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CRTLinkage: dynamic
LibraryLinkage: dynamic

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Package: boost-functional
Version: 1.79.0
Depends: boost-config, boost-core, boost-function, boost-function-types, boost-mpl, boost-preprocessor, boost-type-traits, boost-typeof, boost-utility, boost-vcpkg-helpers
Architecture: x64-windows
Multi-Arch: same
Abi: 6be3ea961fdc499971f8a2284ab4cb29493415741007ea2aaebd4f06566a0077
Description: Boost functional module
Type: Port

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// ------------------------------------------------------------------------------
// Copyright (c) 2000 Cadenza New Zealand Ltd
// Distributed under the Boost Software License, Version 1.0. (See accompany-
// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// ------------------------------------------------------------------------------
// Boost functional.hpp header file
// See http://www.boost.org/libs/functional for documentation.
// ------------------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------------------
#ifndef BOOST_FUNCTIONAL_HPP
#define BOOST_FUNCTIONAL_HPP
#include <boost/config.hpp>
#include <boost/call_traits.hpp>
#include <functional>
namespace boost
{
namespace functional
{
namespace detail {
#if defined(_HAS_AUTO_PTR_ETC) && !_HAS_AUTO_PTR_ETC
// std::unary_function and std::binary_function were both removed
// in C++17.
template <typename Arg1, typename Result>
struct unary_function
{
typedef Arg1 argument_type;
typedef Result result_type;
};
template <typename Arg1, typename Arg2, typename Result>
struct binary_function
{
typedef Arg1 first_argument_type;
typedef Arg2 second_argument_type;
typedef Result result_type;
};
#else
// Use the standard objects when we have them.
using std::unary_function;
using std::binary_function;
#endif
}
}
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
// --------------------------------------------------------------------------
// The following traits classes allow us to avoid the need for ptr_fun
// because the types of arguments and the result of a function can be
// deduced.
//
// In addition to the standard types defined in unary_function and
// binary_function, we add
//
// - function_type, the type of the function or function object itself.
//
// - param_type, the type that should be used for passing the function or
// function object as an argument.
// --------------------------------------------------------------------------
namespace detail
{
template <class Operation>
struct unary_traits_imp;
template <class Operation>
struct unary_traits_imp<Operation*>
{
typedef Operation function_type;
typedef const function_type & param_type;
typedef typename Operation::result_type result_type;
typedef typename Operation::argument_type argument_type;
};
template <class R, class A>
struct unary_traits_imp<R(*)(A)>
{
typedef R (*function_type)(A);
typedef R (*param_type)(A);
typedef R result_type;
typedef A argument_type;
};
template <class Operation>
struct binary_traits_imp;
template <class Operation>
struct binary_traits_imp<Operation*>
{
typedef Operation function_type;
typedef const function_type & param_type;
typedef typename Operation::result_type result_type;
typedef typename Operation::first_argument_type first_argument_type;
typedef typename Operation::second_argument_type second_argument_type;
};
template <class R, class A1, class A2>
struct binary_traits_imp<R(*)(A1,A2)>
{
typedef R (*function_type)(A1,A2);
typedef R (*param_type)(A1,A2);
typedef R result_type;
typedef A1 first_argument_type;
typedef A2 second_argument_type;
};
} // namespace detail
template <class Operation>
struct unary_traits
{
typedef typename detail::unary_traits_imp<Operation*>::function_type function_type;
typedef typename detail::unary_traits_imp<Operation*>::param_type param_type;
typedef typename detail::unary_traits_imp<Operation*>::result_type result_type;
typedef typename detail::unary_traits_imp<Operation*>::argument_type argument_type;
};
template <class R, class A>
struct unary_traits<R(*)(A)>
{
typedef R (*function_type)(A);
typedef R (*param_type)(A);
typedef R result_type;
typedef A argument_type;
};
template <class Operation>
struct binary_traits
{
typedef typename detail::binary_traits_imp<Operation*>::function_type function_type;
typedef typename detail::binary_traits_imp<Operation*>::param_type param_type;
typedef typename detail::binary_traits_imp<Operation*>::result_type result_type;
typedef typename detail::binary_traits_imp<Operation*>::first_argument_type first_argument_type;
typedef typename detail::binary_traits_imp<Operation*>::second_argument_type second_argument_type;
};
template <class R, class A1, class A2>
struct binary_traits<R(*)(A1,A2)>
{
typedef R (*function_type)(A1,A2);
typedef R (*param_type)(A1,A2);
typedef R result_type;
typedef A1 first_argument_type;
typedef A2 second_argument_type;
};
#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
// --------------------------------------------------------------------------
// If we have no partial specialisation available, decay to a situation
// that is no worse than in the Standard, i.e., ptr_fun will be required.
// --------------------------------------------------------------------------
template <class Operation>
struct unary_traits
{
typedef Operation function_type;
typedef const Operation& param_type;
typedef typename Operation::result_type result_type;
typedef typename Operation::argument_type argument_type;
};
template <class Operation>
struct binary_traits
{
typedef Operation function_type;
typedef const Operation & param_type;
typedef typename Operation::result_type result_type;
typedef typename Operation::first_argument_type first_argument_type;
typedef typename Operation::second_argument_type second_argument_type;
};
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
// --------------------------------------------------------------------------
// unary_negate, not1
// --------------------------------------------------------------------------
template <class Predicate>
class unary_negate
: public boost::functional::detail::unary_function<typename unary_traits<Predicate>::argument_type,bool>
{
public:
explicit unary_negate(typename unary_traits<Predicate>::param_type x)
:
pred(x)
{}
bool operator()(typename call_traits<typename unary_traits<Predicate>::argument_type>::param_type x) const
{
return !pred(x);
}
private:
typename unary_traits<Predicate>::function_type pred;
};
template <class Predicate>
unary_negate<Predicate> not1(const Predicate &pred)
{
// The cast is to placate Borland C++Builder in certain circumstances.
// I don't think it should be necessary.
return unary_negate<Predicate>((typename unary_traits<Predicate>::param_type)pred);
}
template <class Predicate>
unary_negate<Predicate> not1(Predicate &pred)
{
return unary_negate<Predicate>(pred);
}
// --------------------------------------------------------------------------
// binary_negate, not2
// --------------------------------------------------------------------------
template <class Predicate>
class binary_negate
: public boost::functional::detail::binary_function<
typename binary_traits<Predicate>::first_argument_type,
typename binary_traits<Predicate>::second_argument_type,
bool>
{
public:
explicit binary_negate(typename binary_traits<Predicate>::param_type x)
:
pred(x)
{}
bool operator()(typename call_traits<typename binary_traits<Predicate>::first_argument_type>::param_type x,
typename call_traits<typename binary_traits<Predicate>::second_argument_type>::param_type y) const
{
return !pred(x,y);
}
private:
typename binary_traits<Predicate>::function_type pred;
};
template <class Predicate>
binary_negate<Predicate> not2(const Predicate &pred)
{
// The cast is to placate Borland C++Builder in certain circumstances.
// I don't think it should be necessary.
return binary_negate<Predicate>((typename binary_traits<Predicate>::param_type)pred);
}
template <class Predicate>
binary_negate<Predicate> not2(Predicate &pred)
{
return binary_negate<Predicate>(pred);
}
// --------------------------------------------------------------------------
// binder1st, bind1st
// --------------------------------------------------------------------------
template <class Operation>
class binder1st
: public boost::functional::detail::unary_function<
typename binary_traits<Operation>::second_argument_type,
typename binary_traits<Operation>::result_type>
{
public:
binder1st(typename binary_traits<Operation>::param_type x,
typename call_traits<typename binary_traits<Operation>::first_argument_type>::param_type y)
:
op(x), value(y)
{}
typename binary_traits<Operation>::result_type
operator()(typename call_traits<typename binary_traits<Operation>::second_argument_type>::param_type x) const
{
return op(value, x);
}
protected:
typename binary_traits<Operation>::function_type op;
typename binary_traits<Operation>::first_argument_type value;
};
template <class Operation>
inline binder1st<Operation> bind1st(const Operation &op,
typename call_traits<
typename binary_traits<Operation>::first_argument_type
>::param_type x)
{
// The cast is to placate Borland C++Builder in certain circumstances.
// I don't think it should be necessary.
return binder1st<Operation>((typename binary_traits<Operation>::param_type)op, x);
}
template <class Operation>
inline binder1st<Operation> bind1st(Operation &op,
typename call_traits<
typename binary_traits<Operation>::first_argument_type
>::param_type x)
{
return binder1st<Operation>(op, x);
}
// --------------------------------------------------------------------------
// binder2nd, bind2nd
// --------------------------------------------------------------------------
template <class Operation>
class binder2nd
: public boost::functional::detail::unary_function<
typename binary_traits<Operation>::first_argument_type,
typename binary_traits<Operation>::result_type>
{
public:
binder2nd(typename binary_traits<Operation>::param_type x,
typename call_traits<typename binary_traits<Operation>::second_argument_type>::param_type y)
:
op(x), value(y)
{}
typename binary_traits<Operation>::result_type
operator()(typename call_traits<typename binary_traits<Operation>::first_argument_type>::param_type x) const
{
return op(x, value);
}
protected:
typename binary_traits<Operation>::function_type op;
typename binary_traits<Operation>::second_argument_type value;
};
template <class Operation>
inline binder2nd<Operation> bind2nd(const Operation &op,
typename call_traits<
typename binary_traits<Operation>::second_argument_type
>::param_type x)
{
// The cast is to placate Borland C++Builder in certain circumstances.
// I don't think it should be necessary.
return binder2nd<Operation>((typename binary_traits<Operation>::param_type)op, x);
}
template <class Operation>
inline binder2nd<Operation> bind2nd(Operation &op,
typename call_traits<
typename binary_traits<Operation>::second_argument_type
>::param_type x)
{
return binder2nd<Operation>(op, x);
}
// --------------------------------------------------------------------------
// mem_fun, etc
// --------------------------------------------------------------------------
template <class S, class T>
class mem_fun_t : public boost::functional::detail::unary_function<T*, S>
{
public:
explicit mem_fun_t(S (T::*p)())
:
ptr(p)
{}
S operator()(T* p) const
{
return (p->*ptr)();
}
private:
S (T::*ptr)();
};
template <class S, class T, class A>
class mem_fun1_t : public boost::functional::detail::binary_function<T*, A, S>
{
public:
explicit mem_fun1_t(S (T::*p)(A))
:
ptr(p)
{}
S operator()(T* p, typename call_traits<A>::param_type x) const
{
return (p->*ptr)(x);
}
private:
S (T::*ptr)(A);
};
template <class S, class T>
class const_mem_fun_t : public boost::functional::detail::unary_function<const T*, S>
{
public:
explicit const_mem_fun_t(S (T::*p)() const)
:
ptr(p)
{}
S operator()(const T* p) const
{
return (p->*ptr)();
}
private:
S (T::*ptr)() const;
};
template <class S, class T, class A>
class const_mem_fun1_t : public boost::functional::detail::binary_function<const T*, A, S>
{
public:
explicit const_mem_fun1_t(S (T::*p)(A) const)
:
ptr(p)
{}
S operator()(const T* p, typename call_traits<A>::param_type x) const
{
return (p->*ptr)(x);
}
private:
S (T::*ptr)(A) const;
};
template<class S, class T>
inline mem_fun_t<S,T> mem_fun(S (T::*f)())
{
return mem_fun_t<S,T>(f);
}
template<class S, class T, class A>
inline mem_fun1_t<S,T,A> mem_fun(S (T::*f)(A))
{
return mem_fun1_t<S,T,A>(f);
}
#ifndef BOOST_NO_POINTER_TO_MEMBER_CONST
template<class S, class T>
inline const_mem_fun_t<S,T> mem_fun(S (T::*f)() const)
{
return const_mem_fun_t<S,T>(f);
}
template<class S, class T, class A>
inline const_mem_fun1_t<S,T,A> mem_fun(S (T::*f)(A) const)
{
return const_mem_fun1_t<S,T,A>(f);
}
#endif // BOOST_NO_POINTER_TO_MEMBER_CONST
// --------------------------------------------------------------------------
// mem_fun_ref, etc
// --------------------------------------------------------------------------
template <class S, class T>
class mem_fun_ref_t : public boost::functional::detail::unary_function<T&, S>
{
public:
explicit mem_fun_ref_t(S (T::*p)())
:
ptr(p)
{}
S operator()(T& p) const
{
return (p.*ptr)();
}
private:
S (T::*ptr)();
};
template <class S, class T, class A>
class mem_fun1_ref_t : public boost::functional::detail::binary_function<T&, A, S>
{
public:
explicit mem_fun1_ref_t(S (T::*p)(A))
:
ptr(p)
{}
S operator()(T& p, typename call_traits<A>::param_type x) const
{
return (p.*ptr)(x);
}
private:
S (T::*ptr)(A);
};
template <class S, class T>
class const_mem_fun_ref_t : public boost::functional::detail::unary_function<const T&, S>
{
public:
explicit const_mem_fun_ref_t(S (T::*p)() const)
:
ptr(p)
{}
S operator()(const T &p) const
{
return (p.*ptr)();
}
private:
S (T::*ptr)() const;
};
template <class S, class T, class A>
class const_mem_fun1_ref_t : public boost::functional::detail::binary_function<const T&, A, S>
{
public:
explicit const_mem_fun1_ref_t(S (T::*p)(A) const)
:
ptr(p)
{}
S operator()(const T& p, typename call_traits<A>::param_type x) const
{
return (p.*ptr)(x);
}
private:
S (T::*ptr)(A) const;
};
template<class S, class T>
inline mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)())
{
return mem_fun_ref_t<S,T>(f);
}
template<class S, class T, class A>
inline mem_fun1_ref_t<S,T,A> mem_fun_ref(S (T::*f)(A))
{
return mem_fun1_ref_t<S,T,A>(f);
}
#ifndef BOOST_NO_POINTER_TO_MEMBER_CONST
template<class S, class T>
inline const_mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)() const)
{
return const_mem_fun_ref_t<S,T>(f);
}
template<class S, class T, class A>
inline const_mem_fun1_ref_t<S,T,A> mem_fun_ref(S (T::*f)(A) const)
{
return const_mem_fun1_ref_t<S,T,A>(f);
}
#endif // BOOST_NO_POINTER_TO_MEMBER_CONST
// --------------------------------------------------------------------------
// ptr_fun
// --------------------------------------------------------------------------
template <class Arg, class Result>
class pointer_to_unary_function : public boost::functional::detail::unary_function<Arg,Result>
{
public:
explicit pointer_to_unary_function(Result (*f)(Arg))
:
func(f)
{}
Result operator()(typename call_traits<Arg>::param_type x) const
{
return func(x);
}
private:
Result (*func)(Arg);
};
template <class Arg, class Result>
inline pointer_to_unary_function<Arg,Result> ptr_fun(Result (*f)(Arg))
{
return pointer_to_unary_function<Arg,Result>(f);
}
template <class Arg1, class Arg2, class Result>
class pointer_to_binary_function : public boost::functional::detail::binary_function<Arg1,Arg2,Result>
{
public:
explicit pointer_to_binary_function(Result (*f)(Arg1, Arg2))
:
func(f)
{}
Result operator()(typename call_traits<Arg1>::param_type x, typename call_traits<Arg2>::param_type y) const
{
return func(x,y);
}
private:
Result (*func)(Arg1, Arg2);
};
template <class Arg1, class Arg2, class Result>
inline pointer_to_binary_function<Arg1,Arg2,Result> ptr_fun(Result (*f)(Arg1, Arg2))
{
return pointer_to_binary_function<Arg1,Arg2,Result>(f);
}
} // namespace boost
#endif

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/*
Copyright 2007 Tobias Schwinger
Copyright 2019 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_FUNCTIONAL_FACTORY_HPP
#define BOOST_FUNCTIONAL_FACTORY_HPP
#include <boost/config.hpp>
#include <boost/core/empty_value.hpp>
#include <boost/core/pointer_traits.hpp>
#include <boost/type_traits/remove_cv.hpp>
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
#include <memory>
#endif
#include <new>
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#include <utility>
#endif
namespace boost {
enum factory_alloc_propagation {
factory_alloc_for_pointee_and_deleter,
factory_passes_alloc_to_smart_pointer
};
namespace detail {
template<factory_alloc_propagation>
struct fc_tag { };
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
template<class A, class T>
struct fc_rebind {
typedef typename std::allocator_traits<A>::template rebind_alloc<T> type;
};
template<class A>
struct fc_pointer {
typedef typename std::allocator_traits<A>::pointer type;
};
#else
template<class A, class T>
struct fc_rebind {
typedef typename A::template rebind<T>::other type;
};
template<class A>
struct fc_pointer {
typedef typename A::pointer type;
};
#endif
#if !defined(BOOST_NO_CXX11_ALLOCATOR) && \
!defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template<class A, class T>
inline void
fc_destroy(A& a, T* p)
{
std::allocator_traits<A>::destroy(a, p);
}
#else
template<class A, class T>
inline void
fc_destroy(A&, T* p)
{
p->~T();
}
#endif
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
template<class A, class T, class... Args>
inline void
fc_construct(A& a, T* p, Args&&... args)
{
std::allocator_traits<A>::construct(a, p, std::forward<Args>(args)...);
}
#else
template<class A, class T, class... Args>
inline void
fc_construct(A&, T* p, Args&&... args)
{
::new((void*)p) T(std::forward<Args>(args)...);
}
#endif
#endif
template<class A>
class fc_delete
: boost::empty_value<A> {
typedef boost::empty_value<A> base;
public:
explicit fc_delete(const A& a) BOOST_NOEXCEPT
: base(boost::empty_init_t(), a) { }
void operator()(typename fc_pointer<A>::type p) {
boost::detail::fc_destroy(base::get(), boost::to_address(p));
base::get().deallocate(p, 1);
}
};
template<class R, class A>
class fc_allocate {
public:
explicit fc_allocate(const A& a)
: a_(a)
, p_(a_.allocate(1)) { }
~fc_allocate() {
if (p_) {
a_.deallocate(p_, 1);
}
}
A& state() BOOST_NOEXCEPT {
return a_;
}
typename A::value_type* get() const BOOST_NOEXCEPT {
return boost::to_address(p_);
}
R release(fc_tag<factory_alloc_for_pointee_and_deleter>) {
return R(release(), fc_delete<A>(a_), a_);
}
R release(fc_tag<factory_passes_alloc_to_smart_pointer>) {
return R(release(), fc_delete<A>(a_));
}
private:
typedef typename fc_pointer<A>::type pointer;
pointer release() BOOST_NOEXCEPT {
pointer p = p_;
p_ = pointer();
return p;
}
fc_allocate(const fc_allocate&);
fc_allocate& operator=(const fc_allocate&);
A a_;
pointer p_;
};
} /* detail */
template<class Pointer, class Allocator = void,
factory_alloc_propagation Policy = factory_alloc_for_pointee_and_deleter>
class factory;
template<class Pointer, factory_alloc_propagation Policy>
class factory<Pointer, void, Policy> {
public:
typedef typename remove_cv<Pointer>::type result_type;
private:
typedef typename pointer_traits<result_type>::element_type type;
public:
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template<class... Args>
result_type operator()(Args&&... args) const {
return result_type(new type(std::forward<Args>(args)...));
}
#else
result_type operator()() const {
return result_type(new type());
}
template<class A0>
result_type operator()(A0& a0) const {
return result_type(new type(a0));
}
template<class A0, class A1>
result_type operator()(A0& a0, A1& a1) const {
return result_type(new type(a0, a1));
}
template<class A0, class A1, class A2>
result_type operator()(A0& a0, A1& a1, A2& a2) const {
return result_type(new type(a0, a1, a2));
}
template<class A0, class A1, class A2, class A3>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3) const {
return result_type(new type(a0, a1, a2, a3));
}
template<class A0, class A1, class A2, class A3, class A4>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4) const {
return result_type(new type(a0, a1, a2, a3, a4));
}
template<class A0, class A1, class A2, class A3, class A4, class A5>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4,
A5& a5) const {
return result_type(new type(a0, a1, a2, a3, a4, a5));
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6) const {
return result_type(new type(a0, a1, a2, a3, a4, a5, a6));
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7) const {
return result_type(new type(a0, a1, a2, a3, a4, a5, a6, a7));
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7, class A8>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7, A8& a8) const {
return result_type(new type(a0, a1, a2, a3, a4, a5, a6, a7, a8));
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7, class A8, class A9>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7, A8& a8, A9& a9) const {
return result_type(new type(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9));
}
#endif
};
template<class Pointer, class Allocator, factory_alloc_propagation Policy>
class factory
: empty_value<typename detail::fc_rebind<Allocator,
typename pointer_traits<typename
remove_cv<Pointer>::type>::element_type>::type> {
public:
typedef typename remove_cv<Pointer>::type result_type;
private:
typedef typename pointer_traits<result_type>::element_type type;
typedef typename detail::fc_rebind<Allocator, type>::type allocator;
typedef empty_value<allocator> base;
public:
factory() BOOST_NOEXCEPT
: base(empty_init_t()) { }
explicit factory(const Allocator& a) BOOST_NOEXCEPT
: base(empty_init_t(), a) { }
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template<class... Args>
result_type operator()(Args&&... args) const {
detail::fc_allocate<result_type, allocator> s(base::get());
detail::fc_construct(s.state(), s.get(), std::forward<Args>(args)...);
return s.release(detail::fc_tag<Policy>());
}
#else
result_type operator()() const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type();
return s.release(detail::fc_tag<Policy>());
}
template<class A0>
result_type operator()(A0& a0) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1>
result_type operator()(A0& a0, A1& a1) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2>
result_type operator()(A0& a0, A1& a1, A2& a2) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3, class A4>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3, a4);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3, class A4, class A5>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4,
A5& a5) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6, a7);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7, class A8>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7, A8& a8) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6, a7, a8);
return s.release(detail::fc_tag<Policy>());
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7, class A8, class A9>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7, A8& a8, A9& a9) const {
detail::fc_allocate<result_type, allocator> s(base::get());
::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
return s.release(detail::fc_tag<Policy>());
}
#endif
};
template<class Pointer, class Allocator, factory_alloc_propagation Policy>
class factory<Pointer&, Allocator, Policy> { };
} /* boost */
#endif

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@@ -0,0 +1,501 @@
/*=============================================================================
Copyright (c) 2007-2008 Tobias Schwinger
Use modification and distribution are 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).
==============================================================================*/
#ifndef BOOST_FUNCTIONAL_FORWARD_ADAPTER_HPP_INCLUDED
# ifndef BOOST_PP_IS_ITERATING
# include <boost/config.hpp>
# include <boost/config/workaround.hpp>
# include <boost/preprocessor/iteration/iterate.hpp>
# include <boost/preprocessor/repetition/enum_params.hpp>
# include <boost/preprocessor/repetition/enum_binary_params.hpp>
# include <boost/preprocessor/facilities/intercept.hpp>
# include <boost/preprocessor/arithmetic/dec.hpp>
# include <boost/utility/result_of.hpp>
# ifndef BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY
# define BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY 6
# elif BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY < 3
# undef BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY
# define BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY 3
# endif
namespace boost
{
template< typename Function, int Arity_Or_MinArity = -1, int MaxArity = -1 >
class forward_adapter;
//----- ---- --- -- - - - -
namespace detail
{
template< class MostDerived, typename Function, typename FunctionConst,
int Arity, int MinArity >
struct forward_adapter_impl;
struct forward_adapter_result
{
template< typename Sig > struct apply;
// Utility metafunction for qualification adjustment on arguments
template< typename T > struct q { typedef T const t; };
template< typename T > struct q<T const> { typedef T const t; };
template< typename T > struct q<T &> { typedef T t; };
// Utility metafunction to choose target function qualification
template< typename T > struct c
{ typedef typename T::target_function_t t; };
template< typename T > struct c<T& >
{ typedef typename T::target_function_t t; };
template< typename T > struct c<T const >
{ typedef typename T::target_function_const_t t; };
template< typename T > struct c<T const&>
{ typedef typename T::target_function_const_t t; };
};
}
# define BOOST_TMP_MACRO(f,fn,fc) \
boost::detail::forward_adapter_impl< \
forward_adapter<f,Arity_Or_MinArity,MaxArity>, fn, fc, \
(MaxArity!=-1? MaxArity :Arity_Or_MinArity!=-1? Arity_Or_MinArity \
:BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY), \
(Arity_Or_MinArity!=-1? Arity_Or_MinArity : 0) >
template< typename Function, int Arity_Or_MinArity, int MaxArity >
class forward_adapter
: public BOOST_TMP_MACRO(Function,Function,Function const)
, private Function
{
public:
forward_adapter(Function const& f = Function())
: Function(f)
{ }
typedef Function target_function_t;
typedef Function const target_function_const_t;
Function & target_function() { return *this; }
Function const & target_function() const { return *this; }
template< typename Sig > struct result
: detail::forward_adapter_result::template apply<Sig>
{ };
using BOOST_TMP_MACRO(Function,Function, Function const)::operator();
};
template< typename Function, int Arity_Or_MinArity, int MaxArity >
class forward_adapter< Function const, Arity_Or_MinArity, MaxArity >
: public BOOST_TMP_MACRO(Function const, Function const, Function const)
, private Function
{
public:
forward_adapter(Function const& f = Function())
: Function(f)
{ }
typedef Function const target_function_t;
typedef Function const target_function_const_t;
Function const & target_function() const { return *this; }
template< typename Sig > struct result
: detail::forward_adapter_result::template apply<Sig>
{ };
using BOOST_TMP_MACRO(Function const,Function const, Function const)
::operator();
};
template< typename Function, int Arity_Or_MinArity, int MaxArity >
class forward_adapter< Function &, Arity_Or_MinArity, MaxArity >
: public BOOST_TMP_MACRO(Function&, Function, Function)
{
Function& ref_function;
public:
forward_adapter(Function& f)
: ref_function(f)
{ }
typedef Function target_function_t;
typedef Function target_function_const_t;
Function & target_function() const { return this->ref_function; }
template< typename Sig > struct result
: detail::forward_adapter_result::template apply<Sig>
{ };
using BOOST_TMP_MACRO(Function&, Function, Function)::operator();
};
#undef BOOST_TMP_MACRO
namespace detail
{
template< class Self >
struct forward_adapter_result::apply< Self() >
: boost::result_of< BOOST_DEDUCED_TYPENAME c<Self>::t() >
{ };
// WHen operator()() doesn't have any parameters, it can't
// be templatized and can't use SFINAE, so intead use class
// template parameter SFINAE to decide whether to instantiate it.
template <typename T, typename R = void>
struct forward_adapter_sfinae
{
typedef T type;
};
// This is the fallback for when there isn't an operator()(),
// need to create an operator() that will never instantiate
// so that using parent::operator() will work okay.
template< class MD, class F, class FC, class Enable = void>
struct forward_adapter_impl_zero
{
template <typename T> struct never_instantiate {};
template <typename T>
typename never_instantiate<T>::type operator()(T) const {}
};
template< class MD, class F, class FC>
struct forward_adapter_impl_zero<MD, F, FC,
typename forward_adapter_sfinae<typename boost::result_of< FC() >::type>::type>
{
inline typename boost::result_of< FC() >::type
operator()() const
{
return static_cast<MD const*>(this)->target_function()();
}
inline typename boost::result_of< F() >::type
operator()()
{
return static_cast<MD*>(this)->target_function()();
}
};
template< class MD, class F, class FC >
struct forward_adapter_impl<MD,F,FC,0,0>
: forward_adapter_impl_zero<MD,F,FC>
{
using forward_adapter_impl_zero<MD,F,FC>::operator();
// closing brace gets generated by preprocessing code, below
# define BOOST_TMP_MACRO(tpl_params,arg_types,params,args) \
template< tpl_params > \
inline typename boost::result_of< FC(arg_types) >::type \
operator()(params) const \
{ \
return static_cast<MD const*>(this)->target_function()(args); \
} \
template< tpl_params > \
inline typename boost::result_of< F(arg_types)>::type \
operator()(params) \
{ \
return static_cast<MD*>(this)->target_function()(args); \
}
# // This is the total number of iterations we need
# define count ((1 << BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY+1)-2)
# // Chain file iteration to virtually one loop
# if BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY <= 7
# define limit1 count
# define limit2 0
# define limit3 0
# else
# if BOOST_FUNCTIONAL_FORWARD_ADAPTER_MAX_ARITY <= 15
# define limit1 (count >> 8)
# define limit2 255
# define limit3 0
# else
# define limit1 (count >> 16)
# define limit2 255
# define limit3 255
# endif
# endif
# define N 0
# define BOOST_PP_FILENAME_1 <boost/functional/forward_adapter.hpp>
# define BOOST_PP_ITERATION_LIMITS (0,limit1)
# include BOOST_PP_ITERATE()
# undef N
# undef limit3
# undef limit2
# undef limit1
# undef count
# undef BOOST_TMP_MACRO
};
} // namespace detail
template<class F, int A0, int A1>
struct result_of<boost::forward_adapter<F,A0,A1> const ()>
: boost::detail::forward_adapter_result::template apply<
boost::forward_adapter<F,A0,A1> const () >
{ };
template<class F, int A0, int A1>
struct result_of<boost::forward_adapter<F,A0,A1>()>
: boost::detail::forward_adapter_result::template apply<
boost::forward_adapter<F,A0,A1>() >
{ };
template<class F, int A0, int A1>
struct result_of<boost::forward_adapter<F,A0,A1> const& ()>
: boost::detail::forward_adapter_result::template apply<
boost::forward_adapter<F,A0,A1> const () >
{ };
template<class F, int A0, int A1>
struct result_of<boost::forward_adapter<F,A0,A1>& ()>
: boost::detail::forward_adapter_result::template apply<
boost::forward_adapter<F,A0,A1>() >
{ };
}
# define BOOST_FUNCTIONAL_FORWARD_ADAPTER_HPP_INCLUDED
# elif BOOST_PP_ITERATION_DEPTH() == 1 && limit2
# define BOOST_PP_FILENAME_2 <boost/functional/forward_adapter.hpp>
# define BOOST_PP_ITERATION_LIMITS (0,limit2)
# include BOOST_PP_ITERATE()
# elif BOOST_PP_ITERATION_DEPTH() == 2 && limit3
# define BOOST_PP_FILENAME_3 <boost/functional/forward_adapter.hpp>
# define BOOST_PP_ITERATION_LIMITS (0,limit3)
# include BOOST_PP_ITERATE()
# else
# // I is the loop counter
# if limit2 && limit3
# define I (BOOST_PP_ITERATION_1 << 16 | BOOST_PP_ITERATION_2 << 8 | \
BOOST_PP_ITERATION_3)
# elif limit2
# define I (BOOST_PP_ITERATION_1 << 8 | BOOST_PP_ITERATION_2)
# else
# define I BOOST_PP_ITERATION_1
# endif
# if I < count
# // Done for this arity? Increment N
# if (I+2 >> N+1)
# if N == 0
# undef N
# define N 1
# elif N == 1
# undef N
# define N 2
# elif N == 2
# undef N
# define N 3
# elif N == 3
# undef N
# define N 4
# elif N == 4
# undef N
# define N 5
# elif N == 5
# undef N
# define N 6
# elif N == 6
# undef N
# define N 7
# elif N == 7
# undef N
# define N 8
# elif N == 8
# undef N
# define N 9
# elif N == 9
# undef N
# define N 10
# elif N == 10
# undef N
# define N 11
# elif N == 11
# undef N
# define N 12
# elif N == 12
# undef N
# define N 13
# elif N == 13
# undef N
# define N 14
# elif N == 14
# undef N
# define N 15
# elif N == 15
# undef N
# define N 16
# endif
};
template< class Self, BOOST_PP_ENUM_PARAMS(N,typename T) >
struct forward_adapter_result::apply< Self(BOOST_PP_ENUM_PARAMS(N,T)) >
: boost::result_of<
BOOST_DEDUCED_TYPENAME c<Self>::t(BOOST_PP_ENUM_BINARY_PARAMS(N,
typename q<T,>::t& BOOST_PP_INTERCEPT)) >
{ };
template< class MD, class F, class FC >
struct forward_adapter_impl<MD,F,FC,BOOST_PP_DEC(N),N>
{
template< BOOST_PP_ENUM_PARAMS(N,typename T) >
inline typename boost::result_of< F(
BOOST_PP_ENUM_BINARY_PARAMS(N,T,& BOOST_PP_INTERCEPT)) >::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,& BOOST_PP_INTERCEPT));
};
template< class MD, class F, class FC, int MinArity >
struct forward_adapter_impl<MD,F,FC,N,MinArity>
: forward_adapter_impl<MD,F,FC,BOOST_PP_DEC(N),MinArity>
{
using forward_adapter_impl<MD,F,FC,BOOST_PP_DEC(N),MinArity>::operator();
# endif
# // Zero based count for each arity would be I-(1<<N)+2, but we don't
# // need it, unless we need a nicer order.
# // Macros for the parameter's type modifiers.
# if I & 0x000001
# define PT0 T0 &
# else
# define PT0 T0 const &
# endif
# if I & 0x000002
# define PT1 T1 &
# else
# define PT1 T1 const &
# endif
# if I & 0x000004
# define PT2 T2 &
# else
# define PT2 T2 const &
# endif
# if I & 0x000008
# define PT3 T3 &
# else
# define PT3 T3 const &
# endif
# if I & 0x000010
# define PT4 T4 &
# else
# define PT4 T4 const &
# endif
# if I & 0x000020
# define PT5 T5 &
# else
# define PT5 T5 const &
# endif
# if I & 0x000040
# define PT6 T6 &
# else
# define PT6 T6 const &
# endif
# if I & 0x000080
# define PT7 T7 &
# else
# define PT7 T7 const &
# endif
# if I & 0x000100
# define PT8 T8 &
# else
# define PT8 T8 const &
# endif
# if I & 0x000200
# define PT9 T9 &
# else
# define PT9 T9 const &
# endif
# if I & 0x000400
# define PT10 T10 &
# else
# define PT10 T10 const &
# endif
# if I & 0x000800
# define PT11 T11 &
# else
# define PT11 T11 const &
# endif
# if I & 0x001000
# define PT12 T12 &
# else
# define PT12 T12 const &
# endif
# if I & 0x002000
# define PT13 T13 &
# else
# define PT13 T13 const &
# endif
# if I & 0x004000
# define PT14 T14 &
# else
# define PT14 T14 const &
# endif
# if I & 0x008000
# define PT15 T15 &
# else
# define PT15 T15 const &
# endif
# if BOOST_WORKAROUND(BOOST_MSVC,BOOST_TESTED_AT(1400))
template< BOOST_PP_ENUM_PARAMS(N,typename T) >
inline typename boost::result_of< FC(BOOST_PP_ENUM_PARAMS(N,PT))
>::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,PT,a)) const
{
return static_cast<MD const* const>(this)
->target_function()(BOOST_PP_ENUM_PARAMS(N,a));
}
template< BOOST_PP_ENUM_PARAMS(N,typename T) >
inline typename boost::result_of< F(BOOST_PP_ENUM_PARAMS(N,PT))
>::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,PT,a))
{
return static_cast<MD* const>(this)
->target_function()(BOOST_PP_ENUM_PARAMS(N,a));
}
# else
BOOST_TMP_MACRO(BOOST_PP_ENUM_PARAMS(N,typename T),
BOOST_PP_ENUM_PARAMS(N,PT), BOOST_PP_ENUM_BINARY_PARAMS(N,PT,a),
BOOST_PP_ENUM_PARAMS(N,a) )
// ...generates uglier code but is faster - it caches ENUM_*
# endif
# undef PT0
# undef PT1
# undef PT2
# undef PT3
# undef PT4
# undef PT5
# undef PT6
# undef PT7
# undef PT8
# undef PT9
# undef PT10
# undef PT11
# undef PT12
# undef PT13
# undef PT14
# undef PT15
# endif // I < count
# undef I
# endif // defined(BOOST_PP_IS_ITERATING)
#endif // include guard

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@@ -0,0 +1,61 @@
/*
Copyright 2021 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_FUNCTIONAL_IDENTITY_HPP
#define BOOST_FUNCTIONAL_IDENTITY_HPP
#include <boost/config.hpp>
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
#include <utility>
#endif
namespace boost {
struct identity {
typedef void is_transparent;
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
template<class T>
BOOST_CONSTEXPR T&& operator()(T&& value) const BOOST_NOEXCEPT {
return std::forward<T>(value);
}
#else
template<class T>
BOOST_CONSTEXPR const T& operator()(const T& value) const BOOST_NOEXCEPT {
return value;
}
template<class T>
BOOST_CONSTEXPR T& operator()(T& value) const BOOST_NOEXCEPT {
return value;
}
#endif
template<class>
struct result { };
template<class T>
struct result<identity(T&)> {
typedef T& type;
};
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
template<class T>
struct result<identity(T)> {
typedef T&& type;
};
template<class T>
struct result<identity(T&&)> {
typedef T&& type;
};
#endif
};
} // boost
#endif

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@@ -0,0 +1,288 @@
/*=============================================================================
Copyright (c) 2007 Tobias Schwinger
Use modification and distribution are 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).
==============================================================================*/
#ifndef BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_HPP_INCLUDED
# ifndef BOOST_PP_IS_ITERATING
# include <boost/config.hpp>
# include <boost/config/workaround.hpp>
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/iteration/iterate.hpp>
# include <boost/preprocessor/repetition/enum.hpp>
# include <boost/preprocessor/repetition/enum_params.hpp>
# include <boost/preprocessor/repetition/enum_binary_params.hpp>
# include <boost/preprocessor/facilities/intercept.hpp>
# include <boost/utility/result_of.hpp>
# include <boost/ref.hpp>
# ifndef BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_MAX_ARITY
# define BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_MAX_ARITY 10
# elif BOOST_FUNCTIONAL_FORDWARD_ADAPTER_MAX_ARITY < 3
# undef BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_MAX_ARITY
# define BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_MAX_ARITY 3
# endif
namespace boost
{
template< typename Function, int Arity_Or_MinArity = -1, int MaxArity = -1 >
class lightweight_forward_adapter;
//----- ---- --- -- - - - -
namespace detail
{
template< class MostDerived, typename Function, typename FunctionConst,
int Arity, int MinArity >
struct lightweight_forward_adapter_impl;
struct lightweight_forward_adapter_result
{
template< typename Sig > struct apply;
// Utility metafunction for argument transform
template< typename T > struct x { typedef T const& t; };
template< typename T > struct x< boost::reference_wrapper<T> >
{ typedef T& t; };
template< typename T > struct x<T&> : x<T> { };
template< typename T > struct x<T const&> : x<T> { };
template< typename T > struct x<T const> : x<T> { };
// Utility metafunction to choose target function qualification
template< typename T > struct c
{ typedef typename T::target_function_t t; };
template< typename T > struct c<T& >
{ typedef typename T::target_function_t t; };
template< typename T > struct c<T const >
{ typedef typename T::target_function_const_t t; };
template< typename T > struct c<T const&>
{ typedef typename T::target_function_const_t t; };
};
}
# define BOOST_TMP_MACRO(f,fn,fc) \
boost::detail::lightweight_forward_adapter_impl< \
lightweight_forward_adapter<f,Arity_Or_MinArity,MaxArity>, fn, fc, \
(MaxArity!=-1? MaxArity :Arity_Or_MinArity!=-1? Arity_Or_MinArity \
:BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_MAX_ARITY), \
(Arity_Or_MinArity!=-1? Arity_Or_MinArity : 0) >
template< typename Function, int Arity_Or_MinArity, int MaxArity >
class lightweight_forward_adapter
: public BOOST_TMP_MACRO(Function,Function,Function const)
, private Function
{
public:
lightweight_forward_adapter(Function const& f = Function())
: Function(f)
{ }
typedef Function target_function_t;
typedef Function const target_function_const_t;
Function & target_function() { return *this; }
Function const & target_function() const { return *this; }
template< typename Sig > struct result
: detail::lightweight_forward_adapter_result::template apply<Sig>
{ };
using BOOST_TMP_MACRO(Function,Function, Function const)::operator();
};
template< typename Function, int Arity_Or_MinArity, int MaxArity >
class lightweight_forward_adapter< Function const, Arity_Or_MinArity,
MaxArity >
: public BOOST_TMP_MACRO(Function const, Function const, Function const)
, private Function
{
public:
lightweight_forward_adapter(Function const& f = Function())
: Function(f)
{ }
typedef Function const target_function_t;
typedef Function const target_function_const_t;
Function const & target_function() const { return *this; }
template< typename Sig > struct result
: detail::lightweight_forward_adapter_result::template apply<Sig>
{ };
using BOOST_TMP_MACRO(Function const,Function const, Function const)
::operator();
};
template< typename Function, int Arity_Or_MinArity, int MaxArity >
class lightweight_forward_adapter< Function &, Arity_Or_MinArity, MaxArity >
: public BOOST_TMP_MACRO(Function&, Function, Function)
{
Function& ref_function;
public:
lightweight_forward_adapter(Function& f)
: ref_function(f)
{ }
typedef Function target_function_t;
typedef Function target_function_const_t;
Function & target_function() const { return this->ref_function; }
template< typename Sig > struct result
: detail::lightweight_forward_adapter_result::template apply<Sig>
{ };
using BOOST_TMP_MACRO(Function&, Function, Function)::operator();
};
#undef BOOST_TMP_MACRO
namespace detail
{
template< class Self >
struct lightweight_forward_adapter_result::apply< Self() >
: boost::result_of< BOOST_DEDUCED_TYPENAME c<Self>::t() >
{ };
// When operator() doesn't have any parameters, it can't
// be templatized and can't use SFINAE, so intead use class
// template parameter SFINAE to decide whether to instantiate it.
template <typename T, typename R = void>
struct lightweight_forward_adapter_sfinae
{
typedef T type;
};
// This is the fallback for when there isn't an operator()(),
// need to create an operator() that will never instantiate
// so that using parent::operator() will work okay.
template< class MD, class F, class FC, class Enable = void>
struct lightweight_forward_adapter_impl_zero
: lightweight_forward_adapter_result
{
template <typename T> struct never_instantiate {};
template <typename T>
typename never_instantiate<T>::type operator()(T) const {}
};
template< class MD, class F, class FC>
struct lightweight_forward_adapter_impl_zero<MD, F, FC,
typename lightweight_forward_adapter_sfinae<typename boost::result_of< FC() >::type>::type>
: lightweight_forward_adapter_result
{
inline typename boost::result_of< FC() >::type
operator()() const
{
return static_cast<MD const*>(this)->target_function()();
}
inline typename boost::result_of< F() >::type
operator()()
{
return static_cast<MD*>(this)->target_function()();
}
};
template< class MD, class F, class FC >
struct lightweight_forward_adapter_impl<MD,F,FC,0,0>
: lightweight_forward_adapter_impl_zero<MD,F,FC>
{
};
# define BOOST_PP_FILENAME_1 \
<boost/functional/lightweight_forward_adapter.hpp>
# define BOOST_PP_ITERATION_LIMITS \
(1,BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_MAX_ARITY)
# include BOOST_PP_ITERATE()
} // namespace detail
template<class F, int A0, int A1>
struct result_of<boost::lightweight_forward_adapter<F,A0,A1> const ()>
: boost::detail::lightweight_forward_adapter_result::template apply<
boost::lightweight_forward_adapter<F,A0,A1> const () >
{ };
template<class F, int A0, int A1>
struct result_of<boost::lightweight_forward_adapter<F,A0,A1>()>
: boost::detail::lightweight_forward_adapter_result::template apply<
boost::lightweight_forward_adapter<F,A0,A1>() >
{ };
template<class F, int A0, int A1>
struct result_of<boost::lightweight_forward_adapter<F,A0,A1> const& ()>
: boost::detail::lightweight_forward_adapter_result::template apply<
boost::lightweight_forward_adapter<F,A0,A1> const () >
{ };
template<class F, int A0, int A1>
struct result_of<boost::lightweight_forward_adapter<F,A0,A1>& ()>
: boost::detail::lightweight_forward_adapter_result::template apply<
boost::lightweight_forward_adapter<F,A0,A1>() >
{ };
}
# define BOOST_FUNCTIONAL_LIGHTWEIGHT_FORWARD_ADAPTER_HPP_INCLUDED
# else // defined(BOOST_PP_IS_ITERATING)
# define N BOOST_PP_ITERATION()
template< class Self, BOOST_PP_ENUM_PARAMS(N,typename T) >
struct lightweight_forward_adapter_result::apply<
Self (BOOST_PP_ENUM_PARAMS(N,T)) >
: boost::result_of<
BOOST_DEDUCED_TYPENAME c<Self>::t (BOOST_PP_ENUM_BINARY_PARAMS(N,
typename x<T,>::t BOOST_PP_INTERCEPT)) >
{ };
template< class MD, class F, class FC >
struct lightweight_forward_adapter_impl<MD,F,FC,BOOST_PP_DEC(N),N>
: lightweight_forward_adapter_result
{
template< BOOST_PP_ENUM_PARAMS(N,typename T) >
inline typename boost::result_of< F(BOOST_PP_ENUM_BINARY_PARAMS(N,
T,const& BOOST_PP_INTERCEPT)) >::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,& BOOST_PP_INTERCEPT));
};
template< class MD, class F, class FC, int MinArity >
struct lightweight_forward_adapter_impl<MD,F,FC,N,MinArity>
: lightweight_forward_adapter_impl<MD,F,FC,BOOST_PP_DEC(N),MinArity>
{
using lightweight_forward_adapter_impl<MD,F,FC,BOOST_PP_DEC(N),
MinArity>::operator();
# define M(z,i,d) \
static_cast<typename d::template x<T##i>::t>(a##i)
template< BOOST_PP_ENUM_PARAMS(N,typename T) >
inline typename lightweight_forward_adapter_result::template apply<
MD const (BOOST_PP_ENUM_BINARY_PARAMS(N,
T,const& BOOST_PP_INTERCEPT)) >::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,const& a)) const
{
typedef lightweight_forward_adapter_result _;
return static_cast<MD const*>(this)->target_function()(
BOOST_PP_ENUM(N,M,_));
}
template< BOOST_PP_ENUM_PARAMS(N,typename T) >
inline typename lightweight_forward_adapter_result::template apply<
MD (BOOST_PP_ENUM_BINARY_PARAMS(N,
T,const& BOOST_PP_INTERCEPT)) >::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,const& a))
{
typedef lightweight_forward_adapter_result _;
return static_cast<MD*>(this)->target_function()(
BOOST_PP_ENUM(N,M,_));
}
# undef M
};
# undef N
# endif // defined(BOOST_PP_IS_ITERATING)
#endif // include guard

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// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/functional/overloaded_function
#ifndef DOXYGEN // Doxygen documentation only.
#if !BOOST_PP_IS_ITERATING
# ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_HPP_
# define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_HPP_
# include <boost/functional/overloaded_function/detail/base.hpp>
# include <boost/functional/overloaded_function/detail/function_type.hpp>
# include <boost/functional/overloaded_function/config.hpp>
# include <boost/typeof/typeof.hpp>
# include <boost/preprocessor/iteration/iterate.hpp>
# include <boost/preprocessor/repetition/enum.hpp>
# include <boost/preprocessor/repetition/repeat.hpp>
# include <boost/preprocessor/control/expr_iif.hpp>
# include <boost/preprocessor/control/expr_if.hpp>
# include <boost/preprocessor/comparison/greater.hpp>
# include <boost/preprocessor/comparison/less.hpp>
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/arithmetic/add.hpp>
# include <boost/preprocessor/arithmetic/sub.hpp>
# include <boost/preprocessor/tuple/eat.hpp>
# include <boost/preprocessor/logical/and.hpp>
# include <boost/preprocessor/logical/not.hpp>
# include <boost/preprocessor/facilities/expand.hpp>
#define BOOST_FUNCTIONAL_f_type(z, n, unused) \
BOOST_PP_CAT(F, n)
#define BOOST_FUNCTIONAL_f_arg(z, n, unused) \
BOOST_PP_CAT(f, n)
#define BOOST_FUNCTIONAL_f_tparam(z, n, unused) \
typename BOOST_FUNCTIONAL_f_type(z, n, ~) \
#define BOOST_FUNCTIONAL_f_tparam_dflt(z, n, is_tspec) \
BOOST_FUNCTIONAL_f_tparam(z, n, ~) \
/* overload requires at least 2 functors so F0 and F1 not optional */ \
BOOST_PP_EXPR_IIF(BOOST_PP_AND(BOOST_PP_NOT(is_tspec), \
BOOST_PP_GREATER(n, 1)), \
= void \
)
#define BOOST_FUNCTIONAL_f_arg_decl(z, n, unused) \
BOOST_FUNCTIONAL_f_type(z, n, ~) /* no qualifier to deduce tparam */ \
BOOST_FUNCTIONAL_f_arg(z, n, ~)
#define BOOST_FUNCTIONAL_g_type(z, n, unused) \
BOOST_PP_CAT(G, n)
#define BOOST_FUNCTIONAL_g_arg(z, n, unused) \
BOOST_PP_CAT(g, n)
#define BOOST_FUNCTIONAL_g_tparam(z, n, unused) \
typename BOOST_FUNCTIONAL_g_type(z, n, ~)
#define BOOST_FUNCTIONAL_g_arg_decl(z, n, unused) \
BOOST_FUNCTIONAL_g_type(z, n, ~) /* no qualifier to deduce tparam */ \
BOOST_FUNCTIONAL_g_arg(z, n, ~)
#define BOOST_FUNCTIONAL_base(z, n, unused) \
::boost::overloaded_function_detail::base< \
BOOST_FUNCTIONAL_f_type(z, n, ~) \
>
#define BOOST_FUNCTIONAL_inherit(z, n, unused) \
public BOOST_FUNCTIONAL_base(z, n, ~)
#define BOOST_FUNCTIONAL_base_init(z, n, unused) \
BOOST_FUNCTIONAL_base(z, n, ~)(BOOST_FUNCTIONAL_g_arg(z, n, ~))
#define BOOST_FUNCTIONAL_using_operator_call(z, n, unused) \
using BOOST_FUNCTIONAL_base(z, n, ~)::operator();
#define BOOST_FUNCTIONAL_function_type(z, n, unused) \
typename ::boost::overloaded_function_detail::function_type< \
BOOST_FUNCTIONAL_f_type(z, n, ~) \
>::type
# define BOOST_PP_ITERATION_PARAMS_1 \
/* at least 2 func to overload so start from 2 to MAX */ \
/* (cannot iterate [0, MAX-2) because error on Sun) */ \
(3, (2, BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX, \
"boost/functional/overloaded_function.hpp"))
# include BOOST_PP_ITERATE() // Iterate over function arity.
#undef BOOST_FUNCTIONAL_f_type
#undef BOOST_FUNCTIONAL_f_arg
#undef BOOST_FUNCTIONAL_f_tparam
#undef BOOST_FUNCTIONAL_f_arg_decl
#undef BOOST_FUNCTIONAL_f_tparam_dflt
#undef BOOST_FUNCTIONAL_g_type
#undef BOOST_FUNCTIONAL_g_arg
#undef BOOST_FUNCTIONAL_g_tparam
#undef BOOST_FUNCTIONAL_g_arg_decl
#undef BOOST_FUNCTIONAL_base
#undef BOOST_FUNCTIONAL_inherit
#undef BOOST_FUNCTIONAL_base_init
#undef BOOST_FUNCTIONAL_using_operator_call
#undef BOOST_FUNCTIONAL_function_type
# endif // #include guard
#elif BOOST_PP_ITERATION_DEPTH() == 1
# define BOOST_FUNCTIONAL_overloads \
/* iterate as OVERLOADS, OVERLOADS-1, OVERLOADS-2, ... */ \
/* (add 2 because iteration started from 2 to MAX) */ \
BOOST_PP_ADD(2, BOOST_PP_SUB( \
BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX, \
BOOST_PP_FRAME_ITERATION(1)))
# define BOOST_FUNCTIONAL_is_tspec \
/* if template specialization */ \
BOOST_PP_LESS(BOOST_FUNCTIONAL_overloads, \
BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX)
// For type-of emulation: This must be included at this pp iteration level.
# include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
namespace boost {
template<
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_f_tparam_dflt,
BOOST_FUNCTIONAL_is_tspec)
>
class overloaded_function
// Template specialization.
BOOST_PP_EXPR_IIF(BOOST_PP_EXPAND(BOOST_FUNCTIONAL_is_tspec), <)
BOOST_PP_IIF(BOOST_FUNCTIONAL_is_tspec,
BOOST_PP_ENUM
,
BOOST_PP_TUPLE_EAT(3)
)(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_f_type, ~)
BOOST_PP_EXPR_IIF(BOOST_PP_EXPAND(BOOST_FUNCTIONAL_is_tspec), >)
// Bases (overloads >= 2 so always at least 2 bases).
: BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads,
BOOST_FUNCTIONAL_inherit, ~)
{
public:
template<
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_g_tparam, ~)
> /* implicit */ inline overloaded_function(
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads,
BOOST_FUNCTIONAL_g_arg_decl, ~))
// Overloads >= 2 so always at least 2 bases to initialize.
: BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads,
BOOST_FUNCTIONAL_base_init, ~)
{}
BOOST_PP_REPEAT(BOOST_FUNCTIONAL_overloads,
BOOST_FUNCTIONAL_using_operator_call, ~)
};
template<
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_f_tparam, ~)
>
overloaded_function<
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_function_type, ~)
> make_overloaded_function(
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_f_arg_decl, ~)
) {
return overloaded_function<
BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads,
BOOST_FUNCTIONAL_function_type, ~)
>(BOOST_PP_ENUM(BOOST_FUNCTIONAL_overloads, BOOST_FUNCTIONAL_f_arg, ~));
}
} // namespace
// For type-of emulation: Register overloaded function type (for _AUTO, etc).
BOOST_TYPEOF_REGISTER_TEMPLATE(boost::overloaded_function,
BOOST_FUNCTIONAL_overloads)
# undef BOOST_FUNCTIONAL_overloads
# undef BOOST_FUNCTIONAL_is_tspec
#endif // iteration
// DOCUMENTATION //
#else // DOXYGEN
/** @file
@brief Overload distinct function pointers, function references, and
monomorphic function objects into a single function object.
*/
namespace boost {
/**
@brief Function object to overload functions with distinct signatures.
This function object aggregates together calls to functions of all the
specified function types <c>F1</c>, <c>F2</c>, etc which must have distinct
function signatures from one another.
@Params
@Param{F<em>i</em>,
Each function type must be specified using the following syntax (which is
Boost.Function's preferred syntax):
@code
result_type (argument1_type\, argumgnet2_type\, ...)
@endcode
}
@EndParams
In some cases, the @RefFunc{make_overloaded_function} function template can be
useful to construct an overloaded function object without explicitly
specifying the function types.
At least two distinct function types must be specified (because there is
nothing to overload between one or zero functions).
The maximum number of functions to overload is given by the
@RefMacro{BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX}
configuration macro.
The maximum number of function parameters for each of the specified function
types is given by the
@RefMacro{BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX}
configuration macro.
@See @RefSect{tutorial, Tutorial} section, @RefFunc{make_overloaded_function},
@RefMacro{BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX},
@RefMacro{BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX},
Boost.Function.
*/
template<typename F1, typename F2, ...>
class overloaded_function {
public:
/**
@brief Construct the overloaded function object.
Any function pointer, function reference, and monomorphic function object
that can be converted to a <c>boost::function</c> function object can be
specified as parameter.
@Note Unfortunately, it is not possible to support polymorphic function
objects (as explained <a
href="http://lists.boost.org/Archives/boost/2012/03/191744.php">here</a>).
*/
overloaded_function(const boost::function<F1>&,
const boost::function<F2>&, ...);
/**
@brief Call operator matching the signature of the function type specified
as 1st template parameter.
This will in turn invoke the call operator of the 1st function passed to
the constructor.
*/
typename boost::function_traits<F1>::result_type operator()(
typename boost::function_traits<F1>::arg1_type,
typename boost::function_traits<F1>::arg2_type,
...) const;
/**
@brief Call operator matching the signature of the function type specified
as 2nd template parameter.
This will in turn invoke the call operator of the 2nd function passed to
the constructor.
@Note Similar call operators are present for all specified function types
<c>F1</c>, <c>F2</c>, etc (even if not exhaustively listed by this
documentation).
*/
typename boost::function_traits<F2>::result_type operator()(
typename boost::function_traits<F2>::arg1_type,
typename boost::function_traits<F2>::arg2_type,
...) const;
};
/**
@brief Make an overloaded function object without explicitly specifying the
function types.
This function template creates and returns an @RefClass{overloaded_function}
object that overloads all the specified functions <c>f1</c>, <c>f2</c>, etc.
The function types are internally determined from the template parameter types
so they do not need to be explicitly specified.
Therefore, this function template usually has a more concise syntax when
compared with @RefClass{overloaded_function}.
This is especially useful when the explicit type of the returned
@RefClass{overloaded_function} object does not need to be known (e.g., when
used with Boost.Typeof's <c>BOOST_AUTO</c>, C++11 <c>auto</c>, or when the
overloaded function object is handled using a function template parameter, see
the @RefSect{tutorial, Tutorial} section).
The maximum number of functions to overload is given by the
@RefMacro{BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX}
configuration macro.
@Note In this documentation, <c>__function_type__</c> is a placeholder for a
symbol that is specific to the implementation of this library.
@See @RefSect{tutorial, Tutorial} section, @RefClass{overloaded_function},
@RefMacro{BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX}.
*/
template<typename F1, typename F2, ...>
overloaded_function<
__function_type__<F1>, __function_type__<F2>, ...
> make_overloaded_function(F1 f1, F2 f2, ...);
} // namespace
#endif // DOXYGEN

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// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/functional/overloaded_function
#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_HPP_
#define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_HPP_
/** @file
@brief Change the compile-time configuration of this library.
*/
/**
@brief Specify the maximum number of arguments of the functions being
overloaded.
If this macro is left undefined by the user, it has a default value of 5
(increasing this number might increase compilation time).
When specified by the user, this macro must be a non-negative integer number.
@See @RefSect{getting_started, Getting Started},
@RefClass{boost::overloaded_function}.
*/
#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX
# define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX 5
#endif
/**
@brief Specify the maximum number of functions that can be overloaded.
If this macro is left undefined by the user, it has a default value of 5
(increasing this number might increase compilation time).
When defined by the user, this macro must be an integer number greater or
equal than 2 (because at least two distinct functions need to be specified in
order to define an overload).
@See @RefSect{getting_started, Getting Started},
@RefClass{boost::overloaded_function}.
*/
#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX
# define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX 5
#endif
#if BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_OVERLOAD_MAX < 2
# error "maximum overload macro cannot be less than 2"
#endif
#endif // #include guard

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// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/functional/overloaded_function
#if !BOOST_PP_IS_ITERATING
# ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_DETAIL_BASE_HPP_
# define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_DETAIL_BASE_HPP_
# include <boost/functional/overloaded_function/config.hpp>
# include <boost/function.hpp>
# include <boost/preprocessor/iteration/iterate.hpp>
# include <boost/preprocessor/repetition/enum.hpp>
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/comma_if.hpp>
#define BOOST_FUNCTIONAL_DETAIL_arg_type(z, n, unused) \
BOOST_PP_CAT(A, n)
#define BOOST_FUNCTIONAL_DETAIL_arg_name(z, n, unused) \
BOOST_PP_CAT(a, n)
#define BOOST_FUNCTIONAL_DETAIL_arg_tparam(z, n, unused) \
typename BOOST_FUNCTIONAL_DETAIL_arg_type(z, n, unused)
#define BOOST_FUNCTIONAL_DETAIL_arg(z, n, unused) \
BOOST_FUNCTIONAL_DETAIL_arg_type(z, n, unused) \
BOOST_FUNCTIONAL_DETAIL_arg_name(z, n, unused)
#define BOOST_FUNCTIONAL_DETAIL_f \
R (BOOST_PP_ENUM(BOOST_FUNCTIONAL_DETAIL_arity, \
BOOST_FUNCTIONAL_DETAIL_arg_type, ~))
// Do not use namespace ::detail because overloaded_function is already a class.
namespace boost { namespace overloaded_function_detail {
template<typename F>
class base {}; // Empty template cannot be used directly (only its spec).
# define BOOST_PP_ITERATION_PARAMS_1 \
(3, (0, BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_CONFIG_ARITY_MAX, \
"boost/functional/overloaded_function/detail/base.hpp"))
# include BOOST_PP_ITERATE() // Iterate over funciton arity.
} } // namespace
#undef BOOST_FUNCTIONAL_DETAIL_arg_type
#undef BOOST_FUNCTIONAL_DETAIL_arg_name
#undef BOOST_FUNCTIONAL_DETAIL_arg_tparam
#undef BOOST_FUNCTIONAL_DETAIL_arg
#undef BOOST_FUNCTIONAL_DETAIL_f
# endif // #include guard
#elif BOOST_PP_ITERATION_DEPTH() == 1
# define BOOST_FUNCTIONAL_DETAIL_arity BOOST_PP_FRAME_ITERATION(1)
template<
typename R
BOOST_PP_COMMA_IF(BOOST_FUNCTIONAL_DETAIL_arity)
BOOST_PP_ENUM(BOOST_FUNCTIONAL_DETAIL_arity,
BOOST_FUNCTIONAL_DETAIL_arg_tparam, ~)
>
class base< BOOST_FUNCTIONAL_DETAIL_f > {
public:
/* implicit */ inline base(
// This requires specified type to be implicitly convertible to
// a boost::function<> functor.
boost::function< BOOST_FUNCTIONAL_DETAIL_f > const& f): f_(f)
{}
inline R operator()(BOOST_PP_ENUM(BOOST_FUNCTIONAL_DETAIL_arity,
BOOST_FUNCTIONAL_DETAIL_arg, ~)) const {
return f_(BOOST_PP_ENUM(BOOST_FUNCTIONAL_DETAIL_arity,
BOOST_FUNCTIONAL_DETAIL_arg_name, ~));
}
private:
boost::function< BOOST_FUNCTIONAL_DETAIL_f > const f_;
};
# undef BOOST_FUNCTIONAL_DETAIL_arity
#endif // iteration

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// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/functional/overloaded_function
#ifndef BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_DETAIL_FUNCTION_TYPE_HPP_
#define BOOST_FUNCTIONAL_OVERLOADED_FUNCTION_DETAIL_FUNCTION_TYPE_HPP_
#include <boost/function_types/is_function.hpp>
#include <boost/function_types/is_function_pointer.hpp>
#include <boost/function_types/is_function_reference.hpp>
#include <boost/function_types/function_type.hpp>
#include <boost/function_types/parameter_types.hpp>
#include <boost/function_types/result_type.hpp>
#include <boost/type_traits/remove_pointer.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/function.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/identity.hpp>
#include <boost/mpl/pop_front.hpp>
#include <boost/mpl/push_front.hpp>
#include <boost/typeof/typeof.hpp>
// Do not use namespace ::detail because overloaded_function is already a class.
namespace boost { namespace overloaded_function_detail {
// Requires: F is a monomorphic functor (i.e., has non-template `operator()`).
// Returns: F's function type `result_type (arg1_type, arg2_type, ...)`.
// It does not assume F typedef result_type, arg1_type, ... but needs typeof.
template<typename F>
class functor_type {
// NOTE: clang does not accept extra parenthesis `&(...)`.
typedef BOOST_TYPEOF_TPL(&F::operator()) call_ptr;
public:
typedef
typename boost::function_types::function_type<
typename boost::mpl::push_front<
typename boost::mpl::pop_front< // Remove functor type (1st).
typename boost::function_types::parameter_types<
call_ptr>::type
>::type
, typename boost::function_types::result_type<call_ptr>::type
>::type
>::type
type;
};
// NOTE: When using boost::function in Boost.Typeof emulation mode, the user
// has to register boost::functionN instead of boost::function in oder to
// do TYPEOF(F::operator()). That is confusing, so boost::function is handled
// separately so it does not require any Boost.Typeof registration at all.
template<typename F>
struct functor_type< boost::function<F> > {
typedef F type;
};
// Requires: F is a function type, pointer, reference, or monomorphic functor.
// Returns: F's function type `result_type (arg1_type, arg2_type, ...)`.
template<typename F>
struct function_type {
typedef
typename boost::mpl::if_<boost::function_types::is_function<F>,
boost::mpl::identity<F>
,
typename boost::mpl::if_<boost::function_types::
is_function_pointer<F>,
boost::remove_pointer<F>
,
typename boost::mpl::if_<boost::function_types::
is_function_reference<F>,
boost::remove_reference<F>
, // Else, requires that F is a functor.
functor_type<F>
>::type
>::type
>::type
::type type;
};
} } // namespace
#endif // #include guard

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/*
Copyright 2007 Tobias Schwinger
Copyright 2019 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_FUNCTIONAL_VALUE_FACTORY_HPP
#define BOOST_FUNCTIONAL_VALUE_FACTORY_HPP
#include <boost/config.hpp>
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#include <utility>
#endif
namespace boost {
template<class T>
class value_factory;
template<class T>
class value_factory {
public:
typedef T result_type;
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template<class... Args>
result_type operator()(Args&&... args) const {
return result_type(std::forward<Args>(args)...);
}
#else
result_type operator()() const {
return result_type();
}
template<class A0>
result_type operator()(A0& a0) const {
return result_type(a0);
}
template<class A0, class A1>
result_type operator()(A0& a0, A1& a1) const {
return result_type(a0, a1);
}
template<class A0, class A1, class A2>
result_type operator()(A0& a0, A1& a1, A2& a2) const {
return result_type(a0, a1, a2);
}
template<class A0, class A1, class A2, class A3>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3) const {
return result_type(a0, a1, a2, a3);
}
template<class A0, class A1, class A2, class A3, class A4>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4) const {
return result_type(a0, a1, a2, a3, a4);
}
template<class A0, class A1, class A2, class A3, class A4, class A5>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4,
A5& a5) const {
return result_type(a0, a1, a2, a3, a4, a5);
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6) const {
return result_type(a0, a1, a2, a3, a4, a5, a6);
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7) const {
return result_type(a0, a1, a2, a3, a4, a5, a6, a7);
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7, class A8>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7, A8& a8) const {
return result_type(a0, a1, a2, a3, a4, a5, a6, a7, a8);
}
template<class A0, class A1, class A2, class A3, class A4, class A5,
class A6, class A7, class A8, class A9>
result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
A6& a6, A7& a7, A8& a8, A9& a9) const {
return result_type(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
}
#endif
};
template<class T>
class value_factory<T&> { };
} /* boost */
#endif

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@@ -0,0 +1,23 @@
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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@@ -0,0 +1,4 @@
The package boost is compatible with built-in CMake targets:
find_package(Boost REQUIRED [COMPONENTS <libs>...])
target_link_libraries(main PRIVATE Boost::boost Boost::<lib1> Boost::<lib2> ...)

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