Sprout/sprout/functional/polymorphic/address_of.hpp
2012-12-17 23:10:23 +09:00

28 lines
712 B
C++

#ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_ADDRESS_OF_HPP
#define SPROUT_FUNCTIONAL_POLYMORPHIC_ADDRESS_OF_HPP
#include <utility>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout {
//
// address_of_t
// address_of_
//
struct address_of_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::address_of_t address_of_ = {};
} // anonymous-namespace
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_ADDRESS_OF_HPP