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- /*=============================================================================
- 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
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