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https://github.com/bolero-MURAKAMI/Sprout.git
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49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2017 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 TESTSPR_UTILITY_HPP
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#define TESTSPR_UTILITY_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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#include <sprout/utility/as_non_const.hpp>
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namespace testspr {
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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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//
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// as_non_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_const<typename std::remove_reference<T>::type>::type&,
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typename std::remove_const<typename std::remove_reference<T>::type>::type&&
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>::type
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as_non_const(T&& t) {
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typedef typename std::conditional<
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std::is_lvalue_reference<T>::value,
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typename std::remove_const<typename std::remove_reference<T>::type>::type&,
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typename std::remove_const<typename std::remove_reference<T>::type>::type&&
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>::type type;
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return const_cast<type>(t);
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}
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} // namespace testspr
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#endif // #ifndef TESTSPR_UTILITY_HPP
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