Sprout/sprout/darkroom/access/traits.hpp

/*=============================================================================
  Copyright (c) 2011-2017 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_DARKROOM_ACCESS_TRAITS_HPP
#define SPROUT_DARKROOM_ACCESS_TRAITS_HPP

#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/type_traits/integral_constant.hpp>

namespace sprout {
	namespace darkroom {
		namespace access {
			//
			// is_tuple
			//
			template<typename T>
			struct is_tuple
				: public sprout::false_type
			{};
			template<typename T>
			struct is_tuple<T const>
				: public sprout::darkroom::access::is_tuple<T>
			{};
			template<typename T>
			struct is_tuple<T volatile>
				: public sprout::darkroom::access::is_tuple<T>
			{};
			template<typename T>
			struct is_tuple<T const volatile>
				: public sprout::darkroom::access::is_tuple<T>
			{};
			template<typename... Types>
			struct is_tuple<sprout::tuples::tuple<Types...> >
				: public sprout::true_type
			{};
		}	// namespace access
	}	// namespace darkroom
}	// namespace sprout

#endif	// #ifndef SPROUT_DARKROOM_ACCESS_TRAITS_HPP