Sprout/sprout/functional/post_inc.hpp
2014-01-08 16:48:12 +09:00

36 lines
1 KiB
C++

/*=============================================================================
Copyright (c) 2011-2014 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_FUNCTIONAL_POST_INC_HPP
#define SPROUT_FUNCTIONAL_POST_INC_HPP
#include <utility>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout {
//
// post_inc
//
template<typename T = void>
struct post_inc;
template<>
struct post_inc<void> {
public:
typedef void is_transparent;
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
#endif // #ifndef SPROUT_FUNCTIONAL_POST_INC_HPP