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30 lines
1 KiB
C++
30 lines
1 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2014 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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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 SPROUT_UTILITY_PAIR_SECOND_HPP
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#define SPROUT_UTILITY_PAIR_SECOND_HPP
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#include <sprout/config.hpp>
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#include <sprout/tuple/tuple/get.hpp>
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#include <sprout/utility/forward.hpp>
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#include <sprout/utility/pair/tuple.hpp>
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namespace sprout {
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//
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// second
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//
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template<typename T>
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inline SPROUT_CONSTEXPR auto
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second(T&& t)
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SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::tuples::get<1>(SPROUT_FORWARD(T, t))))
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-> decltype(sprout::tuples::get<1>(SPROUT_FORWARD(T, t)))
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{
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return sprout::tuples::get<1>(SPROUT_FORWARD(T, t));
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_UTILITY_PAIR_SECOND_HPP
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