Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1 | // -*- C++ -*- |
| 2 | //===------------------------ type_traits ---------------------------------===// |
| 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_TYPE_TRAITS |
| 12 | #define _LIBCPP_TYPE_TRAITS |
| 13 | |
| 14 | /* |
| 15 | type_traits synopsis |
| 16 | |
| 17 | namespace std |
| 18 | { |
| 19 | |
| 20 | // helper class: |
| 21 | template <class T, T v> struct integral_constant; |
Marshall Clow | e62560a | 2015-05-18 23:21:06 +0000 | [diff] [blame] | 22 | typedef integral_constant<bool, true> true_type; // C++11 |
| 23 | typedef integral_constant<bool, false> false_type; // C++11 |
| 24 | |
| 25 | template <bool B> // C++14 |
| 26 | using bool_constant = integral_constant<bool, B>; // C++14 |
| 27 | typedef bool_constant<true> true_type; // C++14 |
| 28 | typedef bool_constant<false> false_type; // C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 29 | |
| 30 | // helper traits |
| 31 | template <bool, class T = void> struct enable_if; |
| 32 | template <bool, class T, class F> struct conditional; |
| 33 | |
| 34 | // Primary classification traits: |
| 35 | template <class T> struct is_void; |
Marshall Clow | 79d8c99 | 2013-10-05 21:21:17 +0000 | [diff] [blame] | 36 | template <class T> struct is_null_pointer; // C++14 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 37 | template <class T> struct is_integral; |
| 38 | template <class T> struct is_floating_point; |
| 39 | template <class T> struct is_array; |
| 40 | template <class T> struct is_pointer; |
| 41 | template <class T> struct is_lvalue_reference; |
| 42 | template <class T> struct is_rvalue_reference; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 43 | template <class T> struct is_member_object_pointer; |
| 44 | template <class T> struct is_member_function_pointer; |
| 45 | template <class T> struct is_enum; |
| 46 | template <class T> struct is_union; |
| 47 | template <class T> struct is_class; |
| 48 | template <class T> struct is_function; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 49 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 50 | // Secondary classification traits: |
| 51 | template <class T> struct is_reference; |
| 52 | template <class T> struct is_arithmetic; |
| 53 | template <class T> struct is_fundamental; |
| 54 | template <class T> struct is_member_pointer; |
| 55 | template <class T> struct is_scalar; |
| 56 | template <class T> struct is_object; |
| 57 | template <class T> struct is_compound; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 58 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 59 | // Const-volatile properties and transformations: |
| 60 | template <class T> struct is_const; |
| 61 | template <class T> struct is_volatile; |
| 62 | template <class T> struct remove_const; |
| 63 | template <class T> struct remove_volatile; |
| 64 | template <class T> struct remove_cv; |
| 65 | template <class T> struct add_const; |
| 66 | template <class T> struct add_volatile; |
| 67 | template <class T> struct add_cv; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 68 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 69 | // Reference transformations: |
| 70 | template <class T> struct remove_reference; |
| 71 | template <class T> struct add_lvalue_reference; |
| 72 | template <class T> struct add_rvalue_reference; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 73 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 74 | // Pointer transformations: |
| 75 | template <class T> struct remove_pointer; |
| 76 | template <class T> struct add_pointer; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 77 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 78 | // Integral properties: |
| 79 | template <class T> struct is_signed; |
| 80 | template <class T> struct is_unsigned; |
| 81 | template <class T> struct make_signed; |
| 82 | template <class T> struct make_unsigned; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 83 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 84 | // Array properties and transformations: |
| 85 | template <class T> struct rank; |
| 86 | template <class T, unsigned I = 0> struct extent; |
| 87 | template <class T> struct remove_extent; |
| 88 | template <class T> struct remove_all_extents; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 89 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 90 | // Member introspection: |
| 91 | template <class T> struct is_pod; |
| 92 | template <class T> struct is_trivial; |
| 93 | template <class T> struct is_trivially_copyable; |
| 94 | template <class T> struct is_standard_layout; |
| 95 | template <class T> struct is_literal_type; |
| 96 | template <class T> struct is_empty; |
| 97 | template <class T> struct is_polymorphic; |
| 98 | template <class T> struct is_abstract; |
Marshall Clow | ebd6c2b | 2014-03-05 03:39:25 +0000 | [diff] [blame] | 99 | template <class T> struct is_final; // C++14 |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 100 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 101 | template <class T, class... Args> struct is_constructible; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 102 | template <class T> struct is_default_constructible; |
| 103 | template <class T> struct is_copy_constructible; |
| 104 | template <class T> struct is_move_constructible; |
| 105 | template <class T, class U> struct is_assignable; |
| 106 | template <class T> struct is_copy_assignable; |
| 107 | template <class T> struct is_move_assignable; |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 108 | template <class T, class U> struct is_swappable_with; // C++17 |
| 109 | template <class T> struct is_swappable; // C++17 |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 110 | template <class T> struct is_destructible; |
| 111 | |
| 112 | template <class T, class... Args> struct is_trivially_constructible; |
| 113 | template <class T> struct is_trivially_default_constructible; |
| 114 | template <class T> struct is_trivially_copy_constructible; |
| 115 | template <class T> struct is_trivially_move_constructible; |
| 116 | template <class T, class U> struct is_trivially_assignable; |
| 117 | template <class T> struct is_trivially_copy_assignable; |
| 118 | template <class T> struct is_trivially_move_assignable; |
| 119 | template <class T> struct is_trivially_destructible; |
| 120 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 121 | template <class T, class... Args> struct is_nothrow_constructible; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 122 | template <class T> struct is_nothrow_default_constructible; |
| 123 | template <class T> struct is_nothrow_copy_constructible; |
| 124 | template <class T> struct is_nothrow_move_constructible; |
| 125 | template <class T, class U> struct is_nothrow_assignable; |
| 126 | template <class T> struct is_nothrow_copy_assignable; |
| 127 | template <class T> struct is_nothrow_move_assignable; |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 128 | template <class T, class U> struct is_nothrow_swappable_with; // C++17 |
| 129 | template <class T> struct is_nothrow_swappable; // C++17 |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 130 | template <class T> struct is_nothrow_destructible; |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 131 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 132 | template <class T> struct has_virtual_destructor; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 133 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 134 | // Relationships between types: |
| 135 | template <class T, class U> struct is_same; |
| 136 | template <class Base, class Derived> struct is_base_of; |
| 137 | template <class From, class To> struct is_convertible; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 138 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 139 | template <class, class R = void> struct is_callable; // not defined |
| 140 | template <class Fn, class... ArgTypes, class R> |
| 141 | struct is_callable<Fn(ArgTypes...), R>; |
| 142 | |
| 143 | template <class, class R = void> struct is_nothrow_callable; // not defined |
| 144 | template <class Fn, class... ArgTypes, class R> |
| 145 | struct is_nothrow_callable<Fn(ArgTypes...), R>; |
| 146 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 147 | // Alignment properties and transformations: |
| 148 | template <class T> struct alignment_of; |
| 149 | template <size_t Len, size_t Align = most_stringent_alignment_requirement> |
| 150 | struct aligned_storage; |
Howard Hinnant | 5544f7e | 2013-04-22 19:37:49 +0000 | [diff] [blame] | 151 | template <size_t Len, class... Types> struct aligned_union; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 152 | |
| 153 | template <class T> struct decay; |
| 154 | template <class... T> struct common_type; |
| 155 | template <class T> struct underlying_type; |
| 156 | template <class> class result_of; // undefined |
| 157 | template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>; |
| 158 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 159 | // const-volatile modifications: |
| 160 | template <class T> |
| 161 | using remove_const_t = typename remove_const<T>::type; // C++14 |
| 162 | template <class T> |
| 163 | using remove_volatile_t = typename remove_volatile<T>::type; // C++14 |
| 164 | template <class T> |
| 165 | using remove_cv_t = typename remove_cv<T>::type; // C++14 |
| 166 | template <class T> |
| 167 | using add_const_t = typename add_const<T>::type; // C++14 |
| 168 | template <class T> |
| 169 | using add_volatile_t = typename add_volatile<T>::type; // C++14 |
| 170 | template <class T> |
| 171 | using add_cv_t = typename add_cv<T>::type; // C++14 |
| 172 | |
| 173 | // reference modifications: |
| 174 | template <class T> |
| 175 | using remove_reference_t = typename remove_reference<T>::type; // C++14 |
| 176 | template <class T> |
| 177 | using add_lvalue_reference_t = typename add_lvalue_reference<T>::type; // C++14 |
| 178 | template <class T> |
| 179 | using add_rvalue_reference_t = typename add_rvalue_reference<T>::type; // C++14 |
| 180 | |
| 181 | // sign modifications: |
| 182 | template <class T> |
| 183 | using make_signed_t = typename make_signed<T>::type; // C++14 |
| 184 | template <class T> |
| 185 | using make_unsigned_t = typename make_unsigned<T>::type; // C++14 |
| 186 | |
| 187 | // array modifications: |
| 188 | template <class T> |
| 189 | using remove_extent_t = typename remove_extent<T>::type; // C++14 |
| 190 | template <class T> |
| 191 | using remove_all_extents_t = typename remove_all_extents<T>::type; // C++14 |
| 192 | |
| 193 | // pointer modifications: |
| 194 | template <class T> |
| 195 | using remove_pointer_t = typename remove_pointer<T>::type; // C++14 |
| 196 | template <class T> |
| 197 | using add_pointer_t = typename add_pointer<T>::type; // C++14 |
| 198 | |
| 199 | // other transformations: |
| 200 | template <size_t Len, std::size_t Align=default-alignment> |
| 201 | using aligned_storage_t = typename aligned_storage<Len,Align>::type; // C++14 |
| 202 | template <std::size_t Len, class... Types> |
| 203 | using aligned_union_t = typename aligned_union<Len,Types...>::type; // C++14 |
| 204 | template <class T> |
| 205 | using decay_t = typename decay<T>::type; // C++14 |
| 206 | template <bool b, class T=void> |
| 207 | using enable_if_t = typename enable_if<b,T>::type; // C++14 |
| 208 | template <bool b, class T, class F> |
| 209 | using conditional_t = typename conditional<b,T,F>::type; // C++14 |
| 210 | template <class... T> |
| 211 | using common_type_t = typename common_type<T...>::type; // C++14 |
| 212 | template <class T> |
| 213 | using underlying_type_t = typename underlying_type<T>::type; // C++14 |
| 214 | template <class F, class... ArgTypes> |
| 215 | using result_of_t = typename result_of<F(ArgTypes...)>::type; // C++14 |
| 216 | |
Marshall Clow | 88aae92 | 2014-11-17 15:50:08 +0000 | [diff] [blame] | 217 | template <class...> |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 218 | using void_t = void; // C++17 |
| 219 | |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 220 | // See C++14 20.10.4.1, primary type categories |
| 221 | template <class T> constexpr bool is_void_v |
| 222 | = is_void<T>::value; // C++17 |
| 223 | template <class T> constexpr bool is_null_pointer_v |
| 224 | = is_null_pointer<T>::value; // C++17 |
| 225 | template <class T> constexpr bool is_integral_v |
| 226 | = is_integral<T>::value; // C++17 |
| 227 | template <class T> constexpr bool is_floating_point_v |
| 228 | = is_floating_point<T>::value; // C++17 |
| 229 | template <class T> constexpr bool is_array_v |
| 230 | = is_array<T>::value; // C++17 |
| 231 | template <class T> constexpr bool is_pointer_v |
| 232 | = is_pointer<T>::value; // C++17 |
| 233 | template <class T> constexpr bool is_lvalue_reference_v |
| 234 | = is_lvalue_reference<T>::value; // C++17 |
| 235 | template <class T> constexpr bool is_rvalue_reference_v |
| 236 | = is_rvalue_reference<T>::value; // C++17 |
| 237 | template <class T> constexpr bool is_member_object_pointer_v |
| 238 | = is_member_object_pointer<T>::value; // C++17 |
| 239 | template <class T> constexpr bool is_member_function_pointer_v |
| 240 | = is_member_function_pointer<T>::value; // C++17 |
| 241 | template <class T> constexpr bool is_enum_v |
| 242 | = is_enum<T>::value; // C++17 |
| 243 | template <class T> constexpr bool is_union_v |
| 244 | = is_union<T>::value; // C++17 |
| 245 | template <class T> constexpr bool is_class_v |
| 246 | = is_class<T>::value; // C++17 |
| 247 | template <class T> constexpr bool is_function_v |
| 248 | = is_function<T>::value; // C++17 |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 249 | |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 250 | // See C++14 20.10.4.2, composite type categories |
| 251 | template <class T> constexpr bool is_reference_v |
| 252 | = is_reference<T>::value; // C++17 |
| 253 | template <class T> constexpr bool is_arithmetic_v |
| 254 | = is_arithmetic<T>::value; // C++17 |
| 255 | template <class T> constexpr bool is_fundamental_v |
| 256 | = is_fundamental<T>::value; // C++17 |
| 257 | template <class T> constexpr bool is_object_v |
| 258 | = is_object<T>::value; // C++17 |
| 259 | template <class T> constexpr bool is_scalar_v |
| 260 | = is_scalar<T>::value; // C++17 |
| 261 | template <class T> constexpr bool is_compound_v |
| 262 | = is_compound<T>::value; // C++17 |
| 263 | template <class T> constexpr bool is_member_pointer_v |
| 264 | = is_member_pointer<T>::value; // C++17 |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 265 | |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 266 | // See C++14 20.10.4.3, type properties |
| 267 | template <class T> constexpr bool is_const_v |
| 268 | = is_const<T>::value; // C++17 |
| 269 | template <class T> constexpr bool is_volatile_v |
| 270 | = is_volatile<T>::value; // C++17 |
| 271 | template <class T> constexpr bool is_trivial_v |
| 272 | = is_trivial<T>::value; // C++17 |
| 273 | template <class T> constexpr bool is_trivially_copyable_v |
| 274 | = is_trivially_copyable<T>::value; // C++17 |
| 275 | template <class T> constexpr bool is_standard_layout_v |
| 276 | = is_standard_layout<T>::value; // C++17 |
| 277 | template <class T> constexpr bool is_pod_v |
| 278 | = is_pod<T>::value; // C++17 |
| 279 | template <class T> constexpr bool is_literal_type_v |
| 280 | = is_literal_type<T>::value; // C++17 |
| 281 | template <class T> constexpr bool is_empty_v |
| 282 | = is_empty<T>::value; // C++17 |
| 283 | template <class T> constexpr bool is_polymorphic_v |
| 284 | = is_polymorphic<T>::value; // C++17 |
| 285 | template <class T> constexpr bool is_abstract_v |
| 286 | = is_abstract<T>::value; // C++17 |
| 287 | template <class T> constexpr bool is_final_v |
| 288 | = is_final<T>::value; // C++17 |
| 289 | template <class T> constexpr bool is_signed_v |
| 290 | = is_signed<T>::value; // C++17 |
| 291 | template <class T> constexpr bool is_unsigned_v |
| 292 | = is_unsigned<T>::value; // C++17 |
| 293 | template <class T, class... Args> constexpr bool is_constructible_v |
| 294 | = is_constructible<T, Args...>::value; // C++17 |
| 295 | template <class T> constexpr bool is_default_constructible_v |
| 296 | = is_default_constructible<T>::value; // C++17 |
| 297 | template <class T> constexpr bool is_copy_constructible_v |
| 298 | = is_copy_constructible<T>::value; // C++17 |
| 299 | template <class T> constexpr bool is_move_constructible_v |
| 300 | = is_move_constructible<T>::value; // C++17 |
| 301 | template <class T, class U> constexpr bool is_assignable_v |
| 302 | = is_assignable<T, U>::value; // C++17 |
| 303 | template <class T> constexpr bool is_copy_assignable_v |
| 304 | = is_copy_assignable<T>::value; // C++17 |
| 305 | template <class T> constexpr bool is_move_assignable_v |
| 306 | = is_move_assignable<T>::value; // C++17 |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 307 | template <class T, class U> constexpr bool is_swappable_with_v |
| 308 | = is_swappable_with<T, U>::value; // C++17 |
| 309 | template <class T> constexpr bool is_swappable_v |
| 310 | = is_swappable<T>::value; // C++17 |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 311 | template <class T> constexpr bool is_destructible_v |
| 312 | = is_destructible<T>::value; // C++17 |
| 313 | template <class T, class... Args> constexpr bool is_trivially_constructible_v |
| 314 | = is_trivially_constructible<T, Args...>::value; // C++17 |
| 315 | template <class T> constexpr bool is_trivially_default_constructible_v |
| 316 | = is_trivially_default_constructible<T>::value; // C++17 |
| 317 | template <class T> constexpr bool is_trivially_copy_constructible_v |
| 318 | = is_trivially_copy_constructible<T>::value; // C++17 |
| 319 | template <class T> constexpr bool is_trivially_move_constructible_v |
| 320 | = is_trivially_move_constructible<T>::value; // C++17 |
| 321 | template <class T, class U> constexpr bool is_trivially_assignable_v |
| 322 | = is_trivially_assignable<T, U>::value; // C++17 |
| 323 | template <class T> constexpr bool is_trivially_copy_assignable_v |
| 324 | = is_trivially_copy_assignable<T>::value; // C++17 |
| 325 | template <class T> constexpr bool is_trivially_move_assignable_v |
| 326 | = is_trivially_move_assignable<T>::value; // C++17 |
| 327 | template <class T> constexpr bool is_trivially_destructible_v |
| 328 | = is_trivially_destructible<T>::value; // C++17 |
| 329 | template <class T, class... Args> constexpr bool is_nothrow_constructible_v |
| 330 | = is_nothrow_constructible<T, Args...>::value; // C++17 |
| 331 | template <class T> constexpr bool is_nothrow_default_constructible_v |
| 332 | = is_nothrow_default_constructible<T>::value; // C++17 |
| 333 | template <class T> constexpr bool is_nothrow_copy_constructible_v |
| 334 | = is_nothrow_copy_constructible<T>::value; // C++17 |
| 335 | template <class T> constexpr bool is_nothrow_move_constructible_v |
| 336 | = is_nothrow_move_constructible<T>::value; // C++17 |
| 337 | template <class T, class U> constexpr bool is_nothrow_assignable_v |
| 338 | = is_nothrow_assignable<T, U>::value; // C++17 |
| 339 | template <class T> constexpr bool is_nothrow_copy_assignable_v |
| 340 | = is_nothrow_copy_assignable<T>::value; // C++17 |
| 341 | template <class T> constexpr bool is_nothrow_move_assignable_v |
| 342 | = is_nothrow_move_assignable<T>::value; // C++17 |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 343 | template <class T, class U> constexpr bool is_nothrow_swappable_with_v |
| 344 | = is_nothrow_swappable_with<T, U>::value; // C++17 |
| 345 | template <class T> constexpr bool is_nothrow_swappable_v |
| 346 | = is_nothrow_swappable<T>::value; // C++17 |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 347 | template <class T> constexpr bool is_nothrow_destructible_v |
| 348 | = is_nothrow_destructible<T>::value; // C++17 |
| 349 | template <class T> constexpr bool has_virtual_destructor_v |
| 350 | = has_virtual_destructor<T>::value; // C++17 |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 351 | |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 352 | // See C++14 20.10.5, type property queries |
| 353 | template <class T> constexpr size_t alignment_of_v |
| 354 | = alignment_of<T>::value; // C++17 |
| 355 | template <class T> constexpr size_t rank_v |
| 356 | = rank<T>::value; // C++17 |
| 357 | template <class T, unsigned I = 0> constexpr size_t extent_v |
| 358 | = extent<T, I>::value; // C++17 |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 359 | |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 360 | // See C++14 20.10.6, type relations |
| 361 | template <class T, class U> constexpr bool is_same_v |
| 362 | = is_same<T, U>::value; // C++17 |
| 363 | template <class Base, class Derived> constexpr bool is_base_of_v |
| 364 | = is_base_of<Base, Derived>::value; // C++17 |
| 365 | template <class From, class To> constexpr bool is_convertible_v |
| 366 | = is_convertible<From, To>::value; // C++17 |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 367 | template <class T, class R = void> constexpr bool is_callable_v |
| 368 | = is_callable<T, R>::value; // C++17 |
| 369 | template <class T, class R = void> constexpr bool is_nothrow_callable_v |
| 370 | = is_nothrow_callable<T, R>::value; // C++17 |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 371 | |
| 372 | // [meta.logical], logical operator traits: |
| 373 | template<class... B> struct conjunction; // C++17 |
| 374 | template<class... B> |
| 375 | constexpr bool conjunction_v = conjunction<B...>::value; // C++17 |
| 376 | template<class... B> struct disjunction; // C++17 |
| 377 | template<class... B> |
| 378 | constexpr bool disjunction_v = disjunction<B...>::value; // C++17 |
| 379 | template<class B> struct negation; // C++17 |
| 380 | template<class B> |
| 381 | constexpr bool negation_v = negation<B>::value; // C++17 |
| 382 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 383 | } |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 384 | |
| 385 | */ |
| 386 | #include <__config> |
| 387 | #include <cstddef> |
| 388 | |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 389 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 390 | #pragma GCC system_header |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 391 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 392 | |
| 393 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 394 | |
Eric Fiselier | 83c9dc1 | 2016-04-15 23:27:27 +0000 | [diff] [blame] | 395 | template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY pair; |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 396 | template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY reference_wrapper; |
Eric Fiselier | 566bcb4 | 2016-04-21 22:54:21 +0000 | [diff] [blame] | 397 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY hash; |
Eric Fiselier | 83c9dc1 | 2016-04-15 23:27:27 +0000 | [diff] [blame] | 398 | |
Eric Fiselier | b7fc49f | 2015-06-13 02:36:07 +0000 | [diff] [blame] | 399 | template <class> |
Marshall Clow | 88aae92 | 2014-11-17 15:50:08 +0000 | [diff] [blame] | 400 | struct __void_t { typedef void type; }; |
Marshall Clow | 88aae92 | 2014-11-17 15:50:08 +0000 | [diff] [blame] | 401 | |
Joerg Sonnenberger | ba865ff | 2015-08-10 16:58:04 +0000 | [diff] [blame] | 402 | template <class _Tp> |
| 403 | struct __identity { typedef _Tp type; }; |
Eric Fiselier | 4983580 | 2015-06-13 08:25:24 +0000 | [diff] [blame] | 404 | |
Eric Fiselier | da1818a | 2015-02-21 02:30:41 +0000 | [diff] [blame] | 405 | template <class _Tp, bool> |
| 406 | struct _LIBCPP_TYPE_VIS_ONLY __dependent_type : public _Tp {}; |
| 407 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 408 | template <bool _Bp, class _If, class _Then> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 409 | struct _LIBCPP_TYPE_VIS_ONLY conditional {typedef _If type;}; |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 410 | template <class _If, class _Then> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 411 | struct _LIBCPP_TYPE_VIS_ONLY conditional<false, _If, _Then> {typedef _Then type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 412 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 413 | #if _LIBCPP_STD_VER > 11 |
| 414 | template <bool _Bp, class _If, class _Then> using conditional_t = typename conditional<_Bp, _If, _Then>::type; |
| 415 | #endif |
| 416 | |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 417 | template <bool, class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __lazy_enable_if {}; |
| 418 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __lazy_enable_if<true, _Tp> {typedef typename _Tp::type type;}; |
| 419 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 420 | template <bool, class _Tp = void> struct _LIBCPP_TYPE_VIS_ONLY enable_if {}; |
| 421 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY enable_if<true, _Tp> {typedef _Tp type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 422 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 423 | #if _LIBCPP_STD_VER > 11 |
| 424 | template <bool _Bp, class _Tp = void> using enable_if_t = typename enable_if<_Bp, _Tp>::type; |
| 425 | #endif |
| 426 | |
Marshall Clow | d18b496 | 2015-12-14 18:02:23 +0000 | [diff] [blame] | 427 | // addressof |
Eric Fiselier | 735026e | 2016-03-17 03:30:56 +0000 | [diff] [blame] | 428 | #if __has_builtin(__builtin_addressof) |
| 429 | |
| 430 | template <class _Tp> |
| 431 | inline _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 432 | _LIBCPP_NO_CFI _LIBCPP_INLINE_VISIBILITY |
| 433 | _Tp* |
| 434 | addressof(_Tp& __x) _NOEXCEPT |
| 435 | { |
| 436 | return __builtin_addressof(__x); |
| 437 | } |
| 438 | |
| 439 | #else |
Marshall Clow | d18b496 | 2015-12-14 18:02:23 +0000 | [diff] [blame] | 440 | |
| 441 | template <class _Tp> |
Evgeniy Stepanov | 2fe62cd | 2016-03-11 23:50:57 +0000 | [diff] [blame] | 442 | inline _LIBCPP_NO_CFI _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | d18b496 | 2015-12-14 18:02:23 +0000 | [diff] [blame] | 443 | _Tp* |
| 444 | addressof(_Tp& __x) _NOEXCEPT |
| 445 | { |
| 446 | return (_Tp*)&reinterpret_cast<const volatile char&>(__x); |
| 447 | } |
| 448 | |
Eric Fiselier | 735026e | 2016-03-17 03:30:56 +0000 | [diff] [blame] | 449 | #endif // __has_builtin(__builtin_addressof) |
| 450 | |
Marshall Clow | d18b496 | 2015-12-14 18:02:23 +0000 | [diff] [blame] | 451 | #if defined(_LIBCPP_HAS_OBJC_ARC) && !defined(_LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF) |
| 452 | // Objective-C++ Automatic Reference Counting uses qualified pointers |
| 453 | // that require special addressof() signatures. When |
| 454 | // _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF is defined, the compiler |
| 455 | // itself is providing these definitions. Otherwise, we provide them. |
| 456 | template <class _Tp> |
| 457 | inline _LIBCPP_INLINE_VISIBILITY |
| 458 | __strong _Tp* |
| 459 | addressof(__strong _Tp& __x) _NOEXCEPT |
| 460 | { |
| 461 | return &__x; |
| 462 | } |
| 463 | |
| 464 | #ifdef _LIBCPP_HAS_OBJC_ARC_WEAK |
| 465 | template <class _Tp> |
| 466 | inline _LIBCPP_INLINE_VISIBILITY |
| 467 | __weak _Tp* |
| 468 | addressof(__weak _Tp& __x) _NOEXCEPT |
| 469 | { |
| 470 | return &__x; |
| 471 | } |
| 472 | #endif |
| 473 | |
| 474 | template <class _Tp> |
| 475 | inline _LIBCPP_INLINE_VISIBILITY |
| 476 | __autoreleasing _Tp* |
| 477 | addressof(__autoreleasing _Tp& __x) _NOEXCEPT |
| 478 | { |
| 479 | return &__x; |
| 480 | } |
| 481 | |
| 482 | template <class _Tp> |
| 483 | inline _LIBCPP_INLINE_VISIBILITY |
| 484 | __unsafe_unretained _Tp* |
| 485 | addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT |
| 486 | { |
| 487 | return &__x; |
| 488 | } |
| 489 | #endif |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 490 | |
Howard Hinnant | 9c0df14 | 2012-10-30 19:06:59 +0000 | [diff] [blame] | 491 | struct __two {char __lx[2];}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 492 | |
| 493 | // helper class: |
| 494 | |
| 495 | template <class _Tp, _Tp __v> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 496 | struct _LIBCPP_TYPE_VIS_ONLY integral_constant |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 497 | { |
Howard Hinnant | 27b4fd3 | 2012-04-02 00:40:41 +0000 | [diff] [blame] | 498 | static _LIBCPP_CONSTEXPR const _Tp value = __v; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 499 | typedef _Tp value_type; |
| 500 | typedef integral_constant type; |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 501 | _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | a2df82b | 2014-02-17 22:18:51 +0000 | [diff] [blame] | 502 | _LIBCPP_CONSTEXPR operator value_type() const _NOEXCEPT {return value;} |
Marshall Clow | d29bb4b | 2013-07-08 20:05:31 +0000 | [diff] [blame] | 503 | #if _LIBCPP_STD_VER > 11 |
| 504 | _LIBCPP_INLINE_VISIBILITY |
Marshall Clow | a2df82b | 2014-02-17 22:18:51 +0000 | [diff] [blame] | 505 | constexpr value_type operator ()() const _NOEXCEPT {return value;} |
Marshall Clow | d29bb4b | 2013-07-08 20:05:31 +0000 | [diff] [blame] | 506 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 507 | }; |
| 508 | |
| 509 | template <class _Tp, _Tp __v> |
Howard Hinnant | 27b4fd3 | 2012-04-02 00:40:41 +0000 | [diff] [blame] | 510 | _LIBCPP_CONSTEXPR const _Tp integral_constant<_Tp, __v>::value; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 511 | |
Marshall Clow | e62560a | 2015-05-18 23:21:06 +0000 | [diff] [blame] | 512 | #if _LIBCPP_STD_VER > 14 |
| 513 | template <bool __b> |
| 514 | using bool_constant = integral_constant<bool, __b>; |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 515 | #define _LIBCPP_BOOL_CONSTANT(__b) bool_constant<(__b)> |
Marshall Clow | e62560a | 2015-05-18 23:21:06 +0000 | [diff] [blame] | 516 | #else |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 517 | #define _LIBCPP_BOOL_CONSTANT(__b) integral_constant<bool,(__b)> |
Marshall Clow | e62560a | 2015-05-18 23:21:06 +0000 | [diff] [blame] | 518 | #endif |
| 519 | |
| 520 | typedef _LIBCPP_BOOL_CONSTANT(true) true_type; |
| 521 | typedef _LIBCPP_BOOL_CONSTANT(false) false_type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 522 | |
Eric Fiselier | cae4cab | 2015-08-31 03:50:31 +0000 | [diff] [blame] | 523 | #if !defined(_LIBCPP_HAS_NO_VARIADICS) |
| 524 | |
| 525 | // __lazy_and |
| 526 | |
| 527 | template <bool _Last, class ..._Preds> |
| 528 | struct __lazy_and_impl; |
| 529 | |
| 530 | template <class ..._Preds> |
| 531 | struct __lazy_and_impl<false, _Preds...> : false_type {}; |
| 532 | |
| 533 | template <> |
| 534 | struct __lazy_and_impl<true> : true_type {}; |
| 535 | |
| 536 | template <class _Pred> |
| 537 | struct __lazy_and_impl<true, _Pred> : integral_constant<bool, _Pred::type::value> {}; |
| 538 | |
| 539 | template <class _Hp, class ..._Tp> |
| 540 | struct __lazy_and_impl<true, _Hp, _Tp...> : __lazy_and_impl<_Hp::type::value, _Tp...> {}; |
| 541 | |
| 542 | template <class _P1, class ..._Pr> |
| 543 | struct __lazy_and : __lazy_and_impl<_P1::type::value, _Pr...> {}; |
| 544 | |
| 545 | // __lazy_or |
| 546 | |
| 547 | template <bool _List, class ..._Preds> |
| 548 | struct __lazy_or_impl; |
| 549 | |
| 550 | template <class ..._Preds> |
| 551 | struct __lazy_or_impl<true, _Preds...> : true_type {}; |
| 552 | |
| 553 | template <> |
| 554 | struct __lazy_or_impl<false> : false_type {}; |
| 555 | |
| 556 | template <class _Hp, class ..._Tp> |
| 557 | struct __lazy_or_impl<false, _Hp, _Tp...> |
| 558 | : __lazy_or_impl<_Hp::type::value, _Tp...> {}; |
| 559 | |
| 560 | template <class _P1, class ..._Pr> |
| 561 | struct __lazy_or : __lazy_or_impl<_P1::type::value, _Pr...> {}; |
| 562 | |
| 563 | // __lazy_not |
| 564 | |
| 565 | template <class _Pred> |
| 566 | struct __lazy_not : integral_constant<bool, !_Pred::type::value> {}; |
| 567 | |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 568 | // __and_ |
| 569 | template<class...> struct __and_; |
| 570 | template<> struct __and_<> : true_type {}; |
| 571 | |
| 572 | template<class _B0> struct __and_<_B0> : _B0 {}; |
| 573 | |
| 574 | template<class _B0, class _B1> |
| 575 | struct __and_<_B0, _B1> : conditional<_B0::value, _B1, _B0>::type {}; |
| 576 | |
| 577 | template<class _B0, class _B1, class _B2, class... _Bn> |
| 578 | struct __and_<_B0, _B1, _B2, _Bn...> |
| 579 | : conditional<_B0::value, __and_<_B1, _B2, _Bn...>, _B0>::type {}; |
| 580 | |
| 581 | // __or_ |
| 582 | template<class...> struct __or_; |
| 583 | template<> struct __or_<> : false_type {}; |
| 584 | |
| 585 | template<class _B0> struct __or_<_B0> : _B0 {}; |
| 586 | |
| 587 | template<class _B0, class _B1> |
| 588 | struct __or_<_B0, _B1> : conditional<_B0::value, _B0, _B1>::type {}; |
| 589 | |
| 590 | template<class _B0, class _B1, class _B2, class... _Bn> |
| 591 | struct __or_<_B0, _B1, _B2, _Bn...> |
| 592 | : conditional<_B0::value, _B0, __or_<_B1, _B2, _Bn...> >::type {}; |
| 593 | |
| 594 | // __not_ |
| 595 | template<class _Tp> |
| 596 | struct __not_ : conditional<_Tp::value, false_type, true_type>::type {}; |
| 597 | |
Eric Fiselier | cae4cab | 2015-08-31 03:50:31 +0000 | [diff] [blame] | 598 | #endif // !defined(_LIBCPP_HAS_NO_VARIADICS) |
| 599 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 600 | // is_const |
| 601 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 602 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const : public false_type {}; |
| 603 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const<_Tp const> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 604 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 605 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 606 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_const_v |
| 607 | = is_const<_Tp>::value; |
| 608 | #endif |
| 609 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 610 | // is_volatile |
| 611 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 612 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile : public false_type {}; |
| 613 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile<_Tp volatile> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 614 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 615 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 616 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_volatile_v |
| 617 | = is_volatile<_Tp>::value; |
| 618 | #endif |
| 619 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 620 | // remove_const |
| 621 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 622 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const {typedef _Tp type;}; |
| 623 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const<const _Tp> {typedef _Tp type;}; |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 624 | #if _LIBCPP_STD_VER > 11 |
| 625 | template <class _Tp> using remove_const_t = typename remove_const<_Tp>::type; |
| 626 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 627 | |
| 628 | // remove_volatile |
| 629 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 630 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile {typedef _Tp type;}; |
| 631 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile<volatile _Tp> {typedef _Tp type;}; |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 632 | #if _LIBCPP_STD_VER > 11 |
| 633 | template <class _Tp> using remove_volatile_t = typename remove_volatile<_Tp>::type; |
| 634 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 635 | |
| 636 | // remove_cv |
| 637 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 638 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_cv |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 639 | {typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;}; |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 640 | #if _LIBCPP_STD_VER > 11 |
| 641 | template <class _Tp> using remove_cv_t = typename remove_cv<_Tp>::type; |
| 642 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 643 | |
| 644 | // is_void |
| 645 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 646 | template <class _Tp> struct __libcpp_is_void : public false_type {}; |
| 647 | template <> struct __libcpp_is_void<void> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 648 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 649 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_void |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 650 | : public __libcpp_is_void<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 651 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 652 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 653 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_void_v |
| 654 | = is_void<_Tp>::value; |
| 655 | #endif |
| 656 | |
Howard Hinnant | 6e5e7e7 | 2011-03-09 17:17:06 +0000 | [diff] [blame] | 657 | // __is_nullptr_t |
| 658 | |
Marshall Clow | 0ea7f8c | 2014-01-06 14:00:09 +0000 | [diff] [blame] | 659 | template <class _Tp> struct __is_nullptr_t_impl : public false_type {}; |
| 660 | template <> struct __is_nullptr_t_impl<nullptr_t> : public true_type {}; |
Howard Hinnant | 6e5e7e7 | 2011-03-09 17:17:06 +0000 | [diff] [blame] | 661 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 662 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __is_nullptr_t |
Marshall Clow | 0ea7f8c | 2014-01-06 14:00:09 +0000 | [diff] [blame] | 663 | : public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | 6e5e7e7 | 2011-03-09 17:17:06 +0000 | [diff] [blame] | 664 | |
Marshall Clow | 79d8c99 | 2013-10-05 21:21:17 +0000 | [diff] [blame] | 665 | #if _LIBCPP_STD_VER > 11 |
| 666 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_null_pointer |
Marshall Clow | 0ea7f8c | 2014-01-06 14:00:09 +0000 | [diff] [blame] | 667 | : public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {}; |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 668 | |
| 669 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 670 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_null_pointer_v |
| 671 | = is_null_pointer<_Tp>::value; |
| 672 | #endif |
Marshall Clow | 79d8c99 | 2013-10-05 21:21:17 +0000 | [diff] [blame] | 673 | #endif |
| 674 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 675 | // is_integral |
| 676 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 677 | template <class _Tp> struct __libcpp_is_integral : public false_type {}; |
| 678 | template <> struct __libcpp_is_integral<bool> : public true_type {}; |
| 679 | template <> struct __libcpp_is_integral<char> : public true_type {}; |
| 680 | template <> struct __libcpp_is_integral<signed char> : public true_type {}; |
| 681 | template <> struct __libcpp_is_integral<unsigned char> : public true_type {}; |
| 682 | template <> struct __libcpp_is_integral<wchar_t> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 683 | #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 684 | template <> struct __libcpp_is_integral<char16_t> : public true_type {}; |
| 685 | template <> struct __libcpp_is_integral<char32_t> : public true_type {}; |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 686 | #endif // _LIBCPP_HAS_NO_UNICODE_CHARS |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 687 | template <> struct __libcpp_is_integral<short> : public true_type {}; |
| 688 | template <> struct __libcpp_is_integral<unsigned short> : public true_type {}; |
| 689 | template <> struct __libcpp_is_integral<int> : public true_type {}; |
| 690 | template <> struct __libcpp_is_integral<unsigned int> : public true_type {}; |
| 691 | template <> struct __libcpp_is_integral<long> : public true_type {}; |
| 692 | template <> struct __libcpp_is_integral<unsigned long> : public true_type {}; |
| 693 | template <> struct __libcpp_is_integral<long long> : public true_type {}; |
| 694 | template <> struct __libcpp_is_integral<unsigned long long> : public true_type {}; |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 695 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 696 | template <> struct __libcpp_is_integral<__int128_t> : public true_type {}; |
| 697 | template <> struct __libcpp_is_integral<__uint128_t> : public true_type {}; |
| 698 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 699 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 700 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_integral |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 701 | : public __libcpp_is_integral<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 702 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 703 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 704 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_integral_v |
| 705 | = is_integral<_Tp>::value; |
| 706 | #endif |
| 707 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 708 | // is_floating_point |
| 709 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 710 | template <class _Tp> struct __libcpp_is_floating_point : public false_type {}; |
| 711 | template <> struct __libcpp_is_floating_point<float> : public true_type {}; |
| 712 | template <> struct __libcpp_is_floating_point<double> : public true_type {}; |
| 713 | template <> struct __libcpp_is_floating_point<long double> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 714 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 715 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_floating_point |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 716 | : public __libcpp_is_floating_point<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 717 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 718 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 719 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_floating_point_v |
| 720 | = is_floating_point<_Tp>::value; |
| 721 | #endif |
| 722 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 723 | // is_array |
| 724 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 725 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 726 | : public false_type {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 727 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 728 | : public true_type {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 729 | template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[_Np]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 730 | : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 731 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 732 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 733 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_array_v |
| 734 | = is_array<_Tp>::value; |
| 735 | #endif |
| 736 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 737 | // is_pointer |
| 738 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 739 | template <class _Tp> struct __libcpp_is_pointer : public false_type {}; |
| 740 | template <class _Tp> struct __libcpp_is_pointer<_Tp*> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 741 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 742 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pointer |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 743 | : public __libcpp_is_pointer<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 744 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 745 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 746 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_pointer_v |
| 747 | = is_pointer<_Tp>::value; |
| 748 | #endif |
| 749 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 750 | // is_reference |
| 751 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 752 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference : public false_type {}; |
| 753 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference<_Tp&> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 754 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 755 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference : public false_type {}; |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 756 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 757 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference<_Tp&&> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 758 | #endif |
| 759 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 760 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference : public false_type {}; |
| 761 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&> : public true_type {}; |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 762 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 763 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&&> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 764 | #endif |
| 765 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 766 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 767 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_reference_v |
| 768 | = is_reference<_Tp>::value; |
| 769 | |
| 770 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_lvalue_reference_v |
| 771 | = is_lvalue_reference<_Tp>::value; |
| 772 | |
| 773 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_rvalue_reference_v |
| 774 | = is_rvalue_reference<_Tp>::value; |
| 775 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 776 | // is_union |
| 777 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 778 | #if __has_feature(is_union) || (_GNUC_VER >= 403) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 779 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 780 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 781 | : public integral_constant<bool, __is_union(_Tp)> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 782 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 783 | #else |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 784 | |
| 785 | template <class _Tp> struct __libcpp_union : public false_type {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 786 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 787 | : public __libcpp_union<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 788 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 789 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 790 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 791 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 792 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_union_v |
| 793 | = is_union<_Tp>::value; |
| 794 | #endif |
| 795 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 796 | // is_class |
| 797 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 798 | #if __has_feature(is_class) || (_GNUC_VER >= 403) |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 799 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 800 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 801 | : public integral_constant<bool, __is_class(_Tp)> {}; |
| 802 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 803 | #else |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 804 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 805 | namespace __is_class_imp |
| 806 | { |
| 807 | template <class _Tp> char __test(int _Tp::*); |
| 808 | template <class _Tp> __two __test(...); |
| 809 | } |
| 810 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 811 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 812 | : public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {}; |
| 813 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 814 | #endif |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 815 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 816 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 817 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_class_v |
| 818 | = is_class<_Tp>::value; |
| 819 | #endif |
| 820 | |
Howard Hinnant | d737382 | 2011-06-01 17:25:11 +0000 | [diff] [blame] | 821 | // is_same |
| 822 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 823 | template <class _Tp, class _Up> struct _LIBCPP_TYPE_VIS_ONLY is_same : public false_type {}; |
| 824 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_same<_Tp, _Tp> : public true_type {}; |
Howard Hinnant | d737382 | 2011-06-01 17:25:11 +0000 | [diff] [blame] | 825 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 826 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 827 | template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_same_v |
| 828 | = is_same<_Tp, _Up>::value; |
| 829 | #endif |
| 830 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 831 | // is_function |
| 832 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 833 | namespace __libcpp_is_function_imp |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 834 | { |
Eric Fiselier | 89465dc | 2015-02-18 16:31:46 +0000 | [diff] [blame] | 835 | struct __dummy_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 836 | template <class _Tp> char __test(_Tp*); |
Eric Fiselier | 89465dc | 2015-02-18 16:31:46 +0000 | [diff] [blame] | 837 | template <class _Tp> char __test(__dummy_type); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 838 | template <class _Tp> __two __test(...); |
Eric Fiselier | 89465dc | 2015-02-18 16:31:46 +0000 | [diff] [blame] | 839 | template <class _Tp> _Tp& __source(int); |
| 840 | template <class _Tp> __dummy_type __source(...); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | template <class _Tp, bool = is_class<_Tp>::value || |
| 844 | is_union<_Tp>::value || |
| 845 | is_void<_Tp>::value || |
Howard Hinnant | d737382 | 2011-06-01 17:25:11 +0000 | [diff] [blame] | 846 | is_reference<_Tp>::value || |
Marshall Clow | 79d8c99 | 2013-10-05 21:21:17 +0000 | [diff] [blame] | 847 | __is_nullptr_t<_Tp>::value > |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 848 | struct __libcpp_is_function |
Eric Fiselier | 89465dc | 2015-02-18 16:31:46 +0000 | [diff] [blame] | 849 | : public integral_constant<bool, sizeof(__libcpp_is_function_imp::__test<_Tp>(__libcpp_is_function_imp::__source<_Tp>(0))) == 1> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 850 | {}; |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 851 | template <class _Tp> struct __libcpp_is_function<_Tp, true> : public false_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 852 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 853 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_function |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 854 | : public __libcpp_is_function<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 855 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 856 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 857 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_function_v |
| 858 | = is_function<_Tp>::value; |
| 859 | #endif |
| 860 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 861 | // is_member_function_pointer |
| 862 | |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 863 | // template <class _Tp> struct __libcpp_is_member_function_pointer : public false_type {}; |
| 864 | // template <class _Tp, class _Up> struct __libcpp_is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {}; |
| 865 | // |
| 866 | |
Nick Lewycky | e1be30b | 2015-07-29 22:38:23 +0000 | [diff] [blame] | 867 | template <class _MP, bool _IsMemberFunctionPtr, bool _IsMemberObjectPtr> |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 868 | struct __member_pointer_traits_imp |
| 869 | { // forward declaration; specializations later |
| 870 | }; |
| 871 | |
| 872 | |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 873 | template <class _Tp> struct __libcpp_is_member_function_pointer |
Eric Fiselier | 724b5ab | 2015-06-13 00:33:13 +0000 | [diff] [blame] | 874 | : public false_type {}; |
| 875 | |
| 876 | template <class _Ret, class _Class> |
| 877 | struct __libcpp_is_member_function_pointer<_Ret _Class::*> |
| 878 | : public is_function<_Ret> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 879 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 880 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_function_pointer |
Eric Fiselier | 724b5ab | 2015-06-13 00:33:13 +0000 | [diff] [blame] | 881 | : public __libcpp_is_member_function_pointer<typename remove_cv<_Tp>::type>::type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 882 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 883 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 884 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_function_pointer_v |
| 885 | = is_member_function_pointer<_Tp>::value; |
| 886 | #endif |
| 887 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 888 | // is_member_pointer |
| 889 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 890 | template <class _Tp> struct __libcpp_is_member_pointer : public false_type {}; |
| 891 | template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> : public true_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 892 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 893 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_pointer |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 894 | : public __libcpp_is_member_pointer<typename remove_cv<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 895 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 896 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 897 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_pointer_v |
| 898 | = is_member_pointer<_Tp>::value; |
| 899 | #endif |
| 900 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 901 | // is_member_object_pointer |
| 902 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 903 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_object_pointer |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 904 | : public integral_constant<bool, is_member_pointer<_Tp>::value && |
| 905 | !is_member_function_pointer<_Tp>::value> {}; |
| 906 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 907 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 908 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_object_pointer_v |
| 909 | = is_member_object_pointer<_Tp>::value; |
| 910 | #endif |
| 911 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 912 | // is_enum |
| 913 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 914 | #if __has_feature(is_enum) || (_GNUC_VER >= 403) |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 915 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 916 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 917 | : public integral_constant<bool, __is_enum(_Tp)> {}; |
| 918 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 919 | #else |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 920 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 921 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 922 | : public integral_constant<bool, !is_void<_Tp>::value && |
| 923 | !is_integral<_Tp>::value && |
| 924 | !is_floating_point<_Tp>::value && |
| 925 | !is_array<_Tp>::value && |
| 926 | !is_pointer<_Tp>::value && |
| 927 | !is_reference<_Tp>::value && |
| 928 | !is_member_pointer<_Tp>::value && |
| 929 | !is_union<_Tp>::value && |
| 930 | !is_class<_Tp>::value && |
| 931 | !is_function<_Tp>::value > {}; |
| 932 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 933 | #endif |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 934 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 935 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 936 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_enum_v |
| 937 | = is_enum<_Tp>::value; |
| 938 | #endif |
| 939 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 940 | // is_arithmetic |
| 941 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 942 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_arithmetic |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 943 | : public integral_constant<bool, is_integral<_Tp>::value || |
| 944 | is_floating_point<_Tp>::value> {}; |
| 945 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 946 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 947 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_arithmetic_v |
| 948 | = is_arithmetic<_Tp>::value; |
| 949 | #endif |
| 950 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 951 | // is_fundamental |
| 952 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 953 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_fundamental |
Howard Hinnant | 6e5e7e7 | 2011-03-09 17:17:06 +0000 | [diff] [blame] | 954 | : public integral_constant<bool, is_void<_Tp>::value || |
| 955 | __is_nullptr_t<_Tp>::value || |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 956 | is_arithmetic<_Tp>::value> {}; |
| 957 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 958 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 959 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_fundamental_v |
| 960 | = is_fundamental<_Tp>::value; |
| 961 | #endif |
| 962 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 963 | // is_scalar |
| 964 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 965 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_scalar |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 966 | : public integral_constant<bool, is_arithmetic<_Tp>::value || |
| 967 | is_member_pointer<_Tp>::value || |
| 968 | is_pointer<_Tp>::value || |
Howard Hinnant | 6e5e7e7 | 2011-03-09 17:17:06 +0000 | [diff] [blame] | 969 | __is_nullptr_t<_Tp>::value || |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 970 | is_enum<_Tp>::value > {}; |
| 971 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 972 | template <> struct _LIBCPP_TYPE_VIS_ONLY is_scalar<nullptr_t> : public true_type {}; |
Howard Hinnant | 5885da3 | 2011-03-09 15:10:51 +0000 | [diff] [blame] | 973 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 974 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 975 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_scalar_v |
| 976 | = is_scalar<_Tp>::value; |
| 977 | #endif |
| 978 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 979 | // is_object |
| 980 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 981 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_object |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 982 | : public integral_constant<bool, is_scalar<_Tp>::value || |
| 983 | is_array<_Tp>::value || |
| 984 | is_union<_Tp>::value || |
| 985 | is_class<_Tp>::value > {}; |
| 986 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 987 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 988 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_object_v |
| 989 | = is_object<_Tp>::value; |
| 990 | #endif |
| 991 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 992 | // is_compound |
| 993 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 994 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_compound |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 995 | : public integral_constant<bool, !is_fundamental<_Tp>::value> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 996 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 997 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 998 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_compound_v |
| 999 | = is_compound<_Tp>::value; |
| 1000 | #endif |
| 1001 | |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1002 | |
| 1003 | // __is_referenceable [defns.referenceable] |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1004 | |
Marshall Clow | d812865 | 2016-02-22 22:13:03 +0000 | [diff] [blame] | 1005 | struct __is_referenceable_impl { |
| 1006 | template <class _Tp> static _Tp& __test(int); |
| 1007 | template <class _Tp> static __two __test(...); |
| 1008 | }; |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1009 | |
Marshall Clow | d812865 | 2016-02-22 22:13:03 +0000 | [diff] [blame] | 1010 | template <class _Tp> |
Eric Fiselier | 14273e8 | 2016-05-18 23:09:24 +0000 | [diff] [blame] | 1011 | struct __is_referenceable : integral_constant<bool, |
| 1012 | !is_same<decltype(__is_referenceable_impl::__test<_Tp>(0)), __two>::value> {}; |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1013 | |
| 1014 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1015 | // add_const |
| 1016 | |
| 1017 | template <class _Tp, bool = is_reference<_Tp>::value || |
| 1018 | is_function<_Tp>::value || |
| 1019 | is_const<_Tp>::value > |
| 1020 | struct __add_const {typedef _Tp type;}; |
| 1021 | |
| 1022 | template <class _Tp> |
| 1023 | struct __add_const<_Tp, false> {typedef const _Tp type;}; |
| 1024 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1025 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_const |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1026 | {typedef typename __add_const<_Tp>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1027 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1028 | #if _LIBCPP_STD_VER > 11 |
| 1029 | template <class _Tp> using add_const_t = typename add_const<_Tp>::type; |
| 1030 | #endif |
| 1031 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1032 | // add_volatile |
| 1033 | |
| 1034 | template <class _Tp, bool = is_reference<_Tp>::value || |
| 1035 | is_function<_Tp>::value || |
| 1036 | is_volatile<_Tp>::value > |
| 1037 | struct __add_volatile {typedef _Tp type;}; |
| 1038 | |
| 1039 | template <class _Tp> |
| 1040 | struct __add_volatile<_Tp, false> {typedef volatile _Tp type;}; |
| 1041 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1042 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_volatile |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1043 | {typedef typename __add_volatile<_Tp>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1044 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1045 | #if _LIBCPP_STD_VER > 11 |
| 1046 | template <class _Tp> using add_volatile_t = typename add_volatile<_Tp>::type; |
| 1047 | #endif |
| 1048 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1049 | // add_cv |
| 1050 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1051 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_cv |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1052 | {typedef typename add_const<typename add_volatile<_Tp>::type>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1053 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1054 | #if _LIBCPP_STD_VER > 11 |
| 1055 | template <class _Tp> using add_cv_t = typename add_cv<_Tp>::type; |
| 1056 | #endif |
| 1057 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1058 | // remove_reference |
| 1059 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1060 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference {typedef _Tp type;}; |
| 1061 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&> {typedef _Tp type;}; |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 1062 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1063 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&&> {typedef _Tp type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1064 | #endif |
| 1065 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1066 | #if _LIBCPP_STD_VER > 11 |
| 1067 | template <class _Tp> using remove_reference_t = typename remove_reference<_Tp>::type; |
| 1068 | #endif |
| 1069 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1070 | // add_lvalue_reference |
| 1071 | |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1072 | template <class _Tp, bool = __is_referenceable<_Tp>::value> struct __add_lvalue_reference_impl { typedef _Tp type; }; |
| 1073 | template <class _Tp > struct __add_lvalue_reference_impl<_Tp, true> { typedef _Tp& type; }; |
| 1074 | |
| 1075 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference |
| 1076 | {typedef typename __add_lvalue_reference_impl<_Tp>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1077 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1078 | #if _LIBCPP_STD_VER > 11 |
| 1079 | template <class _Tp> using add_lvalue_reference_t = typename add_lvalue_reference<_Tp>::type; |
| 1080 | #endif |
| 1081 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 1082 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1083 | |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1084 | template <class _Tp, bool = __is_referenceable<_Tp>::value> struct __add_rvalue_reference_impl { typedef _Tp type; }; |
| 1085 | template <class _Tp > struct __add_rvalue_reference_impl<_Tp, true> { typedef _Tp&& type; }; |
| 1086 | |
| 1087 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference |
| 1088 | {typedef typename __add_rvalue_reference_impl<_Tp>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1089 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1090 | #if _LIBCPP_STD_VER > 11 |
| 1091 | template <class _Tp> using add_rvalue_reference_t = typename add_rvalue_reference<_Tp>::type; |
| 1092 | #endif |
| 1093 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 1094 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1095 | |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1096 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1097 | |
Eric Fiselier | 7995c48 | 2016-05-18 22:23:46 +0000 | [diff] [blame] | 1098 | template <class _Tp> _Tp&& __declval(int); |
| 1099 | template <class _Tp> _Tp __declval(long); |
| 1100 | |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1101 | template <class _Tp> |
Eric Fiselier | 7995c48 | 2016-05-18 22:23:46 +0000 | [diff] [blame] | 1102 | decltype(_VSTD::__declval<_Tp>(0)) |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 1103 | declval() _NOEXCEPT; |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1104 | |
| 1105 | #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1106 | |
| 1107 | template <class _Tp> |
| 1108 | typename add_lvalue_reference<_Tp>::type |
| 1109 | declval(); |
| 1110 | |
| 1111 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1112 | |
Eric Fiselier | 219d4ef | 2016-01-22 06:25:47 +0000 | [diff] [blame] | 1113 | // __uncvref |
| 1114 | |
| 1115 | template <class _Tp> |
| 1116 | struct __uncvref { |
| 1117 | typedef typename remove_cv<typename remove_reference<_Tp>::type>::type type; |
| 1118 | }; |
| 1119 | |
Eric Fiselier | 8b15aee | 2016-03-16 20:32:07 +0000 | [diff] [blame] | 1120 | template <class _Tp> |
| 1121 | struct __unconstref { |
| 1122 | typedef typename remove_const<typename remove_reference<_Tp>::type>::type type; |
| 1123 | }; |
| 1124 | |
Eric Fiselier | 2960ae2 | 2016-02-11 11:59:44 +0000 | [diff] [blame] | 1125 | // __is_same_uncvref |
| 1126 | |
| 1127 | template <class _Tp, class _Up> |
| 1128 | struct __is_same_uncvref : is_same<typename __uncvref<_Tp>::type, |
| 1129 | typename __uncvref<_Up>::type> {}; |
| 1130 | |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1131 | struct __any |
| 1132 | { |
| 1133 | __any(...); |
| 1134 | }; |
| 1135 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1136 | // remove_pointer |
| 1137 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1138 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer {typedef _Tp type;}; |
| 1139 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp*> {typedef _Tp type;}; |
| 1140 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const> {typedef _Tp type;}; |
| 1141 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* volatile> {typedef _Tp type;}; |
| 1142 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const volatile> {typedef _Tp type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1143 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1144 | #if _LIBCPP_STD_VER > 11 |
| 1145 | template <class _Tp> using remove_pointer_t = typename remove_pointer<_Tp>::type; |
| 1146 | #endif |
| 1147 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1148 | // add_pointer |
| 1149 | |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1150 | template <class _Tp, |
| 1151 | bool = __is_referenceable<_Tp>::value || |
| 1152 | is_same<typename remove_cv<_Tp>::type, void>::value> |
| 1153 | struct __add_pointer_impl |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1154 | {typedef typename remove_reference<_Tp>::type* type;}; |
Marshall Clow | 7a7960f | 2016-01-21 18:22:43 +0000 | [diff] [blame] | 1155 | template <class _Tp> struct __add_pointer_impl<_Tp, false> |
| 1156 | {typedef _Tp type;}; |
| 1157 | |
| 1158 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_pointer |
| 1159 | {typedef typename __add_pointer_impl<_Tp>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1160 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1161 | #if _LIBCPP_STD_VER > 11 |
| 1162 | template <class _Tp> using add_pointer_t = typename add_pointer<_Tp>::type; |
| 1163 | #endif |
| 1164 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1165 | // is_signed |
| 1166 | |
| 1167 | template <class _Tp, bool = is_integral<_Tp>::value> |
Marshall Clow | e62560a | 2015-05-18 23:21:06 +0000 | [diff] [blame] | 1168 | struct __libcpp_is_signed_impl : public _LIBCPP_BOOL_CONSTANT(_Tp(-1) < _Tp(0)) {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1169 | |
| 1170 | template <class _Tp> |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1171 | struct __libcpp_is_signed_impl<_Tp, false> : public true_type {}; // floating point |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1172 | |
| 1173 | template <class _Tp, bool = is_arithmetic<_Tp>::value> |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1174 | struct __libcpp_is_signed : public __libcpp_is_signed_impl<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1175 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1176 | template <class _Tp> struct __libcpp_is_signed<_Tp, false> : public false_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1177 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1178 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_signed : public __libcpp_is_signed<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1179 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 1180 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1181 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_signed_v |
| 1182 | = is_signed<_Tp>::value; |
| 1183 | #endif |
| 1184 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1185 | // is_unsigned |
| 1186 | |
| 1187 | template <class _Tp, bool = is_integral<_Tp>::value> |
Marshall Clow | e62560a | 2015-05-18 23:21:06 +0000 | [diff] [blame] | 1188 | struct __libcpp_is_unsigned_impl : public _LIBCPP_BOOL_CONSTANT(_Tp(0) < _Tp(-1)) {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1189 | |
| 1190 | template <class _Tp> |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1191 | struct __libcpp_is_unsigned_impl<_Tp, false> : public false_type {}; // floating point |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1192 | |
| 1193 | template <class _Tp, bool = is_arithmetic<_Tp>::value> |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1194 | struct __libcpp_is_unsigned : public __libcpp_is_unsigned_impl<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1195 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1196 | template <class _Tp> struct __libcpp_is_unsigned<_Tp, false> : public false_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1197 | |
Marshall Clow | 8896ac3 | 2014-01-14 05:13:45 +0000 | [diff] [blame] | 1198 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_unsigned : public __libcpp_is_unsigned<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1199 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 1200 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1201 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_unsigned_v |
| 1202 | = is_unsigned<_Tp>::value; |
| 1203 | #endif |
| 1204 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1205 | // rank |
| 1206 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1207 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1208 | : public integral_constant<size_t, 0> {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1209 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1210 | : public integral_constant<size_t, rank<_Tp>::value + 1> {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1211 | template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[_Np]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1212 | : public integral_constant<size_t, rank<_Tp>::value + 1> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1213 | |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1214 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
Marshall Clow | ea97290 | 2015-11-30 05:20:00 +0000 | [diff] [blame] | 1215 | template <class _Tp> _LIBCPP_CONSTEXPR size_t rank_v |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1216 | = rank<_Tp>::value; |
| 1217 | #endif |
| 1218 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1219 | // extent |
| 1220 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1221 | template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TYPE_VIS_ONLY extent |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1222 | : public integral_constant<size_t, 0> {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1223 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], 0> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1224 | : public integral_constant<size_t, 0> {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1225 | template <class _Tp, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], _Ip> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1226 | : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1227 | template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], 0> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1228 | : public integral_constant<size_t, _Np> {}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1229 | template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], _Ip> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1230 | : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1231 | |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1232 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
Marshall Clow | ea97290 | 2015-11-30 05:20:00 +0000 | [diff] [blame] | 1233 | template <class _Tp, unsigned _Ip = 0> _LIBCPP_CONSTEXPR size_t extent_v |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1234 | = extent<_Tp, _Ip>::value; |
| 1235 | #endif |
| 1236 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1237 | // remove_extent |
| 1238 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1239 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1240 | {typedef _Tp type;}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1241 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1242 | {typedef _Tp type;}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1243 | template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[_Np]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1244 | {typedef _Tp type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1245 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1246 | #if _LIBCPP_STD_VER > 11 |
| 1247 | template <class _Tp> using remove_extent_t = typename remove_extent<_Tp>::type; |
| 1248 | #endif |
| 1249 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1250 | // remove_all_extents |
| 1251 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1252 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1253 | {typedef _Tp type;}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1254 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1255 | {typedef typename remove_all_extents<_Tp>::type type;}; |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1256 | template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[_Np]> |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1257 | {typedef typename remove_all_extents<_Tp>::type type;}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1258 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1259 | #if _LIBCPP_STD_VER > 11 |
| 1260 | template <class _Tp> using remove_all_extents_t = typename remove_all_extents<_Tp>::type; |
| 1261 | #endif |
| 1262 | |
Marshall Clow | dab89a1 | 2013-10-07 23:43:33 +0000 | [diff] [blame] | 1263 | // decay |
| 1264 | |
| 1265 | template <class _Tp> |
| 1266 | struct _LIBCPP_TYPE_VIS_ONLY decay |
| 1267 | { |
| 1268 | private: |
| 1269 | typedef typename remove_reference<_Tp>::type _Up; |
| 1270 | public: |
| 1271 | typedef typename conditional |
| 1272 | < |
| 1273 | is_array<_Up>::value, |
| 1274 | typename remove_extent<_Up>::type*, |
| 1275 | typename conditional |
| 1276 | < |
| 1277 | is_function<_Up>::value, |
| 1278 | typename add_pointer<_Up>::type, |
| 1279 | typename remove_cv<_Up>::type |
| 1280 | >::type |
| 1281 | >::type type; |
| 1282 | }; |
| 1283 | |
| 1284 | #if _LIBCPP_STD_VER > 11 |
| 1285 | template <class _Tp> using decay_t = typename decay<_Tp>::type; |
| 1286 | #endif |
| 1287 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1288 | // is_abstract |
| 1289 | |
| 1290 | namespace __is_abstract_imp |
| 1291 | { |
| 1292 | template <class _Tp> char __test(_Tp (*)[1]); |
| 1293 | template <class _Tp> __two __test(...); |
| 1294 | } |
| 1295 | |
| 1296 | template <class _Tp, bool = is_class<_Tp>::value> |
| 1297 | struct __libcpp_abstract : public integral_constant<bool, sizeof(__is_abstract_imp::__test<_Tp>(0)) != 1> {}; |
| 1298 | |
| 1299 | template <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {}; |
| 1300 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1301 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_abstract : public __libcpp_abstract<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1302 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 1303 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1304 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_abstract_v |
| 1305 | = is_abstract<_Tp>::value; |
| 1306 | #endif |
| 1307 | |
Marshall Clow | ebd6c2b | 2014-03-05 03:39:25 +0000 | [diff] [blame] | 1308 | // is_final |
| 1309 | |
Eric Fiselier | 3a0e430 | 2015-06-13 07:08:02 +0000 | [diff] [blame] | 1310 | #if defined(_LIBCPP_HAS_IS_FINAL) |
| 1311 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY |
| 1312 | __libcpp_is_final : public integral_constant<bool, __is_final(_Tp)> {}; |
| 1313 | #else |
| 1314 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY |
| 1315 | __libcpp_is_final : public false_type {}; |
| 1316 | #endif |
| 1317 | |
| 1318 | #if defined(_LIBCPP_HAS_IS_FINAL) && _LIBCPP_STD_VER > 11 |
| 1319 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY |
Marshall Clow | ebd6c2b | 2014-03-05 03:39:25 +0000 | [diff] [blame] | 1320 | is_final : public integral_constant<bool, __is_final(_Tp)> {}; |
| 1321 | #endif |
| 1322 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 1323 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1324 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_final_v |
| 1325 | = is_final<_Tp>::value; |
| 1326 | #endif |
| 1327 | |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1328 | // is_base_of |
| 1329 | |
Howard Hinnant | e9df0a5 | 2013-08-01 18:17:34 +0000 | [diff] [blame] | 1330 | #ifdef _LIBCPP_HAS_IS_BASE_OF |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1331 | |
| 1332 | template <class _Bp, class _Dp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1333 | struct _LIBCPP_TYPE_VIS_ONLY is_base_of |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1334 | : public integral_constant<bool, __is_base_of(_Bp, _Dp)> {}; |
| 1335 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 1336 | #else // _LIBCPP_HAS_IS_BASE_OF |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1337 | |
Richard Smith | b2f2b68 | 2012-12-20 04:20:28 +0000 | [diff] [blame] | 1338 | namespace __is_base_of_imp |
| 1339 | { |
| 1340 | template <class _Tp> |
| 1341 | struct _Dst |
| 1342 | { |
| 1343 | _Dst(const volatile _Tp &); |
| 1344 | }; |
| 1345 | template <class _Tp> |
| 1346 | struct _Src |
| 1347 | { |
| 1348 | operator const volatile _Tp &(); |
| 1349 | template <class _Up> operator const _Dst<_Up> &(); |
| 1350 | }; |
| 1351 | template <size_t> struct __one { typedef char type; }; |
| 1352 | template <class _Bp, class _Dp> typename __one<sizeof(_Dst<_Bp>(declval<_Src<_Dp> >()))>::type __test(int); |
| 1353 | template <class _Bp, class _Dp> __two __test(...); |
| 1354 | } |
| 1355 | |
| 1356 | template <class _Bp, class _Dp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1357 | struct _LIBCPP_TYPE_VIS_ONLY is_base_of |
Richard Smith | b2f2b68 | 2012-12-20 04:20:28 +0000 | [diff] [blame] | 1358 | : public integral_constant<bool, is_class<_Bp>::value && |
| 1359 | sizeof(__is_base_of_imp::__test<_Bp, _Dp>(0)) == 2> {}; |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1360 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 1361 | #endif // _LIBCPP_HAS_IS_BASE_OF |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1362 | |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1363 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1364 | template <class _Bp, class _Dp> _LIBCPP_CONSTEXPR bool is_base_of_v |
| 1365 | = is_base_of<_Bp, _Dp>::value; |
| 1366 | #endif |
| 1367 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1368 | // is_convertible |
| 1369 | |
Eric Fiselier | ffbfbcd | 2015-03-19 21:11:02 +0000 | [diff] [blame] | 1370 | #if __has_feature(is_convertible_to) && !defined(_LIBCPP_USE_IS_CONVERTIBLE_FALLBACK) |
Howard Hinnant | 091c5ac | 2011-01-27 21:00:00 +0000 | [diff] [blame] | 1371 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1372 | template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible |
Howard Hinnant | e87514a | 2012-08-13 12:29:17 +0000 | [diff] [blame] | 1373 | : public integral_constant<bool, __is_convertible_to(_T1, _T2) && |
| 1374 | !is_abstract<_T2>::value> {}; |
Howard Hinnant | 091c5ac | 2011-01-27 21:00:00 +0000 | [diff] [blame] | 1375 | |
Howard Hinnant | 31b8e61 | 2011-02-10 17:46:03 +0000 | [diff] [blame] | 1376 | #else // __has_feature(is_convertible_to) |
Howard Hinnant | 091c5ac | 2011-01-27 21:00:00 +0000 | [diff] [blame] | 1377 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1378 | namespace __is_convertible_imp |
| 1379 | { |
Eric Fiselier | 4bd1546 | 2015-03-30 15:22:20 +0000 | [diff] [blame] | 1380 | template <class _Tp> void __test_convert(_Tp); |
| 1381 | |
| 1382 | template <class _From, class _To, class = void> |
| 1383 | struct __is_convertible_test : public false_type {}; |
| 1384 | |
| 1385 | template <class _From, class _To> |
| 1386 | struct __is_convertible_test<_From, _To, |
Eric Fiselier | e01f946 | 2016-01-26 20:24:30 +0000 | [diff] [blame] | 1387 | decltype(_VSTD::__is_convertible_imp::__test_convert<_To>(_VSTD::declval<_From>()))> : public true_type |
Eric Fiselier | 4bd1546 | 2015-03-30 15:22:20 +0000 | [diff] [blame] | 1388 | {}; |
| 1389 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1390 | template <class _Tp, bool _IsArray = is_array<_Tp>::value, |
| 1391 | bool _IsFunction = is_function<_Tp>::value, |
| 1392 | bool _IsVoid = is_void<_Tp>::value> |
| 1393 | struct __is_array_function_or_void {enum {value = 0};}; |
| 1394 | template <class _Tp> struct __is_array_function_or_void<_Tp, true, false, false> {enum {value = 1};}; |
| 1395 | template <class _Tp> struct __is_array_function_or_void<_Tp, false, true, false> {enum {value = 2};}; |
| 1396 | template <class _Tp> struct __is_array_function_or_void<_Tp, false, false, true> {enum {value = 3};}; |
| 1397 | } |
| 1398 | |
| 1399 | template <class _Tp, |
| 1400 | unsigned = __is_convertible_imp::__is_array_function_or_void<typename remove_reference<_Tp>::type>::value> |
| 1401 | struct __is_convertible_check |
| 1402 | { |
| 1403 | static const size_t __v = 0; |
| 1404 | }; |
| 1405 | |
| 1406 | template <class _Tp> |
| 1407 | struct __is_convertible_check<_Tp, 0> |
| 1408 | { |
| 1409 | static const size_t __v = sizeof(_Tp); |
| 1410 | }; |
| 1411 | |
| 1412 | template <class _T1, class _T2, |
| 1413 | unsigned _T1_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T1>::value, |
| 1414 | unsigned _T2_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T2>::value> |
| 1415 | struct __is_convertible |
| 1416 | : public integral_constant<bool, |
Eric Fiselier | 4bd1546 | 2015-03-30 15:22:20 +0000 | [diff] [blame] | 1417 | __is_convertible_imp::__is_convertible_test<_T1, _T2>::value |
| 1418 | #if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) |
Howard Hinnant | a0852ff | 2012-08-17 17:54:11 +0000 | [diff] [blame] | 1419 | && !(!is_function<_T1>::value && !is_reference<_T1>::value && is_reference<_T2>::value |
| 1420 | && (!is_const<typename remove_reference<_T2>::type>::value |
Howard Hinnant | a516028 | 2012-08-25 15:06:50 +0000 | [diff] [blame] | 1421 | || is_volatile<typename remove_reference<_T2>::type>::value) |
| 1422 | && (is_same<typename remove_cv<_T1>::type, |
| 1423 | typename remove_cv<typename remove_reference<_T2>::type>::type>::value |
| 1424 | || is_base_of<typename remove_reference<_T2>::type, _T1>::value)) |
Howard Hinnant | a0852ff | 2012-08-17 17:54:11 +0000 | [diff] [blame] | 1425 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1426 | > |
| 1427 | {}; |
| 1428 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1429 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 1> : public false_type {}; |
| 1430 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 1> : public false_type {}; |
| 1431 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 1> : public false_type {}; |
| 1432 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 1> : public false_type {}; |
| 1433 | |
| 1434 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 2> : public false_type {}; |
| 1435 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 2> : public false_type {}; |
| 1436 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 2> : public false_type {}; |
| 1437 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 2> : public false_type {}; |
| 1438 | |
| 1439 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 3> : public false_type {}; |
| 1440 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public false_type {}; |
| 1441 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {}; |
| 1442 | template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {}; |
| 1443 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1444 | template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1445 | : public __is_convertible<_T1, _T2> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1446 | { |
| 1447 | static const size_t __complete_check1 = __is_convertible_check<_T1>::__v; |
| 1448 | static const size_t __complete_check2 = __is_convertible_check<_T2>::__v; |
| 1449 | }; |
| 1450 | |
Howard Hinnant | 31b8e61 | 2011-02-10 17:46:03 +0000 | [diff] [blame] | 1451 | #endif // __has_feature(is_convertible_to) |
Howard Hinnant | 091c5ac | 2011-01-27 21:00:00 +0000 | [diff] [blame] | 1452 | |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1453 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1454 | template <class _From, class _To> _LIBCPP_CONSTEXPR bool is_convertible_v |
| 1455 | = is_convertible<_From, _To>::value; |
| 1456 | #endif |
| 1457 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1458 | // is_empty |
| 1459 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 1460 | #if __has_feature(is_empty) || (_GNUC_VER >= 407) |
Howard Hinnant | e814a90 | 2011-12-02 20:41:47 +0000 | [diff] [blame] | 1461 | |
| 1462 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1463 | struct _LIBCPP_TYPE_VIS_ONLY is_empty |
Howard Hinnant | e814a90 | 2011-12-02 20:41:47 +0000 | [diff] [blame] | 1464 | : public integral_constant<bool, __is_empty(_Tp)> {}; |
| 1465 | |
| 1466 | #else // __has_feature(is_empty) |
| 1467 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1468 | template <class _Tp> |
| 1469 | struct __is_empty1 |
| 1470 | : public _Tp |
| 1471 | { |
Howard Hinnant | 9c0df14 | 2012-10-30 19:06:59 +0000 | [diff] [blame] | 1472 | double __lx; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1473 | }; |
| 1474 | |
| 1475 | struct __is_empty2 |
| 1476 | { |
Howard Hinnant | 9c0df14 | 2012-10-30 19:06:59 +0000 | [diff] [blame] | 1477 | double __lx; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1478 | }; |
| 1479 | |
| 1480 | template <class _Tp, bool = is_class<_Tp>::value> |
| 1481 | struct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>) == sizeof(__is_empty2)> {}; |
| 1482 | |
| 1483 | template <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {}; |
| 1484 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1485 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_empty : public __libcpp_empty<_Tp> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1486 | |
Howard Hinnant | e814a90 | 2011-12-02 20:41:47 +0000 | [diff] [blame] | 1487 | #endif // __has_feature(is_empty) |
| 1488 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 1489 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1490 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_empty_v |
| 1491 | = is_empty<_Tp>::value; |
| 1492 | #endif |
| 1493 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1494 | // is_polymorphic |
| 1495 | |
Yaron Keren | 0648cc5 | 2014-02-21 10:00:31 +0000 | [diff] [blame] | 1496 | #if __has_feature(is_polymorphic) || defined(_LIBCPP_MSVC) |
Howard Hinnant | 1e9f55f | 2012-02-15 20:47:11 +0000 | [diff] [blame] | 1497 | |
| 1498 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1499 | struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic |
Howard Hinnant | 1e9f55f | 2012-02-15 20:47:11 +0000 | [diff] [blame] | 1500 | : public integral_constant<bool, __is_polymorphic(_Tp)> {}; |
| 1501 | |
| 1502 | #else |
| 1503 | |
Howard Hinnant | 11a50ac | 2013-04-02 21:25:06 +0000 | [diff] [blame] | 1504 | template<typename _Tp> char &__is_polymorphic_impl( |
| 1505 | typename enable_if<sizeof((_Tp*)dynamic_cast<const volatile void*>(declval<_Tp*>())) != 0, |
| 1506 | int>::type); |
| 1507 | template<typename _Tp> __two &__is_polymorphic_impl(...); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1508 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1509 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic |
Howard Hinnant | 11a50ac | 2013-04-02 21:25:06 +0000 | [diff] [blame] | 1510 | : public integral_constant<bool, sizeof(__is_polymorphic_impl<_Tp>(0)) == 1> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1511 | |
Howard Hinnant | 1e9f55f | 2012-02-15 20:47:11 +0000 | [diff] [blame] | 1512 | #endif // __has_feature(is_polymorphic) |
| 1513 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 1514 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1515 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_polymorphic_v |
| 1516 | = is_polymorphic<_Tp>::value; |
| 1517 | #endif |
| 1518 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1519 | // has_virtual_destructor |
| 1520 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 1521 | #if __has_feature(has_virtual_destructor) || (_GNUC_VER >= 403) |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1522 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1523 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1524 | : public integral_constant<bool, __has_virtual_destructor(_Tp)> {}; |
| 1525 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 1526 | #else |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1527 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1528 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 1529 | : public false_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1530 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 1531 | #endif |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 1532 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 1533 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 1534 | template <class _Tp> _LIBCPP_CONSTEXPR bool has_virtual_destructor_v |
| 1535 | = has_virtual_destructor<_Tp>::value; |
| 1536 | #endif |
| 1537 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1538 | // alignment_of |
| 1539 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1540 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY alignment_of |
Howard Hinnant | 5544f7e | 2013-04-22 19:37:49 +0000 | [diff] [blame] | 1541 | : public integral_constant<size_t, __alignof__(_Tp)> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1542 | |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1543 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
Marshall Clow | ea97290 | 2015-11-30 05:20:00 +0000 | [diff] [blame] | 1544 | template <class _Tp> _LIBCPP_CONSTEXPR size_t alignment_of_v |
Marshall Clow | a3e7f52 | 2015-11-30 04:30:02 +0000 | [diff] [blame] | 1545 | = alignment_of<_Tp>::value; |
| 1546 | #endif |
| 1547 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1548 | // aligned_storage |
| 1549 | |
| 1550 | template <class _Hp, class _Tp> |
| 1551 | struct __type_list |
| 1552 | { |
| 1553 | typedef _Hp _Head; |
| 1554 | typedef _Tp _Tail; |
| 1555 | }; |
| 1556 | |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 1557 | struct __nat |
| 1558 | { |
| 1559 | #ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS |
| 1560 | __nat() = delete; |
| 1561 | __nat(const __nat&) = delete; |
| 1562 | __nat& operator=(const __nat&) = delete; |
| 1563 | ~__nat() = delete; |
| 1564 | #endif |
| 1565 | }; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1566 | |
| 1567 | template <class _Tp> |
| 1568 | struct __align_type |
| 1569 | { |
| 1570 | static const size_t value = alignment_of<_Tp>::value; |
| 1571 | typedef _Tp type; |
| 1572 | }; |
| 1573 | |
Howard Hinnant | 9c0df14 | 2012-10-30 19:06:59 +0000 | [diff] [blame] | 1574 | struct __struct_double {long double __lx;}; |
| 1575 | struct __struct_double4 {double __lx[4];}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1576 | |
| 1577 | typedef |
| 1578 | __type_list<__align_type<unsigned char>, |
| 1579 | __type_list<__align_type<unsigned short>, |
| 1580 | __type_list<__align_type<unsigned int>, |
| 1581 | __type_list<__align_type<unsigned long>, |
| 1582 | __type_list<__align_type<unsigned long long>, |
| 1583 | __type_list<__align_type<double>, |
| 1584 | __type_list<__align_type<long double>, |
| 1585 | __type_list<__align_type<__struct_double>, |
| 1586 | __type_list<__align_type<__struct_double4>, |
| 1587 | __type_list<__align_type<int*>, |
| 1588 | __nat |
| 1589 | > > > > > > > > > > __all_types; |
| 1590 | |
| 1591 | template <class _TL, size_t _Align> struct __find_pod; |
| 1592 | |
| 1593 | template <class _Hp, size_t _Align> |
| 1594 | struct __find_pod<__type_list<_Hp, __nat>, _Align> |
| 1595 | { |
| 1596 | typedef typename conditional< |
| 1597 | _Align == _Hp::value, |
| 1598 | typename _Hp::type, |
| 1599 | void |
| 1600 | >::type type; |
| 1601 | }; |
| 1602 | |
| 1603 | template <class _Hp, class _Tp, size_t _Align> |
| 1604 | struct __find_pod<__type_list<_Hp, _Tp>, _Align> |
| 1605 | { |
| 1606 | typedef typename conditional< |
| 1607 | _Align == _Hp::value, |
| 1608 | typename _Hp::type, |
| 1609 | typename __find_pod<_Tp, _Align>::type |
| 1610 | >::type type; |
| 1611 | }; |
| 1612 | |
| 1613 | template <class _TL, size_t _Len> struct __find_max_align; |
| 1614 | |
| 1615 | template <class _Hp, size_t _Len> |
| 1616 | struct __find_max_align<__type_list<_Hp, __nat>, _Len> : public integral_constant<size_t, _Hp::value> {}; |
| 1617 | |
| 1618 | template <size_t _Len, size_t _A1, size_t _A2> |
| 1619 | struct __select_align |
| 1620 | { |
| 1621 | private: |
| 1622 | static const size_t __min = _A2 < _A1 ? _A2 : _A1; |
| 1623 | static const size_t __max = _A1 < _A2 ? _A2 : _A1; |
| 1624 | public: |
| 1625 | static const size_t value = _Len < __max ? __min : __max; |
| 1626 | }; |
| 1627 | |
| 1628 | template <class _Hp, class _Tp, size_t _Len> |
| 1629 | struct __find_max_align<__type_list<_Hp, _Tp>, _Len> |
| 1630 | : public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {}; |
| 1631 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1632 | template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1633 | struct _LIBCPP_TYPE_VIS_ONLY aligned_storage |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1634 | { |
| 1635 | typedef typename __find_pod<__all_types, _Align>::type _Aligner; |
| 1636 | static_assert(!is_void<_Aligner>::value, ""); |
| 1637 | union type |
| 1638 | { |
| 1639 | _Aligner __align; |
Eric Fiselier | 514c831 | 2015-09-22 18:37:03 +0000 | [diff] [blame] | 1640 | unsigned char __data[(_Len + _Align - 1)/_Align * _Align]; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1641 | }; |
| 1642 | }; |
| 1643 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1644 | #if _LIBCPP_STD_VER > 11 |
| 1645 | template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value> |
| 1646 | using aligned_storage_t = typename aligned_storage<_Len, _Align>::type; |
| 1647 | #endif |
| 1648 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1649 | #define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \ |
| 1650 | template <size_t _Len>\ |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1651 | struct _LIBCPP_TYPE_VIS_ONLY aligned_storage<_Len, n>\ |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1652 | {\ |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 1653 | struct _ALIGNAS(n) type\ |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1654 | {\ |
Eric Fiselier | 514c831 | 2015-09-22 18:37:03 +0000 | [diff] [blame] | 1655 | unsigned char __lx[(_Len + n - 1)/n * n];\ |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 1656 | };\ |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1657 | } |
| 1658 | |
| 1659 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1); |
| 1660 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2); |
| 1661 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4); |
| 1662 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x8); |
| 1663 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x10); |
| 1664 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x20); |
| 1665 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x40); |
| 1666 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x80); |
| 1667 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x100); |
| 1668 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x200); |
| 1669 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x400); |
| 1670 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x800); |
| 1671 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1000); |
| 1672 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2000); |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 1673 | // MSDN says that MSVC does not support alignment beyond 8192 (=0x2000) |
Howard Hinnant | e9df0a5 | 2013-08-01 18:17:34 +0000 | [diff] [blame] | 1674 | #if !defined(_LIBCPP_MSVC) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1675 | _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000); |
Howard Hinnant | e9df0a5 | 2013-08-01 18:17:34 +0000 | [diff] [blame] | 1676 | #endif // !_LIBCPP_MSVC |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1677 | |
| 1678 | #undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION |
| 1679 | |
Howard Hinnant | 5544f7e | 2013-04-22 19:37:49 +0000 | [diff] [blame] | 1680 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 1681 | |
| 1682 | // aligned_union |
| 1683 | |
| 1684 | template <size_t _I0, size_t ..._In> |
| 1685 | struct __static_max; |
| 1686 | |
| 1687 | template <size_t _I0> |
| 1688 | struct __static_max<_I0> |
| 1689 | { |
| 1690 | static const size_t value = _I0; |
| 1691 | }; |
| 1692 | |
| 1693 | template <size_t _I0, size_t _I1, size_t ..._In> |
| 1694 | struct __static_max<_I0, _I1, _In...> |
| 1695 | { |
| 1696 | static const size_t value = _I0 >= _I1 ? __static_max<_I0, _In...>::value : |
| 1697 | __static_max<_I1, _In...>::value; |
| 1698 | }; |
| 1699 | |
| 1700 | template <size_t _Len, class _Type0, class ..._Types> |
| 1701 | struct aligned_union |
| 1702 | { |
| 1703 | static const size_t alignment_value = __static_max<__alignof__(_Type0), |
| 1704 | __alignof__(_Types)...>::value; |
| 1705 | static const size_t __len = __static_max<_Len, sizeof(_Type0), |
| 1706 | sizeof(_Types)...>::value; |
| 1707 | typedef typename aligned_storage<__len, alignment_value>::type type; |
| 1708 | }; |
| 1709 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1710 | #if _LIBCPP_STD_VER > 11 |
| 1711 | template <size_t _Len, class ..._Types> using aligned_union_t = typename aligned_union<_Len, _Types...>::type; |
| 1712 | #endif |
| 1713 | |
Howard Hinnant | 5544f7e | 2013-04-22 19:37:49 +0000 | [diff] [blame] | 1714 | #endif // _LIBCPP_HAS_NO_VARIADICS |
| 1715 | |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1716 | template <class _Tp> |
| 1717 | struct __numeric_type |
| 1718 | { |
| 1719 | static void __test(...); |
| 1720 | static float __test(float); |
| 1721 | static double __test(char); |
| 1722 | static double __test(int); |
| 1723 | static double __test(unsigned); |
| 1724 | static double __test(long); |
| 1725 | static double __test(unsigned long); |
| 1726 | static double __test(long long); |
| 1727 | static double __test(unsigned long long); |
| 1728 | static double __test(double); |
| 1729 | static long double __test(long double); |
| 1730 | |
| 1731 | typedef decltype(__test(declval<_Tp>())) type; |
| 1732 | static const bool value = !is_same<type, void>::value; |
| 1733 | }; |
| 1734 | |
| 1735 | template <> |
| 1736 | struct __numeric_type<void> |
| 1737 | { |
| 1738 | static const bool value = true; |
| 1739 | }; |
| 1740 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1741 | // __promote |
| 1742 | |
| 1743 | template <class _A1, class _A2 = void, class _A3 = void, |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1744 | bool = __numeric_type<_A1>::value && |
| 1745 | __numeric_type<_A2>::value && |
| 1746 | __numeric_type<_A3>::value> |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1747 | class __promote_imp |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1748 | { |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1749 | public: |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1750 | static const bool value = false; |
| 1751 | }; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1752 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1753 | template <class _A1, class _A2, class _A3> |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1754 | class __promote_imp<_A1, _A2, _A3, true> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1755 | { |
| 1756 | private: |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1757 | typedef typename __promote_imp<_A1>::type __type1; |
| 1758 | typedef typename __promote_imp<_A2>::type __type2; |
| 1759 | typedef typename __promote_imp<_A3>::type __type3; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1760 | public: |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 1761 | typedef decltype(__type1() + __type2() + __type3()) type; |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1762 | static const bool value = true; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1763 | }; |
| 1764 | |
| 1765 | template <class _A1, class _A2> |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1766 | class __promote_imp<_A1, _A2, void, true> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1767 | { |
| 1768 | private: |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1769 | typedef typename __promote_imp<_A1>::type __type1; |
| 1770 | typedef typename __promote_imp<_A2>::type __type2; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1771 | public: |
Howard Hinnant | 08e1747 | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 1772 | typedef decltype(__type1() + __type2()) type; |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1773 | static const bool value = true; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1774 | }; |
| 1775 | |
| 1776 | template <class _A1> |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1777 | class __promote_imp<_A1, void, void, true> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1778 | { |
| 1779 | public: |
Marshall Clow | 854a7a0 | 2014-01-03 18:21:14 +0000 | [diff] [blame] | 1780 | typedef typename __numeric_type<_A1>::type type; |
| 1781 | static const bool value = true; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1782 | }; |
| 1783 | |
Eric Fiselier | 950ee77 | 2014-10-17 00:31:47 +0000 | [diff] [blame] | 1784 | template <class _A1, class _A2 = void, class _A3 = void> |
| 1785 | class __promote : public __promote_imp<_A1, _A2, _A3> {}; |
| 1786 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1787 | // make_signed / make_unsigned |
| 1788 | |
| 1789 | typedef |
| 1790 | __type_list<signed char, |
| 1791 | __type_list<signed short, |
| 1792 | __type_list<signed int, |
| 1793 | __type_list<signed long, |
| 1794 | __type_list<signed long long, |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 1795 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 1796 | __type_list<__int128_t, |
| 1797 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1798 | __nat |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 1799 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 1800 | > |
| 1801 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1802 | > > > > > __signed_types; |
| 1803 | |
| 1804 | typedef |
| 1805 | __type_list<unsigned char, |
| 1806 | __type_list<unsigned short, |
| 1807 | __type_list<unsigned int, |
| 1808 | __type_list<unsigned long, |
| 1809 | __type_list<unsigned long long, |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 1810 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 1811 | __type_list<__uint128_t, |
| 1812 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1813 | __nat |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 1814 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 1815 | > |
| 1816 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1817 | > > > > > __unsigned_types; |
| 1818 | |
| 1819 | template <class _TypeList, size_t _Size, bool = _Size <= sizeof(typename _TypeList::_Head)> struct __find_first; |
| 1820 | |
| 1821 | template <class _Hp, class _Tp, size_t _Size> |
| 1822 | struct __find_first<__type_list<_Hp, _Tp>, _Size, true> |
| 1823 | { |
| 1824 | typedef _Hp type; |
| 1825 | }; |
| 1826 | |
| 1827 | template <class _Hp, class _Tp, size_t _Size> |
| 1828 | struct __find_first<__type_list<_Hp, _Tp>, _Size, false> |
| 1829 | { |
| 1830 | typedef typename __find_first<_Tp, _Size>::type type; |
| 1831 | }; |
| 1832 | |
| 1833 | template <class _Tp, class _Up, bool = is_const<typename remove_reference<_Tp>::type>::value, |
| 1834 | bool = is_volatile<typename remove_reference<_Tp>::type>::value> |
| 1835 | struct __apply_cv |
| 1836 | { |
| 1837 | typedef _Up type; |
| 1838 | }; |
| 1839 | |
| 1840 | template <class _Tp, class _Up> |
| 1841 | struct __apply_cv<_Tp, _Up, true, false> |
| 1842 | { |
| 1843 | typedef const _Up type; |
| 1844 | }; |
| 1845 | |
| 1846 | template <class _Tp, class _Up> |
| 1847 | struct __apply_cv<_Tp, _Up, false, true> |
| 1848 | { |
| 1849 | typedef volatile _Up type; |
| 1850 | }; |
| 1851 | |
| 1852 | template <class _Tp, class _Up> |
| 1853 | struct __apply_cv<_Tp, _Up, true, true> |
| 1854 | { |
| 1855 | typedef const volatile _Up type; |
| 1856 | }; |
| 1857 | |
| 1858 | template <class _Tp, class _Up> |
| 1859 | struct __apply_cv<_Tp&, _Up, false, false> |
| 1860 | { |
| 1861 | typedef _Up& type; |
| 1862 | }; |
| 1863 | |
| 1864 | template <class _Tp, class _Up> |
| 1865 | struct __apply_cv<_Tp&, _Up, true, false> |
| 1866 | { |
| 1867 | typedef const _Up& type; |
| 1868 | }; |
| 1869 | |
| 1870 | template <class _Tp, class _Up> |
| 1871 | struct __apply_cv<_Tp&, _Up, false, true> |
| 1872 | { |
| 1873 | typedef volatile _Up& type; |
| 1874 | }; |
| 1875 | |
| 1876 | template <class _Tp, class _Up> |
| 1877 | struct __apply_cv<_Tp&, _Up, true, true> |
| 1878 | { |
| 1879 | typedef const volatile _Up& type; |
| 1880 | }; |
| 1881 | |
| 1882 | template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> |
| 1883 | struct __make_signed {}; |
| 1884 | |
| 1885 | template <class _Tp> |
| 1886 | struct __make_signed<_Tp, true> |
| 1887 | { |
| 1888 | typedef typename __find_first<__signed_types, sizeof(_Tp)>::type type; |
| 1889 | }; |
| 1890 | |
| 1891 | template <> struct __make_signed<bool, true> {}; |
| 1892 | template <> struct __make_signed< signed short, true> {typedef short type;}; |
| 1893 | template <> struct __make_signed<unsigned short, true> {typedef short type;}; |
| 1894 | template <> struct __make_signed< signed int, true> {typedef int type;}; |
| 1895 | template <> struct __make_signed<unsigned int, true> {typedef int type;}; |
| 1896 | template <> struct __make_signed< signed long, true> {typedef long type;}; |
| 1897 | template <> struct __make_signed<unsigned long, true> {typedef long type;}; |
| 1898 | template <> struct __make_signed< signed long long, true> {typedef long long type;}; |
| 1899 | template <> struct __make_signed<unsigned long long, true> {typedef long long type;}; |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 1900 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 1901 | template <> struct __make_signed<__int128_t, true> {typedef __int128_t type;}; |
| 1902 | template <> struct __make_signed<__uint128_t, true> {typedef __int128_t type;}; |
| 1903 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1904 | |
| 1905 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1906 | struct _LIBCPP_TYPE_VIS_ONLY make_signed |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1907 | { |
| 1908 | typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type; |
| 1909 | }; |
| 1910 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1911 | #if _LIBCPP_STD_VER > 11 |
| 1912 | template <class _Tp> using make_signed_t = typename make_signed<_Tp>::type; |
| 1913 | #endif |
| 1914 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1915 | template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> |
| 1916 | struct __make_unsigned {}; |
| 1917 | |
| 1918 | template <class _Tp> |
| 1919 | struct __make_unsigned<_Tp, true> |
| 1920 | { |
| 1921 | typedef typename __find_first<__unsigned_types, sizeof(_Tp)>::type type; |
| 1922 | }; |
| 1923 | |
| 1924 | template <> struct __make_unsigned<bool, true> {}; |
| 1925 | template <> struct __make_unsigned< signed short, true> {typedef unsigned short type;}; |
| 1926 | template <> struct __make_unsigned<unsigned short, true> {typedef unsigned short type;}; |
| 1927 | template <> struct __make_unsigned< signed int, true> {typedef unsigned int type;}; |
| 1928 | template <> struct __make_unsigned<unsigned int, true> {typedef unsigned int type;}; |
| 1929 | template <> struct __make_unsigned< signed long, true> {typedef unsigned long type;}; |
| 1930 | template <> struct __make_unsigned<unsigned long, true> {typedef unsigned long type;}; |
| 1931 | template <> struct __make_unsigned< signed long long, true> {typedef unsigned long long type;}; |
| 1932 | template <> struct __make_unsigned<unsigned long long, true> {typedef unsigned long long type;}; |
Stephan Tolksdorf | 8a71d23 | 2014-03-26 19:45:52 +0000 | [diff] [blame] | 1933 | #ifndef _LIBCPP_HAS_NO_INT128 |
| 1934 | template <> struct __make_unsigned<__int128_t, true> {typedef __uint128_t type;}; |
| 1935 | template <> struct __make_unsigned<__uint128_t, true> {typedef __uint128_t type;}; |
| 1936 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1937 | |
| 1938 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1939 | struct _LIBCPP_TYPE_VIS_ONLY make_unsigned |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1940 | { |
| 1941 | typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type; |
| 1942 | }; |
| 1943 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 1944 | #if _LIBCPP_STD_VER > 11 |
| 1945 | template <class _Tp> using make_unsigned_t = typename make_unsigned<_Tp>::type; |
| 1946 | #endif |
| 1947 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1948 | #ifdef _LIBCPP_HAS_NO_VARIADICS |
| 1949 | |
Marshall Clow | 6027993 | 2015-01-09 17:03:36 +0000 | [diff] [blame] | 1950 | template <class _Tp, class _Up = void, class _Vp = void> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1951 | struct _LIBCPP_TYPE_VIS_ONLY common_type |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1952 | { |
| 1953 | public: |
Marshall Clow | 6027993 | 2015-01-09 17:03:36 +0000 | [diff] [blame] | 1954 | typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp>::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1955 | }; |
| 1956 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1957 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1958 | struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, void, void> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1959 | { |
| 1960 | public: |
Marshall Clow | 71e699d | 2014-02-10 17:40:28 +0000 | [diff] [blame] | 1961 | typedef typename decay<_Tp>::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1962 | }; |
| 1963 | |
| 1964 | template <class _Tp, class _Up> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1965 | struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, void> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1966 | { |
Eric Fiselier | 65a6f64 | 2015-09-08 00:13:57 +0000 | [diff] [blame] | 1967 | typedef typename decay<decltype( |
| 1968 | true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>() |
| 1969 | )>::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1970 | }; |
| 1971 | |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 1972 | #else // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1973 | |
Eric Fiselier | 65a6f64 | 2015-09-08 00:13:57 +0000 | [diff] [blame] | 1974 | // bullet 1 - sizeof...(Tp) == 0 |
| 1975 | |
| 1976 | template <class ..._Tp> |
| 1977 | struct _LIBCPP_TYPE_VIS_ONLY common_type {}; |
| 1978 | |
| 1979 | // bullet 2 - sizeof...(Tp) == 1 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1980 | |
| 1981 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 1982 | struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1983 | { |
Marshall Clow | dab89a1 | 2013-10-07 23:43:33 +0000 | [diff] [blame] | 1984 | typedef typename decay<_Tp>::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1985 | }; |
| 1986 | |
Eric Fiselier | 65a6f64 | 2015-09-08 00:13:57 +0000 | [diff] [blame] | 1987 | // bullet 3 - sizeof...(Tp) == 2 |
| 1988 | |
| 1989 | template <class _Tp, class _Up, class = void> |
| 1990 | struct __common_type2 {}; |
| 1991 | |
| 1992 | template <class _Tp, class _Up> |
| 1993 | struct __common_type2<_Tp, _Up, |
| 1994 | typename __void_t<decltype( |
| 1995 | true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>() |
| 1996 | )>::type> |
| 1997 | { |
| 1998 | typedef typename decay<decltype( |
| 1999 | true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>() |
| 2000 | )>::type type; |
| 2001 | }; |
| 2002 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2003 | template <class _Tp, class _Up> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2004 | struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up> |
Eric Fiselier | 65a6f64 | 2015-09-08 00:13:57 +0000 | [diff] [blame] | 2005 | : __common_type2<_Tp, _Up> {}; |
| 2006 | |
| 2007 | // bullet 4 - sizeof...(Tp) > 2 |
| 2008 | |
| 2009 | template <class ...Tp> struct __common_types; |
| 2010 | |
| 2011 | template <class, class = void> |
| 2012 | struct __common_type_impl {}; |
| 2013 | |
| 2014 | template <class _Tp, class _Up, class ..._Vp> |
| 2015 | struct __common_type_impl<__common_types<_Tp, _Up, _Vp...>, |
| 2016 | typename __void_t<typename common_type<_Tp, _Up>::type>::type> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2017 | { |
Eric Fiselier | 65a6f64 | 2015-09-08 00:13:57 +0000 | [diff] [blame] | 2018 | typedef typename common_type< |
| 2019 | typename common_type<_Tp, _Up>::type, _Vp... |
| 2020 | >::type type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2021 | }; |
| 2022 | |
| 2023 | template <class _Tp, class _Up, class ..._Vp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2024 | struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, _Vp...> |
Eric Fiselier | 65a6f64 | 2015-09-08 00:13:57 +0000 | [diff] [blame] | 2025 | : __common_type_impl<__common_types<_Tp, _Up, _Vp...> > {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2026 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 2027 | #if _LIBCPP_STD_VER > 11 |
| 2028 | template <class ..._Tp> using common_type_t = typename common_type<_Tp...>::type; |
| 2029 | #endif |
| 2030 | |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 2031 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2032 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2033 | // is_assignable |
| 2034 | |
Joerg Sonnenberger | bfaafd5 | 2013-11-25 22:44:20 +0000 | [diff] [blame] | 2035 | template<typename, typename _Tp> struct __select_2nd { typedef _Tp type; }; |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 2036 | |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2037 | template <class _Tp, class _Arg> |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 2038 | typename __select_2nd<decltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>())), true_type>::type |
Eric Fiselier | 602fe15 | 2016-07-25 02:08:55 +0000 | [diff] [blame] | 2039 | __is_assignable_test(int); |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2040 | |
Eric Fiselier | 602fe15 | 2016-07-25 02:08:55 +0000 | [diff] [blame] | 2041 | template <class, class> |
| 2042 | false_type __is_assignable_test(...); |
| 2043 | |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2044 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 2045 | template <class _Tp, class _Arg, bool = is_void<_Tp>::value || is_void<_Arg>::value> |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2046 | struct __is_assignable_imp |
Eric Fiselier | 602fe15 | 2016-07-25 02:08:55 +0000 | [diff] [blame] | 2047 | : public decltype((_VSTD::__is_assignable_test<_Tp, _Arg>(0))) {}; |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2048 | |
| 2049 | template <class _Tp, class _Arg> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 2050 | struct __is_assignable_imp<_Tp, _Arg, true> |
| 2051 | : public false_type |
| 2052 | { |
| 2053 | }; |
| 2054 | |
| 2055 | template <class _Tp, class _Arg> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2056 | struct is_assignable |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2057 | : public __is_assignable_imp<_Tp, _Arg> {}; |
| 2058 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 2059 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 2060 | template <class _Tp, class _Arg> _LIBCPP_CONSTEXPR bool is_assignable_v |
| 2061 | = is_assignable<_Tp, _Arg>::value; |
| 2062 | #endif |
| 2063 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2064 | // is_copy_assignable |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2065 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2066 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_copy_assignable |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 2067 | : public is_assignable<typename add_lvalue_reference<_Tp>::type, |
Marshall Clow | d132bf4 | 2014-09-22 23:58:00 +0000 | [diff] [blame] | 2068 | typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {}; |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2069 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 2070 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 2071 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_assignable_v |
| 2072 | = is_copy_assignable<_Tp>::value; |
| 2073 | #endif |
| 2074 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2075 | // is_move_assignable |
| 2076 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2077 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_move_assignable |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2078 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 2079 | : public is_assignable<typename add_lvalue_reference<_Tp>::type, |
| 2080 | const typename add_rvalue_reference<_Tp>::type> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2081 | #else |
| 2082 | : public is_copy_assignable<_Tp> {}; |
| 2083 | #endif |
| 2084 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 2085 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 2086 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_assignable_v |
| 2087 | = is_move_assignable<_Tp>::value; |
| 2088 | #endif |
| 2089 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2090 | // is_destructible |
| 2091 | |
Marshall Clow | 38d9005 | 2014-10-18 11:03:33 +0000 | [diff] [blame] | 2092 | // if it's a reference, return true |
| 2093 | // if it's a function, return false |
| 2094 | // if it's void, return false |
| 2095 | // if it's an array of unknown bound, return false |
| 2096 | // Otherwise, return "std::declval<_Up&>().~_Up()" is well-formed |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2097 | // where _Up is remove_all_extents<_Tp>::type |
| 2098 | |
Eric Fiselier | 6f8821d | 2014-07-31 19:09:26 +0000 | [diff] [blame] | 2099 | template <class> |
| 2100 | struct __is_destructible_apply { typedef int type; }; |
| 2101 | |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2102 | template <typename _Tp> |
| 2103 | struct __is_destructor_wellformed { |
Marshall Clow | 38d9005 | 2014-10-18 11:03:33 +0000 | [diff] [blame] | 2104 | template <typename _Tp1> |
| 2105 | static char __test ( |
Eric Fiselier | 6f8821d | 2014-07-31 19:09:26 +0000 | [diff] [blame] | 2106 | typename __is_destructible_apply<decltype(_VSTD::declval<_Tp1&>().~_Tp1())>::type |
| 2107 | ); |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2108 | |
Marshall Clow | 38d9005 | 2014-10-18 11:03:33 +0000 | [diff] [blame] | 2109 | template <typename _Tp1> |
| 2110 | static __two __test (...); |
| 2111 | |
| 2112 | static const bool value = sizeof(__test<_Tp>(12)) == sizeof(char); |
Eric Fiselier | 6f8821d | 2014-07-31 19:09:26 +0000 | [diff] [blame] | 2113 | }; |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2114 | |
| 2115 | template <class _Tp, bool> |
| 2116 | struct __destructible_imp; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2117 | |
| 2118 | template <class _Tp> |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2119 | struct __destructible_imp<_Tp, false> |
| 2120 | : public _VSTD::integral_constant<bool, |
| 2121 | __is_destructor_wellformed<typename _VSTD::remove_all_extents<_Tp>::type>::value> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2122 | |
| 2123 | template <class _Tp> |
| 2124 | struct __destructible_imp<_Tp, true> |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2125 | : public _VSTD::true_type {}; |
| 2126 | |
| 2127 | template <class _Tp, bool> |
| 2128 | struct __destructible_false; |
| 2129 | |
| 2130 | template <class _Tp> |
| 2131 | struct __destructible_false<_Tp, false> : public __destructible_imp<_Tp, _VSTD::is_reference<_Tp>::value> {}; |
| 2132 | |
| 2133 | template <class _Tp> |
| 2134 | struct __destructible_false<_Tp, true> : public _VSTD::false_type {}; |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2135 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2136 | template <class _Tp> |
| 2137 | struct is_destructible |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2138 | : public __destructible_false<_Tp, _VSTD::is_function<_Tp>::value> {}; |
Howard Hinnant | 745d473 | 2010-09-08 17:55:32 +0000 | [diff] [blame] | 2139 | |
Howard Hinnant | 80e19ac | 2013-08-09 16:53:45 +0000 | [diff] [blame] | 2140 | template <class _Tp> |
| 2141 | struct is_destructible<_Tp[]> |
Marshall Clow | 2b44e3d | 2014-07-16 15:51:50 +0000 | [diff] [blame] | 2142 | : public _VSTD::false_type {}; |
| 2143 | |
| 2144 | template <> |
| 2145 | struct is_destructible<void> |
| 2146 | : public _VSTD::false_type {}; |
Howard Hinnant | 80e19ac | 2013-08-09 16:53:45 +0000 | [diff] [blame] | 2147 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 2148 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 2149 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_destructible_v |
| 2150 | = is_destructible<_Tp>::value; |
| 2151 | #endif |
| 2152 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2153 | // move |
| 2154 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 2155 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2156 | |
| 2157 | template <class _Tp> |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 2158 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2159 | typename remove_reference<_Tp>::type&& |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 2160 | move(_Tp&& __t) _NOEXCEPT |
Howard Hinnant | 60a0a8e | 2010-08-10 20:48:29 +0000 | [diff] [blame] | 2161 | { |
Howard Hinnant | 726a76f | 2010-11-16 21:10:23 +0000 | [diff] [blame] | 2162 | typedef typename remove_reference<_Tp>::type _Up; |
| 2163 | return static_cast<_Up&&>(__t); |
Howard Hinnant | 60a0a8e | 2010-08-10 20:48:29 +0000 | [diff] [blame] | 2164 | } |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2165 | |
Howard Hinnant | d2a9251 | 2010-09-13 01:43:27 +0000 | [diff] [blame] | 2166 | template <class _Tp> |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 2167 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | d2a9251 | 2010-09-13 01:43:27 +0000 | [diff] [blame] | 2168 | _Tp&& |
Eric Fiselier | 14273e8 | 2016-05-18 23:09:24 +0000 | [diff] [blame] | 2169 | forward(typename remove_reference<_Tp>::type& __t) _NOEXCEPT |
Howard Hinnant | d2a9251 | 2010-09-13 01:43:27 +0000 | [diff] [blame] | 2170 | { |
| 2171 | return static_cast<_Tp&&>(__t); |
| 2172 | } |
| 2173 | |
| 2174 | template <class _Tp> |
Marshall Clow | 01a0e90 | 2013-07-15 20:46:11 +0000 | [diff] [blame] | 2175 | inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
Howard Hinnant | d2a9251 | 2010-09-13 01:43:27 +0000 | [diff] [blame] | 2176 | _Tp&& |
Eric Fiselier | 14273e8 | 2016-05-18 23:09:24 +0000 | [diff] [blame] | 2177 | forward(typename remove_reference<_Tp>::type&& __t) _NOEXCEPT |
Howard Hinnant | d2a9251 | 2010-09-13 01:43:27 +0000 | [diff] [blame] | 2178 | { |
Eric Fiselier | 14273e8 | 2016-05-18 23:09:24 +0000 | [diff] [blame] | 2179 | static_assert(!is_lvalue_reference<_Tp>::value, |
Howard Hinnant | 8db4aca | 2011-10-17 20:08:59 +0000 | [diff] [blame] | 2180 | "Can not forward an rvalue as an lvalue."); |
| 2181 | return static_cast<_Tp&&>(__t); |
Howard Hinnant | d2a9251 | 2010-09-13 01:43:27 +0000 | [diff] [blame] | 2182 | } |
| 2183 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 2184 | #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2185 | |
Howard Hinnant | d8bc09b | 2010-05-18 17:32:30 +0000 | [diff] [blame] | 2186 | template <class _Tp> |
Howard Hinnant | 87073e4 | 2012-05-01 15:37:54 +0000 | [diff] [blame] | 2187 | inline _LIBCPP_INLINE_VISIBILITY |
| 2188 | _Tp& |
| 2189 | move(_Tp& __t) |
| 2190 | { |
| 2191 | return __t; |
| 2192 | } |
| 2193 | |
| 2194 | template <class _Tp> |
| 2195 | inline _LIBCPP_INLINE_VISIBILITY |
| 2196 | const _Tp& |
| 2197 | move(const _Tp& __t) |
| 2198 | { |
| 2199 | return __t; |
| 2200 | } |
| 2201 | |
| 2202 | template <class _Tp> |
| 2203 | inline _LIBCPP_INLINE_VISIBILITY |
| 2204 | _Tp& |
Eric Fiselier | 14273e8 | 2016-05-18 23:09:24 +0000 | [diff] [blame] | 2205 | forward(typename remove_reference<_Tp>::type& __t) _NOEXCEPT |
Howard Hinnant | 87073e4 | 2012-05-01 15:37:54 +0000 | [diff] [blame] | 2206 | { |
| 2207 | return __t; |
| 2208 | } |
| 2209 | |
| 2210 | |
| 2211 | template <class _Tp> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2212 | class __rv |
| 2213 | { |
Howard Hinnant | d8bc09b | 2010-05-18 17:32:30 +0000 | [diff] [blame] | 2214 | typedef typename remove_reference<_Tp>::type _Trr; |
| 2215 | _Trr& t_; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2216 | public: |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 2217 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | d8bc09b | 2010-05-18 17:32:30 +0000 | [diff] [blame] | 2218 | _Trr* operator->() {return &t_;} |
Howard Hinnant | ee6ccd0 | 2010-09-23 18:58:28 +0000 | [diff] [blame] | 2219 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | d8bc09b | 2010-05-18 17:32:30 +0000 | [diff] [blame] | 2220 | explicit __rv(_Trr& __t) : t_(__t) {} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2221 | }; |
| 2222 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 2223 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2224 | |
Howard Hinnant | d4b9578 | 2011-06-19 19:12:59 +0000 | [diff] [blame] | 2225 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 2226 | |
Howard Hinnant | 656bdc3 | 2011-05-16 18:40:35 +0000 | [diff] [blame] | 2227 | template <class _Tp> |
| 2228 | inline _LIBCPP_INLINE_VISIBILITY |
| 2229 | typename decay<_Tp>::type |
| 2230 | __decay_copy(_Tp&& __t) |
| 2231 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 2232 | return _VSTD::forward<_Tp>(__t); |
Howard Hinnant | 656bdc3 | 2011-05-16 18:40:35 +0000 | [diff] [blame] | 2233 | } |
| 2234 | |
Howard Hinnant | d4b9578 | 2011-06-19 19:12:59 +0000 | [diff] [blame] | 2235 | #else |
| 2236 | |
| 2237 | template <class _Tp> |
| 2238 | inline _LIBCPP_INLINE_VISIBILITY |
| 2239 | typename decay<_Tp>::type |
| 2240 | __decay_copy(const _Tp& __t) |
| 2241 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 2242 | return _VSTD::forward<_Tp>(__t); |
Howard Hinnant | d4b9578 | 2011-06-19 19:12:59 +0000 | [diff] [blame] | 2243 | } |
| 2244 | |
| 2245 | #endif |
| 2246 | |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2247 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 2248 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2249 | template <class _Rp, class _Class, class ..._Param> |
| 2250 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...), true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2251 | { |
| 2252 | typedef _Class _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2253 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2254 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2255 | }; |
| 2256 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2257 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2258 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...), true, false> |
| 2259 | { |
| 2260 | typedef _Class _ClassType; |
| 2261 | typedef _Rp _ReturnType; |
| 2262 | typedef _Rp (_FnType) (_Param..., ...); |
| 2263 | }; |
| 2264 | |
| 2265 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2266 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2267 | { |
| 2268 | typedef _Class const _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2269 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2270 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2271 | }; |
| 2272 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2273 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2274 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const, true, false> |
| 2275 | { |
| 2276 | typedef _Class const _ClassType; |
| 2277 | typedef _Rp _ReturnType; |
| 2278 | typedef _Rp (_FnType) (_Param..., ...); |
| 2279 | }; |
| 2280 | |
| 2281 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2282 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2283 | { |
| 2284 | typedef _Class volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2285 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2286 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2287 | }; |
| 2288 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2289 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2290 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile, true, false> |
| 2291 | { |
| 2292 | typedef _Class volatile _ClassType; |
| 2293 | typedef _Rp _ReturnType; |
| 2294 | typedef _Rp (_FnType) (_Param..., ...); |
| 2295 | }; |
| 2296 | |
| 2297 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2298 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2299 | { |
| 2300 | typedef _Class const volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2301 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2302 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2303 | }; |
| 2304 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2305 | template <class _Rp, class _Class, class ..._Param> |
| 2306 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile, true, false> |
| 2307 | { |
| 2308 | typedef _Class const volatile _ClassType; |
| 2309 | typedef _Rp _ReturnType; |
| 2310 | typedef _Rp (_FnType) (_Param..., ...); |
| 2311 | }; |
| 2312 | |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 2313 | #if __has_feature(cxx_reference_qualified_functions) || \ |
| 2314 | (defined(_GNUC_VER) && _GNUC_VER >= 409) |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2315 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2316 | template <class _Rp, class _Class, class ..._Param> |
| 2317 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2318 | { |
| 2319 | typedef _Class& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2320 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2321 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2322 | }; |
| 2323 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2324 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2325 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) &, true, false> |
| 2326 | { |
| 2327 | typedef _Class& _ClassType; |
| 2328 | typedef _Rp _ReturnType; |
| 2329 | typedef _Rp (_FnType) (_Param..., ...); |
| 2330 | }; |
| 2331 | |
| 2332 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2333 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2334 | { |
| 2335 | typedef _Class const& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2336 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2337 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2338 | }; |
| 2339 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2340 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2341 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const&, true, false> |
| 2342 | { |
| 2343 | typedef _Class const& _ClassType; |
| 2344 | typedef _Rp _ReturnType; |
| 2345 | typedef _Rp (_FnType) (_Param..., ...); |
| 2346 | }; |
| 2347 | |
| 2348 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2349 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2350 | { |
| 2351 | typedef _Class volatile& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2352 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2353 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2354 | }; |
| 2355 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2356 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2357 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile&, true, false> |
| 2358 | { |
| 2359 | typedef _Class volatile& _ClassType; |
| 2360 | typedef _Rp _ReturnType; |
| 2361 | typedef _Rp (_FnType) (_Param..., ...); |
| 2362 | }; |
| 2363 | |
| 2364 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2365 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2366 | { |
| 2367 | typedef _Class const volatile& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2368 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2369 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2370 | }; |
| 2371 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2372 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2373 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile&, true, false> |
| 2374 | { |
| 2375 | typedef _Class const volatile& _ClassType; |
| 2376 | typedef _Rp _ReturnType; |
| 2377 | typedef _Rp (_FnType) (_Param..., ...); |
| 2378 | }; |
| 2379 | |
| 2380 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2381 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2382 | { |
| 2383 | typedef _Class&& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2384 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2385 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2386 | }; |
| 2387 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2388 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2389 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) &&, true, false> |
| 2390 | { |
| 2391 | typedef _Class&& _ClassType; |
| 2392 | typedef _Rp _ReturnType; |
| 2393 | typedef _Rp (_FnType) (_Param..., ...); |
| 2394 | }; |
| 2395 | |
| 2396 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2397 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2398 | { |
| 2399 | typedef _Class const&& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2400 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2401 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2402 | }; |
| 2403 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2404 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2405 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const&&, true, false> |
| 2406 | { |
| 2407 | typedef _Class const&& _ClassType; |
| 2408 | typedef _Rp _ReturnType; |
| 2409 | typedef _Rp (_FnType) (_Param..., ...); |
| 2410 | }; |
| 2411 | |
| 2412 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2413 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2414 | { |
| 2415 | typedef _Class volatile&& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2416 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2417 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2418 | }; |
| 2419 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2420 | template <class _Rp, class _Class, class ..._Param> |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2421 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile&&, true, false> |
| 2422 | { |
| 2423 | typedef _Class volatile&& _ClassType; |
| 2424 | typedef _Rp _ReturnType; |
| 2425 | typedef _Rp (_FnType) (_Param..., ...); |
| 2426 | }; |
| 2427 | |
| 2428 | template <class _Rp, class _Class, class ..._Param> |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2429 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&&, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2430 | { |
| 2431 | typedef _Class const volatile&& _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2432 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2433 | typedef _Rp (_FnType) (_Param...); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2434 | }; |
| 2435 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2436 | template <class _Rp, class _Class, class ..._Param> |
| 2437 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile&&, true, false> |
| 2438 | { |
| 2439 | typedef _Class const volatile&& _ClassType; |
| 2440 | typedef _Rp _ReturnType; |
| 2441 | typedef _Rp (_FnType) (_Param..., ...); |
| 2442 | }; |
| 2443 | |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 2444 | #endif // __has_feature(cxx_reference_qualified_functions) || _GNUC_VER >= 409 |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2445 | |
| 2446 | #else // _LIBCPP_HAS_NO_VARIADICS |
| 2447 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2448 | template <class _Rp, class _Class> |
| 2449 | struct __member_pointer_traits_imp<_Rp (_Class::*)(), true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2450 | { |
| 2451 | typedef _Class _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2452 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2453 | typedef _Rp (_FnType) (); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2454 | }; |
| 2455 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2456 | template <class _Rp, class _Class> |
| 2457 | struct __member_pointer_traits_imp<_Rp (_Class::*)(...), true, false> |
| 2458 | { |
| 2459 | typedef _Class _ClassType; |
| 2460 | typedef _Rp _ReturnType; |
| 2461 | typedef _Rp (_FnType) (...); |
| 2462 | }; |
| 2463 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2464 | template <class _Rp, class _Class, class _P0> |
| 2465 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0), true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2466 | { |
| 2467 | typedef _Class _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2468 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2469 | typedef _Rp (_FnType) (_P0); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2470 | }; |
| 2471 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2472 | template <class _Rp, class _Class, class _P0> |
| 2473 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...), true, false> |
| 2474 | { |
| 2475 | typedef _Class _ClassType; |
| 2476 | typedef _Rp _ReturnType; |
| 2477 | typedef _Rp (_FnType) (_P0, ...); |
| 2478 | }; |
| 2479 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2480 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2481 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1), true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2482 | { |
| 2483 | typedef _Class _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2484 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2485 | typedef _Rp (_FnType) (_P0, _P1); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2486 | }; |
| 2487 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2488 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2489 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...), true, false> |
| 2490 | { |
| 2491 | typedef _Class _ClassType; |
| 2492 | typedef _Rp _ReturnType; |
| 2493 | typedef _Rp (_FnType) (_P0, _P1, ...); |
| 2494 | }; |
| 2495 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2496 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2497 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2), true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2498 | { |
| 2499 | typedef _Class _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2500 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2501 | typedef _Rp (_FnType) (_P0, _P1, _P2); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2502 | }; |
| 2503 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2504 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2505 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...), true, false> |
| 2506 | { |
| 2507 | typedef _Class _ClassType; |
| 2508 | typedef _Rp _ReturnType; |
| 2509 | typedef _Rp (_FnType) (_P0, _P1, _P2, ...); |
| 2510 | }; |
| 2511 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2512 | template <class _Rp, class _Class> |
| 2513 | struct __member_pointer_traits_imp<_Rp (_Class::*)() const, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2514 | { |
| 2515 | typedef _Class const _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2516 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2517 | typedef _Rp (_FnType) (); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2518 | }; |
| 2519 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2520 | template <class _Rp, class _Class> |
| 2521 | struct __member_pointer_traits_imp<_Rp (_Class::*)(...) const, true, false> |
| 2522 | { |
| 2523 | typedef _Class const _ClassType; |
| 2524 | typedef _Rp _ReturnType; |
| 2525 | typedef _Rp (_FnType) (...); |
| 2526 | }; |
| 2527 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2528 | template <class _Rp, class _Class, class _P0> |
| 2529 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2530 | { |
| 2531 | typedef _Class const _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2532 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2533 | typedef _Rp (_FnType) (_P0); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2534 | }; |
| 2535 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2536 | template <class _Rp, class _Class, class _P0> |
| 2537 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) const, true, false> |
| 2538 | { |
| 2539 | typedef _Class const _ClassType; |
| 2540 | typedef _Rp _ReturnType; |
| 2541 | typedef _Rp (_FnType) (_P0, ...); |
| 2542 | }; |
| 2543 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2544 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2545 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2546 | { |
| 2547 | typedef _Class const _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2548 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2549 | typedef _Rp (_FnType) (_P0, _P1); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2550 | }; |
| 2551 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2552 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2553 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) const, true, false> |
| 2554 | { |
| 2555 | typedef _Class const _ClassType; |
| 2556 | typedef _Rp _ReturnType; |
| 2557 | typedef _Rp (_FnType) (_P0, _P1, ...); |
| 2558 | }; |
| 2559 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2560 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2561 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2562 | { |
| 2563 | typedef _Class const _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2564 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2565 | typedef _Rp (_FnType) (_P0, _P1, _P2); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2566 | }; |
| 2567 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2568 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2569 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) const, true, false> |
| 2570 | { |
| 2571 | typedef _Class const _ClassType; |
| 2572 | typedef _Rp _ReturnType; |
| 2573 | typedef _Rp (_FnType) (_P0, _P1, _P2, ...); |
| 2574 | }; |
| 2575 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2576 | template <class _Rp, class _Class> |
| 2577 | struct __member_pointer_traits_imp<_Rp (_Class::*)() volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2578 | { |
| 2579 | typedef _Class volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2580 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2581 | typedef _Rp (_FnType) (); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2582 | }; |
| 2583 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2584 | template <class _Rp, class _Class> |
| 2585 | struct __member_pointer_traits_imp<_Rp (_Class::*)(...) volatile, true, false> |
| 2586 | { |
| 2587 | typedef _Class volatile _ClassType; |
| 2588 | typedef _Rp _ReturnType; |
| 2589 | typedef _Rp (_FnType) (...); |
| 2590 | }; |
| 2591 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2592 | template <class _Rp, class _Class, class _P0> |
| 2593 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2594 | { |
| 2595 | typedef _Class volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2596 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2597 | typedef _Rp (_FnType) (_P0); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2598 | }; |
| 2599 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2600 | template <class _Rp, class _Class, class _P0> |
| 2601 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) volatile, true, false> |
| 2602 | { |
| 2603 | typedef _Class volatile _ClassType; |
| 2604 | typedef _Rp _ReturnType; |
| 2605 | typedef _Rp (_FnType) (_P0, ...); |
| 2606 | }; |
| 2607 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2608 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2609 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2610 | { |
| 2611 | typedef _Class volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2612 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2613 | typedef _Rp (_FnType) (_P0, _P1); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2614 | }; |
| 2615 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2616 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2617 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) volatile, true, false> |
| 2618 | { |
| 2619 | typedef _Class volatile _ClassType; |
| 2620 | typedef _Rp _ReturnType; |
| 2621 | typedef _Rp (_FnType) (_P0, _P1, ...); |
| 2622 | }; |
| 2623 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2624 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2625 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2626 | { |
| 2627 | typedef _Class volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2628 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2629 | typedef _Rp (_FnType) (_P0, _P1, _P2); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2630 | }; |
| 2631 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2632 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2633 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) volatile, true, false> |
| 2634 | { |
| 2635 | typedef _Class volatile _ClassType; |
| 2636 | typedef _Rp _ReturnType; |
| 2637 | typedef _Rp (_FnType) (_P0, _P1, _P2, ...); |
| 2638 | }; |
| 2639 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2640 | template <class _Rp, class _Class> |
| 2641 | struct __member_pointer_traits_imp<_Rp (_Class::*)() const volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2642 | { |
| 2643 | typedef _Class const volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2644 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2645 | typedef _Rp (_FnType) (); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2646 | }; |
| 2647 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2648 | template <class _Rp, class _Class> |
| 2649 | struct __member_pointer_traits_imp<_Rp (_Class::*)(...) const volatile, true, false> |
| 2650 | { |
| 2651 | typedef _Class const volatile _ClassType; |
| 2652 | typedef _Rp _ReturnType; |
| 2653 | typedef _Rp (_FnType) (...); |
| 2654 | }; |
| 2655 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2656 | template <class _Rp, class _Class, class _P0> |
| 2657 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2658 | { |
| 2659 | typedef _Class const volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2660 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2661 | typedef _Rp (_FnType) (_P0); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2662 | }; |
| 2663 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2664 | template <class _Rp, class _Class, class _P0> |
| 2665 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) const volatile, true, false> |
| 2666 | { |
| 2667 | typedef _Class const volatile _ClassType; |
| 2668 | typedef _Rp _ReturnType; |
| 2669 | typedef _Rp (_FnType) (_P0, ...); |
| 2670 | }; |
| 2671 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2672 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2673 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2674 | { |
| 2675 | typedef _Class const volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2676 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2677 | typedef _Rp (_FnType) (_P0, _P1); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2678 | }; |
| 2679 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2680 | template <class _Rp, class _Class, class _P0, class _P1> |
| 2681 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) const volatile, true, false> |
| 2682 | { |
| 2683 | typedef _Class const volatile _ClassType; |
| 2684 | typedef _Rp _ReturnType; |
| 2685 | typedef _Rp (_FnType) (_P0, _P1, ...); |
| 2686 | }; |
| 2687 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2688 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2689 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const volatile, true, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2690 | { |
| 2691 | typedef _Class const volatile _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2692 | typedef _Rp _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2693 | typedef _Rp (_FnType) (_P0, _P1, _P2); |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2694 | }; |
| 2695 | |
Eric Fiselier | 63648cf | 2014-08-19 16:31:47 +0000 | [diff] [blame] | 2696 | template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| 2697 | struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) const volatile, true, false> |
| 2698 | { |
| 2699 | typedef _Class const volatile _ClassType; |
| 2700 | typedef _Rp _ReturnType; |
| 2701 | typedef _Rp (_FnType) (_P0, _P1, _P2, ...); |
| 2702 | }; |
| 2703 | |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2704 | #endif // _LIBCPP_HAS_NO_VARIADICS |
| 2705 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2706 | template <class _Rp, class _Class> |
| 2707 | struct __member_pointer_traits_imp<_Rp _Class::*, false, true> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2708 | { |
| 2709 | typedef _Class _ClassType; |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2710 | typedef _Rp _ReturnType; |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2711 | }; |
| 2712 | |
| 2713 | template <class _MP> |
| 2714 | struct __member_pointer_traits |
Howard Hinnant | 6287c65 | 2013-05-15 21:49:27 +0000 | [diff] [blame] | 2715 | : public __member_pointer_traits_imp<typename remove_cv<_MP>::type, |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2716 | is_member_function_pointer<_MP>::value, |
| 2717 | is_member_object_pointer<_MP>::value> |
| 2718 | { |
| 2719 | // typedef ... _ClassType; |
| 2720 | // typedef ... _ReturnType; |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 2721 | // typedef ... _FnType; |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2722 | }; |
| 2723 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 2724 | |
| 2725 | template <class _DecayedFp> |
| 2726 | struct __member_pointer_class_type {}; |
| 2727 | |
| 2728 | template <class _Ret, class _ClassType> |
| 2729 | struct __member_pointer_class_type<_Ret _ClassType::*> { |
| 2730 | typedef _ClassType type; |
| 2731 | }; |
| 2732 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2733 | // result_of |
| 2734 | |
Howard Hinnant | 2b1b2d4 | 2011-06-14 19:58:17 +0000 | [diff] [blame] | 2735 | template <class _Callable> class result_of; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2736 | |
Howard Hinnant | 2d62229 | 2012-06-26 17:37:15 +0000 | [diff] [blame] | 2737 | #ifdef _LIBCPP_HAS_NO_VARIADICS |
| 2738 | |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2739 | template <class _Fn, bool, bool> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2740 | class __result_of |
| 2741 | { |
| 2742 | }; |
| 2743 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2744 | template <class _Fn> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2745 | class __result_of<_Fn(), true, false> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2746 | { |
| 2747 | public: |
| 2748 | typedef decltype(declval<_Fn>()()) type; |
| 2749 | }; |
| 2750 | |
| 2751 | template <class _Fn, class _A0> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2752 | class __result_of<_Fn(_A0), true, false> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2753 | { |
| 2754 | public: |
| 2755 | typedef decltype(declval<_Fn>()(declval<_A0>())) type; |
| 2756 | }; |
| 2757 | |
| 2758 | template <class _Fn, class _A0, class _A1> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2759 | class __result_of<_Fn(_A0, _A1), true, false> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2760 | { |
| 2761 | public: |
| 2762 | typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>())) type; |
| 2763 | }; |
| 2764 | |
| 2765 | template <class _Fn, class _A0, class _A1, class _A2> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2766 | class __result_of<_Fn(_A0, _A1, _A2), true, false> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2767 | { |
| 2768 | public: |
| 2769 | typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>(), declval<_A2>())) type; |
| 2770 | }; |
| 2771 | |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2772 | template <class _MP, class _Tp, bool _IsMemberFunctionPtr> |
| 2773 | struct __result_of_mp; |
| 2774 | |
| 2775 | // member function pointer |
| 2776 | |
| 2777 | template <class _MP, class _Tp> |
| 2778 | struct __result_of_mp<_MP, _Tp, true> |
Eric Fiselier | 4983580 | 2015-06-13 08:25:24 +0000 | [diff] [blame] | 2779 | : public __identity<typename __member_pointer_traits<_MP>::_ReturnType> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2780 | { |
| 2781 | }; |
| 2782 | |
| 2783 | // member data pointer |
| 2784 | |
| 2785 | template <class _MP, class _Tp, bool> |
| 2786 | struct __result_of_mdp; |
| 2787 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2788 | template <class _Rp, class _Class, class _Tp> |
| 2789 | struct __result_of_mdp<_Rp _Class::*, _Tp, false> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2790 | { |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2791 | typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _Rp>::type& type; |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2792 | }; |
| 2793 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2794 | template <class _Rp, class _Class, class _Tp> |
| 2795 | struct __result_of_mdp<_Rp _Class::*, _Tp, true> |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2796 | { |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2797 | typedef typename __apply_cv<_Tp, _Rp>::type& type; |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2798 | }; |
| 2799 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 2800 | template <class _Rp, class _Class, class _Tp> |
| 2801 | struct __result_of_mp<_Rp _Class::*, _Tp, false> |
| 2802 | : public __result_of_mdp<_Rp _Class::*, _Tp, |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2803 | is_base_of<_Class, typename remove_reference<_Tp>::type>::value> |
| 2804 | { |
| 2805 | }; |
| 2806 | |
| 2807 | |
| 2808 | |
| 2809 | template <class _Fn, class _Tp> |
| 2810 | class __result_of<_Fn(_Tp), false, true> // _Fn must be member pointer |
| 2811 | : public __result_of_mp<typename remove_reference<_Fn>::type, |
| 2812 | _Tp, |
| 2813 | is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| 2814 | { |
| 2815 | }; |
| 2816 | |
| 2817 | template <class _Fn, class _Tp, class _A0> |
| 2818 | class __result_of<_Fn(_Tp, _A0), false, true> // _Fn must be member pointer |
| 2819 | : public __result_of_mp<typename remove_reference<_Fn>::type, |
| 2820 | _Tp, |
| 2821 | is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| 2822 | { |
| 2823 | }; |
| 2824 | |
| 2825 | template <class _Fn, class _Tp, class _A0, class _A1> |
| 2826 | class __result_of<_Fn(_Tp, _A0, _A1), false, true> // _Fn must be member pointer |
| 2827 | : public __result_of_mp<typename remove_reference<_Fn>::type, |
| 2828 | _Tp, |
| 2829 | is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| 2830 | { |
| 2831 | }; |
| 2832 | |
| 2833 | template <class _Fn, class _Tp, class _A0, class _A1, class _A2> |
| 2834 | class __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true> // _Fn must be member pointer |
| 2835 | : public __result_of_mp<typename remove_reference<_Fn>::type, |
| 2836 | _Tp, |
| 2837 | is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| 2838 | { |
| 2839 | }; |
| 2840 | |
| 2841 | // result_of |
| 2842 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2843 | template <class _Fn> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2844 | class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn()> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2845 | : public __result_of<_Fn(), |
| 2846 | is_class<typename remove_reference<_Fn>::type>::value || |
Eric Fiselier | 4983580 | 2015-06-13 08:25:24 +0000 | [diff] [blame] | 2847 | is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value, |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2848 | is_member_pointer<typename remove_reference<_Fn>::type>::value |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2849 | > |
| 2850 | { |
| 2851 | }; |
| 2852 | |
| 2853 | template <class _Fn, class _A0> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2854 | class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0)> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2855 | : public __result_of<_Fn(_A0), |
| 2856 | is_class<typename remove_reference<_Fn>::type>::value || |
Eric Fiselier | 4983580 | 2015-06-13 08:25:24 +0000 | [diff] [blame] | 2857 | is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value, |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2858 | is_member_pointer<typename remove_reference<_Fn>::type>::value |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2859 | > |
| 2860 | { |
| 2861 | }; |
| 2862 | |
| 2863 | template <class _Fn, class _A0, class _A1> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2864 | class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1)> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2865 | : public __result_of<_Fn(_A0, _A1), |
| 2866 | is_class<typename remove_reference<_Fn>::type>::value || |
Eric Fiselier | 4983580 | 2015-06-13 08:25:24 +0000 | [diff] [blame] | 2867 | is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value, |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2868 | is_member_pointer<typename remove_reference<_Fn>::type>::value |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2869 | > |
| 2870 | { |
| 2871 | }; |
| 2872 | |
| 2873 | template <class _Fn, class _A0, class _A1, class _A2> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2874 | class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1, _A2)> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2875 | : public __result_of<_Fn(_A0, _A1, _A2), |
| 2876 | is_class<typename remove_reference<_Fn>::type>::value || |
Eric Fiselier | 4983580 | 2015-06-13 08:25:24 +0000 | [diff] [blame] | 2877 | is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value, |
Howard Hinnant | 37c53b6 | 2011-05-16 16:17:21 +0000 | [diff] [blame] | 2878 | is_member_pointer<typename remove_reference<_Fn>::type>::value |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2879 | > |
| 2880 | { |
| 2881 | }; |
| 2882 | |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 2883 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2884 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2885 | // template <class T, class... Args> struct is_constructible; |
| 2886 | |
Marshall Clow | 067e91d | 2014-04-21 22:30:32 +0000 | [diff] [blame] | 2887 | namespace __is_construct |
| 2888 | { |
| 2889 | struct __nat {}; |
| 2890 | } |
| 2891 | |
| 2892 | #if __has_feature(is_constructible) |
| 2893 | |
| 2894 | template <class _Tp, class ..._Args> |
| 2895 | struct _LIBCPP_TYPE_VIS_ONLY is_constructible |
| 2896 | : public integral_constant<bool, __is_constructible(_Tp, _Args...)> |
| 2897 | {}; |
| 2898 | |
| 2899 | #else |
| 2900 | |
| 2901 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 2902 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2903 | // main is_constructible test |
| 2904 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2905 | |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2906 | struct __is_constructible_helper |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2907 | { |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2908 | template <class _Tp> |
| 2909 | static true_type __test_ref(_Tp); |
| 2910 | template <class> |
| 2911 | static false_type __test_ref(...); |
| 2912 | |
| 2913 | template <class _Tp, class ..._Args, |
| 2914 | class = decltype(_Tp(_VSTD::declval<_Args>()...))> |
| 2915 | static true_type __test_nary(int); |
| 2916 | template <class _Tp, class...> |
| 2917 | static false_type __test_nary(...); |
| 2918 | |
| 2919 | template <class _Tp, class _A0, class = decltype(::new _Tp(_VSTD::declval<_A0>()))> |
| 2920 | static is_destructible<_Tp> __test_unary(int); |
| 2921 | template <class, class> |
| 2922 | static false_type __test_unary(...); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2923 | }; |
| 2924 | |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2925 | template <class _Tp, bool = is_void<_Tp>::value> |
| 2926 | struct __is_default_constructible |
| 2927 | : decltype(__is_constructible_helper::__test_nary<_Tp>(0)) |
| 2928 | {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2929 | |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2930 | template <class _Tp> |
| 2931 | struct __is_default_constructible<_Tp, true> : false_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2932 | |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2933 | template <class _Tp> |
| 2934 | struct __is_default_constructible<_Tp[], false> : false_type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2935 | |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2936 | template <class _Tp, size_t _Nx> |
| 2937 | struct __is_default_constructible<_Tp[_Nx], false> |
| 2938 | : __is_default_constructible<typename remove_all_extents<_Tp>::type> {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2939 | |
| 2940 | template <class _Tp, class... _Args> |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2941 | struct __libcpp_is_constructible |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2942 | { |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2943 | static_assert(sizeof...(_Args) > 1, "Wrong specialization"); |
| 2944 | typedef decltype(__is_constructible_helper::__test_nary<_Tp, _Args...>(0)) |
| 2945 | type; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2946 | }; |
| 2947 | |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2948 | template <class _Tp> |
| 2949 | struct __libcpp_is_constructible<_Tp> : __is_default_constructible<_Tp> {}; |
| 2950 | |
| 2951 | template <class _Tp, class _A0> |
| 2952 | struct __libcpp_is_constructible<_Tp, _A0> |
| 2953 | : public decltype(__is_constructible_helper::__test_unary<_Tp, _A0>(0)) |
| 2954 | {}; |
| 2955 | |
| 2956 | template <class _Tp, class _A0> |
| 2957 | struct __libcpp_is_constructible<_Tp&, _A0> |
| 2958 | : public decltype(__is_constructible_helper:: |
| 2959 | __test_ref<_Tp&>(_VSTD::declval<_A0>())) |
| 2960 | {}; |
| 2961 | |
| 2962 | template <class _Tp, class _A0> |
| 2963 | struct __libcpp_is_constructible<_Tp&&, _A0> |
| 2964 | : public decltype(__is_constructible_helper:: |
| 2965 | __test_ref<_Tp&&>(_VSTD::declval<_A0>())) |
| 2966 | {}; |
| 2967 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2968 | // is_constructible entry point |
| 2969 | |
| 2970 | template <class _Tp, class... _Args> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 2971 | struct _LIBCPP_TYPE_VIS_ONLY is_constructible |
Eric Fiselier | 155b681 | 2016-07-20 05:01:24 +0000 | [diff] [blame] | 2972 | : public __libcpp_is_constructible<_Tp, _Args...>::type {}; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2973 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 2974 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2975 | #else // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 2976 | |
| 2977 | // template <class T> struct is_constructible0; |
| 2978 | |
| 2979 | // main is_constructible0 test |
| 2980 | |
| 2981 | template <class _Tp> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2982 | decltype((_Tp(), true_type())) |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 2983 | __is_constructible0_test(_Tp&); |
| 2984 | |
| 2985 | false_type |
| 2986 | __is_constructible0_test(__any); |
| 2987 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2988 | template <class _Tp, class _A0> |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 2989 | decltype((_Tp(_VSTD::declval<_A0>()), true_type())) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2990 | __is_constructible1_test(_Tp&, _A0&); |
| 2991 | |
| 2992 | template <class _A0> |
| 2993 | false_type |
| 2994 | __is_constructible1_test(__any, _A0&); |
| 2995 | |
| 2996 | template <class _Tp, class _A0, class _A1> |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 2997 | decltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>()), true_type())) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 2998 | __is_constructible2_test(_Tp&, _A0&, _A1&); |
| 2999 | |
| 3000 | template <class _A0, class _A1> |
| 3001 | false_type |
| 3002 | __is_constructible2_test(__any, _A0&, _A1&); |
| 3003 | |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3004 | template <bool, class _Tp> |
| 3005 | struct __is_constructible0_imp // false, _Tp is not a scalar |
| 3006 | : public common_type |
| 3007 | < |
| 3008 | decltype(__is_constructible0_test(declval<_Tp&>())) |
| 3009 | >::type |
| 3010 | {}; |
| 3011 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3012 | template <bool, class _Tp, class _A0> |
| 3013 | struct __is_constructible1_imp // false, _Tp is not a scalar |
| 3014 | : public common_type |
| 3015 | < |
| 3016 | decltype(__is_constructible1_test(declval<_Tp&>(), declval<_A0&>())) |
| 3017 | >::type |
| 3018 | {}; |
| 3019 | |
| 3020 | template <bool, class _Tp, class _A0, class _A1> |
| 3021 | struct __is_constructible2_imp // false, _Tp is not a scalar |
| 3022 | : public common_type |
| 3023 | < |
| 3024 | decltype(__is_constructible2_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>())) |
| 3025 | >::type |
| 3026 | {}; |
| 3027 | |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3028 | // handle scalars and reference types |
| 3029 | |
| 3030 | // Scalars are default constructible, references are not |
| 3031 | |
| 3032 | template <class _Tp> |
| 3033 | struct __is_constructible0_imp<true, _Tp> |
| 3034 | : public is_scalar<_Tp> |
| 3035 | {}; |
| 3036 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3037 | template <class _Tp, class _A0> |
| 3038 | struct __is_constructible1_imp<true, _Tp, _A0> |
| 3039 | : public is_convertible<_A0, _Tp> |
| 3040 | {}; |
| 3041 | |
| 3042 | template <class _Tp, class _A0, class _A1> |
| 3043 | struct __is_constructible2_imp<true, _Tp, _A0, _A1> |
| 3044 | : public false_type |
| 3045 | {}; |
| 3046 | |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3047 | // Treat scalars and reference types separately |
| 3048 | |
| 3049 | template <bool, class _Tp> |
| 3050 | struct __is_constructible0_void_check |
| 3051 | : public __is_constructible0_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| 3052 | _Tp> |
| 3053 | {}; |
| 3054 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3055 | template <bool, class _Tp, class _A0> |
| 3056 | struct __is_constructible1_void_check |
| 3057 | : public __is_constructible1_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| 3058 | _Tp, _A0> |
| 3059 | {}; |
| 3060 | |
| 3061 | template <bool, class _Tp, class _A0, class _A1> |
| 3062 | struct __is_constructible2_void_check |
| 3063 | : public __is_constructible2_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| 3064 | _Tp, _A0, _A1> |
| 3065 | {}; |
| 3066 | |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3067 | // If any of T or Args is void, is_constructible should be false |
| 3068 | |
| 3069 | template <class _Tp> |
| 3070 | struct __is_constructible0_void_check<true, _Tp> |
| 3071 | : public false_type |
| 3072 | {}; |
| 3073 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3074 | template <class _Tp, class _A0> |
| 3075 | struct __is_constructible1_void_check<true, _Tp, _A0> |
| 3076 | : public false_type |
| 3077 | {}; |
| 3078 | |
| 3079 | template <class _Tp, class _A0, class _A1> |
| 3080 | struct __is_constructible2_void_check<true, _Tp, _A0, _A1> |
| 3081 | : public false_type |
| 3082 | {}; |
| 3083 | |
| 3084 | // is_constructible entry point |
| 3085 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3086 | template <class _Tp, class _A0 = __is_construct::__nat, |
| 3087 | class _A1 = __is_construct::__nat> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3088 | struct _LIBCPP_TYPE_VIS_ONLY is_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3089 | : public __is_constructible2_void_check<is_void<_Tp>::value |
| 3090 | || is_abstract<_Tp>::value |
| 3091 | || is_function<_Tp>::value |
| 3092 | || is_void<_A0>::value |
| 3093 | || is_void<_A1>::value, |
| 3094 | _Tp, _A0, _A1> |
| 3095 | {}; |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3096 | |
| 3097 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3098 | struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat> |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3099 | : public __is_constructible0_void_check<is_void<_Tp>::value |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3100 | || is_abstract<_Tp>::value |
| 3101 | || is_function<_Tp>::value, |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3102 | _Tp> |
| 3103 | {}; |
| 3104 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3105 | template <class _Tp, class _A0> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3106 | struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, _A0, __is_construct::__nat> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3107 | : public __is_constructible1_void_check<is_void<_Tp>::value |
| 3108 | || is_abstract<_Tp>::value |
| 3109 | || is_function<_Tp>::value |
| 3110 | || is_void<_A0>::value, |
| 3111 | _Tp, _A0> |
| 3112 | {}; |
| 3113 | |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3114 | // Array types are default constructible if their element type |
| 3115 | // is default constructible |
| 3116 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3117 | template <class _Ap, size_t _Np> |
| 3118 | struct __is_constructible0_imp<false, _Ap[_Np]> |
| 3119 | : public is_constructible<typename remove_all_extents<_Ap>::type> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3120 | {}; |
| 3121 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3122 | template <class _Ap, size_t _Np, class _A0> |
| 3123 | struct __is_constructible1_imp<false, _Ap[_Np], _A0> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3124 | : public false_type |
| 3125 | {}; |
| 3126 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3127 | template <class _Ap, size_t _Np, class _A0, class _A1> |
| 3128 | struct __is_constructible2_imp<false, _Ap[_Np], _A0, _A1> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3129 | : public false_type |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3130 | {}; |
| 3131 | |
| 3132 | // Incomplete array types are not constructible |
| 3133 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3134 | template <class _Ap> |
| 3135 | struct __is_constructible0_imp<false, _Ap[]> |
Howard Hinnant | bb73d76 | 2010-09-07 17:47:31 +0000 | [diff] [blame] | 3136 | : public false_type |
| 3137 | {}; |
| 3138 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3139 | template <class _Ap, class _A0> |
| 3140 | struct __is_constructible1_imp<false, _Ap[], _A0> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3141 | : public false_type |
Howard Hinnant | 954b366 | 2010-09-07 23:11:28 +0000 | [diff] [blame] | 3142 | {}; |
| 3143 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3144 | template <class _Ap, class _A0, class _A1> |
| 3145 | struct __is_constructible2_imp<false, _Ap[], _A0, _A1> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3146 | : public false_type |
Howard Hinnant | 954b366 | 2010-09-07 23:11:28 +0000 | [diff] [blame] | 3147 | {}; |
| 3148 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3149 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Marshall Clow | 067e91d | 2014-04-21 22:30:32 +0000 | [diff] [blame] | 3150 | #endif // __has_feature(is_constructible) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3151 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3152 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| 3153 | template <class _Tp, class ..._Args> _LIBCPP_CONSTEXPR bool is_constructible_v |
| 3154 | = is_constructible<_Tp, _Args...>::value; |
| 3155 | #endif |
| 3156 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3157 | // is_default_constructible |
| 3158 | |
| 3159 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3160 | struct _LIBCPP_TYPE_VIS_ONLY is_default_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3161 | : public is_constructible<_Tp> |
| 3162 | {}; |
| 3163 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3164 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3165 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_default_constructible_v |
| 3166 | = is_default_constructible<_Tp>::value; |
| 3167 | #endif |
| 3168 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3169 | // is_copy_constructible |
| 3170 | |
| 3171 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3172 | struct _LIBCPP_TYPE_VIS_ONLY is_copy_constructible |
Marshall Clow | d132bf4 | 2014-09-22 23:58:00 +0000 | [diff] [blame] | 3173 | : public is_constructible<_Tp, |
| 3174 | typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3175 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3176 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3177 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_constructible_v |
| 3178 | = is_copy_constructible<_Tp>::value; |
| 3179 | #endif |
| 3180 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3181 | // is_move_constructible |
| 3182 | |
| 3183 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3184 | struct _LIBCPP_TYPE_VIS_ONLY is_move_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3185 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3186 | : public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> |
| 3187 | #else |
| 3188 | : public is_copy_constructible<_Tp> |
| 3189 | #endif |
| 3190 | {}; |
| 3191 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3192 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3193 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_constructible_v |
| 3194 | = is_move_constructible<_Tp>::value; |
| 3195 | #endif |
| 3196 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3197 | // is_trivially_constructible |
| 3198 | |
| 3199 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 3200 | |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 3201 | #if __has_feature(is_trivially_constructible) || _GNUC_VER >= 501 |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3202 | |
| 3203 | template <class _Tp, class... _Args> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3204 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3205 | : integral_constant<bool, __is_trivially_constructible(_Tp, _Args...)> |
| 3206 | { |
| 3207 | }; |
| 3208 | |
| 3209 | #else // !__has_feature(is_trivially_constructible) |
| 3210 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3211 | template <class _Tp, class... _Args> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3212 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3213 | : false_type |
| 3214 | { |
| 3215 | }; |
| 3216 | |
| 3217 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3218 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3219 | #if __has_feature(has_trivial_constructor) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3220 | : integral_constant<bool, __has_trivial_constructor(_Tp)> |
| 3221 | #else |
| 3222 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3223 | #endif |
| 3224 | { |
| 3225 | }; |
| 3226 | |
| 3227 | template <class _Tp> |
| 3228 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3229 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3230 | #else |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3231 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3232 | #endif |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3233 | : integral_constant<bool, is_scalar<_Tp>::value> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3234 | { |
| 3235 | }; |
| 3236 | |
| 3237 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3238 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3239 | : integral_constant<bool, is_scalar<_Tp>::value> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3240 | { |
| 3241 | }; |
| 3242 | |
| 3243 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3244 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3245 | : integral_constant<bool, is_scalar<_Tp>::value> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3246 | { |
| 3247 | }; |
| 3248 | |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3249 | #endif // !__has_feature(is_trivially_constructible) |
| 3250 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3251 | #else // _LIBCPP_HAS_NO_VARIADICS |
| 3252 | |
| 3253 | template <class _Tp, class _A0 = __is_construct::__nat, |
| 3254 | class _A1 = __is_construct::__nat> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3255 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3256 | : false_type |
| 3257 | { |
| 3258 | }; |
| 3259 | |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 3260 | #if __has_feature(is_trivially_constructible) || _GNUC_VER >= 501 |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3261 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3262 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3263 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3264 | __is_construct::__nat> |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3265 | : integral_constant<bool, __is_trivially_constructible(_Tp)> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3266 | { |
| 3267 | }; |
| 3268 | |
| 3269 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3270 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3271 | __is_construct::__nat> |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3272 | : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp)> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3273 | { |
| 3274 | }; |
| 3275 | |
| 3276 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3277 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3278 | __is_construct::__nat> |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3279 | : integral_constant<bool, __is_trivially_constructible(_Tp, const _Tp&)> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3280 | { |
| 3281 | }; |
| 3282 | |
| 3283 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3284 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3285 | __is_construct::__nat> |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3286 | : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp&)> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3287 | { |
| 3288 | }; |
| 3289 | |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3290 | #else // !__has_feature(is_trivially_constructible) |
| 3291 | |
| 3292 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3293 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat, |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3294 | __is_construct::__nat> |
| 3295 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3296 | { |
| 3297 | }; |
| 3298 | |
| 3299 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3300 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp, |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3301 | __is_construct::__nat> |
| 3302 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3303 | { |
| 3304 | }; |
| 3305 | |
| 3306 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3307 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&, |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3308 | __is_construct::__nat> |
| 3309 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3310 | { |
| 3311 | }; |
| 3312 | |
| 3313 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3314 | struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&, |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3315 | __is_construct::__nat> |
| 3316 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3317 | { |
| 3318 | }; |
| 3319 | |
| 3320 | #endif // !__has_feature(is_trivially_constructible) |
| 3321 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3322 | #endif // _LIBCPP_HAS_NO_VARIADICS |
| 3323 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3324 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
Marshall Clow | 55d741c | 2015-11-10 15:48:23 +0000 | [diff] [blame] | 3325 | template <class _Tp, class... _Args> _LIBCPP_CONSTEXPR bool is_trivially_constructible_v |
| 3326 | = is_trivially_constructible<_Tp, _Args...>::value; |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3327 | #endif |
| 3328 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3329 | // is_trivially_default_constructible |
| 3330 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3331 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_default_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3332 | : public is_trivially_constructible<_Tp> |
| 3333 | {}; |
| 3334 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3335 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3336 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_default_constructible_v |
| 3337 | = is_trivially_default_constructible<_Tp>::value; |
| 3338 | #endif |
| 3339 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3340 | // is_trivially_copy_constructible |
| 3341 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3342 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_constructible |
Howard Hinnant | 3f81e9e | 2013-11-13 00:39:22 +0000 | [diff] [blame] | 3343 | : public is_trivially_constructible<_Tp, typename add_lvalue_reference<const _Tp>::type> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3344 | {}; |
| 3345 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3346 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3347 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_constructible_v |
| 3348 | = is_trivially_copy_constructible<_Tp>::value; |
| 3349 | #endif |
| 3350 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3351 | // is_trivially_move_constructible |
| 3352 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3353 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3354 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3355 | : public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> |
| 3356 | #else |
| 3357 | : public is_trivially_copy_constructible<_Tp> |
| 3358 | #endif |
| 3359 | {}; |
| 3360 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3361 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3362 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_constructible_v |
| 3363 | = is_trivially_move_constructible<_Tp>::value; |
| 3364 | #endif |
| 3365 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3366 | // is_trivially_assignable |
| 3367 | |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 3368 | #if __has_feature(is_trivially_assignable) || _GNUC_VER >= 501 |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3369 | |
| 3370 | template <class _Tp, class _Arg> |
| 3371 | struct is_trivially_assignable |
| 3372 | : integral_constant<bool, __is_trivially_assignable(_Tp, _Arg)> |
| 3373 | { |
| 3374 | }; |
| 3375 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3376 | #else // !__has_feature(is_trivially_assignable) |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3377 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3378 | template <class _Tp, class _Arg> |
| 3379 | struct is_trivially_assignable |
| 3380 | : public false_type {}; |
| 3381 | |
| 3382 | template <class _Tp> |
| 3383 | struct is_trivially_assignable<_Tp&, _Tp> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3384 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3385 | |
| 3386 | template <class _Tp> |
| 3387 | struct is_trivially_assignable<_Tp&, _Tp&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3388 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3389 | |
| 3390 | template <class _Tp> |
| 3391 | struct is_trivially_assignable<_Tp&, const _Tp&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3392 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3393 | |
| 3394 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3395 | |
| 3396 | template <class _Tp> |
| 3397 | struct is_trivially_assignable<_Tp&, _Tp&&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3398 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3399 | |
| 3400 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3401 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3402 | #endif // !__has_feature(is_trivially_assignable) |
Howard Hinnant | 4300839 | 2012-02-24 23:32:26 +0000 | [diff] [blame] | 3403 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3404 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3405 | template <class _Tp, class _Arg> _LIBCPP_CONSTEXPR bool is_trivially_assignable_v |
| 3406 | = is_trivially_assignable<_Tp, _Arg>::value; |
| 3407 | #endif |
| 3408 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3409 | // is_trivially_copy_assignable |
| 3410 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3411 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_assignable |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3412 | : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, |
Marshall Clow | d132bf4 | 2014-09-22 23:58:00 +0000 | [diff] [blame] | 3413 | typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3414 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3415 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3416 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_assignable_v |
| 3417 | = is_trivially_copy_assignable<_Tp>::value; |
| 3418 | #endif |
| 3419 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3420 | // is_trivially_move_assignable |
| 3421 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3422 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_assignable |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3423 | : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, |
| 3424 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3425 | typename add_rvalue_reference<_Tp>::type> |
| 3426 | #else |
| 3427 | typename add_lvalue_reference<_Tp>::type> |
| 3428 | #endif |
| 3429 | {}; |
| 3430 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3431 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3432 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_assignable_v |
| 3433 | = is_trivially_move_assignable<_Tp>::value; |
| 3434 | #endif |
| 3435 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3436 | // is_trivially_destructible |
| 3437 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3438 | #if __has_feature(has_trivial_destructor) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3439 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3440 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible |
Marshall Clow | e33e03e | 2014-09-02 16:19:38 +0000 | [diff] [blame] | 3441 | : public integral_constant<bool, is_destructible<_Tp>::value && __has_trivial_destructor(_Tp)> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3442 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3443 | #else |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3444 | |
| 3445 | template <class _Tp> struct __libcpp_trivial_destructor |
| 3446 | : public integral_constant<bool, is_scalar<_Tp>::value || |
| 3447 | is_reference<_Tp>::value> {}; |
| 3448 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3449 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3450 | : public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {}; |
| 3451 | |
Eric Fiselier | 12c6d9c | 2015-07-18 16:43:58 +0000 | [diff] [blame] | 3452 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible<_Tp[]> |
| 3453 | : public false_type {}; |
| 3454 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3455 | #endif |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3456 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3457 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3458 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_destructible_v |
| 3459 | = is_trivially_destructible<_Tp>::value; |
| 3460 | #endif |
| 3461 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3462 | // is_nothrow_constructible |
| 3463 | |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 3464 | #if 0 |
| 3465 | template <class _Tp, class... _Args> |
| 3466 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
| 3467 | : public integral_constant<bool, __is_nothrow_constructible(_Tp(_Args...))> |
| 3468 | { |
| 3469 | }; |
| 3470 | |
| 3471 | #else |
| 3472 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3473 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 3474 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3475 | #if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L) |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3476 | |
Marshall Clow | df9722e | 2014-10-07 21:42:12 +0000 | [diff] [blame] | 3477 | template <bool, bool, class _Tp, class... _Args> struct __libcpp_is_nothrow_constructible; |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3478 | |
| 3479 | template <class _Tp, class... _Args> |
Marshall Clow | df9722e | 2014-10-07 21:42:12 +0000 | [diff] [blame] | 3480 | struct __libcpp_is_nothrow_constructible</*is constructible*/true, /*is reference*/false, _Tp, _Args...> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3481 | : public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))> |
| 3482 | { |
| 3483 | }; |
| 3484 | |
Marshall Clow | df9722e | 2014-10-07 21:42:12 +0000 | [diff] [blame] | 3485 | template <class _Tp> |
| 3486 | void __implicit_conversion_to(_Tp) noexcept { } |
| 3487 | |
| 3488 | template <class _Tp, class _Arg> |
| 3489 | struct __libcpp_is_nothrow_constructible</*is constructible*/true, /*is reference*/true, _Tp, _Arg> |
| 3490 | : public integral_constant<bool, noexcept(__implicit_conversion_to<_Tp>(declval<_Arg>()))> |
| 3491 | { |
| 3492 | }; |
| 3493 | |
| 3494 | template <class _Tp, bool _IsReference, class... _Args> |
| 3495 | struct __libcpp_is_nothrow_constructible</*is constructible*/false, _IsReference, _Tp, _Args...> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3496 | : public false_type |
| 3497 | { |
| 3498 | }; |
| 3499 | |
| 3500 | template <class _Tp, class... _Args> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3501 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
Marshall Clow | df9722e | 2014-10-07 21:42:12 +0000 | [diff] [blame] | 3502 | : __libcpp_is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, is_reference<_Tp>::value, _Tp, _Args...> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3503 | { |
| 3504 | }; |
| 3505 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3506 | template <class _Tp, size_t _Ns> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3507 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp[_Ns]> |
Marshall Clow | df9722e | 2014-10-07 21:42:12 +0000 | [diff] [blame] | 3508 | : __libcpp_is_nothrow_constructible<is_constructible<_Tp>::value, is_reference<_Tp>::value, _Tp> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3509 | { |
| 3510 | }; |
| 3511 | |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3512 | #else // __has_feature(cxx_noexcept) |
| 3513 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3514 | template <class _Tp, class... _Args> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3515 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3516 | : false_type |
| 3517 | { |
| 3518 | }; |
| 3519 | |
| 3520 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3521 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3522 | #if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3523 | : integral_constant<bool, __has_nothrow_constructor(_Tp)> |
| 3524 | #else |
| 3525 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3526 | #endif |
| 3527 | { |
| 3528 | }; |
| 3529 | |
| 3530 | template <class _Tp> |
| 3531 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3532 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&&> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3533 | #else |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3534 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp> |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3535 | #endif |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3536 | #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3537 | : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| 3538 | #else |
| 3539 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3540 | #endif |
| 3541 | { |
| 3542 | }; |
| 3543 | |
| 3544 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3545 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3546 | #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3547 | : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| 3548 | #else |
| 3549 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3550 | #endif |
| 3551 | { |
| 3552 | }; |
| 3553 | |
| 3554 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3555 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3556 | #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3557 | : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| 3558 | #else |
| 3559 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3560 | #endif |
| 3561 | { |
| 3562 | }; |
| 3563 | |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3564 | #endif // __has_feature(cxx_noexcept) |
| 3565 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3566 | #else // _LIBCPP_HAS_NO_VARIADICS |
| 3567 | |
| 3568 | template <class _Tp, class _A0 = __is_construct::__nat, |
| 3569 | class _A1 = __is_construct::__nat> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3570 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3571 | : false_type |
| 3572 | { |
| 3573 | }; |
| 3574 | |
| 3575 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3576 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, __is_construct::__nat, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3577 | __is_construct::__nat> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3578 | #if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3579 | : integral_constant<bool, __has_nothrow_constructor(_Tp)> |
| 3580 | #else |
| 3581 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3582 | #endif |
| 3583 | { |
| 3584 | }; |
| 3585 | |
| 3586 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3587 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3588 | __is_construct::__nat> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3589 | #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3590 | : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| 3591 | #else |
| 3592 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3593 | #endif |
| 3594 | { |
| 3595 | }; |
| 3596 | |
| 3597 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3598 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3599 | __is_construct::__nat> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3600 | #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3601 | : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| 3602 | #else |
| 3603 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3604 | #endif |
| 3605 | { |
| 3606 | }; |
| 3607 | |
| 3608 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3609 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&, |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3610 | __is_construct::__nat> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3611 | #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3612 | : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| 3613 | #else |
| 3614 | : integral_constant<bool, is_scalar<_Tp>::value> |
| 3615 | #endif |
| 3616 | { |
| 3617 | }; |
| 3618 | |
| 3619 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Marshall Clow | 4f3368e | 2014-05-29 01:10:28 +0000 | [diff] [blame] | 3620 | #endif // __has_feature(is_nothrow_constructible) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3621 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3622 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| 3623 | template <class _Tp, class ..._Args> _LIBCPP_CONSTEXPR bool is_nothrow_constructible_v |
| 3624 | = is_nothrow_constructible<_Tp, _Args...>::value; |
| 3625 | #endif |
| 3626 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3627 | // is_nothrow_default_constructible |
| 3628 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3629 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_default_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3630 | : public is_nothrow_constructible<_Tp> |
| 3631 | {}; |
| 3632 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3633 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3634 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_default_constructible_v |
| 3635 | = is_nothrow_default_constructible<_Tp>::value; |
| 3636 | #endif |
| 3637 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3638 | // is_nothrow_copy_constructible |
| 3639 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3640 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_copy_constructible |
Marshall Clow | d132bf4 | 2014-09-22 23:58:00 +0000 | [diff] [blame] | 3641 | : public is_nothrow_constructible<_Tp, |
| 3642 | typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3643 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3644 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3645 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_constructible_v |
| 3646 | = is_nothrow_copy_constructible<_Tp>::value; |
| 3647 | #endif |
| 3648 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3649 | // is_nothrow_move_constructible |
| 3650 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3651 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_move_constructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3652 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3653 | : public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> |
| 3654 | #else |
| 3655 | : public is_nothrow_copy_constructible<_Tp> |
| 3656 | #endif |
| 3657 | {}; |
| 3658 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3659 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3660 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_move_constructible_v |
| 3661 | = is_nothrow_move_constructible<_Tp>::value; |
| 3662 | #endif |
| 3663 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3664 | // is_nothrow_assignable |
| 3665 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3666 | #if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L) |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3667 | |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3668 | template <bool, class _Tp, class _Arg> struct __libcpp_is_nothrow_assignable; |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3669 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3670 | template <class _Tp, class _Arg> |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3671 | struct __libcpp_is_nothrow_assignable<false, _Tp, _Arg> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3672 | : public false_type |
| 3673 | { |
| 3674 | }; |
| 3675 | |
| 3676 | template <class _Tp, class _Arg> |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3677 | struct __libcpp_is_nothrow_assignable<true, _Tp, _Arg> |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 3678 | : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>()) > |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3679 | { |
| 3680 | }; |
| 3681 | |
| 3682 | template <class _Tp, class _Arg> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3683 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3684 | : public __libcpp_is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3685 | { |
| 3686 | }; |
| 3687 | |
| 3688 | #else // __has_feature(cxx_noexcept) |
| 3689 | |
| 3690 | template <class _Tp, class _Arg> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3691 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3692 | : public false_type {}; |
| 3693 | |
| 3694 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3695 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3696 | #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3697 | : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| 3698 | #else |
| 3699 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| 3700 | #endif |
| 3701 | |
| 3702 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3703 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp&> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3704 | #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3705 | : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| 3706 | #else |
| 3707 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| 3708 | #endif |
| 3709 | |
| 3710 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3711 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, const _Tp&> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3712 | #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3713 | : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| 3714 | #else |
| 3715 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| 3716 | #endif |
| 3717 | |
| 3718 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3719 | |
| 3720 | template <class _Tp> |
| 3721 | struct is_nothrow_assignable<_Tp&, _Tp&&> |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3722 | #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3723 | : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| 3724 | #else |
| 3725 | : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| 3726 | #endif |
| 3727 | |
| 3728 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3729 | |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3730 | #endif // __has_feature(cxx_noexcept) |
| 3731 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3732 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3733 | template <class _Tp, class _Arg> _LIBCPP_CONSTEXPR bool is_nothrow_assignable_v |
| 3734 | = is_nothrow_assignable<_Tp, _Arg>::value; |
| 3735 | #endif |
| 3736 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3737 | // is_nothrow_copy_assignable |
| 3738 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3739 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_copy_assignable |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3740 | : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, |
Marshall Clow | d132bf4 | 2014-09-22 23:58:00 +0000 | [diff] [blame] | 3741 | typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {}; |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3742 | |
Marshall Clow | 55d741c | 2015-11-10 15:48:23 +0000 | [diff] [blame] | 3743 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3744 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_assignable_v |
| 3745 | = is_nothrow_copy_assignable<_Tp>::value; |
| 3746 | #endif |
| 3747 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3748 | // is_nothrow_move_assignable |
| 3749 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3750 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_move_assignable |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3751 | : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, |
| 3752 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3753 | typename add_rvalue_reference<_Tp>::type> |
| 3754 | #else |
| 3755 | typename add_lvalue_reference<_Tp>::type> |
| 3756 | #endif |
| 3757 | {}; |
| 3758 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3759 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
Marshall Clow | 55d741c | 2015-11-10 15:48:23 +0000 | [diff] [blame] | 3760 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_move_assignable_v |
| 3761 | = is_nothrow_move_assignable<_Tp>::value; |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3762 | #endif |
| 3763 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3764 | // is_nothrow_destructible |
| 3765 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3766 | #if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L) |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3767 | |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3768 | template <bool, class _Tp> struct __libcpp_is_nothrow_destructible; |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3769 | |
| 3770 | template <class _Tp> |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3771 | struct __libcpp_is_nothrow_destructible<false, _Tp> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3772 | : public false_type |
| 3773 | { |
| 3774 | }; |
| 3775 | |
| 3776 | template <class _Tp> |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3777 | struct __libcpp_is_nothrow_destructible<true, _Tp> |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 3778 | : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>().~_Tp()) > |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3779 | { |
| 3780 | }; |
| 3781 | |
| 3782 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3783 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible |
Marshall Clow | 708dd84 | 2014-01-24 15:27:41 +0000 | [diff] [blame] | 3784 | : public __libcpp_is_nothrow_destructible<is_destructible<_Tp>::value, _Tp> |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3785 | { |
| 3786 | }; |
| 3787 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3788 | template <class _Tp, size_t _Ns> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3789 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp[_Ns]> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3790 | : public is_nothrow_destructible<_Tp> |
| 3791 | { |
| 3792 | }; |
| 3793 | |
| 3794 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3795 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3796 | : public true_type |
| 3797 | { |
| 3798 | }; |
| 3799 | |
| 3800 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 3801 | |
| 3802 | template <class _Tp> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3803 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&&> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3804 | : public true_type |
| 3805 | { |
| 3806 | }; |
| 3807 | |
| 3808 | #endif |
| 3809 | |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3810 | #else |
| 3811 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3812 | template <class _Tp> struct __libcpp_nothrow_destructor |
| 3813 | : public integral_constant<bool, is_scalar<_Tp>::value || |
| 3814 | is_reference<_Tp>::value> {}; |
| 3815 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3816 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3817 | : public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {}; |
| 3818 | |
Eric Fiselier | 12c6d9c | 2015-07-18 16:43:58 +0000 | [diff] [blame] | 3819 | template <class _Tp> |
| 3820 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp[]> |
| 3821 | : public false_type {}; |
| 3822 | |
Howard Hinnant | 5d37fb3 | 2011-05-11 20:19:40 +0000 | [diff] [blame] | 3823 | #endif |
| 3824 | |
Marshall Clow | 6455d85 | 2015-11-07 17:44:36 +0000 | [diff] [blame] | 3825 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3826 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_destructible_v |
| 3827 | = is_nothrow_destructible<_Tp>::value; |
| 3828 | #endif |
| 3829 | |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3830 | // is_pod |
| 3831 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3832 | #if __has_feature(is_pod) || (_GNUC_VER >= 403) |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3833 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3834 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3835 | : public integral_constant<bool, __is_pod(_Tp)> {}; |
| 3836 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3837 | #else |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3838 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3839 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod |
Howard Hinnant | 1468b66 | 2010-11-19 22:17:28 +0000 | [diff] [blame] | 3840 | : public integral_constant<bool, is_trivially_default_constructible<_Tp>::value && |
| 3841 | is_trivially_copy_constructible<_Tp>::value && |
| 3842 | is_trivially_copy_assignable<_Tp>::value && |
| 3843 | is_trivially_destructible<_Tp>::value> {}; |
| 3844 | |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3845 | #endif |
Howard Hinnant | 954b366 | 2010-09-07 23:11:28 +0000 | [diff] [blame] | 3846 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 3847 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3848 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_pod_v |
| 3849 | = is_pod<_Tp>::value; |
| 3850 | #endif |
| 3851 | |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 3852 | // is_literal_type; |
| 3853 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3854 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_literal_type |
Marshall Clow | 81aa3a7 | 2014-06-26 01:07:56 +0000 | [diff] [blame] | 3855 | #ifdef _LIBCPP_IS_LITERAL |
| 3856 | : public integral_constant<bool, _LIBCPP_IS_LITERAL(_Tp)> |
Howard Hinnant | 3666695 | 2011-05-09 19:21:17 +0000 | [diff] [blame] | 3857 | #else |
| 3858 | : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value || |
| 3859 | is_reference<typename remove_all_extents<_Tp>::type>::value> |
| 3860 | #endif |
| 3861 | {}; |
| 3862 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 3863 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3864 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_literal_type_v |
| 3865 | = is_literal_type<_Tp>::value; |
| 3866 | #endif |
| 3867 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3868 | // is_standard_layout; |
| 3869 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3870 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_standard_layout |
Marshall Clow | 48e7e9f | 2014-07-10 15:38:20 +0000 | [diff] [blame] | 3871 | #if __has_feature(is_standard_layout) || (_GNUC_VER >= 407) |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3872 | : public integral_constant<bool, __is_standard_layout(_Tp)> |
| 3873 | #else |
| 3874 | : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> |
| 3875 | #endif |
| 3876 | {}; |
| 3877 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 3878 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3879 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_standard_layout_v |
| 3880 | = is_standard_layout<_Tp>::value; |
| 3881 | #endif |
| 3882 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3883 | // is_trivially_copyable; |
| 3884 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3885 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copyable |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3886 | #if __has_feature(is_trivially_copyable) |
| 3887 | : public integral_constant<bool, __is_trivially_copyable(_Tp)> |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 3888 | #elif _GNUC_VER >= 501 |
| 3889 | : public integral_constant<bool, !is_volatile<_Tp>::value && __is_trivially_copyable(_Tp)> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3890 | #else |
| 3891 | : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> |
| 3892 | #endif |
| 3893 | {}; |
| 3894 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 3895 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3896 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copyable_v |
| 3897 | = is_trivially_copyable<_Tp>::value; |
| 3898 | #endif |
| 3899 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3900 | // is_trivial; |
| 3901 | |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 3902 | template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivial |
Eric Fiselier | eeeada1 | 2015-06-13 02:18:44 +0000 | [diff] [blame] | 3903 | #if __has_feature(is_trivial) || _GNUC_VER >= 407 |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3904 | : public integral_constant<bool, __is_trivial(_Tp)> |
| 3905 | #else |
| 3906 | : integral_constant<bool, is_trivially_copyable<_Tp>::value && |
Howard Hinnant | 5ec7f5a | 2011-05-14 18:20:45 +0000 | [diff] [blame] | 3907 | is_trivially_default_constructible<_Tp>::value> |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 3908 | #endif |
| 3909 | {}; |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 3910 | |
Marshall Clow | 94611a8 | 2015-11-01 20:24:59 +0000 | [diff] [blame] | 3911 | #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) |
| 3912 | template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivial_v |
| 3913 | = is_trivial<_Tp>::value; |
| 3914 | #endif |
| 3915 | |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 3916 | template <class _Tp> struct __is_reference_wrapper_impl : public false_type {}; |
| 3917 | template <class _Tp> struct __is_reference_wrapper_impl<reference_wrapper<_Tp> > : public true_type {}; |
| 3918 | template <class _Tp> struct __is_reference_wrapper |
| 3919 | : public __is_reference_wrapper_impl<typename remove_cv<_Tp>::type> {}; |
| 3920 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 3921 | #ifndef _LIBCPP_CXX03_LANG |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 3922 | |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3923 | // Check for complete types |
| 3924 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3925 | template <class ..._Tp> struct __check_complete; |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3926 | |
| 3927 | template <> |
| 3928 | struct __check_complete<> |
| 3929 | { |
| 3930 | }; |
| 3931 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3932 | template <class _Hp, class _T0, class ..._Tp> |
| 3933 | struct __check_complete<_Hp, _T0, _Tp...> |
| 3934 | : private __check_complete<_Hp>, |
| 3935 | private __check_complete<_T0, _Tp...> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3936 | { |
| 3937 | }; |
| 3938 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3939 | template <class _Hp> |
| 3940 | struct __check_complete<_Hp, _Hp> |
| 3941 | : private __check_complete<_Hp> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3942 | { |
| 3943 | }; |
| 3944 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3945 | template <class _Tp> |
| 3946 | struct __check_complete<_Tp> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3947 | { |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3948 | static_assert(sizeof(_Tp) > 0, "Type must be complete."); |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3949 | }; |
| 3950 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3951 | template <class _Tp> |
| 3952 | struct __check_complete<_Tp&> |
| 3953 | : private __check_complete<_Tp> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3954 | { |
| 3955 | }; |
| 3956 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3957 | template <class _Tp> |
| 3958 | struct __check_complete<_Tp&&> |
| 3959 | : private __check_complete<_Tp> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3960 | { |
| 3961 | }; |
| 3962 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3963 | template <class _Rp, class ..._Param> |
| 3964 | struct __check_complete<_Rp (*)(_Param...)> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 3965 | : private __check_complete<_Rp> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3966 | { |
| 3967 | }; |
| 3968 | |
Howard Hinnant | de8fc6b | 2013-08-14 21:28:31 +0000 | [diff] [blame] | 3969 | template <class ..._Param> |
| 3970 | struct __check_complete<void (*)(_Param...)> |
| 3971 | { |
| 3972 | }; |
| 3973 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3974 | template <class _Rp, class ..._Param> |
| 3975 | struct __check_complete<_Rp (_Param...)> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 3976 | : private __check_complete<_Rp> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3977 | { |
| 3978 | }; |
| 3979 | |
Howard Hinnant | de8fc6b | 2013-08-14 21:28:31 +0000 | [diff] [blame] | 3980 | template <class ..._Param> |
| 3981 | struct __check_complete<void (_Param...)> |
| 3982 | { |
| 3983 | }; |
| 3984 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3985 | template <class _Rp, class _Class, class ..._Param> |
| 3986 | struct __check_complete<_Rp (_Class::*)(_Param...)> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 3987 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3988 | { |
| 3989 | }; |
| 3990 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3991 | template <class _Rp, class _Class, class ..._Param> |
| 3992 | struct __check_complete<_Rp (_Class::*)(_Param...) const> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 3993 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 3994 | { |
| 3995 | }; |
| 3996 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 3997 | template <class _Rp, class _Class, class ..._Param> |
| 3998 | struct __check_complete<_Rp (_Class::*)(_Param...) volatile> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 3999 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4000 | { |
| 4001 | }; |
| 4002 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4003 | template <class _Rp, class _Class, class ..._Param> |
| 4004 | struct __check_complete<_Rp (_Class::*)(_Param...) const volatile> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4005 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4006 | { |
| 4007 | }; |
| 4008 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4009 | template <class _Rp, class _Class, class ..._Param> |
| 4010 | struct __check_complete<_Rp (_Class::*)(_Param...) &> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4011 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4012 | { |
| 4013 | }; |
| 4014 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4015 | template <class _Rp, class _Class, class ..._Param> |
| 4016 | struct __check_complete<_Rp (_Class::*)(_Param...) const&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4017 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4018 | { |
| 4019 | }; |
| 4020 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4021 | template <class _Rp, class _Class, class ..._Param> |
| 4022 | struct __check_complete<_Rp (_Class::*)(_Param...) volatile&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4023 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4024 | { |
| 4025 | }; |
| 4026 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4027 | template <class _Rp, class _Class, class ..._Param> |
| 4028 | struct __check_complete<_Rp (_Class::*)(_Param...) const volatile&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4029 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4030 | { |
| 4031 | }; |
| 4032 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4033 | template <class _Rp, class _Class, class ..._Param> |
| 4034 | struct __check_complete<_Rp (_Class::*)(_Param...) &&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4035 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4036 | { |
| 4037 | }; |
| 4038 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4039 | template <class _Rp, class _Class, class ..._Param> |
| 4040 | struct __check_complete<_Rp (_Class::*)(_Param...) const&&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4041 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4042 | { |
| 4043 | }; |
| 4044 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4045 | template <class _Rp, class _Class, class ..._Param> |
| 4046 | struct __check_complete<_Rp (_Class::*)(_Param...) volatile&&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4047 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4048 | { |
| 4049 | }; |
| 4050 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4051 | template <class _Rp, class _Class, class ..._Param> |
| 4052 | struct __check_complete<_Rp (_Class::*)(_Param...) const volatile&&> |
Howard Hinnant | e41f475 | 2012-07-20 18:56:07 +0000 | [diff] [blame] | 4053 | : private __check_complete<_Class> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4054 | { |
| 4055 | }; |
| 4056 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4057 | template <class _Rp, class _Class> |
| 4058 | struct __check_complete<_Rp _Class::*> |
Howard Hinnant | e003ce4 | 2011-05-22 00:09:02 +0000 | [diff] [blame] | 4059 | : private __check_complete<_Class> |
| 4060 | { |
| 4061 | }; |
| 4062 | |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4063 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4064 | template <class _Fp, class _A0, |
| 4065 | class _DecayFp = typename decay<_Fp>::type, |
| 4066 | class _DecayA0 = typename decay<_A0>::type, |
| 4067 | class _ClassT = typename __member_pointer_class_type<_DecayFp>::type> |
| 4068 | using __enable_if_bullet1 = typename enable_if |
| 4069 | < |
| 4070 | is_member_function_pointer<_DecayFp>::value |
| 4071 | && is_base_of<_ClassT, _DecayA0>::value |
| 4072 | >::type; |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4073 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4074 | template <class _Fp, class _A0, |
| 4075 | class _DecayFp = typename decay<_Fp>::type, |
| 4076 | class _DecayA0 = typename decay<_A0>::type> |
| 4077 | using __enable_if_bullet2 = typename enable_if |
| 4078 | < |
| 4079 | is_member_function_pointer<_DecayFp>::value |
| 4080 | && __is_reference_wrapper<_DecayA0>::value |
| 4081 | >::type; |
| 4082 | |
| 4083 | template <class _Fp, class _A0, |
| 4084 | class _DecayFp = typename decay<_Fp>::type, |
| 4085 | class _DecayA0 = typename decay<_A0>::type, |
| 4086 | class _ClassT = typename __member_pointer_class_type<_DecayFp>::type> |
| 4087 | using __enable_if_bullet3 = typename enable_if |
| 4088 | < |
| 4089 | is_member_function_pointer<_DecayFp>::value |
| 4090 | && !is_base_of<_ClassT, _DecayA0>::value |
| 4091 | && !__is_reference_wrapper<_DecayA0>::value |
| 4092 | >::type; |
| 4093 | |
| 4094 | template <class _Fp, class _A0, |
| 4095 | class _DecayFp = typename decay<_Fp>::type, |
| 4096 | class _DecayA0 = typename decay<_A0>::type, |
| 4097 | class _ClassT = typename __member_pointer_class_type<_DecayFp>::type> |
| 4098 | using __enable_if_bullet4 = typename enable_if |
| 4099 | < |
| 4100 | is_member_object_pointer<_DecayFp>::value |
| 4101 | && is_base_of<_ClassT, _DecayA0>::value |
| 4102 | >::type; |
| 4103 | |
| 4104 | template <class _Fp, class _A0, |
| 4105 | class _DecayFp = typename decay<_Fp>::type, |
| 4106 | class _DecayA0 = typename decay<_A0>::type> |
| 4107 | using __enable_if_bullet5 = typename enable_if |
| 4108 | < |
| 4109 | is_member_object_pointer<_DecayFp>::value |
| 4110 | && __is_reference_wrapper<_DecayA0>::value |
| 4111 | >::type; |
| 4112 | |
| 4113 | template <class _Fp, class _A0, |
| 4114 | class _DecayFp = typename decay<_Fp>::type, |
| 4115 | class _DecayA0 = typename decay<_A0>::type, |
| 4116 | class _ClassT = typename __member_pointer_class_type<_DecayFp>::type> |
| 4117 | using __enable_if_bullet6 = typename enable_if |
| 4118 | < |
| 4119 | is_member_object_pointer<_DecayFp>::value |
| 4120 | && !is_base_of<_ClassT, _DecayA0>::value |
| 4121 | && !__is_reference_wrapper<_DecayA0>::value |
| 4122 | >::type; |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4123 | |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4124 | // __invoke forward declarations |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4125 | |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4126 | // fall back - none of the bullets |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4127 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4128 | #define _LIBCPP_INVOKE_RETURN(...) \ |
| 4129 | noexcept(noexcept(__VA_ARGS__)) -> decltype(__VA_ARGS__) \ |
| 4130 | { return __VA_ARGS__; } |
| 4131 | |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4132 | template <class ..._Args> |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4133 | auto __invoke(__any, _Args&& ...__args) -> __nat; |
| 4134 | |
| 4135 | template <class ..._Args> |
| 4136 | auto __invoke_constexpr(__any, _Args&& ...__args) -> __nat; |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4137 | |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4138 | // bullets 1, 2 and 3 |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4139 | |
Howard Hinnant | ecc9742 | 2013-05-07 23:40:12 +0000 | [diff] [blame] | 4140 | template <class _Fp, class _A0, class ..._Args, |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4141 | class = __enable_if_bullet1<_Fp, _A0>> |
| 4142 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4143 | auto |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4144 | __invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args) |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4145 | _LIBCPP_INVOKE_RETURN((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...)) |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4146 | |
Howard Hinnant | ecc9742 | 2013-05-07 23:40:12 +0000 | [diff] [blame] | 4147 | template <class _Fp, class _A0, class ..._Args, |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4148 | class = __enable_if_bullet1<_Fp, _A0>> |
| 4149 | inline _LIBCPP_INLINE_VISIBILITY |
| 4150 | _LIBCPP_CONSTEXPR auto |
| 4151 | __invoke_constexpr(_Fp&& __f, _A0&& __a0, _Args&& ...__args) |
| 4152 | _LIBCPP_INVOKE_RETURN((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...)) |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4153 | |
| 4154 | template <class _Fp, class _A0, class ..._Args, |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4155 | class = __enable_if_bullet2<_Fp, _A0>> |
| 4156 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4157 | auto |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4158 | __invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args) |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4159 | _LIBCPP_INVOKE_RETURN((__a0.get().*__f)(_VSTD::forward<_Args>(__args)...)) |
| 4160 | |
| 4161 | template <class _Fp, class _A0, class ..._Args, |
| 4162 | class = __enable_if_bullet2<_Fp, _A0>> |
| 4163 | inline _LIBCPP_INLINE_VISIBILITY |
| 4164 | _LIBCPP_CONSTEXPR auto |
| 4165 | __invoke_constexpr(_Fp&& __f, _A0&& __a0, _Args&& ...__args) |
| 4166 | _LIBCPP_INVOKE_RETURN((__a0.get().*__f)(_VSTD::forward<_Args>(__args)...)) |
| 4167 | |
| 4168 | template <class _Fp, class _A0, class ..._Args, |
| 4169 | class = __enable_if_bullet3<_Fp, _A0>> |
| 4170 | inline _LIBCPP_INLINE_VISIBILITY |
| 4171 | auto |
| 4172 | __invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args) |
| 4173 | _LIBCPP_INVOKE_RETURN(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...)) |
| 4174 | |
| 4175 | template <class _Fp, class _A0, class ..._Args, |
| 4176 | class = __enable_if_bullet3<_Fp, _A0>> |
| 4177 | inline _LIBCPP_INLINE_VISIBILITY |
| 4178 | _LIBCPP_CONSTEXPR auto |
| 4179 | __invoke_constexpr(_Fp&& __f, _A0&& __a0, _Args&& ...__args) |
| 4180 | _LIBCPP_INVOKE_RETURN(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...)) |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4181 | |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4182 | // bullets 4, 5 and 6 |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4183 | |
Howard Hinnant | ecc9742 | 2013-05-07 23:40:12 +0000 | [diff] [blame] | 4184 | template <class _Fp, class _A0, |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4185 | class = __enable_if_bullet4<_Fp, _A0>> |
| 4186 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4187 | auto |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4188 | __invoke(_Fp&& __f, _A0&& __a0) |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4189 | _LIBCPP_INVOKE_RETURN(_VSTD::forward<_A0>(__a0).*__f) |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4190 | |
Howard Hinnant | ecc9742 | 2013-05-07 23:40:12 +0000 | [diff] [blame] | 4191 | template <class _Fp, class _A0, |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4192 | class = __enable_if_bullet4<_Fp, _A0>> |
| 4193 | inline _LIBCPP_INLINE_VISIBILITY |
| 4194 | _LIBCPP_CONSTEXPR auto |
| 4195 | __invoke_constexpr(_Fp&& __f, _A0&& __a0) |
| 4196 | _LIBCPP_INVOKE_RETURN(_VSTD::forward<_A0>(__a0).*__f) |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4197 | |
| 4198 | template <class _Fp, class _A0, |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4199 | class = __enable_if_bullet5<_Fp, _A0>> |
| 4200 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4201 | auto |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4202 | __invoke(_Fp&& __f, _A0&& __a0) |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4203 | _LIBCPP_INVOKE_RETURN(__a0.get().*__f) |
| 4204 | |
| 4205 | template <class _Fp, class _A0, |
| 4206 | class = __enable_if_bullet5<_Fp, _A0>> |
| 4207 | inline _LIBCPP_INLINE_VISIBILITY |
| 4208 | _LIBCPP_CONSTEXPR auto |
| 4209 | __invoke_constexpr(_Fp&& __f, _A0&& __a0) |
| 4210 | _LIBCPP_INVOKE_RETURN(__a0.get().*__f) |
| 4211 | |
| 4212 | template <class _Fp, class _A0, |
| 4213 | class = __enable_if_bullet6<_Fp, _A0>> |
| 4214 | inline _LIBCPP_INLINE_VISIBILITY |
| 4215 | auto |
| 4216 | __invoke(_Fp&& __f, _A0&& __a0) |
| 4217 | _LIBCPP_INVOKE_RETURN((*_VSTD::forward<_A0>(__a0)).*__f) |
| 4218 | |
| 4219 | template <class _Fp, class _A0, |
| 4220 | class = __enable_if_bullet6<_Fp, _A0>> |
| 4221 | inline _LIBCPP_INLINE_VISIBILITY |
| 4222 | _LIBCPP_CONSTEXPR auto |
| 4223 | __invoke_constexpr(_Fp&& __f, _A0&& __a0) |
| 4224 | _LIBCPP_INVOKE_RETURN((*_VSTD::forward<_A0>(__a0)).*__f) |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4225 | |
Eric Fiselier | 134ff65 | 2016-04-18 06:17:30 +0000 | [diff] [blame] | 4226 | // bullet 7 |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4227 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4228 | template <class _Fp, class ..._Args> |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4229 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4230 | auto |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4231 | __invoke(_Fp&& __f, _Args&& ...__args) |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4232 | _LIBCPP_INVOKE_RETURN(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...)) |
| 4233 | |
| 4234 | template <class _Fp, class ..._Args> |
| 4235 | inline _LIBCPP_INLINE_VISIBILITY |
| 4236 | _LIBCPP_CONSTEXPR auto |
| 4237 | __invoke_constexpr(_Fp&& __f, _Args&& ...__args) |
| 4238 | _LIBCPP_INVOKE_RETURN(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...)) |
| 4239 | |
| 4240 | #undef _LIBCPP_INVOKE_RETURN |
Howard Hinnant | bd89e4b | 2011-05-20 22:02:53 +0000 | [diff] [blame] | 4241 | |
| 4242 | // __invokable |
| 4243 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4244 | template <class _Ret, class _Fp, class ..._Args> |
| 4245 | struct __invokable_r |
Howard Hinnant | c425307 | 2012-07-16 16:17:34 +0000 | [diff] [blame] | 4246 | : private __check_complete<_Fp> |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4247 | { |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4248 | using _Result = decltype( |
| 4249 | _VSTD::__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...)); |
| 4250 | |
| 4251 | static const bool value = |
| 4252 | conditional< |
| 4253 | !is_same<_Result, __nat>::value, |
| 4254 | typename conditional< |
| 4255 | is_void<_Ret>::value, |
| 4256 | true_type, |
| 4257 | is_convertible<_Result, _Ret> |
| 4258 | >::type, |
| 4259 | false_type |
| 4260 | >::type::value; |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4261 | }; |
| 4262 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4263 | template <class _Fp, class ..._Args> |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4264 | using __invokable = __invokable_r<void, _Fp, _Args...>; |
| 4265 | |
| 4266 | template <bool _IsInvokable, bool _IsCVVoid, class _Ret, class _Fp, class ..._Args> |
| 4267 | struct __nothrow_invokable_r_imp { |
| 4268 | static const bool value = false; |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4269 | }; |
| 4270 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4271 | template <class _Ret, class _Fp, class ..._Args> |
| 4272 | struct __nothrow_invokable_r_imp<true, false, _Ret, _Fp, _Args...> |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4273 | { |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4274 | typedef __nothrow_invokable_r_imp _ThisT; |
| 4275 | |
| 4276 | template <class _Tp> |
| 4277 | static void __test_noexcept(_Tp) noexcept; |
| 4278 | |
| 4279 | static const bool value = noexcept(_ThisT::__test_noexcept<_Ret>( |
| 4280 | _VSTD::__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...))); |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4281 | }; |
| 4282 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4283 | template <class _Ret, class _Fp, class ..._Args> |
| 4284 | struct __nothrow_invokable_r_imp<true, true, _Ret, _Fp, _Args...> |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4285 | { |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4286 | static const bool value = noexcept( |
| 4287 | _VSTD::__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...)); |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4288 | }; |
| 4289 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4290 | template <class _Ret, class _Fp, class ..._Args> |
| 4291 | using __nothrow_invokable_r = |
| 4292 | __nothrow_invokable_r_imp< |
| 4293 | __invokable_r<_Ret, _Fp, _Args...>::value, |
| 4294 | is_void<_Ret>::value, |
| 4295 | _Ret, _Fp, _Args... |
| 4296 | >; |
| 4297 | |
Howard Hinnant | 9996844 | 2011-11-29 18:15:50 +0000 | [diff] [blame] | 4298 | template <class _Fp, class ..._Args> |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4299 | struct __invoke_of |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4300 | : public enable_if< |
| 4301 | __invokable<_Fp, _Args...>::value, |
| 4302 | typename __invokable_r<void, _Fp, _Args...>::_Result> |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4303 | { |
| 4304 | }; |
| 4305 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4306 | // result_of |
| 4307 | |
Howard Hinnant | 2d62229 | 2012-06-26 17:37:15 +0000 | [diff] [blame] | 4308 | template <class _Fp, class ..._Args> |
Howard Hinnant | 0f678bd | 2013-08-12 18:38:34 +0000 | [diff] [blame] | 4309 | class _LIBCPP_TYPE_VIS_ONLY result_of<_Fp(_Args...)> |
Howard Hinnant | 2d62229 | 2012-06-26 17:37:15 +0000 | [diff] [blame] | 4310 | : public __invoke_of<_Fp, _Args...> |
| 4311 | { |
| 4312 | }; |
| 4313 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 4314 | #if _LIBCPP_STD_VER > 11 |
| 4315 | template <class _Tp> using result_of_t = typename result_of<_Tp>::type; |
| 4316 | #endif |
| 4317 | |
Eric Fiselier | 8d5cbd7 | 2016-04-20 00:14:32 +0000 | [diff] [blame] | 4318 | #if _LIBCPP_STD_VER > 14 |
| 4319 | |
| 4320 | // is_callable |
| 4321 | |
| 4322 | template <class _Fn, class _Ret = void> |
| 4323 | struct _LIBCPP_TYPE_VIS_ONLY is_callable; |
| 4324 | |
| 4325 | template <class _Fn, class ..._Args, class _Ret> |
| 4326 | struct _LIBCPP_TYPE_VIS_ONLY is_callable<_Fn(_Args...), _Ret> |
| 4327 | : integral_constant<bool, __invokable_r<_Ret, _Fn, _Args...>::value> {}; |
| 4328 | |
| 4329 | template <class _Fn, class _Ret = void> |
| 4330 | constexpr bool is_callable_v = is_callable<_Fn, _Ret>::value; |
| 4331 | |
| 4332 | // is_nothrow_callable |
| 4333 | |
| 4334 | template <class _Fn, class _Ret = void> |
| 4335 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_callable; |
| 4336 | |
| 4337 | template <class _Fn, class ..._Args, class _Ret> |
| 4338 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_callable<_Fn(_Args...), _Ret> |
| 4339 | : integral_constant<bool, __nothrow_invokable_r<_Ret, _Fn, _Args...>::value> |
| 4340 | {}; |
| 4341 | |
| 4342 | template <class _Fn, class _Ret = void> |
| 4343 | constexpr bool is_nothrow_callable_v = is_nothrow_callable<_Fn, _Ret>::value; |
| 4344 | |
| 4345 | #endif // _LIBCPP_STD_VER > 14 |
| 4346 | |
| 4347 | #endif // !defined(_LIBCPP_CXX03_LANG) |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 4348 | |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4349 | template <class _Tp> struct __is_swappable; |
| 4350 | template <class _Tp> struct __is_nothrow_swappable; |
| 4351 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4352 | template <class _Tp> |
| 4353 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | d36369d | 2011-07-27 18:34:06 +0000 | [diff] [blame] | 4354 | #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE |
Howard Hinnant | 1694d23 | 2011-05-28 14:41:13 +0000 | [diff] [blame] | 4355 | typename enable_if |
| 4356 | < |
| 4357 | is_move_constructible<_Tp>::value && |
| 4358 | is_move_assignable<_Tp>::value |
| 4359 | >::type |
Howard Hinnant | d36369d | 2011-07-27 18:34:06 +0000 | [diff] [blame] | 4360 | #else |
| 4361 | void |
| 4362 | #endif |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 4363 | swap(_Tp& __x, _Tp& __y) _NOEXCEPT_(is_nothrow_move_constructible<_Tp>::value && |
| 4364 | is_nothrow_move_assignable<_Tp>::value) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4365 | { |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 4366 | _Tp __t(_VSTD::move(__x)); |
| 4367 | __x = _VSTD::move(__y); |
| 4368 | __y = _VSTD::move(__t); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4369 | } |
| 4370 | |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4371 | template<class _Tp, size_t _Np> |
| 4372 | inline _LIBCPP_INLINE_VISIBILITY |
| 4373 | typename enable_if< |
| 4374 | __is_swappable<_Tp>::value |
| 4375 | >::type |
| 4376 | swap(_Tp (&__a)[_Np], _Tp (&__b)[_Np]) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value); |
| 4377 | |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 4378 | template <class _ForwardIterator1, class _ForwardIterator2> |
| 4379 | inline _LIBCPP_INLINE_VISIBILITY |
| 4380 | void |
| 4381 | iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b) |
| 4382 | // _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b))) |
Howard Hinnant | 0949eed | 2011-06-30 21:18:19 +0000 | [diff] [blame] | 4383 | _NOEXCEPT_(_NOEXCEPT_(swap(*_VSTD::declval<_ForwardIterator1>(), |
| 4384 | *_VSTD::declval<_ForwardIterator2>()))) |
Howard Hinnant | e9b2c2d | 2011-05-27 15:04:19 +0000 | [diff] [blame] | 4385 | { |
| 4386 | swap(*__a, *__b); |
| 4387 | } |
| 4388 | |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4389 | // __swappable |
| 4390 | |
Howard Hinnant | 1694d23 | 2011-05-28 14:41:13 +0000 | [diff] [blame] | 4391 | namespace __detail |
| 4392 | { |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4393 | // ALL generic swap overloads MUST already have a declaration available at this point. |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4394 | |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4395 | template <class _Tp, class _Up = _Tp, |
| 4396 | bool _NotVoid = !is_void<_Tp>::value && !is_void<_Up>::value> |
| 4397 | struct __swappable_with |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4398 | { |
Eric Fiselier | 45e9a93 | 2016-07-11 19:57:13 +0000 | [diff] [blame] | 4399 | template <class _LHS, class _RHS> |
| 4400 | static decltype(swap(_VSTD::declval<_LHS>(), _VSTD::declval<_RHS>())) |
| 4401 | __test_swap(int); |
| 4402 | template <class, class> |
| 4403 | static __nat __test_swap(long); |
| 4404 | |
| 4405 | // Extra parens are needed for the C++03 definition of decltype. |
| 4406 | typedef decltype((__test_swap<_Tp, _Up>(0))) __swap1; |
| 4407 | typedef decltype((__test_swap<_Up, _Tp>(0))) __swap2; |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4408 | |
| 4409 | static const bool value = !is_same<__swap1, __nat>::value |
| 4410 | && !is_same<__swap2, __nat>::value; |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4411 | }; |
| 4412 | |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4413 | template <class _Tp, class _Up> |
| 4414 | struct __swappable_with<_Tp, _Up, false> : false_type {}; |
| 4415 | |
| 4416 | template <class _Tp, class _Up = _Tp, bool _Swappable = __swappable_with<_Tp, _Up>::value> |
| 4417 | struct __nothrow_swappable_with { |
| 4418 | static const bool value = |
| 4419 | #ifndef _LIBCPP_HAS_NO_NOEXCEPT |
| 4420 | noexcept(swap(_VSTD::declval<_Tp>(), _VSTD::declval<_Up>())) |
| 4421 | && noexcept(swap(_VSTD::declval<_Up>(), _VSTD::declval<_Tp>())); |
| 4422 | #else |
| 4423 | false; |
| 4424 | #endif |
| 4425 | }; |
| 4426 | |
| 4427 | template <class _Tp, class _Up> |
| 4428 | struct __nothrow_swappable_with<_Tp, _Up, false> : false_type {}; |
| 4429 | |
Howard Hinnant | 1694d23 | 2011-05-28 14:41:13 +0000 | [diff] [blame] | 4430 | } // __detail |
| 4431 | |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4432 | template <class _Tp> |
| 4433 | struct __is_swappable |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4434 | : public integral_constant<bool, __detail::__swappable_with<_Tp&>::value> |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4435 | { |
| 4436 | }; |
| 4437 | |
| 4438 | template <class _Tp> |
| 4439 | struct __is_nothrow_swappable |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4440 | : public integral_constant<bool, __detail::__nothrow_swappable_with<_Tp&>::value> |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4441 | { |
| 4442 | }; |
| 4443 | |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4444 | #if _LIBCPP_STD_VER > 14 |
| 4445 | |
| 4446 | template <class _Tp, class _Up> |
| 4447 | struct _LIBCPP_TYPE_VIS_ONLY is_swappable_with |
| 4448 | : public integral_constant<bool, __detail::__swappable_with<_Tp, _Up>::value> |
| 4449 | { |
| 4450 | }; |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4451 | |
| 4452 | template <class _Tp> |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4453 | struct _LIBCPP_TYPE_VIS_ONLY is_swappable |
| 4454 | : public conditional< |
| 4455 | __is_referenceable<_Tp>::value, |
| 4456 | is_swappable_with< |
| 4457 | typename add_lvalue_reference<_Tp>::type, |
| 4458 | typename add_lvalue_reference<_Tp>::type>, |
| 4459 | false_type |
| 4460 | >::type |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4461 | { |
| 4462 | }; |
| 4463 | |
Eric Fiselier | 8f1e73d | 2016-04-21 23:38:59 +0000 | [diff] [blame] | 4464 | template <class _Tp, class _Up> |
| 4465 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_swappable_with |
| 4466 | : public integral_constant<bool, __detail::__nothrow_swappable_with<_Tp, _Up>::value> |
| 4467 | { |
| 4468 | }; |
| 4469 | |
| 4470 | template <class _Tp> |
| 4471 | struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_swappable |
| 4472 | : public conditional< |
| 4473 | __is_referenceable<_Tp>::value, |
| 4474 | is_nothrow_swappable_with< |
| 4475 | typename add_lvalue_reference<_Tp>::type, |
| 4476 | typename add_lvalue_reference<_Tp>::type>, |
| 4477 | false_type |
| 4478 | >::type |
| 4479 | { |
| 4480 | }; |
| 4481 | |
| 4482 | template <class _Tp, class _Up> |
| 4483 | constexpr bool is_swappable_with_v = is_swappable_with<_Tp, _Up>::value; |
| 4484 | |
| 4485 | template <class _Tp> |
| 4486 | constexpr bool is_swappable_v = is_swappable<_Tp>::value; |
| 4487 | |
| 4488 | template <class _Tp, class _Up> |
| 4489 | constexpr bool is_nothrow_swappable_with_v = is_nothrow_swappable_with<_Tp, _Up>::value; |
| 4490 | |
| 4491 | template <class _Tp> |
| 4492 | constexpr bool is_nothrow_swappable_v = is_nothrow_swappable<_Tp>::value; |
| 4493 | |
| 4494 | #endif // _LIBCPP_STD_VER > 14 |
Howard Hinnant | a5e0121 | 2011-05-27 19:08:18 +0000 | [diff] [blame] | 4495 | |
Marshall Clow | 81aa3a7 | 2014-06-26 01:07:56 +0000 | [diff] [blame] | 4496 | #ifdef _LIBCPP_UNDERLYING_TYPE |
Sean Hunt | 737a351 | 2011-07-18 18:37:21 +0000 | [diff] [blame] | 4497 | |
| 4498 | template <class _Tp> |
| 4499 | struct underlying_type |
| 4500 | { |
Marshall Clow | 81aa3a7 | 2014-06-26 01:07:56 +0000 | [diff] [blame] | 4501 | typedef _LIBCPP_UNDERLYING_TYPE(_Tp) type; |
Sean Hunt | 737a351 | 2011-07-18 18:37:21 +0000 | [diff] [blame] | 4502 | }; |
| 4503 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 4504 | #if _LIBCPP_STD_VER > 11 |
| 4505 | template <class _Tp> using underlying_type_t = typename underlying_type<_Tp>::type; |
| 4506 | #endif |
| 4507 | |
Marshall Clow | 81aa3a7 | 2014-06-26 01:07:56 +0000 | [diff] [blame] | 4508 | #else // _LIBCPP_UNDERLYING_TYPE |
Sean Hunt | 737a351 | 2011-07-18 18:37:21 +0000 | [diff] [blame] | 4509 | |
| 4510 | template <class _Tp, bool _Support = false> |
| 4511 | struct underlying_type |
| 4512 | { |
| 4513 | static_assert(_Support, "The underyling_type trait requires compiler " |
| 4514 | "support. Either no such support exists or " |
| 4515 | "libc++ does not know how to use it."); |
| 4516 | }; |
| 4517 | |
Marshall Clow | 81aa3a7 | 2014-06-26 01:07:56 +0000 | [diff] [blame] | 4518 | #endif // _LIBCPP_UNDERLYING_TYPE |
Sean Hunt | 737a351 | 2011-07-18 18:37:21 +0000 | [diff] [blame] | 4519 | |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4520 | |
Eric Fiselier | 14273e8 | 2016-05-18 23:09:24 +0000 | [diff] [blame] | 4521 | template <class _Tp, bool = is_enum<_Tp>::value> |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4522 | struct __sfinae_underlying_type |
| 4523 | { |
| 4524 | typedef typename underlying_type<_Tp>::type type; |
| 4525 | typedef decltype(((type)1) + 0) __promoted_type; |
| 4526 | }; |
| 4527 | |
| 4528 | template <class _Tp> |
| 4529 | struct __sfinae_underlying_type<_Tp, false> {}; |
| 4530 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4531 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4532 | int __convert_to_integral(int __val) { return __val; } |
| 4533 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4534 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4535 | unsigned __convert_to_integral(unsigned __val) { return __val; } |
| 4536 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4537 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4538 | long __convert_to_integral(long __val) { return __val; } |
| 4539 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4540 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4541 | unsigned long __convert_to_integral(unsigned long __val) { return __val; } |
| 4542 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4543 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4544 | long long __convert_to_integral(long long __val) { return __val; } |
| 4545 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4546 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4547 | unsigned long long __convert_to_integral(unsigned long long __val) {return __val; } |
| 4548 | |
| 4549 | #ifndef _LIBCPP_HAS_NO_INT128 |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4550 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4551 | __int128_t __convert_to_integral(__int128_t __val) { return __val; } |
| 4552 | |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4553 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4554 | __uint128_t __convert_to_integral(__uint128_t __val) { return __val; } |
| 4555 | #endif |
| 4556 | |
| 4557 | template <class _Tp> |
Eric Fiselier | bbca174 | 2015-12-10 00:43:37 +0000 | [diff] [blame] | 4558 | inline _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 31cb7fe | 2015-02-10 16:46:42 +0000 | [diff] [blame] | 4559 | typename __sfinae_underlying_type<_Tp>::__promoted_type |
| 4560 | __convert_to_integral(_Tp __val) { return __val; } |
| 4561 | |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4562 | #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE |
| 4563 | |
| 4564 | template <class _Tp> |
Eric Fiselier | 341b590 | 2014-11-05 20:59:18 +0000 | [diff] [blame] | 4565 | struct __has_operator_addressof_member_imp |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4566 | { |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4567 | template <class _Up> |
Eric Fiselier | b6e0ef2 | 2014-11-05 21:20:10 +0000 | [diff] [blame] | 4568 | static auto __test(int) |
| 4569 | -> typename __select_2nd<decltype(_VSTD::declval<_Up>().operator&()), true_type>::type; |
| 4570 | template <class> |
| 4571 | static auto __test(long) -> false_type; |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4572 | |
Eric Fiselier | b6e0ef2 | 2014-11-05 21:20:10 +0000 | [diff] [blame] | 4573 | static const bool value = decltype(__test<_Tp>(0))::value; |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4574 | }; |
| 4575 | |
| 4576 | template <class _Tp> |
Eric Fiselier | 341b590 | 2014-11-05 20:59:18 +0000 | [diff] [blame] | 4577 | struct __has_operator_addressof_free_imp |
| 4578 | { |
Eric Fiselier | 341b590 | 2014-11-05 20:59:18 +0000 | [diff] [blame] | 4579 | template <class _Up> |
Eric Fiselier | b6e0ef2 | 2014-11-05 21:20:10 +0000 | [diff] [blame] | 4580 | static auto __test(int) |
| 4581 | -> typename __select_2nd<decltype(operator&(_VSTD::declval<_Up>())), true_type>::type; |
| 4582 | template <class> |
| 4583 | static auto __test(long) -> false_type; |
Eric Fiselier | 341b590 | 2014-11-05 20:59:18 +0000 | [diff] [blame] | 4584 | |
Eric Fiselier | b6e0ef2 | 2014-11-05 21:20:10 +0000 | [diff] [blame] | 4585 | static const bool value = decltype(__test<_Tp>(0))::value; |
Eric Fiselier | 341b590 | 2014-11-05 20:59:18 +0000 | [diff] [blame] | 4586 | }; |
| 4587 | |
| 4588 | template <class _Tp> |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4589 | struct __has_operator_addressof |
Eric Fiselier | 341b590 | 2014-11-05 20:59:18 +0000 | [diff] [blame] | 4590 | : public integral_constant<bool, __has_operator_addressof_member_imp<_Tp>::value |
| 4591 | || __has_operator_addressof_free_imp<_Tp>::value> |
Howard Hinnant | 01afa5c | 2013-09-02 20:30:37 +0000 | [diff] [blame] | 4592 | {}; |
| 4593 | |
| 4594 | #endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE |
| 4595 | |
Marshall Clow | 88aae92 | 2014-11-17 15:50:08 +0000 | [diff] [blame] | 4596 | #if _LIBCPP_STD_VER > 14 |
| 4597 | template <class...> using void_t = void; |
Marshall Clow | fe99a30 | 2015-11-16 15:54:13 +0000 | [diff] [blame] | 4598 | |
| 4599 | # ifndef _LIBCPP_HAS_NO_VARIADICS |
| 4600 | template <class... _Args> |
| 4601 | struct conjunction : __and_<_Args...> {}; |
| 4602 | template<class... _Args> constexpr bool conjunction_v = conjunction<_Args...>::value; |
| 4603 | |
| 4604 | template <class... _Args> |
| 4605 | struct disjunction : __or_<_Args...> {}; |
| 4606 | template<class... _Args> constexpr bool disjunction_v = disjunction<_Args...>::value; |
| 4607 | |
| 4608 | template <class _Tp> |
| 4609 | struct negation : __not_<_Tp> {}; |
| 4610 | template<class _Tp> constexpr bool negation_v = negation<_Tp>::value; |
| 4611 | # endif // _LIBCPP_HAS_NO_VARIADICS |
| 4612 | #endif // _LIBCPP_STD_VER > 14 |
Marshall Clow | 88aae92 | 2014-11-17 15:50:08 +0000 | [diff] [blame] | 4613 | |
Eric Fiselier | 83c9dc1 | 2016-04-15 23:27:27 +0000 | [diff] [blame] | 4614 | // These traits are used in __tree and __hash_table |
| 4615 | #ifndef _LIBCPP_CXX03_LANG |
| 4616 | struct __extract_key_fail_tag {}; |
| 4617 | struct __extract_key_self_tag {}; |
| 4618 | struct __extract_key_first_tag {}; |
| 4619 | |
| 4620 | template <class _ValTy, class _Key, |
| 4621 | class _RawValTy = typename __unconstref<_ValTy>::type> |
| 4622 | struct __can_extract_key |
| 4623 | : conditional<is_same<_RawValTy, _Key>::value, __extract_key_self_tag, |
| 4624 | __extract_key_fail_tag>::type {}; |
| 4625 | |
| 4626 | template <class _Pair, class _Key, class _First, class _Second> |
| 4627 | struct __can_extract_key<_Pair, _Key, pair<_First, _Second>> |
| 4628 | : conditional<is_same<typename remove_const<_First>::type, _Key>::value, |
| 4629 | __extract_key_first_tag, __extract_key_fail_tag>::type {}; |
Eric Fiselier | dc414cd | 2016-04-16 00:23:12 +0000 | [diff] [blame] | 4630 | |
| 4631 | // __can_extract_map_key uses true_type/false_type instead of the tags. |
| 4632 | // It returns true if _Key != _ContainerValueTy (the container is a map not a set) |
| 4633 | // and _ValTy == _Key. |
| 4634 | template <class _ValTy, class _Key, class _ContainerValueTy, |
| 4635 | class _RawValTy = typename __unconstref<_ValTy>::type> |
| 4636 | struct __can_extract_map_key |
| 4637 | : integral_constant<bool, is_same<_RawValTy, _Key>::value> {}; |
| 4638 | |
| 4639 | // This specialization returns __extract_key_fail_tag for non-map containers |
| 4640 | // because _Key == _ContainerValueTy |
| 4641 | template <class _ValTy, class _Key, class _RawValTy> |
| 4642 | struct __can_extract_map_key<_ValTy, _Key, _Key, _RawValTy> |
| 4643 | : false_type {}; |
| 4644 | |
Eric Fiselier | 83c9dc1 | 2016-04-15 23:27:27 +0000 | [diff] [blame] | 4645 | #endif |
| 4646 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4647 | _LIBCPP_END_NAMESPACE_STD |
| 4648 | |
| 4649 | #endif // _LIBCPP_TYPE_TRAITS |