52 lines
819 B
C++
52 lines
819 B
C++
#pragma once
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#include <array>
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#include <cstddef>
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namespace Pinetime {
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namespace Utility {
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template <class T, size_t S>
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struct CircularBuffer {
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constexpr size_t Size() const {
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return S;
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}
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size_t Idx() const {
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return idx;
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}
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T& operator[](size_t n) {
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return data[(idx + n) % S];
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}
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const T& operator[](size_t n) const {
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return data[(idx + n) % S];
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}
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void operator++() {
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idx++;
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idx %= S;
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}
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void operator++(int) {
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operator++();
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}
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void operator--() {
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if (idx > 0) {
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idx--;
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} else {
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idx = S - 1;
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}
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}
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void operator--(int) {
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operator--();
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}
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std::array<T, S> data;
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size_t idx = 0;
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};
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}
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}
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