Sprout/sprout/adl/not_found.hpp
2012-10-04 23:25:28 +09:00

42 lines
950 B
C++

#ifndef SPROUT_ADL_NOT_FOUND_HPP
#define SPROUT_ADL_NOT_FOUND_HPP
#include <type_traits>
#include <sprout/config.hpp>
namespace sprout {
//
// not_found_via_adl
//
struct not_found_via_adl {};
//
// is_not_found_via_adl
//
template<typename T>
struct is_not_found_via_adl
: public std::is_same<T, sprout::not_found_via_adl>
{};
template<typename T>
struct is_not_found_via_adl<T const>
: public sprout::is_not_found_via_adl<T>
{};
template<typename T>
struct is_not_found_via_adl<T volatile>
: public sprout::is_not_found_via_adl<T>
{};
template<typename T>
struct is_not_found_via_adl<T const volatile>
: public sprout::is_not_found_via_adl<T>
{};
//
// is_found_via_adl
//
template<typename T>
struct is_found_via_adl
: public std::integral_constant<bool, !sprout::is_not_found_via_adl<T>::value>
{};
} // namespace sprout
#endif // #ifndef SPROUT_ADL_NOT_FOUND_HPP