Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1 | // -*- C++ -*- |
| 2 | //===-------------------------- utility -----------------------------------===// |
| 3 | // |
Howard Hinnant | f5256e1 | 2010-05-11 21:36:01 +0000 | [diff] [blame] | 4 | // The LLVM Compiler Infrastructure |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 5 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 6 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 7 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 8 | // |
| 9 | //===----------------------------------------------------------------------===// |
| 10 | |
| 11 | #ifndef _LIBCPP_UTILITY |
| 12 | #define _LIBCPP_UTILITY |
| 13 | |
| 14 | /* |
| 15 | utility synopsis |
| 16 | |
| 17 | namespace std |
| 18 | { |
| 19 | |
| 20 | template <class T> |
| 21 | void |
| 22 | swap(T& a, T& b); |
| 23 | |
| 24 | namespace rel_ops |
| 25 | { |
| 26 | template<class T> bool operator!=(const T&, const T&); |
| 27 | template<class T> bool operator> (const T&, const T&); |
| 28 | template<class T> bool operator<=(const T&, const T&); |
| 29 | template<class T> bool operator>=(const T&, const T&); |
| 30 | } |
| 31 | |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 32 | template<class T> |
| 33 | void |
| 34 | swap(T& a, T& b) noexcept(is_nothrow_move_constructible<T>::value && |
| 35 | is_nothrow_move_assignable<T>::value); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 36 | |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 37 | template <class T, size_t N> |
| 38 | void |
| 39 | swap(T (&a)[N], T (&b)[N]) noexcept(noexcept(swap(*a, *b))); |
| 40 | |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 41 | template <class T> T&& forward(typename remove_reference<T>::type& t) noexcept; // constexpr in C++14 |
| 42 | template <class T> T&& forward(typename remove_reference<T>::type&& t) noexcept; // constexpr in C++14 |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 43 | |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 44 | template <class T> typename remove_reference<T>::type&& move(T&&) noexcept; // constexpr in C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 45 | |
| 46 | template <class T> |
| 47 | typename conditional |
| 48 | < |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 49 | !is_nothrow_move_constructible<T>::value && is_copy_constructible<T>::value, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 50 | const T&, |
| 51 | T&& |
| 52 | >::type |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 53 | move_if_noexcept(T& x) noexcept; // constexpr in C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 54 | |
| 55 | template <class T> typename add_rvalue_reference<T>::type declval() noexcept; |
| 56 | |
| 57 | template <class T1, class T2> |
| 58 | struct pair |
| 59 | { |
| 60 | typedef T1 first_type; |
| 61 | typedef T2 second_type; |
| 62 | |
| 63 | T1 first; |
| 64 | T2 second; |
| 65 | |
| 66 | pair(const pair&) = default; |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 67 | pair(pair&&) = default; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 68 | constexpr pair(); |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 69 | pair(const T1& x, const T2& y); // constexpr in C++14 |
| 70 | template <class U, class V> pair(U&& x, V&& y); // constexpr in C++14 |
| 71 | template <class U, class V> pair(const pair<U, V>& p); // constexpr in C++14 |
| 72 | template <class U, class V> pair(pair<U, V>&& p); // constexpr in C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 73 | template <class... Args1, class... Args2> |
| 74 | pair(piecewise_construct_t, tuple<Args1...> first_args, |
| 75 | tuple<Args2...> second_args); |
| 76 | |
| 77 | template <class U, class V> pair& operator=(const pair<U, V>& p); |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 78 | pair& operator=(pair&& p) noexcept(is_nothrow_move_assignable<T1>::value && |
| 79 | is_nothrow_move_assignable<T2>::value); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 80 | template <class U, class V> pair& operator=(pair<U, V>&& p); |
| 81 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 82 | void swap(pair& p) noexcept(noexcept(swap(first, p.first)) && |
| 83 | noexcept(swap(second, p.second))); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 84 | }; |
| 85 | |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 86 | template <class T1, class T2> bool operator==(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14 |
| 87 | template <class T1, class T2> bool operator!=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14 |
| 88 | template <class T1, class T2> bool operator< (const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14 |
| 89 | template <class T1, class T2> bool operator> (const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14 |
| 90 | template <class T1, class T2> bool operator>=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14 |
| 91 | template <class T1, class T2> bool operator<=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 92 | |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 93 | template <class T1, class T2> pair<V1, V2> make_pair(T1&&, T2&&); // constexpr in C++14 |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 94 | template <class T1, class T2> |
| 95 | void |
| 96 | swap(pair<T1, T2>& x, pair<T1, T2>& y) noexcept(noexcept(x.swap(y))); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 97 | |
| 98 | struct piecewise_construct_t { }; |
| 99 | constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); |
| 100 | |
| 101 | template <class T> class tuple_size; |
| 102 | template <size_t I, class T> class tuple_element; |
| 103 | |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 104 | template <class T1, class T2> struct tuple_size<pair<T1, T2> >; |
| 105 | template <class T1, class T2> struct tuple_element<0, pair<T1, T2> >; |
| 106 | template <class T1, class T2> struct tuple_element<1, pair<T1, T2> >; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 107 | |
| 108 | template<size_t I, class T1, class T2> |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 109 | typename tuple_element<I, pair<T1, T2> >::type& |
| 110 | get(pair<T1, T2>&) noexcept; // constexpr in C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 111 | |
| 112 | template<size_t I, class T1, class T2> |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 113 | const typename const tuple_element<I, pair<T1, T2> >::type& |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 114 | get(const pair<T1, T2>&) noexcept; // constexpr in C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 115 | |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 116 | template<size_t I, class T1, class T2> |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 117 | typename tuple_element<I, pair<T1, T2> >::type&& |
| 118 | get(pair<T1, T2>&&) noexcept; // constexpr in C++14 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 119 | |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 120 | template<class T1, class T2> |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 121 | constexpr T1& get(pair<T1, T2>&) noexcept; // C++14 |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 122 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 123 | template<size_t I, class T1, class T2> |
| 124 | constexpr T1 const& get(pair<T1, T2> const &) noexcept; // C++14 |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 125 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 126 | template<size_t I, class T1, class T2> |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 127 | constexpr T1&& get(pair<T1, T2>&&) noexcept; // C++14 |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 128 | |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 129 | // C++14 |
| 130 | |
| 131 | template<class T, T... I> |
| 132 | struct integer_sequence |
| 133 | { |
| 134 | typedef T value_type; |
| 135 | |
| 136 | static constexpr size_t size() noexcept; |
| 137 | }; |
| 138 | |
| 139 | template<size_t... I> |
| 140 | using index_sequence = integer_sequence<size_t, I...>; |
| 141 | |
| 142 | template<class T, T N> |
| 143 | using make_integer_sequence = integer_sequence<T, 0, 1, ..., N-1>; |
| 144 | template<size_t N> |
| 145 | using make_index_sequence = make_integer_sequence<size_t, N>; |
| 146 | |
| 147 | template<class... T> |
| 148 | using index_sequence_for = make_index_sequence<sizeof...(T)>; |
| 149 | |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 150 | template<class T, class U=T> |
| 151 | T exchange(T& obj, U&& new_value); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 152 | } // std |
| 153 | |
| 154 | */ |
| 155 | |
| 156 | #include <__config> |
| 157 | #include <__tuple> |
| 158 | #include <type_traits> |
| 159 | |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 160 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 161 | #pragma GCC system_header |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 162 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 163 | |
| 164 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 165 | |
| 166 | namespace rel_ops |
| 167 | { |
| 168 | |
| 169 | template<class _Tp> |
| 170 | inline _LIBCPP_INLINE_VISIBILITY |
| 171 | bool |
| 172 | operator!=(const _Tp& __x, const _Tp& __y) |
| 173 | { |
| 174 | return !(__x == __y); |
| 175 | } |
| 176 | |
| 177 | template<class _Tp> |
| 178 | inline _LIBCPP_INLINE_VISIBILITY |
| 179 | bool |
| 180 | operator> (const _Tp& __x, const _Tp& __y) |
| 181 | { |
| 182 | return __y < __x; |
| 183 | } |
| 184 | |
| 185 | template<class _Tp> |
| 186 | inline _LIBCPP_INLINE_VISIBILITY |
| 187 | bool |
| 188 | operator<=(const _Tp& __x, const _Tp& __y) |
| 189 | { |
| 190 | return !(__y < __x); |
| 191 | } |
| 192 | |
| 193 | template<class _Tp> |
| 194 | inline _LIBCPP_INLINE_VISIBILITY |
| 195 | bool |
| 196 | operator>=(const _Tp& __x, const _Tp& __y) |
| 197 | { |
| 198 | return !(__x < __y); |
| 199 | } |
| 200 | |
| 201 | } // rel_ops |
| 202 | |
| 203 | // swap_ranges |
| 204 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 205 | // forward |
| 206 | template<class _Tp, size_t _Np> |
| 207 | inline _LIBCPP_INLINE_VISIBILITY |
| 208 | void swap(_Tp (&__a)[_Np], _Tp (&__b)[_Np]) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value); |
Marshall Clow | fd8ed7f | 2015-01-06 19:20:49 +0000 | [diff] [blame] | 209 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 210 | template <class _ForwardIterator1, class _ForwardIterator2> |
| 211 | inline _LIBCPP_INLINE_VISIBILITY |
| 212 | _ForwardIterator2 |
| 213 | swap_ranges(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2) |
| 214 | { |
Eric Fiselier | b991975 | 2014-10-27 19:28:20 +0000 | [diff] [blame] | 215 | for(; __first1 != __last1; ++__first1, (void) ++__first2) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 216 | swap(*__first1, *__first2); |
| 217 | return __first2; |
| 218 | } |
| 219 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 220 | template<class _Tp, size_t _Np> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 221 | inline _LIBCPP_INLINE_VISIBILITY |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 222 | void |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 223 | swap(_Tp (&__a)[_Np], _Tp (&__b)[_Np]) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 224 | { |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 225 | _VSTD::swap_ranges(__a, __a + _Np, __b); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | template <class _Tp> |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 229 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 230 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 231 | typename conditional |
| 232 | < |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 233 | !is_nothrow_move_constructible<_Tp>::value && is_copy_constructible<_Tp>::value, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 234 | const _Tp&, |
| 235 | _Tp&& |
| 236 | >::type |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 237 | #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 238 | const _Tp& |
| 239 | #endif |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 240 | move_if_noexcept(_Tp& __x) _NOEXCEPT |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 241 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 242 | return _VSTD::move(__x); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 243 | } |
| 244 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 245 | struct _LIBCPP_TYPE_VIS_ONLY piecewise_construct_t { }; |
Howard Hinnant | 616e92d | 2012-04-03 23:45:46 +0000 | [diff] [blame] | 246 | #if defined(_LIBCPP_HAS_NO_CONSTEXPR) || defined(_LIBCPP_BUILDING_UTILITY) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 247 | extern const piecewise_construct_t piecewise_construct;// = piecewise_construct_t(); |
Howard Hinnant | 2a5349b | 2012-04-03 21:09:48 +0000 | [diff] [blame] | 248 | #else |
| 249 | constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); |
| 250 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 251 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 252 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 253 | struct _LIBCPP_TYPE_VIS_ONLY pair |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 254 | { |
| 255 | typedef _T1 first_type; |
| 256 | typedef _T2 second_type; |
| 257 | |
| 258 | _T1 first; |
| 259 | _T2 second; |
| 260 | |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 261 | // pair(const pair&) = default; |
| 262 | // pair(pair&&) = default; |
| 263 | |
Howard Hinnant | 2a5349b | 2012-04-03 21:09:48 +0000 | [diff] [blame] | 264 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR pair() : first(), second() {} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 265 | |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 266 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 267 | pair(const _T1& __x, const _T2& __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 268 | : first(__x), second(__y) {} |
| 269 | |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 270 | template<class _U1, class _U2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 271 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | 9c59d38 | 2011-07-27 19:25:28 +0000 | [diff] [blame] | 272 | pair(const pair<_U1, _U2>& __p |
| 273 | #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE |
Howard Hinnant | fe59276 | 2012-06-09 20:01:23 +0000 | [diff] [blame] | 274 | ,typename enable_if<is_convertible<const _U1&, _T1>::value && |
| 275 | is_convertible<const _U2&, _T2>::value>::type* = 0 |
Howard Hinnant | 9c59d38 | 2011-07-27 19:25:28 +0000 | [diff] [blame] | 276 | #endif |
| 277 | ) |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 278 | : first(__p.first), second(__p.second) {} |
| 279 | |
Howard Hinnant | 65173fe | 2013-11-14 22:52:25 +0000 | [diff] [blame] | 280 | #if !defined(_LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS) && _LIBCPP_TRIVIAL_PAIR_COPY_CTOR |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 281 | _LIBCPP_INLINE_VISIBILITY |
| 282 | pair(const pair& __p) = default; |
Howard Hinnant | 65173fe | 2013-11-14 22:52:25 +0000 | [diff] [blame] | 283 | #elif !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) || !_LIBCPP_TRIVIAL_PAIR_COPY_CTOR |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 284 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 285 | pair(const pair& __p) |
| 286 | _NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value && |
| 287 | is_nothrow_copy_constructible<second_type>::value) |
| 288 | : first(__p.first), |
| 289 | second(__p.second) |
| 290 | { |
| 291 | } |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 292 | #endif |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 293 | |
| 294 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 295 | pair& operator=(const pair& __p) |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 296 | _NOEXCEPT_(is_nothrow_copy_assignable<first_type>::value && |
| 297 | is_nothrow_copy_assignable<second_type>::value) |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 298 | { |
| 299 | first = __p.first; |
| 300 | second = __p.second; |
| 301 | return *this; |
| 302 | } |
| 303 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 304 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 305 | |
| 306 | template <class _U1, class _U2, |
Howard Hinnant | fe59276 | 2012-06-09 20:01:23 +0000 | [diff] [blame] | 307 | class = typename enable_if<is_convertible<_U1, first_type>::value && |
| 308 | is_convertible<_U2, second_type>::value>::type> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 309 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 310 | pair(_U1&& __u1, _U2&& __u2) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 311 | : first(_VSTD::forward<_U1>(__u1)), |
| 312 | second(_VSTD::forward<_U2>(__u2)) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 313 | {} |
| 314 | |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 315 | template<class _U1, class _U2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 316 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 317 | pair(pair<_U1, _U2>&& __p, |
Howard Hinnant | fe59276 | 2012-06-09 20:01:23 +0000 | [diff] [blame] | 318 | typename enable_if<is_convertible<_U1, _T1>::value && |
| 319 | is_convertible<_U2, _T2>::value>::type* = 0) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 320 | : first(_VSTD::forward<_U1>(__p.first)), |
| 321 | second(_VSTD::forward<_U2>(__p.second)) {} |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 322 | |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 323 | #ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS |
| 324 | _LIBCPP_INLINE_VISIBILITY |
| 325 | pair(pair&& __p) = default; |
| 326 | #else |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 327 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 328 | pair(pair&& __p) _NOEXCEPT_(is_nothrow_move_constructible<first_type>::value && |
| 329 | is_nothrow_move_constructible<second_type>::value) |
| 330 | : first(_VSTD::forward<first_type>(__p.first)), |
| 331 | second(_VSTD::forward<second_type>(__p.second)) |
| 332 | { |
| 333 | } |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 334 | #endif |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 335 | |
| 336 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 337 | pair& |
| 338 | operator=(pair&& __p) _NOEXCEPT_(is_nothrow_move_assignable<first_type>::value && |
| 339 | is_nothrow_move_assignable<second_type>::value) |
| 340 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 341 | first = _VSTD::forward<first_type>(__p.first); |
| 342 | second = _VSTD::forward<second_type>(__p.second); |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 343 | return *this; |
| 344 | } |
| 345 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 346 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 347 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 348 | template<class _Tuple, |
| 349 | class = typename enable_if<__tuple_convertible<_Tuple, pair>::value>::type> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 350 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 351 | pair(_Tuple&& __p) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 352 | : first(_VSTD::forward<typename tuple_element<0, |
Marshall Clow | ba6dbf4 | 2014-06-24 00:46:19 +0000 | [diff] [blame] | 353 | typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<0>(__p))), |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 354 | second(_VSTD::forward<typename tuple_element<1, |
Marshall Clow | ba6dbf4 | 2014-06-24 00:46:19 +0000 | [diff] [blame] | 355 | typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<1>(__p))) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 356 | {} |
| 357 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 358 | |
Howard Hinnant | 726a76f | 2010-11-16 21:10:23 +0000 | [diff] [blame] | 359 | |
Howard Hinnant | 6cc99fa | 2011-12-19 17:58:44 +0000 | [diff] [blame] | 360 | template <class... _Args1, class... _Args2> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 361 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 362 | pair(piecewise_construct_t __pc, tuple<_Args1...> __first_args, |
| 363 | tuple<_Args2...> __second_args) |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 364 | : pair(__pc, __first_args, __second_args, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 365 | typename __make_tuple_indices<sizeof...(_Args1)>::type(), |
| 366 | typename __make_tuple_indices<sizeof...(_Args2) >::type()) |
| 367 | {} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 368 | |
| 369 | template <class _Tuple, |
| 370 | class = typename enable_if<__tuple_assignable<_Tuple, pair>::value>::type> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 371 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 372 | pair& |
| 373 | operator=(_Tuple&& __p) |
| 374 | { |
| 375 | typedef typename __make_tuple_types<_Tuple>::type _TupleRef; |
| 376 | typedef typename tuple_element<0, _TupleRef>::type _U0; |
| 377 | typedef typename tuple_element<1, _TupleRef>::type _U1; |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 378 | first = _VSTD::forward<_U0>(_VSTD::get<0>(__p)); |
| 379 | second = _VSTD::forward<_U1>(_VSTD::get<1>(__p)); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 380 | return *this; |
| 381 | } |
| 382 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 383 | #endif // _LIBCPP_HAS_NO_VARIADICS |
| 384 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 385 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 386 | _LIBCPP_INLINE_VISIBILITY |
| 387 | void |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 388 | swap(pair& __p) _NOEXCEPT_(__is_nothrow_swappable<first_type>::value && |
| 389 | __is_nothrow_swappable<second_type>::value) |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 390 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 391 | _VSTD::iter_swap(&first, &__p.first); |
| 392 | _VSTD::iter_swap(&second, &__p.second); |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 393 | } |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 394 | private: |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 395 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 396 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 397 | template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2> |
Howard Hinnant | 5f5859c | 2011-01-13 20:05:05 +0000 | [diff] [blame] | 398 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 399 | pair(piecewise_construct_t, |
| 400 | tuple<_Args1...>& __first_args, tuple<_Args2...>& __second_args, |
| 401 | __tuple_indices<_I1...>, __tuple_indices<_I2...>); |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 402 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 403 | }; |
| 404 | |
| 405 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 406 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 407 | bool |
| 408 | operator==(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 409 | { |
| 410 | return __x.first == __y.first && __x.second == __y.second; |
| 411 | } |
| 412 | |
| 413 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 414 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 415 | bool |
| 416 | operator!=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 417 | { |
| 418 | return !(__x == __y); |
| 419 | } |
| 420 | |
| 421 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 422 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 423 | bool |
| 424 | operator< (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 425 | { |
| 426 | return __x.first < __y.first || (!(__y.first < __x.first) && __x.second < __y.second); |
| 427 | } |
| 428 | |
| 429 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 430 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 431 | bool |
| 432 | operator> (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 433 | { |
| 434 | return __y < __x; |
| 435 | } |
| 436 | |
| 437 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 438 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 439 | bool |
| 440 | operator>=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 441 | { |
| 442 | return !(__x < __y); |
| 443 | } |
| 444 | |
| 445 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 446 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 447 | bool |
| 448 | operator<=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 449 | { |
| 450 | return !(__y < __x); |
| 451 | } |
| 452 | |
| 453 | template <class _T1, class _T2> |
| 454 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | aabf287 | 2011-06-01 19:59:32 +0000 | [diff] [blame] | 455 | typename enable_if |
| 456 | < |
| 457 | __is_swappable<_T1>::value && |
| 458 | __is_swappable<_T2>::value, |
| 459 | void |
| 460 | >::type |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 461 | swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y) |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 462 | _NOEXCEPT_((__is_nothrow_swappable<_T1>::value && |
| 463 | __is_nothrow_swappable<_T2>::value)) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 464 | { |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 465 | __x.swap(__y); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 466 | } |
| 467 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 468 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 469 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 470 | template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY reference_wrapper; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 471 | |
| 472 | template <class _Tp> |
Marshall Clow | a71f956 | 2014-01-03 22:55:49 +0000 | [diff] [blame] | 473 | struct __make_pair_return_impl |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 474 | { |
| 475 | typedef _Tp type; |
| 476 | }; |
| 477 | |
| 478 | template <class _Tp> |
Marshall Clow | a71f956 | 2014-01-03 22:55:49 +0000 | [diff] [blame] | 479 | struct __make_pair_return_impl<reference_wrapper<_Tp>> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 480 | { |
| 481 | typedef _Tp& type; |
| 482 | }; |
| 483 | |
| 484 | template <class _Tp> |
| 485 | struct __make_pair_return |
| 486 | { |
Marshall Clow | a71f956 | 2014-01-03 22:55:49 +0000 | [diff] [blame] | 487 | typedef typename __make_pair_return_impl<typename decay<_Tp>::type>::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 488 | }; |
| 489 | |
| 490 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 491 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 492 | pair<typename __make_pair_return<_T1>::type, typename __make_pair_return<_T2>::type> |
| 493 | make_pair(_T1&& __t1, _T2&& __t2) |
| 494 | { |
| 495 | return pair<typename __make_pair_return<_T1>::type, typename __make_pair_return<_T2>::type> |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 496 | (_VSTD::forward<_T1>(__t1), _VSTD::forward<_T2>(__t2)); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 497 | } |
| 498 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 499 | #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 500 | |
| 501 | template <class _T1, class _T2> |
| 502 | inline _LIBCPP_INLINE_VISIBILITY |
| 503 | pair<_T1,_T2> |
| 504 | make_pair(_T1 __x, _T2 __y) |
| 505 | { |
| 506 | return pair<_T1, _T2>(__x, __y); |
| 507 | } |
| 508 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 509 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 510 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 511 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 512 | class _LIBCPP_TYPE_VIS_ONLY tuple_size<pair<_T1, _T2> > |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 513 | : public integral_constant<size_t, 2> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 514 | |
| 515 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 516 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<0, pair<_T1, _T2> > |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 517 | { |
| 518 | public: |
| 519 | typedef _T1 type; |
| 520 | }; |
| 521 | |
| 522 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 523 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<1, pair<_T1, _T2> > |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 524 | { |
| 525 | public: |
| 526 | typedef _T2 type; |
| 527 | }; |
| 528 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 529 | template <size_t _Ip> struct __get_pair; |
| 530 | |
| 531 | template <> |
| 532 | struct __get_pair<0> |
| 533 | { |
| 534 | template <class _T1, class _T2> |
| 535 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 536 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 537 | _T1& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 538 | get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 539 | |
| 540 | template <class _T1, class _T2> |
| 541 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 542 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 543 | const _T1& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 544 | get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 545 | |
| 546 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 547 | |
| 548 | template <class _T1, class _T2> |
| 549 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 550 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 551 | _T1&& |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 552 | get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T1>(__p.first);} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 553 | |
| 554 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 555 | }; |
| 556 | |
| 557 | template <> |
| 558 | struct __get_pair<1> |
| 559 | { |
| 560 | template <class _T1, class _T2> |
| 561 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 562 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 563 | _T2& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 564 | get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 565 | |
| 566 | template <class _T1, class _T2> |
| 567 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 568 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 569 | const _T2& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 570 | get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 571 | |
| 572 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 573 | |
| 574 | template <class _T1, class _T2> |
| 575 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 576 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 577 | _T2&& |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 578 | get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T2>(__p.second);} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 579 | |
| 580 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 581 | }; |
| 582 | |
| 583 | template <size_t _Ip, class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 584 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 585 | typename tuple_element<_Ip, pair<_T1, _T2> >::type& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 586 | get(pair<_T1, _T2>& __p) _NOEXCEPT |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 587 | { |
| 588 | return __get_pair<_Ip>::get(__p); |
| 589 | } |
| 590 | |
| 591 | template <size_t _Ip, class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 592 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 593 | const typename tuple_element<_Ip, pair<_T1, _T2> >::type& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 594 | get(const pair<_T1, _T2>& __p) _NOEXCEPT |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 595 | { |
| 596 | return __get_pair<_Ip>::get(__p); |
| 597 | } |
| 598 | |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 599 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 600 | |
| 601 | template <size_t _Ip, class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 602 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 603 | typename tuple_element<_Ip, pair<_T1, _T2> >::type&& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 604 | get(pair<_T1, _T2>&& __p) _NOEXCEPT |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 605 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 606 | return __get_pair<_Ip>::get(_VSTD::move(__p)); |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 610 | |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 611 | #if _LIBCPP_STD_VER > 11 |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 612 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 613 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 614 | constexpr _T1 & get(pair<_T1, _T2>& __p) _NOEXCEPT |
| 615 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 616 | return __get_pair<0>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 617 | } |
| 618 | |
| 619 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 620 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 621 | constexpr _T1 const & get(pair<_T1, _T2> const& __p) _NOEXCEPT |
| 622 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 623 | return __get_pair<0>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 627 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 628 | constexpr _T1 && get(pair<_T1, _T2>&& __p) _NOEXCEPT |
| 629 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 630 | return __get_pair<0>::get(_VSTD::move(__p)); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 631 | } |
| 632 | |
| 633 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 634 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 635 | constexpr _T1 & get(pair<_T2, _T1>& __p) _NOEXCEPT |
| 636 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 637 | return __get_pair<1>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 641 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 642 | constexpr _T1 const & get(pair<_T2, _T1> const& __p) _NOEXCEPT |
| 643 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 644 | return __get_pair<1>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 645 | } |
| 646 | |
| 647 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 648 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 649 | constexpr _T1 && get(pair<_T2, _T1>&& __p) _NOEXCEPT |
| 650 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 651 | return __get_pair<1>::get(_VSTD::move(__p)); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 652 | } |
| 653 | |
| 654 | #endif |
| 655 | |
| 656 | #if _LIBCPP_STD_VER > 11 |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 657 | |
| 658 | template<class _Tp, _Tp... _Ip> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 659 | struct _LIBCPP_TYPE_VIS_ONLY integer_sequence |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 660 | { |
| 661 | typedef _Tp value_type; |
| 662 | static_assert( is_integral<_Tp>::value, |
| 663 | "std::integer_sequence can only be instantiated with an integral type" ); |
| 664 | static |
| 665 | _LIBCPP_INLINE_VISIBILITY |
| 666 | constexpr |
| 667 | size_t |
| 668 | size() noexcept { return sizeof...(_Ip); } |
| 669 | }; |
| 670 | |
| 671 | template<size_t... _Ip> |
| 672 | using index_sequence = integer_sequence<size_t, _Ip...>; |
| 673 | |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 674 | namespace __detail { |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 675 | |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 676 | template<typename _Tp, size_t ..._Extra> struct __repeat; |
| 677 | template<typename _Tp, _Tp ..._Np, size_t ..._Extra> struct __repeat<integer_sequence<_Tp, _Np...>, _Extra...> { |
| 678 | typedef integer_sequence<_Tp, |
| 679 | _Np..., |
| 680 | sizeof...(_Np) + _Np..., |
| 681 | 2 * sizeof...(_Np) + _Np..., |
| 682 | 3 * sizeof...(_Np) + _Np..., |
| 683 | 4 * sizeof...(_Np) + _Np..., |
| 684 | 5 * sizeof...(_Np) + _Np..., |
| 685 | 6 * sizeof...(_Np) + _Np..., |
| 686 | 7 * sizeof...(_Np) + _Np..., |
| 687 | _Extra...> type; |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 688 | }; |
| 689 | |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 690 | template<size_t _Np> struct __parity; |
| 691 | template<size_t _Np> struct __make : __parity<_Np % 8>::template __pmake<_Np> {}; |
| 692 | |
| 693 | template<> struct __make<0> { typedef integer_sequence<size_t> type; }; |
| 694 | template<> struct __make<1> { typedef integer_sequence<size_t, 0> type; }; |
| 695 | template<> struct __make<2> { typedef integer_sequence<size_t, 0, 1> type; }; |
| 696 | template<> struct __make<3> { typedef integer_sequence<size_t, 0, 1, 2> type; }; |
| 697 | template<> struct __make<4> { typedef integer_sequence<size_t, 0, 1, 2, 3> type; }; |
| 698 | template<> struct __make<5> { typedef integer_sequence<size_t, 0, 1, 2, 3, 4> type; }; |
| 699 | template<> struct __make<6> { typedef integer_sequence<size_t, 0, 1, 2, 3, 4, 5> type; }; |
| 700 | template<> struct __make<7> { typedef integer_sequence<size_t, 0, 1, 2, 3, 4, 5, 6> type; }; |
| 701 | |
| 702 | template<> struct __parity<0> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type> {}; }; |
| 703 | template<> struct __parity<1> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 1> {}; }; |
| 704 | template<> struct __parity<2> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 2, _Np - 1> {}; }; |
| 705 | template<> struct __parity<3> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 706 | template<> struct __parity<4> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 707 | template<> struct __parity<5> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 708 | template<> struct __parity<6> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 6, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 709 | template<> struct __parity<7> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 7, _Np - 6, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 710 | |
| 711 | template<typename _Tp, typename _Up> struct __convert { |
| 712 | template<typename> struct __result; |
| 713 | template<_Tp ..._Np> struct __result<integer_sequence<_Tp, _Np...> > { typedef integer_sequence<_Up, _Np...> type; }; |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 714 | }; |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 715 | template<typename _Tp> struct __convert<_Tp, _Tp> { template<typename _Up> struct __result { typedef _Up type; }; }; |
| 716 | |
| 717 | } |
| 718 | |
| 719 | template<typename _Tp, _Tp _Np> using __make_integer_sequence_unchecked = |
| 720 | typename __detail::__convert<size_t, _Tp>::template __result<typename __detail::__make<_Np>::type>::type; |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 721 | |
| 722 | template <class _Tp, _Tp _Ep> |
| 723 | struct __make_integer_sequence |
| 724 | { |
| 725 | static_assert(is_integral<_Tp>::value, |
| 726 | "std::make_integer_sequence can only be instantiated with an integral type" ); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 727 | static_assert(0 <= _Ep, "std::make_integer_sequence input shall not be negative"); |
| 728 | typedef __make_integer_sequence_unchecked<_Tp, _Ep> type; |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 729 | }; |
| 730 | |
| 731 | template<class _Tp, _Tp _Np> |
| 732 | using make_integer_sequence = typename __make_integer_sequence<_Tp, _Np>::type; |
| 733 | |
| 734 | template<size_t _Np> |
| 735 | using make_index_sequence = make_integer_sequence<size_t, _Np>; |
| 736 | |
| 737 | template<class... _Tp> |
| 738 | using index_sequence_for = make_index_sequence<sizeof...(_Tp)>; |
| 739 | |
| 740 | #endif // _LIBCPP_STD_VER > 11 |
| 741 | |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 742 | #if _LIBCPP_STD_VER > 11 |
| 743 | template<class _T1, class _T2 = _T1> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 744 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 745 | _T1 exchange(_T1& __obj, _T2 && __new_value) |
| 746 | { |
Howard Hinnant | 171771a | 2013-07-08 21:06:38 +0000 | [diff] [blame] | 747 | _T1 __old_value = _VSTD::move(__obj); |
| 748 | __obj = _VSTD::forward<_T2>(__new_value); |
| 749 | return __old_value; |
| 750 | } |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 751 | #endif // _LIBCPP_STD_VER > 11 |
| 752 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 753 | _LIBCPP_END_NAMESPACE_STD |
| 754 | |
| 755 | #endif // _LIBCPP_UTILITY |