Sprout/sprout/uuid/uuid_tuple.hpp

#ifndef SPROUT_UUID_UUID_TUPLE_HPP
#define SPROUT_UUID_UUID_TUPLE_HPP

#include <cstddef>
#include <tuple>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/uuid/uuid.hpp>

namespace sprout {
	namespace tuples {
		//
		// get
		//
		template<std::size_t I>
		inline SPROUT_CONSTEXPR sprout::uuids::uuid::value_type&
		get(sprout::uuids::uuid& t) SPROUT_NOEXCEPT {
			static_assert(I < 16, "get: index out of range");
			return t[I];
		}
		template<std::size_t I>
		inline SPROUT_CONSTEXPR sprout::uuids::uuid::value_type const&
		get(sprout::uuids::uuid const& t) SPROUT_NOEXCEPT {
			static_assert(I < 16, "get: index out of range");
			return t[I];
		}
		template<std::size_t I>
		inline SPROUT_CONSTEXPR sprout::uuids::uuid::value_type&&
		get(sprout::uuids::uuid&& t) SPROUT_NOEXCEPT {
			return sprout::move(sprout::tuples::get<I>(t));
		}
	}	// namespace tuples

	using sprout::tuples::get;
}	// namespace sprout

namespace std {
	//
	// tuple_size
	//
	template<>
	struct tuple_size<sprout::uuids::uuid> {
	public:
		typedef std::integral_constant<std::size_t, 16> type;
		SPROUT_STATIC_CONSTEXPR std::size_t value = type::value;
	};

	//
	// tuple_element
	//
	template<std::size_t I>
	struct tuple_element<I, sprout::uuids::uuid> {
	public:
		static_assert(I < 16, "tuple_element<>: index out of range");
		typedef sprout::uuids::uuid::value_type type;
	};
}	// namespace std

#endif	// #ifndef SPROUT_UUID_UUID_TUPLE_HPP