projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2014-2015 Kohei Takahashi | |
| 3 | ||
| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | ==============================================================================*/ | |
| 7 | #ifndef FUSION_TUPLE_14122014_0102 | |
| 8 | #define FUSION_TUPLE_14122014_0102 | |
| 9 | ||
| 10 | #include <boost/fusion/support/config.hpp> | |
| 11 | #include <boost/fusion/tuple/tuple_fwd.hpp> | |
| 12 | ||
| 13 | /////////////////////////////////////////////////////////////////////////////// | |
| 14 | // With no variadics, we will use the C++03 version | |
| 15 | /////////////////////////////////////////////////////////////////////////////// | |
| 16 | #if !defined(BOOST_FUSION_HAS_VARIADIC_TUPLE) | |
| 17 | # include <boost/fusion/tuple/detail/tuple.hpp> | |
| 18 | #else | |
| 19 | ||
| 20 | /////////////////////////////////////////////////////////////////////////////// | |
| 21 | // C++11 interface | |
| 22 | /////////////////////////////////////////////////////////////////////////////// | |
| 23 | #include <boost/core/enable_if.hpp> | |
| 24 | #include <boost/fusion/container/vector/vector.hpp> | |
| 25 | #include <boost/fusion/sequence/intrinsic/size.hpp> | |
| 26 | #include <boost/fusion/sequence/intrinsic/value_at.hpp> | |
| 27 | #include <boost/fusion/sequence/intrinsic/at.hpp> | |
| 28 | #include <boost/fusion/sequence/comparison.hpp> | |
| 29 | #include <boost/fusion/sequence/io.hpp> | |
| 30 | #include <boost/fusion/support/detail/and.hpp> | |
| 31 | #include <boost/type_traits/is_convertible.hpp> | |
| 32 | #include <utility> | |
| 33 | ||
| 34 | namespace boost { namespace fusion | |
| 35 | { | |
| 36 | template <typename ...T> | |
| 37 | struct tuple : vector<T...> | |
| 38 | { | |
| 39 | typedef vector<T...> base_type; | |
| 40 | ||
| 41 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 42 | tuple() | |
| 43 | : base_type() {} | |
| 44 | ||
| 45 | template < | |
| 46 | typename ...U | |
| 47 | , typename = typename boost::enable_if_c< | |
| 48 | sizeof...(U) >= sizeof...(T) | |
| 49 | >::type | |
| 50 | > | |
| 51 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 52 | tuple(tuple<U...> const& other) | |
| 53 | : base_type(other) {} | |
| 54 | ||
| 55 | template < | |
| 56 | typename ...U | |
| 57 | , typename = typename boost::enable_if_c< | |
| 58 | sizeof...(U) >= sizeof...(T) | |
| 59 | >::type | |
| 60 | > | |
| 61 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 62 | tuple(tuple<U...>&& other) | |
| 63 | : base_type(std::move(other)) {} | |
| 64 | ||
| 65 | template < | |
| 66 | typename ...U | |
| 67 | , typename = typename boost::enable_if_c<( | |
| 68 | fusion::detail::and_<is_convertible<U, T>...>::value && | |
| 69 | sizeof...(U) >= 1 | |
| 70 | )>::type | |
| 71 | > | |
| 72 | /*BOOST_CONSTEXPR*/ BOOST_FUSION_GPU_ENABLED | |
| 73 | explicit | |
| 74 | tuple(U&&... args) | |
| 75 | : base_type(std::forward<U>(args)...) {} | |
| 76 | ||
| 77 | template<typename U1, typename U2> | |
| 78 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 79 | tuple(std::pair<U1, U2> const& other) | |
| 80 | : base_type(other.first, other.second) {} | |
| 81 | ||
| 82 | template<typename U1, typename U2> | |
| 83 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 84 | tuple(std::pair<U1, U2>&& other) | |
| 85 | : base_type(std::move(other.first), std::move(other.second)) {} | |
| 86 | ||
| 87 | template<typename U> | |
| 88 | BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 89 | tuple& operator=(U&& rhs) | |
| 90 | { | |
| 91 | base_type::operator=(std::forward<U>(rhs)); | |
| 92 | return *this; | |
| 93 | } | |
| 94 | }; | |
| 95 | ||
| 96 | template <typename Tuple> | |
| 97 | struct tuple_size : result_of::size<Tuple> {}; | |
| 98 | ||
| 99 | template <int N, typename Tuple> | |
| 100 | struct tuple_element : result_of::value_at_c<Tuple, N> {}; | |
| 101 | ||
| 102 | template <int N, typename Tuple> | |
| 103 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 104 | inline typename result_of::at_c<Tuple, N>::type | |
| 105 | get(Tuple& tup) | |
| 106 | { | |
| 107 | return at_c<N>(tup); | |
| 108 | } | |
| 109 | ||
| 110 | template <int N, typename Tuple> | |
| 111 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 112 | inline typename result_of::at_c<Tuple const, N>::type | |
| 113 | get(Tuple const& tup) | |
| 114 | { | |
| 115 | return at_c<N>(tup); | |
| 116 | } | |
| 117 | }} | |
| 118 | ||
| 119 | #endif | |
| 120 | #endif | |
| 121 |