| /*============================================================================= |
| Copyright (c) 2014-2015 Kohei Takahashi |
| |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| ==============================================================================*/ |
| #ifndef FUSION_TUPLE_14122014_0102 |
| #define FUSION_TUPLE_14122014_0102 |
| |
| #include <boost/fusion/support/config.hpp> |
| #include <boost/fusion/tuple/tuple_fwd.hpp> |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // With no variadics, we will use the C++03 version |
| /////////////////////////////////////////////////////////////////////////////// |
| #if !defined(BOOST_FUSION_HAS_VARIADIC_TUPLE) |
| # include <boost/fusion/tuple/detail/tuple.hpp> |
| #else |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // C++11 interface |
| /////////////////////////////////////////////////////////////////////////////// |
| #include <boost/core/enable_if.hpp> |
| #include <boost/fusion/container/vector/vector.hpp> |
| #include <boost/fusion/sequence/intrinsic/size.hpp> |
| #include <boost/fusion/sequence/intrinsic/value_at.hpp> |
| #include <boost/fusion/sequence/intrinsic/at.hpp> |
| #include <boost/fusion/sequence/comparison.hpp> |
| #include <boost/fusion/sequence/io.hpp> |
| #include <boost/fusion/support/detail/and.hpp> |
| #include <boost/type_traits/is_convertible.hpp> |
| #include <utility> |
| |
| namespace boost { namespace fusion |
| { |
| template <typename ...T> |
| struct tuple |
| : vector_detail::vector_data< |
| typename detail::make_index_sequence<sizeof...(T)>::type |
| , T... |
| > |
| { |
| typedef vector_detail::vector_data< |
| typename detail::make_index_sequence<sizeof...(T)>::type |
| , T... |
| > base; |
| |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| BOOST_DEFAULTED_FUNCTION(tuple(), {}) |
| |
| template < |
| typename ...U |
| , typename = typename boost::enable_if_c< |
| sizeof...(U) >= sizeof...(T) |
| >::type |
| > |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| tuple(tuple<U...> const& other) |
| : base(vector_detail::each_elem(), other) {} |
| |
| template < |
| typename ...U |
| , typename = typename boost::enable_if_c< |
| sizeof...(U) >= sizeof...(T) |
| >::type |
| > |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| tuple(tuple<U...>&& other) |
| : base(vector_detail::each_elem(), std::move(other)) {} |
| |
| template < |
| typename ...U |
| , typename = typename boost::enable_if_c<( |
| fusion::detail::and_<is_convertible<U, T>...>::value && |
| sizeof...(U) >= 1 |
| )>::type |
| > |
| /*BOOST_CONSTEXPR*/ BOOST_FUSION_GPU_ENABLED |
| explicit |
| tuple(U&&... args) |
| : base(vector_detail::each_elem(), std::forward<U>(args)...) {} |
| |
| template<typename U1, typename U2> |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| tuple(std::pair<U1, U2> const& other) |
| : base(vector_detail::each_elem(), other.first, other.second) {} |
| |
| template<typename U1, typename U2> |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| tuple(std::pair<U1, U2>&& other) |
| : base(vector_detail::each_elem(), std::move(other.first), std::move(other.second)) {} |
| |
| template<typename U> |
| BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| tuple& operator=(U&& rhs) |
| { |
| base::assign_sequence(std::forward<U>(rhs)); |
| return *this; |
| } |
| }; |
| |
| template <typename Tuple> |
| struct tuple_size : result_of::size<Tuple> {}; |
| |
| template <int N, typename Tuple> |
| struct tuple_element : result_of::value_at_c<Tuple, N> {}; |
| |
| template <int N, typename Tuple> |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| inline typename result_of::at_c<Tuple, N>::type |
| get(Tuple& tup) |
| { |
| return at_c<N>(tup); |
| } |
| |
| template <int N, typename Tuple> |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| inline typename result_of::at_c<Tuple const, N>::type |
| get(Tuple const& tup) |
| { |
| return at_c<N>(tup); |
| } |
| }} |
| |
| #endif |
| #endif |
| |