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Sprout/sprout/utility/pair/second.hpp
2014-01-08 16:48:12 +09:00

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