1 | // vector<bool> specialization -*- C++ -*- |
2 | |
3 | // Copyright (C) 2001-2024 Free Software Foundation, Inc. |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free |
6 | // software; you can redistribute it and/or modify it under the |
7 | // terms of the GNU General Public License as published by the |
8 | // Free Software Foundation; either version 3, or (at your option) |
9 | // any later version. |
10 | |
11 | // This library is distributed in the hope that it will be useful, |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | // GNU General Public License for more details. |
15 | |
16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version |
18 | // 3.1, as published by the Free Software Foundation. |
19 | |
20 | // You should have received a copy of the GNU General Public License and |
21 | // a copy of the GCC Runtime Library Exception along with this program; |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
23 | // <http://www.gnu.org/licenses/>. |
24 | |
25 | /* |
26 | * |
27 | * Copyright (c) 1994 |
28 | * Hewlett-Packard Company |
29 | * |
30 | * Permission to use, copy, modify, distribute and sell this software |
31 | * and its documentation for any purpose is hereby granted without fee, |
32 | * provided that the above copyright notice appear in all copies and |
33 | * that both that copyright notice and this permission notice appear |
34 | * in supporting documentation. Hewlett-Packard Company makes no |
35 | * representations about the suitability of this software for any |
36 | * purpose. It is provided "as is" without express or implied warranty. |
37 | * |
38 | * |
39 | * Copyright (c) 1996-1999 |
40 | * Silicon Graphics Computer Systems, Inc. |
41 | * |
42 | * Permission to use, copy, modify, distribute and sell this software |
43 | * and its documentation for any purpose is hereby granted without fee, |
44 | * provided that the above copyright notice appear in all copies and |
45 | * that both that copyright notice and this permission notice appear |
46 | * in supporting documentation. Silicon Graphics makes no |
47 | * representations about the suitability of this software for any |
48 | * purpose. It is provided "as is" without express or implied warranty. |
49 | */ |
50 | |
51 | /** @file bits/stl_bvector.h |
52 | * This is an internal header file, included by other library headers. |
53 | * Do not attempt to use it directly. @headername{vector} |
54 | */ |
55 | |
56 | #ifndef _STL_BVECTOR_H |
57 | #define _STL_BVECTOR_H 1 |
58 | |
59 | #ifndef _GLIBCXX_ALWAYS_INLINE |
60 | #define _GLIBCXX_ALWAYS_INLINE inline __attribute__((__always_inline__)) |
61 | #endif |
62 | |
63 | #if __cplusplus >= 201103L |
64 | #include <initializer_list> |
65 | #include <bits/functional_hash.h> |
66 | #endif |
67 | |
68 | namespace std _GLIBCXX_VISIBILITY(default) |
69 | { |
70 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
71 | |
72 | typedef unsigned long _Bit_type; |
73 | enum { _S_word_bit = int(__CHAR_BIT__ * sizeof(_Bit_type)) }; |
74 | |
75 | __attribute__((__nonnull__)) |
76 | _GLIBCXX20_CONSTEXPR |
77 | void |
78 | __fill_bvector_n(_Bit_type*, size_t, bool) _GLIBCXX_NOEXCEPT; |
79 | |
80 | _GLIBCXX_BEGIN_NAMESPACE_CONTAINER |
81 | |
82 | struct _Bit_reference |
83 | { |
84 | _Bit_type * _M_p; |
85 | _Bit_type _M_mask; |
86 | |
87 | _GLIBCXX20_CONSTEXPR |
88 | _Bit_reference(_Bit_type * __x, _Bit_type __y) |
89 | : _M_p(__x), _M_mask(__y) { } |
90 | |
91 | _GLIBCXX20_CONSTEXPR |
92 | _Bit_reference() _GLIBCXX_NOEXCEPT : _M_p(0), _M_mask(0) { } |
93 | |
94 | #if __cplusplus >= 201103L |
95 | _Bit_reference(const _Bit_reference&) = default; |
96 | #endif |
97 | |
98 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
99 | operator bool() const _GLIBCXX_NOEXCEPT |
100 | { return !!(*_M_p & _M_mask); } |
101 | |
102 | _GLIBCXX20_CONSTEXPR |
103 | _Bit_reference& |
104 | operator=(bool __x) _GLIBCXX_NOEXCEPT |
105 | { |
106 | if (__x) |
107 | *_M_p |= _M_mask; |
108 | else |
109 | *_M_p &= ~_M_mask; |
110 | return *this; |
111 | } |
112 | |
113 | #if __cplusplus > 202002L |
114 | constexpr const _Bit_reference& |
115 | operator=(bool __x) const noexcept |
116 | { |
117 | if (__x) |
118 | *_M_p |= _M_mask; |
119 | else |
120 | *_M_p &= ~_M_mask; |
121 | return *this; |
122 | } |
123 | #endif // C++23 |
124 | |
125 | _GLIBCXX20_CONSTEXPR |
126 | _Bit_reference& |
127 | operator=(const _Bit_reference& __x) _GLIBCXX_NOEXCEPT |
128 | { return *this = bool(__x); } |
129 | |
130 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
131 | bool |
132 | operator==(const _Bit_reference& __x) const |
133 | { return bool(*this) == bool(__x); } |
134 | |
135 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
136 | bool |
137 | operator<(const _Bit_reference& __x) const |
138 | { return !bool(*this) && bool(__x); } |
139 | |
140 | _GLIBCXX20_CONSTEXPR |
141 | void |
142 | flip() _GLIBCXX_NOEXCEPT |
143 | { *_M_p ^= _M_mask; } |
144 | |
145 | #if __cplusplus >= 201103L |
146 | _GLIBCXX20_CONSTEXPR |
147 | friend void |
148 | swap(_Bit_reference __x, _Bit_reference __y) noexcept |
149 | { |
150 | bool __tmp = __x; |
151 | __x = __y; |
152 | __y = __tmp; |
153 | } |
154 | |
155 | _GLIBCXX20_CONSTEXPR |
156 | friend void |
157 | swap(_Bit_reference __x, bool& __y) noexcept |
158 | { |
159 | bool __tmp = __x; |
160 | __x = __y; |
161 | __y = __tmp; |
162 | } |
163 | |
164 | _GLIBCXX20_CONSTEXPR |
165 | friend void |
166 | swap(bool& __x, _Bit_reference __y) noexcept |
167 | { |
168 | bool __tmp = __x; |
169 | __x = __y; |
170 | __y = __tmp; |
171 | } |
172 | #endif |
173 | }; |
174 | |
175 | // Ignore warnings about std::iterator. |
176 | #pragma GCC diagnostic push |
177 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" |
178 | struct _Bit_iterator_base |
179 | : public std::iterator<std::random_access_iterator_tag, bool> |
180 | { |
181 | _Bit_type * _M_p; |
182 | unsigned int _M_offset; |
183 | |
184 | _GLIBCXX20_CONSTEXPR _GLIBCXX_ALWAYS_INLINE |
185 | void |
186 | _M_assume_normalized() const |
187 | { |
188 | #if __has_attribute(__assume__) && !defined(__clang__) |
189 | unsigned int __ofst = _M_offset; |
190 | __attribute__ ((__assume__ (__ofst < unsigned(_S_word_bit)))); |
191 | #endif |
192 | } |
193 | |
194 | _GLIBCXX20_CONSTEXPR |
195 | _Bit_iterator_base(_Bit_type * __x, unsigned int __y) |
196 | : _M_p(__x), _M_offset(__y) { } |
197 | |
198 | _GLIBCXX20_CONSTEXPR |
199 | void |
200 | _M_bump_up() |
201 | { |
202 | _M_assume_normalized(); |
203 | if (_M_offset++ == int(_S_word_bit) - 1) |
204 | { |
205 | _M_offset = 0; |
206 | ++_M_p; |
207 | } |
208 | } |
209 | |
210 | _GLIBCXX20_CONSTEXPR |
211 | void |
212 | _M_bump_down() |
213 | { |
214 | _M_assume_normalized(); |
215 | if (_M_offset-- == 0) |
216 | { |
217 | _M_offset = int(_S_word_bit) - 1; |
218 | --_M_p; |
219 | } |
220 | } |
221 | |
222 | _GLIBCXX20_CONSTEXPR |
223 | void |
224 | _M_incr(ptrdiff_t __i) |
225 | { |
226 | _M_assume_normalized(); |
227 | difference_type __n = __i + _M_offset; |
228 | _M_p += __n / int(_S_word_bit); |
229 | __n = __n % int(_S_word_bit); |
230 | if (__n < 0) |
231 | { |
232 | __n += int(_S_word_bit); |
233 | --_M_p; |
234 | } |
235 | _M_offset = static_cast<unsigned int>(__n); |
236 | } |
237 | |
238 | _GLIBCXX_NODISCARD |
239 | friend _GLIBCXX20_CONSTEXPR bool |
240 | operator==(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
241 | { |
242 | __x._M_assume_normalized(); |
243 | __y._M_assume_normalized(); |
244 | return __x._M_p == __y._M_p && __x._M_offset == __y._M_offset; |
245 | } |
246 | |
247 | #if __cpp_lib_three_way_comparison |
248 | [[nodiscard]] |
249 | friend constexpr strong_ordering |
250 | operator<=>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
251 | noexcept |
252 | { |
253 | __x._M_assume_normalized(); |
254 | __y._M_assume_normalized(); |
255 | if (const auto __cmp = __x._M_p <=> __y._M_p; __cmp != 0) |
256 | return __cmp; |
257 | return __x._M_offset <=> __y._M_offset; |
258 | } |
259 | #else |
260 | _GLIBCXX_NODISCARD |
261 | friend bool |
262 | operator<(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
263 | { |
264 | __x._M_assume_normalized(); |
265 | __y._M_assume_normalized(); |
266 | return __x._M_p < __y._M_p |
267 | || (__x._M_p == __y._M_p && __x._M_offset < __y._M_offset); |
268 | } |
269 | |
270 | _GLIBCXX_NODISCARD |
271 | friend bool |
272 | operator!=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
273 | { return !(__x == __y); } |
274 | |
275 | _GLIBCXX_NODISCARD |
276 | friend bool |
277 | operator>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
278 | { return __y < __x; } |
279 | |
280 | _GLIBCXX_NODISCARD |
281 | friend bool |
282 | operator<=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
283 | { return !(__y < __x); } |
284 | |
285 | _GLIBCXX_NODISCARD |
286 | friend bool |
287 | operator>=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
288 | { return !(__x < __y); } |
289 | #endif // three-way comparison |
290 | |
291 | friend _GLIBCXX20_CONSTEXPR ptrdiff_t |
292 | operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) |
293 | { |
294 | __x._M_assume_normalized(); |
295 | __y._M_assume_normalized(); |
296 | return (int(_S_word_bit) * (__x._M_p - __y._M_p) |
297 | + __x._M_offset - __y._M_offset); |
298 | } |
299 | }; |
300 | #pragma GCC diagnostic pop |
301 | |
302 | struct _Bit_iterator : public _Bit_iterator_base |
303 | { |
304 | typedef _Bit_reference reference; |
305 | #if __cplusplus > 201703L |
306 | typedef void pointer; |
307 | #else |
308 | typedef _Bit_reference* pointer; |
309 | #endif |
310 | typedef _Bit_iterator iterator; |
311 | |
312 | _GLIBCXX20_CONSTEXPR |
313 | _Bit_iterator() : _Bit_iterator_base(0, 0) { } |
314 | |
315 | _GLIBCXX20_CONSTEXPR |
316 | _Bit_iterator(_Bit_type * __x, unsigned int __y) |
317 | : _Bit_iterator_base(__x, __y) { } |
318 | |
319 | _GLIBCXX20_CONSTEXPR |
320 | iterator |
321 | _M_const_cast() const |
322 | { return *this; } |
323 | |
324 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
325 | reference |
326 | operator*() const |
327 | { |
328 | _M_assume_normalized(); |
329 | return reference(_M_p, 1UL << _M_offset); |
330 | } |
331 | |
332 | _GLIBCXX20_CONSTEXPR |
333 | iterator& |
334 | operator++() |
335 | { |
336 | _M_bump_up(); |
337 | return *this; |
338 | } |
339 | |
340 | _GLIBCXX20_CONSTEXPR |
341 | iterator |
342 | operator++(int) |
343 | { |
344 | iterator __tmp = *this; |
345 | _M_bump_up(); |
346 | return __tmp; |
347 | } |
348 | |
349 | _GLIBCXX20_CONSTEXPR |
350 | iterator& |
351 | operator--() |
352 | { |
353 | _M_bump_down(); |
354 | return *this; |
355 | } |
356 | |
357 | _GLIBCXX20_CONSTEXPR |
358 | iterator |
359 | operator--(int) |
360 | { |
361 | iterator __tmp = *this; |
362 | _M_bump_down(); |
363 | return __tmp; |
364 | } |
365 | |
366 | _GLIBCXX20_CONSTEXPR |
367 | iterator& |
368 | operator+=(difference_type __i) |
369 | { |
370 | _M_incr(__i); |
371 | return *this; |
372 | } |
373 | |
374 | _GLIBCXX20_CONSTEXPR |
375 | iterator& |
376 | operator-=(difference_type __i) |
377 | { |
378 | *this += -__i; |
379 | return *this; |
380 | } |
381 | |
382 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
383 | reference |
384 | operator[](difference_type __i) const |
385 | { return *(*this + __i); } |
386 | |
387 | _GLIBCXX_NODISCARD |
388 | friend _GLIBCXX20_CONSTEXPR iterator |
389 | operator+(const iterator& __x, difference_type __n) |
390 | { |
391 | iterator __tmp = __x; |
392 | __tmp += __n; |
393 | return __tmp; |
394 | } |
395 | |
396 | _GLIBCXX_NODISCARD |
397 | friend _GLIBCXX20_CONSTEXPR iterator |
398 | operator+(difference_type __n, const iterator& __x) |
399 | { return __x + __n; } |
400 | |
401 | _GLIBCXX_NODISCARD |
402 | friend _GLIBCXX20_CONSTEXPR iterator |
403 | operator-(const iterator& __x, difference_type __n) |
404 | { |
405 | iterator __tmp = __x; |
406 | __tmp -= __n; |
407 | return __tmp; |
408 | } |
409 | }; |
410 | |
411 | struct _Bit_const_iterator : public _Bit_iterator_base |
412 | { |
413 | typedef bool reference; |
414 | typedef bool const_reference; |
415 | #if __cplusplus > 201703L |
416 | typedef void pointer; |
417 | #else |
418 | typedef const bool* pointer; |
419 | #endif |
420 | typedef _Bit_const_iterator const_iterator; |
421 | |
422 | _GLIBCXX20_CONSTEXPR |
423 | _Bit_const_iterator() : _Bit_iterator_base(0, 0) { } |
424 | |
425 | _GLIBCXX20_CONSTEXPR |
426 | _Bit_const_iterator(_Bit_type * __x, unsigned int __y) |
427 | : _Bit_iterator_base(__x, __y) { } |
428 | |
429 | _GLIBCXX20_CONSTEXPR |
430 | _Bit_const_iterator(const _Bit_iterator& __x) |
431 | : _Bit_iterator_base(__x._M_p, __x._M_offset) { } |
432 | |
433 | _GLIBCXX20_CONSTEXPR |
434 | _Bit_iterator |
435 | _M_const_cast() const |
436 | { return _Bit_iterator(_M_p, _M_offset); } |
437 | |
438 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
439 | const_reference |
440 | operator*() const |
441 | { |
442 | _M_assume_normalized(); |
443 | return _Bit_reference(_M_p, 1UL << _M_offset); |
444 | } |
445 | |
446 | _GLIBCXX20_CONSTEXPR |
447 | const_iterator& |
448 | operator++() |
449 | { |
450 | _M_bump_up(); |
451 | return *this; |
452 | } |
453 | |
454 | _GLIBCXX20_CONSTEXPR |
455 | const_iterator |
456 | operator++(int) |
457 | { |
458 | const_iterator __tmp = *this; |
459 | _M_bump_up(); |
460 | return __tmp; |
461 | } |
462 | |
463 | _GLIBCXX20_CONSTEXPR |
464 | const_iterator& |
465 | operator--() |
466 | { |
467 | _M_bump_down(); |
468 | return *this; |
469 | } |
470 | |
471 | _GLIBCXX20_CONSTEXPR |
472 | const_iterator |
473 | operator--(int) |
474 | { |
475 | const_iterator __tmp = *this; |
476 | _M_bump_down(); |
477 | return __tmp; |
478 | } |
479 | |
480 | _GLIBCXX20_CONSTEXPR |
481 | const_iterator& |
482 | operator+=(difference_type __i) |
483 | { |
484 | _M_incr(__i); |
485 | return *this; |
486 | } |
487 | |
488 | _GLIBCXX20_CONSTEXPR |
489 | const_iterator& |
490 | operator-=(difference_type __i) |
491 | { |
492 | *this += -__i; |
493 | return *this; |
494 | } |
495 | |
496 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
497 | const_reference |
498 | operator[](difference_type __i) const |
499 | { return *(*this + __i); } |
500 | |
501 | _GLIBCXX_NODISCARD |
502 | friend _GLIBCXX20_CONSTEXPR const_iterator |
503 | operator+(const const_iterator& __x, difference_type __n) |
504 | { |
505 | const_iterator __tmp = __x; |
506 | __tmp += __n; |
507 | return __tmp; |
508 | } |
509 | |
510 | _GLIBCXX_NODISCARD |
511 | friend _GLIBCXX20_CONSTEXPR const_iterator |
512 | operator-(const const_iterator& __x, difference_type __n) |
513 | { |
514 | const_iterator __tmp = __x; |
515 | __tmp -= __n; |
516 | return __tmp; |
517 | } |
518 | |
519 | _GLIBCXX_NODISCARD |
520 | friend _GLIBCXX20_CONSTEXPR const_iterator |
521 | operator+(difference_type __n, const const_iterator& __x) |
522 | { return __x + __n; } |
523 | }; |
524 | |
525 | template<typename _Alloc> |
526 | struct _Bvector_base |
527 | { |
528 | typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template |
529 | rebind<_Bit_type>::other _Bit_alloc_type; |
530 | typedef typename __gnu_cxx::__alloc_traits<_Bit_alloc_type> |
531 | _Bit_alloc_traits; |
532 | typedef typename _Bit_alloc_traits::pointer _Bit_pointer; |
533 | |
534 | struct _Bvector_impl_data |
535 | { |
536 | #if !_GLIBCXX_INLINE_VERSION |
537 | _Bit_iterator _M_start; |
538 | #else |
539 | // We don't need the offset field for the start, it's always zero. |
540 | struct { |
541 | _Bit_type* _M_p; |
542 | // Allow assignment from iterators (assume offset is zero): |
543 | _GLIBCXX20_CONSTEXPR |
544 | void operator=(_Bit_iterator __it) { _M_p = __it._M_p; } |
545 | } _M_start; |
546 | #endif |
547 | _Bit_iterator _M_finish; |
548 | _Bit_pointer _M_end_of_storage; |
549 | |
550 | _GLIBCXX20_CONSTEXPR |
551 | _Bvector_impl_data() _GLIBCXX_NOEXCEPT |
552 | : _M_start(), _M_finish(), _M_end_of_storage() |
553 | { } |
554 | |
555 | #if __cplusplus >= 201103L |
556 | _Bvector_impl_data(const _Bvector_impl_data&) = default; |
557 | |
558 | _Bvector_impl_data& |
559 | operator=(const _Bvector_impl_data&) = default; |
560 | |
561 | _GLIBCXX20_CONSTEXPR |
562 | _Bvector_impl_data(_Bvector_impl_data&& __x) noexcept |
563 | : _Bvector_impl_data(__x) |
564 | { __x._M_reset(); } |
565 | |
566 | _GLIBCXX20_CONSTEXPR |
567 | void |
568 | _M_move_data(_Bvector_impl_data&& __x) noexcept |
569 | { |
570 | *this = __x; |
571 | __x._M_reset(); |
572 | } |
573 | #endif |
574 | |
575 | _GLIBCXX20_CONSTEXPR |
576 | void |
577 | _M_reset() _GLIBCXX_NOEXCEPT |
578 | { *this = _Bvector_impl_data(); } |
579 | |
580 | _GLIBCXX20_CONSTEXPR |
581 | void |
582 | _M_swap_data(_Bvector_impl_data& __x) _GLIBCXX_NOEXCEPT |
583 | { |
584 | // Do not use std::swap(_M_start, __x._M_start), etc as it loses |
585 | // information used by TBAA. |
586 | std::swap(*this, __x); |
587 | } |
588 | }; |
589 | |
590 | struct _Bvector_impl |
591 | : public _Bit_alloc_type, public _Bvector_impl_data |
592 | { |
593 | _GLIBCXX20_CONSTEXPR |
594 | _Bvector_impl() _GLIBCXX_NOEXCEPT_IF( |
595 | is_nothrow_default_constructible<_Bit_alloc_type>::value) |
596 | #if __cpp_concepts && __glibcxx_type_trait_variable_templates |
597 | requires is_default_constructible_v<_Bit_alloc_type> |
598 | #endif |
599 | : _Bit_alloc_type() |
600 | { } |
601 | |
602 | _GLIBCXX20_CONSTEXPR |
603 | _Bvector_impl(const _Bit_alloc_type& __a) _GLIBCXX_NOEXCEPT |
604 | : _Bit_alloc_type(__a) |
605 | { } |
606 | |
607 | #if __cplusplus >= 201103L |
608 | // Not defaulted, to enforce noexcept(true) even when |
609 | // !is_nothrow_move_constructible<_Bit_alloc_type>. |
610 | _GLIBCXX20_CONSTEXPR |
611 | _Bvector_impl(_Bvector_impl&& __x) noexcept |
612 | : _Bit_alloc_type(std::move(__x)), _Bvector_impl_data(std::move(__x)) |
613 | { } |
614 | |
615 | _GLIBCXX20_CONSTEXPR |
616 | _Bvector_impl(_Bit_alloc_type&& __a, _Bvector_impl&& __x) noexcept |
617 | : _Bit_alloc_type(std::move(__a)), _Bvector_impl_data(std::move(__x)) |
618 | { } |
619 | #endif |
620 | |
621 | _GLIBCXX20_CONSTEXPR |
622 | _Bit_type* |
623 | _M_end_addr() const _GLIBCXX_NOEXCEPT |
624 | { |
625 | if (this->_M_end_of_storage) |
626 | return std::__addressof(this->_M_end_of_storage[-1]) + 1; |
627 | return 0; |
628 | } |
629 | }; |
630 | |
631 | public: |
632 | typedef _Alloc allocator_type; |
633 | |
634 | _GLIBCXX20_CONSTEXPR |
635 | _Bit_alloc_type& |
636 | _M_get_Bit_allocator() _GLIBCXX_NOEXCEPT |
637 | { return this->_M_impl; } |
638 | |
639 | _GLIBCXX20_CONSTEXPR |
640 | const _Bit_alloc_type& |
641 | _M_get_Bit_allocator() const _GLIBCXX_NOEXCEPT |
642 | { return this->_M_impl; } |
643 | |
644 | _GLIBCXX20_CONSTEXPR |
645 | allocator_type |
646 | get_allocator() const _GLIBCXX_NOEXCEPT |
647 | { return allocator_type(_M_get_Bit_allocator()); } |
648 | |
649 | #if __cplusplus >= 201103L |
650 | _Bvector_base() = default; |
651 | #else |
652 | _Bvector_base() { } |
653 | #endif |
654 | |
655 | _GLIBCXX20_CONSTEXPR |
656 | _Bvector_base(const allocator_type& __a) |
657 | : _M_impl(_Bit_alloc_type(__a)) { } |
658 | |
659 | #if __cplusplus >= 201103L |
660 | _Bvector_base(_Bvector_base&&) = default; |
661 | |
662 | _GLIBCXX20_CONSTEXPR |
663 | _Bvector_base(_Bvector_base&& __x, const allocator_type& __a) noexcept |
664 | : _M_impl(_Bit_alloc_type(__a), std::move(__x._M_impl)) |
665 | { } |
666 | #endif |
667 | |
668 | _GLIBCXX20_CONSTEXPR |
669 | ~_Bvector_base() |
670 | { this->_M_deallocate(); } |
671 | |
672 | protected: |
673 | _Bvector_impl _M_impl; |
674 | |
675 | _GLIBCXX20_CONSTEXPR |
676 | _Bit_pointer |
677 | _M_allocate(size_t __n) |
678 | { |
679 | _Bit_pointer __p = _Bit_alloc_traits::allocate(_M_impl, _S_nword(__n)); |
680 | #if __cpp_lib_is_constant_evaluated && __cpp_constexpr_dynamic_alloc |
681 | if (std::is_constant_evaluated()) |
682 | { |
683 | __n = _S_nword(__n); |
684 | for (size_t __i = 0; __i < __n; ++__i) |
685 | std::construct_at(std::to_address(__p) + __i); |
686 | } |
687 | #endif |
688 | return __p; |
689 | } |
690 | |
691 | _GLIBCXX20_CONSTEXPR |
692 | void |
693 | _M_deallocate() |
694 | { |
695 | if (_M_impl._M_start._M_p) |
696 | { |
697 | const size_t __n = _M_impl._M_end_addr() - _M_impl._M_start._M_p; |
698 | _Bit_alloc_traits::deallocate(_M_impl, |
699 | _M_impl._M_end_of_storage - __n, |
700 | __n); |
701 | _M_impl._M_reset(); |
702 | } |
703 | } |
704 | |
705 | #if __cplusplus >= 201103L |
706 | _GLIBCXX20_CONSTEXPR |
707 | void |
708 | _M_move_data(_Bvector_base&& __x) noexcept |
709 | { _M_impl._M_move_data(std::move(__x._M_impl)); } |
710 | #endif |
711 | |
712 | _GLIBCXX_CONSTEXPR |
713 | static size_t |
714 | _S_nword(size_t __n) |
715 | { return (__n + int(_S_word_bit) - 1) / int(_S_word_bit); } |
716 | }; |
717 | |
718 | /** |
719 | * @brief A specialization of vector for booleans which offers fixed time |
720 | * access to individual elements in any order. |
721 | * |
722 | * @ingroup sequences |
723 | * @headerfile vector |
724 | * @since C++98 |
725 | * |
726 | * @tparam _Alloc Allocator type. |
727 | * |
728 | * Note that vector<bool> does not actually meet the requirements for being |
729 | * a container. This is because the reference and pointer types are not |
730 | * really references and pointers to bool. See DR96 for details. @see |
731 | * vector for function documentation. |
732 | * |
733 | * In some terminology a %vector can be described as a dynamic |
734 | * C-style array, it offers fast and efficient access to individual |
735 | * elements in any order and saves the user from worrying about |
736 | * memory and size allocation. Subscripting ( @c [] ) access is |
737 | * also provided as with C-style arrays. |
738 | */ |
739 | template<typename _Alloc> |
740 | class vector<bool, _Alloc> : protected _Bvector_base<_Alloc> |
741 | { |
742 | typedef _Bvector_base<_Alloc> _Base; |
743 | typedef typename _Base::_Bit_pointer _Bit_pointer; |
744 | typedef typename _Base::_Bit_alloc_traits _Bit_alloc_traits; |
745 | |
746 | #if __cplusplus >= 201103L |
747 | friend struct std::hash<vector>; |
748 | #endif |
749 | |
750 | public: |
751 | typedef bool value_type; |
752 | typedef size_t size_type; |
753 | typedef ptrdiff_t difference_type; |
754 | typedef _Bit_reference reference; |
755 | typedef bool const_reference; |
756 | typedef _Bit_reference* pointer; |
757 | typedef const bool* const_pointer; |
758 | typedef _Bit_iterator iterator; |
759 | typedef _Bit_const_iterator const_iterator; |
760 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; |
761 | typedef std::reverse_iterator<iterator> reverse_iterator; |
762 | typedef _Alloc allocator_type; |
763 | |
764 | _GLIBCXX20_CONSTEXPR |
765 | allocator_type |
766 | get_allocator() const |
767 | { return _Base::get_allocator(); } |
768 | |
769 | protected: |
770 | using _Base::_M_allocate; |
771 | using _Base::_M_deallocate; |
772 | using _Base::_S_nword; |
773 | using _Base::_M_get_Bit_allocator; |
774 | |
775 | public: |
776 | #if __cplusplus >= 201103L |
777 | vector() = default; |
778 | #else |
779 | vector() { } |
780 | #endif |
781 | |
782 | _GLIBCXX20_CONSTEXPR |
783 | explicit |
784 | vector(const allocator_type& __a) |
785 | : _Base(__a) { } |
786 | |
787 | #if __cplusplus >= 201103L |
788 | _GLIBCXX20_CONSTEXPR |
789 | explicit |
790 | vector(size_type __n, const allocator_type& __a = allocator_type()) |
791 | : vector(__n, false, __a) |
792 | { } |
793 | |
794 | _GLIBCXX20_CONSTEXPR |
795 | vector(size_type __n, const bool& __value, |
796 | const allocator_type& __a = allocator_type()) |
797 | #else |
798 | explicit |
799 | vector(size_type __n, const bool& __value = bool(), |
800 | const allocator_type& __a = allocator_type()) |
801 | #endif |
802 | : _Base(__a) |
803 | { |
804 | _M_initialize(__n); |
805 | _M_initialize_value(x: __value); |
806 | } |
807 | |
808 | _GLIBCXX20_CONSTEXPR |
809 | vector(const vector& __x) |
810 | : _Base(_Bit_alloc_traits::_S_select_on_copy(__x._M_get_Bit_allocator())) |
811 | { |
812 | const_iterator __xbegin = __x.begin(), __xend = __x.end(); |
813 | _M_initialize(n: __x.size()); |
814 | _M_copy_aligned(first: __xbegin, last: __xend, result: begin()); |
815 | } |
816 | |
817 | #if __cplusplus >= 201103L |
818 | vector(vector&&) = default; |
819 | |
820 | private: |
821 | _GLIBCXX20_CONSTEXPR |
822 | vector(vector&& __x, const allocator_type& __a, true_type) noexcept |
823 | : _Base(std::move(__x), __a) |
824 | { } |
825 | |
826 | _GLIBCXX20_CONSTEXPR |
827 | vector(vector&& __x, const allocator_type& __a, false_type) |
828 | : _Base(__a) |
829 | { |
830 | if (__x.get_allocator() == __a) |
831 | this->_M_move_data(std::move(__x)); |
832 | else |
833 | { |
834 | _M_initialize(n: __x.size()); |
835 | _M_copy_aligned(first: __x.begin(), last: __x.end(), result: begin()); |
836 | __x.clear(); |
837 | } |
838 | } |
839 | |
840 | public: |
841 | _GLIBCXX20_CONSTEXPR |
842 | vector(vector&& __x, const __type_identity_t<allocator_type>& __a) |
843 | noexcept(_Bit_alloc_traits::_S_always_equal()) |
844 | : vector(std::move(__x), __a, |
845 | typename _Bit_alloc_traits::is_always_equal{}) |
846 | { } |
847 | |
848 | _GLIBCXX20_CONSTEXPR |
849 | vector(const vector& __x, const __type_identity_t<allocator_type>& __a) |
850 | : _Base(__a) |
851 | { |
852 | _M_initialize(n: __x.size()); |
853 | _M_copy_aligned(first: __x.begin(), last: __x.end(), result: begin()); |
854 | } |
855 | |
856 | _GLIBCXX20_CONSTEXPR |
857 | vector(initializer_list<bool> __l, |
858 | const allocator_type& __a = allocator_type()) |
859 | : _Base(__a) |
860 | { |
861 | _M_initialize_range(__l.begin(), __l.end(), |
862 | random_access_iterator_tag()); |
863 | } |
864 | #endif |
865 | |
866 | #if __cplusplus >= 201103L |
867 | template<typename _InputIterator, |
868 | typename = std::_RequireInputIter<_InputIterator>> |
869 | _GLIBCXX20_CONSTEXPR |
870 | vector(_InputIterator __first, _InputIterator __last, |
871 | const allocator_type& __a = allocator_type()) |
872 | : _Base(__a) |
873 | { |
874 | _M_initialize_range(__first, __last, |
875 | std::__iterator_category(__first)); |
876 | } |
877 | #else |
878 | template<typename _InputIterator> |
879 | vector(_InputIterator __first, _InputIterator __last, |
880 | const allocator_type& __a = allocator_type()) |
881 | : _Base(__a) |
882 | { |
883 | // Check whether it's an integral type. If so, it's not an iterator. |
884 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
885 | _M_initialize_dispatch(__first, __last, _Integral()); |
886 | } |
887 | #endif |
888 | |
889 | _GLIBCXX20_CONSTEXPR |
890 | ~vector() _GLIBCXX_NOEXCEPT { } |
891 | |
892 | _GLIBCXX20_CONSTEXPR |
893 | vector& |
894 | operator=(const vector& __x) |
895 | { |
896 | if (&__x == this) |
897 | return *this; |
898 | #if __cplusplus >= 201103L |
899 | if (_Bit_alloc_traits::_S_propagate_on_copy_assign()) |
900 | { |
901 | if (this->_M_get_Bit_allocator() != __x._M_get_Bit_allocator()) |
902 | { |
903 | this->_M_deallocate(); |
904 | std::__alloc_on_copy(_M_get_Bit_allocator(), |
905 | __x._M_get_Bit_allocator()); |
906 | _M_initialize(n: __x.size()); |
907 | } |
908 | else |
909 | std::__alloc_on_copy(_M_get_Bit_allocator(), |
910 | __x._M_get_Bit_allocator()); |
911 | } |
912 | #endif |
913 | if (__x.size() > capacity()) |
914 | { |
915 | this->_M_deallocate(); |
916 | _M_initialize(n: __x.size()); |
917 | } |
918 | this->_M_impl._M_finish = _M_copy_aligned(first: __x.begin(), last: __x.end(), |
919 | result: begin()); |
920 | return *this; |
921 | } |
922 | |
923 | #if __cplusplus >= 201103L |
924 | _GLIBCXX20_CONSTEXPR |
925 | vector& |
926 | operator=(vector&& __x) noexcept(_Bit_alloc_traits::_S_nothrow_move()) |
927 | { |
928 | if (_Bit_alloc_traits::_S_propagate_on_move_assign() |
929 | || this->_M_get_Bit_allocator() == __x._M_get_Bit_allocator()) |
930 | { |
931 | this->_M_deallocate(); |
932 | this->_M_move_data(std::move(__x)); |
933 | std::__alloc_on_move(_M_get_Bit_allocator(), |
934 | __x._M_get_Bit_allocator()); |
935 | } |
936 | else |
937 | { |
938 | if (__x.size() > capacity()) |
939 | { |
940 | this->_M_deallocate(); |
941 | _M_initialize(n: __x.size()); |
942 | } |
943 | this->_M_impl._M_finish = _M_copy_aligned(first: __x.begin(), last: __x.end(), |
944 | result: begin()); |
945 | __x.clear(); |
946 | } |
947 | return *this; |
948 | } |
949 | |
950 | _GLIBCXX20_CONSTEXPR |
951 | vector& |
952 | operator=(initializer_list<bool> __l) |
953 | { |
954 | this->assign(__l.begin(), __l.end()); |
955 | return *this; |
956 | } |
957 | #endif |
958 | |
959 | // assign(), a generalized assignment member function. Two |
960 | // versions: one that takes a count, and one that takes a range. |
961 | // The range version is a member template, so we dispatch on whether |
962 | // or not the type is an integer. |
963 | _GLIBCXX20_CONSTEXPR |
964 | void |
965 | assign(size_type __n, const bool& __x) |
966 | { _M_fill_assign(__n, __x); } |
967 | |
968 | #if __cplusplus >= 201103L |
969 | template<typename _InputIterator, |
970 | typename = std::_RequireInputIter<_InputIterator>> |
971 | _GLIBCXX20_CONSTEXPR |
972 | void |
973 | assign(_InputIterator __first, _InputIterator __last) |
974 | { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } |
975 | #else |
976 | template<typename _InputIterator> |
977 | void |
978 | assign(_InputIterator __first, _InputIterator __last) |
979 | { |
980 | // Check whether it's an integral type. If so, it's not an iterator. |
981 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
982 | _M_assign_dispatch(__first, __last, _Integral()); |
983 | } |
984 | #endif |
985 | |
986 | #if __cplusplus >= 201103L |
987 | _GLIBCXX20_CONSTEXPR |
988 | void |
989 | assign(initializer_list<bool> __l) |
990 | { _M_assign_aux(__l.begin(), __l.end(), random_access_iterator_tag()); } |
991 | #endif |
992 | |
993 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
994 | iterator |
995 | begin() _GLIBCXX_NOEXCEPT |
996 | { return iterator(this->_M_impl._M_start._M_p, 0); } |
997 | |
998 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
999 | const_iterator |
1000 | begin() const _GLIBCXX_NOEXCEPT |
1001 | { return const_iterator(this->_M_impl._M_start._M_p, 0); } |
1002 | |
1003 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1004 | iterator |
1005 | end() _GLIBCXX_NOEXCEPT |
1006 | { return this->_M_impl._M_finish; } |
1007 | |
1008 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1009 | const_iterator |
1010 | end() const _GLIBCXX_NOEXCEPT |
1011 | { return this->_M_impl._M_finish; } |
1012 | |
1013 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1014 | reverse_iterator |
1015 | rbegin() _GLIBCXX_NOEXCEPT |
1016 | { return reverse_iterator(end()); } |
1017 | |
1018 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1019 | const_reverse_iterator |
1020 | rbegin() const _GLIBCXX_NOEXCEPT |
1021 | { return const_reverse_iterator(end()); } |
1022 | |
1023 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1024 | reverse_iterator |
1025 | rend() _GLIBCXX_NOEXCEPT |
1026 | { return reverse_iterator(begin()); } |
1027 | |
1028 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1029 | const_reverse_iterator |
1030 | rend() const _GLIBCXX_NOEXCEPT |
1031 | { return const_reverse_iterator(begin()); } |
1032 | |
1033 | #if __cplusplus >= 201103L |
1034 | [[__nodiscard__]] _GLIBCXX20_CONSTEXPR |
1035 | const_iterator |
1036 | cbegin() const noexcept |
1037 | { return const_iterator(this->_M_impl._M_start._M_p, 0); } |
1038 | |
1039 | [[__nodiscard__]] _GLIBCXX20_CONSTEXPR |
1040 | const_iterator |
1041 | cend() const noexcept |
1042 | { return this->_M_impl._M_finish; } |
1043 | |
1044 | [[__nodiscard__]] _GLIBCXX20_CONSTEXPR |
1045 | const_reverse_iterator |
1046 | crbegin() const noexcept |
1047 | { return const_reverse_iterator(end()); } |
1048 | |
1049 | [[__nodiscard__]] _GLIBCXX20_CONSTEXPR |
1050 | const_reverse_iterator |
1051 | crend() const noexcept |
1052 | { return const_reverse_iterator(begin()); } |
1053 | #endif |
1054 | |
1055 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1056 | size_type |
1057 | size() const _GLIBCXX_NOEXCEPT |
1058 | { return size_type(end() - begin()); } |
1059 | |
1060 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1061 | size_type |
1062 | max_size() const _GLIBCXX_NOEXCEPT |
1063 | { |
1064 | const size_type __isize = |
1065 | __gnu_cxx::__numeric_traits<difference_type>::__max |
1066 | - int(_S_word_bit) + 1; |
1067 | const size_type __asize |
1068 | = _Bit_alloc_traits::max_size(_M_get_Bit_allocator()); |
1069 | return (__asize <= __isize / int(_S_word_bit) |
1070 | ? __asize * int(_S_word_bit) : __isize); |
1071 | } |
1072 | |
1073 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1074 | size_type |
1075 | capacity() const _GLIBCXX_NOEXCEPT |
1076 | { return size_type(const_iterator(this->_M_impl._M_end_addr(), 0) |
1077 | - begin()); } |
1078 | |
1079 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1080 | bool |
1081 | empty() const _GLIBCXX_NOEXCEPT |
1082 | { return begin() == end(); } |
1083 | |
1084 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1085 | reference |
1086 | operator[](size_type __n) |
1087 | { return begin()[__n]; } |
1088 | |
1089 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1090 | const_reference |
1091 | operator[](size_type __n) const |
1092 | { return begin()[__n]; } |
1093 | |
1094 | protected: |
1095 | _GLIBCXX20_CONSTEXPR |
1096 | void |
1097 | _M_range_check(size_type __n) const |
1098 | { |
1099 | if (__n >= this->size()) |
1100 | __throw_out_of_range_fmt(__N("vector<bool>::_M_range_check: __n " |
1101 | "(which is %zu) >= this->size() " |
1102 | "(which is %zu)" ), |
1103 | __n, this->size()); |
1104 | } |
1105 | |
1106 | public: |
1107 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1108 | reference |
1109 | at(size_type __n) |
1110 | { |
1111 | _M_range_check(__n); |
1112 | return (*this)[__n]; |
1113 | } |
1114 | |
1115 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1116 | const_reference |
1117 | at(size_type __n) const |
1118 | { |
1119 | _M_range_check(__n); |
1120 | return (*this)[__n]; |
1121 | } |
1122 | |
1123 | _GLIBCXX20_CONSTEXPR |
1124 | void |
1125 | reserve(size_type __n) |
1126 | { |
1127 | if (__n > max_size()) |
1128 | __throw_length_error(__N("vector::reserve" )); |
1129 | if (capacity() < __n) |
1130 | _M_reallocate(__n); |
1131 | } |
1132 | |
1133 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1134 | reference |
1135 | front() |
1136 | { return *begin(); } |
1137 | |
1138 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1139 | const_reference |
1140 | front() const |
1141 | { return *begin(); } |
1142 | |
1143 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1144 | reference |
1145 | back() |
1146 | { return *(end() - 1); } |
1147 | |
1148 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1149 | const_reference |
1150 | back() const |
1151 | { return *(end() - 1); } |
1152 | |
1153 | _GLIBCXX20_CONSTEXPR |
1154 | void |
1155 | push_back(bool __x) |
1156 | { |
1157 | if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr()) |
1158 | *this->_M_impl._M_finish++ = __x; |
1159 | else |
1160 | _M_insert_aux(position: end(), __x); |
1161 | } |
1162 | |
1163 | _GLIBCXX20_CONSTEXPR |
1164 | void |
1165 | swap(vector& __x) _GLIBCXX_NOEXCEPT |
1166 | { |
1167 | #if __cplusplus >= 201103L |
1168 | __glibcxx_assert(_Bit_alloc_traits::propagate_on_container_swap::value |
1169 | || _M_get_Bit_allocator() == __x._M_get_Bit_allocator()); |
1170 | #endif |
1171 | this->_M_impl._M_swap_data(__x._M_impl); |
1172 | _Bit_alloc_traits::_S_on_swap(_M_get_Bit_allocator(), |
1173 | __x._M_get_Bit_allocator()); |
1174 | } |
1175 | |
1176 | // [23.2.5]/1, third-to-last entry in synopsis listing |
1177 | _GLIBCXX20_CONSTEXPR |
1178 | static void |
1179 | swap(reference __x, reference __y) _GLIBCXX_NOEXCEPT |
1180 | { |
1181 | bool __tmp = __x; |
1182 | __x = __y; |
1183 | __y = __tmp; |
1184 | } |
1185 | |
1186 | _GLIBCXX20_CONSTEXPR |
1187 | iterator |
1188 | #if __cplusplus >= 201103L |
1189 | insert(const_iterator __position, const bool& __x) |
1190 | #else |
1191 | insert(iterator __position, const bool& __x) |
1192 | #endif |
1193 | { |
1194 | const difference_type __n = __position - begin(); |
1195 | if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr() |
1196 | && __position == end()) |
1197 | *this->_M_impl._M_finish++ = __x; |
1198 | else |
1199 | _M_insert_aux(position: __position._M_const_cast(), __x); |
1200 | return begin() + __n; |
1201 | } |
1202 | |
1203 | #if _GLIBCXX_USE_DEPRECATED |
1204 | _GLIBCXX_DEPRECATED_SUGGEST("insert(position, false)" ) |
1205 | iterator |
1206 | insert(const_iterator __position) |
1207 | { return this->insert(__position._M_const_cast(), false); } |
1208 | #endif |
1209 | |
1210 | #if __cplusplus >= 201103L |
1211 | template<typename _InputIterator, |
1212 | typename = std::_RequireInputIter<_InputIterator>> |
1213 | _GLIBCXX20_CONSTEXPR |
1214 | iterator |
1215 | insert(const_iterator __position, |
1216 | _InputIterator __first, _InputIterator __last) |
1217 | { |
1218 | difference_type __offset = __position - cbegin(); |
1219 | _M_insert_range(__position._M_const_cast(), |
1220 | __first, __last, |
1221 | std::__iterator_category(__first)); |
1222 | return begin() + __offset; |
1223 | } |
1224 | #else |
1225 | template<typename _InputIterator> |
1226 | void |
1227 | insert(iterator __position, |
1228 | _InputIterator __first, _InputIterator __last) |
1229 | { |
1230 | // Check whether it's an integral type. If so, it's not an iterator. |
1231 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
1232 | _M_insert_dispatch(__position, __first, __last, _Integral()); |
1233 | } |
1234 | #endif |
1235 | |
1236 | #if __cplusplus >= 201103L |
1237 | _GLIBCXX20_CONSTEXPR |
1238 | iterator |
1239 | insert(const_iterator __position, size_type __n, const bool& __x) |
1240 | { |
1241 | difference_type __offset = __position - cbegin(); |
1242 | _M_fill_insert(position: __position._M_const_cast(), __n, __x); |
1243 | return begin() + __offset; |
1244 | } |
1245 | #else |
1246 | void |
1247 | insert(iterator __position, size_type __n, const bool& __x) |
1248 | { _M_fill_insert(__position, __n, __x); } |
1249 | #endif |
1250 | |
1251 | #if __cplusplus >= 201103L |
1252 | _GLIBCXX20_CONSTEXPR |
1253 | iterator |
1254 | insert(const_iterator __p, initializer_list<bool> __l) |
1255 | { return this->insert(__p, __l.begin(), __l.end()); } |
1256 | #endif |
1257 | |
1258 | _GLIBCXX20_CONSTEXPR |
1259 | void |
1260 | pop_back() |
1261 | { --this->_M_impl._M_finish; } |
1262 | |
1263 | _GLIBCXX20_CONSTEXPR |
1264 | iterator |
1265 | #if __cplusplus >= 201103L |
1266 | erase(const_iterator __position) |
1267 | #else |
1268 | erase(iterator __position) |
1269 | #endif |
1270 | { return _M_erase(__position._M_const_cast()); } |
1271 | |
1272 | _GLIBCXX20_CONSTEXPR |
1273 | iterator |
1274 | #if __cplusplus >= 201103L |
1275 | erase(const_iterator __first, const_iterator __last) |
1276 | #else |
1277 | erase(iterator __first, iterator __last) |
1278 | #endif |
1279 | { return _M_erase(__first._M_const_cast(), __last._M_const_cast()); } |
1280 | |
1281 | _GLIBCXX20_CONSTEXPR |
1282 | void |
1283 | resize(size_type __new_size, bool __x = bool()) |
1284 | { |
1285 | if (__new_size < size()) |
1286 | _M_erase_at_end(pos: begin() + difference_type(__new_size)); |
1287 | else |
1288 | insert(end(), __new_size - size(), __x); |
1289 | } |
1290 | |
1291 | #if __cplusplus >= 201103L |
1292 | _GLIBCXX20_CONSTEXPR |
1293 | void |
1294 | shrink_to_fit() |
1295 | { _M_shrink_to_fit(); } |
1296 | #endif |
1297 | |
1298 | _GLIBCXX20_CONSTEXPR |
1299 | void |
1300 | flip() _GLIBCXX_NOEXCEPT |
1301 | { |
1302 | _Bit_type * const __end = this->_M_impl._M_end_addr(); |
1303 | for (_Bit_type * __p = this->_M_impl._M_start._M_p; __p != __end; ++__p) |
1304 | *__p = ~*__p; |
1305 | } |
1306 | |
1307 | _GLIBCXX20_CONSTEXPR |
1308 | void |
1309 | clear() _GLIBCXX_NOEXCEPT |
1310 | { _M_erase_at_end(pos: begin()); } |
1311 | |
1312 | #if __cplusplus >= 201103L |
1313 | template<typename... _Args> |
1314 | #if __cplusplus > 201402L |
1315 | _GLIBCXX20_CONSTEXPR |
1316 | reference |
1317 | #else |
1318 | void |
1319 | #endif |
1320 | emplace_back(_Args&&... __args) |
1321 | { |
1322 | push_back(x: bool(__args...)); |
1323 | #if __cplusplus > 201402L |
1324 | return back(); |
1325 | #endif |
1326 | } |
1327 | |
1328 | template<typename... _Args> |
1329 | _GLIBCXX20_CONSTEXPR |
1330 | iterator |
1331 | emplace(const_iterator __pos, _Args&&... __args) |
1332 | { return insert(__pos, bool(__args...)); } |
1333 | #endif |
1334 | |
1335 | protected: |
1336 | // Precondition: __first._M_offset == 0 && __result._M_offset == 0. |
1337 | _GLIBCXX20_CONSTEXPR |
1338 | iterator |
1339 | _M_copy_aligned(const_iterator __first, const_iterator __last, |
1340 | iterator __result) |
1341 | { |
1342 | _Bit_type* __q = std::copy(first: __first._M_p, last: __last._M_p, result: __result._M_p); |
1343 | return std::copy(first: const_iterator(__last._M_p, 0), __last, |
1344 | result: iterator(__q, 0)); |
1345 | } |
1346 | |
1347 | _GLIBCXX20_CONSTEXPR |
1348 | void |
1349 | _M_initialize(size_type __n) |
1350 | { |
1351 | if (__n) |
1352 | { |
1353 | _Bit_pointer __q = this->_M_allocate(__n); |
1354 | this->_M_impl._M_end_of_storage = __q + _S_nword(__n); |
1355 | iterator __start = iterator(std::__addressof(*__q), 0); |
1356 | this->_M_impl._M_start = __start; |
1357 | this->_M_impl._M_finish = __start + difference_type(__n); |
1358 | } |
1359 | } |
1360 | |
1361 | _GLIBCXX20_CONSTEXPR |
1362 | void |
1363 | _M_initialize_value(bool __x) _GLIBCXX_NOEXCEPT |
1364 | { |
1365 | if (_Bit_type* __p = this->_M_impl._M_start._M_p) |
1366 | __fill_bvector_n(__p, this->_M_impl._M_end_addr() - __p, __x); |
1367 | } |
1368 | |
1369 | _GLIBCXX20_CONSTEXPR |
1370 | void |
1371 | _M_reallocate(size_type __n); |
1372 | |
1373 | #if __cplusplus >= 201103L |
1374 | _GLIBCXX20_CONSTEXPR |
1375 | bool |
1376 | _M_shrink_to_fit(); |
1377 | #endif |
1378 | |
1379 | #if __cplusplus < 201103L |
1380 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
1381 | // 438. Ambiguity in the "do the right thing" clause |
1382 | template<typename _Integer> |
1383 | void |
1384 | _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type) |
1385 | { |
1386 | _M_initialize(static_cast<size_type>(__n)); |
1387 | _M_initialize_value(__x); |
1388 | } |
1389 | |
1390 | template<typename _InputIterator> |
1391 | void |
1392 | _M_initialize_dispatch(_InputIterator __first, _InputIterator __last, |
1393 | __false_type) |
1394 | { _M_initialize_range(__first, __last, |
1395 | std::__iterator_category(__first)); } |
1396 | #endif |
1397 | |
1398 | template<typename _InputIterator> |
1399 | _GLIBCXX20_CONSTEXPR |
1400 | void |
1401 | _M_initialize_range(_InputIterator __first, _InputIterator __last, |
1402 | std::input_iterator_tag) |
1403 | { |
1404 | for (; __first != __last; ++__first) |
1405 | push_back(x: *__first); |
1406 | } |
1407 | |
1408 | template<typename _ForwardIterator> |
1409 | _GLIBCXX20_CONSTEXPR |
1410 | void |
1411 | _M_initialize_range(_ForwardIterator __first, _ForwardIterator __last, |
1412 | std::forward_iterator_tag) |
1413 | { |
1414 | const size_type __n = std::distance(__first, __last); |
1415 | _M_initialize(__n); |
1416 | std::copy(__first, __last, begin()); |
1417 | } |
1418 | |
1419 | #if __cplusplus < 201103L |
1420 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
1421 | // 438. Ambiguity in the "do the right thing" clause |
1422 | template<typename _Integer> |
1423 | void |
1424 | _M_assign_dispatch(_Integer __n, _Integer __val, __true_type) |
1425 | { _M_fill_assign(__n, __val); } |
1426 | |
1427 | template<class _InputIterator> |
1428 | void |
1429 | _M_assign_dispatch(_InputIterator __first, _InputIterator __last, |
1430 | __false_type) |
1431 | { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } |
1432 | #endif |
1433 | |
1434 | _GLIBCXX20_CONSTEXPR |
1435 | void |
1436 | _M_fill_assign(size_t __n, bool __x) |
1437 | { |
1438 | if (__n > size()) |
1439 | { |
1440 | _M_initialize_value(__x); |
1441 | insert(end(), __n - size(), __x); |
1442 | } |
1443 | else |
1444 | { |
1445 | _M_erase_at_end(pos: begin() + __n); |
1446 | _M_initialize_value(__x); |
1447 | } |
1448 | } |
1449 | |
1450 | template<typename _InputIterator> |
1451 | _GLIBCXX20_CONSTEXPR |
1452 | void |
1453 | _M_assign_aux(_InputIterator __first, _InputIterator __last, |
1454 | std::input_iterator_tag) |
1455 | { |
1456 | iterator __cur = begin(); |
1457 | for (; __first != __last && __cur != end(); ++__cur, (void)++__first) |
1458 | *__cur = *__first; |
1459 | if (__first == __last) |
1460 | _M_erase_at_end(pos: __cur); |
1461 | else |
1462 | insert(end(), __first, __last); |
1463 | } |
1464 | |
1465 | template<typename _ForwardIterator> |
1466 | _GLIBCXX20_CONSTEXPR |
1467 | void |
1468 | _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last, |
1469 | std::forward_iterator_tag) |
1470 | { |
1471 | const size_type __len = std::distance(__first, __last); |
1472 | if (__len < size()) |
1473 | _M_erase_at_end(pos: std::copy(__first, __last, begin())); |
1474 | else |
1475 | { |
1476 | _ForwardIterator __mid = __first; |
1477 | std::advance(__mid, size()); |
1478 | std::copy(__first, __mid, begin()); |
1479 | insert(end(), __mid, __last); |
1480 | } |
1481 | } |
1482 | |
1483 | #if __cplusplus < 201103L |
1484 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
1485 | // 438. Ambiguity in the "do the right thing" clause |
1486 | template<typename _Integer> |
1487 | void |
1488 | _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x, |
1489 | __true_type) |
1490 | { _M_fill_insert(__pos, __n, __x); } |
1491 | |
1492 | template<typename _InputIterator> |
1493 | void |
1494 | _M_insert_dispatch(iterator __pos, |
1495 | _InputIterator __first, _InputIterator __last, |
1496 | __false_type) |
1497 | { _M_insert_range(__pos, __first, __last, |
1498 | std::__iterator_category(__first)); } |
1499 | #endif |
1500 | |
1501 | _GLIBCXX20_CONSTEXPR |
1502 | void |
1503 | _M_fill_insert(iterator __position, size_type __n, bool __x); |
1504 | |
1505 | template<typename _InputIterator> |
1506 | _GLIBCXX20_CONSTEXPR |
1507 | void |
1508 | _M_insert_range(iterator __pos, _InputIterator __first, |
1509 | _InputIterator __last, std::input_iterator_tag) |
1510 | { |
1511 | for (; __first != __last; ++__first) |
1512 | { |
1513 | __pos = insert(__pos, *__first); |
1514 | ++__pos; |
1515 | } |
1516 | } |
1517 | |
1518 | template<typename _ForwardIterator> |
1519 | _GLIBCXX20_CONSTEXPR |
1520 | void |
1521 | _M_insert_range(iterator __position, _ForwardIterator __first, |
1522 | _ForwardIterator __last, std::forward_iterator_tag); |
1523 | |
1524 | _GLIBCXX20_CONSTEXPR |
1525 | void |
1526 | _M_insert_aux(iterator __position, bool __x); |
1527 | |
1528 | _GLIBCXX20_CONSTEXPR |
1529 | size_type |
1530 | _M_check_len(size_type __n, const char* __s) const |
1531 | { |
1532 | if (max_size() - size() < __n) |
1533 | __throw_length_error(__N(__s)); |
1534 | |
1535 | const size_type __len = size() + std::max(size(), __n); |
1536 | return (__len < size() || __len > max_size()) ? max_size() : __len; |
1537 | } |
1538 | |
1539 | _GLIBCXX20_CONSTEXPR |
1540 | void |
1541 | _M_erase_at_end(iterator __pos) |
1542 | { this->_M_impl._M_finish = __pos; } |
1543 | |
1544 | _GLIBCXX20_CONSTEXPR |
1545 | iterator |
1546 | _M_erase(iterator __pos); |
1547 | |
1548 | _GLIBCXX20_CONSTEXPR |
1549 | iterator |
1550 | _M_erase(iterator __first, iterator __last); |
1551 | |
1552 | protected: |
1553 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
1554 | // DR 464. Suggestion for new member functions in standard containers. |
1555 | // N.B. DR 464 says nothing about vector<bool> but we need something |
1556 | // here due to the using-declaration in __gnu_debug::vector. |
1557 | // vector class. |
1558 | #if __cplusplus >= 201103L |
1559 | void data() = delete; |
1560 | #else |
1561 | void data() { } |
1562 | #endif |
1563 | }; |
1564 | |
1565 | _GLIBCXX_END_NAMESPACE_CONTAINER |
1566 | |
1567 | // Fill a partial word. |
1568 | _GLIBCXX20_CONSTEXPR |
1569 | inline void |
1570 | __fill_bvector(_Bit_type* __v, unsigned int __first, unsigned int __last, |
1571 | bool __x) _GLIBCXX_NOEXCEPT |
1572 | { |
1573 | const _Bit_type __fmask = ~0ul << __first; |
1574 | const _Bit_type __lmask = ~0ul >> (_S_word_bit - __last); |
1575 | const _Bit_type __mask = __fmask & __lmask; |
1576 | |
1577 | if (__x) |
1578 | *__v |= __mask; |
1579 | else |
1580 | *__v &= ~__mask; |
1581 | } |
1582 | |
1583 | // Fill N full words, as if using memset, but usable in constant expressions. |
1584 | __attribute__((__nonnull__)) |
1585 | _GLIBCXX20_CONSTEXPR |
1586 | inline void |
1587 | __fill_bvector_n(_Bit_type* __p, size_t __n, bool __x) _GLIBCXX_NOEXCEPT |
1588 | { |
1589 | #if __cpp_lib_is_constant_evaluated |
1590 | if (std::is_constant_evaluated()) |
1591 | { |
1592 | for (size_t __i = 0; __i < __n; ++__i) |
1593 | __p[__i] = __x ? ~0ul : 0ul; |
1594 | return; |
1595 | } |
1596 | #endif |
1597 | __builtin_memset(__p, __x ? ~0 : 0, __n * sizeof(_Bit_type)); |
1598 | } |
1599 | |
1600 | |
1601 | _GLIBCXX20_CONSTEXPR |
1602 | inline void |
1603 | __fill_a1(_GLIBCXX_STD_C::_Bit_iterator __first, |
1604 | _GLIBCXX_STD_C::_Bit_iterator __last, const bool& __x) |
1605 | { |
1606 | if (__first._M_p != __last._M_p) |
1607 | { |
1608 | _Bit_type* __first_p = __first._M_p; |
1609 | if (__first._M_offset != 0) |
1610 | __fill_bvector(v: __first_p++, first: __first._M_offset, last: _S_word_bit, __x); |
1611 | |
1612 | __fill_bvector_n(p: __first_p, n: __last._M_p - __first_p, __x); |
1613 | |
1614 | if (__last._M_offset != 0) |
1615 | __fill_bvector(v: __last._M_p, first: 0, last: __last._M_offset, __x); |
1616 | } |
1617 | else if (__first._M_offset != __last._M_offset) |
1618 | __fill_bvector(v: __first._M_p, first: __first._M_offset, last: __last._M_offset, __x); |
1619 | } |
1620 | |
1621 | #if __cplusplus >= 201103L |
1622 | // DR 1182. |
1623 | /// std::hash specialization for vector<bool>. |
1624 | template<typename _Alloc> |
1625 | struct hash<_GLIBCXX_STD_C::vector<bool, _Alloc>> |
1626 | : public __hash_base<size_t, _GLIBCXX_STD_C::vector<bool, _Alloc>> |
1627 | { |
1628 | size_t |
1629 | operator()(const _GLIBCXX_STD_C::vector<bool, _Alloc>&) const noexcept; |
1630 | }; |
1631 | #endif // C++11 |
1632 | |
1633 | _GLIBCXX_END_NAMESPACE_VERSION |
1634 | } // namespace std |
1635 | |
1636 | #endif |
1637 | |