Sprout/sprout/optional/make_optional.hpp
bolero-MURAKAMI cb1077d247 add copyright
2013-08-08 18:54:33 +09:00

32 lines
1.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2013 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_OPTIONAL_MAKE_OPTIONAL_HPP
#define SPROUT_OPTIONAL_MAKE_OPTIONAL_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/optional/optional.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout {
//
// make_optional
//
template<typename T>
inline SPROUT_CONSTEXPR sprout::optional<typename std::decay<T>::type>
make_optional(T&& v) {
return sprout::optional<typename std::decay<T>::type>(sprout::forward<T>(v));
}
template<typename T>
inline SPROUT_CONSTEXPR sprout::optional<typename std::decay<T>::type>
make_optional(bool cond, T&& v) {
return sprout::optional<typename std::decay<T>::type>(cond, sprout::forward<T>(v));
}
} // namespace sprout
#endif // #ifndef SPROUT_OPTIONAL_MAKE_OPTIONAL_HPP