1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout synced 2024-11-12 21:09:01 +00:00
Sprout/sprout/index_tuple/tuple.hpp
2013-04-06 13:06:51 +09:00

103 lines
3.2 KiB
C++

#ifndef SPROUT_INDEX_TUPLE_TUPLE_HPP
#define SPROUT_INDEX_TUPLE_TUPLE_HPP
#include <cstddef>
#include <tuple>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/index_tuple/integer_seq.hpp>
#include <sprout/index_tuple/index_tuple.hpp>
#include <sprout/utility/pack.hpp>
namespace std {
#if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wmismatched-tags"
#endif
//
// tuple_size
//
template<typename T, T... Is>
struct tuple_size<sprout::integer_seq<T, Is...> >
: public std::integral_constant<std::size_t, sizeof...(Is)>
{};
//
// tuple_element
//
template<std::size_t I, typename T, T... Is>
struct tuple_element<I, sprout::integer_seq<T, Is...> > {
static_assert(I < sizeof...(Is), "tuple_element<>: index out of range");
public:
typedef typename sprout::tppack_c_at<I, T, Is...>::type type;
};
//
// tuple_size
//
template<sprout::index_t... Indexes>
struct tuple_size<sprout::index_tuple<Indexes...> >
: public std::tuple_size<sprout::integer_seq<sprout::index_t, Indexes...> >
{};
//
// tuple_element
//
template<std::size_t I, sprout::index_t... Indexes>
struct tuple_element<I, sprout::index_tuple<Indexes...> >
: public std::tuple_element<I, sprout::integer_seq<sprout::index_t, Indexes...> >
{};
//
// tuple_size
//
template<sprout::uindex_t... Indexes>
struct tuple_size<sprout::uindex_tuple<Indexes...> >
: public std::tuple_size<sprout::integer_seq<sprout::uindex_t, Indexes...> >
{};
//
// tuple_element
//
template<std::size_t I, sprout::uindex_t... Indexes>
struct tuple_element<I, sprout::uindex_tuple<Indexes...> >
: public std::tuple_element<I, sprout::integer_seq<sprout::uindex_t, Indexes...> >
{};
#if defined(__clang__)
# pragma clang diagnostic pop
#endif
} // namespace std
namespace sprout {
//
// tuple_get
//
template<std::size_t I, typename T, T... Is>
inline SPROUT_CONSTEXPR typename std::tuple_element<I, sprout::integer_seq<T, Is...> >::type
tuple_get(sprout::integer_seq<T, Is...>) SPROUT_NOEXCEPT {
static_assert(I < sizeof...(Is), "tuple_get: index out of range");
typedef typename std::tuple_element<I, sprout::integer_seq<T, Is...> >::type type;
return type();
}
//
// tuple_get
//
template<std::size_t I, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR typename std::tuple_element<I, sprout::index_tuple<Indexes...> >::type
tuple_get(sprout::index_tuple<Indexes...>) SPROUT_NOEXCEPT {
static_assert(I < sizeof...(Indexes), "tuple_get: index out of range");
typedef typename std::tuple_element<I, sprout::index_tuple<Indexes...> >::type type;
return type();
}
//
// tuple_get
//
template<std::size_t I, sprout::uindex_t... Indexes>
inline SPROUT_CONSTEXPR typename std::tuple_element<I, sprout::uindex_tuple<Indexes...> >::type
tuple_get(sprout::uindex_tuple<Indexes...>) SPROUT_NOEXCEPT {
static_assert(I < sizeof...(Indexes), "tuple_get: index out of range");
typedef typename std::tuple_element<I, sprout::uindex_tuple<Indexes...> >::type type;
return type();
}
} // namespace sprout
#endif // #ifndef SPROUT_INDEX_TUPLE_TUPLE_HPP