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30 lines
975 B
C++
30 lines
975 B
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_AS_CONST_HPP
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#define SPROUT_UTILITY_AS_CONST_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/utility/forward.hpp>
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namespace sprout {
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//
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// as_const
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//
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template<typename T>
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inline SPROUT_CONSTEXPR typename std::conditional<
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std::is_lvalue_reference<T>::value,
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typename std::remove_reference<T>::type const&,
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typename std::remove_reference<T>::type const&&
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>::type
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as_const(T&& t) {
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return SPROUT_FORWARD(T, t);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_UTILITY_AS_CONST_HPP
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