//
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// Copyright (c) 2019 Damian Jarek(damian.jarek93@gmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/beast
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//
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#ifndef BOOST_BEAST_CORE_DETAIL_CHAR_BUFFER_HPP
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#define BOOST_BEAST_CORE_DETAIL_CHAR_BUFFER_HPP
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#include <boost/config.hpp>
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#include <cstddef>
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#include <cstring>
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#include <cstdint>
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namespace boost {
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namespace beast {
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namespace detail {
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template <std::size_t N>
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class char_buffer
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{
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public:
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bool try_push_back(char c)
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{
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if (size_ == N)
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return false;
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buf_[size_++] = c;
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return true;
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}
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bool try_append(char const* first, char const* last)
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{
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std::size_t const n = last - first;
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if (n > N - size_)
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return false;
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std::memmove(&buf_[size_], first, n);
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size_ += n;
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return true;
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}
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void clear() noexcept
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{
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size_ = 0;
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}
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char* data() noexcept
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{
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return buf_;
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}
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char const* data() const noexcept
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{
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return buf_;
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}
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std::size_t size() const noexcept
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{
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return size_;
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}
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bool empty() const noexcept
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{
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return size_ == 0;
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}
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private:
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std::size_t size_= 0;
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char buf_[N];
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};
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} // detail
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} // beast
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} // boost
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#endif
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