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Sprout/sprout/uuid/uuid_tuple.hpp

60 lines
1.5 KiB
C++

#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