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| 1 | 13 | up20180614 | // -*- C++ -*- |
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| 2 | //===--------------------------- tuple ------------------------------------===// |
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| 3 | // |
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| 4 | // The LLVM Compiler Infrastructure |
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| 5 | // |
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| 6 | // This file is distributed under the University of Illinois Open Source |
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| 7 | // License. See LICENSE.TXT for details. |
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| 8 | // |
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| 9 | //===----------------------------------------------------------------------===// |
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| 10 | |||
| 11 | #ifndef _LIBCPP_TUPLE |
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| 12 | #define _LIBCPP_TUPLE |
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| 13 | |||
| 14 | /* |
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| 15 | tuple synopsis |
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| 16 | |||
| 17 | namespace std |
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| 18 | {
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| 19 | |||
| 20 | template <class... T> |
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| 21 | class tuple {
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| 22 | public: |
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| 23 | constexpr tuple(); |
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| 24 | explicit tuple(const T&...); // constexpr in C++14 |
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| 25 | template <class... U> |
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| 26 | explicit tuple(U&&...); // constexpr in C++14 |
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| 27 | tuple(const tuple&) = default; |
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| 28 | tuple(tuple&&) = default; |
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| 29 | template <class... U> |
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| 30 | tuple(const tuple<U...>&); // constexpr in C++14 |
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| 31 | template <class... U> |
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| 32 | tuple(tuple<U...>&&); // constexpr in C++14 |
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| 33 | template <class U1, class U2> |
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| 34 | tuple(const pair<U1, U2>&); // iff sizeof...(T) == 2 // constexpr in C++14 |
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| 35 | template <class U1, class U2> |
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| 36 | tuple(pair<U1, U2>&&); // iff sizeof...(T) == 2 // constexpr in C++14 |
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| 37 | |||
| 38 | // allocator-extended constructors |
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| 39 | template <class Alloc> |
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| 40 | tuple(allocator_arg_t, const Alloc& a); |
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| 41 | template <class Alloc> |
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| 42 | tuple(allocator_arg_t, const Alloc& a, const T&...); |
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| 43 | template <class Alloc, class... U> |
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| 44 | tuple(allocator_arg_t, const Alloc& a, U&&...); |
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| 45 | template <class Alloc> |
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| 46 | tuple(allocator_arg_t, const Alloc& a, const tuple&); |
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| 47 | template <class Alloc> |
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| 48 | tuple(allocator_arg_t, const Alloc& a, tuple&&); |
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| 49 | template <class Alloc, class... U> |
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| 50 | tuple(allocator_arg_t, const Alloc& a, const tuple<U...>&); |
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| 51 | template <class Alloc, class... U> |
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| 52 | tuple(allocator_arg_t, const Alloc& a, tuple<U...>&&); |
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| 53 | template <class Alloc, class U1, class U2> |
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| 54 | tuple(allocator_arg_t, const Alloc& a, const pair<U1, U2>&); |
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| 55 | template <class Alloc, class U1, class U2> |
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| 56 | tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>&&); |
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| 57 | |||
| 58 | tuple& operator=(const tuple&); |
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| 59 | tuple& |
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| 60 | operator=(tuple&&) noexcept(AND(is_nothrow_move_assignable<T>::value ...)); |
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| 61 | template <class... U> |
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| 62 | tuple& operator=(const tuple<U...>&); |
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| 63 | template <class... U> |
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| 64 | tuple& operator=(tuple<U...>&&); |
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| 65 | template <class U1, class U2> |
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| 66 | tuple& operator=(const pair<U1, U2>&); // iff sizeof...(T) == 2 |
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| 67 | template <class U1, class U2> |
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| 68 | tuple& operator=(pair<U1, U2>&&); //iffsizeof...(T) == 2 |
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| 69 | |||
| 70 | void swap(tuple&) noexcept(AND(swap(declval<T&>(), declval<T&>())...)); |
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| 71 | }; |
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| 72 | |||
| 73 | const unspecified ignore; |
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| 74 | |||
| 75 | template <class... T> tuple<V...> make_tuple(T&&...); // constexpr in C++14 |
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| 76 | template <class... T> tuple<ATypes...> forward_as_tuple(T&&...) noexcept; // constexpr in C++14 |
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| 77 | template <class... T> tuple<T&...> tie(T&...) noexcept; // constexpr in C++14 |
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| 78 | template <class... Tuples> tuple<CTypes...> tuple_cat(Tuples&&... tpls); // constexpr in C++14 |
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| 79 | |||
| 80 | // 20.4.1.4, tuple helper classes: |
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| 81 | template <class T> class tuple_size; // undefined |
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| 82 | template <class... T> class tuple_size<tuple<T...>>; |
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| 83 | template <intsize_t I, class T> class tuple_element; // undefined |
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| 84 | template <intsize_t I, class... T> class tuple_element<I, tuple<T...>>; |
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| 85 | template <size_t _Ip, class ..._Tp> |
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| 86 | using tuple_element_t = typename tuple_element <_Ip, _Tp...>::type; // C++14 |
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| 87 | |||
| 88 | // 20.4.1.5, element access: |
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| 89 | template <intsize_t I, class... T> |
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| 90 | typename tuple_element<I, tuple<T...>>::type& |
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| 91 | get(tuple<T...>&) noexcept; // constexpr in C++14 |
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| 92 | template <intsize_t I, class... T> |
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| 93 | typename const tuple_element<I, tuple<T...>>::type & |
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| 94 | get(const tuple<T...>&) noexcept; // constexpr in C++14 |
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| 95 | template <intsize_t I, class... T> |
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| 96 | typename tuple_element<I, tuple<T...>>::type&& |
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| 97 | get(tuple<T...>&&) noexcept; // constexpr in C++14 |
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| 98 | |||
| 99 | template <class T1, class... T> |
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| 100 | constexpr T1& get(tuple<T...>&) noexcept; // C++14 |
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| 101 | template <class T1, class... T> |
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| 102 | constexpr T1 const& get(const tuple<T...>&) noexcept; // C++14 |
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| 103 | template <class T1, class... T> |
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| 104 | constexpr T1&& get(tuple<T...>&&) noexcept; // C++14 |
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| 105 | |||
| 106 | // 20.4.1.6, relational operators: |
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| 107 | template<class... T, class... U> bool operator==(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 |
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| 108 | template<class... T, class... U> bool operator<(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 |
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| 109 | template<class... T, class... U> bool operator!=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 |
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| 110 | template<class... T, class... U> bool operator>(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 |
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| 111 | template<class... T, class... U> bool operator<=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 |
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| 112 | template<class... T, class... U> bool operator>=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 |
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| 113 | |||
| 114 | template <class... Types, class Alloc> |
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| 115 | struct uses_allocator<tuple<Types...>, Alloc>; |
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| 116 | |||
| 117 | template <class... Types> |
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| 118 | void |
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| 119 | swap(tuple<Types...>& x, tuple<Types...>& y) noexcept(noexcept(x.swap(y))); |
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| 120 | |||
| 121 | } // std |
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| 122 | |||
| 123 | */ |
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| 124 | |||
| 125 | #include <__config> |
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| 126 | #include <__tuple> |
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| 127 | #include <cstddef> |
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| 128 | #include <type_traits> |
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| 129 | #include <__functional_base> |
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| 130 | #include <utility> |
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| 131 | |||
| 132 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
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| 133 | #pragma GCC system_header |
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| 134 | #endif |
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| 135 | |||
| 136 | _LIBCPP_BEGIN_NAMESPACE_STD |
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| 137 | |||
| 138 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
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| 139 | |||
| 140 | // tuple_size |
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| 141 | |||
| 142 | template <class ..._Tp> |
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| 143 | class _LIBCPP_TYPE_VIS_ONLY tuple_size<tuple<_Tp...> > |
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| 144 | : public integral_constant<size_t, sizeof...(_Tp)> |
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| 145 | {
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| 146 | }; |
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| 147 | |||
| 148 | // tuple_element |
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| 149 | |||
| 150 | template <size_t _Ip, class ..._Tp> |
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| 151 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<_Ip, tuple<_Tp...> > |
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| 152 | {
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| 153 | public: |
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| 154 | typedef typename tuple_element<_Ip, __tuple_types<_Tp...> >::type type; |
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| 155 | }; |
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| 156 | |||
| 157 | #if _LIBCPP_STD_VER > 11 |
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| 158 | template <size_t _Ip, class ..._Tp> |
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| 159 | using tuple_element_t = typename tuple_element <_Ip, _Tp...>::type; |
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| 160 | #endif |
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| 161 | |||
| 162 | // __tuple_leaf |
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| 163 | |||
| 164 | template <size_t _Ip, class _Hp, |
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| 165 | bool=is_empty<_Hp>::value && !__libcpp_is_final<_Hp>::value |
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| 166 | > |
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| 167 | class __tuple_leaf; |
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| 168 | |||
| 169 | template <size_t _Ip, class _Hp, bool _Ep> |
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| 170 | inline _LIBCPP_INLINE_VISIBILITY |
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| 171 | void swap(__tuple_leaf<_Ip, _Hp, _Ep>& __x, __tuple_leaf<_Ip, _Hp, _Ep>& __y) |
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| 172 | _NOEXCEPT_(__is_nothrow_swappable<_Hp>::value) |
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| 173 | {
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| 174 | swap(__x.get(), __y.get()); |
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| 175 | } |
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| 176 | |||
| 177 | template <size_t _Ip, class _Hp, bool> |
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| 178 | class __tuple_leaf |
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| 179 | {
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| 180 | _Hp value; |
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| 181 | |||
| 182 | __tuple_leaf& operator=(const __tuple_leaf&); |
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| 183 | public: |
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| 184 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() |
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| 185 | _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) : value() |
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| 186 | {static_assert(!is_reference<_Hp>::value,
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| 187 | "Attempted to default construct a reference element in a tuple");} |
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| 188 | |||
| 189 | template <class _Alloc> |
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| 190 | _LIBCPP_INLINE_VISIBILITY |
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| 191 | __tuple_leaf(integral_constant<int, 0>, const _Alloc&) |
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| 192 | : value() |
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| 193 | {static_assert(!is_reference<_Hp>::value,
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| 194 | "Attempted to default construct a reference element in a tuple");} |
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| 195 | |||
| 196 | template <class _Alloc> |
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| 197 | _LIBCPP_INLINE_VISIBILITY |
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| 198 | __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a) |
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| 199 | : value(allocator_arg_t(), __a) |
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| 200 | {static_assert(!is_reference<_Hp>::value,
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| 201 | "Attempted to default construct a reference element in a tuple");} |
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| 202 | |||
| 203 | template <class _Alloc> |
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| 204 | _LIBCPP_INLINE_VISIBILITY |
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| 205 | __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a) |
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| 206 | : value(__a) |
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| 207 | {static_assert(!is_reference<_Hp>::value,
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| 208 | "Attempted to default construct a reference element in a tuple");} |
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| 209 | |||
| 210 | template <class _Tp, |
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| 211 | class = typename enable_if< |
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| 212 | __lazy_and< |
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| 213 | __lazy_not<is_same<typename decay<_Tp>::type, __tuple_leaf>> |
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| 214 | , is_constructible<_Hp, _Tp> |
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| 215 | >::value |
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| 216 | >::type |
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| 217 | > |
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| 218 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
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| 219 | explicit __tuple_leaf(_Tp&& __t) _NOEXCEPT_((is_nothrow_constructible<_Hp, _Tp>::value)) |
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| 220 | : value(_VSTD::forward<_Tp>(__t)) |
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| 221 | {static_assert(!is_reference<_Hp>::value ||
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| 222 | (is_lvalue_reference<_Hp>::value && |
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| 223 | (is_lvalue_reference<_Tp>::value || |
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| 224 | is_same<typename remove_reference<_Tp>::type, |
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| 225 | reference_wrapper< |
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| 226 | typename remove_reference<_Hp>::type |
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| 227 | > |
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| 228 | >::value)) || |
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| 229 | (is_rvalue_reference<_Hp>::value && |
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| 230 | !is_lvalue_reference<_Tp>::value), |
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| 231 | "Attempted to construct a reference element in a tuple with an rvalue");} |
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| 232 | |||
| 233 | template <class _Tp, class _Alloc> |
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| 234 | _LIBCPP_INLINE_VISIBILITY |
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| 235 | explicit __tuple_leaf(integral_constant<int, 0>, const _Alloc&, _Tp&& __t) |
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| 236 | : value(_VSTD::forward<_Tp>(__t)) |
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| 237 | {static_assert(!is_lvalue_reference<_Hp>::value ||
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| 238 | (is_lvalue_reference<_Hp>::value && |
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| 239 | (is_lvalue_reference<_Tp>::value || |
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| 240 | is_same<typename remove_reference<_Tp>::type, |
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| 241 | reference_wrapper< |
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| 242 | typename remove_reference<_Hp>::type |
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| 243 | > |
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| 244 | >::value)), |
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| 245 | "Attempted to construct a reference element in a tuple with an rvalue");} |
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| 246 | |||
| 247 | template <class _Tp, class _Alloc> |
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| 248 | _LIBCPP_INLINE_VISIBILITY |
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| 249 | explicit __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a, _Tp&& __t) |
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| 250 | : value(allocator_arg_t(), __a, _VSTD::forward<_Tp>(__t)) |
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| 251 | {static_assert(!is_lvalue_reference<_Hp>::value ||
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| 252 | (is_lvalue_reference<_Hp>::value && |
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| 253 | (is_lvalue_reference<_Tp>::value || |
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| 254 | is_same<typename remove_reference<_Tp>::type, |
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| 255 | reference_wrapper< |
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| 256 | typename remove_reference<_Hp>::type |
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| 257 | > |
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| 258 | >::value)), |
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| 259 | "Attempted to construct a reference element in a tuple with an rvalue");} |
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| 260 | |||
| 261 | template <class _Tp, class _Alloc> |
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| 262 | _LIBCPP_INLINE_VISIBILITY |
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| 263 | explicit __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a, _Tp&& __t) |
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| 264 | : value(_VSTD::forward<_Tp>(__t), __a) |
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| 265 | {static_assert(!is_lvalue_reference<_Hp>::value ||
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| 266 | (is_lvalue_reference<_Hp>::value && |
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| 267 | (is_lvalue_reference<_Tp>::value || |
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| 268 | is_same<typename remove_reference<_Tp>::type, |
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| 269 | reference_wrapper< |
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| 270 | typename remove_reference<_Hp>::type |
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| 271 | > |
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| 272 | >::value)), |
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| 273 | "Attempted to construct a reference element in a tuple with an rvalue");} |
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| 274 | |||
| 275 | __tuple_leaf(const __tuple_leaf& __t) = default; |
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| 276 | __tuple_leaf(__tuple_leaf&& __t) = default; |
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| 277 | |||
| 278 | template <class _Tp> |
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| 279 | _LIBCPP_INLINE_VISIBILITY |
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| 280 | __tuple_leaf& |
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| 281 | operator=(_Tp&& __t) _NOEXCEPT_((is_nothrow_assignable<_Hp&, _Tp>::value)) |
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| 282 | {
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| 283 | value = _VSTD::forward<_Tp>(__t); |
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| 284 | return *this; |
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| 285 | } |
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| 286 | |||
| 287 | _LIBCPP_INLINE_VISIBILITY |
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| 288 | int swap(__tuple_leaf& __t) _NOEXCEPT_(__is_nothrow_swappable<__tuple_leaf>::value) |
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| 289 | {
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| 290 | _VSTD::swap(*this, __t); |
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| 291 | return 0; |
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| 292 | } |
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| 293 | |||
| 294 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 _Hp& get() _NOEXCEPT {return value;}
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| 295 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const _Hp& get() const _NOEXCEPT {return value;}
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| 296 | }; |
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| 297 | |||
| 298 | template <size_t _Ip, class _Hp> |
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| 299 | class __tuple_leaf<_Ip, _Hp, true> |
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| 300 | : private _Hp |
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| 301 | {
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| 302 | |||
| 303 | __tuple_leaf& operator=(const __tuple_leaf&); |
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| 304 | public: |
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| 305 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() |
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| 306 | _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) {}
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| 307 | |||
| 308 | template <class _Alloc> |
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| 309 | _LIBCPP_INLINE_VISIBILITY |
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| 310 | __tuple_leaf(integral_constant<int, 0>, const _Alloc&) {}
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| 311 | |||
| 312 | template <class _Alloc> |
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| 313 | _LIBCPP_INLINE_VISIBILITY |
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| 314 | __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a) |
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| 315 | : _Hp(allocator_arg_t(), __a) {}
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| 316 | |||
| 317 | template <class _Alloc> |
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| 318 | _LIBCPP_INLINE_VISIBILITY |
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| 319 | __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a) |
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| 320 | : _Hp(__a) {}
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| 321 | |||
| 322 | template <class _Tp, |
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| 323 | class = typename enable_if< |
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| 324 | __lazy_and< |
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| 325 | __lazy_not<is_same<typename decay<_Tp>::type, __tuple_leaf>> |
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| 326 | , is_constructible<_Hp, _Tp> |
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| 327 | >::value |
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| 328 | >::type |
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| 329 | > |
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| 330 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
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| 331 | explicit __tuple_leaf(_Tp&& __t) _NOEXCEPT_((is_nothrow_constructible<_Hp, _Tp>::value)) |
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| 332 | : _Hp(_VSTD::forward<_Tp>(__t)) {}
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| 333 | |||
| 334 | template <class _Tp, class _Alloc> |
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| 335 | _LIBCPP_INLINE_VISIBILITY |
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| 336 | explicit __tuple_leaf(integral_constant<int, 0>, const _Alloc&, _Tp&& __t) |
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| 337 | : _Hp(_VSTD::forward<_Tp>(__t)) {}
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| 338 | |||
| 339 | template <class _Tp, class _Alloc> |
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| 340 | _LIBCPP_INLINE_VISIBILITY |
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| 341 | explicit __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a, _Tp&& __t) |
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| 342 | : _Hp(allocator_arg_t(), __a, _VSTD::forward<_Tp>(__t)) {}
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| 343 | |||
| 344 | template <class _Tp, class _Alloc> |
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| 345 | _LIBCPP_INLINE_VISIBILITY |
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| 346 | explicit __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a, _Tp&& __t) |
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| 347 | : _Hp(_VSTD::forward<_Tp>(__t), __a) {}
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| 348 | |||
| 349 | __tuple_leaf(__tuple_leaf const &) = default; |
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| 350 | __tuple_leaf(__tuple_leaf &&) = default; |
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| 351 | |||
| 352 | template <class _Tp> |
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| 353 | _LIBCPP_INLINE_VISIBILITY |
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| 354 | __tuple_leaf& |
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| 355 | operator=(_Tp&& __t) _NOEXCEPT_((is_nothrow_assignable<_Hp&, _Tp>::value)) |
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| 356 | {
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| 357 | _Hp::operator=(_VSTD::forward<_Tp>(__t)); |
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| 358 | return *this; |
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| 359 | } |
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| 360 | |||
| 361 | _LIBCPP_INLINE_VISIBILITY |
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| 362 | int |
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| 363 | swap(__tuple_leaf& __t) _NOEXCEPT_(__is_nothrow_swappable<__tuple_leaf>::value) |
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| 364 | {
|
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| 365 | _VSTD::swap(*this, __t); |
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| 366 | return 0; |
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| 367 | } |
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| 368 | |||
| 369 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 _Hp& get() _NOEXCEPT {return static_cast<_Hp&>(*this);}
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| 370 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const _Hp& get() const _NOEXCEPT {return static_cast<const _Hp&>(*this);}
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| 371 | }; |
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| 372 | |||
| 373 | template <class ..._Tp> |
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| 374 | _LIBCPP_INLINE_VISIBILITY |
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| 375 | void __swallow(_Tp&&...) _NOEXCEPT {}
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| 376 | |||
| 377 | template <bool ..._Pred> |
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| 378 | struct __all |
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| 379 | : is_same<__all<_Pred...>, __all<(_Pred, true)...>> |
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| 380 | { };
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| 381 | |||
| 382 | template <class _Tp> |
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| 383 | struct __all_default_constructible; |
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| 384 | |||
| 385 | template <class ..._Tp> |
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| 386 | struct __all_default_constructible<__tuple_types<_Tp...>> |
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| 387 | : __all<is_default_constructible<_Tp>::value...> |
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| 388 | { };
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| 389 | |||
| 390 | // __tuple_impl |
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| 391 | |||
| 392 | template<class _Indx, class ..._Tp> struct __tuple_impl; |
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| 393 | |||
| 394 | template<size_t ..._Indx, class ..._Tp> |
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| 395 | struct __tuple_impl<__tuple_indices<_Indx...>, _Tp...> |
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| 396 | : public __tuple_leaf<_Indx, _Tp>... |
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| 397 | {
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| 398 | _LIBCPP_INLINE_VISIBILITY |
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| 399 | _LIBCPP_CONSTEXPR __tuple_impl() |
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| 400 | _NOEXCEPT_(__all<is_nothrow_default_constructible<_Tp>::value...>::value) {}
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| 401 | |||
| 402 | template <size_t ..._Uf, class ..._Tf, |
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| 403 | size_t ..._Ul, class ..._Tl, class ..._Up> |
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| 404 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
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| 405 | explicit |
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| 406 | __tuple_impl(__tuple_indices<_Uf...>, __tuple_types<_Tf...>, |
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| 407 | __tuple_indices<_Ul...>, __tuple_types<_Tl...>, |
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| 408 | _Up&&... __u) |
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| 409 | _NOEXCEPT_((__all<is_nothrow_constructible<_Tf, _Up>::value...>::value && |
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| 410 | __all<is_nothrow_default_constructible<_Tl>::value...>::value)) : |
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| 411 | __tuple_leaf<_Uf, _Tf>(_VSTD::forward<_Up>(__u))..., |
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| 412 | __tuple_leaf<_Ul, _Tl>()... |
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| 413 | {}
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| 414 | |||
| 415 | template <class _Alloc, size_t ..._Uf, class ..._Tf, |
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| 416 | size_t ..._Ul, class ..._Tl, class ..._Up> |
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| 417 | _LIBCPP_INLINE_VISIBILITY |
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| 418 | explicit |
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| 419 | __tuple_impl(allocator_arg_t, const _Alloc& __a, |
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| 420 | __tuple_indices<_Uf...>, __tuple_types<_Tf...>, |
||
| 421 | __tuple_indices<_Ul...>, __tuple_types<_Tl...>, |
||
| 422 | _Up&&... __u) : |
||
| 423 | __tuple_leaf<_Uf, _Tf>(__uses_alloc_ctor<_Tf, _Alloc, _Up>(), __a, |
||
| 424 | _VSTD::forward<_Up>(__u))..., |
||
| 425 | __tuple_leaf<_Ul, _Tl>(__uses_alloc_ctor<_Tl, _Alloc>(), __a)... |
||
| 426 | {}
|
||
| 427 | |||
| 428 | template <class _Tuple, |
||
| 429 | class = typename enable_if |
||
| 430 | < |
||
| 431 | __tuple_constructible<_Tuple, tuple<_Tp...> >::value |
||
| 432 | >::type |
||
| 433 | > |
||
| 434 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 435 | __tuple_impl(_Tuple&& __t) _NOEXCEPT_((__all<is_nothrow_constructible<_Tp, typename tuple_element<_Indx, |
||
| 436 | typename __make_tuple_types<_Tuple>::type>::type>::value...>::value)) |
||
| 437 | : __tuple_leaf<_Indx, _Tp>(_VSTD::forward<typename tuple_element<_Indx, |
||
| 438 | typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<_Indx>(__t)))... |
||
| 439 | {}
|
||
| 440 | |||
| 441 | template <class _Alloc, class _Tuple, |
||
| 442 | class = typename enable_if |
||
| 443 | < |
||
| 444 | __tuple_convertible<_Tuple, tuple<_Tp...> >::value |
||
| 445 | >::type |
||
| 446 | > |
||
| 447 | _LIBCPP_INLINE_VISIBILITY |
||
| 448 | __tuple_impl(allocator_arg_t, const _Alloc& __a, _Tuple&& __t) |
||
| 449 | : __tuple_leaf<_Indx, _Tp>(__uses_alloc_ctor<_Tp, _Alloc, typename tuple_element<_Indx, |
||
| 450 | typename __make_tuple_types<_Tuple>::type>::type>(), __a, |
||
| 451 | _VSTD::forward<typename tuple_element<_Indx, |
||
| 452 | typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<_Indx>(__t)))... |
||
| 453 | {}
|
||
| 454 | |||
| 455 | template <class _Tuple> |
||
| 456 | _LIBCPP_INLINE_VISIBILITY |
||
| 457 | typename enable_if |
||
| 458 | < |
||
| 459 | __tuple_assignable<_Tuple, tuple<_Tp...> >::value, |
||
| 460 | __tuple_impl& |
||
| 461 | >::type |
||
| 462 | operator=(_Tuple&& __t) _NOEXCEPT_((__all<is_nothrow_assignable<_Tp&, typename tuple_element<_Indx, |
||
| 463 | typename __make_tuple_types<_Tuple>::type>::type>::value...>::value)) |
||
| 464 | {
|
||
| 465 | __swallow(__tuple_leaf<_Indx, _Tp>::operator=(_VSTD::forward<typename tuple_element<_Indx, |
||
| 466 | typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<_Indx>(__t)))...); |
||
| 467 | return *this; |
||
| 468 | } |
||
| 469 | |||
| 470 | __tuple_impl(const __tuple_impl&) = default; |
||
| 471 | __tuple_impl(__tuple_impl&&) = default; |
||
| 472 | |||
| 473 | _LIBCPP_INLINE_VISIBILITY |
||
| 474 | __tuple_impl& |
||
| 475 | operator=(const __tuple_impl& __t) _NOEXCEPT_((__all<is_nothrow_copy_assignable<_Tp>::value...>::value)) |
||
| 476 | {
|
||
| 477 | __swallow(__tuple_leaf<_Indx, _Tp>::operator=(static_cast<const __tuple_leaf<_Indx, _Tp>&>(__t).get())...); |
||
| 478 | return *this; |
||
| 479 | } |
||
| 480 | |||
| 481 | _LIBCPP_INLINE_VISIBILITY |
||
| 482 | __tuple_impl& |
||
| 483 | operator=(__tuple_impl&& __t) _NOEXCEPT_((__all<is_nothrow_move_assignable<_Tp>::value...>::value)) |
||
| 484 | {
|
||
| 485 | __swallow(__tuple_leaf<_Indx, _Tp>::operator=(_VSTD::forward<_Tp>(static_cast<__tuple_leaf<_Indx, _Tp>&>(__t).get()))...); |
||
| 486 | return *this; |
||
| 487 | } |
||
| 488 | |||
| 489 | _LIBCPP_INLINE_VISIBILITY |
||
| 490 | void swap(__tuple_impl& __t) |
||
| 491 | _NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) |
||
| 492 | {
|
||
| 493 | __swallow(__tuple_leaf<_Indx, _Tp>::swap(static_cast<__tuple_leaf<_Indx, _Tp>&>(__t))...); |
||
| 494 | } |
||
| 495 | }; |
||
| 496 | |||
| 497 | template <class ..._Tp> |
||
| 498 | class _LIBCPP_TYPE_VIS_ONLY tuple |
||
| 499 | {
|
||
| 500 | typedef __tuple_impl<typename __make_tuple_indices<sizeof...(_Tp)>::type, _Tp...> base; |
||
| 501 | |||
| 502 | base base_; |
||
| 503 | |||
| 504 | template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 505 | typename tuple_element<_Jp, tuple<_Up...> >::type& get(tuple<_Up...>&) _NOEXCEPT; |
||
| 506 | template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 507 | const typename tuple_element<_Jp, tuple<_Up...> >::type& get(const tuple<_Up...>&) _NOEXCEPT; |
||
| 508 | template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 509 | typename tuple_element<_Jp, tuple<_Up...> >::type&& get(tuple<_Up...>&&) _NOEXCEPT; |
||
| 510 | public: |
||
| 511 | |||
| 512 | template <bool _Dummy = true, class = typename enable_if< |
||
| 513 | __all<__dependent_type<is_default_constructible<_Tp>, _Dummy>::value...>::value |
||
| 514 | >::type> |
||
| 515 | _LIBCPP_INLINE_VISIBILITY |
||
| 516 | _LIBCPP_CONSTEXPR tuple() |
||
| 517 | _NOEXCEPT_(__all<is_nothrow_default_constructible<_Tp>::value...>::value) {}
|
||
| 518 | |||
| 519 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 520 | explicit tuple(const _Tp& ... __t) _NOEXCEPT_((__all<is_nothrow_copy_constructible<_Tp>::value...>::value)) |
||
| 521 | : base_(typename __make_tuple_indices<sizeof...(_Tp)>::type(), |
||
| 522 | typename __make_tuple_types<tuple, sizeof...(_Tp)>::type(), |
||
| 523 | typename __make_tuple_indices<0>::type(), |
||
| 524 | typename __make_tuple_types<tuple, 0>::type(), |
||
| 525 | __t... |
||
| 526 | ) {}
|
||
| 527 | |||
| 528 | template <class _Alloc> |
||
| 529 | _LIBCPP_INLINE_VISIBILITY |
||
| 530 | tuple(allocator_arg_t, const _Alloc& __a, const _Tp& ... __t) |
||
| 531 | : base_(allocator_arg_t(), __a, |
||
| 532 | typename __make_tuple_indices<sizeof...(_Tp)>::type(), |
||
| 533 | typename __make_tuple_types<tuple, sizeof...(_Tp)>::type(), |
||
| 534 | typename __make_tuple_indices<0>::type(), |
||
| 535 | typename __make_tuple_types<tuple, 0>::type(), |
||
| 536 | __t... |
||
| 537 | ) {}
|
||
| 538 | |||
| 539 | template <class ..._Up, |
||
| 540 | typename enable_if |
||
| 541 | < |
||
| 542 | sizeof...(_Up) <= sizeof...(_Tp) && |
||
| 543 | __tuple_convertible |
||
| 544 | < |
||
| 545 | tuple<_Up...>, |
||
| 546 | typename __make_tuple_types<tuple, |
||
| 547 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 548 | sizeof...(_Up) : |
||
| 549 | sizeof...(_Tp)>::type |
||
| 550 | >::value && |
||
| 551 | __all_default_constructible< |
||
| 552 | typename __make_tuple_types<tuple, sizeof...(_Tp), |
||
| 553 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 554 | sizeof...(_Up) : |
||
| 555 | sizeof...(_Tp)>::type |
||
| 556 | >::value, |
||
| 557 | bool |
||
| 558 | >::type = false |
||
| 559 | > |
||
| 560 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 561 | tuple(_Up&&... __u) |
||
| 562 | _NOEXCEPT_(( |
||
| 563 | is_nothrow_constructible<base, |
||
| 564 | typename __make_tuple_indices<sizeof...(_Up)>::type, |
||
| 565 | typename __make_tuple_types<tuple, sizeof...(_Up)>::type, |
||
| 566 | typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type, |
||
| 567 | typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type, |
||
| 568 | _Up... |
||
| 569 | >::value |
||
| 570 | )) |
||
| 571 | : base_(typename __make_tuple_indices<sizeof...(_Up)>::type(), |
||
| 572 | typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), |
||
| 573 | typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), |
||
| 574 | typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), |
||
| 575 | _VSTD::forward<_Up>(__u)...) {}
|
||
| 576 | |||
| 577 | template <class ..._Up, |
||
| 578 | typename enable_if |
||
| 579 | < |
||
| 580 | sizeof...(_Up) <= sizeof...(_Tp) && |
||
| 581 | __tuple_constructible |
||
| 582 | < |
||
| 583 | tuple<_Up...>, |
||
| 584 | typename __make_tuple_types<tuple, |
||
| 585 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 586 | sizeof...(_Up) : |
||
| 587 | sizeof...(_Tp)>::type |
||
| 588 | >::value && |
||
| 589 | !__tuple_convertible |
||
| 590 | < |
||
| 591 | tuple<_Up...>, |
||
| 592 | typename __make_tuple_types<tuple, |
||
| 593 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 594 | sizeof...(_Up) : |
||
| 595 | sizeof...(_Tp)>::type |
||
| 596 | >::value && |
||
| 597 | __all_default_constructible< |
||
| 598 | typename __make_tuple_types<tuple, sizeof...(_Tp), |
||
| 599 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 600 | sizeof...(_Up) : |
||
| 601 | sizeof...(_Tp)>::type |
||
| 602 | >::value, |
||
| 603 | bool |
||
| 604 | >::type =false |
||
| 605 | > |
||
| 606 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 607 | explicit |
||
| 608 | tuple(_Up&&... __u) |
||
| 609 | _NOEXCEPT_(( |
||
| 610 | is_nothrow_constructible<base, |
||
| 611 | typename __make_tuple_indices<sizeof...(_Up)>::type, |
||
| 612 | typename __make_tuple_types<tuple, sizeof...(_Up)>::type, |
||
| 613 | typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type, |
||
| 614 | typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type, |
||
| 615 | _Up... |
||
| 616 | >::value |
||
| 617 | )) |
||
| 618 | : base_(typename __make_tuple_indices<sizeof...(_Up)>::type(), |
||
| 619 | typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), |
||
| 620 | typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), |
||
| 621 | typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), |
||
| 622 | _VSTD::forward<_Up>(__u)...) {}
|
||
| 623 | |||
| 624 | template <class _Alloc, class ..._Up, |
||
| 625 | class = typename enable_if |
||
| 626 | < |
||
| 627 | sizeof...(_Up) <= sizeof...(_Tp) && |
||
| 628 | __tuple_convertible |
||
| 629 | < |
||
| 630 | tuple<_Up...>, |
||
| 631 | typename __make_tuple_types<tuple, |
||
| 632 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 633 | sizeof...(_Up) : |
||
| 634 | sizeof...(_Tp)>::type |
||
| 635 | >::value && |
||
| 636 | __all_default_constructible< |
||
| 637 | typename __make_tuple_types<tuple, sizeof...(_Tp), |
||
| 638 | sizeof...(_Up) < sizeof...(_Tp) ? |
||
| 639 | sizeof...(_Up) : |
||
| 640 | sizeof...(_Tp)>::type |
||
| 641 | >::value |
||
| 642 | >::type |
||
| 643 | > |
||
| 644 | _LIBCPP_INLINE_VISIBILITY |
||
| 645 | tuple(allocator_arg_t, const _Alloc& __a, _Up&&... __u) |
||
| 646 | : base_(allocator_arg_t(), __a, |
||
| 647 | typename __make_tuple_indices<sizeof...(_Up)>::type(), |
||
| 648 | typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), |
||
| 649 | typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), |
||
| 650 | typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), |
||
| 651 | _VSTD::forward<_Up>(__u)...) {}
|
||
| 652 | |||
| 653 | template <class _Tuple, |
||
| 654 | typename enable_if |
||
| 655 | < |
||
| 656 | __tuple_convertible<_Tuple, tuple>::value, |
||
| 657 | bool |
||
| 658 | >::type = false |
||
| 659 | > |
||
| 660 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 661 | tuple(_Tuple&& __t) _NOEXCEPT_((is_nothrow_constructible<base, _Tuple>::value)) |
||
| 662 | : base_(_VSTD::forward<_Tuple>(__t)) {}
|
||
| 663 | |||
| 664 | template <class _Tuple, |
||
| 665 | typename enable_if |
||
| 666 | < |
||
| 667 | __tuple_constructible<_Tuple, tuple>::value && |
||
| 668 | !__tuple_convertible<_Tuple, tuple>::value, |
||
| 669 | bool |
||
| 670 | >::type = false |
||
| 671 | > |
||
| 672 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 673 | explicit |
||
| 674 | tuple(_Tuple&& __t) _NOEXCEPT_((is_nothrow_constructible<base, _Tuple>::value)) |
||
| 675 | : base_(_VSTD::forward<_Tuple>(__t)) {}
|
||
| 676 | |||
| 677 | template <class _Alloc, class _Tuple, |
||
| 678 | class = typename enable_if |
||
| 679 | < |
||
| 680 | __tuple_convertible<_Tuple, tuple>::value |
||
| 681 | >::type |
||
| 682 | > |
||
| 683 | _LIBCPP_INLINE_VISIBILITY |
||
| 684 | tuple(allocator_arg_t, const _Alloc& __a, _Tuple&& __t) |
||
| 685 | : base_(allocator_arg_t(), __a, _VSTD::forward<_Tuple>(__t)) {}
|
||
| 686 | |||
| 687 | template <class _Tuple, |
||
| 688 | class = typename enable_if |
||
| 689 | < |
||
| 690 | __tuple_assignable<_Tuple, tuple>::value |
||
| 691 | >::type |
||
| 692 | > |
||
| 693 | _LIBCPP_INLINE_VISIBILITY |
||
| 694 | tuple& |
||
| 695 | operator=(_Tuple&& __t) _NOEXCEPT_((is_nothrow_assignable<base&, _Tuple>::value)) |
||
| 696 | {
|
||
| 697 | base_.operator=(_VSTD::forward<_Tuple>(__t)); |
||
| 698 | return *this; |
||
| 699 | } |
||
| 700 | |||
| 701 | _LIBCPP_INLINE_VISIBILITY |
||
| 702 | void swap(tuple& __t) _NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) |
||
| 703 | {base_.swap(__t.base_);}
|
||
| 704 | }; |
||
| 705 | |||
| 706 | template <> |
||
| 707 | class _LIBCPP_TYPE_VIS_ONLY tuple<> |
||
| 708 | {
|
||
| 709 | public: |
||
| 710 | _LIBCPP_INLINE_VISIBILITY |
||
| 711 | _LIBCPP_CONSTEXPR tuple() _NOEXCEPT {}
|
||
| 712 | template <class _Alloc> |
||
| 713 | _LIBCPP_INLINE_VISIBILITY |
||
| 714 | tuple(allocator_arg_t, const _Alloc&) _NOEXCEPT {}
|
||
| 715 | template <class _Alloc> |
||
| 716 | _LIBCPP_INLINE_VISIBILITY |
||
| 717 | tuple(allocator_arg_t, const _Alloc&, const tuple&) _NOEXCEPT {}
|
||
| 718 | template <class _Up> |
||
| 719 | _LIBCPP_INLINE_VISIBILITY |
||
| 720 | tuple(array<_Up, 0>) _NOEXCEPT {}
|
||
| 721 | template <class _Alloc, class _Up> |
||
| 722 | _LIBCPP_INLINE_VISIBILITY |
||
| 723 | tuple(allocator_arg_t, const _Alloc&, array<_Up, 0>) _NOEXCEPT {}
|
||
| 724 | _LIBCPP_INLINE_VISIBILITY |
||
| 725 | void swap(tuple&) _NOEXCEPT {}
|
||
| 726 | }; |
||
| 727 | |||
| 728 | template <class ..._Tp> |
||
| 729 | inline _LIBCPP_INLINE_VISIBILITY |
||
| 730 | typename enable_if |
||
| 731 | < |
||
| 732 | __all<__is_swappable<_Tp>::value...>::value, |
||
| 733 | void |
||
| 734 | >::type |
||
| 735 | swap(tuple<_Tp...>& __t, tuple<_Tp...>& __u) |
||
| 736 | _NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) |
||
| 737 | {__t.swap(__u);}
|
||
| 738 | |||
| 739 | // get |
||
| 740 | |||
| 741 | template <size_t _Ip, class ..._Tp> |
||
| 742 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 743 | typename tuple_element<_Ip, tuple<_Tp...> >::type& |
||
| 744 | get(tuple<_Tp...>& __t) _NOEXCEPT |
||
| 745 | {
|
||
| 746 | typedef typename tuple_element<_Ip, tuple<_Tp...> >::type type; |
||
| 747 | return static_cast<__tuple_leaf<_Ip, type>&>(__t.base_).get(); |
||
| 748 | } |
||
| 749 | |||
| 750 | template <size_t _Ip, class ..._Tp> |
||
| 751 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 752 | const typename tuple_element<_Ip, tuple<_Tp...> >::type& |
||
| 753 | get(const tuple<_Tp...>& __t) _NOEXCEPT |
||
| 754 | {
|
||
| 755 | typedef typename tuple_element<_Ip, tuple<_Tp...> >::type type; |
||
| 756 | return static_cast<const __tuple_leaf<_Ip, type>&>(__t.base_).get(); |
||
| 757 | } |
||
| 758 | |||
| 759 | template <size_t _Ip, class ..._Tp> |
||
| 760 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 761 | typename tuple_element<_Ip, tuple<_Tp...> >::type&& |
||
| 762 | get(tuple<_Tp...>&& __t) _NOEXCEPT |
||
| 763 | {
|
||
| 764 | typedef typename tuple_element<_Ip, tuple<_Tp...> >::type type; |
||
| 765 | return static_cast<type&&>( |
||
| 766 | static_cast<__tuple_leaf<_Ip, type>&&>(__t.base_).get()); |
||
| 767 | } |
||
| 768 | |||
| 769 | #if _LIBCPP_STD_VER > 11 |
||
| 770 | // get by type |
||
| 771 | template <typename _T1, size_t _Idx, typename... _Args> |
||
| 772 | struct __find_exactly_one_t_helper; |
||
| 773 | |||
| 774 | // -- find exactly one |
||
| 775 | template <typename _T1, size_t _Idx, typename... _Args> |
||
| 776 | struct __find_exactly_one_t_checker {
|
||
| 777 | static constexpr size_t value = _Idx; |
||
| 778 | // Check the rest of the list to make sure there's only one |
||
| 779 | static_assert ( __find_exactly_one_t_helper<_T1, 0, _Args...>::value == -1, "type can only occur once in type list" ); |
||
| 780 | }; |
||
| 781 | |||
| 782 | |||
| 783 | template <typename _T1, size_t _Idx> |
||
| 784 | struct __find_exactly_one_t_helper <_T1, _Idx> {
|
||
| 785 | static constexpr size_t value = -1; |
||
| 786 | }; |
||
| 787 | |||
| 788 | template <typename _T1, size_t _Idx, typename _Head, typename... _Args> |
||
| 789 | struct __find_exactly_one_t_helper <_T1, _Idx, _Head, _Args...> {
|
||
| 790 | static constexpr size_t value = |
||
| 791 | std::conditional< |
||
| 792 | std::is_same<_T1, _Head>::value, |
||
| 793 | __find_exactly_one_t_checker<_T1, _Idx, _Args...>, |
||
| 794 | __find_exactly_one_t_helper <_T1, _Idx+1, _Args...> |
||
| 795 | >::type::value; |
||
| 796 | }; |
||
| 797 | |||
| 798 | template <typename _T1, typename... _Args> |
||
| 799 | struct __find_exactly_one_t {
|
||
| 800 | static constexpr size_t value = __find_exactly_one_t_helper<_T1, 0, _Args...>::value; |
||
| 801 | static_assert ( value != -1, "type not found in type list" ); |
||
| 802 | }; |
||
| 803 | |||
| 804 | template <class _T1, class... _Args> |
||
| 805 | inline _LIBCPP_INLINE_VISIBILITY |
||
| 806 | constexpr _T1& get(tuple<_Args...>& __tup) noexcept |
||
| 807 | {
|
||
| 808 | return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(__tup); |
||
| 809 | } |
||
| 810 | |||
| 811 | template <class _T1, class... _Args> |
||
| 812 | inline _LIBCPP_INLINE_VISIBILITY |
||
| 813 | constexpr _T1 const& get(tuple<_Args...> const& __tup) noexcept |
||
| 814 | {
|
||
| 815 | return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(__tup); |
||
| 816 | } |
||
| 817 | |||
| 818 | template <class _T1, class... _Args> |
||
| 819 | inline _LIBCPP_INLINE_VISIBILITY |
||
| 820 | constexpr _T1&& get(tuple<_Args...>&& __tup) noexcept |
||
| 821 | {
|
||
| 822 | return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(_VSTD::move(__tup)); |
||
| 823 | } |
||
| 824 | |||
| 825 | #endif |
||
| 826 | |||
| 827 | // tie |
||
| 828 | |||
| 829 | template <class ..._Tp> |
||
| 830 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 831 | tuple<_Tp&...> |
||
| 832 | tie(_Tp&... __t) _NOEXCEPT |
||
| 833 | {
|
||
| 834 | return tuple<_Tp&...>(__t...); |
||
| 835 | } |
||
| 836 | |||
| 837 | template <class _Up> |
||
| 838 | struct __ignore_t |
||
| 839 | {
|
||
| 840 | template <class _Tp> |
||
| 841 | _LIBCPP_INLINE_VISIBILITY |
||
| 842 | const __ignore_t& operator=(_Tp&&) const {return *this;}
|
||
| 843 | }; |
||
| 844 | |||
| 845 | namespace { const __ignore_t<unsigned char> ignore = __ignore_t<unsigned char>(); }
|
||
| 846 | |||
| 847 | template <class _Tp> |
||
| 848 | struct __make_tuple_return_impl |
||
| 849 | {
|
||
| 850 | typedef _Tp type; |
||
| 851 | }; |
||
| 852 | |||
| 853 | template <class _Tp> |
||
| 854 | struct __make_tuple_return_impl<reference_wrapper<_Tp> > |
||
| 855 | {
|
||
| 856 | typedef _Tp& type; |
||
| 857 | }; |
||
| 858 | |||
| 859 | template <class _Tp> |
||
| 860 | struct __make_tuple_return |
||
| 861 | {
|
||
| 862 | typedef typename __make_tuple_return_impl<typename decay<_Tp>::type>::type type; |
||
| 863 | }; |
||
| 864 | |||
| 865 | template <class... _Tp> |
||
| 866 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 867 | tuple<typename __make_tuple_return<_Tp>::type...> |
||
| 868 | make_tuple(_Tp&&... __t) |
||
| 869 | {
|
||
| 870 | return tuple<typename __make_tuple_return<_Tp>::type...>(_VSTD::forward<_Tp>(__t)...); |
||
| 871 | } |
||
| 872 | |||
| 873 | template <class... _Tp> |
||
| 874 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 875 | tuple<_Tp&&...> |
||
| 876 | forward_as_tuple(_Tp&&... __t) _NOEXCEPT |
||
| 877 | {
|
||
| 878 | return tuple<_Tp&&...>(_VSTD::forward<_Tp>(__t)...); |
||
| 879 | } |
||
| 880 | |||
| 881 | template <size_t _Ip> |
||
| 882 | struct __tuple_equal |
||
| 883 | {
|
||
| 884 | template <class _Tp, class _Up> |
||
| 885 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 886 | bool operator()(const _Tp& __x, const _Up& __y) |
||
| 887 | {
|
||
| 888 | return __tuple_equal<_Ip - 1>()(__x, __y) && _VSTD::get<_Ip-1>(__x) == _VSTD::get<_Ip-1>(__y); |
||
| 889 | } |
||
| 890 | }; |
||
| 891 | |||
| 892 | template <> |
||
| 893 | struct __tuple_equal<0> |
||
| 894 | {
|
||
| 895 | template <class _Tp, class _Up> |
||
| 896 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 897 | bool operator()(const _Tp&, const _Up&) |
||
| 898 | {
|
||
| 899 | return true; |
||
| 900 | } |
||
| 901 | }; |
||
| 902 | |||
| 903 | template <class ..._Tp, class ..._Up> |
||
| 904 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 905 | bool |
||
| 906 | operator==(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) |
||
| 907 | {
|
||
| 908 | return __tuple_equal<sizeof...(_Tp)>()(__x, __y); |
||
| 909 | } |
||
| 910 | |||
| 911 | template <class ..._Tp, class ..._Up> |
||
| 912 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 913 | bool |
||
| 914 | operator!=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) |
||
| 915 | {
|
||
| 916 | return !(__x == __y); |
||
| 917 | } |
||
| 918 | |||
| 919 | template <size_t _Ip> |
||
| 920 | struct __tuple_less |
||
| 921 | {
|
||
| 922 | template <class _Tp, class _Up> |
||
| 923 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 924 | bool operator()(const _Tp& __x, const _Up& __y) |
||
| 925 | {
|
||
| 926 | const size_t __idx = tuple_size<_Tp>::value - _Ip; |
||
| 927 | if (_VSTD::get<__idx>(__x) < _VSTD::get<__idx>(__y)) |
||
| 928 | return true; |
||
| 929 | if (_VSTD::get<__idx>(__y) < _VSTD::get<__idx>(__x)) |
||
| 930 | return false; |
||
| 931 | return __tuple_less<_Ip-1>()(__x, __y); |
||
| 932 | } |
||
| 933 | }; |
||
| 934 | |||
| 935 | template <> |
||
| 936 | struct __tuple_less<0> |
||
| 937 | {
|
||
| 938 | template <class _Tp, class _Up> |
||
| 939 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 940 | bool operator()(const _Tp&, const _Up&) |
||
| 941 | {
|
||
| 942 | return false; |
||
| 943 | } |
||
| 944 | }; |
||
| 945 | |||
| 946 | template <class ..._Tp, class ..._Up> |
||
| 947 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 948 | bool |
||
| 949 | operator<(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) |
||
| 950 | {
|
||
| 951 | return __tuple_less<sizeof...(_Tp)>()(__x, __y); |
||
| 952 | } |
||
| 953 | |||
| 954 | template <class ..._Tp, class ..._Up> |
||
| 955 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 956 | bool |
||
| 957 | operator>(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) |
||
| 958 | {
|
||
| 959 | return __y < __x; |
||
| 960 | } |
||
| 961 | |||
| 962 | template <class ..._Tp, class ..._Up> |
||
| 963 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 964 | bool |
||
| 965 | operator>=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) |
||
| 966 | {
|
||
| 967 | return !(__x < __y); |
||
| 968 | } |
||
| 969 | |||
| 970 | template <class ..._Tp, class ..._Up> |
||
| 971 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 972 | bool |
||
| 973 | operator<=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) |
||
| 974 | {
|
||
| 975 | return !(__y < __x); |
||
| 976 | } |
||
| 977 | |||
| 978 | // tuple_cat |
||
| 979 | |||
| 980 | template <class _Tp, class _Up> struct __tuple_cat_type; |
||
| 981 | |||
| 982 | template <class ..._Ttypes, class ..._Utypes> |
||
| 983 | struct __tuple_cat_type<tuple<_Ttypes...>, __tuple_types<_Utypes...> > |
||
| 984 | {
|
||
| 985 | typedef tuple<_Ttypes..., _Utypes...> type; |
||
| 986 | }; |
||
| 987 | |||
| 988 | template <class _ResultTuple, bool _Is_Tuple0TupleLike, class ..._Tuples> |
||
| 989 | struct __tuple_cat_return_1 |
||
| 990 | {
|
||
| 991 | }; |
||
| 992 | |||
| 993 | template <class ..._Types, class _Tuple0> |
||
| 994 | struct __tuple_cat_return_1<tuple<_Types...>, true, _Tuple0> |
||
| 995 | {
|
||
| 996 | typedef typename __tuple_cat_type<tuple<_Types...>, |
||
| 997 | typename __make_tuple_types<typename remove_reference<_Tuple0>::type>::type>::type |
||
| 998 | type; |
||
| 999 | }; |
||
| 1000 | |||
| 1001 | template <class ..._Types, class _Tuple0, class _Tuple1, class ..._Tuples> |
||
| 1002 | struct __tuple_cat_return_1<tuple<_Types...>, true, _Tuple0, _Tuple1, _Tuples...> |
||
| 1003 | : public __tuple_cat_return_1< |
||
| 1004 | typename __tuple_cat_type< |
||
| 1005 | tuple<_Types...>, |
||
| 1006 | typename __make_tuple_types<typename remove_reference<_Tuple0>::type>::type |
||
| 1007 | >::type, |
||
| 1008 | __tuple_like<typename remove_reference<_Tuple1>::type>::value, |
||
| 1009 | _Tuple1, _Tuples...> |
||
| 1010 | {
|
||
| 1011 | }; |
||
| 1012 | |||
| 1013 | template <class ..._Tuples> struct __tuple_cat_return; |
||
| 1014 | |||
| 1015 | template <class _Tuple0, class ..._Tuples> |
||
| 1016 | struct __tuple_cat_return<_Tuple0, _Tuples...> |
||
| 1017 | : public __tuple_cat_return_1<tuple<>, |
||
| 1018 | __tuple_like<typename remove_reference<_Tuple0>::type>::value, _Tuple0, |
||
| 1019 | _Tuples...> |
||
| 1020 | {
|
||
| 1021 | }; |
||
| 1022 | |||
| 1023 | template <> |
||
| 1024 | struct __tuple_cat_return<> |
||
| 1025 | {
|
||
| 1026 | typedef tuple<> type; |
||
| 1027 | }; |
||
| 1028 | |||
| 1029 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 1030 | tuple<> |
||
| 1031 | tuple_cat() |
||
| 1032 | {
|
||
| 1033 | return tuple<>(); |
||
| 1034 | } |
||
| 1035 | |||
| 1036 | template <class _Rp, class _Indices, class _Tuple0, class ..._Tuples> |
||
| 1037 | struct __tuple_cat_return_ref_imp; |
||
| 1038 | |||
| 1039 | template <class ..._Types, size_t ..._I0, class _Tuple0> |
||
| 1040 | struct __tuple_cat_return_ref_imp<tuple<_Types...>, __tuple_indices<_I0...>, _Tuple0> |
||
| 1041 | {
|
||
| 1042 | typedef typename remove_reference<_Tuple0>::type _T0; |
||
| 1043 | typedef tuple<_Types..., typename __apply_cv<_Tuple0, |
||
| 1044 | typename tuple_element<_I0, _T0>::type>::type&&...> type; |
||
| 1045 | }; |
||
| 1046 | |||
| 1047 | template <class ..._Types, size_t ..._I0, class _Tuple0, class _Tuple1, class ..._Tuples> |
||
| 1048 | struct __tuple_cat_return_ref_imp<tuple<_Types...>, __tuple_indices<_I0...>, |
||
| 1049 | _Tuple0, _Tuple1, _Tuples...> |
||
| 1050 | : public __tuple_cat_return_ref_imp< |
||
| 1051 | tuple<_Types..., typename __apply_cv<_Tuple0, |
||
| 1052 | typename tuple_element<_I0, |
||
| 1053 | typename remove_reference<_Tuple0>::type>::type>::type&&...>, |
||
| 1054 | typename __make_tuple_indices<tuple_size<typename |
||
| 1055 | remove_reference<_Tuple1>::type>::value>::type, |
||
| 1056 | _Tuple1, _Tuples...> |
||
| 1057 | {
|
||
| 1058 | }; |
||
| 1059 | |||
| 1060 | template <class _Tuple0, class ..._Tuples> |
||
| 1061 | struct __tuple_cat_return_ref |
||
| 1062 | : public __tuple_cat_return_ref_imp<tuple<>, |
||
| 1063 | typename __make_tuple_indices< |
||
| 1064 | tuple_size<typename remove_reference<_Tuple0>::type>::value |
||
| 1065 | >::type, _Tuple0, _Tuples...> |
||
| 1066 | {
|
||
| 1067 | }; |
||
| 1068 | |||
| 1069 | template <class _Types, class _I0, class _J0> |
||
| 1070 | struct __tuple_cat; |
||
| 1071 | |||
| 1072 | template <class ..._Types, size_t ..._I0, size_t ..._J0> |
||
| 1073 | struct __tuple_cat<tuple<_Types...>, __tuple_indices<_I0...>, __tuple_indices<_J0...> > |
||
| 1074 | {
|
||
| 1075 | template <class _Tuple0> |
||
| 1076 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 1077 | typename __tuple_cat_return_ref<tuple<_Types...>&&, _Tuple0&&>::type |
||
| 1078 | operator()(tuple<_Types...> __t, _Tuple0&& __t0) |
||
| 1079 | {
|
||
| 1080 | return forward_as_tuple(_VSTD::forward<_Types>(_VSTD::get<_I0>(__t))..., |
||
| 1081 | _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))...); |
||
| 1082 | } |
||
| 1083 | |||
| 1084 | template <class _Tuple0, class _Tuple1, class ..._Tuples> |
||
| 1085 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 1086 | typename __tuple_cat_return_ref<tuple<_Types...>&&, _Tuple0&&, _Tuple1&&, _Tuples&&...>::type |
||
| 1087 | operator()(tuple<_Types...> __t, _Tuple0&& __t0, _Tuple1&& __t1, _Tuples&& ...__tpls) |
||
| 1088 | {
|
||
| 1089 | typedef typename remove_reference<_Tuple0>::type _T0; |
||
| 1090 | typedef typename remove_reference<_Tuple1>::type _T1; |
||
| 1091 | return __tuple_cat< |
||
| 1092 | tuple<_Types..., typename __apply_cv<_Tuple0, typename tuple_element<_J0, _T0>::type>::type&&...>, |
||
| 1093 | typename __make_tuple_indices<sizeof ...(_Types) + tuple_size<_T0>::value>::type, |
||
| 1094 | typename __make_tuple_indices<tuple_size<_T1>::value>::type>() |
||
| 1095 | (forward_as_tuple( |
||
| 1096 | _VSTD::forward<_Types>(_VSTD::get<_I0>(__t))..., |
||
| 1097 | _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))... |
||
| 1098 | ), |
||
| 1099 | _VSTD::forward<_Tuple1>(__t1), |
||
| 1100 | _VSTD::forward<_Tuples>(__tpls)...); |
||
| 1101 | } |
||
| 1102 | }; |
||
| 1103 | |||
| 1104 | template <class _Tuple0, class... _Tuples> |
||
| 1105 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
||
| 1106 | typename __tuple_cat_return<_Tuple0, _Tuples...>::type |
||
| 1107 | tuple_cat(_Tuple0&& __t0, _Tuples&&... __tpls) |
||
| 1108 | {
|
||
| 1109 | typedef typename remove_reference<_Tuple0>::type _T0; |
||
| 1110 | return __tuple_cat<tuple<>, __tuple_indices<>, |
||
| 1111 | typename __make_tuple_indices<tuple_size<_T0>::value>::type>() |
||
| 1112 | (tuple<>(), _VSTD::forward<_Tuple0>(__t0), |
||
| 1113 | _VSTD::forward<_Tuples>(__tpls)...); |
||
| 1114 | } |
||
| 1115 | |||
| 1116 | template <class ..._Tp, class _Alloc> |
||
| 1117 | struct _LIBCPP_TYPE_VIS_ONLY uses_allocator<tuple<_Tp...>, _Alloc> |
||
| 1118 | : true_type {};
|
||
| 1119 | |||
| 1120 | template <class _T1, class _T2> |
||
| 1121 | template <class... _Args1, class... _Args2, size_t ..._I1, size_t ..._I2> |
||
| 1122 | inline _LIBCPP_INLINE_VISIBILITY |
||
| 1123 | pair<_T1, _T2>::pair(piecewise_construct_t, |
||
| 1124 | tuple<_Args1...>& __first_args, tuple<_Args2...>& __second_args, |
||
| 1125 | __tuple_indices<_I1...>, __tuple_indices<_I2...>) |
||
| 1126 | : first(_VSTD::forward<_Args1>(_VSTD::get<_I1>( __first_args))...), |
||
| 1127 | second(_VSTD::forward<_Args2>(_VSTD::get<_I2>(__second_args))...) |
||
| 1128 | {
|
||
| 1129 | } |
||
| 1130 | |||
| 1131 | #endif // _LIBCPP_HAS_NO_VARIADICS |
||
| 1132 | |||
| 1133 | _LIBCPP_END_NAMESPACE_STD |
||
| 1134 | |||
| 1135 | #endif // _LIBCPP_TUPLE |