1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout synced 2024-11-12 21:09:01 +00:00
Sprout/sprout/utility/as_non_const.hpp

35 lines
1.2 KiB
C++
Raw Normal View History

2016-04-14 16:47:14 +00:00
/*=============================================================================
Copyright (c) 2011-2017 Bolero MURAKAMI
2016-04-14 16:47:14 +00:00
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_AS_NON_CONST_HPP
#define SPROUT_UTILITY_AS_NON_CONST_HPP
#include <type_traits>
#include <sprout/config.hpp>
namespace sprout {
//
// as_non_const
//
template<typename T>
inline SPROUT_CONSTEXPR typename std::conditional<
std::is_lvalue_reference<T>::value,
typename std::remove_const<typename std::remove_reference<T>::type>::type&,
typename std::remove_const<typename std::remove_reference<T>::type>::type&&
>::type
as_non_const(T&& t) {
typedef typename std::conditional<
std::is_lvalue_reference<T>::value,
typename std::remove_const<typename std::remove_reference<T>::type>::type&,
typename std::remove_const<typename std::remove_reference<T>::type>::type&&
>::type type;
return const_cast<type>(t);
}
} // namespace sprout
#endif // #ifndef SPROUT_UTILITY_AS_NON_CONST_HPP