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move support: optional class template

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bolero-MURAKAMI 2013-05-18 21:37:54 +09:00
parent d732a73431
commit e6420f2bbd
3 changed files with 130 additions and 71 deletions
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14
sprout/optional/make_optional.hpp
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@ -1,22 +1,24 @@
#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<T>
make_optional(T const& v) {
return optional<T>(v);
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<T>
make_optional(bool cond, T const& v) {
return optional<T>(cond, v);
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