Sprout/sprout/functional/polymorphic/post_inc.hpp
2012-06-21 13:34:26 +09:00

28 lines
696 B
C++

#ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_POST_INC_HPP
#define SPROUT_FUNCTIONAL_POLYMORPHIC_POST_INC_HPP
#include <utility>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout {
//
// post_inc_t
// post_inc_
//
struct post_inc_t {
public:
template<typename T>
SPROUT_CONSTEXPR decltype(std::declval<T>()++)
operator()(T&& x)
const SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(std::declval<T>()++))
{
return sprout::forward<T>(x)++;
}
};
namespace {
SPROUT_STATIC_CONSTEXPR sprout::post_inc_t post_inc_{};
} // anonymous-namespace
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_POST_INC_HPP