mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2019 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_DEREFERENCE_HPP
|
|
#define SPROUT_FUNCTIONAL_DEREFERENCE_HPP
|
|
|
|
#include <utility>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/utility/forward.hpp>
|
|
#include <sprout/functional/transparent.hpp>
|
|
|
|
namespace sprout {
|
|
//
|
|
// dereference
|
|
//
|
|
template<typename T = void>
|
|
struct dereference;
|
|
template<>
|
|
struct dereference<void>
|
|
: public sprout::transparent<>
|
|
{
|
|
public:
|
|
template<typename T>
|
|
SPROUT_CONSTEXPR decltype(*std::declval<T>())
|
|
operator()(T&& x)
|
|
const SPROUT_NOEXCEPT_IF_EXPR(*std::declval<T>())
|
|
{
|
|
return *SPROUT_FORWARD(T, x);
|
|
}
|
|
};
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_FUNCTIONAL_DEREFERENCE_HPP
|