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0001 // -*- C++ -*-
0002 //===----------------------------------------------------------------------===//
0003 //
0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0005 // See https://llvm.org/LICENSE.txt for license information.
0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0007 //
0008 //===----------------------------------------------------------------------===//
0009
0010 #ifndef _LIBCPP_TYPE_TRAITS
0011 #define _LIBCPP_TYPE_TRAITS
0012
0013 /*
0014 type_traits synopsis
0015
0016 namespace std
0017 {
0018
0019 // helper class:
0020 template <class T, T v> struct integral_constant;
0021 typedef integral_constant<bool, true> true_type; // C++11
0022 typedef integral_constant<bool, false> false_type; // C++11
0023
0024 template <bool B> // C++14
0025 using bool_constant = integral_constant<bool, B>; // C++14
0026 typedef bool_constant<true> true_type; // C++14
0027 typedef bool_constant<false> false_type; // C++14
0028
0029 // helper traits
0030 template <bool, class T = void> struct enable_if;
0031 template <bool, class T, class F> struct conditional;
0032
0033 // Primary classification traits:
0034 template <class T> struct is_void;
0035 template <class T> struct is_null_pointer; // C++14
0036 template <class T> struct is_integral;
0037 template <class T> struct is_floating_point;
0038 template <class T> struct is_array;
0039 template <class T> struct is_pointer;
0040 template <class T> struct is_lvalue_reference;
0041 template <class T> struct is_rvalue_reference;
0042 template <class T> struct is_member_object_pointer;
0043 template <class T> struct is_member_function_pointer;
0044 template <class T> struct is_enum;
0045 template <class T> struct is_union;
0046 template <class T> struct is_class;
0047 template <class T> struct is_function;
0048
0049 // Secondary classification traits:
0050 template <class T> struct is_reference;
0051 template <class T> struct is_arithmetic;
0052 template <class T> struct is_fundamental;
0053 template <class T> struct is_member_pointer;
0054 template <class T> struct is_scoped_enum; // C++23
0055 template <class T> struct is_scalar;
0056 template <class T> struct is_object;
0057 template <class T> struct is_compound;
0058
0059 // Const-volatile properties and transformations:
0060 template <class T> struct is_const;
0061 template <class T> struct is_volatile;
0062 template <class T> struct remove_const;
0063 template <class T> struct remove_volatile;
0064 template <class T> struct remove_cv;
0065 template <class T> struct add_const;
0066 template <class T> struct add_volatile;
0067 template <class T> struct add_cv;
0068
0069 // Reference transformations:
0070 template <class T> struct remove_reference;
0071 template <class T> struct add_lvalue_reference;
0072 template <class T> struct add_rvalue_reference;
0073
0074 // Pointer transformations:
0075 template <class T> struct remove_pointer;
0076 template <class T> struct add_pointer;
0077
0078 template<class T> struct type_identity; // C++20
0079 template<class T>
0080 using type_identity_t = typename type_identity<T>::type; // C++20
0081
0082 // Integral properties:
0083 template <class T> struct is_signed;
0084 template <class T> struct is_unsigned;
0085 template <class T> struct make_signed;
0086 template <class T> struct make_unsigned;
0087
0088 // Array properties and transformations:
0089 template <class T> struct rank;
0090 template <class T, unsigned I = 0> struct extent;
0091 template <class T> struct remove_extent;
0092 template <class T> struct remove_all_extents;
0093
0094 template <class T> struct is_bounded_array; // C++20
0095 template <class T> struct is_unbounded_array; // C++20
0096
0097 // Member introspection:
0098 template <class T> struct is_pod;
0099 template <class T> struct is_trivial;
0100 template <class T> struct is_trivially_copyable;
0101 template <class T> struct is_standard_layout;
0102 template <class T> struct is_literal_type; // Deprecated in C++17; removed in C++20
0103 template <class T> struct is_empty;
0104 template <class T> struct is_polymorphic;
0105 template <class T> struct is_abstract;
0106 template <class T> struct is_final; // C++14
0107 template <class T> struct is_aggregate; // C++17
0108
0109 template <class T, class... Args> struct is_constructible;
0110 template <class T> struct is_default_constructible;
0111 template <class T> struct is_copy_constructible;
0112 template <class T> struct is_move_constructible;
0113 template <class T, class U> struct is_assignable;
0114 template <class T> struct is_copy_assignable;
0115 template <class T> struct is_move_assignable;
0116 template <class T, class U> struct is_swappable_with; // C++17
0117 template <class T> struct is_swappable; // C++17
0118 template <class T> struct is_destructible;
0119
0120 template <class T, class... Args> struct is_trivially_constructible;
0121 template <class T> struct is_trivially_default_constructible;
0122 template <class T> struct is_trivially_copy_constructible;
0123 template <class T> struct is_trivially_move_constructible;
0124 template <class T, class U> struct is_trivially_assignable;
0125 template <class T> struct is_trivially_copy_assignable;
0126 template <class T> struct is_trivially_move_assignable;
0127 template <class T> struct is_trivially_destructible;
0128
0129 template <class T, class... Args> struct is_nothrow_constructible;
0130 template <class T> struct is_nothrow_default_constructible;
0131 template <class T> struct is_nothrow_copy_constructible;
0132 template <class T> struct is_nothrow_move_constructible;
0133 template <class T, class U> struct is_nothrow_assignable;
0134 template <class T> struct is_nothrow_copy_assignable;
0135 template <class T> struct is_nothrow_move_assignable;
0136 template <class T, class U> struct is_nothrow_swappable_with; // C++17
0137 template <class T> struct is_nothrow_swappable; // C++17
0138 template <class T> struct is_nothrow_destructible;
0139
0140 template<class T> struct is_implicit_lifetime; // Since C++23
0141
0142 template <class T> struct has_virtual_destructor;
0143
0144 template<class T> struct has_unique_object_representations; // C++17
0145
0146 // Relationships between types:
0147 template <class T, class U> struct is_same;
0148 template <class Base, class Derived> struct is_base_of;
0149 template <class Base, class Derived> struct is_virtual_base_of; // C++26
0150
0151 template <class From, class To> struct is_convertible;
0152 template <typename From, typename To> struct is_nothrow_convertible; // C++20
0153 template <typename From, typename To> inline constexpr bool is_nothrow_convertible_v; // C++20
0154
0155 template <class Fn, class... ArgTypes> struct is_invocable;
0156 template <class R, class Fn, class... ArgTypes> struct is_invocable_r;
0157
0158 template <class Fn, class... ArgTypes> struct is_nothrow_invocable;
0159 template <class R, class Fn, class... ArgTypes> struct is_nothrow_invocable_r;
0160
0161 // Alignment properties and transformations:
0162 template <class T> struct alignment_of;
0163 template <size_t Len, size_t Align = most_stringent_alignment_requirement>
0164 struct aligned_storage; // deprecated in C++23
0165 template <size_t Len, class... Types> struct aligned_union; // deprecated in C++23
0166 template <class T> struct remove_cvref; // C++20
0167
0168 template <class T> struct decay;
0169 template <class... T> struct common_type;
0170 template <class T> struct underlying_type;
0171 template <class> class result_of; // undefined; deprecated in C++17; removed in C++20
0172 template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>; // deprecated in C++17; removed in C++20
0173 template <class Fn, class... ArgTypes> struct invoke_result; // C++17
0174
0175 // const-volatile modifications:
0176 template <class T>
0177 using remove_const_t = typename remove_const<T>::type; // C++14
0178 template <class T>
0179 using remove_volatile_t = typename remove_volatile<T>::type; // C++14
0180 template <class T>
0181 using remove_cv_t = typename remove_cv<T>::type; // C++14
0182 template <class T>
0183 using add_const_t = typename add_const<T>::type; // C++14
0184 template <class T>
0185 using add_volatile_t = typename add_volatile<T>::type; // C++14
0186 template <class T>
0187 using add_cv_t = typename add_cv<T>::type; // C++14
0188
0189 // reference modifications:
0190 template <class T>
0191 using remove_reference_t = typename remove_reference<T>::type; // C++14
0192 template <class T>
0193 using add_lvalue_reference_t = typename add_lvalue_reference<T>::type; // C++14
0194 template <class T>
0195 using add_rvalue_reference_t = typename add_rvalue_reference<T>::type; // C++14
0196
0197 // sign modifications:
0198 template <class T>
0199 using make_signed_t = typename make_signed<T>::type; // C++14
0200 template <class T>
0201 using make_unsigned_t = typename make_unsigned<T>::type; // C++14
0202
0203 // array modifications:
0204 template <class T>
0205 using remove_extent_t = typename remove_extent<T>::type; // C++14
0206 template <class T>
0207 using remove_all_extents_t = typename remove_all_extents<T>::type; // C++14
0208
0209 template <class T>
0210 inline constexpr bool is_bounded_array_v
0211 = is_bounded_array<T>::value; // C++20
0212 inline constexpr bool is_unbounded_array_v
0213 = is_unbounded_array<T>::value; // C++20
0214
0215 // pointer modifications:
0216 template <class T>
0217 using remove_pointer_t = typename remove_pointer<T>::type; // C++14
0218 template <class T>
0219 using add_pointer_t = typename add_pointer<T>::type; // C++14
0220
0221 // other transformations:
0222 template <size_t Len, size_t Align=default-alignment>
0223 using aligned_storage_t = typename aligned_storage<Len,Align>::type; // C++14
0224 template <size_t Len, class... Types>
0225 using aligned_union_t = typename aligned_union<Len,Types...>::type; // C++14
0226 template <class T>
0227 using remove_cvref_t = typename remove_cvref<T>::type; // C++20
0228 template <class T>
0229 using decay_t = typename decay<T>::type; // C++14
0230 template <bool b, class T=void>
0231 using enable_if_t = typename enable_if<b,T>::type; // C++14
0232 template <bool b, class T, class F>
0233 using conditional_t = typename conditional<b,T,F>::type; // C++14
0234 template <class... T>
0235 using common_type_t = typename common_type<T...>::type; // C++14
0236 template <class T>
0237 using underlying_type_t = typename underlying_type<T>::type; // C++14
0238 template <class T>
0239 using result_of_t = typename result_of<T>::type; // C++14; deprecated in C++17; removed in C++20
0240 template <class Fn, class... ArgTypes>
0241 using invoke_result_t = typename invoke_result<Fn, ArgTypes...>::type; // C++17
0242
0243 template <class...>
0244 using void_t = void; // C++17
0245
0246 // See C++14 20.10.4.1, primary type categories
0247 template <class T> inline constexpr bool is_void_v
0248 = is_void<T>::value; // C++17
0249 template <class T> inline constexpr bool is_null_pointer_v
0250 = is_null_pointer<T>::value; // C++17
0251 template <class T> inline constexpr bool is_integral_v
0252 = is_integral<T>::value; // C++17
0253 template <class T> inline constexpr bool is_floating_point_v
0254 = is_floating_point<T>::value; // C++17
0255 template <class T> inline constexpr bool is_array_v
0256 = is_array<T>::value; // C++17
0257 template <class T> inline constexpr bool is_pointer_v
0258 = is_pointer<T>::value; // C++17
0259 template <class T> inline constexpr bool is_lvalue_reference_v
0260 = is_lvalue_reference<T>::value; // C++17
0261 template <class T> inline constexpr bool is_rvalue_reference_v
0262 = is_rvalue_reference<T>::value; // C++17
0263 template <class T> inline constexpr bool is_member_object_pointer_v
0264 = is_member_object_pointer<T>::value; // C++17
0265 template <class T> inline constexpr bool is_member_function_pointer_v
0266 = is_member_function_pointer<T>::value; // C++17
0267 template <class T> inline constexpr bool is_enum_v
0268 = is_enum<T>::value; // C++17
0269 template <class T> inline constexpr bool is_union_v
0270 = is_union<T>::value; // C++17
0271 template <class T> inline constexpr bool is_class_v
0272 = is_class<T>::value; // C++17
0273 template <class T> inline constexpr bool is_function_v
0274 = is_function<T>::value; // C++17
0275
0276 // See C++14 20.10.4.2, composite type categories
0277 template <class T> inline constexpr bool is_reference_v
0278 = is_reference<T>::value; // C++17
0279 template <class T> inline constexpr bool is_arithmetic_v
0280 = is_arithmetic<T>::value; // C++17
0281 template <class T> inline constexpr bool is_fundamental_v
0282 = is_fundamental<T>::value; // C++17
0283 template <class T> inline constexpr bool is_object_v
0284 = is_object<T>::value; // C++17
0285 template <class T> inline constexpr bool is_scalar_v
0286 = is_scalar<T>::value; // C++17
0287 template <class T> inline constexpr bool is_compound_v
0288 = is_compound<T>::value; // C++17
0289 template <class T> inline constexpr bool is_member_pointer_v
0290 = is_member_pointer<T>::value; // C++17
0291 template <class T> inline constexpr bool is_scoped_enum_v
0292 = is_scoped_enum<T>::value; // C++23
0293
0294 // See C++14 20.10.4.3, type properties
0295 template <class T> inline constexpr bool is_const_v
0296 = is_const<T>::value; // C++17
0297 template <class T> inline constexpr bool is_volatile_v
0298 = is_volatile<T>::value; // C++17
0299 template <class T> inline constexpr bool is_trivial_v
0300 = is_trivial<T>::value; // C++17
0301 template <class T> inline constexpr bool is_trivially_copyable_v
0302 = is_trivially_copyable<T>::value; // C++17
0303 template <class T> inline constexpr bool is_standard_layout_v
0304 = is_standard_layout<T>::value; // C++17
0305 template <class T> inline constexpr bool is_pod_v
0306 = is_pod<T>::value; // C++17
0307 template <class T> inline constexpr bool is_literal_type_v
0308 = is_literal_type<T>::value; // C++17; deprecated in C++17; removed in C++20
0309 template <class T> inline constexpr bool is_empty_v
0310 = is_empty<T>::value; // C++17
0311 template <class T> inline constexpr bool is_polymorphic_v
0312 = is_polymorphic<T>::value; // C++17
0313 template <class T> inline constexpr bool is_abstract_v
0314 = is_abstract<T>::value; // C++17
0315 template <class T> inline constexpr bool is_final_v
0316 = is_final<T>::value; // C++17
0317 template <class T> inline constexpr bool is_aggregate_v
0318 = is_aggregate<T>::value; // C++17
0319 template <class T> inline constexpr bool is_signed_v
0320 = is_signed<T>::value; // C++17
0321 template <class T> inline constexpr bool is_unsigned_v
0322 = is_unsigned<T>::value; // C++17
0323 template <class T, class... Args> inline constexpr bool is_constructible_v
0324 = is_constructible<T, Args...>::value; // C++17
0325 template <class T> inline constexpr bool is_default_constructible_v
0326 = is_default_constructible<T>::value; // C++17
0327 template <class T> inline constexpr bool is_copy_constructible_v
0328 = is_copy_constructible<T>::value; // C++17
0329 template <class T> inline constexpr bool is_move_constructible_v
0330 = is_move_constructible<T>::value; // C++17
0331 template <class T, class U> inline constexpr bool is_assignable_v
0332 = is_assignable<T, U>::value; // C++17
0333 template <class T> inline constexpr bool is_copy_assignable_v
0334 = is_copy_assignable<T>::value; // C++17
0335 template <class T> inline constexpr bool is_move_assignable_v
0336 = is_move_assignable<T>::value; // C++17
0337 template <class T, class U> inline constexpr bool is_swappable_with_v
0338 = is_swappable_with<T, U>::value; // C++17
0339 template <class T> inline constexpr bool is_swappable_v
0340 = is_swappable<T>::value; // C++17
0341 template <class T> inline constexpr bool is_destructible_v
0342 = is_destructible<T>::value; // C++17
0343 template <class T, class... Args> inline constexpr bool is_trivially_constructible_v
0344 = is_trivially_constructible<T, Args...>::value; // C++17
0345 template <class T> inline constexpr bool is_trivially_default_constructible_v
0346 = is_trivially_default_constructible<T>::value; // C++17
0347 template <class T> inline constexpr bool is_trivially_copy_constructible_v
0348 = is_trivially_copy_constructible<T>::value; // C++17
0349 template <class T> inline constexpr bool is_trivially_move_constructible_v
0350 = is_trivially_move_constructible<T>::value; // C++17
0351 template <class T, class U> inline constexpr bool is_trivially_assignable_v
0352 = is_trivially_assignable<T, U>::value; // C++17
0353 template <class T> inline constexpr bool is_trivially_copy_assignable_v
0354 = is_trivially_copy_assignable<T>::value; // C++17
0355 template <class T> inline constexpr bool is_trivially_move_assignable_v
0356 = is_trivially_move_assignable<T>::value; // C++17
0357 template <class T> inline constexpr bool is_trivially_destructible_v
0358 = is_trivially_destructible<T>::value; // C++17
0359 template <class T, class... Args> inline constexpr bool is_nothrow_constructible_v
0360 = is_nothrow_constructible<T, Args...>::value; // C++17
0361 template <class T> inline constexpr bool is_nothrow_default_constructible_v
0362 = is_nothrow_default_constructible<T>::value; // C++17
0363 template <class T> inline constexpr bool is_nothrow_copy_constructible_v
0364 = is_nothrow_copy_constructible<T>::value; // C++17
0365 template <class T> inline constexpr bool is_nothrow_move_constructible_v
0366 = is_nothrow_move_constructible<T>::value; // C++17
0367 template <class T, class U> inline constexpr bool is_nothrow_assignable_v
0368 = is_nothrow_assignable<T, U>::value; // C++17
0369 template <class T> inline constexpr bool is_nothrow_copy_assignable_v
0370 = is_nothrow_copy_assignable<T>::value; // C++17
0371 template <class T> inline constexpr bool is_nothrow_move_assignable_v
0372 = is_nothrow_move_assignable<T>::value; // C++17
0373 template <class T, class U> inline constexpr bool is_nothrow_swappable_with_v
0374 = is_nothrow_swappable_with<T, U>::value; // C++17
0375 template <class T> inline constexpr bool is_nothrow_swappable_v
0376 = is_nothrow_swappable<T>::value; // C++17
0377 template <class T> inline constexpr bool is_nothrow_destructible_v
0378 = is_nothrow_destructible<T>::value; // C++17
0379 template<class T>
0380 constexpr bool is_implicit_lifetime_v = is_implicit_lifetime<T>::value; // Since C++23
0381 template <class T> inline constexpr bool has_virtual_destructor_v
0382 = has_virtual_destructor<T>::value; // C++17
0383 template<class T> inline constexpr bool has_unique_object_representations_v // C++17
0384 = has_unique_object_representations<T>::value;
0385
0386 // See C++14 20.10.5, type property queries
0387 template <class T> inline constexpr size_t alignment_of_v
0388 = alignment_of<T>::value; // C++17
0389 template <class T> inline constexpr size_t rank_v
0390 = rank<T>::value; // C++17
0391 template <class T, unsigned I = 0> inline constexpr size_t extent_v
0392 = extent<T, I>::value; // C++17
0393
0394 // See C++14 20.10.6, type relations
0395 template <class T, class U> inline constexpr bool is_same_v
0396 = is_same<T, U>::value; // C++17
0397 template <class Base, class Derived> inline constexpr bool is_base_of_v
0398 = is_base_of<Base, Derived>::value; // C++17
0399 template <class Base, class Derived> inline constexpr bool is_virtual_base_of_v
0400 = is_virtual_base_of<Base, Derived>::value; // C++26
0401 template <class From, class To> inline constexpr bool is_convertible_v
0402 = is_convertible<From, To>::value; // C++17
0403 template <class Fn, class... ArgTypes> inline constexpr bool is_invocable_v
0404 = is_invocable<Fn, ArgTypes...>::value; // C++17
0405 template <class R, class Fn, class... ArgTypes> inline constexpr bool is_invocable_r_v
0406 = is_invocable_r<R, Fn, ArgTypes...>::value; // C++17
0407 template <class Fn, class... ArgTypes> inline constexpr bool is_nothrow_invocable_v
0408 = is_nothrow_invocable<Fn, ArgTypes...>::value; // C++17
0409 template <class R, class Fn, class... ArgTypes> inline constexpr bool is_nothrow_invocable_r_v
0410 = is_nothrow_invocable_r<R, Fn, ArgTypes...>::value; // C++17
0411
0412 // [meta.logical], logical operator traits:
0413 template<class... B> struct conjunction; // C++17
0414 template<class... B>
0415 inline constexpr bool conjunction_v = conjunction<B...>::value; // C++17
0416 template<class... B> struct disjunction; // C++17
0417 template<class... B>
0418 inline constexpr bool disjunction_v = disjunction<B...>::value; // C++17
0419 template<class B> struct negation; // C++17
0420 template<class B>
0421 inline constexpr bool negation_v = negation<B>::value; // C++17
0422
0423 }
0424
0425 */
0426
0427 #if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
0428 # include <__cxx03/type_traits>
0429 #else
0430 # include <__config>
0431 # include <__type_traits/add_cv_quals.h>
0432 # include <__type_traits/add_lvalue_reference.h>
0433 # include <__type_traits/add_pointer.h>
0434 # include <__type_traits/add_rvalue_reference.h>
0435 # include <__type_traits/aligned_storage.h>
0436 # include <__type_traits/aligned_union.h>
0437 # include <__type_traits/alignment_of.h>
0438 # include <__type_traits/common_type.h>
0439 # include <__type_traits/conditional.h>
0440 # include <__type_traits/decay.h>
0441 # include <__type_traits/enable_if.h>
0442 # include <__type_traits/extent.h>
0443 # include <__type_traits/has_virtual_destructor.h>
0444 # include <__type_traits/integral_constant.h>
0445 # include <__type_traits/is_abstract.h>
0446 # include <__type_traits/is_arithmetic.h>
0447 # include <__type_traits/is_array.h>
0448 # include <__type_traits/is_assignable.h>
0449 # include <__type_traits/is_base_of.h>
0450 # include <__type_traits/is_class.h>
0451 # include <__type_traits/is_compound.h>
0452 # include <__type_traits/is_const.h>
0453 # include <__type_traits/is_constructible.h>
0454 # include <__type_traits/is_convertible.h>
0455 # include <__type_traits/is_destructible.h>
0456 # include <__type_traits/is_empty.h>
0457 # include <__type_traits/is_enum.h>
0458 # include <__type_traits/is_floating_point.h>
0459 # include <__type_traits/is_function.h>
0460 # include <__type_traits/is_fundamental.h>
0461 # include <__type_traits/is_integral.h>
0462 # include <__type_traits/is_literal_type.h>
0463 # include <__type_traits/is_member_pointer.h>
0464 # include <__type_traits/is_nothrow_assignable.h>
0465 # include <__type_traits/is_nothrow_constructible.h>
0466 # include <__type_traits/is_nothrow_destructible.h>
0467 # include <__type_traits/is_object.h>
0468 # include <__type_traits/is_pod.h>
0469 # include <__type_traits/is_pointer.h>
0470 # include <__type_traits/is_polymorphic.h>
0471 # include <__type_traits/is_reference.h>
0472 # include <__type_traits/is_same.h>
0473 # include <__type_traits/is_scalar.h>
0474 # include <__type_traits/is_signed.h>
0475 # include <__type_traits/is_standard_layout.h>
0476 # include <__type_traits/is_trivial.h>
0477 # include <__type_traits/is_trivially_assignable.h>
0478 # include <__type_traits/is_trivially_constructible.h>
0479 # include <__type_traits/is_trivially_copyable.h>
0480 # include <__type_traits/is_trivially_destructible.h>
0481 # include <__type_traits/is_union.h>
0482 # include <__type_traits/is_unsigned.h>
0483 # include <__type_traits/is_void.h>
0484 # include <__type_traits/is_volatile.h>
0485 # include <__type_traits/make_signed.h>
0486 # include <__type_traits/make_unsigned.h>
0487 # include <__type_traits/rank.h>
0488 # include <__type_traits/remove_all_extents.h>
0489 # include <__type_traits/remove_const.h>
0490 # include <__type_traits/remove_cv.h>
0491 # include <__type_traits/remove_extent.h>
0492 # include <__type_traits/remove_pointer.h>
0493 # include <__type_traits/remove_reference.h>
0494 # include <__type_traits/remove_volatile.h>
0495 # include <__type_traits/result_of.h>
0496 # include <__type_traits/underlying_type.h>
0497
0498 # if _LIBCPP_STD_VER >= 14
0499 # include <__type_traits/is_final.h>
0500 # include <__type_traits/is_null_pointer.h>
0501 # endif
0502
0503 # if _LIBCPP_STD_VER >= 17
0504 # include <__type_traits/conjunction.h>
0505 # include <__type_traits/disjunction.h>
0506 # include <__type_traits/has_unique_object_representation.h>
0507 # include <__type_traits/invoke.h>
0508 # include <__type_traits/is_aggregate.h>
0509 # include <__type_traits/is_swappable.h>
0510 # include <__type_traits/negation.h>
0511 # include <__type_traits/void_t.h>
0512 # endif
0513
0514 # if _LIBCPP_STD_VER >= 20
0515 # include <__type_traits/common_reference.h>
0516 # include <__type_traits/is_bounded_array.h>
0517 # include <__type_traits/is_constant_evaluated.h>
0518 # include <__type_traits/is_nothrow_convertible.h>
0519 # include <__type_traits/is_unbounded_array.h>
0520 # include <__type_traits/type_identity.h>
0521 # include <__type_traits/unwrap_ref.h>
0522 # endif
0523
0524 # if _LIBCPP_STD_VER >= 23
0525 # include <__type_traits/is_implicit_lifetime.h>
0526 # endif
0527
0528 # include <version>
0529
0530 # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0531 # pragma GCC system_header
0532 # endif
0533 #endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
0534
0535 #endif // _LIBCPP_TYPE_TRAITS
