#ifndef SPROUT_INDEX_TUPLE_INDEX_TUPLE_HPP
#define SPROUT_INDEX_TUPLE_INDEX_TUPLE_HPP

#include <cstddef>
#include <sprout/config.hpp>

namespace sprout {
	//
	// index_t
	//
	typedef std::ptrdiff_t index_t;

	//
	// index_tuple
	//
	template<sprout::index_t... Indexes>
	struct index_tuple {
	public:
		typedef index_tuple type;
		typedef sprout::index_t value_type;
	public:
		SPROUT_STATIC_CONSTEXPR std::size_t size = sizeof...(Indexes);
	};
	template<sprout::index_t... Indexes>
	SPROUT_CONSTEXPR_OR_CONST std::size_t sprout::index_tuple<Indexes...>::size;
}	// namespace sprout

#endif	// #ifndef SPROUT_INDEX_TUPLE_INDEX_TUPLE_HPP