1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_ITERATOR 11#define _LIBCPP_ITERATOR 12 13/* 14 iterator synopsis 15 16#include <concepts> 17 18namespace std 19{ 20template<class> struct incrementable_traits; // since C++20 21template<class T> 22 using iter_difference_t = see below; // since C++20 23 24template<class> struct indirectly_readable_traits; // since C++20 25template<class T> 26 using iter_value_t = see below; // since C++20 27 28template<class Iterator> 29struct iterator_traits; 30 31template<class T> 32 requires is_object_v<T> // since C++20 33struct iterator_traits<T*>; 34 35template<dereferenceable T> 36 using iter_reference_t = decltype(*declval<T&>()); 37 38namespace ranges::inline unspecified { 39 inline constexpr unspecified iter_move = unspecified; // since C++20, nodiscard as an extension 40}} 41 42template<dereferenceable T> 43 requires ... 44using iter_rvalue_reference_t = decltype(ranges::iter_move(declval<T&>())); // since C++20 45 46// [iterator.concepts], iterator concepts 47// [iterator.concept.readable], concept indirectly_readable 48template<class In> 49 concept indirectly_readable = see below; // since C++20 50 51template<indirectly_readable T> 52 using iter_common_reference_t = 53 common_reference_t<iter_reference_t<T>, iter_value_t<T>&>; // since C++20 54 55// [iterator.concept.writable], concept indirectly_writable 56template<class Out, class T> 57 concept indirectly_writable = see below; // since C++20 58 59// [iterator.concept.winc], concept weakly_incrementable 60template<class I> 61 concept weakly_incrementable = see below; // since C++20 62 63// [iterator.concept.inc], concept incrementable 64template<class I> 65 concept incrementable = see below; // since C++20 66 67// [iterator.concept.iterator], concept input_or_output_iterator 68 template<class I> 69 concept input_or_output_iterator = see below; // since C++20 70 71// [iterator.concept.sentinel], concept sentinel_for 72template<class S, class I> 73 concept sentinel_for = see below; // since C++20 74 75// [iterator.concept.sizedsentinel], concept sized_sentinel_for 76template<class S, class I> 77 inline constexpr bool disable_sized_sentinel_for = false; 78 79template<class S, class I> 80 concept sized_sentinel_for = see below; 81 82// [iterator.concept.input], concept input_iterator 83template<class I> 84 concept input_iterator = see below; // since C++20 85 86// [iterator.concept.output], concept output_iterator 87template<class I, class T> 88 concept output_iterator = see below; // since C++20 89 90// [iterator.concept.forward], concept forward_iterator 91template<class I> 92 concept forward_iterator = see below; // since C++20 93 94// [iterator.concept.bidir], concept bidirectional_iterator 95template<class I> 96 concept bidirectional_iterator = see below; // since C++20 97 98// [iterator.concept.random.access], concept random_access_iterator 99template<class I> 100 concept random_access_iterator = see below; // since C++20 101 102// [indirectcallable] 103// [indirectcallable.indirectinvocable] 104template<class F, class I> 105 concept indirectly_unary_invocable = see below; // since C++20 106 107template<class F, class I> 108 concept indirectly_regular_unary_invocable = see below; // since C++20 109 110template<class F, class I> 111 concept indirect_unary_predicate = see below; // since C++20 112 113template<class F, class I1, class I2> 114 concept indirect_binary_predicate = see below; // since C++20 115 116template<class F, class I1, class I2 = I1> 117 concept indirect_equivalence_relation = see below; // since C++20 118 119template<class F, class I1, class I2 = I1> 120 concept indirect_strict_weak_order = see below; // since C++20 121 122template<class F, class... Is> 123 using indirect_result_t = see below; // since C++20 124 125// [projected], projected 126template<indirectly_readable I, indirectly_regular_unary_invocable<I> Proj> 127 struct projected; // since C++20 128 129template<weakly_incrementable I, indirectly_regular_unary_invocable<I> Proj> 130 struct incrementable_traits<projected<I, Proj>>; // since C++20 131 132// [alg.req.ind.move], concept indirectly_movable 133template<class In, class Out> 134 concept indirectly_movable = see below; // since C++20 135 136template<class In, class Out> 137 concept indirectly_movable_storable = see below; // since C++20 138 139// [alg.req.ind.copy], concept indirectly_copyable 140template<class In, class Out> 141 concept indirectly_copyable = see below; // since C++20 142 143template<class In, class Out> 144 concept indirectly_copyable_storable = see below; // since C++20 145 146// [alg.req.ind.swap], concept indirectly_swappable 147template<class I1, class I2 = I1> 148 concept indirectly_swappable = see below; // since C++20 149 150// [alg.req.permutable], concept permutable // since C++20 151template<class I> 152 concept permutable = see below; 153 154template<class I1, class I2, class R, class P1 = identity, 155 class P2 = identity> 156 concept indirectly_comparable = 157 indirect_binary_predicate<R, projected<I1, P1>, projected<I2, P2>>; // since C++20 158 159template<input_or_output_iterator I, sentinel_for<I> S> 160 requires (!same_as<I, S> && copyable<I>) 161class common_iterator; // since C++20 162 163template<class Category, class T, class Distance = ptrdiff_t, 164 class Pointer = T*, class Reference = T&> 165struct iterator // deprecated in C++17 166{ 167 typedef T value_type; 168 typedef Distance difference_type; 169 typedef Pointer pointer; 170 typedef Reference reference; 171 typedef Category iterator_category; 172}; 173 174struct input_iterator_tag {}; 175struct output_iterator_tag {}; 176struct forward_iterator_tag : public input_iterator_tag {}; 177struct bidirectional_iterator_tag : public forward_iterator_tag {}; 178struct random_access_iterator_tag : public bidirectional_iterator_tag {}; 179struct contiguous_iterator_tag : public random_access_iterator_tag {}; 180 181// 27.4.3, iterator operations 182template <class InputIterator, class Distance> // constexpr in C++17 183 constexpr void advance(InputIterator& i, Distance n); 184 185template <class InputIterator> // constexpr in C++17 186 constexpr typename iterator_traits<InputIterator>::difference_type 187 distance(InputIterator first, InputIterator last); 188 189template <class InputIterator> // constexpr in C++17 190 constexpr InputIterator next(InputIterator x, 191typename iterator_traits<InputIterator>::difference_type n = 1); 192 193template <class BidirectionalIterator> // constexpr in C++17 194 constexpr BidirectionalIterator prev(BidirectionalIterator x, 195 typename iterator_traits<BidirectionalIterator>::difference_type n = 1); 196 197// [range.iter.ops], range iterator operations 198namespace ranges { 199 // [range.iter.op.advance], ranges::advance 200 template<input_or_output_iterator I> 201 constexpr void advance(I& i, iter_difference_t<I> n); // since C++20 202 template<input_or_output_iterator I, sentinel_for<I> S> 203 constexpr void advance(I& i, S bound); // since C++20 204 template<input_or_output_iterator I, sentinel_for<I> S> 205 constexpr iter_difference_t<I> advance(I& i, iter_difference_t<I> n, S bound); // since C++20 206} 207 208template <class Iterator> 209class reverse_iterator 210 : public iterator<typename iterator_traits<Iterator>::iterator_category, // until C++17 211 typename iterator_traits<Iterator>::value_type, 212 typename iterator_traits<Iterator>::difference_type, 213 typename iterator_traits<Iterator>::pointer, 214 typename iterator_traits<Iterator>::reference> 215{ 216protected: 217 Iterator current; 218public: 219 typedef Iterator iterator_type; 220 typedef typename iterator_traits<Iterator>::difference_type difference_type; 221 typedef typename iterator_traits<Iterator>::reference reference; 222 typedef typename iterator_traits<Iterator>::pointer pointer; 223 224 constexpr reverse_iterator(); 225 constexpr explicit reverse_iterator(Iterator x); 226 template <class U> constexpr reverse_iterator(const reverse_iterator<U>& u); 227 template <class U> constexpr reverse_iterator& operator=(const reverse_iterator<U>& u); 228 constexpr Iterator base() const; 229 constexpr reference operator*() const; 230 constexpr pointer operator->() const; 231 constexpr reverse_iterator& operator++(); 232 constexpr reverse_iterator operator++(int); 233 constexpr reverse_iterator& operator--(); 234 constexpr reverse_iterator operator--(int); 235 constexpr reverse_iterator operator+ (difference_type n) const; 236 constexpr reverse_iterator& operator+=(difference_type n); 237 constexpr reverse_iterator operator- (difference_type n) const; 238 constexpr reverse_iterator& operator-=(difference_type n); 239 constexpr reference operator[](difference_type n) const; 240}; 241 242template <class Iterator1, class Iterator2> 243constexpr bool // constexpr in C++17 244operator==(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); 245 246template <class Iterator1, class Iterator2> 247constexpr bool // constexpr in C++17 248operator<(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); 249 250template <class Iterator1, class Iterator2> 251constexpr bool // constexpr in C++17 252operator!=(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); 253 254template <class Iterator1, class Iterator2> 255constexpr bool // constexpr in C++17 256operator>(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); 257 258template <class Iterator1, class Iterator2> 259constexpr bool // constexpr in C++17 260operator>=(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); 261 262template <class Iterator1, class Iterator2> 263constexpr bool // constexpr in C++17 264operator<=(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); 265 266template <class Iterator1, class Iterator2> 267constexpr auto 268operator-(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y) 269-> decltype(__y.base() - __x.base()); // constexpr in C++17 270 271template <class Iterator> 272constexpr reverse_iterator<Iterator> 273operator+(typename reverse_iterator<Iterator>::difference_type n, 274 const reverse_iterator<Iterator>& x); // constexpr in C++17 275 276template <class Iterator> 277constexpr reverse_iterator<Iterator> make_reverse_iterator(Iterator i); // C++14, constexpr in C++17 278 279template <class Container> 280class back_insert_iterator 281 : public iterator<output_iterator_tag, void, void, void, void> // until C++17 282{ 283protected: 284 Container* container; 285public: 286 typedef Container container_type; 287 typedef void value_type; 288 typedef void difference_type; // until C++20 289 typedef ptrdiff_t difference_type; // since C++20 290 typedef void reference; 291 typedef void pointer; 292 293 explicit back_insert_iterator(Container& x); // constexpr in C++20 294 back_insert_iterator& operator=(const typename Container::value_type& value); // constexpr in C++20 295 back_insert_iterator& operator*(); // constexpr in C++20 296 back_insert_iterator& operator++(); // constexpr in C++20 297 back_insert_iterator operator++(int); // constexpr in C++20 298}; 299 300template <class Container> back_insert_iterator<Container> back_inserter(Container& x); // constexpr in C++20 301 302template <class Container> 303class front_insert_iterator 304 : public iterator<output_iterator_tag, void, void, void, void> // until C++17 305{ 306protected: 307 Container* container; 308public: 309 typedef Container container_type; 310 typedef void value_type; 311 typedef void difference_type; // until C++20 312 typedef ptrdiff_t difference_type; // since C++20 313 typedef void reference; 314 typedef void pointer; 315 316 explicit front_insert_iterator(Container& x); // constexpr in C++20 317 front_insert_iterator& operator=(const typename Container::value_type& value); // constexpr in C++20 318 front_insert_iterator& operator*(); // constexpr in C++20 319 front_insert_iterator& operator++(); // constexpr in C++20 320 front_insert_iterator operator++(int); // constexpr in C++20 321}; 322 323template <class Container> front_insert_iterator<Container> front_inserter(Container& x); // constexpr in C++20 324 325template <class Container> 326class insert_iterator 327 : public iterator<output_iterator_tag, void, void, void, void> // until C++17 328{ 329protected: 330 Container* container; 331 typename Container::iterator iter; 332public: 333 typedef Container container_type; 334 typedef void value_type; 335 typedef void difference_type; // until C++20 336 typedef ptrdiff_t difference_type; // since C++20 337 typedef void reference; 338 typedef void pointer; 339 340 insert_iterator(Container& x, typename Container::iterator i); // constexpr in C++20 341 insert_iterator& operator=(const typename Container::value_type& value); // constexpr in C++20 342 insert_iterator& operator*(); // constexpr in C++20 343 insert_iterator& operator++(); // constexpr in C++20 344 insert_iterator& operator++(int); // constexpr in C++20 345}; 346 347template <class Container> 348insert_iterator<Container> inserter(Container& x, typename Container::iterator i); // until C++20 349template <class Container> 350constexpr insert_iterator<Container> inserter(Container& x, ranges::iterator_t<Container> i); // since C++20 351 352template <class Iterator> 353class move_iterator { 354public: 355 typedef Iterator iterator_type; 356 typedef typename iterator_traits<Iterator>::difference_type difference_type; 357 typedef Iterator pointer; 358 typedef typename iterator_traits<Iterator>::value_type value_type; 359 typedef typename iterator_traits<Iterator>::iterator_category iterator_category; 360 typedef value_type&& reference; 361 362 constexpr move_iterator(); // all the constexprs are in C++17 363 constexpr explicit move_iterator(Iterator i); 364 template <class U> 365 constexpr move_iterator(const move_iterator<U>& u); 366 template <class U> 367 constexpr move_iterator& operator=(const move_iterator<U>& u); 368 constexpr iterator_type base() const; 369 constexpr reference operator*() const; 370 constexpr pointer operator->() const; 371 constexpr move_iterator& operator++(); 372 constexpr move_iterator operator++(int); 373 constexpr move_iterator& operator--(); 374 constexpr move_iterator operator--(int); 375 constexpr move_iterator operator+(difference_type n) const; 376 constexpr move_iterator& operator+=(difference_type n); 377 constexpr move_iterator operator-(difference_type n) const; 378 constexpr move_iterator& operator-=(difference_type n); 379 constexpr unspecified operator[](difference_type n) const; 380private: 381 Iterator current; // exposition only 382}; 383 384template <class Iterator1, class Iterator2> 385constexpr bool // constexpr in C++17 386operator==(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); 387 388template <class Iterator1, class Iterator2> 389constexpr bool // constexpr in C++17 390operator!=(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); 391 392template <class Iterator1, class Iterator2> 393constexpr bool // constexpr in C++17 394operator<(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); 395 396template <class Iterator1, class Iterator2> 397constexpr bool // constexpr in C++17 398operator<=(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); 399 400template <class Iterator1, class Iterator2> 401constexpr bool // constexpr in C++17 402operator>(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); 403 404template <class Iterator1, class Iterator2> 405constexpr bool // constexpr in C++17 406operator>=(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); 407 408template <class Iterator1, class Iterator2> 409constexpr auto // constexpr in C++17 410operator-(const move_iterator<Iterator1>& x, 411 const move_iterator<Iterator2>& y) -> decltype(x.base() - y.base()); 412 413template <class Iterator> 414constexpr move_iterator<Iterator> operator+( // constexpr in C++17 415 typename move_iterator<Iterator>::difference_type n, 416 const move_iterator<Iterator>& x); 417 418template <class Iterator> // constexpr in C++17 419constexpr move_iterator<Iterator> make_move_iterator(const Iterator& i); 420 421// [default.sentinel], default sentinel 422struct default_sentinel_t; 423inline constexpr default_sentinel_t default_sentinel{}; 424 425// [iterators.counted], counted iterators 426template<input_or_output_iterator I> class counted_iterator; 427 428template<input_iterator I> 429 requires see below 430 struct iterator_traits<counted_iterator<I>>; 431 432// [unreachable.sentinel], unreachable sentinel 433struct unreachable_sentinel_t; 434inline constexpr unreachable_sentinel_t unreachable_sentinel{}; 435 436template <class T, class charT = char, class traits = char_traits<charT>, class Distance = ptrdiff_t> 437class istream_iterator 438 : public iterator<input_iterator_tag, T, Distance, const T*, const T&> // until C++17 439{ 440public: 441 typedef input_iterator_tag iterator_category; 442 typedef T value_type; 443 typedef Distance difference_type; 444 typedef const T* pointer; 445 typedef const T& reference; 446 447 typedef charT char_type; 448 typedef traits traits_type; 449 typedef basic_istream<charT, traits> istream_type; 450 451 constexpr istream_iterator(); 452 istream_iterator(istream_type& s); 453 istream_iterator(const istream_iterator& x); 454 ~istream_iterator(); 455 456 const T& operator*() const; 457 const T* operator->() const; 458 istream_iterator& operator++(); 459 istream_iterator operator++(int); 460}; 461 462template <class T, class charT, class traits, class Distance> 463bool operator==(const istream_iterator<T,charT,traits,Distance>& x, 464 const istream_iterator<T,charT,traits,Distance>& y); 465template <class T, class charT, class traits, class Distance> 466bool operator!=(const istream_iterator<T,charT,traits,Distance>& x, 467 const istream_iterator<T,charT,traits,Distance>& y); 468 469template <class T, class charT = char, class traits = char_traits<charT> > 470class ostream_iterator 471 : public iterator<output_iterator_tag, void, void, void, void> // until C++17 472{ 473public: 474 typedef output_iterator_tag iterator_category; 475 typedef void value_type; 476 typedef void difference_type; // until C++20 477 typedef ptrdiff_t difference_type; // since C++20 478 typedef void pointer; 479 typedef void reference; 480 481 typedef charT char_type; 482 typedef traits traits_type; 483 typedef basic_ostream<charT,traits> ostream_type; 484 485 ostream_iterator(ostream_type& s); 486 ostream_iterator(ostream_type& s, const charT* delimiter); 487 ostream_iterator(const ostream_iterator& x); 488 ~ostream_iterator(); 489 ostream_iterator& operator=(const T& value); 490 491 ostream_iterator& operator*(); 492 ostream_iterator& operator++(); 493 ostream_iterator& operator++(int); 494}; 495 496template<class charT, class traits = char_traits<charT> > 497class istreambuf_iterator 498 : public iterator<input_iterator_tag, charT, traits::off_type, unspecified, charT> // until C++17 499{ 500public: 501 typedef input_iterator_tag iterator_category; 502 typedef charT value_type; 503 typedef traits::off_type difference_type; 504 typedef unspecified pointer; 505 typedef charT reference; 506 507 typedef charT char_type; 508 typedef traits traits_type; 509 typedef traits::int_type int_type; 510 typedef basic_streambuf<charT, traits> streambuf_type; 511 typedef basic_istream<charT, traits> istream_type; 512 513 istreambuf_iterator() noexcept; 514 istreambuf_iterator(istream_type& s) noexcept; 515 istreambuf_iterator(streambuf_type* s) noexcept; 516 istreambuf_iterator(a-private-type) noexcept; 517 518 charT operator*() const; 519 pointer operator->() const; 520 istreambuf_iterator& operator++(); 521 a-private-type operator++(int); 522 523 bool equal(const istreambuf_iterator& b) const; 524}; 525 526template <class charT, class traits> 527bool operator==(const istreambuf_iterator<charT,traits>& a, 528 const istreambuf_iterator<charT,traits>& b); 529template <class charT, class traits> 530bool operator!=(const istreambuf_iterator<charT,traits>& a, 531 const istreambuf_iterator<charT,traits>& b); 532 533template <class charT, class traits = char_traits<charT> > 534class ostreambuf_iterator 535 : public iterator<output_iterator_tag, void, void, void, void> // until C++17 536{ 537public: 538 typedef output_iterator_tag iterator_category; 539 typedef void value_type; 540 typedef void difference_type; // until C++20 541 typedef ptrdiff_t difference_type; // since C++20 542 typedef void pointer; 543 typedef void reference; 544 545 typedef charT char_type; 546 typedef traits traits_type; 547 typedef basic_streambuf<charT, traits> streambuf_type; 548 typedef basic_ostream<charT, traits> ostream_type; 549 550 ostreambuf_iterator(ostream_type& s) noexcept; 551 ostreambuf_iterator(streambuf_type* s) noexcept; 552 ostreambuf_iterator& operator=(charT c); 553 ostreambuf_iterator& operator*(); 554 ostreambuf_iterator& operator++(); 555 ostreambuf_iterator& operator++(int); 556 bool failed() const noexcept; 557}; 558 559template <class C> constexpr auto begin(C& c) -> decltype(c.begin()); 560template <class C> constexpr auto begin(const C& c) -> decltype(c.begin()); 561template <class C> constexpr auto end(C& c) -> decltype(c.end()); 562template <class C> constexpr auto end(const C& c) -> decltype(c.end()); 563template <class T, size_t N> constexpr T* begin(T (&array)[N]); 564template <class T, size_t N> constexpr T* end(T (&array)[N]); 565 566template <class C> auto constexpr cbegin(const C& c) -> decltype(std::begin(c)); // C++14 567template <class C> auto constexpr cend(const C& c) -> decltype(std::end(c)); // C++14 568template <class C> auto constexpr rbegin(C& c) -> decltype(c.rbegin()); // C++14 569template <class C> auto constexpr rbegin(const C& c) -> decltype(c.rbegin()); // C++14 570template <class C> auto constexpr rend(C& c) -> decltype(c.rend()); // C++14 571template <class C> constexpr auto rend(const C& c) -> decltype(c.rend()); // C++14 572template <class E> reverse_iterator<const E*> constexpr rbegin(initializer_list<E> il); // C++14 573template <class E> reverse_iterator<const E*> constexpr rend(initializer_list<E> il); // C++14 574template <class T, size_t N> reverse_iterator<T*> constexpr rbegin(T (&array)[N]); // C++14 575template <class T, size_t N> reverse_iterator<T*> constexpr rend(T (&array)[N]); // C++14 576template <class C> constexpr auto crbegin(const C& c) -> decltype(std::rbegin(c)); // C++14 577template <class C> constexpr auto crend(const C& c) -> decltype(std::rend(c)); // C++14 578 579// 24.8, container access: 580template <class C> constexpr auto size(const C& c) -> decltype(c.size()); // C++17 581template <class T, size_t N> constexpr size_t size(const T (&array)[N]) noexcept; // C++17 582 583template <class C> constexpr auto ssize(const C& c) 584 -> common_type_t<ptrdiff_t, make_signed_t<decltype(c.size())>>; // C++20 585template <class T, ptrdiff_t> constexpr ptrdiff_t ssize(const T (&array)[N]) noexcept; // C++20 586 587template <class C> constexpr auto empty(const C& c) -> decltype(c.empty()); // C++17 588template <class T, size_t N> constexpr bool empty(const T (&array)[N]) noexcept; // C++17 589template <class E> constexpr bool empty(initializer_list<E> il) noexcept; // C++17 590template <class C> constexpr auto data(C& c) -> decltype(c.data()); // C++17 591template <class C> constexpr auto data(const C& c) -> decltype(c.data()); // C++17 592template <class T, size_t N> constexpr T* data(T (&array)[N]) noexcept; // C++17 593template <class E> constexpr const E* data(initializer_list<E> il) noexcept; // C++17 594 595} // std 596 597*/ 598 599#include <__config> 600#include <__debug> 601#include <__iterator/access.h> 602#include <__iterator/advance.h> 603#include <__iterator/back_insert_iterator.h> 604#include <__iterator/common_iterator.h> 605#include <__iterator/concepts.h> 606#include <__iterator/counted_iterator.h> 607#include <__iterator/data.h> 608#include <__iterator/default_sentinel.h> 609#include <__iterator/distance.h> 610#include <__iterator/empty.h> 611#include <__iterator/erase_if_container.h> 612#include <__iterator/front_insert_iterator.h> 613#include <__iterator/incrementable_traits.h> 614#include <__iterator/indirectly_comparable.h> 615#include <__iterator/insert_iterator.h> 616#include <__iterator/istream_iterator.h> 617#include <__iterator/istreambuf_iterator.h> 618#include <__iterator/iter_move.h> 619#include <__iterator/iter_swap.h> 620#include <__iterator/iterator.h> 621#include <__iterator/iterator_traits.h> 622#include <__iterator/move_iterator.h> 623#include <__iterator/next.h> 624#include <__iterator/ostream_iterator.h> 625#include <__iterator/ostreambuf_iterator.h> 626#include <__iterator/permutable.h> 627#include <__iterator/prev.h> 628#include <__iterator/projected.h> 629#include <__iterator/readable_traits.h> 630#include <__iterator/reverse_access.h> 631#include <__iterator/reverse_iterator.h> 632#include <__iterator/size.h> 633#include <__iterator/unreachable_sentinel.h> 634#include <__iterator/wrap_iter.h> 635#include <__memory/addressof.h> 636#include <__memory/pointer_traits.h> 637#include <compare> 638#include <concepts> // Mandated by the Standard. 639#include <cstddef> 640#include <initializer_list> 641#include <type_traits> 642#include <utility> 643#include <version> 644 645// TODO: remove these headers 646#include <__functional/binary_function.h> 647#include <__functional/invoke.h> 648#include <__functional/operations.h> 649#include <__functional/reference_wrapper.h> 650#include <__functional/unary_function.h> 651#include <__functional/weak_result_type.h> 652#include <__memory/allocator_arg_t.h> 653#include <__memory/uses_allocator.h> 654#include <exception> 655#include <new> 656#include <typeinfo> 657 658#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 659# pragma GCC system_header 660#endif 661 662#endif // _LIBCPP_ITERATOR 663