mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
#ifndef SPROUT_ARRAY_TUPLE_HPP
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#define SPROUT_ARRAY_TUPLE_HPP
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#include <cstddef>
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#include <tuple>
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#include <type_traits>
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#include <sprout/array/array.hpp>
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#include <sprout/utility/move.hpp>
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#include <sprout/tuple/tuple/get.hpp>
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namespace sprout {
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//
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// tuple_get
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//
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template<std::size_t I, typename T, std::size_t N>
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inline SPROUT_CONSTEXPR T&
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tuple_get(sprout::array<T, N>& t) SPROUT_NOEXCEPT {
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static_assert(I < N, "tuple_get: index out of range");
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return t[I];
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}
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template<std::size_t I, typename T, std::size_t N>
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inline SPROUT_CONSTEXPR T const&
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tuple_get(sprout::array<T, N> const& t) SPROUT_NOEXCEPT {
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static_assert(I < N, "tuple_get: index out of range");
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return t[I];
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}
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template<std::size_t I, typename T, std::size_t N>
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inline SPROUT_CONSTEXPR T&&
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tuple_get(sprout::array<T, N>&& t) SPROUT_NOEXCEPT {
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return sprout::move(sprout::tuples::get<I>(t));
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}
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} // namespace sprout
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namespace std {
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//
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// tuple_size
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//
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template<typename T, std::size_t N>
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struct tuple_size<sprout::array<T, N> >
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: public std::integral_constant<std::size_t, N>
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{};
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//
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// tuple_element
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//
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template<std::size_t I, typename T, std::size_t N>
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struct tuple_element<I, sprout::array<T, N> > {
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public:
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static_assert(I < N, "tuple_element<>: index out of range");
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typedef T type;
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};
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} // namespace std
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#endif // #ifndef SPROUT_ARRAY_TUPLE_HPP
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