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74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/// \file
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// Range v3 library
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//
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// Copyright Eric Niebler 2013-present
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//
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// Use, modification and distribution is subject to the
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// Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Project home: https://github.com/ericniebler/range-v3
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//
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#ifndef RANGES_V3_UTILITY_GET_HPP
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#define RANGES_V3_UTILITY_GET_HPP
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#include <meta/meta.hpp>
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#include <concepts/concepts.hpp>
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#include <range/v3/detail/adl_get.hpp>
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#include <range/v3/detail/prologue.hpp>
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namespace ranges
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{
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/// \addtogroup group-utility Utility
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/// @{
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///
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/// \cond
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namespace _get_
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{
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/// \endcond
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// clang-format off
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template<std::size_t I, typename TupleLike>
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constexpr auto CPP_auto_fun(get)(TupleLike &&t)
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(
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return detail::adl_get<I>(static_cast<TupleLike &&>(t))
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)
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template<typename T, typename TupleLike>
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constexpr auto CPP_auto_fun(get)(TupleLike &&t)
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(
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return detail::adl_get<T>(static_cast<TupleLike &&>(t))
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)
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// clang-format on
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template<typename T>
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T & get(meta::id_t<T> & value) noexcept
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{
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return value;
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}
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template<typename T>
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T const & get(meta::id_t<T> const & value) noexcept
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{
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return value;
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}
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template<typename T>
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T && get(meta::id_t<T> && value) noexcept
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{
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return static_cast<T &&>(value);
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}
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/// \cond
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} // namespace _get_
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using namespace _get_;
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/// \endcond
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/// @}
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} // namespace ranges
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#include <range/v3/detail/epilogue.hpp>
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#endif
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