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49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
1 year ago
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/**
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* @file circular.hpp
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* @brief Small utility for filling a buffer in a circular manner.
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*
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* Copyright (C) 2021 Clyne Sullivan
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*
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* Distributed under the GNU GPL v3 or later. You should have received a copy of
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* the GNU General Public License along with this program.
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* If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef CIRCULAR_HPP
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#define CIRCULAR_HPP
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#include <iterator>
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template<template<typename> class Container, typename T>
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class CircularBuffer
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{
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public:
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CircularBuffer(Container<T>& container) :
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m_begin(std::begin(container)),
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m_end(std::end(container)),
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m_current(m_begin) {}
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void put(const T& value) noexcept {
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*m_current = value;
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if (++m_current == m_end)
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m_current = m_begin;
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}
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std::size_t size() const noexcept {
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return std::distance(m_begin, m_end);
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}
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void reset(const T& fill) noexcept {
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std::fill(m_begin, m_end, fill);
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m_current = m_begin;
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}
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private:
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Container<T>::iterator m_begin;
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Container<T>::iterator m_end;
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Container<T>::iterator m_current;
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};
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#endif // CIRCULAR_HPP
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