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/usr/include/boost/fusion/tuple/tuple.hpp
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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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