Sprout/sprout/tpp/algorithm/none_of.hpp
2012-11-02 22:00:10 +09:00

50 lines
1.1 KiB
C++

#ifndef SPROUT_TPP_ALGORITHM_NONE_OF_HPP
#define SPROUT_TPP_ALGORITHM_NONE_OF_HPP
#include <type_traits>
#include <sprout/config.hpp>
namespace sprout {
namespace tpp {
namespace detail {
template<bool... Values>
struct none_of_impl;
template<>
struct none_of_impl<>
: public std::true_type
{};
template<>
struct none_of_impl<true>
: public std::false_type
{};
template<>
struct none_of_impl<false>
: public std::true_type
{};
template<bool... Tail>
struct none_of_impl<true, Tail...>
: public std::false_type
{};
template<bool... Tail>
struct none_of_impl<false, Tail...>
: public std::integral_constant<bool, sprout::tpp::detail::none_of_impl<Tail...>::value>
{};
} // namespace detail
//
// none_of_c
//
template<bool... Values>
struct none_of_c
: public sprout::tpp::detail::none_of_impl<Values...>
{};
//
// none_of
//
template<typename... Types>
struct none_of
: public sprout::tpp::none_of_c<Types::value...>
{};
} // namespace tpp
} // namespace sprout
#endif // #ifndef SPROUT_TPP_ALGORITHM_NONE_OF_HPP