44 lines
1.0 KiB
C++
44 lines
1.0 KiB
C++
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//
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// detail/non_const_lvalue.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2024 Christopher M. Kohlhoff (chris at kohlhoff dot 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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#ifndef ASIO_DETAIL_NON_CONST_LVALUE_HPP
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#define ASIO_DETAIL_NON_CONST_LVALUE_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/config.hpp"
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#include "asio/detail/type_traits.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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template <typename T>
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struct non_const_lvalue
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{
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explicit non_const_lvalue(T& t)
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: value(static_cast<conditional_t<
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is_same<T, decay_t<T>>::value, decay_t<T>&, T&&>>(t))
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{
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}
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conditional_t<is_same<T, decay_t<T>>::value, decay_t<T>&, decay_t<T>> value;
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};
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_NON_CONST_LVALUE_HPP
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