type_traits revision 227825
1227825Stheraven// -*- C++ -*- 2227825Stheraven//===------------------------ type_traits ---------------------------------===// 3227825Stheraven// 4227825Stheraven// The LLVM Compiler Infrastructure 5227825Stheraven// 6227825Stheraven// This file is dual licensed under the MIT and the University of Illinois Open 7227825Stheraven// Source Licenses. See LICENSE.TXT for details. 8227825Stheraven// 9227825Stheraven//===----------------------------------------------------------------------===// 10227825Stheraven 11227825Stheraven#ifndef _LIBCPP_TYPE_TRAITS 12227825Stheraven#define _LIBCPP_TYPE_TRAITS 13227825Stheraven 14227825Stheraven/* 15227825Stheraven type_traits synopsis 16227825Stheraven 17227825Stheravennamespace std 18227825Stheraven{ 19227825Stheraven 20227825Stheraven // helper class: 21227825Stheraven template <class T, T v> struct integral_constant; 22227825Stheraven typedef integral_constant<bool, true> true_type; 23227825Stheraven typedef integral_constant<bool, false> false_type; 24227825Stheraven 25227825Stheraven // helper traits 26227825Stheraven template <bool, class T = void> struct enable_if; 27227825Stheraven template <bool, class T, class F> struct conditional; 28227825Stheraven 29227825Stheraven // Primary classification traits: 30227825Stheraven template <class T> struct is_void; 31227825Stheraven template <class T> struct is_integral; 32227825Stheraven template <class T> struct is_floating_point; 33227825Stheraven template <class T> struct is_array; 34227825Stheraven template <class T> struct is_pointer; 35227825Stheraven template <class T> struct is_lvalue_reference; 36227825Stheraven template <class T> struct is_rvalue_reference; 37227825Stheraven template <class T> struct is_member_object_pointer; 38227825Stheraven template <class T> struct is_member_function_pointer; 39227825Stheraven template <class T> struct is_enum; 40227825Stheraven template <class T> struct is_union; 41227825Stheraven template <class T> struct is_class; 42227825Stheraven template <class T> struct is_function; 43227825Stheraven 44227825Stheraven // Secondary classification traits: 45227825Stheraven template <class T> struct is_reference; 46227825Stheraven template <class T> struct is_arithmetic; 47227825Stheraven template <class T> struct is_fundamental; 48227825Stheraven template <class T> struct is_member_pointer; 49227825Stheraven template <class T> struct is_scalar; 50227825Stheraven template <class T> struct is_object; 51227825Stheraven template <class T> struct is_compound; 52227825Stheraven 53227825Stheraven // Const-volatile properties and transformations: 54227825Stheraven template <class T> struct is_const; 55227825Stheraven template <class T> struct is_volatile; 56227825Stheraven template <class T> struct remove_const; 57227825Stheraven template <class T> struct remove_volatile; 58227825Stheraven template <class T> struct remove_cv; 59227825Stheraven template <class T> struct add_const; 60227825Stheraven template <class T> struct add_volatile; 61227825Stheraven template <class T> struct add_cv; 62227825Stheraven 63227825Stheraven // Reference transformations: 64227825Stheraven template <class T> struct remove_reference; 65227825Stheraven template <class T> struct add_lvalue_reference; 66227825Stheraven template <class T> struct add_rvalue_reference; 67227825Stheraven 68227825Stheraven // Pointer transformations: 69227825Stheraven template <class T> struct remove_pointer; 70227825Stheraven template <class T> struct add_pointer; 71227825Stheraven 72227825Stheraven // Integral properties: 73227825Stheraven template <class T> struct is_signed; 74227825Stheraven template <class T> struct is_unsigned; 75227825Stheraven template <class T> struct make_signed; 76227825Stheraven template <class T> struct make_unsigned; 77227825Stheraven 78227825Stheraven // Array properties and transformations: 79227825Stheraven template <class T> struct rank; 80227825Stheraven template <class T, unsigned I = 0> struct extent; 81227825Stheraven template <class T> struct remove_extent; 82227825Stheraven template <class T> struct remove_all_extents; 83227825Stheraven 84227825Stheraven // Member introspection: 85227825Stheraven template <class T> struct is_pod; 86227825Stheraven template <class T> struct is_trivial; 87227825Stheraven template <class T> struct is_trivially_copyable; 88227825Stheraven template <class T> struct is_standard_layout; 89227825Stheraven template <class T> struct is_literal_type; 90227825Stheraven template <class T> struct is_empty; 91227825Stheraven template <class T> struct is_polymorphic; 92227825Stheraven template <class T> struct is_abstract; 93227825Stheraven 94227825Stheraven template <class T, class... Args> struct is_constructible; 95227825Stheraven template <class T> struct is_default_constructible; 96227825Stheraven template <class T> struct is_copy_constructible; 97227825Stheraven template <class T> struct is_move_constructible; 98227825Stheraven template <class T, class U> struct is_assignable; 99227825Stheraven template <class T> struct is_copy_assignable; 100227825Stheraven template <class T> struct is_move_assignable; 101227825Stheraven template <class T> struct is_destructible; 102227825Stheraven 103227825Stheraven template <class T, class... Args> struct is_trivially_constructible; 104227825Stheraven template <class T> struct is_trivially_default_constructible; 105227825Stheraven template <class T> struct is_trivially_copy_constructible; 106227825Stheraven template <class T> struct is_trivially_move_constructible; 107227825Stheraven template <class T, class U> struct is_trivially_assignable; 108227825Stheraven template <class T> struct is_trivially_copy_assignable; 109227825Stheraven template <class T> struct is_trivially_move_assignable; 110227825Stheraven template <class T> struct is_trivially_destructible; 111227825Stheraven 112227825Stheraven template <class T, class... Args> struct is_nothrow_constructible; 113227825Stheraven template <class T> struct is_nothrow_default_constructible; 114227825Stheraven template <class T> struct is_nothrow_copy_constructible; 115227825Stheraven template <class T> struct is_nothrow_move_constructible; 116227825Stheraven template <class T, class U> struct is_nothrow_assignable; 117227825Stheraven template <class T> struct is_nothrow_copy_assignable; 118227825Stheraven template <class T> struct is_nothrow_move_assignable; 119227825Stheraven template <class T> struct is_nothrow_destructible; 120227825Stheraven 121227825Stheraven template <class T> struct has_virtual_destructor; 122227825Stheraven 123227825Stheraven // Relationships between types: 124227825Stheraven template <class T, class U> struct is_same; 125227825Stheraven template <class Base, class Derived> struct is_base_of; 126227825Stheraven template <class From, class To> struct is_convertible; 127227825Stheraven 128227825Stheraven // Alignment properties and transformations: 129227825Stheraven template <class T> struct alignment_of; 130227825Stheraven template <size_t Len, size_t Align = most_stringent_alignment_requirement> 131227825Stheraven struct aligned_storage; 132227825Stheraven 133227825Stheraven template <class T> struct decay; 134227825Stheraven template <class... T> struct common_type; 135227825Stheraven template <class T> struct underlying_type; 136227825Stheraven template <class> class result_of; // undefined 137227825Stheraven template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>; 138227825Stheraven 139227825Stheraven} // std 140227825Stheraven 141227825Stheraven*/ 142227825Stheraven#include <__config> 143227825Stheraven#include <cstddef> 144227825Stheraven 145227825Stheraven#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 146227825Stheraven#pragma GCC system_header 147227825Stheraven#endif 148227825Stheraven 149227825Stheraven_LIBCPP_BEGIN_NAMESPACE_STD 150227825Stheraven 151227825Stheraventemplate <bool _B, class _If, class _Then> 152227825Stheraven struct _LIBCPP_VISIBLE conditional {typedef _If type;}; 153227825Stheraventemplate <class _If, class _Then> 154227825Stheraven struct _LIBCPP_VISIBLE conditional<false, _If, _Then> {typedef _Then type;}; 155227825Stheraven 156227825Stheraventemplate <bool, class _Tp = void> struct _LIBCPP_VISIBLE enable_if {}; 157227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE enable_if<true, _Tp> {typedef _Tp type;}; 158227825Stheraven 159227825Stheravenstruct __two {char _[2];}; 160227825Stheraven 161227825Stheraven// helper class: 162227825Stheraven 163227825Stheraventemplate <class _Tp, _Tp __v> 164227825Stheravenstruct _LIBCPP_VISIBLE integral_constant 165227825Stheraven{ 166227825Stheraven static constexpr _Tp value = __v; 167227825Stheraven typedef _Tp value_type; 168227825Stheraven typedef integral_constant type; 169227825Stheraven _LIBCPP_INLINE_VISIBILITY 170227825Stheraven#ifndef _LIBCPP_HAS_NO_CONSTEXPR 171227825Stheraven constexpr 172227825Stheraven#endif 173227825Stheraven operator value_type() 174227825Stheraven#ifdef _LIBCPP_HAS_NO_CONSTEXPR 175227825Stheraven const 176227825Stheraven#endif 177227825Stheraven {return value;} 178227825Stheraven}; 179227825Stheraven 180227825Stheraventemplate <class _Tp, _Tp __v> 181227825Stheravenconstexpr _Tp integral_constant<_Tp, __v>::value; 182227825Stheraven 183227825Stheraventypedef integral_constant<bool, true> true_type; 184227825Stheraventypedef integral_constant<bool, false> false_type; 185227825Stheraven 186227825Stheraven// is_const 187227825Stheraven 188227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_const : public false_type {}; 189227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_const<_Tp const> : public true_type {}; 190227825Stheraven 191227825Stheraven// is_volatile 192227825Stheraven 193227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_volatile : public false_type {}; 194227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_volatile<_Tp volatile> : public true_type {}; 195227825Stheraven 196227825Stheraven// remove_const 197227825Stheraven 198227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_const {typedef _Tp type;}; 199227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_const<const _Tp> {typedef _Tp type;}; 200227825Stheraven 201227825Stheraven// remove_volatile 202227825Stheraven 203227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_volatile {typedef _Tp type;}; 204227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_volatile<volatile _Tp> {typedef _Tp type;}; 205227825Stheraven 206227825Stheraven// remove_cv 207227825Stheraven 208227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_cv 209227825Stheraven{typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;}; 210227825Stheraven 211227825Stheraven// is_void 212227825Stheraven 213227825Stheraventemplate <class _Tp> struct __is_void : public false_type {}; 214227825Stheraventemplate <> struct __is_void<void> : public true_type {}; 215227825Stheraven 216227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_void 217227825Stheraven : public __is_void<typename remove_cv<_Tp>::type> {}; 218227825Stheraven 219227825Stheraven// __is_nullptr_t 220227825Stheraven 221227825Stheraventemplate <class _Tp> struct ____is_nullptr_t : public false_type {}; 222227825Stheraventemplate <> struct ____is_nullptr_t<nullptr_t> : public true_type {}; 223227825Stheraven 224227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE __is_nullptr_t 225227825Stheraven : public ____is_nullptr_t<typename remove_cv<_Tp>::type> {}; 226227825Stheraven 227227825Stheraven// is_integral 228227825Stheraven 229227825Stheraventemplate <class _Tp> struct __is_integral : public false_type {}; 230227825Stheraventemplate <> struct __is_integral<bool> : public true_type {}; 231227825Stheraventemplate <> struct __is_integral<char> : public true_type {}; 232227825Stheraventemplate <> struct __is_integral<signed char> : public true_type {}; 233227825Stheraventemplate <> struct __is_integral<unsigned char> : public true_type {}; 234227825Stheraventemplate <> struct __is_integral<wchar_t> : public true_type {}; 235227825Stheraven#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 236227825Stheraventemplate <> struct __is_integral<char16_t> : public true_type {}; 237227825Stheraventemplate <> struct __is_integral<char32_t> : public true_type {}; 238227825Stheraven#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 239227825Stheraventemplate <> struct __is_integral<short> : public true_type {}; 240227825Stheraventemplate <> struct __is_integral<unsigned short> : public true_type {}; 241227825Stheraventemplate <> struct __is_integral<int> : public true_type {}; 242227825Stheraventemplate <> struct __is_integral<unsigned int> : public true_type {}; 243227825Stheraventemplate <> struct __is_integral<long> : public true_type {}; 244227825Stheraventemplate <> struct __is_integral<unsigned long> : public true_type {}; 245227825Stheraventemplate <> struct __is_integral<long long> : public true_type {}; 246227825Stheraventemplate <> struct __is_integral<unsigned long long> : public true_type {}; 247227825Stheraven 248227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_integral 249227825Stheraven : public __is_integral<typename remove_cv<_Tp>::type> {}; 250227825Stheraven 251227825Stheraven// is_floating_point 252227825Stheraven 253227825Stheraventemplate <class _Tp> struct __is_floating_point : public false_type {}; 254227825Stheraventemplate <> struct __is_floating_point<float> : public true_type {}; 255227825Stheraventemplate <> struct __is_floating_point<double> : public true_type {}; 256227825Stheraventemplate <> struct __is_floating_point<long double> : public true_type {}; 257227825Stheraven 258227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_floating_point 259227825Stheraven : public __is_floating_point<typename remove_cv<_Tp>::type> {}; 260227825Stheraven 261227825Stheraven// is_array 262227825Stheraven 263227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_array 264227825Stheraven : public false_type {}; 265227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_array<_Tp[]> 266227825Stheraven : public true_type {}; 267227825Stheraventemplate <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE is_array<_Tp[_Np]> 268227825Stheraven : public true_type {}; 269227825Stheraven 270227825Stheraven// is_pointer 271227825Stheraven 272227825Stheraventemplate <class _Tp> struct __is_pointer : public false_type {}; 273227825Stheraventemplate <class _Tp> struct __is_pointer<_Tp*> : public true_type {}; 274227825Stheraven 275227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_pointer 276227825Stheraven : public __is_pointer<typename remove_cv<_Tp>::type> {}; 277227825Stheraven 278227825Stheraven// is_reference 279227825Stheraven 280227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_lvalue_reference : public false_type {}; 281227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_lvalue_reference<_Tp&> : public true_type {}; 282227825Stheraven 283227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_rvalue_reference : public false_type {}; 284227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 285227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_rvalue_reference<_Tp&&> : public true_type {}; 286227825Stheraven#endif 287227825Stheraven 288227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_reference : public false_type {}; 289227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_reference<_Tp&> : public true_type {}; 290227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 291227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_reference<_Tp&&> : public true_type {}; 292227825Stheraven#endif 293227825Stheraven 294227825Stheraven#if defined(__clang__) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 295227825Stheraven#define _LIBCPP_HAS_TYPE_TRAITS 296227825Stheraven#endif 297227825Stheraven 298227825Stheraven// is_union 299227825Stheraven 300227825Stheraven#if __has_feature(is_union) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 301227825Stheraven 302227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_union 303227825Stheraven : public integral_constant<bool, __is_union(_Tp)> {}; 304227825Stheraven 305227825Stheraven#else 306227825Stheraven 307227825Stheraventemplate <class _Tp> struct __libcpp_union : public false_type {}; 308227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_union 309227825Stheraven : public __libcpp_union<typename remove_cv<_Tp>::type> {}; 310227825Stheraven 311227825Stheraven#endif 312227825Stheraven 313227825Stheraven// is_class 314227825Stheraven 315227825Stheraven#if __has_feature(is_class) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 316227825Stheraven 317227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_class 318227825Stheraven : public integral_constant<bool, __is_class(_Tp)> {}; 319227825Stheraven 320227825Stheraven#else 321227825Stheraven 322227825Stheravennamespace __is_class_imp 323227825Stheraven{ 324227825Stheraventemplate <class _Tp> char __test(int _Tp::*); 325227825Stheraventemplate <class _Tp> __two __test(...); 326227825Stheraven} 327227825Stheraven 328227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_class 329227825Stheraven : public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {}; 330227825Stheraven 331227825Stheraven#endif 332227825Stheraven 333227825Stheraven// is_same 334227825Stheraven 335227825Stheraventemplate <class _Tp, class _Up> struct _LIBCPP_VISIBLE is_same : public false_type {}; 336227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_same<_Tp, _Tp> : public true_type {}; 337227825Stheraven 338227825Stheraven// is_function 339227825Stheraven 340227825Stheravennamespace __is_function_imp 341227825Stheraven{ 342227825Stheraventemplate <class _Tp> char __test(_Tp*); 343227825Stheraventemplate <class _Tp> __two __test(...); 344227825Stheraventemplate <class _Tp> _Tp& __source(); 345227825Stheraven} 346227825Stheraven 347227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value || 348227825Stheraven is_union<_Tp>::value || 349227825Stheraven is_void<_Tp>::value || 350227825Stheraven is_reference<_Tp>::value || 351227825Stheraven is_same<_Tp, nullptr_t>::value > 352227825Stheravenstruct __is_function 353227825Stheraven : public integral_constant<bool, sizeof(__is_function_imp::__test<_Tp>(__is_function_imp::__source<_Tp>())) == 1> 354227825Stheraven {}; 355227825Stheraventemplate <class _Tp> struct __is_function<_Tp, true> : public false_type {}; 356227825Stheraven 357227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_function 358227825Stheraven : public __is_function<_Tp> {}; 359227825Stheraven 360227825Stheraven// is_member_function_pointer 361227825Stheraven 362227825Stheraventemplate <class _Tp> struct __is_member_function_pointer : public false_type {}; 363227825Stheraventemplate <class _Tp, class _Up> struct __is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {}; 364227825Stheraven 365227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_member_function_pointer 366227825Stheraven : public __is_member_function_pointer<typename remove_cv<_Tp>::type> {}; 367227825Stheraven 368227825Stheraven// is_member_pointer 369227825Stheraven 370227825Stheraventemplate <class _Tp> struct __is_member_pointer : public false_type {}; 371227825Stheraventemplate <class _Tp, class _Up> struct __is_member_pointer<_Tp _Up::*> : public true_type {}; 372227825Stheraven 373227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_member_pointer 374227825Stheraven : public __is_member_pointer<typename remove_cv<_Tp>::type> {}; 375227825Stheraven 376227825Stheraven// is_member_object_pointer 377227825Stheraven 378227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_member_object_pointer 379227825Stheraven : public integral_constant<bool, is_member_pointer<_Tp>::value && 380227825Stheraven !is_member_function_pointer<_Tp>::value> {}; 381227825Stheraven 382227825Stheraven// is_enum 383227825Stheraven 384227825Stheraven#if __has_feature(is_enum) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 385227825Stheraven 386227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_enum 387227825Stheraven : public integral_constant<bool, __is_enum(_Tp)> {}; 388227825Stheraven 389227825Stheraven#else 390227825Stheraven 391227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_enum 392227825Stheraven : public integral_constant<bool, !is_void<_Tp>::value && 393227825Stheraven !is_integral<_Tp>::value && 394227825Stheraven !is_floating_point<_Tp>::value && 395227825Stheraven !is_array<_Tp>::value && 396227825Stheraven !is_pointer<_Tp>::value && 397227825Stheraven !is_reference<_Tp>::value && 398227825Stheraven !is_member_pointer<_Tp>::value && 399227825Stheraven !is_union<_Tp>::value && 400227825Stheraven !is_class<_Tp>::value && 401227825Stheraven !is_function<_Tp>::value > {}; 402227825Stheraven 403227825Stheraven#endif 404227825Stheraven 405227825Stheraven// is_arithmetic 406227825Stheraven 407227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_arithmetic 408227825Stheraven : public integral_constant<bool, is_integral<_Tp>::value || 409227825Stheraven is_floating_point<_Tp>::value> {}; 410227825Stheraven 411227825Stheraven// is_fundamental 412227825Stheraven 413227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_fundamental 414227825Stheraven : public integral_constant<bool, is_void<_Tp>::value || 415227825Stheraven __is_nullptr_t<_Tp>::value || 416227825Stheraven is_arithmetic<_Tp>::value> {}; 417227825Stheraven 418227825Stheraven// is_scalar 419227825Stheraven 420227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_scalar 421227825Stheraven : public integral_constant<bool, is_arithmetic<_Tp>::value || 422227825Stheraven is_member_pointer<_Tp>::value || 423227825Stheraven is_pointer<_Tp>::value || 424227825Stheraven __is_nullptr_t<_Tp>::value || 425227825Stheraven is_enum<_Tp>::value > {}; 426227825Stheraven 427227825Stheraventemplate <> struct _LIBCPP_VISIBLE is_scalar<nullptr_t> : public true_type {}; 428227825Stheraven 429227825Stheraven// is_object 430227825Stheraven 431227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_object 432227825Stheraven : public integral_constant<bool, is_scalar<_Tp>::value || 433227825Stheraven is_array<_Tp>::value || 434227825Stheraven is_union<_Tp>::value || 435227825Stheraven is_class<_Tp>::value > {}; 436227825Stheraven 437227825Stheraven// is_compound 438227825Stheraven 439227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_compound 440227825Stheraven : public integral_constant<bool, !is_fundamental<_Tp>::value> {}; 441227825Stheraven 442227825Stheraven// add_const 443227825Stheraven 444227825Stheraventemplate <class _Tp, bool = is_reference<_Tp>::value || 445227825Stheraven is_function<_Tp>::value || 446227825Stheraven is_const<_Tp>::value > 447227825Stheravenstruct __add_const {typedef _Tp type;}; 448227825Stheraven 449227825Stheraventemplate <class _Tp> 450227825Stheravenstruct __add_const<_Tp, false> {typedef const _Tp type;}; 451227825Stheraven 452227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_const 453227825Stheraven {typedef typename __add_const<_Tp>::type type;}; 454227825Stheraven 455227825Stheraven// add_volatile 456227825Stheraven 457227825Stheraventemplate <class _Tp, bool = is_reference<_Tp>::value || 458227825Stheraven is_function<_Tp>::value || 459227825Stheraven is_volatile<_Tp>::value > 460227825Stheravenstruct __add_volatile {typedef _Tp type;}; 461227825Stheraven 462227825Stheraventemplate <class _Tp> 463227825Stheravenstruct __add_volatile<_Tp, false> {typedef volatile _Tp type;}; 464227825Stheraven 465227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_volatile 466227825Stheraven {typedef typename __add_volatile<_Tp>::type type;}; 467227825Stheraven 468227825Stheraven// add_cv 469227825Stheraven 470227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_cv 471227825Stheraven {typedef typename add_const<typename add_volatile<_Tp>::type>::type type;}; 472227825Stheraven 473227825Stheraven// remove_reference 474227825Stheraven 475227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_reference {typedef _Tp type;}; 476227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_reference<_Tp&> {typedef _Tp type;}; 477227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 478227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_reference<_Tp&&> {typedef _Tp type;}; 479227825Stheraven#endif 480227825Stheraven 481227825Stheraven// add_lvalue_reference 482227825Stheraven 483227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_lvalue_reference {typedef _Tp& type;}; 484227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_lvalue_reference<_Tp&> {typedef _Tp& type;}; // for older compiler 485227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_lvalue_reference<void> {typedef void type;}; 486227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_lvalue_reference<const void> {typedef const void type;}; 487227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_lvalue_reference<volatile void> {typedef volatile void type;}; 488227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_lvalue_reference<const volatile void> {typedef const volatile void type;}; 489227825Stheraven 490227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 491227825Stheraven 492227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_rvalue_reference {typedef _Tp&& type;}; 493227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_rvalue_reference<void> {typedef void type;}; 494227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_rvalue_reference<const void> {typedef const void type;}; 495227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_rvalue_reference<volatile void> {typedef volatile void type;}; 496227825Stheraventemplate <> struct _LIBCPP_VISIBLE add_rvalue_reference<const volatile void> {typedef const volatile void type;}; 497227825Stheraven 498227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 499227825Stheraven 500227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 501227825Stheraven 502227825Stheraventemplate <class _Tp> 503227825Stheraventypename add_rvalue_reference<_Tp>::type 504227825Stheravendeclval() _NOEXCEPT; 505227825Stheraven 506227825Stheraven#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES 507227825Stheraven 508227825Stheraventemplate <class _Tp> 509227825Stheraventypename add_lvalue_reference<_Tp>::type 510227825Stheravendeclval(); 511227825Stheraven 512227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 513227825Stheraven 514227825Stheravenstruct __any 515227825Stheraven{ 516227825Stheraven __any(...); 517227825Stheraven}; 518227825Stheraven 519227825Stheraven// remove_pointer 520227825Stheraven 521227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_pointer {typedef _Tp type;}; 522227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp*> {typedef _Tp type;}; 523227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp* const> {typedef _Tp type;}; 524227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp* volatile> {typedef _Tp type;}; 525227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp* const volatile> {typedef _Tp type;}; 526227825Stheraven 527227825Stheraven// add_pointer 528227825Stheraven 529227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE add_pointer 530227825Stheraven {typedef typename remove_reference<_Tp>::type* type;}; 531227825Stheraven 532227825Stheraven// is_signed 533227825Stheraven 534227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value> 535227825Stheravenstruct ___is_signed : public integral_constant<bool, _Tp(-1) < _Tp(0)> {}; 536227825Stheraven 537227825Stheraventemplate <class _Tp> 538227825Stheravenstruct ___is_signed<_Tp, false> : public true_type {}; // floating point 539227825Stheraven 540227825Stheraventemplate <class _Tp, bool = is_arithmetic<_Tp>::value> 541227825Stheravenstruct __is_signed : public ___is_signed<_Tp> {}; 542227825Stheraven 543227825Stheraventemplate <class _Tp> struct __is_signed<_Tp, false> : public false_type {}; 544227825Stheraven 545227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_signed : public __is_signed<_Tp> {}; 546227825Stheraven 547227825Stheraven// is_unsigned 548227825Stheraven 549227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value> 550227825Stheravenstruct ___is_unsigned : public integral_constant<bool, _Tp(0) < _Tp(-1)> {}; 551227825Stheraven 552227825Stheraventemplate <class _Tp> 553227825Stheravenstruct ___is_unsigned<_Tp, false> : public false_type {}; // floating point 554227825Stheraven 555227825Stheraventemplate <class _Tp, bool = is_arithmetic<_Tp>::value> 556227825Stheravenstruct __is_unsigned : public ___is_unsigned<_Tp> {}; 557227825Stheraven 558227825Stheraventemplate <class _Tp> struct __is_unsigned<_Tp, false> : public false_type {}; 559227825Stheraven 560227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_unsigned : public __is_unsigned<_Tp> {}; 561227825Stheraven 562227825Stheraven// rank 563227825Stheraven 564227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE rank 565227825Stheraven : public integral_constant<size_t, 0> {}; 566227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE rank<_Tp[]> 567227825Stheraven : public integral_constant<size_t, rank<_Tp>::value + 1> {}; 568227825Stheraventemplate <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE rank<_Tp[_Np]> 569227825Stheraven : public integral_constant<size_t, rank<_Tp>::value + 1> {}; 570227825Stheraven 571227825Stheraven// extent 572227825Stheraven 573227825Stheraventemplate <class _Tp, unsigned _Ip = 0> struct _LIBCPP_VISIBLE extent 574227825Stheraven : public integral_constant<size_t, 0> {}; 575227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE extent<_Tp[], 0> 576227825Stheraven : public integral_constant<size_t, 0> {}; 577227825Stheraventemplate <class _Tp, unsigned _Ip> struct _LIBCPP_VISIBLE extent<_Tp[], _Ip> 578227825Stheraven : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; 579227825Stheraventemplate <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE extent<_Tp[_Np], 0> 580227825Stheraven : public integral_constant<size_t, _Np> {}; 581227825Stheraventemplate <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_VISIBLE extent<_Tp[_Np], _Ip> 582227825Stheraven : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; 583227825Stheraven 584227825Stheraven// remove_extent 585227825Stheraven 586227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_extent 587227825Stheraven {typedef _Tp type;}; 588227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_extent<_Tp[]> 589227825Stheraven {typedef _Tp type;}; 590227825Stheraventemplate <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE remove_extent<_Tp[_Np]> 591227825Stheraven {typedef _Tp type;}; 592227825Stheraven 593227825Stheraven// remove_all_extents 594227825Stheraven 595227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_all_extents 596227825Stheraven {typedef _Tp type;}; 597227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE remove_all_extents<_Tp[]> 598227825Stheraven {typedef typename remove_all_extents<_Tp>::type type;}; 599227825Stheraventemplate <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE remove_all_extents<_Tp[_Np]> 600227825Stheraven {typedef typename remove_all_extents<_Tp>::type type;}; 601227825Stheraven 602227825Stheraven// is_abstract 603227825Stheraven 604227825Stheravennamespace __is_abstract_imp 605227825Stheraven{ 606227825Stheraventemplate <class _Tp> char __test(_Tp (*)[1]); 607227825Stheraventemplate <class _Tp> __two __test(...); 608227825Stheraven} 609227825Stheraven 610227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value> 611227825Stheravenstruct __libcpp_abstract : public integral_constant<bool, sizeof(__is_abstract_imp::__test<_Tp>(0)) != 1> {}; 612227825Stheraven 613227825Stheraventemplate <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {}; 614227825Stheraven 615227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_abstract : public __libcpp_abstract<_Tp> {}; 616227825Stheraven 617227825Stheraven// is_convertible 618227825Stheraven 619227825Stheraven#if __has_feature(is_convertible_to) 620227825Stheraven 621227825Stheraventemplate <class _T1, class _T2> struct _LIBCPP_VISIBLE is_convertible 622227825Stheraven : public integral_constant<bool, __is_convertible_to(_T1, _T2)> {}; 623227825Stheraven 624227825Stheraven#else // __has_feature(is_convertible_to) 625227825Stheraven 626227825Stheravennamespace __is_convertible_imp 627227825Stheraven{ 628227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 629227825Stheraventemplate <class _Tp> char __test(const volatile typename remove_reference<_Tp>::type&&); 630227825Stheraven#else 631227825Stheraventemplate <class _Tp> char __test(_Tp); 632227825Stheraven#endif 633227825Stheraventemplate <class _Tp> __two __test(...); 634227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 635227825Stheraventemplate <class _Tp> _Tp&& __source(); 636227825Stheraven#else 637227825Stheraventemplate <class _Tp> typename remove_reference<_Tp>::type& __source(); 638227825Stheraven#endif 639227825Stheraven 640227825Stheraventemplate <class _Tp, bool _IsArray = is_array<_Tp>::value, 641227825Stheraven bool _IsFunction = is_function<_Tp>::value, 642227825Stheraven bool _IsVoid = is_void<_Tp>::value> 643227825Stheraven struct __is_array_function_or_void {enum {value = 0};}; 644227825Stheraventemplate <class _Tp> struct __is_array_function_or_void<_Tp, true, false, false> {enum {value = 1};}; 645227825Stheraventemplate <class _Tp> struct __is_array_function_or_void<_Tp, false, true, false> {enum {value = 2};}; 646227825Stheraventemplate <class _Tp> struct __is_array_function_or_void<_Tp, false, false, true> {enum {value = 3};}; 647227825Stheraven} 648227825Stheraven 649227825Stheraventemplate <class _Tp, 650227825Stheraven unsigned = __is_convertible_imp::__is_array_function_or_void<typename remove_reference<_Tp>::type>::value> 651227825Stheravenstruct __is_convertible_check 652227825Stheraven{ 653227825Stheraven static const size_t __v = 0; 654227825Stheraven}; 655227825Stheraven 656227825Stheraventemplate <class _Tp> 657227825Stheravenstruct __is_convertible_check<_Tp, 0> 658227825Stheraven{ 659227825Stheraven static const size_t __v = sizeof(_Tp); 660227825Stheraven}; 661227825Stheraven 662227825Stheraventemplate <class _T1, class _T2, 663227825Stheraven unsigned _T1_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T1>::value, 664227825Stheraven unsigned _T2_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T2>::value> 665227825Stheravenstruct __is_convertible 666227825Stheraven : public integral_constant<bool, 667227825Stheraven sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1 668227825Stheraven > 669227825Stheraven{}; 670227825Stheraven 671227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 0> : false_type {}; 672227825Stheraven 673227825Stheraventemplate <class _T1> struct __is_convertible<_T1, const _T1&, 1, 0> : true_type {}; 674227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 675227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1&&, 1, 0> : true_type {}; 676227825Stheraventemplate <class _T1> struct __is_convertible<_T1, const _T1&&, 1, 0> : true_type {}; 677227825Stheraventemplate <class _T1> struct __is_convertible<_T1, volatile _T1&&, 1, 0> : true_type {}; 678227825Stheraventemplate <class _T1> struct __is_convertible<_T1, const volatile _T1&&, 1, 0> : true_type {}; 679227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 680227825Stheraven 681227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2*, 1, 0> 682227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*>::value> {}; 683227825Stheraven 684227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2* const, 1, 0> 685227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const>::value> {}; 686227825Stheraven 687227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2* volatile, 1, 0> 688227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*volatile>::value> {}; 689227825Stheraven 690227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2* const volatile, 1, 0> 691227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const volatile>::value> {}; 692227825Stheraven 693227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 0> : public false_type {}; 694227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 695227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1&&, 2, 0> : public true_type {}; 696227825Stheraven#endif 697227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*, 2, 0> : public true_type {}; 698227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*const, 2, 0> : public true_type {}; 699227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*volatile, 2, 0> : public true_type {}; 700227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*const volatile, 2, 0> : public true_type {}; 701227825Stheraven 702227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 0> : public false_type {}; 703227825Stheraven 704227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 1> : public false_type {}; 705227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 1> : public false_type {}; 706227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 1> : public false_type {}; 707227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 1> : public false_type {}; 708227825Stheraven 709227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 2> : public false_type {}; 710227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 2> : public false_type {}; 711227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 2> : public false_type {}; 712227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 2> : public false_type {}; 713227825Stheraven 714227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 3> : public false_type {}; 715227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public false_type {}; 716227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {}; 717227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {}; 718227825Stheraven 719227825Stheraventemplate <class _T1, class _T2> struct _LIBCPP_VISIBLE is_convertible 720227825Stheraven : public __is_convertible<_T1, _T2> 721227825Stheraven{ 722227825Stheraven static const size_t __complete_check1 = __is_convertible_check<_T1>::__v; 723227825Stheraven static const size_t __complete_check2 = __is_convertible_check<_T2>::__v; 724227825Stheraven}; 725227825Stheraven 726227825Stheraven#endif // __has_feature(is_convertible_to) 727227825Stheraven 728227825Stheraven// is_base_of 729227825Stheraven 730227825Stheraven#ifdef _LIBCP_HAS_IS_BASE_OF 731227825Stheraven 732227825Stheraventemplate <class _Bp, class _Dp> 733227825Stheravenstruct _LIBCPP_VISIBLE is_base_of 734227825Stheraven : public integral_constant<bool, __is_base_of(_Bp, _Dp)> {}; 735227825Stheraven 736227825Stheraven#else // __has_feature(is_base_of) 737227825Stheraven 738227825Stheraven#error is_base_of not implemented. 739227825Stheraven 740227825Stheraven#endif // __has_feature(is_base_of) 741227825Stheraven 742227825Stheraven// is_empty 743227825Stheraven 744227825Stheraventemplate <class _Tp> 745227825Stheravenstruct __is_empty1 746227825Stheraven : public _Tp 747227825Stheraven{ 748227825Stheraven double _; 749227825Stheraven}; 750227825Stheraven 751227825Stheravenstruct __is_empty2 752227825Stheraven{ 753227825Stheraven double _; 754227825Stheraven}; 755227825Stheraven 756227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value> 757227825Stheravenstruct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>) == sizeof(__is_empty2)> {}; 758227825Stheraven 759227825Stheraventemplate <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {}; 760227825Stheraven 761227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_empty : public __libcpp_empty<_Tp> {}; 762227825Stheraven 763227825Stheraven// is_polymorphic 764227825Stheraven 765227825Stheraventemplate <class _Tp> struct __is_polymorphic1 : public _Tp {}; 766227825Stheraventemplate <class _Tp> struct __is_polymorphic2 : public _Tp {virtual ~__is_polymorphic2() throw();}; 767227825Stheraven 768227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value> 769227825Stheravenstruct __libcpp_polymorphic 770227825Stheraven : public integral_constant<bool, sizeof(__is_polymorphic1<_Tp>) == sizeof(__is_polymorphic2<_Tp>)> {}; 771227825Stheraven 772227825Stheraventemplate <class _Tp> struct __libcpp_polymorphic<_Tp, false> : public false_type {}; 773227825Stheraven 774227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_polymorphic 775227825Stheraven : public __libcpp_polymorphic<_Tp> {}; 776227825Stheraven 777227825Stheraven// has_virtual_destructor 778227825Stheraven 779227825Stheraven#if __has_feature(has_virtual_destructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 780227825Stheraven 781227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE has_virtual_destructor 782227825Stheraven : public integral_constant<bool, __has_virtual_destructor(_Tp)> {}; 783227825Stheraven 784227825Stheraven#else // _LIBCPP_HAS_TYPE_TRAITS 785227825Stheraven 786227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE has_virtual_destructor 787227825Stheraven : public false_type {}; 788227825Stheraven 789227825Stheraven#endif // _LIBCPP_HAS_TYPE_TRAITS 790227825Stheraven 791227825Stheraven// alignment_of 792227825Stheraven 793227825Stheraventemplate <class _Tp> struct __alignment_of {_Tp _;}; 794227825Stheraven 795227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE alignment_of 796227825Stheraven : public integral_constant<size_t, __alignof__(__alignment_of<typename remove_all_extents<_Tp>::type>)> {}; 797227825Stheraven 798227825Stheraven// aligned_storage 799227825Stheraven 800227825Stheraventemplate <class _Hp, class _Tp> 801227825Stheravenstruct __type_list 802227825Stheraven{ 803227825Stheraven typedef _Hp _Head; 804227825Stheraven typedef _Tp _Tail; 805227825Stheraven}; 806227825Stheraven 807227825Stheravenstruct __nat 808227825Stheraven{ 809227825Stheraven#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS 810227825Stheraven __nat() = delete; 811227825Stheraven __nat(const __nat&) = delete; 812227825Stheraven __nat& operator=(const __nat&) = delete; 813227825Stheraven ~__nat() = delete; 814227825Stheraven#endif 815227825Stheraven}; 816227825Stheraven 817227825Stheraventemplate <class _Tp> 818227825Stheravenstruct __align_type 819227825Stheraven{ 820227825Stheraven static const size_t value = alignment_of<_Tp>::value; 821227825Stheraven typedef _Tp type; 822227825Stheraven}; 823227825Stheraven 824227825Stheravenstruct __struct_double {long double _;}; 825227825Stheravenstruct __struct_double4 {double _[4];}; 826227825Stheraven 827227825Stheraventypedef 828227825Stheraven __type_list<__align_type<unsigned char>, 829227825Stheraven __type_list<__align_type<unsigned short>, 830227825Stheraven __type_list<__align_type<unsigned int>, 831227825Stheraven __type_list<__align_type<unsigned long>, 832227825Stheraven __type_list<__align_type<unsigned long long>, 833227825Stheraven __type_list<__align_type<double>, 834227825Stheraven __type_list<__align_type<long double>, 835227825Stheraven __type_list<__align_type<__struct_double>, 836227825Stheraven __type_list<__align_type<__struct_double4>, 837227825Stheraven __type_list<__align_type<int*>, 838227825Stheraven __nat 839227825Stheraven > > > > > > > > > > __all_types; 840227825Stheraven 841227825Stheraventemplate <class _TL, size_t _Align> struct __find_pod; 842227825Stheraven 843227825Stheraventemplate <class _Hp, size_t _Align> 844227825Stheravenstruct __find_pod<__type_list<_Hp, __nat>, _Align> 845227825Stheraven{ 846227825Stheraven typedef typename conditional< 847227825Stheraven _Align == _Hp::value, 848227825Stheraven typename _Hp::type, 849227825Stheraven void 850227825Stheraven >::type type; 851227825Stheraven}; 852227825Stheraven 853227825Stheraventemplate <class _Hp, class _Tp, size_t _Align> 854227825Stheravenstruct __find_pod<__type_list<_Hp, _Tp>, _Align> 855227825Stheraven{ 856227825Stheraven typedef typename conditional< 857227825Stheraven _Align == _Hp::value, 858227825Stheraven typename _Hp::type, 859227825Stheraven typename __find_pod<_Tp, _Align>::type 860227825Stheraven >::type type; 861227825Stheraven}; 862227825Stheraven 863227825Stheraventemplate <class _TL, size_t _Len> struct __find_max_align; 864227825Stheraven 865227825Stheraventemplate <class _Hp, size_t _Len> 866227825Stheravenstruct __find_max_align<__type_list<_Hp, __nat>, _Len> : public integral_constant<size_t, _Hp::value> {}; 867227825Stheraven 868227825Stheraventemplate <size_t _Len, size_t _A1, size_t _A2> 869227825Stheravenstruct __select_align 870227825Stheraven{ 871227825Stheravenprivate: 872227825Stheraven static const size_t __min = _A2 < _A1 ? _A2 : _A1; 873227825Stheraven static const size_t __max = _A1 < _A2 ? _A2 : _A1; 874227825Stheravenpublic: 875227825Stheraven static const size_t value = _Len < __max ? __min : __max; 876227825Stheraven}; 877227825Stheraven 878227825Stheraventemplate <class _Hp, class _Tp, size_t _Len> 879227825Stheravenstruct __find_max_align<__type_list<_Hp, _Tp>, _Len> 880227825Stheraven : public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {}; 881227825Stheraven 882227825Stheraventemplate <size_t _Len, const size_t _Align = __find_max_align<__all_types, _Len>::value> 883227825Stheravenstruct _LIBCPP_VISIBLE aligned_storage 884227825Stheraven{ 885227825Stheraven typedef typename __find_pod<__all_types, _Align>::type _Aligner; 886227825Stheraven static_assert(!is_void<_Aligner>::value, ""); 887227825Stheraven union type 888227825Stheraven { 889227825Stheraven _Aligner __align; 890227825Stheraven unsigned char __data[_Len]; 891227825Stheraven }; 892227825Stheraven}; 893227825Stheraven 894227825Stheraven#define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \ 895227825Stheraventemplate <size_t _Len>\ 896227825Stheravenstruct _LIBCPP_VISIBLE aligned_storage<_Len, n>\ 897227825Stheraven{\ 898227825Stheraven struct _ALIGNAS(n) type\ 899227825Stheraven {\ 900227825Stheraven unsigned char _[_Len];\ 901227825Stheraven };\ 902227825Stheraven} 903227825Stheraven 904227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1); 905227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2); 906227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4); 907227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x8); 908227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x10); 909227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x20); 910227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x40); 911227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x80); 912227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x100); 913227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x200); 914227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x400); 915227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x800); 916227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1000); 917227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2000); 918227825Stheraven// MSDN says that MSVC does not support alignment beyond 8192 (=0x2000) 919227825Stheraven#if !defined(_MSC_VER) 920227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000); 921227825Stheraven#endif // !_MSC_VER 922227825Stheraven 923227825Stheraven#undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION 924227825Stheraven 925227825Stheraven// __promote 926227825Stheraven 927227825Stheraventemplate <class _A1, class _A2 = void, class _A3 = void, 928227825Stheraven bool = (is_arithmetic<_A1>::value || is_void<_A1>::value) && 929227825Stheraven (is_arithmetic<_A2>::value || is_void<_A2>::value) && 930227825Stheraven (is_arithmetic<_A3>::value || is_void<_A3>::value)> 931227825Stheravenclass __promote {}; 932227825Stheraven 933227825Stheraventemplate <class _A1, class _A2, class _A3> 934227825Stheravenclass __promote<_A1, _A2, _A3, true> 935227825Stheraven{ 936227825Stheravenprivate: 937227825Stheraven typedef typename __promote<_A1>::type __type1; 938227825Stheraven typedef typename __promote<_A2>::type __type2; 939227825Stheraven typedef typename __promote<_A3>::type __type3; 940227825Stheravenpublic: 941227825Stheraven typedef decltype(__type1() + __type2() + __type3()) type; 942227825Stheraven}; 943227825Stheraven 944227825Stheraventemplate <class _A1, class _A2> 945227825Stheravenclass __promote<_A1, _A2, void, true> 946227825Stheraven{ 947227825Stheravenprivate: 948227825Stheraven typedef typename __promote<_A1>::type __type1; 949227825Stheraven typedef typename __promote<_A2>::type __type2; 950227825Stheravenpublic: 951227825Stheraven typedef decltype(__type1() + __type2()) type; 952227825Stheraven}; 953227825Stheraven 954227825Stheraventemplate <class _A1> 955227825Stheravenclass __promote<_A1, void, void, true> 956227825Stheraven{ 957227825Stheravenpublic: 958227825Stheraven typedef typename conditional<is_arithmetic<_A1>::value, 959227825Stheraven typename conditional<is_integral<_A1>::value, double, _A1>::type, 960227825Stheraven void 961227825Stheraven >::type type; 962227825Stheraven}; 963227825Stheraven 964227825Stheraven#ifdef _LIBCPP_STORE_AS_OPTIMIZATION 965227825Stheraven 966227825Stheraven// __transform 967227825Stheraven 968227825Stheraventemplate <class _Tp, size_t = sizeof(_Tp), bool = is_scalar<_Tp>::value> struct __transform {typedef _Tp type;}; 969227825Stheraventemplate <class _Tp> struct __transform<_Tp, 1, true> {typedef unsigned char type;}; 970227825Stheraventemplate <class _Tp> struct __transform<_Tp, 2, true> {typedef unsigned short type;}; 971227825Stheraventemplate <class _Tp> struct __transform<_Tp, 4, true> {typedef unsigned int type;}; 972227825Stheraventemplate <class _Tp> struct __transform<_Tp, 8, true> {typedef unsigned long long type;}; 973227825Stheraven 974227825Stheraven#endif // _LIBCPP_STORE_AS_OPTIMIZATION 975227825Stheraven 976227825Stheraven// make_signed / make_unsigned 977227825Stheraven 978227825Stheraventypedef 979227825Stheraven __type_list<signed char, 980227825Stheraven __type_list<signed short, 981227825Stheraven __type_list<signed int, 982227825Stheraven __type_list<signed long, 983227825Stheraven __type_list<signed long long, 984227825Stheraven __nat 985227825Stheraven > > > > > __signed_types; 986227825Stheraven 987227825Stheraventypedef 988227825Stheraven __type_list<unsigned char, 989227825Stheraven __type_list<unsigned short, 990227825Stheraven __type_list<unsigned int, 991227825Stheraven __type_list<unsigned long, 992227825Stheraven __type_list<unsigned long long, 993227825Stheraven __nat 994227825Stheraven > > > > > __unsigned_types; 995227825Stheraven 996227825Stheraventemplate <class _TypeList, size_t _Size, bool = _Size <= sizeof(typename _TypeList::_Head)> struct __find_first; 997227825Stheraven 998227825Stheraventemplate <class _Hp, class _Tp, size_t _Size> 999227825Stheravenstruct __find_first<__type_list<_Hp, _Tp>, _Size, true> 1000227825Stheraven{ 1001227825Stheraven typedef _Hp type; 1002227825Stheraven}; 1003227825Stheraven 1004227825Stheraventemplate <class _Hp, class _Tp, size_t _Size> 1005227825Stheravenstruct __find_first<__type_list<_Hp, _Tp>, _Size, false> 1006227825Stheraven{ 1007227825Stheraven typedef typename __find_first<_Tp, _Size>::type type; 1008227825Stheraven}; 1009227825Stheraven 1010227825Stheraventemplate <class _Tp, class _Up, bool = is_const<typename remove_reference<_Tp>::type>::value, 1011227825Stheraven bool = is_volatile<typename remove_reference<_Tp>::type>::value> 1012227825Stheravenstruct __apply_cv 1013227825Stheraven{ 1014227825Stheraven typedef _Up type; 1015227825Stheraven}; 1016227825Stheraven 1017227825Stheraventemplate <class _Tp, class _Up> 1018227825Stheravenstruct __apply_cv<_Tp, _Up, true, false> 1019227825Stheraven{ 1020227825Stheraven typedef const _Up type; 1021227825Stheraven}; 1022227825Stheraven 1023227825Stheraventemplate <class _Tp, class _Up> 1024227825Stheravenstruct __apply_cv<_Tp, _Up, false, true> 1025227825Stheraven{ 1026227825Stheraven typedef volatile _Up type; 1027227825Stheraven}; 1028227825Stheraven 1029227825Stheraventemplate <class _Tp, class _Up> 1030227825Stheravenstruct __apply_cv<_Tp, _Up, true, true> 1031227825Stheraven{ 1032227825Stheraven typedef const volatile _Up type; 1033227825Stheraven}; 1034227825Stheraven 1035227825Stheraventemplate <class _Tp, class _Up> 1036227825Stheravenstruct __apply_cv<_Tp&, _Up, false, false> 1037227825Stheraven{ 1038227825Stheraven typedef _Up& type; 1039227825Stheraven}; 1040227825Stheraven 1041227825Stheraventemplate <class _Tp, class _Up> 1042227825Stheravenstruct __apply_cv<_Tp&, _Up, true, false> 1043227825Stheraven{ 1044227825Stheraven typedef const _Up& type; 1045227825Stheraven}; 1046227825Stheraven 1047227825Stheraventemplate <class _Tp, class _Up> 1048227825Stheravenstruct __apply_cv<_Tp&, _Up, false, true> 1049227825Stheraven{ 1050227825Stheraven typedef volatile _Up& type; 1051227825Stheraven}; 1052227825Stheraven 1053227825Stheraventemplate <class _Tp, class _Up> 1054227825Stheravenstruct __apply_cv<_Tp&, _Up, true, true> 1055227825Stheraven{ 1056227825Stheraven typedef const volatile _Up& type; 1057227825Stheraven}; 1058227825Stheraven 1059227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> 1060227825Stheravenstruct __make_signed {}; 1061227825Stheraven 1062227825Stheraventemplate <class _Tp> 1063227825Stheravenstruct __make_signed<_Tp, true> 1064227825Stheraven{ 1065227825Stheraven typedef typename __find_first<__signed_types, sizeof(_Tp)>::type type; 1066227825Stheraven}; 1067227825Stheraven 1068227825Stheraventemplate <> struct __make_signed<bool, true> {}; 1069227825Stheraventemplate <> struct __make_signed< signed short, true> {typedef short type;}; 1070227825Stheraventemplate <> struct __make_signed<unsigned short, true> {typedef short type;}; 1071227825Stheraventemplate <> struct __make_signed< signed int, true> {typedef int type;}; 1072227825Stheraventemplate <> struct __make_signed<unsigned int, true> {typedef int type;}; 1073227825Stheraventemplate <> struct __make_signed< signed long, true> {typedef long type;}; 1074227825Stheraventemplate <> struct __make_signed<unsigned long, true> {typedef long type;}; 1075227825Stheraventemplate <> struct __make_signed< signed long long, true> {typedef long long type;}; 1076227825Stheraventemplate <> struct __make_signed<unsigned long long, true> {typedef long long type;}; 1077227825Stheraven 1078227825Stheraventemplate <class _Tp> 1079227825Stheravenstruct _LIBCPP_VISIBLE make_signed 1080227825Stheraven{ 1081227825Stheraven typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type; 1082227825Stheraven}; 1083227825Stheraven 1084227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> 1085227825Stheravenstruct __make_unsigned {}; 1086227825Stheraven 1087227825Stheraventemplate <class _Tp> 1088227825Stheravenstruct __make_unsigned<_Tp, true> 1089227825Stheraven{ 1090227825Stheraven typedef typename __find_first<__unsigned_types, sizeof(_Tp)>::type type; 1091227825Stheraven}; 1092227825Stheraven 1093227825Stheraventemplate <> struct __make_unsigned<bool, true> {}; 1094227825Stheraventemplate <> struct __make_unsigned< signed short, true> {typedef unsigned short type;}; 1095227825Stheraventemplate <> struct __make_unsigned<unsigned short, true> {typedef unsigned short type;}; 1096227825Stheraventemplate <> struct __make_unsigned< signed int, true> {typedef unsigned int type;}; 1097227825Stheraventemplate <> struct __make_unsigned<unsigned int, true> {typedef unsigned int type;}; 1098227825Stheraventemplate <> struct __make_unsigned< signed long, true> {typedef unsigned long type;}; 1099227825Stheraventemplate <> struct __make_unsigned<unsigned long, true> {typedef unsigned long type;}; 1100227825Stheraventemplate <> struct __make_unsigned< signed long long, true> {typedef unsigned long long type;}; 1101227825Stheraventemplate <> struct __make_unsigned<unsigned long long, true> {typedef unsigned long long type;}; 1102227825Stheraven 1103227825Stheraventemplate <class _Tp> 1104227825Stheravenstruct _LIBCPP_VISIBLE make_unsigned 1105227825Stheraven{ 1106227825Stheraven typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type; 1107227825Stheraven}; 1108227825Stheraven 1109227825Stheraven#ifdef _LIBCPP_HAS_NO_VARIADICS 1110227825Stheraven 1111227825Stheraventemplate <class _Tp, class _Up = void, class V = void> 1112227825Stheravenstruct _LIBCPP_VISIBLE common_type 1113227825Stheraven{ 1114227825Stheravenpublic: 1115227825Stheraven typedef typename common_type<typename common_type<_Tp, _Up>::type, V>::type type; 1116227825Stheraven}; 1117227825Stheraven 1118227825Stheraventemplate <class _Tp> 1119227825Stheravenstruct _LIBCPP_VISIBLE common_type<_Tp, void, void> 1120227825Stheraven{ 1121227825Stheravenpublic: 1122227825Stheraven typedef _Tp type; 1123227825Stheraven}; 1124227825Stheraven 1125227825Stheraventemplate <class _Tp, class _Up> 1126227825Stheravenstruct _LIBCPP_VISIBLE common_type<_Tp, _Up, void> 1127227825Stheraven{ 1128227825Stheravenprivate: 1129227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1130227825Stheraven static _Tp&& __t(); 1131227825Stheraven static _Up&& __u(); 1132227825Stheraven#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1133227825Stheraven static _Tp __t(); 1134227825Stheraven static _Up __u(); 1135227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1136227825Stheravenpublic: 1137227825Stheraven typedef decltype(true ? __t() : __u()) type; 1138227825Stheraven}; 1139227825Stheraven 1140227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1141227825Stheraven 1142227825Stheraventemplate <class ..._Tp> struct common_type; 1143227825Stheraven 1144227825Stheraventemplate <class _Tp> 1145227825Stheravenstruct _LIBCPP_VISIBLE common_type<_Tp> 1146227825Stheraven{ 1147227825Stheraven typedef _Tp type; 1148227825Stheraven}; 1149227825Stheraven 1150227825Stheraventemplate <class _Tp, class _Up> 1151227825Stheravenstruct _LIBCPP_VISIBLE common_type<_Tp, _Up> 1152227825Stheraven{ 1153227825Stheravenprivate: 1154227825Stheraven static _Tp&& __t(); 1155227825Stheraven static _Up&& __u(); 1156227825Stheraven static bool __f(); 1157227825Stheravenpublic: 1158227825Stheraven typedef decltype(__f() ? __t() : __u()) type; 1159227825Stheraven}; 1160227825Stheraven 1161227825Stheraventemplate <class _Tp, class _Up, class ..._Vp> 1162227825Stheravenstruct _LIBCPP_VISIBLE common_type<_Tp, _Up, _Vp...> 1163227825Stheraven{ 1164227825Stheraven typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp...>::type type; 1165227825Stheraven}; 1166227825Stheraven 1167227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 1168227825Stheraven 1169227825Stheraven// is_assignable 1170227825Stheraven 1171227825Stheraventemplate <class _Tp, class _Arg> 1172227825Stheravendecltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>(), true_type())) 1173227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1174227825Stheraven__is_assignable_test(_Tp&&, _Arg&&); 1175227825Stheraven#else 1176227825Stheraven__is_assignable_test(_Tp, _Arg&); 1177227825Stheraven#endif 1178227825Stheraven 1179227825Stheraventemplate <class _Arg> 1180227825Stheravenfalse_type 1181227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1182227825Stheraven__is_assignable_test(__any, _Arg&&); 1183227825Stheraven#else 1184227825Stheraven__is_assignable_test(__any, _Arg&); 1185227825Stheraven#endif 1186227825Stheraven 1187227825Stheraventemplate <class _Tp, class _Arg, bool = is_void<_Tp>::value || is_void<_Arg>::value> 1188227825Stheravenstruct __is_assignable_imp 1189227825Stheraven : public common_type 1190227825Stheraven < 1191227825Stheraven decltype(__is_assignable_test(declval<_Tp>(), declval<_Arg>())) 1192227825Stheraven >::type {}; 1193227825Stheraven 1194227825Stheraventemplate <class _Tp, class _Arg> 1195227825Stheravenstruct __is_assignable_imp<_Tp, _Arg, true> 1196227825Stheraven : public false_type 1197227825Stheraven{ 1198227825Stheraven}; 1199227825Stheraven 1200227825Stheraventemplate <class _Tp, class _Arg> 1201227825Stheravenstruct is_assignable 1202227825Stheraven : public __is_assignable_imp<_Tp, _Arg> {}; 1203227825Stheraven 1204227825Stheraven// is_copy_assignable 1205227825Stheraven 1206227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_copy_assignable 1207227825Stheraven : public is_assignable<typename add_lvalue_reference<_Tp>::type, 1208227825Stheraven const typename add_lvalue_reference<_Tp>::type> {}; 1209227825Stheraven 1210227825Stheraven// is_move_assignable 1211227825Stheraven 1212227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_move_assignable 1213227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1214227825Stheraven : public is_assignable<typename add_lvalue_reference<_Tp>::type, 1215227825Stheraven const typename add_rvalue_reference<_Tp>::type> {}; 1216227825Stheraven#else 1217227825Stheraven : public is_copy_assignable<_Tp> {}; 1218227825Stheraven#endif 1219227825Stheraven 1220227825Stheraven// is_destructible 1221227825Stheraven 1222227825Stheraventemplate <class _Tp> 1223227825Stheravenstruct __destructible_test 1224227825Stheraven{ 1225227825Stheraven _Tp __t; 1226227825Stheraven}; 1227227825Stheraven 1228227825Stheraventemplate <class _Tp> 1229227825Stheravendecltype((_VSTD::declval<__destructible_test<_Tp> >().~__destructible_test<_Tp>(), true_type())) 1230227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1231227825Stheraven__is_destructible_test(_Tp&&); 1232227825Stheraven#else 1233227825Stheraven__is_destructible_test(_Tp&); 1234227825Stheraven#endif 1235227825Stheraven 1236227825Stheravenfalse_type 1237227825Stheraven__is_destructible_test(__any); 1238227825Stheraven 1239227825Stheraventemplate <class _Tp, bool = is_void<_Tp>::value || is_abstract<_Tp>::value> 1240227825Stheravenstruct __destructible_imp 1241227825Stheraven : public common_type 1242227825Stheraven < 1243227825Stheraven decltype(__is_destructible_test(declval<_Tp>())) 1244227825Stheraven >::type {}; 1245227825Stheraven 1246227825Stheraventemplate <class _Tp> 1247227825Stheravenstruct __destructible_imp<_Tp, true> 1248227825Stheraven : public false_type {}; 1249227825Stheraven 1250227825Stheraventemplate <class _Tp> 1251227825Stheravenstruct is_destructible 1252227825Stheraven : public __destructible_imp<_Tp> {}; 1253227825Stheraven 1254227825Stheraven// move 1255227825Stheraven 1256227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1257227825Stheraven 1258227825Stheraventemplate <class _Tp> 1259227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1260227825Stheraventypename remove_reference<_Tp>::type&& 1261227825Stheravenmove(_Tp&& __t) _NOEXCEPT 1262227825Stheraven{ 1263227825Stheraven typedef typename remove_reference<_Tp>::type _Up; 1264227825Stheraven return static_cast<_Up&&>(__t); 1265227825Stheraven} 1266227825Stheraven 1267227825Stheraventemplate <class _Tp> 1268227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1269227825Stheraven_Tp&& 1270227825Stheravenforward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT 1271227825Stheraven{ 1272227825Stheraven return static_cast<_Tp&&>(__t); 1273227825Stheraven} 1274227825Stheraven 1275227825Stheraventemplate <class _Tp> 1276227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1277227825Stheraven_Tp&& 1278227825Stheravenforward(typename std::remove_reference<_Tp>::type&& __t) _NOEXCEPT 1279227825Stheraven{ 1280227825Stheraven static_assert(!std::is_lvalue_reference<_Tp>::value, 1281227825Stheraven "Can not forward an rvalue as an lvalue."); 1282227825Stheraven return static_cast<_Tp&&>(__t); 1283227825Stheraven} 1284227825Stheraven 1285227825Stheraven#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1286227825Stheraven 1287227825Stheraventemplate <class _Tp> 1288227825Stheravenclass __rv 1289227825Stheraven{ 1290227825Stheraven typedef typename remove_reference<_Tp>::type _Trr; 1291227825Stheraven _Trr& t_; 1292227825Stheravenpublic: 1293227825Stheraven _LIBCPP_INLINE_VISIBILITY 1294227825Stheraven _Trr* operator->() {return &t_;} 1295227825Stheraven _LIBCPP_INLINE_VISIBILITY 1296227825Stheraven explicit __rv(_Trr& __t) : t_(__t) {} 1297227825Stheraven}; 1298227825Stheraven 1299227825Stheraventemplate <class _Tp> 1300227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1301227825Stheraventypename enable_if 1302227825Stheraven< 1303227825Stheraven !is_convertible<_Tp, __rv<_Tp> >::value, 1304227825Stheraven _Tp& 1305227825Stheraven>::type 1306227825Stheravenmove(_Tp& __t) 1307227825Stheraven{ 1308227825Stheraven return __t; 1309227825Stheraven} 1310227825Stheraven 1311227825Stheraventemplate <class _Tp> 1312227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1313227825Stheraventypename enable_if 1314227825Stheraven< 1315227825Stheraven is_convertible<_Tp, __rv<_Tp> >::value, 1316227825Stheraven _Tp 1317227825Stheraven>::type 1318227825Stheravenmove(_Tp& __t) 1319227825Stheraven{ 1320227825Stheraven return _Tp(__rv<_Tp>(__t)); 1321227825Stheraven} 1322227825Stheraven 1323227825Stheraventemplate <class _Tp, class _Up> 1324227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1325227825Stheraventypename enable_if 1326227825Stheraven< 1327227825Stheraven !is_convertible<_Tp, __rv<_Tp> >::value, 1328227825Stheraven typename add_lvalue_reference<_Tp>::type 1329227825Stheraven>::type 1330227825Stheravenforward(_Up& __t) 1331227825Stheraven{ 1332227825Stheraven return __t; 1333227825Stheraven} 1334227825Stheraven 1335227825Stheraventemplate <class _Tp, class _Up> 1336227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1337227825Stheraventypename enable_if 1338227825Stheraven< 1339227825Stheraven !is_convertible<_Tp, __rv<_Tp> >::value, 1340227825Stheraven typename add_lvalue_reference<_Tp>::type 1341227825Stheraven>::type 1342227825Stheravenforward(const _Up& __t) 1343227825Stheraven{ 1344227825Stheraven return __t; 1345227825Stheraven} 1346227825Stheraven 1347227825Stheraventemplate <class _Tp, class _Up> 1348227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1349227825Stheraventypename enable_if 1350227825Stheraven< 1351227825Stheraven is_convertible<_Tp, __rv<_Tp> >::value, 1352227825Stheraven _Tp 1353227825Stheraven>::type 1354227825Stheravenforward(_Up& __t) 1355227825Stheraven{ 1356227825Stheraven return _Tp(__rv<_Tp>(__t)); 1357227825Stheraven} 1358227825Stheraven 1359227825Stheraventemplate <class _Tp, class _Up> 1360227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1361227825Stheraventypename enable_if 1362227825Stheraven< 1363227825Stheraven is_convertible<_Tp, __rv<_Tp> >::value, 1364227825Stheraven _Tp 1365227825Stheraven>::type 1366227825Stheravenforward(const _Up& __t) 1367227825Stheraven{ 1368227825Stheraven return _Tp(__rv<_Tp>(__t)); 1369227825Stheraven} 1370227825Stheraven 1371227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1372227825Stheraven 1373227825Stheraventemplate <class _Tp> 1374227825Stheravenstruct _LIBCPP_VISIBLE decay 1375227825Stheraven{ 1376227825Stheravenprivate: 1377227825Stheraven typedef typename remove_reference<_Tp>::type _Up; 1378227825Stheravenpublic: 1379227825Stheraven typedef typename conditional 1380227825Stheraven < 1381227825Stheraven is_array<_Up>::value, 1382227825Stheraven typename remove_extent<_Up>::type*, 1383227825Stheraven typename conditional 1384227825Stheraven < 1385227825Stheraven is_function<_Up>::value, 1386227825Stheraven typename add_pointer<_Up>::type, 1387227825Stheraven typename remove_cv<_Up>::type 1388227825Stheraven >::type 1389227825Stheraven >::type type; 1390227825Stheraven}; 1391227825Stheraven 1392227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1393227825Stheraven 1394227825Stheraventemplate <class _Tp> 1395227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1396227825Stheraventypename decay<_Tp>::type 1397227825Stheraven__decay_copy(_Tp&& __t) 1398227825Stheraven{ 1399227825Stheraven return _VSTD::forward<_Tp>(__t); 1400227825Stheraven} 1401227825Stheraven 1402227825Stheraven#else 1403227825Stheraven 1404227825Stheraventemplate <class _Tp> 1405227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1406227825Stheraventypename decay<_Tp>::type 1407227825Stheraven__decay_copy(const _Tp& __t) 1408227825Stheraven{ 1409227825Stheraven return _VSTD::forward<_Tp>(__t); 1410227825Stheraven} 1411227825Stheraven 1412227825Stheraven#endif 1413227825Stheraven 1414227825Stheraventemplate <class _MP, bool _IsMemberFuctionPtr, bool _IsMemberObjectPtr> 1415227825Stheravenstruct __member_pointer_traits_imp 1416227825Stheraven{ 1417227825Stheraven}; 1418227825Stheraven 1419227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 1420227825Stheraven 1421227825Stheraventemplate <class _R, class _Class, class ..._Param> 1422227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...), true, false> 1423227825Stheraven{ 1424227825Stheraven typedef _Class _ClassType; 1425227825Stheraven typedef _R _ReturnType; 1426227825Stheraven}; 1427227825Stheraven 1428227825Stheraventemplate <class _R, class _Class, class ..._Param> 1429227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const, true, false> 1430227825Stheraven{ 1431227825Stheraven typedef _Class const _ClassType; 1432227825Stheraven typedef _R _ReturnType; 1433227825Stheraven}; 1434227825Stheraven 1435227825Stheraventemplate <class _R, class _Class, class ..._Param> 1436227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) volatile, true, false> 1437227825Stheraven{ 1438227825Stheraven typedef _Class volatile _ClassType; 1439227825Stheraven typedef _R _ReturnType; 1440227825Stheraven}; 1441227825Stheraven 1442227825Stheraventemplate <class _R, class _Class, class ..._Param> 1443227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const volatile, true, false> 1444227825Stheraven{ 1445227825Stheraven typedef _Class const volatile _ClassType; 1446227825Stheraven typedef _R _ReturnType; 1447227825Stheraven}; 1448227825Stheraven 1449227825Stheraven#if __has_feature(cxx_reference_qualified_functions) 1450227825Stheraven 1451227825Stheraventemplate <class _R, class _Class, class ..._Param> 1452227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) &, true, false> 1453227825Stheraven{ 1454227825Stheraven typedef _Class& _ClassType; 1455227825Stheraven typedef _R _ReturnType; 1456227825Stheraven}; 1457227825Stheraven 1458227825Stheraventemplate <class _R, class _Class, class ..._Param> 1459227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const&, true, false> 1460227825Stheraven{ 1461227825Stheraven typedef _Class const& _ClassType; 1462227825Stheraven typedef _R _ReturnType; 1463227825Stheraven}; 1464227825Stheraven 1465227825Stheraventemplate <class _R, class _Class, class ..._Param> 1466227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) volatile&, true, false> 1467227825Stheraven{ 1468227825Stheraven typedef _Class volatile& _ClassType; 1469227825Stheraven typedef _R _ReturnType; 1470227825Stheraven}; 1471227825Stheraven 1472227825Stheraventemplate <class _R, class _Class, class ..._Param> 1473227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const volatile&, true, false> 1474227825Stheraven{ 1475227825Stheraven typedef _Class const volatile& _ClassType; 1476227825Stheraven typedef _R _ReturnType; 1477227825Stheraven}; 1478227825Stheraven 1479227825Stheraventemplate <class _R, class _Class, class ..._Param> 1480227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) &&, true, false> 1481227825Stheraven{ 1482227825Stheraven typedef _Class&& _ClassType; 1483227825Stheraven typedef _R _ReturnType; 1484227825Stheraven}; 1485227825Stheraven 1486227825Stheraventemplate <class _R, class _Class, class ..._Param> 1487227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const&&, true, false> 1488227825Stheraven{ 1489227825Stheraven typedef _Class const&& _ClassType; 1490227825Stheraven typedef _R _ReturnType; 1491227825Stheraven}; 1492227825Stheraven 1493227825Stheraventemplate <class _R, class _Class, class ..._Param> 1494227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) volatile&&, true, false> 1495227825Stheraven{ 1496227825Stheraven typedef _Class volatile&& _ClassType; 1497227825Stheraven typedef _R _ReturnType; 1498227825Stheraven}; 1499227825Stheraven 1500227825Stheraventemplate <class _R, class _Class, class ..._Param> 1501227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const volatile&&, true, false> 1502227825Stheraven{ 1503227825Stheraven typedef _Class const volatile&& _ClassType; 1504227825Stheraven typedef _R _ReturnType; 1505227825Stheraven}; 1506227825Stheraven 1507227825Stheraven#endif // __has_feature(cxx_reference_qualified_functions) 1508227825Stheraven 1509227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1510227825Stheraven 1511227825Stheraventemplate <class _R, class _Class> 1512227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(), true, false> 1513227825Stheraven{ 1514227825Stheraven typedef _Class _ClassType; 1515227825Stheraven typedef _R _ReturnType; 1516227825Stheraven}; 1517227825Stheraven 1518227825Stheraventemplate <class _R, class _Class, class _P0> 1519227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0), true, false> 1520227825Stheraven{ 1521227825Stheraven typedef _Class _ClassType; 1522227825Stheraven typedef _R _ReturnType; 1523227825Stheraven}; 1524227825Stheraven 1525227825Stheraventemplate <class _R, class _Class, class _P0, class _P1> 1526227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1), true, false> 1527227825Stheraven{ 1528227825Stheraven typedef _Class _ClassType; 1529227825Stheraven typedef _R _ReturnType; 1530227825Stheraven}; 1531227825Stheraven 1532227825Stheraventemplate <class _R, class _Class, class _P0, class _P1, class _P2> 1533227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2), true, false> 1534227825Stheraven{ 1535227825Stheraven typedef _Class _ClassType; 1536227825Stheraven typedef _R _ReturnType; 1537227825Stheraven}; 1538227825Stheraven 1539227825Stheraventemplate <class _R, class _Class> 1540227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)() const, true, false> 1541227825Stheraven{ 1542227825Stheraven typedef _Class const _ClassType; 1543227825Stheraven typedef _R _ReturnType; 1544227825Stheraven}; 1545227825Stheraven 1546227825Stheraventemplate <class _R, class _Class, class _P0> 1547227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0) const, true, false> 1548227825Stheraven{ 1549227825Stheraven typedef _Class const _ClassType; 1550227825Stheraven typedef _R _ReturnType; 1551227825Stheraven}; 1552227825Stheraven 1553227825Stheraventemplate <class _R, class _Class, class _P0, class _P1> 1554227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1) const, true, false> 1555227825Stheraven{ 1556227825Stheraven typedef _Class const _ClassType; 1557227825Stheraven typedef _R _ReturnType; 1558227825Stheraven}; 1559227825Stheraven 1560227825Stheraventemplate <class _R, class _Class, class _P0, class _P1, class _P2> 1561227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2) const, true, false> 1562227825Stheraven{ 1563227825Stheraven typedef _Class const _ClassType; 1564227825Stheraven typedef _R _ReturnType; 1565227825Stheraven}; 1566227825Stheraven 1567227825Stheraventemplate <class _R, class _Class> 1568227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)() volatile, true, false> 1569227825Stheraven{ 1570227825Stheraven typedef _Class volatile _ClassType; 1571227825Stheraven typedef _R _ReturnType; 1572227825Stheraven}; 1573227825Stheraven 1574227825Stheraventemplate <class _R, class _Class, class _P0> 1575227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0) volatile, true, false> 1576227825Stheraven{ 1577227825Stheraven typedef _Class volatile _ClassType; 1578227825Stheraven typedef _R _ReturnType; 1579227825Stheraven}; 1580227825Stheraven 1581227825Stheraventemplate <class _R, class _Class, class _P0, class _P1> 1582227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1) volatile, true, false> 1583227825Stheraven{ 1584227825Stheraven typedef _Class volatile _ClassType; 1585227825Stheraven typedef _R _ReturnType; 1586227825Stheraven}; 1587227825Stheraven 1588227825Stheraventemplate <class _R, class _Class, class _P0, class _P1, class _P2> 1589227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2) volatile, true, false> 1590227825Stheraven{ 1591227825Stheraven typedef _Class volatile _ClassType; 1592227825Stheraven typedef _R _ReturnType; 1593227825Stheraven}; 1594227825Stheraven 1595227825Stheraventemplate <class _R, class _Class> 1596227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)() const volatile, true, false> 1597227825Stheraven{ 1598227825Stheraven typedef _Class const volatile _ClassType; 1599227825Stheraven typedef _R _ReturnType; 1600227825Stheraven}; 1601227825Stheraven 1602227825Stheraventemplate <class _R, class _Class, class _P0> 1603227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0) const volatile, true, false> 1604227825Stheraven{ 1605227825Stheraven typedef _Class const volatile _ClassType; 1606227825Stheraven typedef _R _ReturnType; 1607227825Stheraven}; 1608227825Stheraven 1609227825Stheraventemplate <class _R, class _Class, class _P0, class _P1> 1610227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1) const volatile, true, false> 1611227825Stheraven{ 1612227825Stheraven typedef _Class const volatile _ClassType; 1613227825Stheraven typedef _R _ReturnType; 1614227825Stheraven}; 1615227825Stheraven 1616227825Stheraventemplate <class _R, class _Class, class _P0, class _P1, class _P2> 1617227825Stheravenstruct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2) const volatile, true, false> 1618227825Stheraven{ 1619227825Stheraven typedef _Class const volatile _ClassType; 1620227825Stheraven typedef _R _ReturnType; 1621227825Stheraven}; 1622227825Stheraven 1623227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 1624227825Stheraven 1625227825Stheraventemplate <class _R, class _Class> 1626227825Stheravenstruct __member_pointer_traits_imp<_R _Class::*, false, true> 1627227825Stheraven{ 1628227825Stheraven typedef _Class _ClassType; 1629227825Stheraven typedef _R _ReturnType; 1630227825Stheraven}; 1631227825Stheraven 1632227825Stheraventemplate <class _MP> 1633227825Stheravenstruct __member_pointer_traits 1634227825Stheraven : public __member_pointer_traits_imp<_MP, 1635227825Stheraven is_member_function_pointer<_MP>::value, 1636227825Stheraven is_member_object_pointer<_MP>::value> 1637227825Stheraven{ 1638227825Stheraven// typedef ... _ClassType; 1639227825Stheraven// typedef ... _ReturnType; 1640227825Stheraven}; 1641227825Stheraven 1642227825Stheraven// result_of 1643227825Stheraven 1644227825Stheraventemplate <class _Callable> class result_of; 1645227825Stheraven 1646227825Stheraventemplate <class _Fn, bool, bool> 1647227825Stheravenclass __result_of 1648227825Stheraven{ 1649227825Stheraven}; 1650227825Stheraven 1651227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 1652227825Stheraven 1653227825Stheraventemplate <class _Fn, class ..._ArgTypes> 1654227825Stheravenclass __result_of<_Fn(_ArgTypes...), true, false> 1655227825Stheraven{ 1656227825Stheravenpublic: 1657227825Stheraven typedef decltype(declval<_Fn>()(declval<_ArgTypes>()...)) type; 1658227825Stheraven}; 1659227825Stheraven 1660227825Stheraventemplate <class _MP, class _Tp, bool _IsMemberFunctionPtr> 1661227825Stheravenstruct __result_of_mp; 1662227825Stheraven 1663227825Stheraven// member function pointer 1664227825Stheraven 1665227825Stheraventemplate <class _MP, class _Tp> 1666227825Stheravenstruct __result_of_mp<_MP, _Tp, true> 1667227825Stheraven : public common_type<typename __member_pointer_traits<_MP>::_ReturnType> 1668227825Stheraven{ 1669227825Stheraven}; 1670227825Stheraven 1671227825Stheraven// member data pointer 1672227825Stheraven 1673227825Stheraventemplate <class _MP, class _Tp, bool> 1674227825Stheravenstruct __result_of_mdp; 1675227825Stheraven 1676227825Stheraventemplate <class _R, class _Class, class _Tp> 1677227825Stheravenstruct __result_of_mdp<_R _Class::*, _Tp, false> 1678227825Stheraven{ 1679227825Stheraven typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _R>::type&& type; 1680227825Stheraven}; 1681227825Stheraven 1682227825Stheraventemplate <class _R, class _Class, class _Tp> 1683227825Stheravenstruct __result_of_mdp<_R _Class::*, _Tp, true> 1684227825Stheraven{ 1685227825Stheraven typedef typename __apply_cv<_Tp, _R>::type&& type; 1686227825Stheraven}; 1687227825Stheraven 1688227825Stheraventemplate <class _R, class _Class, class _Tp> 1689227825Stheravenstruct __result_of_mp<_R _Class::*, _Tp, false> 1690227825Stheraven : public __result_of_mdp<_R _Class::*, _Tp, 1691227825Stheraven is_base_of<_Class, typename remove_reference<_Tp>::type>::value> 1692227825Stheraven{ 1693227825Stheraven}; 1694227825Stheraven 1695227825Stheraventemplate <class _Fn, class _Tp, class ..._ArgTypes> 1696227825Stheravenclass __result_of<_Fn(_Tp, _ArgTypes...), false, true> // _Fn must be member pointer 1697227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1698227825Stheraven _Tp, 1699227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1700227825Stheraven{ 1701227825Stheraven}; 1702227825Stheraven 1703227825Stheraven// result_of 1704227825Stheraven 1705227825Stheraventemplate <class _Fn, class ..._ArgTypes> 1706227825Stheravenclass _LIBCPP_VISIBLE result_of<_Fn(_ArgTypes...)> 1707227825Stheraven : public __result_of<_Fn(_ArgTypes...), 1708227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1709227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1710227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1711227825Stheraven > 1712227825Stheraven{ 1713227825Stheraven}; 1714227825Stheraven 1715227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1716227825Stheraven 1717227825Stheraventemplate <class _Fn> 1718227825Stheravenclass __result_of<_Fn(), true, false> 1719227825Stheraven{ 1720227825Stheravenpublic: 1721227825Stheraven typedef decltype(declval<_Fn>()()) type; 1722227825Stheraven}; 1723227825Stheraven 1724227825Stheraventemplate <class _Fn, class _A0> 1725227825Stheravenclass __result_of<_Fn(_A0), true, false> 1726227825Stheraven{ 1727227825Stheravenpublic: 1728227825Stheraven typedef decltype(declval<_Fn>()(declval<_A0>())) type; 1729227825Stheraven}; 1730227825Stheraven 1731227825Stheraventemplate <class _Fn, class _A0, class _A1> 1732227825Stheravenclass __result_of<_Fn(_A0, _A1), true, false> 1733227825Stheraven{ 1734227825Stheravenpublic: 1735227825Stheraven typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>())) type; 1736227825Stheraven}; 1737227825Stheraven 1738227825Stheraventemplate <class _Fn, class _A0, class _A1, class _A2> 1739227825Stheravenclass __result_of<_Fn(_A0, _A1, _A2), true, false> 1740227825Stheraven{ 1741227825Stheravenpublic: 1742227825Stheraven typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>(), declval<_A2>())) type; 1743227825Stheraven}; 1744227825Stheraven 1745227825Stheraventemplate <class _MP, class _Tp, bool _IsMemberFunctionPtr> 1746227825Stheravenstruct __result_of_mp; 1747227825Stheraven 1748227825Stheraven// member function pointer 1749227825Stheraven 1750227825Stheraventemplate <class _MP, class _Tp> 1751227825Stheravenstruct __result_of_mp<_MP, _Tp, true> 1752227825Stheraven : public common_type<typename __member_pointer_traits<_MP>::_ReturnType> 1753227825Stheraven{ 1754227825Stheraven}; 1755227825Stheraven 1756227825Stheraven// member data pointer 1757227825Stheraven 1758227825Stheraventemplate <class _MP, class _Tp, bool> 1759227825Stheravenstruct __result_of_mdp; 1760227825Stheraven 1761227825Stheraventemplate <class _R, class _Class, class _Tp> 1762227825Stheravenstruct __result_of_mdp<_R _Class::*, _Tp, false> 1763227825Stheraven{ 1764227825Stheraven typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _R>::type& type; 1765227825Stheraven}; 1766227825Stheraven 1767227825Stheraventemplate <class _R, class _Class, class _Tp> 1768227825Stheravenstruct __result_of_mdp<_R _Class::*, _Tp, true> 1769227825Stheraven{ 1770227825Stheraven typedef typename __apply_cv<_Tp, _R>::type& type; 1771227825Stheraven}; 1772227825Stheraven 1773227825Stheraventemplate <class _R, class _Class, class _Tp> 1774227825Stheravenstruct __result_of_mp<_R _Class::*, _Tp, false> 1775227825Stheraven : public __result_of_mdp<_R _Class::*, _Tp, 1776227825Stheraven is_base_of<_Class, typename remove_reference<_Tp>::type>::value> 1777227825Stheraven{ 1778227825Stheraven}; 1779227825Stheraven 1780227825Stheraven 1781227825Stheraven 1782227825Stheraventemplate <class _Fn, class _Tp> 1783227825Stheravenclass __result_of<_Fn(_Tp), false, true> // _Fn must be member pointer 1784227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1785227825Stheraven _Tp, 1786227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1787227825Stheraven{ 1788227825Stheraven}; 1789227825Stheraven 1790227825Stheraventemplate <class _Fn, class _Tp, class _A0> 1791227825Stheravenclass __result_of<_Fn(_Tp, _A0), false, true> // _Fn must be member pointer 1792227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1793227825Stheraven _Tp, 1794227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1795227825Stheraven{ 1796227825Stheraven}; 1797227825Stheraven 1798227825Stheraventemplate <class _Fn, class _Tp, class _A0, class _A1> 1799227825Stheravenclass __result_of<_Fn(_Tp, _A0, _A1), false, true> // _Fn must be member pointer 1800227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1801227825Stheraven _Tp, 1802227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1803227825Stheraven{ 1804227825Stheraven}; 1805227825Stheraven 1806227825Stheraventemplate <class _Fn, class _Tp, class _A0, class _A1, class _A2> 1807227825Stheravenclass __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true> // _Fn must be member pointer 1808227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1809227825Stheraven _Tp, 1810227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1811227825Stheraven{ 1812227825Stheraven}; 1813227825Stheraven 1814227825Stheraven// result_of 1815227825Stheraven 1816227825Stheraventemplate <class _Fn> 1817227825Stheravenclass _LIBCPP_VISIBLE result_of<_Fn()> 1818227825Stheraven : public __result_of<_Fn(), 1819227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1820227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1821227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1822227825Stheraven > 1823227825Stheraven{ 1824227825Stheraven}; 1825227825Stheraven 1826227825Stheraventemplate <class _Fn, class _A0> 1827227825Stheravenclass _LIBCPP_VISIBLE result_of<_Fn(_A0)> 1828227825Stheraven : public __result_of<_Fn(_A0), 1829227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1830227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1831227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1832227825Stheraven > 1833227825Stheraven{ 1834227825Stheraven}; 1835227825Stheraven 1836227825Stheraventemplate <class _Fn, class _A0, class _A1> 1837227825Stheravenclass _LIBCPP_VISIBLE result_of<_Fn(_A0, _A1)> 1838227825Stheraven : public __result_of<_Fn(_A0, _A1), 1839227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1840227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1841227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1842227825Stheraven > 1843227825Stheraven{ 1844227825Stheraven}; 1845227825Stheraven 1846227825Stheraventemplate <class _Fn, class _A0, class _A1, class _A2> 1847227825Stheravenclass _LIBCPP_VISIBLE result_of<_Fn(_A0, _A1, _A2)> 1848227825Stheraven : public __result_of<_Fn(_A0, _A1, _A2), 1849227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1850227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1851227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1852227825Stheraven > 1853227825Stheraven{ 1854227825Stheraven}; 1855227825Stheraven 1856227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 1857227825Stheraven 1858227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 1859227825Stheraven 1860227825Stheraven// template <class T, class... Args> struct is_constructible; 1861227825Stheraven 1862227825Stheraven// main is_constructible test 1863227825Stheraven 1864227825Stheraventemplate <class _Tp, class ..._Args> 1865227825Stheravendecltype(_VSTD::move(_Tp(_VSTD::declval<_Args>()...)), true_type()) 1866227825Stheraven__is_constructible_test(_Tp&&, _Args&& ...); 1867227825Stheraven 1868227825Stheraventemplate <class ..._Args> 1869227825Stheravenfalse_type 1870227825Stheraven__is_constructible_test(__any, _Args&& ...); 1871227825Stheraven 1872227825Stheraventemplate <bool, class _Tp, class... _Args> 1873227825Stheravenstruct __is_constructible // false, _Tp is not a scalar 1874227825Stheraven : public common_type 1875227825Stheraven < 1876227825Stheraven decltype(__is_constructible_test(declval<_Tp>(), declval<_Args>()...)) 1877227825Stheraven >::type 1878227825Stheraven {}; 1879227825Stheraven 1880227825Stheraven// function types are not constructible 1881227825Stheraven 1882227825Stheraventemplate <class _R, class... _A1, class... _A2> 1883227825Stheravenstruct __is_constructible<false, _R(_A1...), _A2...> 1884227825Stheraven : public false_type 1885227825Stheraven {}; 1886227825Stheraven 1887227825Stheraven// handle scalars and reference types 1888227825Stheraven 1889227825Stheraven// Scalars are default constructible, references are not 1890227825Stheraven 1891227825Stheraventemplate <class _Tp> 1892227825Stheravenstruct __is_constructible<true, _Tp> 1893227825Stheraven : public is_scalar<_Tp> 1894227825Stheraven {}; 1895227825Stheraven 1896227825Stheraven// Scalars and references are constructible from one arg if that arg is 1897227825Stheraven// implicitly convertible to the scalar or reference. 1898227825Stheraven 1899227825Stheraventemplate <class _Tp> 1900227825Stheravenstruct __is_constructible_ref 1901227825Stheraven{ 1902227825Stheraven true_type static __(_Tp); 1903227825Stheraven false_type static __(...); 1904227825Stheraven}; 1905227825Stheraven 1906227825Stheraventemplate <class _Tp, class _A0> 1907227825Stheravenstruct __is_constructible<true, _Tp, _A0> 1908227825Stheraven : public common_type 1909227825Stheraven < 1910227825Stheraven decltype(__is_constructible_ref<_Tp>::__(declval<_A0>())) 1911227825Stheraven >::type 1912227825Stheraven {}; 1913227825Stheraven 1914227825Stheraven// Scalars and references are not constructible from multiple args. 1915227825Stheraven 1916227825Stheraventemplate <class _Tp, class _A0, class ..._Args> 1917227825Stheravenstruct __is_constructible<true, _Tp, _A0, _Args...> 1918227825Stheraven : public false_type 1919227825Stheraven {}; 1920227825Stheraven 1921227825Stheraven// Treat scalars and reference types separately 1922227825Stheraven 1923227825Stheraventemplate <bool, class _Tp, class... _Args> 1924227825Stheravenstruct __is_constructible_void_check 1925227825Stheraven : public __is_constructible<is_scalar<_Tp>::value || is_reference<_Tp>::value, 1926227825Stheraven _Tp, _Args...> 1927227825Stheraven {}; 1928227825Stheraven 1929227825Stheraven// If any of T or Args is void, is_constructible should be false 1930227825Stheraven 1931227825Stheraventemplate <class _Tp, class... _Args> 1932227825Stheravenstruct __is_constructible_void_check<true, _Tp, _Args...> 1933227825Stheraven : public false_type 1934227825Stheraven {}; 1935227825Stheraven 1936227825Stheraventemplate <class ..._Args> struct __contains_void; 1937227825Stheraven 1938227825Stheraventemplate <> struct __contains_void<> : false_type {}; 1939227825Stheraven 1940227825Stheraventemplate <class _A0, class ..._Args> 1941227825Stheravenstruct __contains_void<_A0, _Args...> 1942227825Stheraven{ 1943227825Stheraven static const bool value = is_void<_A0>::value || 1944227825Stheraven __contains_void<_Args...>::value; 1945227825Stheraven}; 1946227825Stheraven 1947227825Stheraven// is_constructible entry point 1948227825Stheraven 1949227825Stheraventemplate <class _Tp, class... _Args> 1950227825Stheravenstruct _LIBCPP_VISIBLE is_constructible 1951227825Stheraven : public __is_constructible_void_check<__contains_void<_Tp, _Args...>::value 1952227825Stheraven || is_abstract<_Tp>::value, 1953227825Stheraven _Tp, _Args...> 1954227825Stheraven {}; 1955227825Stheraven 1956227825Stheraven// Array types are default constructible if their element type 1957227825Stheraven// is default constructible 1958227825Stheraven 1959227825Stheraventemplate <class _A, size_t _N> 1960227825Stheravenstruct __is_constructible<false, _A[_N]> 1961227825Stheraven : public is_constructible<typename remove_all_extents<_A>::type> 1962227825Stheraven {}; 1963227825Stheraven 1964227825Stheraven// Otherwise array types are not constructible by this syntax 1965227825Stheraven 1966227825Stheraventemplate <class _A, size_t _N, class ..._Args> 1967227825Stheravenstruct __is_constructible<false, _A[_N], _Args...> 1968227825Stheraven : public false_type 1969227825Stheraven {}; 1970227825Stheraven 1971227825Stheraven// Incomplete array types are not constructible 1972227825Stheraven 1973227825Stheraventemplate <class _A, class ..._Args> 1974227825Stheravenstruct __is_constructible<false, _A[], _Args...> 1975227825Stheraven : public false_type 1976227825Stheraven {}; 1977227825Stheraven 1978227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1979227825Stheraven 1980227825Stheraven// template <class T> struct is_constructible0; 1981227825Stheraven 1982227825Stheraven// main is_constructible0 test 1983227825Stheraven 1984227825Stheraventemplate <class _Tp> 1985227825Stheravendecltype((_Tp(), true_type())) 1986227825Stheraven__is_constructible0_test(_Tp&); 1987227825Stheraven 1988227825Stheravenfalse_type 1989227825Stheraven__is_constructible0_test(__any); 1990227825Stheraven 1991227825Stheraventemplate <class _Tp, class _A0> 1992227825Stheravendecltype((_Tp(_VSTD::declval<_A0>()), true_type())) 1993227825Stheraven__is_constructible1_test(_Tp&, _A0&); 1994227825Stheraven 1995227825Stheraventemplate <class _A0> 1996227825Stheravenfalse_type 1997227825Stheraven__is_constructible1_test(__any, _A0&); 1998227825Stheraven 1999227825Stheraventemplate <class _Tp, class _A0, class _A1> 2000227825Stheravendecltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>()), true_type())) 2001227825Stheraven__is_constructible2_test(_Tp&, _A0&, _A1&); 2002227825Stheraven 2003227825Stheraventemplate <class _A0, class _A1> 2004227825Stheravenfalse_type 2005227825Stheraven__is_constructible2_test(__any, _A0&, _A1&); 2006227825Stheraven 2007227825Stheraventemplate <bool, class _Tp> 2008227825Stheravenstruct __is_constructible0_imp // false, _Tp is not a scalar 2009227825Stheraven : public common_type 2010227825Stheraven < 2011227825Stheraven decltype(__is_constructible0_test(declval<_Tp&>())) 2012227825Stheraven >::type 2013227825Stheraven {}; 2014227825Stheraven 2015227825Stheraventemplate <bool, class _Tp, class _A0> 2016227825Stheravenstruct __is_constructible1_imp // false, _Tp is not a scalar 2017227825Stheraven : public common_type 2018227825Stheraven < 2019227825Stheraven decltype(__is_constructible1_test(declval<_Tp&>(), declval<_A0&>())) 2020227825Stheraven >::type 2021227825Stheraven {}; 2022227825Stheraven 2023227825Stheraventemplate <bool, class _Tp, class _A0, class _A1> 2024227825Stheravenstruct __is_constructible2_imp // false, _Tp is not a scalar 2025227825Stheraven : public common_type 2026227825Stheraven < 2027227825Stheraven decltype(__is_constructible2_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>())) 2028227825Stheraven >::type 2029227825Stheraven {}; 2030227825Stheraven 2031227825Stheraven// handle scalars and reference types 2032227825Stheraven 2033227825Stheraven// Scalars are default constructible, references are not 2034227825Stheraven 2035227825Stheraventemplate <class _Tp> 2036227825Stheravenstruct __is_constructible0_imp<true, _Tp> 2037227825Stheraven : public is_scalar<_Tp> 2038227825Stheraven {}; 2039227825Stheraven 2040227825Stheraventemplate <class _Tp, class _A0> 2041227825Stheravenstruct __is_constructible1_imp<true, _Tp, _A0> 2042227825Stheraven : public is_convertible<_A0, _Tp> 2043227825Stheraven {}; 2044227825Stheraven 2045227825Stheraventemplate <class _Tp, class _A0, class _A1> 2046227825Stheravenstruct __is_constructible2_imp<true, _Tp, _A0, _A1> 2047227825Stheraven : public false_type 2048227825Stheraven {}; 2049227825Stheraven 2050227825Stheraven// Treat scalars and reference types separately 2051227825Stheraven 2052227825Stheraventemplate <bool, class _Tp> 2053227825Stheravenstruct __is_constructible0_void_check 2054227825Stheraven : public __is_constructible0_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, 2055227825Stheraven _Tp> 2056227825Stheraven {}; 2057227825Stheraven 2058227825Stheraventemplate <bool, class _Tp, class _A0> 2059227825Stheravenstruct __is_constructible1_void_check 2060227825Stheraven : public __is_constructible1_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, 2061227825Stheraven _Tp, _A0> 2062227825Stheraven {}; 2063227825Stheraven 2064227825Stheraventemplate <bool, class _Tp, class _A0, class _A1> 2065227825Stheravenstruct __is_constructible2_void_check 2066227825Stheraven : public __is_constructible2_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, 2067227825Stheraven _Tp, _A0, _A1> 2068227825Stheraven {}; 2069227825Stheraven 2070227825Stheraven// If any of T or Args is void, is_constructible should be false 2071227825Stheraven 2072227825Stheraventemplate <class _Tp> 2073227825Stheravenstruct __is_constructible0_void_check<true, _Tp> 2074227825Stheraven : public false_type 2075227825Stheraven {}; 2076227825Stheraven 2077227825Stheraventemplate <class _Tp, class _A0> 2078227825Stheravenstruct __is_constructible1_void_check<true, _Tp, _A0> 2079227825Stheraven : public false_type 2080227825Stheraven {}; 2081227825Stheraven 2082227825Stheraventemplate <class _Tp, class _A0, class _A1> 2083227825Stheravenstruct __is_constructible2_void_check<true, _Tp, _A0, _A1> 2084227825Stheraven : public false_type 2085227825Stheraven {}; 2086227825Stheraven 2087227825Stheraven// is_constructible entry point 2088227825Stheraven 2089227825Stheravennamespace __is_construct 2090227825Stheraven{ 2091227825Stheraven 2092227825Stheravenstruct __nat {}; 2093227825Stheraven 2094227825Stheraven} 2095227825Stheraven 2096227825Stheraventemplate <class _Tp, class _A0 = __is_construct::__nat, 2097227825Stheraven class _A1 = __is_construct::__nat> 2098227825Stheravenstruct _LIBCPP_VISIBLE is_constructible 2099227825Stheraven : public __is_constructible2_void_check<is_void<_Tp>::value 2100227825Stheraven || is_abstract<_Tp>::value 2101227825Stheraven || is_function<_Tp>::value 2102227825Stheraven || is_void<_A0>::value 2103227825Stheraven || is_void<_A1>::value, 2104227825Stheraven _Tp, _A0, _A1> 2105227825Stheraven {}; 2106227825Stheraven 2107227825Stheraventemplate <class _Tp> 2108227825Stheravenstruct _LIBCPP_VISIBLE is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat> 2109227825Stheraven : public __is_constructible0_void_check<is_void<_Tp>::value 2110227825Stheraven || is_abstract<_Tp>::value 2111227825Stheraven || is_function<_Tp>::value, 2112227825Stheraven _Tp> 2113227825Stheraven {}; 2114227825Stheraven 2115227825Stheraventemplate <class _Tp, class _A0> 2116227825Stheravenstruct _LIBCPP_VISIBLE is_constructible<_Tp, _A0, __is_construct::__nat> 2117227825Stheraven : public __is_constructible1_void_check<is_void<_Tp>::value 2118227825Stheraven || is_abstract<_Tp>::value 2119227825Stheraven || is_function<_Tp>::value 2120227825Stheraven || is_void<_A0>::value, 2121227825Stheraven _Tp, _A0> 2122227825Stheraven {}; 2123227825Stheraven 2124227825Stheraven// Array types are default constructible if their element type 2125227825Stheraven// is default constructible 2126227825Stheraven 2127227825Stheraventemplate <class _A, size_t _N> 2128227825Stheravenstruct __is_constructible0_imp<false, _A[_N]> 2129227825Stheraven : public is_constructible<typename remove_all_extents<_A>::type> 2130227825Stheraven {}; 2131227825Stheraven 2132227825Stheraventemplate <class _A, size_t _N, class _A0> 2133227825Stheravenstruct __is_constructible1_imp<false, _A[_N], _A0> 2134227825Stheraven : public false_type 2135227825Stheraven {}; 2136227825Stheraven 2137227825Stheraventemplate <class _A, size_t _N, class _A0, class _A1> 2138227825Stheravenstruct __is_constructible2_imp<false, _A[_N], _A0, _A1> 2139227825Stheraven : public false_type 2140227825Stheraven {}; 2141227825Stheraven 2142227825Stheraven// Incomplete array types are not constructible 2143227825Stheraven 2144227825Stheraventemplate <class _A> 2145227825Stheravenstruct __is_constructible0_imp<false, _A[]> 2146227825Stheraven : public false_type 2147227825Stheraven {}; 2148227825Stheraven 2149227825Stheraventemplate <class _A, class _A0> 2150227825Stheravenstruct __is_constructible1_imp<false, _A[], _A0> 2151227825Stheraven : public false_type 2152227825Stheraven {}; 2153227825Stheraven 2154227825Stheraventemplate <class _A, class _A0, class _A1> 2155227825Stheravenstruct __is_constructible2_imp<false, _A[], _A0, _A1> 2156227825Stheraven : public false_type 2157227825Stheraven {}; 2158227825Stheraven 2159227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2160227825Stheraven 2161227825Stheraven// is_default_constructible 2162227825Stheraven 2163227825Stheraventemplate <class _Tp> 2164227825Stheravenstruct _LIBCPP_VISIBLE is_default_constructible 2165227825Stheraven : public is_constructible<_Tp> 2166227825Stheraven {}; 2167227825Stheraven 2168227825Stheraven// is_copy_constructible 2169227825Stheraven 2170227825Stheraventemplate <class _Tp> 2171227825Stheravenstruct _LIBCPP_VISIBLE is_copy_constructible 2172227825Stheraven : public is_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> 2173227825Stheraven {}; 2174227825Stheraven 2175227825Stheraven// is_move_constructible 2176227825Stheraven 2177227825Stheraventemplate <class _Tp> 2178227825Stheravenstruct _LIBCPP_VISIBLE is_move_constructible 2179227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2180227825Stheraven : public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> 2181227825Stheraven#else 2182227825Stheraven : public is_copy_constructible<_Tp> 2183227825Stheraven#endif 2184227825Stheraven {}; 2185227825Stheraven 2186227825Stheraven// is_trivially_constructible 2187227825Stheraven 2188227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 2189227825Stheraven 2190227825Stheraventemplate <class _Tp, class... _Args> 2191227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible 2192227825Stheraven : false_type 2193227825Stheraven{ 2194227825Stheraven}; 2195227825Stheraven 2196227825Stheraventemplate <class _Tp> 2197227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp> 2198227825Stheraven#if __has_feature(has_trivial_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2199227825Stheraven : integral_constant<bool, __has_trivial_constructor(_Tp)> 2200227825Stheraven#else 2201227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2202227825Stheraven#endif 2203227825Stheraven{ 2204227825Stheraven}; 2205227825Stheraven 2206227825Stheraventemplate <class _Tp> 2207227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2208227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp&&> 2209227825Stheraven#else 2210227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp> 2211227825Stheraven#endif 2212227825Stheraven#if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2213227825Stheraven : integral_constant<bool, __has_trivial_copy(_Tp)> 2214227825Stheraven#else 2215227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2216227825Stheraven#endif 2217227825Stheraven{ 2218227825Stheraven}; 2219227825Stheraven 2220227825Stheraventemplate <class _Tp> 2221227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, const _Tp&> 2222227825Stheraven#if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2223227825Stheraven : integral_constant<bool, __has_trivial_copy(_Tp)> 2224227825Stheraven#else 2225227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2226227825Stheraven#endif 2227227825Stheraven{ 2228227825Stheraven}; 2229227825Stheraven 2230227825Stheraventemplate <class _Tp> 2231227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp&> 2232227825Stheraven#if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2233227825Stheraven : integral_constant<bool, __has_trivial_copy(_Tp)> 2234227825Stheraven#else 2235227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2236227825Stheraven#endif 2237227825Stheraven{ 2238227825Stheraven}; 2239227825Stheraven 2240227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 2241227825Stheraven 2242227825Stheraventemplate <class _Tp, class _A0 = __is_construct::__nat, 2243227825Stheraven class _A1 = __is_construct::__nat> 2244227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible 2245227825Stheraven : false_type 2246227825Stheraven{ 2247227825Stheraven}; 2248227825Stheraven 2249227825Stheraventemplate <class _Tp> 2250227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, __is_construct::__nat, 2251227825Stheraven __is_construct::__nat> 2252227825Stheraven#if __has_feature(has_trivial_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2253227825Stheraven : integral_constant<bool, __has_trivial_constructor(_Tp)> 2254227825Stheraven#else 2255227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2256227825Stheraven#endif 2257227825Stheraven{ 2258227825Stheraven}; 2259227825Stheraven 2260227825Stheraventemplate <class _Tp> 2261227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp, 2262227825Stheraven __is_construct::__nat> 2263227825Stheraven#if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2264227825Stheraven : integral_constant<bool, __has_trivial_copy(_Tp)> 2265227825Stheraven#else 2266227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2267227825Stheraven#endif 2268227825Stheraven{ 2269227825Stheraven}; 2270227825Stheraven 2271227825Stheraventemplate <class _Tp> 2272227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, const _Tp&, 2273227825Stheraven __is_construct::__nat> 2274227825Stheraven#if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2275227825Stheraven : integral_constant<bool, __has_trivial_copy(_Tp)> 2276227825Stheraven#else 2277227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2278227825Stheraven#endif 2279227825Stheraven{ 2280227825Stheraven}; 2281227825Stheraven 2282227825Stheraventemplate <class _Tp> 2283227825Stheravenstruct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp&, 2284227825Stheraven __is_construct::__nat> 2285227825Stheraven#if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2286227825Stheraven : integral_constant<bool, __has_trivial_copy(_Tp)> 2287227825Stheraven#else 2288227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2289227825Stheraven#endif 2290227825Stheraven{ 2291227825Stheraven}; 2292227825Stheraven 2293227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2294227825Stheraven 2295227825Stheraven// is_trivially_default_constructible 2296227825Stheraven 2297227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_default_constructible 2298227825Stheraven : public is_trivially_constructible<_Tp> 2299227825Stheraven {}; 2300227825Stheraven 2301227825Stheraven// is_trivially_copy_constructible 2302227825Stheraven 2303227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_copy_constructible 2304227825Stheraven : public is_trivially_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> 2305227825Stheraven {}; 2306227825Stheraven 2307227825Stheraven// is_trivially_move_constructible 2308227825Stheraven 2309227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_move_constructible 2310227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2311227825Stheraven : public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> 2312227825Stheraven#else 2313227825Stheraven : public is_trivially_copy_constructible<_Tp> 2314227825Stheraven#endif 2315227825Stheraven {}; 2316227825Stheraven 2317227825Stheraven// is_trivially_assignable 2318227825Stheraven 2319227825Stheraventemplate <class _Tp, class _Arg> 2320227825Stheravenstruct is_trivially_assignable 2321227825Stheraven : public false_type {}; 2322227825Stheraven 2323227825Stheraventemplate <class _Tp> 2324227825Stheravenstruct is_trivially_assignable<_Tp&, _Tp> 2325227825Stheraven#if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2326227825Stheraven : integral_constant<bool, __has_trivial_assign(_Tp)> {}; 2327227825Stheraven#else 2328227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2329227825Stheraven#endif 2330227825Stheraven 2331227825Stheraventemplate <class _Tp> 2332227825Stheravenstruct is_trivially_assignable<_Tp&, _Tp&> 2333227825Stheraven#if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2334227825Stheraven : integral_constant<bool, __has_trivial_assign(_Tp)> {}; 2335227825Stheraven#else 2336227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2337227825Stheraven#endif 2338227825Stheraven 2339227825Stheraventemplate <class _Tp> 2340227825Stheravenstruct is_trivially_assignable<_Tp&, const _Tp&> 2341227825Stheraven#if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2342227825Stheraven : integral_constant<bool, __has_trivial_assign(_Tp)> {}; 2343227825Stheraven#else 2344227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2345227825Stheraven#endif 2346227825Stheraven 2347227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2348227825Stheraven 2349227825Stheraventemplate <class _Tp> 2350227825Stheravenstruct is_trivially_assignable<_Tp&, _Tp&&> 2351227825Stheraven#if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2352227825Stheraven : integral_constant<bool, __has_trivial_assign(_Tp)> {}; 2353227825Stheraven#else 2354227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2355227825Stheraven#endif 2356227825Stheraven 2357227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 2358227825Stheraven 2359227825Stheraven// is_trivially_copy_assignable 2360227825Stheraven 2361227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_copy_assignable 2362227825Stheraven : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, 2363227825Stheraven const typename add_lvalue_reference<_Tp>::type> 2364227825Stheraven {}; 2365227825Stheraven 2366227825Stheraven// is_trivially_move_assignable 2367227825Stheraven 2368227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_move_assignable 2369227825Stheraven : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, 2370227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2371227825Stheraven typename add_rvalue_reference<_Tp>::type> 2372227825Stheraven#else 2373227825Stheraven typename add_lvalue_reference<_Tp>::type> 2374227825Stheraven#endif 2375227825Stheraven {}; 2376227825Stheraven 2377227825Stheraven// is_trivially_destructible 2378227825Stheraven 2379227825Stheraven#if __has_feature(has_trivial_destructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2380227825Stheraven 2381227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_destructible 2382227825Stheraven : public integral_constant<bool, __has_trivial_destructor(_Tp)> {}; 2383227825Stheraven 2384227825Stheraven#else // _LIBCPP_HAS_TYPE_TRAITS 2385227825Stheraven 2386227825Stheraventemplate <class _Tp> struct __libcpp_trivial_destructor 2387227825Stheraven : public integral_constant<bool, is_scalar<_Tp>::value || 2388227825Stheraven is_reference<_Tp>::value> {}; 2389227825Stheraven 2390227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_destructible 2391227825Stheraven : public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {}; 2392227825Stheraven 2393227825Stheraven#endif // _LIBCPP_HAS_TYPE_TRAITS 2394227825Stheraven 2395227825Stheraven// is_nothrow_constructible 2396227825Stheraven 2397227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 2398227825Stheraven 2399227825Stheraven#if __has_feature(cxx_noexcept) 2400227825Stheraven 2401227825Stheraventemplate <bool, class _Tp, class... _Args> struct __is_nothrow_constructible; 2402227825Stheraven 2403227825Stheraventemplate <class _Tp, class... _Args> 2404227825Stheravenstruct __is_nothrow_constructible<true, _Tp, _Args...> 2405227825Stheraven : public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))> 2406227825Stheraven{ 2407227825Stheraven}; 2408227825Stheraven 2409227825Stheraventemplate <class _Tp, class... _Args> 2410227825Stheravenstruct __is_nothrow_constructible<false, _Tp, _Args...> 2411227825Stheraven : public false_type 2412227825Stheraven{ 2413227825Stheraven}; 2414227825Stheraven 2415227825Stheraventemplate <class _Tp, class... _Args> 2416227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible 2417227825Stheraven : __is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, _Tp, _Args...> 2418227825Stheraven{ 2419227825Stheraven}; 2420227825Stheraven 2421227825Stheraventemplate <class _Tp, size_t _Ns> 2422227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp[_Ns]> 2423227825Stheraven : __is_nothrow_constructible<is_constructible<_Tp>::value, _Tp> 2424227825Stheraven{ 2425227825Stheraven}; 2426227825Stheraven 2427227825Stheraven#else // __has_feature(cxx_noexcept) 2428227825Stheraven 2429227825Stheraventemplate <class _Tp, class... _Args> 2430227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible 2431227825Stheraven : false_type 2432227825Stheraven{ 2433227825Stheraven}; 2434227825Stheraven 2435227825Stheraventemplate <class _Tp> 2436227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp> 2437227825Stheraven#if __has_feature(has_nothrow_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2438227825Stheraven : integral_constant<bool, __has_nothrow_constructor(_Tp)> 2439227825Stheraven#else 2440227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2441227825Stheraven#endif 2442227825Stheraven{ 2443227825Stheraven}; 2444227825Stheraven 2445227825Stheraventemplate <class _Tp> 2446227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2447227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp&&> 2448227825Stheraven#else 2449227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp> 2450227825Stheraven#endif 2451227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2452227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2453227825Stheraven#else 2454227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2455227825Stheraven#endif 2456227825Stheraven{ 2457227825Stheraven}; 2458227825Stheraven 2459227825Stheraventemplate <class _Tp> 2460227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, const _Tp&> 2461227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2462227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2463227825Stheraven#else 2464227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2465227825Stheraven#endif 2466227825Stheraven{ 2467227825Stheraven}; 2468227825Stheraven 2469227825Stheraventemplate <class _Tp> 2470227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp&> 2471227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2472227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2473227825Stheraven#else 2474227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2475227825Stheraven#endif 2476227825Stheraven{ 2477227825Stheraven}; 2478227825Stheraven 2479227825Stheraven#endif // __has_feature(cxx_noexcept) 2480227825Stheraven 2481227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 2482227825Stheraven 2483227825Stheraventemplate <class _Tp, class _A0 = __is_construct::__nat, 2484227825Stheraven class _A1 = __is_construct::__nat> 2485227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible 2486227825Stheraven : false_type 2487227825Stheraven{ 2488227825Stheraven}; 2489227825Stheraven 2490227825Stheraventemplate <class _Tp> 2491227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, __is_construct::__nat, 2492227825Stheraven __is_construct::__nat> 2493227825Stheraven#if __has_feature(has_nothrow_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2494227825Stheraven : integral_constant<bool, __has_nothrow_constructor(_Tp)> 2495227825Stheraven#else 2496227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2497227825Stheraven#endif 2498227825Stheraven{ 2499227825Stheraven}; 2500227825Stheraven 2501227825Stheraventemplate <class _Tp> 2502227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp, 2503227825Stheraven __is_construct::__nat> 2504227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2505227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2506227825Stheraven#else 2507227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2508227825Stheraven#endif 2509227825Stheraven{ 2510227825Stheraven}; 2511227825Stheraven 2512227825Stheraventemplate <class _Tp> 2513227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, const _Tp&, 2514227825Stheraven __is_construct::__nat> 2515227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2516227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2517227825Stheraven#else 2518227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2519227825Stheraven#endif 2520227825Stheraven{ 2521227825Stheraven}; 2522227825Stheraven 2523227825Stheraventemplate <class _Tp> 2524227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp&, 2525227825Stheraven __is_construct::__nat> 2526227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2527227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2528227825Stheraven#else 2529227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2530227825Stheraven#endif 2531227825Stheraven{ 2532227825Stheraven}; 2533227825Stheraven 2534227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2535227825Stheraven 2536227825Stheraven// is_nothrow_default_constructible 2537227825Stheraven 2538227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_default_constructible 2539227825Stheraven : public is_nothrow_constructible<_Tp> 2540227825Stheraven {}; 2541227825Stheraven 2542227825Stheraven// is_nothrow_copy_constructible 2543227825Stheraven 2544227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_copy_constructible 2545227825Stheraven : public is_nothrow_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> 2546227825Stheraven {}; 2547227825Stheraven 2548227825Stheraven// is_nothrow_move_constructible 2549227825Stheraven 2550227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_move_constructible 2551227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2552227825Stheraven : public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> 2553227825Stheraven#else 2554227825Stheraven : public is_nothrow_copy_constructible<_Tp> 2555227825Stheraven#endif 2556227825Stheraven {}; 2557227825Stheraven 2558227825Stheraven// is_nothrow_assignable 2559227825Stheraven 2560227825Stheraven#if __has_feature(cxx_noexcept) 2561227825Stheraven 2562227825Stheraventemplate <bool, class _Tp, class _Arg> struct __is_nothrow_assignable; 2563227825Stheraven 2564227825Stheraventemplate <class _Tp, class _Arg> 2565227825Stheravenstruct __is_nothrow_assignable<false, _Tp, _Arg> 2566227825Stheraven : public false_type 2567227825Stheraven{ 2568227825Stheraven}; 2569227825Stheraven 2570227825Stheraventemplate <class _Tp, class _Arg> 2571227825Stheravenstruct __is_nothrow_assignable<true, _Tp, _Arg> 2572227825Stheraven : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>()) > 2573227825Stheraven{ 2574227825Stheraven}; 2575227825Stheraven 2576227825Stheraventemplate <class _Tp, class _Arg> 2577227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_assignable 2578227825Stheraven : public __is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg> 2579227825Stheraven{ 2580227825Stheraven}; 2581227825Stheraven 2582227825Stheraven#else // __has_feature(cxx_noexcept) 2583227825Stheraven 2584227825Stheraventemplate <class _Tp, class _Arg> 2585227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_assignable 2586227825Stheraven : public false_type {}; 2587227825Stheraven 2588227825Stheraventemplate <class _Tp> 2589227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_assignable<_Tp&, _Tp> 2590227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2591227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2592227825Stheraven#else 2593227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2594227825Stheraven#endif 2595227825Stheraven 2596227825Stheraventemplate <class _Tp> 2597227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_assignable<_Tp&, _Tp&> 2598227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2599227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2600227825Stheraven#else 2601227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2602227825Stheraven#endif 2603227825Stheraven 2604227825Stheraventemplate <class _Tp> 2605227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_assignable<_Tp&, const _Tp&> 2606227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2607227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2608227825Stheraven#else 2609227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2610227825Stheraven#endif 2611227825Stheraven 2612227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2613227825Stheraven 2614227825Stheraventemplate <class _Tp> 2615227825Stheravenstruct is_nothrow_assignable<_Tp&, _Tp&&> 2616227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2617227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2618227825Stheraven#else 2619227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2620227825Stheraven#endif 2621227825Stheraven 2622227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 2623227825Stheraven 2624227825Stheraven#endif // __has_feature(cxx_noexcept) 2625227825Stheraven 2626227825Stheraven// is_nothrow_copy_assignable 2627227825Stheraven 2628227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_copy_assignable 2629227825Stheraven : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, 2630227825Stheraven const typename add_lvalue_reference<_Tp>::type> 2631227825Stheraven {}; 2632227825Stheraven 2633227825Stheraven// is_nothrow_move_assignable 2634227825Stheraven 2635227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_move_assignable 2636227825Stheraven : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, 2637227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2638227825Stheraven typename add_rvalue_reference<_Tp>::type> 2639227825Stheraven#else 2640227825Stheraven typename add_lvalue_reference<_Tp>::type> 2641227825Stheraven#endif 2642227825Stheraven {}; 2643227825Stheraven 2644227825Stheraven// is_nothrow_destructible 2645227825Stheraven 2646227825Stheraven#if __has_feature(cxx_noexcept) 2647227825Stheraven 2648227825Stheraventemplate <bool, class _Tp> struct __is_nothrow_destructible; 2649227825Stheraven 2650227825Stheraventemplate <class _Tp> 2651227825Stheravenstruct __is_nothrow_destructible<false, _Tp> 2652227825Stheraven : public false_type 2653227825Stheraven{ 2654227825Stheraven}; 2655227825Stheraven 2656227825Stheraventemplate <class _Tp> 2657227825Stheravenstruct __is_nothrow_destructible<true, _Tp> 2658227825Stheraven : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>().~_Tp()) > 2659227825Stheraven{ 2660227825Stheraven}; 2661227825Stheraven 2662227825Stheraventemplate <class _Tp> 2663227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_destructible 2664227825Stheraven : public __is_nothrow_destructible<is_destructible<_Tp>::value, _Tp> 2665227825Stheraven{ 2666227825Stheraven}; 2667227825Stheraven 2668227825Stheraventemplate <class _Tp, size_t _Ns> 2669227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_destructible<_Tp[_Ns]> 2670227825Stheraven : public is_nothrow_destructible<_Tp> 2671227825Stheraven{ 2672227825Stheraven}; 2673227825Stheraven 2674227825Stheraventemplate <class _Tp> 2675227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_destructible<_Tp&> 2676227825Stheraven : public true_type 2677227825Stheraven{ 2678227825Stheraven}; 2679227825Stheraven 2680227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2681227825Stheraven 2682227825Stheraventemplate <class _Tp> 2683227825Stheravenstruct _LIBCPP_VISIBLE is_nothrow_destructible<_Tp&&> 2684227825Stheraven : public true_type 2685227825Stheraven{ 2686227825Stheraven}; 2687227825Stheraven 2688227825Stheraven#endif 2689227825Stheraven 2690227825Stheraven#else 2691227825Stheraven 2692227825Stheraventemplate <class _Tp> struct __libcpp_nothrow_destructor 2693227825Stheraven : public integral_constant<bool, is_scalar<_Tp>::value || 2694227825Stheraven is_reference<_Tp>::value> {}; 2695227825Stheraven 2696227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_destructible 2697227825Stheraven : public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {}; 2698227825Stheraven 2699227825Stheraven#endif 2700227825Stheraven 2701227825Stheraven// is_pod 2702227825Stheraven 2703227825Stheraven#if __has_feature(is_pod) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2704227825Stheraven 2705227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_pod 2706227825Stheraven : public integral_constant<bool, __is_pod(_Tp)> {}; 2707227825Stheraven 2708227825Stheraven#else // _LIBCPP_HAS_TYPE_TRAITS 2709227825Stheraven 2710227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_pod 2711227825Stheraven : public integral_constant<bool, is_trivially_default_constructible<_Tp>::value && 2712227825Stheraven is_trivially_copy_constructible<_Tp>::value && 2713227825Stheraven is_trivially_copy_assignable<_Tp>::value && 2714227825Stheraven is_trivially_destructible<_Tp>::value> {}; 2715227825Stheraven 2716227825Stheraven#endif // _LIBCPP_HAS_TYPE_TRAITS 2717227825Stheraven 2718227825Stheraven// is_literal_type; 2719227825Stheraven 2720227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_literal_type 2721227825Stheraven#if __has_feature(is_literal) 2722227825Stheraven : public integral_constant<bool, __is_literal(_Tp)> 2723227825Stheraven#else 2724227825Stheraven : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value || 2725227825Stheraven is_reference<typename remove_all_extents<_Tp>::type>::value> 2726227825Stheraven#endif 2727227825Stheraven {}; 2728227825Stheraven 2729227825Stheraven// is_standard_layout; 2730227825Stheraven 2731227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_standard_layout 2732227825Stheraven#if __has_feature(is_standard_layout) 2733227825Stheraven : public integral_constant<bool, __is_standard_layout(_Tp)> 2734227825Stheraven#else 2735227825Stheraven : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> 2736227825Stheraven#endif 2737227825Stheraven {}; 2738227825Stheraven 2739227825Stheraven// is_trivially_copyable; 2740227825Stheraven 2741227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivially_copyable 2742227825Stheraven#if __has_feature(is_trivially_copyable) 2743227825Stheraven : public integral_constant<bool, __is_trivially_copyable(_Tp)> 2744227825Stheraven#else 2745227825Stheraven : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> 2746227825Stheraven#endif 2747227825Stheraven {}; 2748227825Stheraven 2749227825Stheraven// is_trivial; 2750227825Stheraven 2751227825Stheraventemplate <class _Tp> struct _LIBCPP_VISIBLE is_trivial 2752227825Stheraven#if __has_feature(is_trivial) 2753227825Stheraven : public integral_constant<bool, __is_trivial(_Tp)> 2754227825Stheraven#else 2755227825Stheraven : integral_constant<bool, is_trivially_copyable<_Tp>::value && 2756227825Stheraven is_trivially_default_constructible<_Tp>::value> 2757227825Stheraven#endif 2758227825Stheraven {}; 2759227825Stheraven 2760227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 2761227825Stheraven 2762227825Stheraven// Check for complete types 2763227825Stheraven 2764227825Stheraventemplate <class ..._T> struct __check_complete; 2765227825Stheraven 2766227825Stheraventemplate <> 2767227825Stheravenstruct __check_complete<> 2768227825Stheraven{ 2769227825Stheraven}; 2770227825Stheraven 2771227825Stheraventemplate <class _H, class _T0, class ..._T> 2772227825Stheravenstruct __check_complete<_H, _T0, _T...> 2773227825Stheraven : private __check_complete<_H>, 2774227825Stheraven private __check_complete<_T0, _T...> 2775227825Stheraven{ 2776227825Stheraven}; 2777227825Stheraven 2778227825Stheraventemplate <class _H> 2779227825Stheravenstruct __check_complete<_H, _H> 2780227825Stheraven : private __check_complete<_H> 2781227825Stheraven{ 2782227825Stheraven}; 2783227825Stheraven 2784227825Stheraventemplate <class _T> 2785227825Stheravenstruct __check_complete<_T> 2786227825Stheraven{ 2787227825Stheraven static_assert(sizeof(_T) > 0, "Type must be complete."); 2788227825Stheraven}; 2789227825Stheraven 2790227825Stheraventemplate <class _T> 2791227825Stheravenstruct __check_complete<_T&> 2792227825Stheraven : private __check_complete<_T> 2793227825Stheraven{ 2794227825Stheraven}; 2795227825Stheraven 2796227825Stheraventemplate <class _T> 2797227825Stheravenstruct __check_complete<_T&&> 2798227825Stheraven : private __check_complete<_T> 2799227825Stheraven{ 2800227825Stheraven}; 2801227825Stheraven 2802227825Stheraventemplate <class _R, class ..._Param> 2803227825Stheravenstruct __check_complete<_R (*)(_Param...)> 2804227825Stheraven : private __check_complete<_Param...> 2805227825Stheraven{ 2806227825Stheraven}; 2807227825Stheraven 2808227825Stheraventemplate <class _R, class ..._Param> 2809227825Stheravenstruct __check_complete<_R (_Param...)> 2810227825Stheraven : private __check_complete<_Param...> 2811227825Stheraven{ 2812227825Stheraven}; 2813227825Stheraven 2814227825Stheraventemplate <class _R, class _Class, class ..._Param> 2815227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...)> 2816227825Stheraven : private __check_complete<_Class, _Param...> 2817227825Stheraven{ 2818227825Stheraven}; 2819227825Stheraven 2820227825Stheraventemplate <class _R, class _Class, class ..._Param> 2821227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) const> 2822227825Stheraven : private __check_complete<_Class, _Param...> 2823227825Stheraven{ 2824227825Stheraven}; 2825227825Stheraven 2826227825Stheraventemplate <class _R, class _Class, class ..._Param> 2827227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) volatile> 2828227825Stheraven : private __check_complete<_Class, _Param...> 2829227825Stheraven{ 2830227825Stheraven}; 2831227825Stheraven 2832227825Stheraventemplate <class _R, class _Class, class ..._Param> 2833227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) const volatile> 2834227825Stheraven : private __check_complete<_Class, _Param...> 2835227825Stheraven{ 2836227825Stheraven}; 2837227825Stheraven 2838227825Stheraven#if __has_feature(cxx_reference_qualified_functions) 2839227825Stheraven 2840227825Stheraventemplate <class _R, class _Class, class ..._Param> 2841227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) &> 2842227825Stheraven : private __check_complete<_Class, _Param...> 2843227825Stheraven{ 2844227825Stheraven}; 2845227825Stheraven 2846227825Stheraventemplate <class _R, class _Class, class ..._Param> 2847227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) const&> 2848227825Stheraven : private __check_complete<_Class, _Param...> 2849227825Stheraven{ 2850227825Stheraven}; 2851227825Stheraven 2852227825Stheraventemplate <class _R, class _Class, class ..._Param> 2853227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) volatile&> 2854227825Stheraven : private __check_complete<_Class, _Param...> 2855227825Stheraven{ 2856227825Stheraven}; 2857227825Stheraven 2858227825Stheraventemplate <class _R, class _Class, class ..._Param> 2859227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) const volatile&> 2860227825Stheraven : private __check_complete<_Class, _Param...> 2861227825Stheraven{ 2862227825Stheraven}; 2863227825Stheraven 2864227825Stheraventemplate <class _R, class _Class, class ..._Param> 2865227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) &&> 2866227825Stheraven : private __check_complete<_Class, _Param...> 2867227825Stheraven{ 2868227825Stheraven}; 2869227825Stheraven 2870227825Stheraventemplate <class _R, class _Class, class ..._Param> 2871227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) const&&> 2872227825Stheraven : private __check_complete<_Class, _Param...> 2873227825Stheraven{ 2874227825Stheraven}; 2875227825Stheraven 2876227825Stheraventemplate <class _R, class _Class, class ..._Param> 2877227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) volatile&&> 2878227825Stheraven : private __check_complete<_Class, _Param...> 2879227825Stheraven{ 2880227825Stheraven}; 2881227825Stheraven 2882227825Stheraventemplate <class _R, class _Class, class ..._Param> 2883227825Stheravenstruct __check_complete<_R (_Class::*)(_Param...) const volatile&&> 2884227825Stheraven : private __check_complete<_Class, _Param...> 2885227825Stheraven{ 2886227825Stheraven}; 2887227825Stheraven 2888227825Stheraven#endif 2889227825Stheraven 2890227825Stheraventemplate <class _R, class _Class> 2891227825Stheravenstruct __check_complete<_R _Class::*> 2892227825Stheraven : private __check_complete<_Class> 2893227825Stheraven{ 2894227825Stheraven}; 2895227825Stheraven 2896227825Stheraven// __invoke forward declarations 2897227825Stheraven 2898227825Stheraven// fall back - none of the bullets 2899227825Stheraven 2900227825Stheraventemplate <class ..._Args> 2901227825Stheravenauto 2902227825Stheraven__invoke(__any, _Args&& ...__args) 2903227825Stheraven -> __nat; 2904227825Stheraven 2905227825Stheraven// bullets 1 and 2 2906227825Stheraven 2907227825Stheraventemplate <class _F, class _A0, class ..._Args> 2908227825Stheravenauto 2909227825Stheraven__invoke(_F&& __f, _A0&& __a0, _Args&& ...__args) 2910227825Stheraven -> decltype((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...)); 2911227825Stheraven 2912227825Stheraventemplate <class _F, class _A0, class ..._Args> 2913227825Stheravenauto 2914227825Stheraven__invoke(_F&& __f, _A0&& __a0, _Args&& ...__args) 2915227825Stheraven -> decltype(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...)); 2916227825Stheraven 2917227825Stheraven// bullets 3 and 4 2918227825Stheraven 2919227825Stheraventemplate <class _F, class _A0> 2920227825Stheravenauto 2921227825Stheraven__invoke(_F&& __f, _A0&& __a0) 2922227825Stheraven -> decltype(_VSTD::forward<_A0>(__a0).*__f); 2923227825Stheraven 2924227825Stheraventemplate <class _F, class _A0> 2925227825Stheravenauto 2926227825Stheraven__invoke(_F&& __f, _A0&& __a0) 2927227825Stheraven -> decltype((*_VSTD::forward<_A0>(__a0)).*__f); 2928227825Stheraven 2929227825Stheraven// bullet 5 2930227825Stheraven 2931227825Stheraventemplate <class _F, class ..._Args> 2932227825Stheravenauto 2933227825Stheraven__invoke(_F&& __f, _Args&& ...__args) 2934227825Stheraven -> decltype(_VSTD::forward<_F>(__f)(_VSTD::forward<_Args>(__args)...)); 2935227825Stheraven 2936227825Stheraven// __invokable 2937227825Stheraven 2938227825Stheraventemplate <class _F, class ..._Args> 2939227825Stheravenstruct __invokable_imp 2940227825Stheraven : private __check_complete<_F, _Args...> 2941227825Stheraven{ 2942227825Stheraven typedef decltype( 2943227825Stheraven __invoke(_VSTD::declval<_F>(), _VSTD::declval<_Args>()...) 2944227825Stheraven ) type; 2945227825Stheraven static const bool value = !is_same<type, __nat>::value; 2946227825Stheraven}; 2947227825Stheraven 2948227825Stheraventemplate <class _F, class ..._Args> 2949227825Stheravenstruct __invokable 2950227825Stheraven : public integral_constant<bool, 2951227825Stheraven __invokable_imp<_F, _Args...>::value> 2952227825Stheraven{ 2953227825Stheraven}; 2954227825Stheraven 2955227825Stheraven// __invoke_of 2956227825Stheraven 2957227825Stheraventemplate <bool _Invokable, class _F, class ..._Args> 2958227825Stheravenstruct __invoke_of_imp // false 2959227825Stheraven{ 2960227825Stheraven}; 2961227825Stheraven 2962227825Stheraventemplate <class _F, class ..._Args> 2963227825Stheravenstruct __invoke_of_imp<true, _F, _Args...> 2964227825Stheraven{ 2965227825Stheraven typedef typename __invokable_imp<_F, _Args...>::type type; 2966227825Stheraven}; 2967227825Stheraven 2968227825Stheraventemplate <class _F, class ..._Args> 2969227825Stheravenstruct __invoke_of 2970227825Stheraven : public __invoke_of_imp<__invokable<_F, _Args...>::value, _F, _Args...> 2971227825Stheraven{ 2972227825Stheraven}; 2973227825Stheraven 2974227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2975227825Stheraven 2976227825Stheraventemplate <class _Tp> 2977227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 2978227825Stheraven#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE 2979227825Stheraventypename enable_if 2980227825Stheraven< 2981227825Stheraven is_move_constructible<_Tp>::value && 2982227825Stheraven is_move_assignable<_Tp>::value 2983227825Stheraven>::type 2984227825Stheraven#else 2985227825Stheravenvoid 2986227825Stheraven#endif 2987227825Stheravenswap(_Tp& __x, _Tp& __y) _NOEXCEPT_(is_nothrow_move_constructible<_Tp>::value && 2988227825Stheraven is_nothrow_move_assignable<_Tp>::value) 2989227825Stheraven{ 2990227825Stheraven _Tp __t(_VSTD::move(__x)); 2991227825Stheraven __x = _VSTD::move(__y); 2992227825Stheraven __y = _VSTD::move(__t); 2993227825Stheraven} 2994227825Stheraven 2995227825Stheraventemplate <class _ForwardIterator1, class _ForwardIterator2> 2996227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 2997227825Stheravenvoid 2998227825Stheraveniter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b) 2999227825Stheraven // _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b))) 3000227825Stheraven _NOEXCEPT_(_NOEXCEPT_(swap(*_VSTD::declval<_ForwardIterator1>(), 3001227825Stheraven *_VSTD::declval<_ForwardIterator2>()))) 3002227825Stheraven{ 3003227825Stheraven swap(*__a, *__b); 3004227825Stheraven} 3005227825Stheraven 3006227825Stheraven// __swappable 3007227825Stheraven 3008227825Stheravennamespace __detail 3009227825Stheraven{ 3010227825Stheraven 3011227825Stheravenusing _VSTD::swap; 3012227825Stheraven__nat swap(__any, __any); 3013227825Stheraven 3014227825Stheraventemplate <class _Tp> 3015227825Stheravenstruct __swappable 3016227825Stheraven{ 3017227825Stheraven typedef decltype(swap(_VSTD::declval<_Tp&>(), _VSTD::declval<_Tp&>())) type; 3018227825Stheraven static const bool value = !is_same<type, __nat>::value; 3019227825Stheraven}; 3020227825Stheraven 3021227825Stheraven} // __detail 3022227825Stheraven 3023227825Stheraventemplate <class _Tp> 3024227825Stheravenstruct __is_swappable 3025227825Stheraven : public integral_constant<bool, __detail::__swappable<_Tp>::value> 3026227825Stheraven{ 3027227825Stheraven}; 3028227825Stheraven 3029227825Stheraven#if __has_feature(cxx_noexcept) 3030227825Stheraven 3031227825Stheraventemplate <bool, class _Tp> 3032227825Stheravenstruct __is_nothrow_swappable_imp 3033227825Stheraven : public integral_constant<bool, noexcept(swap(_VSTD::declval<_Tp&>(), 3034227825Stheraven _VSTD::declval<_Tp&>()))> 3035227825Stheraven{ 3036227825Stheraven}; 3037227825Stheraven 3038227825Stheraventemplate <class _Tp> 3039227825Stheravenstruct __is_nothrow_swappable_imp<false, _Tp> 3040227825Stheraven : public false_type 3041227825Stheraven{ 3042227825Stheraven}; 3043227825Stheraven 3044227825Stheraventemplate <class _Tp> 3045227825Stheravenstruct __is_nothrow_swappable 3046227825Stheraven : public __is_nothrow_swappable_imp<__is_swappable<_Tp>::value, _Tp> 3047227825Stheraven{ 3048227825Stheraven}; 3049227825Stheraven 3050227825Stheraven#else // __has_feature(cxx_noexcept) 3051227825Stheraven 3052227825Stheraventemplate <class _Tp> 3053227825Stheravenstruct __is_nothrow_swappable 3054227825Stheraven : public false_type 3055227825Stheraven{ 3056227825Stheraven}; 3057227825Stheraven 3058227825Stheraven#endif // __has_feature(cxx_noexcept) 3059227825Stheraven 3060227825Stheraven#ifdef _LIBCXX_UNDERLYING_TYPE 3061227825Stheraven 3062227825Stheraventemplate <class _Tp> 3063227825Stheravenstruct underlying_type 3064227825Stheraven{ 3065227825Stheraven typedef _LIBCXX_UNDERLYING_TYPE(_Tp) type; 3066227825Stheraven}; 3067227825Stheraven 3068227825Stheraven#else // _LIBCXX_UNDERLYING_TYPE 3069227825Stheraven 3070227825Stheraventemplate <class _Tp, bool _Support = false> 3071227825Stheravenstruct underlying_type 3072227825Stheraven{ 3073227825Stheraven static_assert(_Support, "The underyling_type trait requires compiler " 3074227825Stheraven "support. Either no such support exists or " 3075227825Stheraven "libc++ does not know how to use it."); 3076227825Stheraven}; 3077227825Stheraven 3078227825Stheraven#endif // _LIBCXX_UNDERLYING_TYPE 3079227825Stheraven 3080227825Stheraven_LIBCPP_END_NAMESPACE_STD 3081227825Stheraven 3082227825Stheraven#endif // _LIBCPP_TYPE_TRAITS 3083