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 | |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [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> |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 113 | const typename const tuple_element<I, pair<T1, T2> >::type& |
| 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 | |
| 123 | template<size_t I, class T1, class T2> |
Marshall Clow | 50fe0c7 | 2014-03-03 06:18:11 +0000 | [diff] [blame] | 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 | |
| 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 | |
| 205 | template <class _ForwardIterator1, class _ForwardIterator2> |
| 206 | inline _LIBCPP_INLINE_VISIBILITY |
| 207 | _ForwardIterator2 |
| 208 | swap_ranges(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2) |
| 209 | { |
| 210 | for(; __first1 != __last1; ++__first1, ++__first2) |
| 211 | swap(*__first1, *__first2); |
| 212 | return __first2; |
| 213 | } |
| 214 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 215 | template<class _Tp, size_t _Np> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 216 | inline _LIBCPP_INLINE_VISIBILITY |
| 217 | void |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 218 | 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] | 219 | { |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 220 | _VSTD::swap_ranges(__a, __a + _Np, __b); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | template <class _Tp> |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 224 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 225 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 226 | typename conditional |
| 227 | < |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 228 | !is_nothrow_move_constructible<_Tp>::value && is_copy_constructible<_Tp>::value, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 229 | const _Tp&, |
| 230 | _Tp&& |
| 231 | >::type |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 232 | #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 233 | const _Tp& |
| 234 | #endif |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 235 | move_if_noexcept(_Tp& __x) _NOEXCEPT |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 236 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 237 | return _VSTD::move(__x); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 238 | } |
| 239 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 240 | struct _LIBCPP_TYPE_VIS_ONLY piecewise_construct_t { }; |
Howard Hinnant | 616e92d | 2012-04-03 23:45:46 +0000 | [diff] [blame] | 241 | #if defined(_LIBCPP_HAS_NO_CONSTEXPR) || defined(_LIBCPP_BUILDING_UTILITY) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 242 | extern const piecewise_construct_t piecewise_construct;// = piecewise_construct_t(); |
Howard Hinnant | 2a5349b | 2012-04-03 21:09:48 +0000 | [diff] [blame] | 243 | #else |
| 244 | constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); |
| 245 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 246 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 247 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 248 | struct _LIBCPP_TYPE_VIS_ONLY pair |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 249 | { |
| 250 | typedef _T1 first_type; |
| 251 | typedef _T2 second_type; |
| 252 | |
| 253 | _T1 first; |
| 254 | _T2 second; |
| 255 | |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 256 | // pair(const pair&) = default; |
| 257 | // pair(pair&&) = default; |
| 258 | |
Howard Hinnant | 2a5349b | 2012-04-03 21:09:48 +0000 | [diff] [blame] | 259 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR pair() : first(), second() {} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 260 | |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 261 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 262 | pair(const _T1& __x, const _T2& __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 263 | : first(__x), second(__y) {} |
| 264 | |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 265 | template<class _U1, class _U2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 266 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | 9c59d38 | 2011-07-27 19:25:28 +0000 | [diff] [blame] | 267 | pair(const pair<_U1, _U2>& __p |
| 268 | #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE |
Howard Hinnant | fe59276 | 2012-06-09 20:01:23 +0000 | [diff] [blame] | 269 | ,typename enable_if<is_convertible<const _U1&, _T1>::value && |
| 270 | is_convertible<const _U2&, _T2>::value>::type* = 0 |
Howard Hinnant | 9c59d38 | 2011-07-27 19:25:28 +0000 | [diff] [blame] | 271 | #endif |
| 272 | ) |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 273 | : first(__p.first), second(__p.second) {} |
| 274 | |
Howard Hinnant | 65173fe | 2013-11-14 22:52:25 +0000 | [diff] [blame] | 275 | #if !defined(_LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS) && _LIBCPP_TRIVIAL_PAIR_COPY_CTOR |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 276 | _LIBCPP_INLINE_VISIBILITY |
| 277 | pair(const pair& __p) = default; |
Howard Hinnant | 65173fe | 2013-11-14 22:52:25 +0000 | [diff] [blame] | 278 | #elif !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) || !_LIBCPP_TRIVIAL_PAIR_COPY_CTOR |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 279 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 280 | pair(const pair& __p) |
| 281 | _NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value && |
| 282 | is_nothrow_copy_constructible<second_type>::value) |
| 283 | : first(__p.first), |
| 284 | second(__p.second) |
| 285 | { |
| 286 | } |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 287 | #endif |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 288 | |
| 289 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 290 | pair& operator=(const pair& __p) |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 291 | _NOEXCEPT_(is_nothrow_copy_assignable<first_type>::value && |
| 292 | is_nothrow_copy_assignable<second_type>::value) |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 293 | { |
| 294 | first = __p.first; |
| 295 | second = __p.second; |
| 296 | return *this; |
| 297 | } |
| 298 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 299 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 300 | |
| 301 | template <class _U1, class _U2, |
Howard Hinnant | fe59276 | 2012-06-09 20:01:23 +0000 | [diff] [blame] | 302 | class = typename enable_if<is_convertible<_U1, first_type>::value && |
| 303 | is_convertible<_U2, second_type>::value>::type> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 304 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 305 | pair(_U1&& __u1, _U2&& __u2) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 306 | : first(_VSTD::forward<_U1>(__u1)), |
| 307 | second(_VSTD::forward<_U2>(__u2)) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 308 | {} |
| 309 | |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 310 | template<class _U1, class _U2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 311 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 312 | pair(pair<_U1, _U2>&& __p, |
Howard Hinnant | fe59276 | 2012-06-09 20:01:23 +0000 | [diff] [blame] | 313 | typename enable_if<is_convertible<_U1, _T1>::value && |
| 314 | is_convertible<_U2, _T2>::value>::type* = 0) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 315 | : first(_VSTD::forward<_U1>(__p.first)), |
| 316 | second(_VSTD::forward<_U2>(__p.second)) {} |
Howard Hinnant | 469d419 | 2011-04-29 18:10:55 +0000 | [diff] [blame] | 317 | |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 318 | #ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS |
| 319 | _LIBCPP_INLINE_VISIBILITY |
| 320 | pair(pair&& __p) = default; |
| 321 | #else |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 322 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 323 | pair(pair&& __p) _NOEXCEPT_(is_nothrow_move_constructible<first_type>::value && |
| 324 | is_nothrow_move_constructible<second_type>::value) |
| 325 | : first(_VSTD::forward<first_type>(__p.first)), |
| 326 | second(_VSTD::forward<second_type>(__p.second)) |
| 327 | { |
| 328 | } |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 329 | #endif |
Howard Hinnant | 61aa601 | 2011-07-01 19:24:36 +0000 | [diff] [blame] | 330 | |
| 331 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 332 | pair& |
| 333 | operator=(pair&& __p) _NOEXCEPT_(is_nothrow_move_assignable<first_type>::value && |
| 334 | is_nothrow_move_assignable<second_type>::value) |
| 335 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 336 | first = _VSTD::forward<first_type>(__p.first); |
| 337 | second = _VSTD::forward<second_type>(__p.second); |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 338 | return *this; |
| 339 | } |
| 340 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 341 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 342 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 343 | template<class _Tuple, |
| 344 | class = typename enable_if<__tuple_convertible<_Tuple, pair>::value>::type> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 345 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 346 | pair(_Tuple&& __p) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 347 | : first(_VSTD::forward<typename tuple_element<0, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 348 | typename __make_tuple_types<_Tuple>::type>::type>(get<0>(__p))), |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 349 | second(_VSTD::forward<typename tuple_element<1, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 350 | typename __make_tuple_types<_Tuple>::type>::type>(get<1>(__p))) |
| 351 | {} |
| 352 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 353 | |
Howard Hinnant | 726a76f | 2010-11-16 21:10:23 +0000 | [diff] [blame] | 354 | |
Howard Hinnant | 6cc99fa | 2011-12-19 17:58:44 +0000 | [diff] [blame] | 355 | template <class... _Args1, class... _Args2> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 356 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 357 | pair(piecewise_construct_t __pc, tuple<_Args1...> __first_args, |
| 358 | tuple<_Args2...> __second_args) |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 359 | : pair(__pc, __first_args, __second_args, |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 360 | typename __make_tuple_indices<sizeof...(_Args1)>::type(), |
| 361 | typename __make_tuple_indices<sizeof...(_Args2) >::type()) |
| 362 | {} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 363 | |
| 364 | template <class _Tuple, |
| 365 | class = typename enable_if<__tuple_assignable<_Tuple, pair>::value>::type> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 366 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 367 | pair& |
| 368 | operator=(_Tuple&& __p) |
| 369 | { |
| 370 | typedef typename __make_tuple_types<_Tuple>::type _TupleRef; |
| 371 | typedef typename tuple_element<0, _TupleRef>::type _U0; |
| 372 | typedef typename tuple_element<1, _TupleRef>::type _U1; |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 373 | first = _VSTD::forward<_U0>(_VSTD::get<0>(__p)); |
| 374 | second = _VSTD::forward<_U1>(_VSTD::get<1>(__p)); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 375 | return *this; |
| 376 | } |
| 377 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 378 | #endif // _LIBCPP_HAS_NO_VARIADICS |
| 379 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 380 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 381 | _LIBCPP_INLINE_VISIBILITY |
| 382 | void |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 383 | swap(pair& __p) _NOEXCEPT_(__is_nothrow_swappable<first_type>::value && |
| 384 | __is_nothrow_swappable<second_type>::value) |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 385 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 386 | _VSTD::iter_swap(&first, &__p.first); |
| 387 | _VSTD::iter_swap(&second, &__p.second); |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 388 | } |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 389 | private: |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 390 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 391 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 392 | template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2> |
Howard Hinnant | 5f5859c | 2011-01-13 20:05:05 +0000 | [diff] [blame] | 393 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 394 | pair(piecewise_construct_t, |
| 395 | tuple<_Args1...>& __first_args, tuple<_Args2...>& __second_args, |
| 396 | __tuple_indices<_I1...>, __tuple_indices<_I2...>); |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 397 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 398 | }; |
| 399 | |
| 400 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 401 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 402 | bool |
| 403 | operator==(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 404 | { |
| 405 | return __x.first == __y.first && __x.second == __y.second; |
| 406 | } |
| 407 | |
| 408 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 409 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 410 | bool |
| 411 | operator!=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 412 | { |
| 413 | return !(__x == __y); |
| 414 | } |
| 415 | |
| 416 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 417 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 418 | bool |
| 419 | operator< (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 420 | { |
| 421 | return __x.first < __y.first || (!(__y.first < __x.first) && __x.second < __y.second); |
| 422 | } |
| 423 | |
| 424 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 425 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 426 | bool |
| 427 | operator> (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 428 | { |
| 429 | return __y < __x; |
| 430 | } |
| 431 | |
| 432 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 433 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 434 | bool |
| 435 | operator>=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 436 | { |
| 437 | return !(__x < __y); |
| 438 | } |
| 439 | |
| 440 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 441 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 442 | bool |
| 443 | operator<=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y) |
| 444 | { |
| 445 | return !(__y < __x); |
| 446 | } |
| 447 | |
| 448 | template <class _T1, class _T2> |
| 449 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | aabf287 | 2011-06-01 19:59:32 +0000 | [diff] [blame] | 450 | typename enable_if |
| 451 | < |
| 452 | __is_swappable<_T1>::value && |
| 453 | __is_swappable<_T2>::value, |
| 454 | void |
| 455 | >::type |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 456 | swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y) |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 457 | _NOEXCEPT_((__is_nothrow_swappable<_T1>::value && |
| 458 | __is_nothrow_swappable<_T2>::value)) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 459 | { |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 460 | __x.swap(__y); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 461 | } |
| 462 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 463 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 464 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 465 | template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY reference_wrapper; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 466 | |
| 467 | template <class _Tp> |
Marshall Clow | a71f956 | 2014-01-03 22:55:49 +0000 | [diff] [blame] | 468 | struct __make_pair_return_impl |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 469 | { |
| 470 | typedef _Tp type; |
| 471 | }; |
| 472 | |
| 473 | template <class _Tp> |
Marshall Clow | a71f956 | 2014-01-03 22:55:49 +0000 | [diff] [blame] | 474 | struct __make_pair_return_impl<reference_wrapper<_Tp>> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 475 | { |
| 476 | typedef _Tp& type; |
| 477 | }; |
| 478 | |
| 479 | template <class _Tp> |
| 480 | struct __make_pair_return |
| 481 | { |
Marshall Clow | a71f956 | 2014-01-03 22:55:49 +0000 | [diff] [blame] | 482 | typedef typename __make_pair_return_impl<typename decay<_Tp>::type>::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 483 | }; |
| 484 | |
| 485 | template <class _T1, class _T2> |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 486 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 487 | pair<typename __make_pair_return<_T1>::type, typename __make_pair_return<_T2>::type> |
| 488 | make_pair(_T1&& __t1, _T2&& __t2) |
| 489 | { |
| 490 | 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] | 491 | (_VSTD::forward<_T1>(__t1), _VSTD::forward<_T2>(__t2)); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 492 | } |
| 493 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 494 | #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 495 | |
| 496 | template <class _T1, class _T2> |
| 497 | inline _LIBCPP_INLINE_VISIBILITY |
| 498 | pair<_T1,_T2> |
| 499 | make_pair(_T1 __x, _T2 __y) |
| 500 | { |
| 501 | return pair<_T1, _T2>(__x, __y); |
| 502 | } |
| 503 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 504 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 505 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 506 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 507 | class _LIBCPP_TYPE_VIS_ONLY tuple_size<pair<_T1, _T2> > |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 508 | : public integral_constant<size_t, 2> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 509 | |
| 510 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 511 | class _LIBCPP_TYPE_VIS_ONLY tuple_size<const pair<_T1, _T2> > |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 512 | : public integral_constant<size_t, 2> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 513 | |
| 514 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 515 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<0, pair<_T1, _T2> > |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 516 | { |
| 517 | public: |
| 518 | typedef _T1 type; |
| 519 | }; |
| 520 | |
| 521 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 522 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<1, pair<_T1, _T2> > |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 523 | { |
| 524 | public: |
| 525 | typedef _T2 type; |
| 526 | }; |
| 527 | |
| 528 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 529 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<0, const pair<_T1, _T2> > |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 530 | { |
| 531 | public: |
| 532 | typedef const _T1 type; |
| 533 | }; |
| 534 | |
| 535 | template <class _T1, class _T2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 536 | class _LIBCPP_TYPE_VIS_ONLY tuple_element<1, const pair<_T1, _T2> > |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 537 | { |
| 538 | public: |
| 539 | typedef const _T2 type; |
| 540 | }; |
| 541 | |
| 542 | template <size_t _Ip> struct __get_pair; |
| 543 | |
| 544 | template <> |
| 545 | struct __get_pair<0> |
| 546 | { |
| 547 | template <class _T1, class _T2> |
| 548 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 549 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 550 | _T1& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 551 | get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 552 | |
| 553 | template <class _T1, class _T2> |
| 554 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 555 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 556 | const _T1& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 557 | get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 558 | |
| 559 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 560 | |
| 561 | template <class _T1, class _T2> |
| 562 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 563 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 564 | _T1&& |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 565 | get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T1>(__p.first);} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 566 | |
| 567 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 568 | }; |
| 569 | |
| 570 | template <> |
| 571 | struct __get_pair<1> |
| 572 | { |
| 573 | template <class _T1, class _T2> |
| 574 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 575 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 576 | _T2& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 577 | get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 578 | |
| 579 | template <class _T1, class _T2> |
| 580 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 581 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 582 | const _T2& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 583 | get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 584 | |
| 585 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 586 | |
| 587 | template <class _T1, class _T2> |
| 588 | static |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 589 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 590 | _T2&& |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 591 | get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T2>(__p.second);} |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 592 | |
| 593 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 594 | }; |
| 595 | |
| 596 | template <size_t _Ip, class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 597 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 598 | typename tuple_element<_Ip, pair<_T1, _T2> >::type& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 599 | get(pair<_T1, _T2>& __p) _NOEXCEPT |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 600 | { |
| 601 | return __get_pair<_Ip>::get(__p); |
| 602 | } |
| 603 | |
| 604 | template <size_t _Ip, class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 605 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 606 | const typename tuple_element<_Ip, pair<_T1, _T2> >::type& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 607 | get(const pair<_T1, _T2>& __p) _NOEXCEPT |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 608 | { |
| 609 | return __get_pair<_Ip>::get(__p); |
| 610 | } |
| 611 | |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 612 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 613 | |
| 614 | template <size_t _Ip, class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 615 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 616 | typename tuple_element<_Ip, pair<_T1, _T2> >::type&& |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 617 | get(pair<_T1, _T2>&& __p) _NOEXCEPT |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 618 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 619 | return __get_pair<_Ip>::get(_VSTD::move(__p)); |
Howard Hinnant | cd2254b | 2010-11-17 19:52:17 +0000 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 623 | |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 624 | #if _LIBCPP_STD_VER > 11 |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 625 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 626 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 627 | constexpr _T1 & get(pair<_T1, _T2>& __p) _NOEXCEPT |
| 628 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 629 | return __get_pair<0>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 633 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 634 | constexpr _T1 const & get(pair<_T1, _T2> const& __p) _NOEXCEPT |
| 635 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 636 | return __get_pair<0>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 637 | } |
| 638 | |
| 639 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 640 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 641 | constexpr _T1 && get(pair<_T1, _T2>&& __p) _NOEXCEPT |
| 642 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 643 | return __get_pair<0>::get(_VSTD::move(__p)); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 647 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 648 | constexpr _T1 & get(pair<_T2, _T1>& __p) _NOEXCEPT |
| 649 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 650 | return __get_pair<1>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 651 | } |
| 652 | |
| 653 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 654 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 655 | constexpr _T1 const & get(pair<_T2, _T1> const& __p) _NOEXCEPT |
| 656 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 657 | return __get_pair<1>::get(__p); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 658 | } |
| 659 | |
| 660 | template <class _T1, class _T2> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 661 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 662 | constexpr _T1 && get(pair<_T2, _T1>&& __p) _NOEXCEPT |
| 663 | { |
Marshall Clow | 206f6cd | 2013-07-16 17:45:44 +0000 | [diff] [blame] | 664 | return __get_pair<1>::get(_VSTD::move(__p)); |
Marshall Clow | e8029e5 | 2013-07-13 02:54:05 +0000 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | #endif |
| 668 | |
| 669 | #if _LIBCPP_STD_VER > 11 |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 670 | |
| 671 | template<class _Tp, _Tp... _Ip> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 672 | struct _LIBCPP_TYPE_VIS_ONLY integer_sequence |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 673 | { |
| 674 | typedef _Tp value_type; |
| 675 | static_assert( is_integral<_Tp>::value, |
| 676 | "std::integer_sequence can only be instantiated with an integral type" ); |
| 677 | static |
| 678 | _LIBCPP_INLINE_VISIBILITY |
| 679 | constexpr |
| 680 | size_t |
| 681 | size() noexcept { return sizeof...(_Ip); } |
| 682 | }; |
| 683 | |
| 684 | template<size_t... _Ip> |
| 685 | using index_sequence = integer_sequence<size_t, _Ip...>; |
| 686 | |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 687 | namespace __detail { |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 688 | |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 689 | template<typename _Tp, size_t ..._Extra> struct __repeat; |
| 690 | template<typename _Tp, _Tp ..._Np, size_t ..._Extra> struct __repeat<integer_sequence<_Tp, _Np...>, _Extra...> { |
| 691 | typedef integer_sequence<_Tp, |
| 692 | _Np..., |
| 693 | sizeof...(_Np) + _Np..., |
| 694 | 2 * sizeof...(_Np) + _Np..., |
| 695 | 3 * sizeof...(_Np) + _Np..., |
| 696 | 4 * sizeof...(_Np) + _Np..., |
| 697 | 5 * sizeof...(_Np) + _Np..., |
| 698 | 6 * sizeof...(_Np) + _Np..., |
| 699 | 7 * sizeof...(_Np) + _Np..., |
| 700 | _Extra...> type; |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 701 | }; |
| 702 | |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 703 | template<size_t _Np> struct __parity; |
| 704 | template<size_t _Np> struct __make : __parity<_Np % 8>::template __pmake<_Np> {}; |
| 705 | |
| 706 | template<> struct __make<0> { typedef integer_sequence<size_t> type; }; |
| 707 | template<> struct __make<1> { typedef integer_sequence<size_t, 0> type; }; |
| 708 | template<> struct __make<2> { typedef integer_sequence<size_t, 0, 1> type; }; |
| 709 | template<> struct __make<3> { typedef integer_sequence<size_t, 0, 1, 2> type; }; |
| 710 | template<> struct __make<4> { typedef integer_sequence<size_t, 0, 1, 2, 3> type; }; |
| 711 | template<> struct __make<5> { typedef integer_sequence<size_t, 0, 1, 2, 3, 4> type; }; |
| 712 | template<> struct __make<6> { typedef integer_sequence<size_t, 0, 1, 2, 3, 4, 5> type; }; |
| 713 | template<> struct __make<7> { typedef integer_sequence<size_t, 0, 1, 2, 3, 4, 5, 6> type; }; |
| 714 | |
| 715 | template<> struct __parity<0> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type> {}; }; |
| 716 | template<> struct __parity<1> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 1> {}; }; |
| 717 | template<> struct __parity<2> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 2, _Np - 1> {}; }; |
| 718 | template<> struct __parity<3> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 719 | template<> struct __parity<4> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; |
| 720 | 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> {}; }; |
| 721 | 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> {}; }; |
| 722 | 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> {}; }; |
| 723 | |
| 724 | template<typename _Tp, typename _Up> struct __convert { |
| 725 | template<typename> struct __result; |
| 726 | 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] | 727 | }; |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 728 | template<typename _Tp> struct __convert<_Tp, _Tp> { template<typename _Up> struct __result { typedef _Up type; }; }; |
| 729 | |
| 730 | } |
| 731 | |
| 732 | template<typename _Tp, _Tp _Np> using __make_integer_sequence_unchecked = |
| 733 | 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] | 734 | |
| 735 | template <class _Tp, _Tp _Ep> |
| 736 | struct __make_integer_sequence |
| 737 | { |
| 738 | static_assert(is_integral<_Tp>::value, |
| 739 | "std::make_integer_sequence can only be instantiated with an integral type" ); |
| 740 | static_assert(0 <= _Ep, "std::make_integer_sequence input shall not be negative"); |
Marshall Clow | 42e55e9 | 2013-07-03 19:20:30 +0000 | [diff] [blame] | 741 | typedef __make_integer_sequence_unchecked<_Tp, _Ep> type; |
Marshall Clow | 7ec46bc | 2013-07-01 16:26:55 +0000 | [diff] [blame] | 742 | }; |
| 743 | |
| 744 | template<class _Tp, _Tp _Np> |
| 745 | using make_integer_sequence = typename __make_integer_sequence<_Tp, _Np>::type; |
| 746 | |
| 747 | template<size_t _Np> |
| 748 | using make_index_sequence = make_integer_sequence<size_t, _Np>; |
| 749 | |
| 750 | template<class... _Tp> |
| 751 | using index_sequence_for = make_index_sequence<sizeof...(_Tp)>; |
| 752 | |
| 753 | #endif // _LIBCPP_STD_VER > 11 |
| 754 | |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 755 | #if _LIBCPP_STD_VER > 11 |
| 756 | template<class _T1, class _T2 = _T1> |
Howard Hinnant | 1e56424 | 2013-10-04 22:09:00 +0000 | [diff] [blame] | 757 | inline _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 758 | _T1 exchange(_T1& __obj, _T2 && __new_value) |
| 759 | { |
Howard Hinnant | 171771a | 2013-07-08 21:06:38 +0000 | [diff] [blame] | 760 | _T1 __old_value = _VSTD::move(__obj); |
| 761 | __obj = _VSTD::forward<_T2>(__new_value); |
| 762 | return __old_value; |
| 763 | } |
Marshall Clow | e2735d1 | 2013-07-08 20:54:40 +0000 | [diff] [blame] | 764 | #endif // _LIBCPP_STD_VER > 11 |
| 765 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 766 | _LIBCPP_END_NAMESPACE_STD |
| 767 | |
| 768 | #endif // _LIBCPP_UTILITY |