DoubleToInt
+{
+  static Double nearbyint ( Double const& s ) { return Double(static_cast<int>(s)); }
+
+  typedef mpl::integral_c< std::float_round_style, std::round_toward_zero> round_style ;
+} ;
+
+void custom_rounding()
+{
+  typedef converter<int
+                   ,Double
+                   ,conversion_traits<int,Double>
+                   ,void // By default UDT disable range checking so this won't be used
+                   ,DoubleToInt
+                   >
+                   DoubleToIntConverter ;
+
+   BOOST_TEST( DoubleToIntConverter::convert(Dv) == static_cast<int>(Dv) ) ;
+}
+
+//
+// In the next Level of complexity, your UDTs might not support conversion operators
+//
+struct Float
+{
+  Float( float v ) : mV(v) {}
+
+  float mV ;
+} ;
+
+struct Int
+{
+  Int( int v ) : mV(v) {}
+
+  int mV ;
+} ;
+
+typedef conversion_traits<Int,Float> Float2IntTraits ;
+typedef conversion_traits<Float,Int> Int2FloatTraits ;
+
+namespace boost { namespace numeric
+{
+//
+// Though static_cast<> won't work with them you can still use numeric_cast<> by specializing
+// raw_converter as follows:
+//
+template<> struct raw_converter<Float2IntTraits>
+{
+  typedef Float2IntTraits::result_type   result_type   ;
+  typedef Float2IntTraits::argument_type argument_type ;
+
+  static result_type low_level_convert ( argument_type s ) { return Int((int)s.mV); }
+} ;
+template<> struct raw_converter<Int2FloatTraits>
+{
+  typedef Int2FloatTraits::result_type   result_type   ;
+  typedef Int2FloatTraits::argument_type argument_type ;
+
+  static result_type low_level_convert ( argument_type s ) { return Float(s.mV); }
+} ;
+
+} }
+
+void custom_raw_converter()
+{
+  Float f (12.34);
+  Int   i (12);
+  Float fi(12);
+
+  BOOST_TEST(numeric_cast<Int>  (f).mV == i .mV ) ;
+  BOOST_TEST(numeric_cast<Float>(i).mV == fi.mV ) ;
+}
+
+//
+// Alterntively, the custom raw_converter classes can be defined non-instrusively
+// (not as specializations) and passed along as policies
+//
+struct Float2IntRawConverter
+{
+  static Int low_level_convert ( Float const& s ) { return Int((int)s.mV); }
+} ;
+struct Int2FloatRawConverter
+{
+  static Float low_level_convert ( Int const& s ) { return Float(s.mV); }
+} ;
+
+void custom_raw_converter2()
+{
+  Float f (12.34);
+  Int   i (12);
+  Float fi(12);
+
+  typedef converter<Int
+                   ,Float
+                   ,Float2IntTraits
+                   ,void  // By default UDT disable range checking so this won't be used
+                   ,void  // Float2Int Rounder won't be used if Int isn't marked as integer via numeric_limits<>
+                   ,Float2IntRawConverter
+                   >
+                   Float2IntConverter ;
+
+  BOOST_TEST(Float2IntConverter::convert(f).mV == i .mV ) ;
+}
+
+int main()
+{
+  cout << setprecision( numeric_limits<long double>::digits10 ) ;
+
+  simplest_case();
+  rounding();
+  custom_rounding();
+  custom_raw_converter();
+  custom_raw_converter2();
+
+  return boost::report_errors();
+}
+
+
+
+
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean/test/udt_support_test.cpp

@@ -0,0 +1,309 @@
+// (C) Copyright 2003, Fernando Luis Cacciola Carballal.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+#include<iostream>
+#include<iomanip>
+#include<string>
+#include<typeinfo>
+#include<vector>
+#include<algorithm>
+
+#include "boost/numeric/conversion/converter.hpp"
+
+#ifdef BOOST_BORLANDC
+#pragma hdrstop
+#endif
+
+#include "test_helpers.cpp"
+#include "test_helpers2.cpp"
+#include "test_helpers3.cpp"
+
+using namespace std ;
+using namespace boost ;
+using namespace numeric ;
+using namespace MyUDT ;
+
+//-------------------------------------------------------------------------
+// These are the typical steps that are required to install support for
+// conversions from/to UDT which need special treatment.
+//-------------------------------------------------------------------------
+
+
+
+//
+// (1) Instantiate specific convesions traits.
+//     This step is only for convenience.
+//     These traits instances are required in order to define the specializations
+//     that follow (and which *are required* to make the library work with MyInt and MyFloat)
+//
+namespace MyUDT {
+
+typedef conversion_traits<double , MyFloat> MyFloat_to_double_Traits;
+typedef conversion_traits<int    , MyFloat> MyFloat_to_int_Traits;
+typedef conversion_traits<MyInt  , MyFloat> MyFloat_to_MyInt_Traits;
+typedef conversion_traits<int    , MyInt  > MyInt_to_int_Traits;
+typedef conversion_traits<MyFloat, MyInt  > MyInt_to_MyFloat_Traits;
+typedef conversion_traits<MyInt  , double > double_to_MyInt_Traits;
+
+} // namespace MyUDT
+
+
+//
+// (2) Define suitable raw converters.
+//
+//   Our sample UDTs don't support implicit conversions.
+//   Therefore, the default raw_converter<> doesn't work,
+//   and we need to define our own.
+//
+//   There are two ways of doing this:
+//
+//     (a) One is to simply specialize boost::numeric::raw_converter<> directly.
+//         This way, the default converter will work out of the box, which means, for instance,
+//         that numeric_cast<> can be used with these UDTs.
+//
+//     (b) Define a user class with the appropriate interface and supply it explicitely
+//         as a policy to a converter instance.
+//
+//   This test uses chice (a).
+//
+namespace boost {
+
+namespace numeric {
+
+template<>
+struct raw_converter<MyUDT::MyFloat_to_double_Traits>
+{
+  static double low_level_convert ( MyUDT::MyFloat const&  s )
+    { return s.to_builtin() ; }
+} ;
+
+template<>
+struct raw_converter<MyUDT::MyFloat_to_int_Traits>
+{
+  static int low_level_convert ( MyUDT::MyFloat const& s )
+    { return static_cast<int>( s.to_builtin() ) ; }
+} ;
+
+template<>
+struct raw_converter<MyUDT::MyFloat_to_MyInt_Traits>
+{
+  static MyUDT::MyInt low_level_convert ( MyUDT::MyFloat const& s )
+    { return MyUDT::MyInt( static_cast<int>(s.to_builtin()) ) ; }
+} ;
+
+template<>
+struct raw_converter<MyUDT::MyInt_to_int_Traits>
+{
+  static int low_level_convert ( MyUDT::MyInt const& s ) { return s.to_builtin() ; }
+} ;
+
+template<>
+struct raw_converter<MyUDT::MyInt_to_MyFloat_Traits>
+{
+  static MyUDT::MyFloat low_level_convert ( MyUDT::MyInt const& s )
+    {
+      return MyUDT::MyFloat( static_cast<double>(s.to_builtin()) ) ;
+    }
+} ;
+
+template<>
+struct raw_converter<MyUDT::double_to_MyInt_Traits>
+{
+  static MyUDT::MyInt low_level_convert ( double s )
+    { return MyUDT::MyInt( static_cast<int>(s) ) ; }
+} ;
+
+} // namespace numeric
+
+} // namespace boost
+
+
+
+//
+// (3) Define suitable range checkers
+//
+// By default, if a UDT is involved in a conversion, internal range checking is disabled.
+// This is so because a UDT type can have any sort of range, even unbounded, thus
+// the library doesn't attempt to automatically figure out the appropriate range checking logic.
+// (as it does when builtin types are involved)
+// However, this situation is a bit unsufficient in practice, specially from doing narrowing (subranged)
+// conversions from UDTs.
+// The library provides a rudimentary hook to help this out: The user can plug in his own
+// range checker to the converter instance.
+//
+// This test shows how to define and use a custom range checker.
+//
+
+namespace MyUDT {
+
+//
+// The following are metaprogramming tools to allow us the implement the
+// MyCustomRangeChecker generically, for either builtin or UDT types.
+//
+
+// get_builtin_type<N>::type extracts the built-in type of our UDT's
+//
+template<class N> struct get_builtin_type { typedef N type ; } ;
+template<> struct get_builtin_type<MyInt>   { typedef int type ; } ;
+template<> struct get_builtin_type<MyFloat> { typedef double type ; } ;
+
+// U extract_builtin ( T s ) returns 's' converted to the corresponding built-in type U.
+//   
+template<class N>
+struct extract_builtin
+{
+  static N apply ( N n ) { return n ; }
+} ;
+template<>
+struct extract_builtin<MyInt>
+{
+  static int apply ( MyInt const& n ) { return n.to_builtin() ; }
+} ;
+template<>
+struct extract_builtin<MyFloat>
+{
+  static double apply ( MyFloat const& n ) { return n.to_builtin() ; }
+} ;
+
+template<class Traits>
+struct MyCustomRangeChecker
+{
+  typedef typename Traits::argument_type argument_type ;
+
+  // This custom range checker uses the fact that our 'fake' UDT are merely wrappers
+  // around builtin types; so it just forward the logic to the correspoding range
+  // checkers for the wrapped builtin types.
+  //
+  typedef typename Traits::source_type S ;
+  typedef typename Traits::target_type T ;
+
+  // NOTE: S and/or T can be either UDT or builtin types.
+
+  typedef typename get_builtin_type<S>::type builtinS ;
+  typedef typename get_builtin_type<T>::type builtinT ;
+
+  // NOTE: The internal range checker used by default is *built* when you instantiate
+  // a converter<> with a given Traits according to the properties of the involved types.
+  // Currently, there is no way to instantiate this range checker as a separate class.
+  // However, you can see it as part of the interface of the converter
+  // (since the converter inherits from it)
+  // Therefore, here we instantiate a converter corresponding to the builtin types to access
+  // their associated builtin range checker.
+  //
+  typedef boost::numeric::converter<builtinT,builtinS> InternalConverter ;
+
+  static range_check_result out_of_range ( argument_type s )
+    {
+      return InternalConverter::out_of_range( extract_builtin<S>::apply(s) );
+    }
+
+  static void validate_range ( argument_type s )
+    {
+      return InternalConverter::validate_range( extract_builtin<S>::apply(s) );
+    }
+} ;
+
+} // namespace MyUDT
+
+
+
+
+
+
+
+
+//
+// Test here
+//
+
+void test_udt_conversions_with_defaults()
+{
+  cout << "Testing UDT conversion with default policies\n" ;
+
+  // MyInt <--> int
+
+    int mibv = rand();
+    MyInt miv(mibv);
+    TEST_SUCCEEDING_CONVERSION_DEF(MyInt,int,miv,mibv);
+    TEST_SUCCEEDING_CONVERSION_DEF(int,MyInt,mibv,miv);
+
+  // MyFloat <--> double
+
+    double mfbv = static_cast<double>(rand()) / 3.0 ;
+    MyFloat mfv (mfbv);
+    TEST_SUCCEEDING_CONVERSION_DEF(MyFloat,double,mfv,mfbv);
+    TEST_SUCCEEDING_CONVERSION_DEF(double,MyFloat,mfbv,mfv);
+
+  // MyInt <--> MyFloat
+
+    MyInt   miv2  ( static_cast<int>(mfbv) );
+    MyFloat miv2F ( static_cast<int>(mfbv) );
+    MyFloat mfv2  ( static_cast<double>(mibv) );
+    MyInt   mfv2I ( static_cast<double>(mibv) );
+    TEST_SUCCEEDING_CONVERSION_DEF(MyFloat,MyInt,miv2F,miv2);
+    TEST_SUCCEEDING_CONVERSION_DEF(MyInt,MyFloat,mfv2I,mfv2);
+}
+
+template<class T, class S>
+struct GenerateCustomConverter
+{
+  typedef conversion_traits<T,S> Traits;
+
+  typedef def_overflow_handler         OverflowHandler ;
+  typedef Trunc<S>                     Float2IntRounder ;
+  typedef raw_converter<Traits>        RawConverter ;
+  typedef MyCustomRangeChecker<Traits> RangeChecker ;
+
+  typedef converter<T,S,Traits,OverflowHandler,Float2IntRounder,RawConverter,RangeChecker> type ;
+} ;
+
+void test_udt_conversions_with_custom_range_checking()
+{
+  cout << "Testing UDT conversions with custom range checker\n" ;
+
+  int mibv = rand();
+  MyFloat mfv ( static_cast<double>(mibv) );
+
+  typedef GenerateCustomConverter<MyFloat,int>::type int_to_MyFloat_Conv ;
+
+  TEST_SUCCEEDING_CONVERSION( int_to_MyFloat_Conv, MyFloat, int, mfv, mibv );
+
+  int mibv2 = rand();
+  MyInt miv (mibv2);
+  MyFloat mfv2 ( static_cast<double>(mibv2) );
+
+  typedef GenerateCustomConverter<MyFloat,MyInt>::type MyInt_to_MyFloat_Conv ;
+
+  TEST_SUCCEEDING_CONVERSION( MyInt_to_MyFloat_Conv, MyFloat, MyInt, mfv2, miv );
+
+  double mfbv = bounds<double>::highest();
+  typedef GenerateCustomConverter<MyInt,double>::type double_to_MyInt_Conv ;
+
+  TEST_POS_OVERFLOW_CONVERSION( double_to_MyInt_Conv, MyInt, double, mfbv );
+
+  MyFloat mfv3 ( bounds<double>::lowest() ) ;
+  typedef GenerateCustomConverter<int,MyFloat>::type MyFloat_to_int_Conv ;
+
+  TEST_NEG_OVERFLOW_CONVERSION( MyFloat_to_int_Conv, int, MyFloat, mfv3 );
+}
+
+
+int main()
+{
+  cout << setprecision( numeric_limits<long double>::digits10 ) ;
+
+  test_udt_conversions_with_defaults();
+  test_udt_conversions_with_custom_range_checking();
+
+  return boost::report_errors();
+}
+
+
+
+
+
+

externals/vcpkg/buildtrees/boost-numeric-conversion/stdout-x64-windows.log

@@ -0,0 +1,7 @@
+-- Downloading https://github.com/boostorg/numeric_conversion/archive/boost-1.79.0.tar.gz -> boostorg-numeric_conversion-boost-1.79.0.tar.gz...
+-- Extracting source D:/a/1/s/externals/vcpkg/downloads/boostorg-numeric_conversion-boost-1.79.0.tar.gz
+-- Using source at D:/a/1/s/externals/vcpkg/buildtrees/boost-numeric-conversion/src/ost-1.79.0-5892db6ff3.clean
+-- Copying headers
+-- Copying headers done
+-- Installing: D:/a/1/s/externals/vcpkg/packages/boost-numeric-conversion_x64-windows/share/boost-numeric-conversion/usage
+-- Installing: D:/a/1/s/externals/vcpkg/packages/boost-numeric-conversion_x64-windows/share/boost-numeric-conversion/copyright

externals/vcpkg/buildtrees/boost-numeric-conversion/x64-windows.vcpkg_abi_info.txt

@@ -0,0 +1,19 @@
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