mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-25 21:35:41 +00:00
35 lines
1.2 KiB
C++
35 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_FUNCTIONAL_POLYMORPHIC_SHIFT_LEFT_HPP
|
|
#define SPROUT_FUNCTIONAL_POLYMORPHIC_SHIFT_LEFT_HPP
|
|
|
|
#include <utility>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/utility/forward.hpp>
|
|
|
|
namespace sprout {
|
|
//
|
|
// shift_left_t
|
|
// shift_left_
|
|
//
|
|
struct shift_left_t {
|
|
public:
|
|
template<typename T, typename U>
|
|
SPROUT_CONSTEXPR decltype(std::declval<T>() << std::declval<U>())
|
|
operator()(T&& x, U&& y)
|
|
const SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(std::declval<T>() << std::declval<U>()))
|
|
{
|
|
return sprout::forward<T>(x) << sprout::forward<U>(y);
|
|
}
|
|
};
|
|
namespace {
|
|
SPROUT_STATIC_CONSTEXPR sprout::shift_left_t shift_left_ = {};
|
|
} // anonymous-namespace
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_SHIFT_LEFT_HPP
|