type_traits revision 249998
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; 132249998Sdim template <size_t Len, class... Types> struct aligned_union; 133227825Stheraven 134227825Stheraven template <class T> struct decay; 135227825Stheraven template <class... T> struct common_type; 136227825Stheraven template <class T> struct underlying_type; 137227825Stheraven template <class> class result_of; // undefined 138227825Stheraven template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>; 139227825Stheraven 140227825Stheraven} // std 141227825Stheraven 142227825Stheraven*/ 143227825Stheraven#include <__config> 144227825Stheraven#include <cstddef> 145227825Stheraven 146227825Stheraven#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 147227825Stheraven#pragma GCC system_header 148227825Stheraven#endif 149227825Stheraven 150227825Stheraven_LIBCPP_BEGIN_NAMESPACE_STD 151227825Stheraven 152232950Stheraventemplate <bool _Bp, class _If, class _Then> 153249998Sdim struct _LIBCPP_TYPE_VIS conditional {typedef _If type;}; 154227825Stheraventemplate <class _If, class _Then> 155249998Sdim struct _LIBCPP_TYPE_VIS conditional<false, _If, _Then> {typedef _Then type;}; 156227825Stheraven 157249998Sdimtemplate <bool, class _Tp = void> struct _LIBCPP_TYPE_VIS enable_if {}; 158249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS enable_if<true, _Tp> {typedef _Tp type;}; 159227825Stheraven 160242945Stheravenstruct __two {char __lx[2];}; 161227825Stheraven 162227825Stheraven// helper class: 163227825Stheraven 164227825Stheraventemplate <class _Tp, _Tp __v> 165249998Sdimstruct _LIBCPP_TYPE_VIS integral_constant 166227825Stheraven{ 167234976Stheraven static _LIBCPP_CONSTEXPR const _Tp value = __v; 168227825Stheraven typedef _Tp value_type; 169227825Stheraven typedef integral_constant type; 170227825Stheraven _LIBCPP_INLINE_VISIBILITY 171234976Stheraven _LIBCPP_CONSTEXPR operator value_type() const {return value;} 172227825Stheraven}; 173227825Stheraven 174227825Stheraventemplate <class _Tp, _Tp __v> 175234976Stheraven_LIBCPP_CONSTEXPR const _Tp integral_constant<_Tp, __v>::value; 176227825Stheraven 177227825Stheraventypedef integral_constant<bool, true> true_type; 178227825Stheraventypedef integral_constant<bool, false> false_type; 179227825Stheraven 180227825Stheraven// is_const 181227825Stheraven 182249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_const : public false_type {}; 183249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_const<_Tp const> : public true_type {}; 184227825Stheraven 185227825Stheraven// is_volatile 186227825Stheraven 187249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_volatile : public false_type {}; 188249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_volatile<_Tp volatile> : public true_type {}; 189227825Stheraven 190227825Stheraven// remove_const 191227825Stheraven 192249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_const {typedef _Tp type;}; 193249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_const<const _Tp> {typedef _Tp type;}; 194227825Stheraven 195227825Stheraven// remove_volatile 196227825Stheraven 197249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_volatile {typedef _Tp type;}; 198249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_volatile<volatile _Tp> {typedef _Tp type;}; 199227825Stheraven 200227825Stheraven// remove_cv 201227825Stheraven 202249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_cv 203227825Stheraven{typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;}; 204227825Stheraven 205227825Stheraven// is_void 206227825Stheraven 207227825Stheraventemplate <class _Tp> struct __is_void : public false_type {}; 208227825Stheraventemplate <> struct __is_void<void> : public true_type {}; 209227825Stheraven 210249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_void 211227825Stheraven : public __is_void<typename remove_cv<_Tp>::type> {}; 212227825Stheraven 213227825Stheraven// __is_nullptr_t 214227825Stheraven 215227825Stheraventemplate <class _Tp> struct ____is_nullptr_t : public false_type {}; 216227825Stheraventemplate <> struct ____is_nullptr_t<nullptr_t> : public true_type {}; 217227825Stheraven 218249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS __is_nullptr_t 219227825Stheraven : public ____is_nullptr_t<typename remove_cv<_Tp>::type> {}; 220227825Stheraven 221227825Stheraven// is_integral 222227825Stheraven 223227825Stheraventemplate <class _Tp> struct __is_integral : public false_type {}; 224227825Stheraventemplate <> struct __is_integral<bool> : public true_type {}; 225227825Stheraventemplate <> struct __is_integral<char> : public true_type {}; 226227825Stheraventemplate <> struct __is_integral<signed char> : public true_type {}; 227227825Stheraventemplate <> struct __is_integral<unsigned char> : public true_type {}; 228227825Stheraventemplate <> struct __is_integral<wchar_t> : public true_type {}; 229227825Stheraven#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 230227825Stheraventemplate <> struct __is_integral<char16_t> : public true_type {}; 231227825Stheraventemplate <> struct __is_integral<char32_t> : public true_type {}; 232227825Stheraven#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 233227825Stheraventemplate <> struct __is_integral<short> : public true_type {}; 234227825Stheraventemplate <> struct __is_integral<unsigned short> : public true_type {}; 235227825Stheraventemplate <> struct __is_integral<int> : public true_type {}; 236227825Stheraventemplate <> struct __is_integral<unsigned int> : public true_type {}; 237227825Stheraventemplate <> struct __is_integral<long> : public true_type {}; 238227825Stheraventemplate <> struct __is_integral<unsigned long> : public true_type {}; 239227825Stheraventemplate <> struct __is_integral<long long> : public true_type {}; 240227825Stheraventemplate <> struct __is_integral<unsigned long long> : public true_type {}; 241227825Stheraven 242249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_integral 243227825Stheraven : public __is_integral<typename remove_cv<_Tp>::type> {}; 244227825Stheraven 245227825Stheraven// is_floating_point 246227825Stheraven 247227825Stheraventemplate <class _Tp> struct __is_floating_point : public false_type {}; 248227825Stheraventemplate <> struct __is_floating_point<float> : public true_type {}; 249227825Stheraventemplate <> struct __is_floating_point<double> : public true_type {}; 250227825Stheraventemplate <> struct __is_floating_point<long double> : public true_type {}; 251227825Stheraven 252249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_floating_point 253227825Stheraven : public __is_floating_point<typename remove_cv<_Tp>::type> {}; 254227825Stheraven 255227825Stheraven// is_array 256227825Stheraven 257249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_array 258227825Stheraven : public false_type {}; 259249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_array<_Tp[]> 260227825Stheraven : public true_type {}; 261249998Sdimtemplate <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS is_array<_Tp[_Np]> 262227825Stheraven : public true_type {}; 263227825Stheraven 264227825Stheraven// is_pointer 265227825Stheraven 266227825Stheraventemplate <class _Tp> struct __is_pointer : public false_type {}; 267227825Stheraventemplate <class _Tp> struct __is_pointer<_Tp*> : public true_type {}; 268227825Stheraven 269249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_pointer 270227825Stheraven : public __is_pointer<typename remove_cv<_Tp>::type> {}; 271227825Stheraven 272227825Stheraven// is_reference 273227825Stheraven 274249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_lvalue_reference : public false_type {}; 275249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_lvalue_reference<_Tp&> : public true_type {}; 276227825Stheraven 277249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_rvalue_reference : public false_type {}; 278227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 279249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_rvalue_reference<_Tp&&> : public true_type {}; 280227825Stheraven#endif 281227825Stheraven 282249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_reference : public false_type {}; 283249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_reference<_Tp&> : public true_type {}; 284227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 285249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_reference<_Tp&&> : public true_type {}; 286227825Stheraven#endif 287227825Stheraven 288227825Stheraven#if defined(__clang__) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 289227825Stheraven#define _LIBCPP_HAS_TYPE_TRAITS 290227825Stheraven#endif 291227825Stheraven 292227825Stheraven// is_union 293227825Stheraven 294227825Stheraven#if __has_feature(is_union) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 295227825Stheraven 296249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_union 297227825Stheraven : public integral_constant<bool, __is_union(_Tp)> {}; 298227825Stheraven 299227825Stheraven#else 300227825Stheraven 301227825Stheraventemplate <class _Tp> struct __libcpp_union : public false_type {}; 302249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_union 303227825Stheraven : public __libcpp_union<typename remove_cv<_Tp>::type> {}; 304227825Stheraven 305227825Stheraven#endif 306227825Stheraven 307227825Stheraven// is_class 308227825Stheraven 309227825Stheraven#if __has_feature(is_class) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 310227825Stheraven 311249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_class 312227825Stheraven : public integral_constant<bool, __is_class(_Tp)> {}; 313227825Stheraven 314227825Stheraven#else 315227825Stheraven 316227825Stheravennamespace __is_class_imp 317227825Stheraven{ 318227825Stheraventemplate <class _Tp> char __test(int _Tp::*); 319227825Stheraventemplate <class _Tp> __two __test(...); 320227825Stheraven} 321227825Stheraven 322249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_class 323227825Stheraven : public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {}; 324227825Stheraven 325227825Stheraven#endif 326227825Stheraven 327227825Stheraven// is_same 328227825Stheraven 329249998Sdimtemplate <class _Tp, class _Up> struct _LIBCPP_TYPE_VIS is_same : public false_type {}; 330249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_same<_Tp, _Tp> : public true_type {}; 331227825Stheraven 332227825Stheraven// is_function 333227825Stheraven 334227825Stheravennamespace __is_function_imp 335227825Stheraven{ 336227825Stheraventemplate <class _Tp> char __test(_Tp*); 337227825Stheraventemplate <class _Tp> __two __test(...); 338227825Stheraventemplate <class _Tp> _Tp& __source(); 339227825Stheraven} 340227825Stheraven 341227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value || 342227825Stheraven is_union<_Tp>::value || 343227825Stheraven is_void<_Tp>::value || 344227825Stheraven is_reference<_Tp>::value || 345227825Stheraven is_same<_Tp, nullptr_t>::value > 346227825Stheravenstruct __is_function 347227825Stheraven : public integral_constant<bool, sizeof(__is_function_imp::__test<_Tp>(__is_function_imp::__source<_Tp>())) == 1> 348227825Stheraven {}; 349227825Stheraventemplate <class _Tp> struct __is_function<_Tp, true> : public false_type {}; 350227825Stheraven 351249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_function 352227825Stheraven : public __is_function<_Tp> {}; 353227825Stheraven 354227825Stheraven// is_member_function_pointer 355227825Stheraven 356227825Stheraventemplate <class _Tp> struct __is_member_function_pointer : public false_type {}; 357227825Stheraventemplate <class _Tp, class _Up> struct __is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {}; 358227825Stheraven 359249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_member_function_pointer 360227825Stheraven : public __is_member_function_pointer<typename remove_cv<_Tp>::type> {}; 361227825Stheraven 362227825Stheraven// is_member_pointer 363227825Stheraven 364227825Stheraventemplate <class _Tp> struct __is_member_pointer : public false_type {}; 365227825Stheraventemplate <class _Tp, class _Up> struct __is_member_pointer<_Tp _Up::*> : public true_type {}; 366227825Stheraven 367249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_member_pointer 368227825Stheraven : public __is_member_pointer<typename remove_cv<_Tp>::type> {}; 369227825Stheraven 370227825Stheraven// is_member_object_pointer 371227825Stheraven 372249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_member_object_pointer 373227825Stheraven : public integral_constant<bool, is_member_pointer<_Tp>::value && 374227825Stheraven !is_member_function_pointer<_Tp>::value> {}; 375227825Stheraven 376227825Stheraven// is_enum 377227825Stheraven 378227825Stheraven#if __has_feature(is_enum) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 379227825Stheraven 380249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_enum 381227825Stheraven : public integral_constant<bool, __is_enum(_Tp)> {}; 382227825Stheraven 383227825Stheraven#else 384227825Stheraven 385249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_enum 386227825Stheraven : public integral_constant<bool, !is_void<_Tp>::value && 387227825Stheraven !is_integral<_Tp>::value && 388227825Stheraven !is_floating_point<_Tp>::value && 389227825Stheraven !is_array<_Tp>::value && 390227825Stheraven !is_pointer<_Tp>::value && 391227825Stheraven !is_reference<_Tp>::value && 392227825Stheraven !is_member_pointer<_Tp>::value && 393227825Stheraven !is_union<_Tp>::value && 394227825Stheraven !is_class<_Tp>::value && 395227825Stheraven !is_function<_Tp>::value > {}; 396227825Stheraven 397227825Stheraven#endif 398227825Stheraven 399227825Stheraven// is_arithmetic 400227825Stheraven 401249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_arithmetic 402227825Stheraven : public integral_constant<bool, is_integral<_Tp>::value || 403227825Stheraven is_floating_point<_Tp>::value> {}; 404227825Stheraven 405227825Stheraven// is_fundamental 406227825Stheraven 407249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_fundamental 408227825Stheraven : public integral_constant<bool, is_void<_Tp>::value || 409227825Stheraven __is_nullptr_t<_Tp>::value || 410227825Stheraven is_arithmetic<_Tp>::value> {}; 411227825Stheraven 412227825Stheraven// is_scalar 413227825Stheraven 414249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_scalar 415227825Stheraven : public integral_constant<bool, is_arithmetic<_Tp>::value || 416227825Stheraven is_member_pointer<_Tp>::value || 417227825Stheraven is_pointer<_Tp>::value || 418227825Stheraven __is_nullptr_t<_Tp>::value || 419227825Stheraven is_enum<_Tp>::value > {}; 420227825Stheraven 421249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS is_scalar<nullptr_t> : public true_type {}; 422227825Stheraven 423227825Stheraven// is_object 424227825Stheraven 425249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_object 426227825Stheraven : public integral_constant<bool, is_scalar<_Tp>::value || 427227825Stheraven is_array<_Tp>::value || 428227825Stheraven is_union<_Tp>::value || 429227825Stheraven is_class<_Tp>::value > {}; 430227825Stheraven 431227825Stheraven// is_compound 432227825Stheraven 433249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_compound 434227825Stheraven : public integral_constant<bool, !is_fundamental<_Tp>::value> {}; 435227825Stheraven 436227825Stheraven// add_const 437227825Stheraven 438227825Stheraventemplate <class _Tp, bool = is_reference<_Tp>::value || 439227825Stheraven is_function<_Tp>::value || 440227825Stheraven is_const<_Tp>::value > 441227825Stheravenstruct __add_const {typedef _Tp type;}; 442227825Stheraven 443227825Stheraventemplate <class _Tp> 444227825Stheravenstruct __add_const<_Tp, false> {typedef const _Tp type;}; 445227825Stheraven 446249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_const 447227825Stheraven {typedef typename __add_const<_Tp>::type type;}; 448227825Stheraven 449227825Stheraven// add_volatile 450227825Stheraven 451227825Stheraventemplate <class _Tp, bool = is_reference<_Tp>::value || 452227825Stheraven is_function<_Tp>::value || 453227825Stheraven is_volatile<_Tp>::value > 454227825Stheravenstruct __add_volatile {typedef _Tp type;}; 455227825Stheraven 456227825Stheraventemplate <class _Tp> 457227825Stheravenstruct __add_volatile<_Tp, false> {typedef volatile _Tp type;}; 458227825Stheraven 459249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_volatile 460227825Stheraven {typedef typename __add_volatile<_Tp>::type type;}; 461227825Stheraven 462227825Stheraven// add_cv 463227825Stheraven 464249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_cv 465227825Stheraven {typedef typename add_const<typename add_volatile<_Tp>::type>::type type;}; 466227825Stheraven 467227825Stheraven// remove_reference 468227825Stheraven 469249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_reference {typedef _Tp type;}; 470249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_reference<_Tp&> {typedef _Tp type;}; 471227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 472249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_reference<_Tp&&> {typedef _Tp type;}; 473227825Stheraven#endif 474227825Stheraven 475227825Stheraven// add_lvalue_reference 476227825Stheraven 477249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_lvalue_reference {typedef _Tp& type;}; 478249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_lvalue_reference<_Tp&> {typedef _Tp& type;}; // for older compiler 479249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_lvalue_reference<void> {typedef void type;}; 480249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_lvalue_reference<const void> {typedef const void type;}; 481249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_lvalue_reference<volatile void> {typedef volatile void type;}; 482249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_lvalue_reference<const volatile void> {typedef const volatile void type;}; 483227825Stheraven 484227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 485227825Stheraven 486249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_rvalue_reference {typedef _Tp&& type;}; 487249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_rvalue_reference<void> {typedef void type;}; 488249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_rvalue_reference<const void> {typedef const void type;}; 489249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_rvalue_reference<volatile void> {typedef volatile void type;}; 490249998Sdimtemplate <> struct _LIBCPP_TYPE_VIS add_rvalue_reference<const volatile void> {typedef const volatile void type;}; 491227825Stheraven 492227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 493227825Stheraven 494227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 495227825Stheraven 496227825Stheraventemplate <class _Tp> 497227825Stheraventypename add_rvalue_reference<_Tp>::type 498227825Stheravendeclval() _NOEXCEPT; 499227825Stheraven 500227825Stheraven#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES 501227825Stheraven 502227825Stheraventemplate <class _Tp> 503227825Stheraventypename add_lvalue_reference<_Tp>::type 504227825Stheravendeclval(); 505227825Stheraven 506227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 507227825Stheraven 508227825Stheravenstruct __any 509227825Stheraven{ 510227825Stheraven __any(...); 511227825Stheraven}; 512227825Stheraven 513227825Stheraven// remove_pointer 514227825Stheraven 515249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_pointer {typedef _Tp type;}; 516249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_pointer<_Tp*> {typedef _Tp type;}; 517249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_pointer<_Tp* const> {typedef _Tp type;}; 518249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_pointer<_Tp* volatile> {typedef _Tp type;}; 519249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_pointer<_Tp* const volatile> {typedef _Tp type;}; 520227825Stheraven 521227825Stheraven// add_pointer 522227825Stheraven 523249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS add_pointer 524227825Stheraven {typedef typename remove_reference<_Tp>::type* type;}; 525227825Stheraven 526227825Stheraven// is_signed 527227825Stheraven 528227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value> 529227825Stheravenstruct ___is_signed : public integral_constant<bool, _Tp(-1) < _Tp(0)> {}; 530227825Stheraven 531227825Stheraventemplate <class _Tp> 532227825Stheravenstruct ___is_signed<_Tp, false> : public true_type {}; // floating point 533227825Stheraven 534227825Stheraventemplate <class _Tp, bool = is_arithmetic<_Tp>::value> 535227825Stheravenstruct __is_signed : public ___is_signed<_Tp> {}; 536227825Stheraven 537227825Stheraventemplate <class _Tp> struct __is_signed<_Tp, false> : public false_type {}; 538227825Stheraven 539249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_signed : public __is_signed<_Tp> {}; 540227825Stheraven 541227825Stheraven// is_unsigned 542227825Stheraven 543227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value> 544227825Stheravenstruct ___is_unsigned : public integral_constant<bool, _Tp(0) < _Tp(-1)> {}; 545227825Stheraven 546227825Stheraventemplate <class _Tp> 547227825Stheravenstruct ___is_unsigned<_Tp, false> : public false_type {}; // floating point 548227825Stheraven 549227825Stheraventemplate <class _Tp, bool = is_arithmetic<_Tp>::value> 550227825Stheravenstruct __is_unsigned : public ___is_unsigned<_Tp> {}; 551227825Stheraven 552227825Stheraventemplate <class _Tp> struct __is_unsigned<_Tp, false> : public false_type {}; 553227825Stheraven 554249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_unsigned : public __is_unsigned<_Tp> {}; 555227825Stheraven 556227825Stheraven// rank 557227825Stheraven 558249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS rank 559227825Stheraven : public integral_constant<size_t, 0> {}; 560249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS rank<_Tp[]> 561227825Stheraven : public integral_constant<size_t, rank<_Tp>::value + 1> {}; 562249998Sdimtemplate <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS rank<_Tp[_Np]> 563227825Stheraven : public integral_constant<size_t, rank<_Tp>::value + 1> {}; 564227825Stheraven 565227825Stheraven// extent 566227825Stheraven 567249998Sdimtemplate <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TYPE_VIS extent 568227825Stheraven : public integral_constant<size_t, 0> {}; 569249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS extent<_Tp[], 0> 570227825Stheraven : public integral_constant<size_t, 0> {}; 571249998Sdimtemplate <class _Tp, unsigned _Ip> struct _LIBCPP_TYPE_VIS extent<_Tp[], _Ip> 572227825Stheraven : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; 573249998Sdimtemplate <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS extent<_Tp[_Np], 0> 574227825Stheraven : public integral_constant<size_t, _Np> {}; 575249998Sdimtemplate <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TYPE_VIS extent<_Tp[_Np], _Ip> 576227825Stheraven : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; 577227825Stheraven 578227825Stheraven// remove_extent 579227825Stheraven 580249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_extent 581227825Stheraven {typedef _Tp type;}; 582249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_extent<_Tp[]> 583227825Stheraven {typedef _Tp type;}; 584249998Sdimtemplate <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS remove_extent<_Tp[_Np]> 585227825Stheraven {typedef _Tp type;}; 586227825Stheraven 587227825Stheraven// remove_all_extents 588227825Stheraven 589249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_all_extents 590227825Stheraven {typedef _Tp type;}; 591249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS remove_all_extents<_Tp[]> 592227825Stheraven {typedef typename remove_all_extents<_Tp>::type type;}; 593249998Sdimtemplate <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS remove_all_extents<_Tp[_Np]> 594227825Stheraven {typedef typename remove_all_extents<_Tp>::type type;}; 595227825Stheraven 596227825Stheraven// is_abstract 597227825Stheraven 598227825Stheravennamespace __is_abstract_imp 599227825Stheraven{ 600227825Stheraventemplate <class _Tp> char __test(_Tp (*)[1]); 601227825Stheraventemplate <class _Tp> __two __test(...); 602227825Stheraven} 603227825Stheraven 604227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value> 605227825Stheravenstruct __libcpp_abstract : public integral_constant<bool, sizeof(__is_abstract_imp::__test<_Tp>(0)) != 1> {}; 606227825Stheraven 607227825Stheraventemplate <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {}; 608227825Stheraven 609249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_abstract : public __libcpp_abstract<_Tp> {}; 610227825Stheraven 611241903Sdim// is_base_of 612241903Sdim 613241903Sdim#ifdef _LIBCP_HAS_IS_BASE_OF 614241903Sdim 615241903Sdimtemplate <class _Bp, class _Dp> 616249998Sdimstruct _LIBCPP_TYPE_VIS is_base_of 617241903Sdim : public integral_constant<bool, __is_base_of(_Bp, _Dp)> {}; 618241903Sdim 619241903Sdim#else // __has_feature(is_base_of) 620241903Sdim 621246487Stheravennamespace __is_base_of_imp 622246487Stheraven{ 623246487Stheraventemplate <class _Tp> 624246487Stheravenstruct _Dst 625246487Stheraven{ 626246487Stheraven _Dst(const volatile _Tp &); 627246487Stheraven}; 628246487Stheraventemplate <class _Tp> 629246487Stheravenstruct _Src 630246487Stheraven{ 631246487Stheraven operator const volatile _Tp &(); 632246487Stheraven template <class _Up> operator const _Dst<_Up> &(); 633246487Stheraven}; 634246487Stheraventemplate <size_t> struct __one { typedef char type; }; 635246487Stheraventemplate <class _Bp, class _Dp> typename __one<sizeof(_Dst<_Bp>(declval<_Src<_Dp> >()))>::type __test(int); 636246487Stheraventemplate <class _Bp, class _Dp> __two __test(...); 637246487Stheraven} 638241903Sdim 639246487Stheraventemplate <class _Bp, class _Dp> 640249998Sdimstruct _LIBCPP_TYPE_VIS is_base_of 641246487Stheraven : public integral_constant<bool, is_class<_Bp>::value && 642246487Stheraven sizeof(__is_base_of_imp::__test<_Bp, _Dp>(0)) == 2> {}; 643246487Stheraven 644241903Sdim#endif // __has_feature(is_base_of) 645241903Sdim 646227825Stheraven// is_convertible 647227825Stheraven 648227825Stheraven#if __has_feature(is_convertible_to) 649227825Stheraven 650249998Sdimtemplate <class _T1, class _T2> struct _LIBCPP_TYPE_VIS is_convertible 651241903Sdim : public integral_constant<bool, __is_convertible_to(_T1, _T2) && 652241903Sdim !is_abstract<_T2>::value> {}; 653227825Stheraven 654227825Stheraven#else // __has_feature(is_convertible_to) 655227825Stheraven 656227825Stheravennamespace __is_convertible_imp 657227825Stheraven{ 658227825Stheraventemplate <class _Tp> char __test(_Tp); 659227825Stheraventemplate <class _Tp> __two __test(...); 660227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 661227825Stheraventemplate <class _Tp> _Tp&& __source(); 662227825Stheraven#else 663227825Stheraventemplate <class _Tp> typename remove_reference<_Tp>::type& __source(); 664227825Stheraven#endif 665227825Stheraven 666227825Stheraventemplate <class _Tp, bool _IsArray = is_array<_Tp>::value, 667227825Stheraven bool _IsFunction = is_function<_Tp>::value, 668227825Stheraven bool _IsVoid = is_void<_Tp>::value> 669227825Stheraven struct __is_array_function_or_void {enum {value = 0};}; 670227825Stheraventemplate <class _Tp> struct __is_array_function_or_void<_Tp, true, false, false> {enum {value = 1};}; 671227825Stheraventemplate <class _Tp> struct __is_array_function_or_void<_Tp, false, true, false> {enum {value = 2};}; 672227825Stheraventemplate <class _Tp> struct __is_array_function_or_void<_Tp, false, false, true> {enum {value = 3};}; 673227825Stheraven} 674227825Stheraven 675227825Stheraventemplate <class _Tp, 676227825Stheraven unsigned = __is_convertible_imp::__is_array_function_or_void<typename remove_reference<_Tp>::type>::value> 677227825Stheravenstruct __is_convertible_check 678227825Stheraven{ 679227825Stheraven static const size_t __v = 0; 680227825Stheraven}; 681227825Stheraven 682227825Stheraventemplate <class _Tp> 683227825Stheravenstruct __is_convertible_check<_Tp, 0> 684227825Stheraven{ 685227825Stheraven static const size_t __v = sizeof(_Tp); 686227825Stheraven}; 687227825Stheraven 688227825Stheraventemplate <class _T1, class _T2, 689227825Stheraven unsigned _T1_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T1>::value, 690227825Stheraven unsigned _T2_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T2>::value> 691227825Stheravenstruct __is_convertible 692227825Stheraven : public integral_constant<bool, 693241903Sdim#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 694227825Stheraven sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1 695241903Sdim#else 696241903Sdim sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1 697241903Sdim && !(!is_function<_T1>::value && !is_reference<_T1>::value && is_reference<_T2>::value 698241903Sdim && (!is_const<typename remove_reference<_T2>::type>::value 699241903Sdim || is_volatile<typename remove_reference<_T2>::type>::value) 700241903Sdim && (is_same<typename remove_cv<_T1>::type, 701241903Sdim typename remove_cv<typename remove_reference<_T2>::type>::type>::value 702241903Sdim || is_base_of<typename remove_reference<_T2>::type, _T1>::value)) 703241903Sdim#endif 704227825Stheraven > 705227825Stheraven{}; 706227825Stheraven 707227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 0> : false_type {}; 708227825Stheraven 709227825Stheraventemplate <class _T1> struct __is_convertible<_T1, const _T1&, 1, 0> : true_type {}; 710227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 711227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1&&, 1, 0> : true_type {}; 712227825Stheraventemplate <class _T1> struct __is_convertible<_T1, const _T1&&, 1, 0> : true_type {}; 713227825Stheraventemplate <class _T1> struct __is_convertible<_T1, volatile _T1&&, 1, 0> : true_type {}; 714227825Stheraventemplate <class _T1> struct __is_convertible<_T1, const volatile _T1&&, 1, 0> : true_type {}; 715227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 716227825Stheraven 717227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2*, 1, 0> 718227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*>::value> {}; 719227825Stheraven 720227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2* const, 1, 0> 721227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const>::value> {}; 722227825Stheraven 723227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2* volatile, 1, 0> 724227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*volatile>::value> {}; 725227825Stheraven 726227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2* const volatile, 1, 0> 727227825Stheraven : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const volatile>::value> {}; 728227825Stheraven 729227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 0> : public false_type {}; 730227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 731227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1&&, 2, 0> : public true_type {}; 732227825Stheraven#endif 733241903Sdimtemplate <class _T1> struct __is_convertible<_T1, _T1&, 2, 0> : public true_type {}; 734227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*, 2, 0> : public true_type {}; 735227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*const, 2, 0> : public true_type {}; 736227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*volatile, 2, 0> : public true_type {}; 737227825Stheraventemplate <class _T1> struct __is_convertible<_T1, _T1*const volatile, 2, 0> : public true_type {}; 738227825Stheraven 739227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 0> : public false_type {}; 740227825Stheraven 741227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 1> : public false_type {}; 742227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 1> : public false_type {}; 743227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 1> : public false_type {}; 744227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 1> : public false_type {}; 745227825Stheraven 746227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 2> : public false_type {}; 747227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 2> : public false_type {}; 748227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 2> : public false_type {}; 749227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 2> : public false_type {}; 750227825Stheraven 751227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 3> : public false_type {}; 752227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public false_type {}; 753227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {}; 754227825Stheraventemplate <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {}; 755227825Stheraven 756249998Sdimtemplate <class _T1, class _T2> struct _LIBCPP_TYPE_VIS is_convertible 757227825Stheraven : public __is_convertible<_T1, _T2> 758227825Stheraven{ 759227825Stheraven static const size_t __complete_check1 = __is_convertible_check<_T1>::__v; 760227825Stheraven static const size_t __complete_check2 = __is_convertible_check<_T2>::__v; 761227825Stheraven}; 762227825Stheraven 763227825Stheraven#endif // __has_feature(is_convertible_to) 764227825Stheraven 765227825Stheraven// is_empty 766227825Stheraven 767232950Stheraven#if __has_feature(is_empty) 768232950Stheraven 769227825Stheraventemplate <class _Tp> 770249998Sdimstruct _LIBCPP_TYPE_VIS is_empty 771232950Stheraven : public integral_constant<bool, __is_empty(_Tp)> {}; 772232950Stheraven 773232950Stheraven#else // __has_feature(is_empty) 774232950Stheraven 775232950Stheraventemplate <class _Tp> 776227825Stheravenstruct __is_empty1 777227825Stheraven : public _Tp 778227825Stheraven{ 779242945Stheraven double __lx; 780227825Stheraven}; 781227825Stheraven 782227825Stheravenstruct __is_empty2 783227825Stheraven{ 784242945Stheraven double __lx; 785227825Stheraven}; 786227825Stheraven 787227825Stheraventemplate <class _Tp, bool = is_class<_Tp>::value> 788227825Stheravenstruct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>) == sizeof(__is_empty2)> {}; 789227825Stheraven 790227825Stheraventemplate <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {}; 791227825Stheraven 792249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_empty : public __libcpp_empty<_Tp> {}; 793227825Stheraven 794232950Stheraven#endif // __has_feature(is_empty) 795232950Stheraven 796227825Stheraven// is_polymorphic 797227825Stheraven 798232950Stheraven#if __has_feature(is_polymorphic) 799232950Stheraven 800232950Stheraventemplate <class _Tp> 801249998Sdimstruct _LIBCPP_TYPE_VIS is_polymorphic 802232950Stheraven : public integral_constant<bool, __is_polymorphic(_Tp)> {}; 803232950Stheraven 804232950Stheraven#else 805232950Stheraven 806249998Sdimtemplate<typename _Tp> char &__is_polymorphic_impl( 807249998Sdim typename enable_if<sizeof((_Tp*)dynamic_cast<const volatile void*>(declval<_Tp*>())) != 0, 808249998Sdim int>::type); 809249998Sdimtemplate<typename _Tp> __two &__is_polymorphic_impl(...); 810227825Stheraven 811249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_polymorphic 812249998Sdim : public integral_constant<bool, sizeof(__is_polymorphic_impl<_Tp>(0)) == 1> {}; 813227825Stheraven 814232950Stheraven#endif // __has_feature(is_polymorphic) 815232950Stheraven 816227825Stheraven// has_virtual_destructor 817227825Stheraven 818227825Stheraven#if __has_feature(has_virtual_destructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 819227825Stheraven 820249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS has_virtual_destructor 821227825Stheraven : public integral_constant<bool, __has_virtual_destructor(_Tp)> {}; 822227825Stheraven 823227825Stheraven#else // _LIBCPP_HAS_TYPE_TRAITS 824227825Stheraven 825249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS has_virtual_destructor 826227825Stheraven : public false_type {}; 827227825Stheraven 828227825Stheraven#endif // _LIBCPP_HAS_TYPE_TRAITS 829227825Stheraven 830227825Stheraven// alignment_of 831227825Stheraven 832249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS alignment_of 833249998Sdim : public integral_constant<size_t, __alignof__(_Tp)> {}; 834227825Stheraven 835227825Stheraven// aligned_storage 836227825Stheraven 837227825Stheraventemplate <class _Hp, class _Tp> 838227825Stheravenstruct __type_list 839227825Stheraven{ 840227825Stheraven typedef _Hp _Head; 841227825Stheraven typedef _Tp _Tail; 842227825Stheraven}; 843227825Stheraven 844227825Stheravenstruct __nat 845227825Stheraven{ 846227825Stheraven#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS 847227825Stheraven __nat() = delete; 848227825Stheraven __nat(const __nat&) = delete; 849227825Stheraven __nat& operator=(const __nat&) = delete; 850227825Stheraven ~__nat() = delete; 851227825Stheraven#endif 852227825Stheraven}; 853227825Stheraven 854227825Stheraventemplate <class _Tp> 855227825Stheravenstruct __align_type 856227825Stheraven{ 857227825Stheraven static const size_t value = alignment_of<_Tp>::value; 858227825Stheraven typedef _Tp type; 859227825Stheraven}; 860227825Stheraven 861242945Stheravenstruct __struct_double {long double __lx;}; 862242945Stheravenstruct __struct_double4 {double __lx[4];}; 863227825Stheraven 864227825Stheraventypedef 865227825Stheraven __type_list<__align_type<unsigned char>, 866227825Stheraven __type_list<__align_type<unsigned short>, 867227825Stheraven __type_list<__align_type<unsigned int>, 868227825Stheraven __type_list<__align_type<unsigned long>, 869227825Stheraven __type_list<__align_type<unsigned long long>, 870227825Stheraven __type_list<__align_type<double>, 871227825Stheraven __type_list<__align_type<long double>, 872227825Stheraven __type_list<__align_type<__struct_double>, 873227825Stheraven __type_list<__align_type<__struct_double4>, 874227825Stheraven __type_list<__align_type<int*>, 875227825Stheraven __nat 876227825Stheraven > > > > > > > > > > __all_types; 877227825Stheraven 878227825Stheraventemplate <class _TL, size_t _Align> struct __find_pod; 879227825Stheraven 880227825Stheraventemplate <class _Hp, size_t _Align> 881227825Stheravenstruct __find_pod<__type_list<_Hp, __nat>, _Align> 882227825Stheraven{ 883227825Stheraven typedef typename conditional< 884227825Stheraven _Align == _Hp::value, 885227825Stheraven typename _Hp::type, 886227825Stheraven void 887227825Stheraven >::type type; 888227825Stheraven}; 889227825Stheraven 890227825Stheraventemplate <class _Hp, class _Tp, size_t _Align> 891227825Stheravenstruct __find_pod<__type_list<_Hp, _Tp>, _Align> 892227825Stheraven{ 893227825Stheraven typedef typename conditional< 894227825Stheraven _Align == _Hp::value, 895227825Stheraven typename _Hp::type, 896227825Stheraven typename __find_pod<_Tp, _Align>::type 897227825Stheraven >::type type; 898227825Stheraven}; 899227825Stheraven 900227825Stheraventemplate <class _TL, size_t _Len> struct __find_max_align; 901227825Stheraven 902227825Stheraventemplate <class _Hp, size_t _Len> 903227825Stheravenstruct __find_max_align<__type_list<_Hp, __nat>, _Len> : public integral_constant<size_t, _Hp::value> {}; 904227825Stheraven 905227825Stheraventemplate <size_t _Len, size_t _A1, size_t _A2> 906227825Stheravenstruct __select_align 907227825Stheraven{ 908227825Stheravenprivate: 909227825Stheraven static const size_t __min = _A2 < _A1 ? _A2 : _A1; 910227825Stheraven static const size_t __max = _A1 < _A2 ? _A2 : _A1; 911227825Stheravenpublic: 912227825Stheraven static const size_t value = _Len < __max ? __min : __max; 913227825Stheraven}; 914227825Stheraven 915227825Stheraventemplate <class _Hp, class _Tp, size_t _Len> 916227825Stheravenstruct __find_max_align<__type_list<_Hp, _Tp>, _Len> 917227825Stheraven : public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {}; 918227825Stheraven 919227825Stheraventemplate <size_t _Len, const size_t _Align = __find_max_align<__all_types, _Len>::value> 920249998Sdimstruct _LIBCPP_TYPE_VIS aligned_storage 921227825Stheraven{ 922227825Stheraven typedef typename __find_pod<__all_types, _Align>::type _Aligner; 923227825Stheraven static_assert(!is_void<_Aligner>::value, ""); 924227825Stheraven union type 925227825Stheraven { 926227825Stheraven _Aligner __align; 927227825Stheraven unsigned char __data[_Len]; 928227825Stheraven }; 929227825Stheraven}; 930227825Stheraven 931227825Stheraven#define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \ 932227825Stheraventemplate <size_t _Len>\ 933249998Sdimstruct _LIBCPP_TYPE_VIS aligned_storage<_Len, n>\ 934227825Stheraven{\ 935227825Stheraven struct _ALIGNAS(n) type\ 936227825Stheraven {\ 937242945Stheraven unsigned char __lx[_Len];\ 938227825Stheraven };\ 939227825Stheraven} 940227825Stheraven 941227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1); 942227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2); 943227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4); 944227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x8); 945227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x10); 946227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x20); 947227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x40); 948227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x80); 949227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x100); 950227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x200); 951227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x400); 952227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x800); 953227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1000); 954227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2000); 955227825Stheraven// MSDN says that MSVC does not support alignment beyond 8192 (=0x2000) 956227825Stheraven#if !defined(_MSC_VER) 957227825Stheraven_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000); 958227825Stheraven#endif // !_MSC_VER 959227825Stheraven 960227825Stheraven#undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION 961227825Stheraven 962249998Sdim#ifndef _LIBCPP_HAS_NO_VARIADICS 963249998Sdim 964249998Sdim// aligned_union 965249998Sdim 966249998Sdimtemplate <size_t _I0, size_t ..._In> 967249998Sdimstruct __static_max; 968249998Sdim 969249998Sdimtemplate <size_t _I0> 970249998Sdimstruct __static_max<_I0> 971249998Sdim{ 972249998Sdim static const size_t value = _I0; 973249998Sdim}; 974249998Sdim 975249998Sdimtemplate <size_t _I0, size_t _I1, size_t ..._In> 976249998Sdimstruct __static_max<_I0, _I1, _In...> 977249998Sdim{ 978249998Sdim static const size_t value = _I0 >= _I1 ? __static_max<_I0, _In...>::value : 979249998Sdim __static_max<_I1, _In...>::value; 980249998Sdim}; 981249998Sdim 982249998Sdimtemplate <size_t _Len, class _Type0, class ..._Types> 983249998Sdimstruct aligned_union 984249998Sdim{ 985249998Sdim static const size_t alignment_value = __static_max<__alignof__(_Type0), 986249998Sdim __alignof__(_Types)...>::value; 987249998Sdim static const size_t __len = __static_max<_Len, sizeof(_Type0), 988249998Sdim sizeof(_Types)...>::value; 989249998Sdim typedef typename aligned_storage<__len, alignment_value>::type type; 990249998Sdim}; 991249998Sdim 992249998Sdim#endif // _LIBCPP_HAS_NO_VARIADICS 993249998Sdim 994227825Stheraven// __promote 995227825Stheraven 996227825Stheraventemplate <class _A1, class _A2 = void, class _A3 = void, 997227825Stheraven bool = (is_arithmetic<_A1>::value || is_void<_A1>::value) && 998227825Stheraven (is_arithmetic<_A2>::value || is_void<_A2>::value) && 999227825Stheraven (is_arithmetic<_A3>::value || is_void<_A3>::value)> 1000227825Stheravenclass __promote {}; 1001227825Stheraven 1002227825Stheraventemplate <class _A1, class _A2, class _A3> 1003227825Stheravenclass __promote<_A1, _A2, _A3, true> 1004227825Stheraven{ 1005227825Stheravenprivate: 1006227825Stheraven typedef typename __promote<_A1>::type __type1; 1007227825Stheraven typedef typename __promote<_A2>::type __type2; 1008227825Stheraven typedef typename __promote<_A3>::type __type3; 1009227825Stheravenpublic: 1010227825Stheraven typedef decltype(__type1() + __type2() + __type3()) type; 1011227825Stheraven}; 1012227825Stheraven 1013227825Stheraventemplate <class _A1, class _A2> 1014227825Stheravenclass __promote<_A1, _A2, void, true> 1015227825Stheraven{ 1016227825Stheravenprivate: 1017227825Stheraven typedef typename __promote<_A1>::type __type1; 1018227825Stheraven typedef typename __promote<_A2>::type __type2; 1019227825Stheravenpublic: 1020227825Stheraven typedef decltype(__type1() + __type2()) type; 1021227825Stheraven}; 1022227825Stheraven 1023227825Stheraventemplate <class _A1> 1024227825Stheravenclass __promote<_A1, void, void, true> 1025227825Stheraven{ 1026227825Stheravenpublic: 1027227825Stheraven typedef typename conditional<is_arithmetic<_A1>::value, 1028227825Stheraven typename conditional<is_integral<_A1>::value, double, _A1>::type, 1029227825Stheraven void 1030227825Stheraven >::type type; 1031227825Stheraven}; 1032227825Stheraven 1033227825Stheraven#ifdef _LIBCPP_STORE_AS_OPTIMIZATION 1034227825Stheraven 1035227825Stheraven// __transform 1036227825Stheraven 1037227825Stheraventemplate <class _Tp, size_t = sizeof(_Tp), bool = is_scalar<_Tp>::value> struct __transform {typedef _Tp type;}; 1038227825Stheraventemplate <class _Tp> struct __transform<_Tp, 1, true> {typedef unsigned char type;}; 1039227825Stheraventemplate <class _Tp> struct __transform<_Tp, 2, true> {typedef unsigned short type;}; 1040227825Stheraventemplate <class _Tp> struct __transform<_Tp, 4, true> {typedef unsigned int type;}; 1041227825Stheraventemplate <class _Tp> struct __transform<_Tp, 8, true> {typedef unsigned long long type;}; 1042227825Stheraven 1043227825Stheraven#endif // _LIBCPP_STORE_AS_OPTIMIZATION 1044227825Stheraven 1045227825Stheraven// make_signed / make_unsigned 1046227825Stheraven 1047227825Stheraventypedef 1048227825Stheraven __type_list<signed char, 1049227825Stheraven __type_list<signed short, 1050227825Stheraven __type_list<signed int, 1051227825Stheraven __type_list<signed long, 1052227825Stheraven __type_list<signed long long, 1053227825Stheraven __nat 1054227825Stheraven > > > > > __signed_types; 1055227825Stheraven 1056227825Stheraventypedef 1057227825Stheraven __type_list<unsigned char, 1058227825Stheraven __type_list<unsigned short, 1059227825Stheraven __type_list<unsigned int, 1060227825Stheraven __type_list<unsigned long, 1061227825Stheraven __type_list<unsigned long long, 1062227825Stheraven __nat 1063227825Stheraven > > > > > __unsigned_types; 1064227825Stheraven 1065227825Stheraventemplate <class _TypeList, size_t _Size, bool = _Size <= sizeof(typename _TypeList::_Head)> struct __find_first; 1066227825Stheraven 1067227825Stheraventemplate <class _Hp, class _Tp, size_t _Size> 1068227825Stheravenstruct __find_first<__type_list<_Hp, _Tp>, _Size, true> 1069227825Stheraven{ 1070227825Stheraven typedef _Hp type; 1071227825Stheraven}; 1072227825Stheraven 1073227825Stheraventemplate <class _Hp, class _Tp, size_t _Size> 1074227825Stheravenstruct __find_first<__type_list<_Hp, _Tp>, _Size, false> 1075227825Stheraven{ 1076227825Stheraven typedef typename __find_first<_Tp, _Size>::type type; 1077227825Stheraven}; 1078227825Stheraven 1079227825Stheraventemplate <class _Tp, class _Up, bool = is_const<typename remove_reference<_Tp>::type>::value, 1080227825Stheraven bool = is_volatile<typename remove_reference<_Tp>::type>::value> 1081227825Stheravenstruct __apply_cv 1082227825Stheraven{ 1083227825Stheraven typedef _Up type; 1084227825Stheraven}; 1085227825Stheraven 1086227825Stheraventemplate <class _Tp, class _Up> 1087227825Stheravenstruct __apply_cv<_Tp, _Up, true, false> 1088227825Stheraven{ 1089227825Stheraven typedef const _Up type; 1090227825Stheraven}; 1091227825Stheraven 1092227825Stheraventemplate <class _Tp, class _Up> 1093227825Stheravenstruct __apply_cv<_Tp, _Up, false, true> 1094227825Stheraven{ 1095227825Stheraven typedef volatile _Up type; 1096227825Stheraven}; 1097227825Stheraven 1098227825Stheraventemplate <class _Tp, class _Up> 1099227825Stheravenstruct __apply_cv<_Tp, _Up, true, true> 1100227825Stheraven{ 1101227825Stheraven typedef const volatile _Up type; 1102227825Stheraven}; 1103227825Stheraven 1104227825Stheraventemplate <class _Tp, class _Up> 1105227825Stheravenstruct __apply_cv<_Tp&, _Up, false, false> 1106227825Stheraven{ 1107227825Stheraven typedef _Up& type; 1108227825Stheraven}; 1109227825Stheraven 1110227825Stheraventemplate <class _Tp, class _Up> 1111227825Stheravenstruct __apply_cv<_Tp&, _Up, true, false> 1112227825Stheraven{ 1113227825Stheraven typedef const _Up& type; 1114227825Stheraven}; 1115227825Stheraven 1116227825Stheraventemplate <class _Tp, class _Up> 1117227825Stheravenstruct __apply_cv<_Tp&, _Up, false, true> 1118227825Stheraven{ 1119227825Stheraven typedef volatile _Up& type; 1120227825Stheraven}; 1121227825Stheraven 1122227825Stheraventemplate <class _Tp, class _Up> 1123227825Stheravenstruct __apply_cv<_Tp&, _Up, true, true> 1124227825Stheraven{ 1125227825Stheraven typedef const volatile _Up& type; 1126227825Stheraven}; 1127227825Stheraven 1128227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> 1129227825Stheravenstruct __make_signed {}; 1130227825Stheraven 1131227825Stheraventemplate <class _Tp> 1132227825Stheravenstruct __make_signed<_Tp, true> 1133227825Stheraven{ 1134227825Stheraven typedef typename __find_first<__signed_types, sizeof(_Tp)>::type type; 1135227825Stheraven}; 1136227825Stheraven 1137227825Stheraventemplate <> struct __make_signed<bool, true> {}; 1138227825Stheraventemplate <> struct __make_signed< signed short, true> {typedef short type;}; 1139227825Stheraventemplate <> struct __make_signed<unsigned short, true> {typedef short type;}; 1140227825Stheraventemplate <> struct __make_signed< signed int, true> {typedef int type;}; 1141227825Stheraventemplate <> struct __make_signed<unsigned int, true> {typedef int type;}; 1142227825Stheraventemplate <> struct __make_signed< signed long, true> {typedef long type;}; 1143227825Stheraventemplate <> struct __make_signed<unsigned long, true> {typedef long type;}; 1144227825Stheraventemplate <> struct __make_signed< signed long long, true> {typedef long long type;}; 1145227825Stheraventemplate <> struct __make_signed<unsigned long long, true> {typedef long long type;}; 1146227825Stheraven 1147227825Stheraventemplate <class _Tp> 1148249998Sdimstruct _LIBCPP_TYPE_VIS make_signed 1149227825Stheraven{ 1150227825Stheraven typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type; 1151227825Stheraven}; 1152227825Stheraven 1153227825Stheraventemplate <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> 1154227825Stheravenstruct __make_unsigned {}; 1155227825Stheraven 1156227825Stheraventemplate <class _Tp> 1157227825Stheravenstruct __make_unsigned<_Tp, true> 1158227825Stheraven{ 1159227825Stheraven typedef typename __find_first<__unsigned_types, sizeof(_Tp)>::type type; 1160227825Stheraven}; 1161227825Stheraven 1162227825Stheraventemplate <> struct __make_unsigned<bool, true> {}; 1163227825Stheraventemplate <> struct __make_unsigned< signed short, true> {typedef unsigned short type;}; 1164227825Stheraventemplate <> struct __make_unsigned<unsigned short, true> {typedef unsigned short type;}; 1165227825Stheraventemplate <> struct __make_unsigned< signed int, true> {typedef unsigned int type;}; 1166227825Stheraventemplate <> struct __make_unsigned<unsigned int, true> {typedef unsigned int type;}; 1167227825Stheraventemplate <> struct __make_unsigned< signed long, true> {typedef unsigned long type;}; 1168227825Stheraventemplate <> struct __make_unsigned<unsigned long, true> {typedef unsigned long type;}; 1169227825Stheraventemplate <> struct __make_unsigned< signed long long, true> {typedef unsigned long long type;}; 1170227825Stheraventemplate <> struct __make_unsigned<unsigned long long, true> {typedef unsigned long long type;}; 1171227825Stheraven 1172227825Stheraventemplate <class _Tp> 1173249998Sdimstruct _LIBCPP_TYPE_VIS make_unsigned 1174227825Stheraven{ 1175227825Stheraven typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type; 1176227825Stheraven}; 1177227825Stheraven 1178227825Stheraven#ifdef _LIBCPP_HAS_NO_VARIADICS 1179227825Stheraven 1180227825Stheraventemplate <class _Tp, class _Up = void, class V = void> 1181249998Sdimstruct _LIBCPP_TYPE_VIS common_type 1182227825Stheraven{ 1183227825Stheravenpublic: 1184227825Stheraven typedef typename common_type<typename common_type<_Tp, _Up>::type, V>::type type; 1185227825Stheraven}; 1186227825Stheraven 1187227825Stheraventemplate <class _Tp> 1188249998Sdimstruct _LIBCPP_TYPE_VIS common_type<_Tp, void, void> 1189227825Stheraven{ 1190227825Stheravenpublic: 1191227825Stheraven typedef _Tp type; 1192227825Stheraven}; 1193227825Stheraven 1194227825Stheraventemplate <class _Tp, class _Up> 1195249998Sdimstruct _LIBCPP_TYPE_VIS common_type<_Tp, _Up, void> 1196227825Stheraven{ 1197227825Stheravenprivate: 1198227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1199227825Stheraven static _Tp&& __t(); 1200227825Stheraven static _Up&& __u(); 1201227825Stheraven#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1202227825Stheraven static _Tp __t(); 1203227825Stheraven static _Up __u(); 1204227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1205227825Stheravenpublic: 1206232950Stheraven typedef typename remove_reference<decltype(true ? __t() : __u())>::type type; 1207227825Stheraven}; 1208227825Stheraven 1209227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1210227825Stheraven 1211227825Stheraventemplate <class ..._Tp> struct common_type; 1212227825Stheraven 1213227825Stheraventemplate <class _Tp> 1214249998Sdimstruct _LIBCPP_TYPE_VIS common_type<_Tp> 1215227825Stheraven{ 1216227825Stheraven typedef _Tp type; 1217227825Stheraven}; 1218227825Stheraven 1219227825Stheraventemplate <class _Tp, class _Up> 1220249998Sdimstruct _LIBCPP_TYPE_VIS common_type<_Tp, _Up> 1221227825Stheraven{ 1222227825Stheravenprivate: 1223227825Stheraven static _Tp&& __t(); 1224227825Stheraven static _Up&& __u(); 1225227825Stheraven static bool __f(); 1226227825Stheravenpublic: 1227232950Stheraven typedef typename remove_reference<decltype(__f() ? __t() : __u())>::type type; 1228227825Stheraven}; 1229227825Stheraven 1230227825Stheraventemplate <class _Tp, class _Up, class ..._Vp> 1231249998Sdimstruct _LIBCPP_TYPE_VIS common_type<_Tp, _Up, _Vp...> 1232227825Stheraven{ 1233227825Stheraven typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp...>::type type; 1234227825Stheraven}; 1235227825Stheraven 1236227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 1237227825Stheraven 1238227825Stheraven// is_assignable 1239227825Stheraven 1240227825Stheraventemplate <class _Tp, class _Arg> 1241227825Stheravendecltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>(), true_type())) 1242227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1243227825Stheraven__is_assignable_test(_Tp&&, _Arg&&); 1244227825Stheraven#else 1245227825Stheraven__is_assignable_test(_Tp, _Arg&); 1246227825Stheraven#endif 1247227825Stheraven 1248227825Stheraventemplate <class _Arg> 1249227825Stheravenfalse_type 1250227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1251227825Stheraven__is_assignable_test(__any, _Arg&&); 1252227825Stheraven#else 1253227825Stheraven__is_assignable_test(__any, _Arg&); 1254227825Stheraven#endif 1255227825Stheraven 1256227825Stheraventemplate <class _Tp, class _Arg, bool = is_void<_Tp>::value || is_void<_Arg>::value> 1257227825Stheravenstruct __is_assignable_imp 1258227825Stheraven : public common_type 1259227825Stheraven < 1260227825Stheraven decltype(__is_assignable_test(declval<_Tp>(), declval<_Arg>())) 1261227825Stheraven >::type {}; 1262227825Stheraven 1263227825Stheraventemplate <class _Tp, class _Arg> 1264227825Stheravenstruct __is_assignable_imp<_Tp, _Arg, true> 1265227825Stheraven : public false_type 1266227825Stheraven{ 1267227825Stheraven}; 1268227825Stheraven 1269227825Stheraventemplate <class _Tp, class _Arg> 1270227825Stheravenstruct is_assignable 1271227825Stheraven : public __is_assignable_imp<_Tp, _Arg> {}; 1272227825Stheraven 1273227825Stheraven// is_copy_assignable 1274227825Stheraven 1275249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_copy_assignable 1276227825Stheraven : public is_assignable<typename add_lvalue_reference<_Tp>::type, 1277227825Stheraven const typename add_lvalue_reference<_Tp>::type> {}; 1278227825Stheraven 1279227825Stheraven// is_move_assignable 1280227825Stheraven 1281249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_move_assignable 1282227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1283227825Stheraven : public is_assignable<typename add_lvalue_reference<_Tp>::type, 1284227825Stheraven const typename add_rvalue_reference<_Tp>::type> {}; 1285227825Stheraven#else 1286227825Stheraven : public is_copy_assignable<_Tp> {}; 1287227825Stheraven#endif 1288227825Stheraven 1289227825Stheraven// is_destructible 1290227825Stheraven 1291227825Stheraventemplate <class _Tp> 1292227825Stheravenstruct __destructible_test 1293227825Stheraven{ 1294227825Stheraven _Tp __t; 1295227825Stheraven}; 1296227825Stheraven 1297227825Stheraventemplate <class _Tp> 1298227825Stheravendecltype((_VSTD::declval<__destructible_test<_Tp> >().~__destructible_test<_Tp>(), true_type())) 1299227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1300227825Stheraven__is_destructible_test(_Tp&&); 1301227825Stheraven#else 1302227825Stheraven__is_destructible_test(_Tp&); 1303227825Stheraven#endif 1304227825Stheraven 1305227825Stheravenfalse_type 1306227825Stheraven__is_destructible_test(__any); 1307227825Stheraven 1308227825Stheraventemplate <class _Tp, bool = is_void<_Tp>::value || is_abstract<_Tp>::value> 1309227825Stheravenstruct __destructible_imp 1310227825Stheraven : public common_type 1311227825Stheraven < 1312227825Stheraven decltype(__is_destructible_test(declval<_Tp>())) 1313227825Stheraven >::type {}; 1314227825Stheraven 1315227825Stheraventemplate <class _Tp> 1316227825Stheravenstruct __destructible_imp<_Tp, true> 1317227825Stheraven : public false_type {}; 1318227825Stheraven 1319227825Stheraventemplate <class _Tp> 1320227825Stheravenstruct is_destructible 1321227825Stheraven : public __destructible_imp<_Tp> {}; 1322227825Stheraven 1323227825Stheraven// move 1324227825Stheraven 1325227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1326227825Stheraven 1327227825Stheraventemplate <class _Tp> 1328227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1329227825Stheraventypename remove_reference<_Tp>::type&& 1330227825Stheravenmove(_Tp&& __t) _NOEXCEPT 1331227825Stheraven{ 1332227825Stheraven typedef typename remove_reference<_Tp>::type _Up; 1333227825Stheraven return static_cast<_Up&&>(__t); 1334227825Stheraven} 1335227825Stheraven 1336227825Stheraventemplate <class _Tp> 1337227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1338227825Stheraven_Tp&& 1339227825Stheravenforward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT 1340227825Stheraven{ 1341227825Stheraven return static_cast<_Tp&&>(__t); 1342227825Stheraven} 1343227825Stheraven 1344227825Stheraventemplate <class _Tp> 1345227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1346227825Stheraven_Tp&& 1347227825Stheravenforward(typename std::remove_reference<_Tp>::type&& __t) _NOEXCEPT 1348227825Stheraven{ 1349227825Stheraven static_assert(!std::is_lvalue_reference<_Tp>::value, 1350227825Stheraven "Can not forward an rvalue as an lvalue."); 1351227825Stheraven return static_cast<_Tp&&>(__t); 1352227825Stheraven} 1353227825Stheraven 1354227825Stheraven#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1355227825Stheraven 1356227825Stheraventemplate <class _Tp> 1357227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1358234976Stheraven_Tp& 1359227825Stheravenmove(_Tp& __t) 1360227825Stheraven{ 1361227825Stheraven return __t; 1362227825Stheraven} 1363227825Stheraven 1364227825Stheraventemplate <class _Tp> 1365227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1366234976Stheravenconst _Tp& 1367232950Stheravenmove(const _Tp& __t) 1368232950Stheraven{ 1369232950Stheraven return __t; 1370232950Stheraven} 1371232950Stheraven 1372232950Stheraventemplate <class _Tp> 1373232950Stheraveninline _LIBCPP_INLINE_VISIBILITY 1374234976Stheraven_Tp& 1375234976Stheravenforward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT 1376227825Stheraven{ 1377227825Stheraven return __t; 1378227825Stheraven} 1379227825Stheraven 1380227825Stheraven 1381234976Stheraventemplate <class _Tp> 1382234976Stheravenclass __rv 1383227825Stheraven{ 1384234976Stheraven typedef typename remove_reference<_Tp>::type _Trr; 1385234976Stheraven _Trr& t_; 1386234976Stheravenpublic: 1387234976Stheraven _LIBCPP_INLINE_VISIBILITY 1388234976Stheraven _Trr* operator->() {return &t_;} 1389234976Stheraven _LIBCPP_INLINE_VISIBILITY 1390234976Stheraven explicit __rv(_Trr& __t) : t_(__t) {} 1391234976Stheraven}; 1392227825Stheraven 1393227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1394227825Stheraven 1395227825Stheraventemplate <class _Tp> 1396249998Sdimstruct _LIBCPP_TYPE_VIS decay 1397227825Stheraven{ 1398227825Stheravenprivate: 1399227825Stheraven typedef typename remove_reference<_Tp>::type _Up; 1400227825Stheravenpublic: 1401227825Stheraven typedef typename conditional 1402227825Stheraven < 1403227825Stheraven is_array<_Up>::value, 1404227825Stheraven typename remove_extent<_Up>::type*, 1405227825Stheraven typename conditional 1406227825Stheraven < 1407227825Stheraven is_function<_Up>::value, 1408227825Stheraven typename add_pointer<_Up>::type, 1409227825Stheraven typename remove_cv<_Up>::type 1410227825Stheraven >::type 1411227825Stheraven >::type type; 1412227825Stheraven}; 1413227825Stheraven 1414227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1415227825Stheraven 1416227825Stheraventemplate <class _Tp> 1417227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1418227825Stheraventypename decay<_Tp>::type 1419227825Stheraven__decay_copy(_Tp&& __t) 1420227825Stheraven{ 1421227825Stheraven return _VSTD::forward<_Tp>(__t); 1422227825Stheraven} 1423227825Stheraven 1424227825Stheraven#else 1425227825Stheraven 1426227825Stheraventemplate <class _Tp> 1427227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1428227825Stheraventypename decay<_Tp>::type 1429227825Stheraven__decay_copy(const _Tp& __t) 1430227825Stheraven{ 1431227825Stheraven return _VSTD::forward<_Tp>(__t); 1432227825Stheraven} 1433227825Stheraven 1434227825Stheraven#endif 1435227825Stheraven 1436227825Stheraventemplate <class _MP, bool _IsMemberFuctionPtr, bool _IsMemberObjectPtr> 1437227825Stheravenstruct __member_pointer_traits_imp 1438227825Stheraven{ 1439227825Stheraven}; 1440227825Stheraven 1441227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 1442227825Stheraven 1443232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1444232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...), true, false> 1445227825Stheraven{ 1446227825Stheraven typedef _Class _ClassType; 1447232950Stheraven typedef _Rp _ReturnType; 1448227825Stheraven}; 1449227825Stheraven 1450232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1451232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const, true, false> 1452227825Stheraven{ 1453227825Stheraven typedef _Class const _ClassType; 1454232950Stheraven typedef _Rp _ReturnType; 1455227825Stheraven}; 1456227825Stheraven 1457232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1458232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile, true, false> 1459227825Stheraven{ 1460227825Stheraven typedef _Class volatile _ClassType; 1461232950Stheraven typedef _Rp _ReturnType; 1462227825Stheraven}; 1463227825Stheraven 1464232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1465232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile, true, false> 1466227825Stheraven{ 1467227825Stheraven typedef _Class const volatile _ClassType; 1468232950Stheraven typedef _Rp _ReturnType; 1469227825Stheraven}; 1470227825Stheraven 1471227825Stheraven#if __has_feature(cxx_reference_qualified_functions) 1472227825Stheraven 1473232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1474232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &, true, false> 1475227825Stheraven{ 1476227825Stheraven typedef _Class& _ClassType; 1477232950Stheraven typedef _Rp _ReturnType; 1478227825Stheraven}; 1479227825Stheraven 1480232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1481232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&, true, false> 1482227825Stheraven{ 1483227825Stheraven typedef _Class const& _ClassType; 1484232950Stheraven typedef _Rp _ReturnType; 1485227825Stheraven}; 1486227825Stheraven 1487232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1488232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&, true, false> 1489227825Stheraven{ 1490227825Stheraven typedef _Class volatile& _ClassType; 1491232950Stheraven typedef _Rp _ReturnType; 1492227825Stheraven}; 1493227825Stheraven 1494232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1495232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&, true, false> 1496227825Stheraven{ 1497227825Stheraven typedef _Class const volatile& _ClassType; 1498232950Stheraven typedef _Rp _ReturnType; 1499227825Stheraven}; 1500227825Stheraven 1501232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1502232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &&, true, false> 1503227825Stheraven{ 1504227825Stheraven typedef _Class&& _ClassType; 1505232950Stheraven typedef _Rp _ReturnType; 1506227825Stheraven}; 1507227825Stheraven 1508232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1509232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&&, true, false> 1510227825Stheraven{ 1511227825Stheraven typedef _Class const&& _ClassType; 1512232950Stheraven typedef _Rp _ReturnType; 1513227825Stheraven}; 1514227825Stheraven 1515232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1516232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&&, true, false> 1517227825Stheraven{ 1518227825Stheraven typedef _Class volatile&& _ClassType; 1519232950Stheraven typedef _Rp _ReturnType; 1520227825Stheraven}; 1521227825Stheraven 1522232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 1523232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&&, true, false> 1524227825Stheraven{ 1525227825Stheraven typedef _Class const volatile&& _ClassType; 1526232950Stheraven typedef _Rp _ReturnType; 1527227825Stheraven}; 1528227825Stheraven 1529227825Stheraven#endif // __has_feature(cxx_reference_qualified_functions) 1530227825Stheraven 1531227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1532227825Stheraven 1533232950Stheraventemplate <class _Rp, class _Class> 1534232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(), true, false> 1535227825Stheraven{ 1536227825Stheraven typedef _Class _ClassType; 1537232950Stheraven typedef _Rp _ReturnType; 1538227825Stheraven}; 1539227825Stheraven 1540232950Stheraventemplate <class _Rp, class _Class, class _P0> 1541232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0), true, false> 1542227825Stheraven{ 1543227825Stheraven typedef _Class _ClassType; 1544232950Stheraven typedef _Rp _ReturnType; 1545227825Stheraven}; 1546227825Stheraven 1547232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1> 1548232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1), true, false> 1549227825Stheraven{ 1550227825Stheraven typedef _Class _ClassType; 1551232950Stheraven typedef _Rp _ReturnType; 1552227825Stheraven}; 1553227825Stheraven 1554232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1, class _P2> 1555232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2), true, false> 1556227825Stheraven{ 1557227825Stheraven typedef _Class _ClassType; 1558232950Stheraven typedef _Rp _ReturnType; 1559227825Stheraven}; 1560227825Stheraven 1561232950Stheraventemplate <class _Rp, class _Class> 1562232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)() const, true, false> 1563227825Stheraven{ 1564227825Stheraven typedef _Class const _ClassType; 1565232950Stheraven typedef _Rp _ReturnType; 1566227825Stheraven}; 1567227825Stheraven 1568232950Stheraventemplate <class _Rp, class _Class, class _P0> 1569232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const, true, false> 1570227825Stheraven{ 1571227825Stheraven typedef _Class const _ClassType; 1572232950Stheraven typedef _Rp _ReturnType; 1573227825Stheraven}; 1574227825Stheraven 1575232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1> 1576232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const, true, false> 1577227825Stheraven{ 1578227825Stheraven typedef _Class const _ClassType; 1579232950Stheraven typedef _Rp _ReturnType; 1580227825Stheraven}; 1581227825Stheraven 1582232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1, class _P2> 1583232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const, true, false> 1584227825Stheraven{ 1585227825Stheraven typedef _Class const _ClassType; 1586232950Stheraven typedef _Rp _ReturnType; 1587227825Stheraven}; 1588227825Stheraven 1589232950Stheraventemplate <class _Rp, class _Class> 1590232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)() volatile, true, false> 1591227825Stheraven{ 1592227825Stheraven typedef _Class volatile _ClassType; 1593232950Stheraven typedef _Rp _ReturnType; 1594227825Stheraven}; 1595227825Stheraven 1596232950Stheraventemplate <class _Rp, class _Class, class _P0> 1597232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) volatile, true, false> 1598227825Stheraven{ 1599227825Stheraven typedef _Class volatile _ClassType; 1600232950Stheraven typedef _Rp _ReturnType; 1601227825Stheraven}; 1602227825Stheraven 1603232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1> 1604232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) volatile, true, false> 1605227825Stheraven{ 1606227825Stheraven typedef _Class volatile _ClassType; 1607232950Stheraven typedef _Rp _ReturnType; 1608227825Stheraven}; 1609227825Stheraven 1610232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1, class _P2> 1611232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) volatile, true, false> 1612227825Stheraven{ 1613227825Stheraven typedef _Class volatile _ClassType; 1614232950Stheraven typedef _Rp _ReturnType; 1615227825Stheraven}; 1616227825Stheraven 1617232950Stheraventemplate <class _Rp, class _Class> 1618232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)() const volatile, true, false> 1619227825Stheraven{ 1620227825Stheraven typedef _Class const volatile _ClassType; 1621232950Stheraven typedef _Rp _ReturnType; 1622227825Stheraven}; 1623227825Stheraven 1624232950Stheraventemplate <class _Rp, class _Class, class _P0> 1625232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const volatile, true, false> 1626227825Stheraven{ 1627227825Stheraven typedef _Class const volatile _ClassType; 1628232950Stheraven typedef _Rp _ReturnType; 1629227825Stheraven}; 1630227825Stheraven 1631232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1> 1632232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const volatile, true, false> 1633227825Stheraven{ 1634227825Stheraven typedef _Class const volatile _ClassType; 1635232950Stheraven typedef _Rp _ReturnType; 1636227825Stheraven}; 1637227825Stheraven 1638232950Stheraventemplate <class _Rp, class _Class, class _P0, class _P1, class _P2> 1639232950Stheravenstruct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const volatile, true, false> 1640227825Stheraven{ 1641227825Stheraven typedef _Class const volatile _ClassType; 1642232950Stheraven typedef _Rp _ReturnType; 1643227825Stheraven}; 1644227825Stheraven 1645227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 1646227825Stheraven 1647232950Stheraventemplate <class _Rp, class _Class> 1648232950Stheravenstruct __member_pointer_traits_imp<_Rp _Class::*, false, true> 1649227825Stheraven{ 1650227825Stheraven typedef _Class _ClassType; 1651232950Stheraven typedef _Rp _ReturnType; 1652227825Stheraven}; 1653227825Stheraven 1654227825Stheraventemplate <class _MP> 1655227825Stheravenstruct __member_pointer_traits 1656227825Stheraven : public __member_pointer_traits_imp<_MP, 1657227825Stheraven is_member_function_pointer<_MP>::value, 1658227825Stheraven is_member_object_pointer<_MP>::value> 1659227825Stheraven{ 1660227825Stheraven// typedef ... _ClassType; 1661227825Stheraven// typedef ... _ReturnType; 1662227825Stheraven}; 1663227825Stheraven 1664227825Stheraven// result_of 1665227825Stheraven 1666227825Stheraventemplate <class _Callable> class result_of; 1667227825Stheraven 1668241903Sdim#ifdef _LIBCPP_HAS_NO_VARIADICS 1669241903Sdim 1670227825Stheraventemplate <class _Fn, bool, bool> 1671227825Stheravenclass __result_of 1672227825Stheraven{ 1673227825Stheraven}; 1674227825Stheraven 1675227825Stheraventemplate <class _Fn> 1676227825Stheravenclass __result_of<_Fn(), true, false> 1677227825Stheraven{ 1678227825Stheravenpublic: 1679227825Stheraven typedef decltype(declval<_Fn>()()) type; 1680227825Stheraven}; 1681227825Stheraven 1682227825Stheraventemplate <class _Fn, class _A0> 1683227825Stheravenclass __result_of<_Fn(_A0), true, false> 1684227825Stheraven{ 1685227825Stheravenpublic: 1686227825Stheraven typedef decltype(declval<_Fn>()(declval<_A0>())) type; 1687227825Stheraven}; 1688227825Stheraven 1689227825Stheraventemplate <class _Fn, class _A0, class _A1> 1690227825Stheravenclass __result_of<_Fn(_A0, _A1), true, false> 1691227825Stheraven{ 1692227825Stheravenpublic: 1693227825Stheraven typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>())) type; 1694227825Stheraven}; 1695227825Stheraven 1696227825Stheraventemplate <class _Fn, class _A0, class _A1, class _A2> 1697227825Stheravenclass __result_of<_Fn(_A0, _A1, _A2), true, false> 1698227825Stheraven{ 1699227825Stheravenpublic: 1700227825Stheraven typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>(), declval<_A2>())) type; 1701227825Stheraven}; 1702227825Stheraven 1703227825Stheraventemplate <class _MP, class _Tp, bool _IsMemberFunctionPtr> 1704227825Stheravenstruct __result_of_mp; 1705227825Stheraven 1706227825Stheraven// member function pointer 1707227825Stheraven 1708227825Stheraventemplate <class _MP, class _Tp> 1709227825Stheravenstruct __result_of_mp<_MP, _Tp, true> 1710227825Stheraven : public common_type<typename __member_pointer_traits<_MP>::_ReturnType> 1711227825Stheraven{ 1712227825Stheraven}; 1713227825Stheraven 1714227825Stheraven// member data pointer 1715227825Stheraven 1716227825Stheraventemplate <class _MP, class _Tp, bool> 1717227825Stheravenstruct __result_of_mdp; 1718227825Stheraven 1719232950Stheraventemplate <class _Rp, class _Class, class _Tp> 1720232950Stheravenstruct __result_of_mdp<_Rp _Class::*, _Tp, false> 1721227825Stheraven{ 1722232950Stheraven typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _Rp>::type& type; 1723227825Stheraven}; 1724227825Stheraven 1725232950Stheraventemplate <class _Rp, class _Class, class _Tp> 1726232950Stheravenstruct __result_of_mdp<_Rp _Class::*, _Tp, true> 1727227825Stheraven{ 1728232950Stheraven typedef typename __apply_cv<_Tp, _Rp>::type& type; 1729227825Stheraven}; 1730227825Stheraven 1731232950Stheraventemplate <class _Rp, class _Class, class _Tp> 1732232950Stheravenstruct __result_of_mp<_Rp _Class::*, _Tp, false> 1733232950Stheraven : public __result_of_mdp<_Rp _Class::*, _Tp, 1734227825Stheraven is_base_of<_Class, typename remove_reference<_Tp>::type>::value> 1735227825Stheraven{ 1736227825Stheraven}; 1737227825Stheraven 1738227825Stheraven 1739227825Stheraven 1740227825Stheraventemplate <class _Fn, class _Tp> 1741227825Stheravenclass __result_of<_Fn(_Tp), false, true> // _Fn must be member pointer 1742227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1743227825Stheraven _Tp, 1744227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1745227825Stheraven{ 1746227825Stheraven}; 1747227825Stheraven 1748227825Stheraventemplate <class _Fn, class _Tp, class _A0> 1749227825Stheravenclass __result_of<_Fn(_Tp, _A0), false, true> // _Fn must be member pointer 1750227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1751227825Stheraven _Tp, 1752227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1753227825Stheraven{ 1754227825Stheraven}; 1755227825Stheraven 1756227825Stheraventemplate <class _Fn, class _Tp, class _A0, class _A1> 1757227825Stheravenclass __result_of<_Fn(_Tp, _A0, _A1), false, true> // _Fn must be member pointer 1758227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1759227825Stheraven _Tp, 1760227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1761227825Stheraven{ 1762227825Stheraven}; 1763227825Stheraven 1764227825Stheraventemplate <class _Fn, class _Tp, class _A0, class _A1, class _A2> 1765227825Stheravenclass __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true> // _Fn must be member pointer 1766227825Stheraven : public __result_of_mp<typename remove_reference<_Fn>::type, 1767227825Stheraven _Tp, 1768227825Stheraven is_member_function_pointer<typename remove_reference<_Fn>::type>::value> 1769227825Stheraven{ 1770227825Stheraven}; 1771227825Stheraven 1772227825Stheraven// result_of 1773227825Stheraven 1774227825Stheraventemplate <class _Fn> 1775249998Sdimclass _LIBCPP_TYPE_VIS result_of<_Fn()> 1776227825Stheraven : public __result_of<_Fn(), 1777227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1778227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1779227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1780227825Stheraven > 1781227825Stheraven{ 1782227825Stheraven}; 1783227825Stheraven 1784227825Stheraventemplate <class _Fn, class _A0> 1785249998Sdimclass _LIBCPP_TYPE_VIS result_of<_Fn(_A0)> 1786227825Stheraven : public __result_of<_Fn(_A0), 1787227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1788227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1789227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1790227825Stheraven > 1791227825Stheraven{ 1792227825Stheraven}; 1793227825Stheraven 1794227825Stheraventemplate <class _Fn, class _A0, class _A1> 1795249998Sdimclass _LIBCPP_TYPE_VIS result_of<_Fn(_A0, _A1)> 1796227825Stheraven : public __result_of<_Fn(_A0, _A1), 1797227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1798227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1799227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1800227825Stheraven > 1801227825Stheraven{ 1802227825Stheraven}; 1803227825Stheraven 1804227825Stheraventemplate <class _Fn, class _A0, class _A1, class _A2> 1805249998Sdimclass _LIBCPP_TYPE_VIS result_of<_Fn(_A0, _A1, _A2)> 1806227825Stheraven : public __result_of<_Fn(_A0, _A1, _A2), 1807227825Stheraven is_class<typename remove_reference<_Fn>::type>::value || 1808227825Stheraven is_function<typename remove_reference<_Fn>::type>::value, 1809227825Stheraven is_member_pointer<typename remove_reference<_Fn>::type>::value 1810227825Stheraven > 1811227825Stheraven{ 1812227825Stheraven}; 1813227825Stheraven 1814227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 1815227825Stheraven 1816227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 1817227825Stheraven 1818227825Stheraven// template <class T, class... Args> struct is_constructible; 1819227825Stheraven 1820227825Stheraven// main is_constructible test 1821227825Stheraven 1822242945Stheraventemplate<typename, typename T> struct __select_2nd { typedef T type; }; 1823242945Stheraven 1824227825Stheraventemplate <class _Tp, class ..._Args> 1825242945Stheraventypename __select_2nd<decltype(_VSTD::move(_Tp(_VSTD::declval<_Args>()...))), true_type>::type 1826227825Stheraven__is_constructible_test(_Tp&&, _Args&& ...); 1827227825Stheraven 1828227825Stheraventemplate <class ..._Args> 1829227825Stheravenfalse_type 1830227825Stheraven__is_constructible_test(__any, _Args&& ...); 1831227825Stheraven 1832227825Stheraventemplate <bool, class _Tp, class... _Args> 1833227825Stheravenstruct __is_constructible // false, _Tp is not a scalar 1834227825Stheraven : public common_type 1835227825Stheraven < 1836227825Stheraven decltype(__is_constructible_test(declval<_Tp>(), declval<_Args>()...)) 1837227825Stheraven >::type 1838227825Stheraven {}; 1839227825Stheraven 1840227825Stheraven// function types are not constructible 1841227825Stheraven 1842232950Stheraventemplate <class _Rp, class... _A1, class... _A2> 1843232950Stheravenstruct __is_constructible<false, _Rp(_A1...), _A2...> 1844227825Stheraven : public false_type 1845227825Stheraven {}; 1846227825Stheraven 1847227825Stheraven// handle scalars and reference types 1848227825Stheraven 1849227825Stheraven// Scalars are default constructible, references are not 1850227825Stheraven 1851227825Stheraventemplate <class _Tp> 1852227825Stheravenstruct __is_constructible<true, _Tp> 1853227825Stheraven : public is_scalar<_Tp> 1854227825Stheraven {}; 1855227825Stheraven 1856227825Stheraven// Scalars and references are constructible from one arg if that arg is 1857227825Stheraven// implicitly convertible to the scalar or reference. 1858227825Stheraven 1859227825Stheraventemplate <class _Tp> 1860227825Stheravenstruct __is_constructible_ref 1861227825Stheraven{ 1862242945Stheraven true_type static __lxx(_Tp); 1863242945Stheraven false_type static __lxx(...); 1864227825Stheraven}; 1865227825Stheraven 1866227825Stheraventemplate <class _Tp, class _A0> 1867227825Stheravenstruct __is_constructible<true, _Tp, _A0> 1868227825Stheraven : public common_type 1869227825Stheraven < 1870242945Stheraven decltype(__is_constructible_ref<_Tp>::__lxx(declval<_A0>())) 1871227825Stheraven >::type 1872227825Stheraven {}; 1873227825Stheraven 1874227825Stheraven// Scalars and references are not constructible from multiple args. 1875227825Stheraven 1876227825Stheraventemplate <class _Tp, class _A0, class ..._Args> 1877227825Stheravenstruct __is_constructible<true, _Tp, _A0, _Args...> 1878227825Stheraven : public false_type 1879227825Stheraven {}; 1880227825Stheraven 1881227825Stheraven// Treat scalars and reference types separately 1882227825Stheraven 1883227825Stheraventemplate <bool, class _Tp, class... _Args> 1884227825Stheravenstruct __is_constructible_void_check 1885227825Stheraven : public __is_constructible<is_scalar<_Tp>::value || is_reference<_Tp>::value, 1886227825Stheraven _Tp, _Args...> 1887227825Stheraven {}; 1888227825Stheraven 1889227825Stheraven// If any of T or Args is void, is_constructible should be false 1890227825Stheraven 1891227825Stheraventemplate <class _Tp, class... _Args> 1892227825Stheravenstruct __is_constructible_void_check<true, _Tp, _Args...> 1893227825Stheraven : public false_type 1894227825Stheraven {}; 1895227825Stheraven 1896227825Stheraventemplate <class ..._Args> struct __contains_void; 1897227825Stheraven 1898227825Stheraventemplate <> struct __contains_void<> : false_type {}; 1899227825Stheraven 1900227825Stheraventemplate <class _A0, class ..._Args> 1901227825Stheravenstruct __contains_void<_A0, _Args...> 1902227825Stheraven{ 1903227825Stheraven static const bool value = is_void<_A0>::value || 1904227825Stheraven __contains_void<_Args...>::value; 1905227825Stheraven}; 1906227825Stheraven 1907227825Stheraven// is_constructible entry point 1908227825Stheraven 1909227825Stheraventemplate <class _Tp, class... _Args> 1910249998Sdimstruct _LIBCPP_TYPE_VIS is_constructible 1911227825Stheraven : public __is_constructible_void_check<__contains_void<_Tp, _Args...>::value 1912227825Stheraven || is_abstract<_Tp>::value, 1913227825Stheraven _Tp, _Args...> 1914227825Stheraven {}; 1915227825Stheraven 1916227825Stheraven// Array types are default constructible if their element type 1917227825Stheraven// is default constructible 1918227825Stheraven 1919232950Stheraventemplate <class _Ap, size_t _Np> 1920232950Stheravenstruct __is_constructible<false, _Ap[_Np]> 1921232950Stheraven : public is_constructible<typename remove_all_extents<_Ap>::type> 1922227825Stheraven {}; 1923227825Stheraven 1924227825Stheraven// Otherwise array types are not constructible by this syntax 1925227825Stheraven 1926232950Stheraventemplate <class _Ap, size_t _Np, class ..._Args> 1927232950Stheravenstruct __is_constructible<false, _Ap[_Np], _Args...> 1928227825Stheraven : public false_type 1929227825Stheraven {}; 1930227825Stheraven 1931227825Stheraven// Incomplete array types are not constructible 1932227825Stheraven 1933232950Stheraventemplate <class _Ap, class ..._Args> 1934232950Stheravenstruct __is_constructible<false, _Ap[], _Args...> 1935227825Stheraven : public false_type 1936227825Stheraven {}; 1937227825Stheraven 1938227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 1939227825Stheraven 1940227825Stheraven// template <class T> struct is_constructible0; 1941227825Stheraven 1942227825Stheraven// main is_constructible0 test 1943227825Stheraven 1944227825Stheraventemplate <class _Tp> 1945227825Stheravendecltype((_Tp(), true_type())) 1946227825Stheraven__is_constructible0_test(_Tp&); 1947227825Stheraven 1948227825Stheravenfalse_type 1949227825Stheraven__is_constructible0_test(__any); 1950227825Stheraven 1951227825Stheraventemplate <class _Tp, class _A0> 1952227825Stheravendecltype((_Tp(_VSTD::declval<_A0>()), true_type())) 1953227825Stheraven__is_constructible1_test(_Tp&, _A0&); 1954227825Stheraven 1955227825Stheraventemplate <class _A0> 1956227825Stheravenfalse_type 1957227825Stheraven__is_constructible1_test(__any, _A0&); 1958227825Stheraven 1959227825Stheraventemplate <class _Tp, class _A0, class _A1> 1960227825Stheravendecltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>()), true_type())) 1961227825Stheraven__is_constructible2_test(_Tp&, _A0&, _A1&); 1962227825Stheraven 1963227825Stheraventemplate <class _A0, class _A1> 1964227825Stheravenfalse_type 1965227825Stheraven__is_constructible2_test(__any, _A0&, _A1&); 1966227825Stheraven 1967227825Stheraventemplate <bool, class _Tp> 1968227825Stheravenstruct __is_constructible0_imp // false, _Tp is not a scalar 1969227825Stheraven : public common_type 1970227825Stheraven < 1971227825Stheraven decltype(__is_constructible0_test(declval<_Tp&>())) 1972227825Stheraven >::type 1973227825Stheraven {}; 1974227825Stheraven 1975227825Stheraventemplate <bool, class _Tp, class _A0> 1976227825Stheravenstruct __is_constructible1_imp // false, _Tp is not a scalar 1977227825Stheraven : public common_type 1978227825Stheraven < 1979227825Stheraven decltype(__is_constructible1_test(declval<_Tp&>(), declval<_A0&>())) 1980227825Stheraven >::type 1981227825Stheraven {}; 1982227825Stheraven 1983227825Stheraventemplate <bool, class _Tp, class _A0, class _A1> 1984227825Stheravenstruct __is_constructible2_imp // false, _Tp is not a scalar 1985227825Stheraven : public common_type 1986227825Stheraven < 1987227825Stheraven decltype(__is_constructible2_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>())) 1988227825Stheraven >::type 1989227825Stheraven {}; 1990227825Stheraven 1991227825Stheraven// handle scalars and reference types 1992227825Stheraven 1993227825Stheraven// Scalars are default constructible, references are not 1994227825Stheraven 1995227825Stheraventemplate <class _Tp> 1996227825Stheravenstruct __is_constructible0_imp<true, _Tp> 1997227825Stheraven : public is_scalar<_Tp> 1998227825Stheraven {}; 1999227825Stheraven 2000227825Stheraventemplate <class _Tp, class _A0> 2001227825Stheravenstruct __is_constructible1_imp<true, _Tp, _A0> 2002227825Stheraven : public is_convertible<_A0, _Tp> 2003227825Stheraven {}; 2004227825Stheraven 2005227825Stheraventemplate <class _Tp, class _A0, class _A1> 2006227825Stheravenstruct __is_constructible2_imp<true, _Tp, _A0, _A1> 2007227825Stheraven : public false_type 2008227825Stheraven {}; 2009227825Stheraven 2010227825Stheraven// Treat scalars and reference types separately 2011227825Stheraven 2012227825Stheraventemplate <bool, class _Tp> 2013227825Stheravenstruct __is_constructible0_void_check 2014227825Stheraven : public __is_constructible0_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, 2015227825Stheraven _Tp> 2016227825Stheraven {}; 2017227825Stheraven 2018227825Stheraventemplate <bool, class _Tp, class _A0> 2019227825Stheravenstruct __is_constructible1_void_check 2020227825Stheraven : public __is_constructible1_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, 2021227825Stheraven _Tp, _A0> 2022227825Stheraven {}; 2023227825Stheraven 2024227825Stheraventemplate <bool, class _Tp, class _A0, class _A1> 2025227825Stheravenstruct __is_constructible2_void_check 2026227825Stheraven : public __is_constructible2_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, 2027227825Stheraven _Tp, _A0, _A1> 2028227825Stheraven {}; 2029227825Stheraven 2030227825Stheraven// If any of T or Args is void, is_constructible should be false 2031227825Stheraven 2032227825Stheraventemplate <class _Tp> 2033227825Stheravenstruct __is_constructible0_void_check<true, _Tp> 2034227825Stheraven : public false_type 2035227825Stheraven {}; 2036227825Stheraven 2037227825Stheraventemplate <class _Tp, class _A0> 2038227825Stheravenstruct __is_constructible1_void_check<true, _Tp, _A0> 2039227825Stheraven : public false_type 2040227825Stheraven {}; 2041227825Stheraven 2042227825Stheraventemplate <class _Tp, class _A0, class _A1> 2043227825Stheravenstruct __is_constructible2_void_check<true, _Tp, _A0, _A1> 2044227825Stheraven : public false_type 2045227825Stheraven {}; 2046227825Stheraven 2047227825Stheraven// is_constructible entry point 2048227825Stheraven 2049227825Stheravennamespace __is_construct 2050227825Stheraven{ 2051227825Stheraven 2052227825Stheravenstruct __nat {}; 2053227825Stheraven 2054227825Stheraven} 2055227825Stheraven 2056227825Stheraventemplate <class _Tp, class _A0 = __is_construct::__nat, 2057227825Stheraven class _A1 = __is_construct::__nat> 2058249998Sdimstruct _LIBCPP_TYPE_VIS is_constructible 2059227825Stheraven : public __is_constructible2_void_check<is_void<_Tp>::value 2060227825Stheraven || is_abstract<_Tp>::value 2061227825Stheraven || is_function<_Tp>::value 2062227825Stheraven || is_void<_A0>::value 2063227825Stheraven || is_void<_A1>::value, 2064227825Stheraven _Tp, _A0, _A1> 2065227825Stheraven {}; 2066227825Stheraven 2067227825Stheraventemplate <class _Tp> 2068249998Sdimstruct _LIBCPP_TYPE_VIS is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat> 2069227825Stheraven : public __is_constructible0_void_check<is_void<_Tp>::value 2070227825Stheraven || is_abstract<_Tp>::value 2071227825Stheraven || is_function<_Tp>::value, 2072227825Stheraven _Tp> 2073227825Stheraven {}; 2074227825Stheraven 2075227825Stheraventemplate <class _Tp, class _A0> 2076249998Sdimstruct _LIBCPP_TYPE_VIS is_constructible<_Tp, _A0, __is_construct::__nat> 2077227825Stheraven : public __is_constructible1_void_check<is_void<_Tp>::value 2078227825Stheraven || is_abstract<_Tp>::value 2079227825Stheraven || is_function<_Tp>::value 2080227825Stheraven || is_void<_A0>::value, 2081227825Stheraven _Tp, _A0> 2082227825Stheraven {}; 2083227825Stheraven 2084227825Stheraven// Array types are default constructible if their element type 2085227825Stheraven// is default constructible 2086227825Stheraven 2087232950Stheraventemplate <class _Ap, size_t _Np> 2088232950Stheravenstruct __is_constructible0_imp<false, _Ap[_Np]> 2089232950Stheraven : public is_constructible<typename remove_all_extents<_Ap>::type> 2090227825Stheraven {}; 2091227825Stheraven 2092232950Stheraventemplate <class _Ap, size_t _Np, class _A0> 2093232950Stheravenstruct __is_constructible1_imp<false, _Ap[_Np], _A0> 2094227825Stheraven : public false_type 2095227825Stheraven {}; 2096227825Stheraven 2097232950Stheraventemplate <class _Ap, size_t _Np, class _A0, class _A1> 2098232950Stheravenstruct __is_constructible2_imp<false, _Ap[_Np], _A0, _A1> 2099227825Stheraven : public false_type 2100227825Stheraven {}; 2101227825Stheraven 2102227825Stheraven// Incomplete array types are not constructible 2103227825Stheraven 2104232950Stheraventemplate <class _Ap> 2105232950Stheravenstruct __is_constructible0_imp<false, _Ap[]> 2106227825Stheraven : public false_type 2107227825Stheraven {}; 2108227825Stheraven 2109232950Stheraventemplate <class _Ap, class _A0> 2110232950Stheravenstruct __is_constructible1_imp<false, _Ap[], _A0> 2111227825Stheraven : public false_type 2112227825Stheraven {}; 2113227825Stheraven 2114232950Stheraventemplate <class _Ap, class _A0, class _A1> 2115232950Stheravenstruct __is_constructible2_imp<false, _Ap[], _A0, _A1> 2116227825Stheraven : public false_type 2117227825Stheraven {}; 2118227825Stheraven 2119227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2120227825Stheraven 2121227825Stheraven// is_default_constructible 2122227825Stheraven 2123227825Stheraventemplate <class _Tp> 2124249998Sdimstruct _LIBCPP_TYPE_VIS is_default_constructible 2125227825Stheraven : public is_constructible<_Tp> 2126227825Stheraven {}; 2127227825Stheraven 2128227825Stheraven// is_copy_constructible 2129227825Stheraven 2130227825Stheraventemplate <class _Tp> 2131249998Sdimstruct _LIBCPP_TYPE_VIS is_copy_constructible 2132227825Stheraven : public is_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> 2133227825Stheraven {}; 2134227825Stheraven 2135227825Stheraven// is_move_constructible 2136227825Stheraven 2137227825Stheraventemplate <class _Tp> 2138249998Sdimstruct _LIBCPP_TYPE_VIS is_move_constructible 2139227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2140227825Stheraven : public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> 2141227825Stheraven#else 2142227825Stheraven : public is_copy_constructible<_Tp> 2143227825Stheraven#endif 2144227825Stheraven {}; 2145227825Stheraven 2146227825Stheraven// is_trivially_constructible 2147227825Stheraven 2148227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 2149227825Stheraven 2150232950Stheraven#if __has_feature(is_trivially_constructible) 2151232950Stheraven 2152227825Stheraventemplate <class _Tp, class... _Args> 2153249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible 2154232950Stheraven : integral_constant<bool, __is_trivially_constructible(_Tp, _Args...)> 2155232950Stheraven{ 2156232950Stheraven}; 2157232950Stheraven 2158232950Stheraven#else // !__has_feature(is_trivially_constructible) 2159232950Stheraven 2160232950Stheraventemplate <class _Tp, class... _Args> 2161249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible 2162227825Stheraven : false_type 2163227825Stheraven{ 2164227825Stheraven}; 2165227825Stheraven 2166227825Stheraventemplate <class _Tp> 2167249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp> 2168227825Stheraven#if __has_feature(has_trivial_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2169227825Stheraven : integral_constant<bool, __has_trivial_constructor(_Tp)> 2170227825Stheraven#else 2171227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2172227825Stheraven#endif 2173227825Stheraven{ 2174227825Stheraven}; 2175227825Stheraven 2176227825Stheraventemplate <class _Tp> 2177227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2178249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp&&> 2179227825Stheraven#else 2180249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp> 2181227825Stheraven#endif 2182227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2183227825Stheraven{ 2184227825Stheraven}; 2185227825Stheraven 2186227825Stheraventemplate <class _Tp> 2187249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, const _Tp&> 2188227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2189227825Stheraven{ 2190227825Stheraven}; 2191227825Stheraven 2192227825Stheraventemplate <class _Tp> 2193249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp&> 2194227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2195227825Stheraven{ 2196227825Stheraven}; 2197227825Stheraven 2198232950Stheraven#endif // !__has_feature(is_trivially_constructible) 2199232950Stheraven 2200227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 2201227825Stheraven 2202227825Stheraventemplate <class _Tp, class _A0 = __is_construct::__nat, 2203227825Stheraven class _A1 = __is_construct::__nat> 2204249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible 2205227825Stheraven : false_type 2206227825Stheraven{ 2207227825Stheraven}; 2208227825Stheraven 2209232950Stheraven#if __has_feature(is_trivially_constructible) 2210232950Stheraven 2211227825Stheraventemplate <class _Tp> 2212249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, __is_construct::__nat, 2213227825Stheraven __is_construct::__nat> 2214232950Stheraven : integral_constant<bool, __is_trivially_constructible(_Tp)> 2215232950Stheraven{ 2216232950Stheraven}; 2217232950Stheraven 2218232950Stheraventemplate <class _Tp> 2219249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp, 2220232950Stheraven __is_construct::__nat> 2221232950Stheraven : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp)> 2222232950Stheraven{ 2223232950Stheraven}; 2224232950Stheraven 2225232950Stheraventemplate <class _Tp> 2226249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, const _Tp&, 2227232950Stheraven __is_construct::__nat> 2228232950Stheraven : integral_constant<bool, __is_trivially_constructible(_Tp, const _Tp&)> 2229232950Stheraven{ 2230232950Stheraven}; 2231232950Stheraven 2232232950Stheraventemplate <class _Tp> 2233249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp&, 2234232950Stheraven __is_construct::__nat> 2235232950Stheraven : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp&)> 2236232950Stheraven{ 2237232950Stheraven}; 2238232950Stheraven 2239232950Stheraven#else // !__has_feature(is_trivially_constructible) 2240232950Stheraven 2241232950Stheraventemplate <class _Tp> 2242249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, __is_construct::__nat, 2243232950Stheraven __is_construct::__nat> 2244227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2245227825Stheraven{ 2246227825Stheraven}; 2247227825Stheraven 2248227825Stheraventemplate <class _Tp> 2249249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp, 2250227825Stheraven __is_construct::__nat> 2251227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2252227825Stheraven{ 2253227825Stheraven}; 2254227825Stheraven 2255227825Stheraventemplate <class _Tp> 2256249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, const _Tp&, 2257227825Stheraven __is_construct::__nat> 2258227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2259227825Stheraven{ 2260227825Stheraven}; 2261227825Stheraven 2262227825Stheraventemplate <class _Tp> 2263249998Sdimstruct _LIBCPP_TYPE_VIS is_trivially_constructible<_Tp, _Tp&, 2264227825Stheraven __is_construct::__nat> 2265227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2266227825Stheraven{ 2267227825Stheraven}; 2268227825Stheraven 2269232950Stheraven#endif // !__has_feature(is_trivially_constructible) 2270232950Stheraven 2271227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2272227825Stheraven 2273227825Stheraven// is_trivially_default_constructible 2274227825Stheraven 2275249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_default_constructible 2276227825Stheraven : public is_trivially_constructible<_Tp> 2277227825Stheraven {}; 2278227825Stheraven 2279227825Stheraven// is_trivially_copy_constructible 2280227825Stheraven 2281249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_copy_constructible 2282227825Stheraven : public is_trivially_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> 2283227825Stheraven {}; 2284227825Stheraven 2285227825Stheraven// is_trivially_move_constructible 2286227825Stheraven 2287249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_move_constructible 2288227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2289227825Stheraven : public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> 2290227825Stheraven#else 2291227825Stheraven : public is_trivially_copy_constructible<_Tp> 2292227825Stheraven#endif 2293227825Stheraven {}; 2294227825Stheraven 2295227825Stheraven// is_trivially_assignable 2296227825Stheraven 2297232950Stheraven#if __has_feature(is_trivially_constructible) 2298232950Stheraven 2299227825Stheraventemplate <class _Tp, class _Arg> 2300227825Stheravenstruct is_trivially_assignable 2301232950Stheraven : integral_constant<bool, __is_trivially_assignable(_Tp, _Arg)> 2302232950Stheraven{ 2303232950Stheraven}; 2304232950Stheraven 2305232950Stheraven#else // !__has_feature(is_trivially_constructible) 2306232950Stheraven 2307232950Stheraventemplate <class _Tp, class _Arg> 2308232950Stheravenstruct is_trivially_assignable 2309227825Stheraven : public false_type {}; 2310227825Stheraven 2311227825Stheraventemplate <class _Tp> 2312227825Stheravenstruct is_trivially_assignable<_Tp&, _Tp> 2313227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2314227825Stheraven 2315227825Stheraventemplate <class _Tp> 2316227825Stheravenstruct is_trivially_assignable<_Tp&, _Tp&> 2317227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2318227825Stheraven 2319227825Stheraventemplate <class _Tp> 2320227825Stheravenstruct is_trivially_assignable<_Tp&, const _Tp&> 2321227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2322227825Stheraven 2323227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2324227825Stheraven 2325227825Stheraventemplate <class _Tp> 2326227825Stheravenstruct is_trivially_assignable<_Tp&, _Tp&&> 2327227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2328227825Stheraven 2329227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 2330227825Stheraven 2331232950Stheraven#endif // !__has_feature(is_trivially_constructible) 2332232950Stheraven 2333227825Stheraven// is_trivially_copy_assignable 2334227825Stheraven 2335249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_copy_assignable 2336227825Stheraven : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, 2337227825Stheraven const typename add_lvalue_reference<_Tp>::type> 2338227825Stheraven {}; 2339227825Stheraven 2340227825Stheraven// is_trivially_move_assignable 2341227825Stheraven 2342249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_move_assignable 2343227825Stheraven : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, 2344227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2345227825Stheraven typename add_rvalue_reference<_Tp>::type> 2346227825Stheraven#else 2347227825Stheraven typename add_lvalue_reference<_Tp>::type> 2348227825Stheraven#endif 2349227825Stheraven {}; 2350227825Stheraven 2351227825Stheraven// is_trivially_destructible 2352227825Stheraven 2353227825Stheraven#if __has_feature(has_trivial_destructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2354227825Stheraven 2355249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_destructible 2356227825Stheraven : public integral_constant<bool, __has_trivial_destructor(_Tp)> {}; 2357227825Stheraven 2358227825Stheraven#else // _LIBCPP_HAS_TYPE_TRAITS 2359227825Stheraven 2360227825Stheraventemplate <class _Tp> struct __libcpp_trivial_destructor 2361227825Stheraven : public integral_constant<bool, is_scalar<_Tp>::value || 2362227825Stheraven is_reference<_Tp>::value> {}; 2363227825Stheraven 2364249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_destructible 2365227825Stheraven : public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {}; 2366227825Stheraven 2367227825Stheraven#endif // _LIBCPP_HAS_TYPE_TRAITS 2368227825Stheraven 2369227825Stheraven// is_nothrow_constructible 2370227825Stheraven 2371227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 2372227825Stheraven 2373227825Stheraven#if __has_feature(cxx_noexcept) 2374227825Stheraven 2375227825Stheraventemplate <bool, class _Tp, class... _Args> struct __is_nothrow_constructible; 2376227825Stheraven 2377227825Stheraventemplate <class _Tp, class... _Args> 2378227825Stheravenstruct __is_nothrow_constructible<true, _Tp, _Args...> 2379227825Stheraven : public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))> 2380227825Stheraven{ 2381227825Stheraven}; 2382227825Stheraven 2383227825Stheraventemplate <class _Tp, class... _Args> 2384227825Stheravenstruct __is_nothrow_constructible<false, _Tp, _Args...> 2385227825Stheraven : public false_type 2386227825Stheraven{ 2387227825Stheraven}; 2388227825Stheraven 2389227825Stheraventemplate <class _Tp, class... _Args> 2390249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible 2391227825Stheraven : __is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, _Tp, _Args...> 2392227825Stheraven{ 2393227825Stheraven}; 2394227825Stheraven 2395227825Stheraventemplate <class _Tp, size_t _Ns> 2396249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp[_Ns]> 2397227825Stheraven : __is_nothrow_constructible<is_constructible<_Tp>::value, _Tp> 2398227825Stheraven{ 2399227825Stheraven}; 2400227825Stheraven 2401227825Stheraven#else // __has_feature(cxx_noexcept) 2402227825Stheraven 2403227825Stheraventemplate <class _Tp, class... _Args> 2404249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible 2405227825Stheraven : false_type 2406227825Stheraven{ 2407227825Stheraven}; 2408227825Stheraven 2409227825Stheraventemplate <class _Tp> 2410249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp> 2411227825Stheraven#if __has_feature(has_nothrow_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2412227825Stheraven : integral_constant<bool, __has_nothrow_constructor(_Tp)> 2413227825Stheraven#else 2414227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2415227825Stheraven#endif 2416227825Stheraven{ 2417227825Stheraven}; 2418227825Stheraven 2419227825Stheraventemplate <class _Tp> 2420227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2421249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, _Tp&&> 2422227825Stheraven#else 2423249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, _Tp> 2424227825Stheraven#endif 2425227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2426227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2427227825Stheraven#else 2428227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2429227825Stheraven#endif 2430227825Stheraven{ 2431227825Stheraven}; 2432227825Stheraven 2433227825Stheraventemplate <class _Tp> 2434249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, const _Tp&> 2435227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2436227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2437227825Stheraven#else 2438227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2439227825Stheraven#endif 2440227825Stheraven{ 2441227825Stheraven}; 2442227825Stheraven 2443227825Stheraventemplate <class _Tp> 2444249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, _Tp&> 2445227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2446227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2447227825Stheraven#else 2448227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2449227825Stheraven#endif 2450227825Stheraven{ 2451227825Stheraven}; 2452227825Stheraven 2453227825Stheraven#endif // __has_feature(cxx_noexcept) 2454227825Stheraven 2455227825Stheraven#else // _LIBCPP_HAS_NO_VARIADICS 2456227825Stheraven 2457227825Stheraventemplate <class _Tp, class _A0 = __is_construct::__nat, 2458227825Stheraven class _A1 = __is_construct::__nat> 2459249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible 2460227825Stheraven : false_type 2461227825Stheraven{ 2462227825Stheraven}; 2463227825Stheraven 2464227825Stheraventemplate <class _Tp> 2465249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, __is_construct::__nat, 2466227825Stheraven __is_construct::__nat> 2467227825Stheraven#if __has_feature(has_nothrow_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2468227825Stheraven : integral_constant<bool, __has_nothrow_constructor(_Tp)> 2469227825Stheraven#else 2470227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2471227825Stheraven#endif 2472227825Stheraven{ 2473227825Stheraven}; 2474227825Stheraven 2475227825Stheraventemplate <class _Tp> 2476249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, _Tp, 2477227825Stheraven __is_construct::__nat> 2478227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2479227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2480227825Stheraven#else 2481227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2482227825Stheraven#endif 2483227825Stheraven{ 2484227825Stheraven}; 2485227825Stheraven 2486227825Stheraventemplate <class _Tp> 2487249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, const _Tp&, 2488227825Stheraven __is_construct::__nat> 2489227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2490227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2491227825Stheraven#else 2492227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2493227825Stheraven#endif 2494227825Stheraven{ 2495227825Stheraven}; 2496227825Stheraven 2497227825Stheraventemplate <class _Tp> 2498249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_constructible<_Tp, _Tp&, 2499227825Stheraven __is_construct::__nat> 2500227825Stheraven#if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2501227825Stheraven : integral_constant<bool, __has_nothrow_copy(_Tp)> 2502227825Stheraven#else 2503227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> 2504227825Stheraven#endif 2505227825Stheraven{ 2506227825Stheraven}; 2507227825Stheraven 2508227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2509227825Stheraven 2510227825Stheraven// is_nothrow_default_constructible 2511227825Stheraven 2512249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_nothrow_default_constructible 2513227825Stheraven : public is_nothrow_constructible<_Tp> 2514227825Stheraven {}; 2515227825Stheraven 2516227825Stheraven// is_nothrow_copy_constructible 2517227825Stheraven 2518249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_nothrow_copy_constructible 2519227825Stheraven : public is_nothrow_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> 2520227825Stheraven {}; 2521227825Stheraven 2522227825Stheraven// is_nothrow_move_constructible 2523227825Stheraven 2524249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_nothrow_move_constructible 2525227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2526227825Stheraven : public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> 2527227825Stheraven#else 2528227825Stheraven : public is_nothrow_copy_constructible<_Tp> 2529227825Stheraven#endif 2530227825Stheraven {}; 2531227825Stheraven 2532227825Stheraven// is_nothrow_assignable 2533227825Stheraven 2534227825Stheraven#if __has_feature(cxx_noexcept) 2535227825Stheraven 2536227825Stheraventemplate <bool, class _Tp, class _Arg> struct __is_nothrow_assignable; 2537227825Stheraven 2538227825Stheraventemplate <class _Tp, class _Arg> 2539227825Stheravenstruct __is_nothrow_assignable<false, _Tp, _Arg> 2540227825Stheraven : public false_type 2541227825Stheraven{ 2542227825Stheraven}; 2543227825Stheraven 2544227825Stheraventemplate <class _Tp, class _Arg> 2545227825Stheravenstruct __is_nothrow_assignable<true, _Tp, _Arg> 2546227825Stheraven : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>()) > 2547227825Stheraven{ 2548227825Stheraven}; 2549227825Stheraven 2550227825Stheraventemplate <class _Tp, class _Arg> 2551249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_assignable 2552227825Stheraven : public __is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg> 2553227825Stheraven{ 2554227825Stheraven}; 2555227825Stheraven 2556227825Stheraven#else // __has_feature(cxx_noexcept) 2557227825Stheraven 2558227825Stheraventemplate <class _Tp, class _Arg> 2559249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_assignable 2560227825Stheraven : public false_type {}; 2561227825Stheraven 2562227825Stheraventemplate <class _Tp> 2563249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_assignable<_Tp&, _Tp> 2564227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2565227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2566227825Stheraven#else 2567227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2568227825Stheraven#endif 2569227825Stheraven 2570227825Stheraventemplate <class _Tp> 2571249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_assignable<_Tp&, _Tp&> 2572227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2573227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2574227825Stheraven#else 2575227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2576227825Stheraven#endif 2577227825Stheraven 2578227825Stheraventemplate <class _Tp> 2579249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_assignable<_Tp&, const _Tp&> 2580227825Stheraven#if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2581227825Stheraven : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; 2582227825Stheraven#else 2583227825Stheraven : integral_constant<bool, is_scalar<_Tp>::value> {}; 2584227825Stheraven#endif 2585227825Stheraven 2586227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2587227825Stheraven 2588227825Stheraventemplate <class _Tp> 2589227825Stheravenstruct 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 2596227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 2597227825Stheraven 2598227825Stheraven#endif // __has_feature(cxx_noexcept) 2599227825Stheraven 2600227825Stheraven// is_nothrow_copy_assignable 2601227825Stheraven 2602249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_nothrow_copy_assignable 2603227825Stheraven : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, 2604227825Stheraven const typename add_lvalue_reference<_Tp>::type> 2605227825Stheraven {}; 2606227825Stheraven 2607227825Stheraven// is_nothrow_move_assignable 2608227825Stheraven 2609249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_nothrow_move_assignable 2610227825Stheraven : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, 2611227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2612227825Stheraven typename add_rvalue_reference<_Tp>::type> 2613227825Stheraven#else 2614227825Stheraven typename add_lvalue_reference<_Tp>::type> 2615227825Stheraven#endif 2616227825Stheraven {}; 2617227825Stheraven 2618227825Stheraven// is_nothrow_destructible 2619227825Stheraven 2620227825Stheraven#if __has_feature(cxx_noexcept) 2621227825Stheraven 2622227825Stheraventemplate <bool, class _Tp> struct __is_nothrow_destructible; 2623227825Stheraven 2624227825Stheraventemplate <class _Tp> 2625227825Stheravenstruct __is_nothrow_destructible<false, _Tp> 2626227825Stheraven : public false_type 2627227825Stheraven{ 2628227825Stheraven}; 2629227825Stheraven 2630227825Stheraventemplate <class _Tp> 2631227825Stheravenstruct __is_nothrow_destructible<true, _Tp> 2632227825Stheraven : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>().~_Tp()) > 2633227825Stheraven{ 2634227825Stheraven}; 2635227825Stheraven 2636227825Stheraventemplate <class _Tp> 2637249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_destructible 2638227825Stheraven : public __is_nothrow_destructible<is_destructible<_Tp>::value, _Tp> 2639227825Stheraven{ 2640227825Stheraven}; 2641227825Stheraven 2642227825Stheraventemplate <class _Tp, size_t _Ns> 2643249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_destructible<_Tp[_Ns]> 2644227825Stheraven : public is_nothrow_destructible<_Tp> 2645227825Stheraven{ 2646227825Stheraven}; 2647227825Stheraven 2648227825Stheraventemplate <class _Tp> 2649249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_destructible<_Tp&> 2650227825Stheraven : public true_type 2651227825Stheraven{ 2652227825Stheraven}; 2653227825Stheraven 2654227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2655227825Stheraven 2656227825Stheraventemplate <class _Tp> 2657249998Sdimstruct _LIBCPP_TYPE_VIS is_nothrow_destructible<_Tp&&> 2658227825Stheraven : public true_type 2659227825Stheraven{ 2660227825Stheraven}; 2661227825Stheraven 2662227825Stheraven#endif 2663227825Stheraven 2664227825Stheraven#else 2665227825Stheraven 2666227825Stheraventemplate <class _Tp> struct __libcpp_nothrow_destructor 2667227825Stheraven : public integral_constant<bool, is_scalar<_Tp>::value || 2668227825Stheraven is_reference<_Tp>::value> {}; 2669227825Stheraven 2670249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_nothrow_destructible 2671227825Stheraven : public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {}; 2672227825Stheraven 2673227825Stheraven#endif 2674227825Stheraven 2675227825Stheraven// is_pod 2676227825Stheraven 2677227825Stheraven#if __has_feature(is_pod) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) 2678227825Stheraven 2679249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_pod 2680227825Stheraven : public integral_constant<bool, __is_pod(_Tp)> {}; 2681227825Stheraven 2682227825Stheraven#else // _LIBCPP_HAS_TYPE_TRAITS 2683227825Stheraven 2684249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_pod 2685227825Stheraven : public integral_constant<bool, is_trivially_default_constructible<_Tp>::value && 2686227825Stheraven is_trivially_copy_constructible<_Tp>::value && 2687227825Stheraven is_trivially_copy_assignable<_Tp>::value && 2688227825Stheraven is_trivially_destructible<_Tp>::value> {}; 2689227825Stheraven 2690227825Stheraven#endif // _LIBCPP_HAS_TYPE_TRAITS 2691227825Stheraven 2692227825Stheraven// is_literal_type; 2693227825Stheraven 2694249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_literal_type 2695227825Stheraven#if __has_feature(is_literal) 2696227825Stheraven : public integral_constant<bool, __is_literal(_Tp)> 2697227825Stheraven#else 2698227825Stheraven : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value || 2699227825Stheraven is_reference<typename remove_all_extents<_Tp>::type>::value> 2700227825Stheraven#endif 2701227825Stheraven {}; 2702227825Stheraven 2703227825Stheraven// is_standard_layout; 2704227825Stheraven 2705249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_standard_layout 2706227825Stheraven#if __has_feature(is_standard_layout) 2707227825Stheraven : public integral_constant<bool, __is_standard_layout(_Tp)> 2708227825Stheraven#else 2709227825Stheraven : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> 2710227825Stheraven#endif 2711227825Stheraven {}; 2712227825Stheraven 2713227825Stheraven// is_trivially_copyable; 2714227825Stheraven 2715249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivially_copyable 2716227825Stheraven#if __has_feature(is_trivially_copyable) 2717227825Stheraven : public integral_constant<bool, __is_trivially_copyable(_Tp)> 2718227825Stheraven#else 2719227825Stheraven : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> 2720227825Stheraven#endif 2721227825Stheraven {}; 2722227825Stheraven 2723227825Stheraven// is_trivial; 2724227825Stheraven 2725249998Sdimtemplate <class _Tp> struct _LIBCPP_TYPE_VIS is_trivial 2726227825Stheraven#if __has_feature(is_trivial) 2727227825Stheraven : public integral_constant<bool, __is_trivial(_Tp)> 2728227825Stheraven#else 2729227825Stheraven : integral_constant<bool, is_trivially_copyable<_Tp>::value && 2730227825Stheraven is_trivially_default_constructible<_Tp>::value> 2731227825Stheraven#endif 2732227825Stheraven {}; 2733227825Stheraven 2734227825Stheraven#ifndef _LIBCPP_HAS_NO_VARIADICS 2735227825Stheraven 2736227825Stheraven// Check for complete types 2737227825Stheraven 2738232950Stheraventemplate <class ..._Tp> struct __check_complete; 2739227825Stheraven 2740227825Stheraventemplate <> 2741227825Stheravenstruct __check_complete<> 2742227825Stheraven{ 2743227825Stheraven}; 2744227825Stheraven 2745232950Stheraventemplate <class _Hp, class _T0, class ..._Tp> 2746232950Stheravenstruct __check_complete<_Hp, _T0, _Tp...> 2747232950Stheraven : private __check_complete<_Hp>, 2748232950Stheraven private __check_complete<_T0, _Tp...> 2749227825Stheraven{ 2750227825Stheraven}; 2751227825Stheraven 2752232950Stheraventemplate <class _Hp> 2753232950Stheravenstruct __check_complete<_Hp, _Hp> 2754232950Stheraven : private __check_complete<_Hp> 2755227825Stheraven{ 2756227825Stheraven}; 2757227825Stheraven 2758232950Stheraventemplate <class _Tp> 2759232950Stheravenstruct __check_complete<_Tp> 2760227825Stheraven{ 2761232950Stheraven static_assert(sizeof(_Tp) > 0, "Type must be complete."); 2762227825Stheraven}; 2763227825Stheraven 2764232950Stheraventemplate <class _Tp> 2765232950Stheravenstruct __check_complete<_Tp&> 2766232950Stheraven : private __check_complete<_Tp> 2767227825Stheraven{ 2768227825Stheraven}; 2769227825Stheraven 2770232950Stheraventemplate <class _Tp> 2771232950Stheravenstruct __check_complete<_Tp&&> 2772232950Stheraven : private __check_complete<_Tp> 2773227825Stheraven{ 2774227825Stheraven}; 2775227825Stheraven 2776232950Stheraventemplate <class _Rp, class ..._Param> 2777232950Stheravenstruct __check_complete<_Rp (*)(_Param...)> 2778241903Sdim : private __check_complete<_Rp> 2779227825Stheraven{ 2780227825Stheraven}; 2781227825Stheraven 2782232950Stheraventemplate <class _Rp, class ..._Param> 2783232950Stheravenstruct __check_complete<_Rp (_Param...)> 2784241903Sdim : private __check_complete<_Rp> 2785227825Stheraven{ 2786227825Stheraven}; 2787227825Stheraven 2788232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2789232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...)> 2790241903Sdim : private __check_complete<_Class> 2791227825Stheraven{ 2792227825Stheraven}; 2793227825Stheraven 2794232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2795232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) const> 2796241903Sdim : private __check_complete<_Class> 2797227825Stheraven{ 2798227825Stheraven}; 2799227825Stheraven 2800232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2801232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) volatile> 2802241903Sdim : private __check_complete<_Class> 2803227825Stheraven{ 2804227825Stheraven}; 2805227825Stheraven 2806232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2807232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) const volatile> 2808241903Sdim : private __check_complete<_Class> 2809227825Stheraven{ 2810227825Stheraven}; 2811227825Stheraven 2812227825Stheraven#if __has_feature(cxx_reference_qualified_functions) 2813227825Stheraven 2814232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2815232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) &> 2816241903Sdim : private __check_complete<_Class> 2817227825Stheraven{ 2818227825Stheraven}; 2819227825Stheraven 2820232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2821232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) const&> 2822241903Sdim : private __check_complete<_Class> 2823227825Stheraven{ 2824227825Stheraven}; 2825227825Stheraven 2826232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2827232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) volatile&> 2828241903Sdim : private __check_complete<_Class> 2829227825Stheraven{ 2830227825Stheraven}; 2831227825Stheraven 2832232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2833232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) const volatile&> 2834241903Sdim : private __check_complete<_Class> 2835227825Stheraven{ 2836227825Stheraven}; 2837227825Stheraven 2838232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2839232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) &&> 2840241903Sdim : private __check_complete<_Class> 2841227825Stheraven{ 2842227825Stheraven}; 2843227825Stheraven 2844232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2845232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) const&&> 2846241903Sdim : private __check_complete<_Class> 2847227825Stheraven{ 2848227825Stheraven}; 2849227825Stheraven 2850232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2851232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) volatile&&> 2852241903Sdim : private __check_complete<_Class> 2853227825Stheraven{ 2854227825Stheraven}; 2855227825Stheraven 2856232950Stheraventemplate <class _Rp, class _Class, class ..._Param> 2857232950Stheravenstruct __check_complete<_Rp (_Class::*)(_Param...) const volatile&&> 2858241903Sdim : private __check_complete<_Class> 2859227825Stheraven{ 2860227825Stheraven}; 2861227825Stheraven 2862227825Stheraven#endif 2863227825Stheraven 2864232950Stheraventemplate <class _Rp, class _Class> 2865232950Stheravenstruct __check_complete<_Rp _Class::*> 2866227825Stheraven : private __check_complete<_Class> 2867227825Stheraven{ 2868227825Stheraven}; 2869227825Stheraven 2870227825Stheraven// __invoke forward declarations 2871227825Stheraven 2872227825Stheraven// fall back - none of the bullets 2873227825Stheraven 2874227825Stheraventemplate <class ..._Args> 2875227825Stheravenauto 2876227825Stheraven__invoke(__any, _Args&& ...__args) 2877227825Stheraven -> __nat; 2878227825Stheraven 2879227825Stheraven// bullets 1 and 2 2880227825Stheraven 2881232950Stheraventemplate <class _Fp, class _A0, class ..._Args> 2882241903Sdim_LIBCPP_INLINE_VISIBILITY 2883227825Stheravenauto 2884232950Stheraven__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args) 2885227825Stheraven -> decltype((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...)); 2886227825Stheraven 2887232950Stheraventemplate <class _Fp, class _A0, class ..._Args> 2888241903Sdim_LIBCPP_INLINE_VISIBILITY 2889227825Stheravenauto 2890232950Stheraven__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args) 2891227825Stheraven -> decltype(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...)); 2892227825Stheraven 2893227825Stheraven// bullets 3 and 4 2894227825Stheraven 2895232950Stheraventemplate <class _Fp, class _A0> 2896241903Sdim_LIBCPP_INLINE_VISIBILITY 2897227825Stheravenauto 2898232950Stheraven__invoke(_Fp&& __f, _A0&& __a0) 2899227825Stheraven -> decltype(_VSTD::forward<_A0>(__a0).*__f); 2900227825Stheraven 2901232950Stheraventemplate <class _Fp, class _A0> 2902241903Sdim_LIBCPP_INLINE_VISIBILITY 2903227825Stheravenauto 2904232950Stheraven__invoke(_Fp&& __f, _A0&& __a0) 2905227825Stheraven -> decltype((*_VSTD::forward<_A0>(__a0)).*__f); 2906227825Stheraven 2907227825Stheraven// bullet 5 2908227825Stheraven 2909232950Stheraventemplate <class _Fp, class ..._Args> 2910241903Sdim_LIBCPP_INLINE_VISIBILITY 2911227825Stheravenauto 2912232950Stheraven__invoke(_Fp&& __f, _Args&& ...__args) 2913232950Stheraven -> decltype(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...)); 2914227825Stheraven 2915227825Stheraven// __invokable 2916227825Stheraven 2917232950Stheraventemplate <class _Fp, class ..._Args> 2918227825Stheravenstruct __invokable_imp 2919241903Sdim : private __check_complete<_Fp> 2920227825Stheraven{ 2921227825Stheraven typedef decltype( 2922232950Stheraven __invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...) 2923227825Stheraven ) type; 2924227825Stheraven static const bool value = !is_same<type, __nat>::value; 2925227825Stheraven}; 2926227825Stheraven 2927232950Stheraventemplate <class _Fp, class ..._Args> 2928227825Stheravenstruct __invokable 2929227825Stheraven : public integral_constant<bool, 2930232950Stheraven __invokable_imp<_Fp, _Args...>::value> 2931227825Stheraven{ 2932227825Stheraven}; 2933227825Stheraven 2934227825Stheraven// __invoke_of 2935227825Stheraven 2936232950Stheraventemplate <bool _Invokable, class _Fp, class ..._Args> 2937227825Stheravenstruct __invoke_of_imp // false 2938227825Stheraven{ 2939227825Stheraven}; 2940227825Stheraven 2941232950Stheraventemplate <class _Fp, class ..._Args> 2942232950Stheravenstruct __invoke_of_imp<true, _Fp, _Args...> 2943227825Stheraven{ 2944232950Stheraven typedef typename __invokable_imp<_Fp, _Args...>::type type; 2945227825Stheraven}; 2946227825Stheraven 2947232950Stheraventemplate <class _Fp, class ..._Args> 2948227825Stheravenstruct __invoke_of 2949232950Stheraven : public __invoke_of_imp<__invokable<_Fp, _Args...>::value, _Fp, _Args...> 2950227825Stheraven{ 2951227825Stheraven}; 2952227825Stheraven 2953241903Sdimtemplate <class _Fp, class ..._Args> 2954249998Sdimclass _LIBCPP_TYPE_VIS result_of<_Fp(_Args...)> 2955241903Sdim : public __invoke_of<_Fp, _Args...> 2956241903Sdim{ 2957241903Sdim}; 2958241903Sdim 2959227825Stheraven#endif // _LIBCPP_HAS_NO_VARIADICS 2960227825Stheraven 2961227825Stheraventemplate <class _Tp> 2962227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 2963227825Stheraven#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE 2964227825Stheraventypename enable_if 2965227825Stheraven< 2966227825Stheraven is_move_constructible<_Tp>::value && 2967227825Stheraven is_move_assignable<_Tp>::value 2968227825Stheraven>::type 2969227825Stheraven#else 2970227825Stheravenvoid 2971227825Stheraven#endif 2972227825Stheravenswap(_Tp& __x, _Tp& __y) _NOEXCEPT_(is_nothrow_move_constructible<_Tp>::value && 2973227825Stheraven is_nothrow_move_assignable<_Tp>::value) 2974227825Stheraven{ 2975227825Stheraven _Tp __t(_VSTD::move(__x)); 2976227825Stheraven __x = _VSTD::move(__y); 2977227825Stheraven __y = _VSTD::move(__t); 2978227825Stheraven} 2979227825Stheraven 2980227825Stheraventemplate <class _ForwardIterator1, class _ForwardIterator2> 2981227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 2982227825Stheravenvoid 2983227825Stheraveniter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b) 2984227825Stheraven // _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b))) 2985227825Stheraven _NOEXCEPT_(_NOEXCEPT_(swap(*_VSTD::declval<_ForwardIterator1>(), 2986227825Stheraven *_VSTD::declval<_ForwardIterator2>()))) 2987227825Stheraven{ 2988227825Stheraven swap(*__a, *__b); 2989227825Stheraven} 2990227825Stheraven 2991227825Stheraven// __swappable 2992227825Stheraven 2993227825Stheravennamespace __detail 2994227825Stheraven{ 2995227825Stheraven 2996227825Stheravenusing _VSTD::swap; 2997227825Stheraven__nat swap(__any, __any); 2998227825Stheraven 2999227825Stheraventemplate <class _Tp> 3000227825Stheravenstruct __swappable 3001227825Stheraven{ 3002227825Stheraven typedef decltype(swap(_VSTD::declval<_Tp&>(), _VSTD::declval<_Tp&>())) type; 3003227825Stheraven static const bool value = !is_same<type, __nat>::value; 3004227825Stheraven}; 3005227825Stheraven 3006227825Stheraven} // __detail 3007227825Stheraven 3008227825Stheraventemplate <class _Tp> 3009227825Stheravenstruct __is_swappable 3010227825Stheraven : public integral_constant<bool, __detail::__swappable<_Tp>::value> 3011227825Stheraven{ 3012227825Stheraven}; 3013227825Stheraven 3014227825Stheraven#if __has_feature(cxx_noexcept) 3015227825Stheraven 3016227825Stheraventemplate <bool, class _Tp> 3017227825Stheravenstruct __is_nothrow_swappable_imp 3018227825Stheraven : public integral_constant<bool, noexcept(swap(_VSTD::declval<_Tp&>(), 3019227825Stheraven _VSTD::declval<_Tp&>()))> 3020227825Stheraven{ 3021227825Stheraven}; 3022227825Stheraven 3023227825Stheraventemplate <class _Tp> 3024227825Stheravenstruct __is_nothrow_swappable_imp<false, _Tp> 3025227825Stheraven : public false_type 3026227825Stheraven{ 3027227825Stheraven}; 3028227825Stheraven 3029227825Stheraventemplate <class _Tp> 3030227825Stheravenstruct __is_nothrow_swappable 3031227825Stheraven : public __is_nothrow_swappable_imp<__is_swappable<_Tp>::value, _Tp> 3032227825Stheraven{ 3033227825Stheraven}; 3034227825Stheraven 3035227825Stheraven#else // __has_feature(cxx_noexcept) 3036227825Stheraven 3037227825Stheraventemplate <class _Tp> 3038227825Stheravenstruct __is_nothrow_swappable 3039227825Stheraven : public false_type 3040227825Stheraven{ 3041227825Stheraven}; 3042227825Stheraven 3043227825Stheraven#endif // __has_feature(cxx_noexcept) 3044227825Stheraven 3045227825Stheraven#ifdef _LIBCXX_UNDERLYING_TYPE 3046227825Stheraven 3047227825Stheraventemplate <class _Tp> 3048227825Stheravenstruct underlying_type 3049227825Stheraven{ 3050227825Stheraven typedef _LIBCXX_UNDERLYING_TYPE(_Tp) type; 3051227825Stheraven}; 3052227825Stheraven 3053227825Stheraven#else // _LIBCXX_UNDERLYING_TYPE 3054227825Stheraven 3055227825Stheraventemplate <class _Tp, bool _Support = false> 3056227825Stheravenstruct underlying_type 3057227825Stheraven{ 3058227825Stheraven static_assert(_Support, "The underyling_type trait requires compiler " 3059227825Stheraven "support. Either no such support exists or " 3060227825Stheraven "libc++ does not know how to use it."); 3061227825Stheraven}; 3062227825Stheraven 3063227825Stheraven#endif // _LIBCXX_UNDERLYING_TYPE 3064227825Stheraven 3065227825Stheraven_LIBCPP_END_NAMESPACE_STD 3066227825Stheraven 3067227825Stheraven#endif // _LIBCPP_TYPE_TRAITS 3068