mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_INDEX_TUPLE_TUPLE_HPP
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#define SPROUT_INDEX_TUPLE_TUPLE_HPP
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#include <cstddef>
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#include <tuple>
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#include <sprout/config.hpp>
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#include <sprout/index_tuple/integer_sequence.hpp>
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#include <sprout/index_tuple/index_tuple.hpp>
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#include <sprout/utility/pack.hpp>
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#include <sprout/type_traits/integral_constant.hpp>
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namespace std {
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#if defined(__clang__)
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# pragma clang diagnostic push
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# pragma clang diagnostic ignored "-Wmismatched-tags"
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#endif
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//
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// tuple_size
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//
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template<typename T, T... Is>
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struct tuple_size<sprout::integer_sequence<T, Is...> >
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: public sprout::integral_constant<std::size_t, sizeof...(Is)>
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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, T... Is>
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struct tuple_element<I, sprout::integer_sequence<T, Is...> > {
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static_assert(I < sizeof...(Is), "tuple_element<>: index out of range");
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public:
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typedef typename sprout::pack_element_c<I, T, Is...>::type type;
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};
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#if !SPROUT_USE_TEMPLATE_ALIASES
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//
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// tuple_size
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//
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template<sprout::index_t... Indexes>
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struct tuple_size<sprout::index_tuple<Indexes...> >
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: public std::tuple_size<sprout::integer_sequence<sprout::index_t, Indexes...> >
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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, sprout::index_t... Indexes>
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struct tuple_element<I, sprout::index_tuple<Indexes...> >
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: public std::tuple_element<I, sprout::integer_sequence<sprout::index_t, Indexes...> >
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{};
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//
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// tuple_size
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//
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template<sprout::uindex_t... Indexes>
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struct tuple_size<sprout::uindex_tuple<Indexes...> >
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: public std::tuple_size<sprout::integer_sequence<sprout::uindex_t, Indexes...> >
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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, sprout::uindex_t... Indexes>
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struct tuple_element<I, sprout::uindex_tuple<Indexes...> >
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: public std::tuple_element<I, sprout::integer_sequence<sprout::uindex_t, Indexes...> >
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{};
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#endif // #if SPROUT_USE_TEMPLATE_ALIASES
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#if defined(__clang__)
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# pragma clang diagnostic pop
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#endif
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} // namespace std
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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, T... Is>
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inline SPROUT_CONSTEXPR typename std::tuple_element<I, sprout::integer_sequence<T, Is...> >::type
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tuple_get(sprout::integer_sequence<T, Is...>) SPROUT_NOEXCEPT {
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static_assert(I < sizeof...(Is), "tuple_get: index out of range");
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typedef typename std::tuple_element<I, sprout::integer_sequence<T, Is...> >::type type;
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return type();
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}
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#if !SPROUT_USE_TEMPLATE_ALIASES
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//
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// tuple_get
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//
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template<std::size_t I, sprout::index_t... Indexes>
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inline SPROUT_CONSTEXPR typename std::tuple_element<I, sprout::index_tuple<Indexes...> >::type
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tuple_get(sprout::index_tuple<Indexes...>) SPROUT_NOEXCEPT {
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static_assert(I < sizeof...(Indexes), "tuple_get: index out of range");
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typedef typename std::tuple_element<I, sprout::index_tuple<Indexes...> >::type type;
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return type();
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}
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//
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// tuple_get
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//
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template<std::size_t I, sprout::uindex_t... Indexes>
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inline SPROUT_CONSTEXPR typename std::tuple_element<I, sprout::uindex_tuple<Indexes...> >::type
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tuple_get(sprout::uindex_tuple<Indexes...>) SPROUT_NOEXCEPT {
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static_assert(I < sizeof...(Indexes), "tuple_get: index out of range");
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typedef typename std::tuple_element<I, sprout::uindex_tuple<Indexes...> >::type type;
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return type();
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}
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#endif // #if SPROUT_USE_TEMPLATE_ALIASES
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} // namespace sprout
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#endif // #ifndef SPROUT_INDEX_TUPLE_TUPLE_HPP
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