diff options
Diffstat (limited to '3rdparty/asio/include/asio/detail/non_const_lvalue.hpp')
-rw-r--r-- | 3rdparty/asio/include/asio/detail/non_const_lvalue.hpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/3rdparty/asio/include/asio/detail/non_const_lvalue.hpp b/3rdparty/asio/include/asio/detail/non_const_lvalue.hpp new file mode 100644 index 00000000000..49603656850 --- /dev/null +++ b/3rdparty/asio/include/asio/detail/non_const_lvalue.hpp @@ -0,0 +1,54 @@ +// +// detail/non_const_lvalue.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// +// Distributed under 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 ASIO_DETAIL_NON_CONST_LVALUE_HPP +#define ASIO_DETAIL_NON_CONST_LVALUE_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include "asio/detail/config.hpp" +#include "asio/detail/type_traits.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace detail { + +template <typename T> +struct non_const_lvalue +{ +#if defined(ASIO_HAS_MOVE) + explicit non_const_lvalue(T& t) + : value(static_cast<typename conditional< + is_same<T, typename decay<T>::type>::value, + typename decay<T>::type&, T&&>::type>(t)) + { + } + + typename conditional<is_same<T, typename decay<T>::type>::value, + typename decay<T>::type&, typename decay<T>::type>::type value; +#else // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + explicit non_const_lvalue(const typename decay<T>::type& t) + : value(t) + { + } + + typename decay<T>::type value; +#endif // defined(ASIO_HAS_MOVE) +}; + +} // namespace detail +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // ASIO_DETAIL_NON_CONST_LVALUE_HPP |