Line data Source code
1 : // vector<bool> specialization -*- C++ -*-
2 :
3 : // Copyright (C) 2001-2013 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 : #if __cplusplus >= 201103L
60 : #include <initializer_list>
61 : #endif
62 :
63 : namespace std _GLIBCXX_VISIBILITY(default)
64 : {
65 : _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
66 :
67 : typedef unsigned long _Bit_type;
68 : enum { _S_word_bit = int(__CHAR_BIT__ * sizeof(_Bit_type)) };
69 :
70 : struct _Bit_reference
71 : {
72 : _Bit_type * _M_p;
73 : _Bit_type _M_mask;
74 :
75 : _Bit_reference(_Bit_type * __x, _Bit_type __y)
76 0 : : _M_p(__x), _M_mask(__y) { }
77 :
78 : _Bit_reference() _GLIBCXX_NOEXCEPT : _M_p(0), _M_mask(0) { }
79 :
80 : operator bool() const _GLIBCXX_NOEXCEPT
81 0 : { return !!(*_M_p & _M_mask); }
82 :
83 : _Bit_reference&
84 : operator=(bool __x) _GLIBCXX_NOEXCEPT
85 : {
86 : if (__x)
87 : *_M_p |= _M_mask;
88 : else
89 : *_M_p &= ~_M_mask;
90 : return *this;
91 : }
92 :
93 : _Bit_reference&
94 : operator=(const _Bit_reference& __x) _GLIBCXX_NOEXCEPT
95 : { return *this = bool(__x); }
96 :
97 : bool
98 : operator==(const _Bit_reference& __x) const
99 : { return bool(*this) == bool(__x); }
100 :
101 : bool
102 : operator<(const _Bit_reference& __x) const
103 : { return !bool(*this) && bool(__x); }
104 :
105 : void
106 : flip() _GLIBCXX_NOEXCEPT
107 : { *_M_p ^= _M_mask; }
108 : };
109 :
110 : #if __cplusplus >= 201103L
111 : inline void
112 : swap(_Bit_reference __x, _Bit_reference __y) noexcept
113 : {
114 : bool __tmp = __x;
115 : __x = __y;
116 : __y = __tmp;
117 : }
118 :
119 : inline void
120 : swap(_Bit_reference __x, bool& __y) noexcept
121 : {
122 : bool __tmp = __x;
123 : __x = __y;
124 : __y = __tmp;
125 : }
126 :
127 : inline void
128 : swap(bool& __x, _Bit_reference __y) noexcept
129 : {
130 : bool __tmp = __x;
131 : __x = __y;
132 : __y = __tmp;
133 : }
134 : #endif
135 :
136 : struct _Bit_iterator_base
137 : : public std::iterator<std::random_access_iterator_tag, bool>
138 : {
139 : _Bit_type * _M_p;
140 : unsigned int _M_offset;
141 :
142 : _Bit_iterator_base(_Bit_type * __x, unsigned int __y)
143 0 : : _M_p(__x), _M_offset(__y) { }
144 :
145 : void
146 : _M_bump_up()
147 : {
148 : if (_M_offset++ == int(_S_word_bit) - 1)
149 : {
150 : _M_offset = 0;
151 : ++_M_p;
152 : }
153 : }
154 :
155 : void
156 : _M_bump_down()
157 : {
158 : if (_M_offset-- == 0)
159 : {
160 : _M_offset = int(_S_word_bit) - 1;
161 : --_M_p;
162 : }
163 : }
164 :
165 : void
166 : _M_incr(ptrdiff_t __i)
167 : {
168 : difference_type __n = __i + _M_offset;
169 : _M_p += __n / int(_S_word_bit);
170 : __n = __n % int(_S_word_bit);
171 : if (__n < 0)
172 : {
173 : __n += int(_S_word_bit);
174 : --_M_p;
175 : }
176 : _M_offset = static_cast<unsigned int>(__n);
177 : }
178 :
179 : bool
180 : operator==(const _Bit_iterator_base& __i) const
181 : { return _M_p == __i._M_p && _M_offset == __i._M_offset; }
182 :
183 : bool
184 : operator<(const _Bit_iterator_base& __i) const
185 : {
186 : return _M_p < __i._M_p
187 : || (_M_p == __i._M_p && _M_offset < __i._M_offset);
188 : }
189 :
190 : bool
191 : operator!=(const _Bit_iterator_base& __i) const
192 : { return !(*this == __i); }
193 :
194 : bool
195 : operator>(const _Bit_iterator_base& __i) const
196 : { return __i < *this; }
197 :
198 : bool
199 : operator<=(const _Bit_iterator_base& __i) const
200 : { return !(__i < *this); }
201 :
202 : bool
203 : operator>=(const _Bit_iterator_base& __i) const
204 : { return !(*this < __i); }
205 : };
206 :
207 : inline ptrdiff_t
208 : operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
209 : {
210 : return (int(_S_word_bit) * (__x._M_p - __y._M_p)
211 : + __x._M_offset - __y._M_offset);
212 : }
213 :
214 : struct _Bit_iterator : public _Bit_iterator_base
215 : {
216 : typedef _Bit_reference reference;
217 : typedef _Bit_reference* pointer;
218 : typedef _Bit_iterator iterator;
219 :
220 : _Bit_iterator() : _Bit_iterator_base(0, 0) { }
221 :
222 : _Bit_iterator(_Bit_type * __x, unsigned int __y)
223 : : _Bit_iterator_base(__x, __y) { }
224 :
225 : reference
226 : operator*() const
227 : { return reference(_M_p, 1UL << _M_offset); }
228 :
229 : iterator&
230 : operator++()
231 : {
232 : _M_bump_up();
233 : return *this;
234 : }
235 :
236 : iterator
237 : operator++(int)
238 : {
239 : iterator __tmp = *this;
240 : _M_bump_up();
241 : return __tmp;
242 : }
243 :
244 : iterator&
245 : operator--()
246 : {
247 : _M_bump_down();
248 : return *this;
249 : }
250 :
251 : iterator
252 : operator--(int)
253 : {
254 : iterator __tmp = *this;
255 : _M_bump_down();
256 : return __tmp;
257 : }
258 :
259 : iterator&
260 : operator+=(difference_type __i)
261 : {
262 : _M_incr(__i);
263 : return *this;
264 : }
265 :
266 : iterator&
267 : operator-=(difference_type __i)
268 : {
269 : *this += -__i;
270 : return *this;
271 : }
272 :
273 : iterator
274 : operator+(difference_type __i) const
275 : {
276 : iterator __tmp = *this;
277 : return __tmp += __i;
278 : }
279 :
280 : iterator
281 : operator-(difference_type __i) const
282 : {
283 : iterator __tmp = *this;
284 : return __tmp -= __i;
285 : }
286 :
287 : reference
288 : operator[](difference_type __i) const
289 : { return *(*this + __i); }
290 : };
291 :
292 : inline _Bit_iterator
293 : operator+(ptrdiff_t __n, const _Bit_iterator& __x)
294 : { return __x + __n; }
295 :
296 : struct _Bit_const_iterator : public _Bit_iterator_base
297 : {
298 : typedef bool reference;
299 : typedef bool const_reference;
300 : typedef const bool* pointer;
301 : typedef _Bit_const_iterator const_iterator;
302 :
303 : _Bit_const_iterator() : _Bit_iterator_base(0, 0) { }
304 :
305 : _Bit_const_iterator(_Bit_type * __x, unsigned int __y)
306 0 : : _Bit_iterator_base(__x, __y) { }
307 :
308 : _Bit_const_iterator(const _Bit_iterator& __x)
309 : : _Bit_iterator_base(__x._M_p, __x._M_offset) { }
310 :
311 : const_reference
312 : operator*() const
313 0 : { return _Bit_reference(_M_p, 1UL << _M_offset); }
314 :
315 : const_iterator&
316 : operator++()
317 : {
318 : _M_bump_up();
319 : return *this;
320 : }
321 :
322 : const_iterator
323 : operator++(int)
324 : {
325 : const_iterator __tmp = *this;
326 : _M_bump_up();
327 : return __tmp;
328 : }
329 :
330 : const_iterator&
331 : operator--()
332 : {
333 : _M_bump_down();
334 : return *this;
335 : }
336 :
337 : const_iterator
338 : operator--(int)
339 : {
340 : const_iterator __tmp = *this;
341 : _M_bump_down();
342 : return __tmp;
343 : }
344 :
345 : const_iterator&
346 : operator+=(difference_type __i)
347 : {
348 : _M_incr(__i);
349 : return *this;
350 : }
351 :
352 : const_iterator&
353 : operator-=(difference_type __i)
354 : {
355 : *this += -__i;
356 : return *this;
357 : }
358 :
359 : const_iterator
360 : operator+(difference_type __i) const
361 : {
362 : const_iterator __tmp = *this;
363 : return __tmp += __i;
364 : }
365 :
366 : const_iterator
367 : operator-(difference_type __i) const
368 : {
369 : const_iterator __tmp = *this;
370 : return __tmp -= __i;
371 : }
372 :
373 : const_reference
374 : operator[](difference_type __i) const
375 : { return *(*this + __i); }
376 : };
377 :
378 : inline _Bit_const_iterator
379 : operator+(ptrdiff_t __n, const _Bit_const_iterator& __x)
380 : { return __x + __n; }
381 :
382 : inline void
383 : __fill_bvector(_Bit_iterator __first, _Bit_iterator __last, bool __x)
384 : {
385 : for (; __first != __last; ++__first)
386 : *__first = __x;
387 : }
388 :
389 : inline void
390 : fill(_Bit_iterator __first, _Bit_iterator __last, const bool& __x)
391 : {
392 : if (__first._M_p != __last._M_p)
393 : {
394 : std::fill(__first._M_p + 1, __last._M_p, __x ? ~0 : 0);
395 : __fill_bvector(__first, _Bit_iterator(__first._M_p + 1, 0), __x);
396 : __fill_bvector(_Bit_iterator(__last._M_p, 0), __last, __x);
397 : }
398 : else
399 : __fill_bvector(__first, __last, __x);
400 : }
401 :
402 : template<typename _Alloc>
403 : struct _Bvector_base
404 : {
405 : typedef typename _Alloc::template rebind<_Bit_type>::other
406 : _Bit_alloc_type;
407 :
408 : struct _Bvector_impl
409 : : public _Bit_alloc_type
410 : {
411 : _Bit_iterator _M_start;
412 : _Bit_iterator _M_finish;
413 : _Bit_type* _M_end_of_storage;
414 :
415 : _Bvector_impl()
416 : : _Bit_alloc_type(), _M_start(), _M_finish(), _M_end_of_storage(0)
417 : { }
418 :
419 : _Bvector_impl(const _Bit_alloc_type& __a)
420 : : _Bit_alloc_type(__a), _M_start(), _M_finish(), _M_end_of_storage(0)
421 : { }
422 :
423 : #if __cplusplus >= 201103L
424 : _Bvector_impl(_Bit_alloc_type&& __a)
425 : : _Bit_alloc_type(std::move(__a)), _M_start(), _M_finish(),
426 : _M_end_of_storage(0)
427 : { }
428 : #endif
429 : };
430 :
431 : public:
432 : typedef _Alloc allocator_type;
433 :
434 : _Bit_alloc_type&
435 : _M_get_Bit_allocator() _GLIBCXX_NOEXCEPT
436 : { return *static_cast<_Bit_alloc_type*>(&this->_M_impl); }
437 :
438 : const _Bit_alloc_type&
439 : _M_get_Bit_allocator() const _GLIBCXX_NOEXCEPT
440 : { return *static_cast<const _Bit_alloc_type*>(&this->_M_impl); }
441 :
442 : allocator_type
443 : get_allocator() const _GLIBCXX_NOEXCEPT
444 : { return allocator_type(_M_get_Bit_allocator()); }
445 :
446 : _Bvector_base()
447 : : _M_impl() { }
448 :
449 : _Bvector_base(const allocator_type& __a)
450 : : _M_impl(__a) { }
451 :
452 : #if __cplusplus >= 201103L
453 : _Bvector_base(_Bvector_base&& __x) noexcept
454 : : _M_impl(std::move(__x._M_get_Bit_allocator()))
455 : {
456 : this->_M_impl._M_start = __x._M_impl._M_start;
457 : this->_M_impl._M_finish = __x._M_impl._M_finish;
458 : this->_M_impl._M_end_of_storage = __x._M_impl._M_end_of_storage;
459 : __x._M_impl._M_start = _Bit_iterator();
460 : __x._M_impl._M_finish = _Bit_iterator();
461 : __x._M_impl._M_end_of_storage = 0;
462 : }
463 : #endif
464 :
465 : ~_Bvector_base()
466 : { this->_M_deallocate(); }
467 :
468 : protected:
469 : _Bvector_impl _M_impl;
470 :
471 : _Bit_type*
472 : _M_allocate(size_t __n)
473 : { return _M_impl.allocate(_S_nword(__n)); }
474 :
475 : void
476 : _M_deallocate()
477 : {
478 : if (_M_impl._M_start._M_p)
479 : _M_impl.deallocate(_M_impl._M_start._M_p,
480 : _M_impl._M_end_of_storage - _M_impl._M_start._M_p);
481 : }
482 :
483 : static size_t
484 : _S_nword(size_t __n)
485 : { return (__n + int(_S_word_bit) - 1) / int(_S_word_bit); }
486 : };
487 :
488 : _GLIBCXX_END_NAMESPACE_CONTAINER
489 : } // namespace std
490 :
491 : // Declare a partial specialization of vector<T, Alloc>.
492 : #include <bits/stl_vector.h>
493 :
494 : namespace std _GLIBCXX_VISIBILITY(default)
495 : {
496 : _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
497 :
498 : /**
499 : * @brief A specialization of vector for booleans which offers fixed time
500 : * access to individual elements in any order.
501 : *
502 : * @ingroup sequences
503 : *
504 : * @tparam _Alloc Allocator type.
505 : *
506 : * Note that vector<bool> does not actually meet the requirements for being
507 : * a container. This is because the reference and pointer types are not
508 : * really references and pointers to bool. See DR96 for details. @see
509 : * vector for function documentation.
510 : *
511 : * In some terminology a %vector can be described as a dynamic
512 : * C-style array, it offers fast and efficient access to individual
513 : * elements in any order and saves the user from worrying about
514 : * memory and size allocation. Subscripting ( @c [] ) access is
515 : * also provided as with C-style arrays.
516 : */
517 : template<typename _Alloc>
518 : class vector<bool, _Alloc> : protected _Bvector_base<_Alloc>
519 : {
520 : typedef _Bvector_base<_Alloc> _Base;
521 :
522 : #if __cplusplus >= 201103L
523 : template<typename> friend struct hash;
524 : #endif
525 :
526 : public:
527 : typedef bool value_type;
528 : typedef size_t size_type;
529 : typedef ptrdiff_t difference_type;
530 : typedef _Bit_reference reference;
531 : typedef bool const_reference;
532 : typedef _Bit_reference* pointer;
533 : typedef const bool* const_pointer;
534 : typedef _Bit_iterator iterator;
535 : typedef _Bit_const_iterator const_iterator;
536 : typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
537 : typedef std::reverse_iterator<iterator> reverse_iterator;
538 : typedef _Alloc allocator_type;
539 :
540 : allocator_type get_allocator() const
541 : { return _Base::get_allocator(); }
542 :
543 : protected:
544 : using _Base::_M_allocate;
545 : using _Base::_M_deallocate;
546 : using _Base::_S_nword;
547 : using _Base::_M_get_Bit_allocator;
548 :
549 : public:
550 : vector()
551 : : _Base() { }
552 :
553 : explicit
554 : vector(const allocator_type& __a)
555 : : _Base(__a) { }
556 :
557 : #if __cplusplus >= 201103L
558 : explicit
559 : vector(size_type __n, const allocator_type& __a = allocator_type())
560 : : vector(__n, false, __a)
561 : { }
562 :
563 : vector(size_type __n, const bool& __value,
564 : const allocator_type& __a = allocator_type())
565 : : _Base(__a)
566 : {
567 : _M_initialize(__n);
568 : std::fill(this->_M_impl._M_start._M_p, this->_M_impl._M_end_of_storage,
569 : __value ? ~0 : 0);
570 : }
571 : #else
572 : explicit
573 : vector(size_type __n, const bool& __value = bool(),
574 : const allocator_type& __a = allocator_type())
575 : : _Base(__a)
576 : {
577 : _M_initialize(__n);
578 : std::fill(this->_M_impl._M_start._M_p, this->_M_impl._M_end_of_storage,
579 : __value ? ~0 : 0);
580 : }
581 : #endif
582 :
583 : vector(const vector& __x)
584 : : _Base(__x._M_get_Bit_allocator())
585 : {
586 : _M_initialize(__x.size());
587 : _M_copy_aligned(__x.begin(), __x.end(), this->_M_impl._M_start);
588 : }
589 :
590 : #if __cplusplus >= 201103L
591 : vector(vector&& __x) noexcept
592 : : _Base(std::move(__x)) { }
593 :
594 : vector(initializer_list<bool> __l,
595 : const allocator_type& __a = allocator_type())
596 : : _Base(__a)
597 : {
598 : _M_initialize_range(__l.begin(), __l.end(),
599 : random_access_iterator_tag());
600 : }
601 : #endif
602 :
603 : #if __cplusplus >= 201103L
604 : template<typename _InputIterator,
605 : typename = std::_RequireInputIter<_InputIterator>>
606 : vector(_InputIterator __first, _InputIterator __last,
607 : const allocator_type& __a = allocator_type())
608 : : _Base(__a)
609 : { _M_initialize_dispatch(__first, __last, __false_type()); }
610 : #else
611 : template<typename _InputIterator>
612 : vector(_InputIterator __first, _InputIterator __last,
613 : const allocator_type& __a = allocator_type())
614 : : _Base(__a)
615 : {
616 : typedef typename std::__is_integer<_InputIterator>::__type _Integral;
617 : _M_initialize_dispatch(__first, __last, _Integral());
618 : }
619 : #endif
620 :
621 : ~vector() _GLIBCXX_NOEXCEPT { }
622 :
623 : vector&
624 : operator=(const vector& __x)
625 : {
626 : if (&__x == this)
627 : return *this;
628 : if (__x.size() > capacity())
629 : {
630 : this->_M_deallocate();
631 : _M_initialize(__x.size());
632 : }
633 : this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(),
634 : begin());
635 : return *this;
636 : }
637 :
638 : #if __cplusplus >= 201103L
639 : vector&
640 : operator=(vector&& __x)
641 : {
642 : // NB: DR 1204.
643 : // NB: DR 675.
644 : this->clear();
645 : this->swap(__x);
646 : return *this;
647 : }
648 :
649 : vector&
650 : operator=(initializer_list<bool> __l)
651 : {
652 : this->assign (__l.begin(), __l.end());
653 : return *this;
654 : }
655 : #endif
656 :
657 : // assign(), a generalized assignment member function. Two
658 : // versions: one that takes a count, and one that takes a range.
659 : // The range version is a member template, so we dispatch on whether
660 : // or not the type is an integer.
661 : void
662 : assign(size_type __n, const bool& __x)
663 : { _M_fill_assign(__n, __x); }
664 :
665 : #if __cplusplus >= 201103L
666 : template<typename _InputIterator,
667 : typename = std::_RequireInputIter<_InputIterator>>
668 : void
669 : assign(_InputIterator __first, _InputIterator __last)
670 : { _M_assign_dispatch(__first, __last, __false_type()); }
671 : #else
672 : template<typename _InputIterator>
673 : void
674 : assign(_InputIterator __first, _InputIterator __last)
675 : {
676 : typedef typename std::__is_integer<_InputIterator>::__type _Integral;
677 : _M_assign_dispatch(__first, __last, _Integral());
678 : }
679 : #endif
680 :
681 : #if __cplusplus >= 201103L
682 : void
683 : assign(initializer_list<bool> __l)
684 : { this->assign(__l.begin(), __l.end()); }
685 : #endif
686 :
687 : iterator
688 : begin() _GLIBCXX_NOEXCEPT
689 : { return this->_M_impl._M_start; }
690 :
691 : const_iterator
692 : begin() const _GLIBCXX_NOEXCEPT
693 : { return this->_M_impl._M_start; }
694 :
695 : iterator
696 : end() _GLIBCXX_NOEXCEPT
697 : { return this->_M_impl._M_finish; }
698 :
699 : const_iterator
700 : end() const _GLIBCXX_NOEXCEPT
701 : { return this->_M_impl._M_finish; }
702 :
703 : reverse_iterator
704 : rbegin() _GLIBCXX_NOEXCEPT
705 : { return reverse_iterator(end()); }
706 :
707 : const_reverse_iterator
708 : rbegin() const _GLIBCXX_NOEXCEPT
709 : { return const_reverse_iterator(end()); }
710 :
711 : reverse_iterator
712 : rend() _GLIBCXX_NOEXCEPT
713 : { return reverse_iterator(begin()); }
714 :
715 : const_reverse_iterator
716 : rend() const _GLIBCXX_NOEXCEPT
717 : { return const_reverse_iterator(begin()); }
718 :
719 : #if __cplusplus >= 201103L
720 : const_iterator
721 : cbegin() const noexcept
722 : { return this->_M_impl._M_start; }
723 :
724 : const_iterator
725 : cend() const noexcept
726 : { return this->_M_impl._M_finish; }
727 :
728 : const_reverse_iterator
729 : crbegin() const noexcept
730 : { return const_reverse_iterator(end()); }
731 :
732 : const_reverse_iterator
733 : crend() const noexcept
734 : { return const_reverse_iterator(begin()); }
735 : #endif
736 :
737 : size_type
738 : size() const _GLIBCXX_NOEXCEPT
739 : { return size_type(end() - begin()); }
740 :
741 : size_type
742 : max_size() const _GLIBCXX_NOEXCEPT
743 : {
744 : const size_type __isize =
745 : __gnu_cxx::__numeric_traits<difference_type>::__max
746 : - int(_S_word_bit) + 1;
747 : const size_type __asize = _M_get_Bit_allocator().max_size();
748 : return (__asize <= __isize / int(_S_word_bit)
749 : ? __asize * int(_S_word_bit) : __isize);
750 : }
751 :
752 : size_type
753 : capacity() const _GLIBCXX_NOEXCEPT
754 : { return size_type(const_iterator(this->_M_impl._M_end_of_storage, 0)
755 : - begin()); }
756 :
757 : bool
758 : empty() const _GLIBCXX_NOEXCEPT
759 : { return begin() == end(); }
760 :
761 : reference
762 : operator[](size_type __n)
763 : {
764 : return *iterator(this->_M_impl._M_start._M_p
765 : + __n / int(_S_word_bit), __n % int(_S_word_bit));
766 : }
767 :
768 : const_reference
769 : operator[](size_type __n) const
770 : {
771 0 : return *const_iterator(this->_M_impl._M_start._M_p
772 0 : + __n / int(_S_word_bit), __n % int(_S_word_bit));
773 : }
774 :
775 : protected:
776 : void
777 : _M_range_check(size_type __n) const
778 : {
779 : if (__n >= this->size())
780 : __throw_out_of_range(__N("vector<bool>::_M_range_check"));
781 : }
782 :
783 : public:
784 : reference
785 : at(size_type __n)
786 : { _M_range_check(__n); return (*this)[__n]; }
787 :
788 : const_reference
789 : at(size_type __n) const
790 : { _M_range_check(__n); return (*this)[__n]; }
791 :
792 : void
793 : reserve(size_type __n)
794 : {
795 : if (__n > max_size())
796 : __throw_length_error(__N("vector::reserve"));
797 : if (capacity() < __n)
798 : _M_reallocate(__n);
799 : }
800 :
801 : reference
802 : front()
803 : { return *begin(); }
804 :
805 : const_reference
806 : front() const
807 : { return *begin(); }
808 :
809 : reference
810 : back()
811 : { return *(end() - 1); }
812 :
813 : const_reference
814 : back() const
815 : { return *(end() - 1); }
816 :
817 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
818 : // DR 464. Suggestion for new member functions in standard containers.
819 : // N.B. DR 464 says nothing about vector<bool> but we need something
820 : // here due to the way we are implementing DR 464 in the debug-mode
821 : // vector class.
822 : void
823 : data() _GLIBCXX_NOEXCEPT { }
824 :
825 : void
826 : push_back(bool __x)
827 : {
828 : if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_of_storage)
829 : *this->_M_impl._M_finish++ = __x;
830 : else
831 : _M_insert_aux(end(), __x);
832 : }
833 :
834 : void
835 : swap(vector& __x)
836 : {
837 : std::swap(this->_M_impl._M_start, __x._M_impl._M_start);
838 : std::swap(this->_M_impl._M_finish, __x._M_impl._M_finish);
839 : std::swap(this->_M_impl._M_end_of_storage,
840 : __x._M_impl._M_end_of_storage);
841 :
842 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
843 : // 431. Swapping containers with unequal allocators.
844 : std::__alloc_swap<typename _Base::_Bit_alloc_type>::
845 : _S_do_it(_M_get_Bit_allocator(), __x._M_get_Bit_allocator());
846 : }
847 :
848 : // [23.2.5]/1, third-to-last entry in synopsis listing
849 : static void
850 : swap(reference __x, reference __y) _GLIBCXX_NOEXCEPT
851 : {
852 : bool __tmp = __x;
853 : __x = __y;
854 : __y = __tmp;
855 : }
856 :
857 : iterator
858 : insert(iterator __position, const bool& __x = bool())
859 : {
860 : const difference_type __n = __position - begin();
861 : if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_of_storage
862 : && __position == end())
863 : *this->_M_impl._M_finish++ = __x;
864 : else
865 : _M_insert_aux(__position, __x);
866 : return begin() + __n;
867 : }
868 :
869 : #if __cplusplus >= 201103L
870 : template<typename _InputIterator,
871 : typename = std::_RequireInputIter<_InputIterator>>
872 : void
873 : insert(iterator __position,
874 : _InputIterator __first, _InputIterator __last)
875 : { _M_insert_dispatch(__position, __first, __last, __false_type()); }
876 : #else
877 : template<typename _InputIterator>
878 : void
879 : insert(iterator __position,
880 : _InputIterator __first, _InputIterator __last)
881 : {
882 : typedef typename std::__is_integer<_InputIterator>::__type _Integral;
883 : _M_insert_dispatch(__position, __first, __last, _Integral());
884 : }
885 : #endif
886 :
887 : void
888 : insert(iterator __position, size_type __n, const bool& __x)
889 : { _M_fill_insert(__position, __n, __x); }
890 :
891 : #if __cplusplus >= 201103L
892 : void insert(iterator __p, initializer_list<bool> __l)
893 : { this->insert(__p, __l.begin(), __l.end()); }
894 : #endif
895 :
896 : void
897 : pop_back()
898 : { --this->_M_impl._M_finish; }
899 :
900 : iterator
901 : erase(iterator __position)
902 : {
903 : if (__position + 1 != end())
904 : std::copy(__position + 1, end(), __position);
905 : --this->_M_impl._M_finish;
906 : return __position;
907 : }
908 :
909 : iterator
910 : erase(iterator __first, iterator __last)
911 : {
912 : if (__first != __last)
913 : _M_erase_at_end(std::copy(__last, end(), __first));
914 : return __first;
915 : }
916 :
917 : void
918 : resize(size_type __new_size, bool __x = bool())
919 : {
920 : if (__new_size < size())
921 : _M_erase_at_end(begin() + difference_type(__new_size));
922 : else
923 : insert(end(), __new_size - size(), __x);
924 : }
925 :
926 : #if __cplusplus >= 201103L
927 : void
928 : shrink_to_fit()
929 : { _M_shrink_to_fit(); }
930 : #endif
931 :
932 : void
933 : flip() _GLIBCXX_NOEXCEPT
934 : {
935 : for (_Bit_type * __p = this->_M_impl._M_start._M_p;
936 : __p != this->_M_impl._M_end_of_storage; ++__p)
937 : *__p = ~*__p;
938 : }
939 :
940 : void
941 : clear() _GLIBCXX_NOEXCEPT
942 : { _M_erase_at_end(begin()); }
943 :
944 :
945 : protected:
946 : // Precondition: __first._M_offset == 0 && __result._M_offset == 0.
947 : iterator
948 : _M_copy_aligned(const_iterator __first, const_iterator __last,
949 : iterator __result)
950 : {
951 : _Bit_type* __q = std::copy(__first._M_p, __last._M_p, __result._M_p);
952 : return std::copy(const_iterator(__last._M_p, 0), __last,
953 : iterator(__q, 0));
954 : }
955 :
956 : void
957 : _M_initialize(size_type __n)
958 : {
959 : _Bit_type* __q = this->_M_allocate(__n);
960 : this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
961 : this->_M_impl._M_start = iterator(__q, 0);
962 : this->_M_impl._M_finish = this->_M_impl._M_start + difference_type(__n);
963 : }
964 :
965 : void
966 : _M_reallocate(size_type __n);
967 :
968 : #if __cplusplus >= 201103L
969 : bool
970 : _M_shrink_to_fit();
971 : #endif
972 :
973 : // Check whether it's an integral type. If so, it's not an iterator.
974 :
975 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
976 : // 438. Ambiguity in the "do the right thing" clause
977 : template<typename _Integer>
978 : void
979 : _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type)
980 : {
981 : _M_initialize(static_cast<size_type>(__n));
982 : std::fill(this->_M_impl._M_start._M_p,
983 : this->_M_impl._M_end_of_storage, __x ? ~0 : 0);
984 : }
985 :
986 : template<typename _InputIterator>
987 : void
988 : _M_initialize_dispatch(_InputIterator __first, _InputIterator __last,
989 : __false_type)
990 : { _M_initialize_range(__first, __last,
991 : std::__iterator_category(__first)); }
992 :
993 : template<typename _InputIterator>
994 : void
995 : _M_initialize_range(_InputIterator __first, _InputIterator __last,
996 : std::input_iterator_tag)
997 : {
998 : for (; __first != __last; ++__first)
999 : push_back(*__first);
1000 : }
1001 :
1002 : template<typename _ForwardIterator>
1003 : void
1004 : _M_initialize_range(_ForwardIterator __first, _ForwardIterator __last,
1005 : std::forward_iterator_tag)
1006 : {
1007 : const size_type __n = std::distance(__first, __last);
1008 : _M_initialize(__n);
1009 : std::copy(__first, __last, this->_M_impl._M_start);
1010 : }
1011 :
1012 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
1013 : // 438. Ambiguity in the "do the right thing" clause
1014 : template<typename _Integer>
1015 : void
1016 : _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
1017 : { _M_fill_assign(__n, __val); }
1018 :
1019 : template<class _InputIterator>
1020 : void
1021 : _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
1022 : __false_type)
1023 : { _M_assign_aux(__first, __last, std::__iterator_category(__first)); }
1024 :
1025 : void
1026 : _M_fill_assign(size_t __n, bool __x)
1027 : {
1028 : if (__n > size())
1029 : {
1030 : std::fill(this->_M_impl._M_start._M_p,
1031 : this->_M_impl._M_end_of_storage, __x ? ~0 : 0);
1032 : insert(end(), __n - size(), __x);
1033 : }
1034 : else
1035 : {
1036 : _M_erase_at_end(begin() + __n);
1037 : std::fill(this->_M_impl._M_start._M_p,
1038 : this->_M_impl._M_end_of_storage, __x ? ~0 : 0);
1039 : }
1040 : }
1041 :
1042 : template<typename _InputIterator>
1043 : void
1044 : _M_assign_aux(_InputIterator __first, _InputIterator __last,
1045 : std::input_iterator_tag)
1046 : {
1047 : iterator __cur = begin();
1048 : for (; __first != __last && __cur != end(); ++__cur, ++__first)
1049 : *__cur = *__first;
1050 : if (__first == __last)
1051 : _M_erase_at_end(__cur);
1052 : else
1053 : insert(end(), __first, __last);
1054 : }
1055 :
1056 : template<typename _ForwardIterator>
1057 : void
1058 : _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
1059 : std::forward_iterator_tag)
1060 : {
1061 : const size_type __len = std::distance(__first, __last);
1062 : if (__len < size())
1063 : _M_erase_at_end(std::copy(__first, __last, begin()));
1064 : else
1065 : {
1066 : _ForwardIterator __mid = __first;
1067 : std::advance(__mid, size());
1068 : std::copy(__first, __mid, begin());
1069 : insert(end(), __mid, __last);
1070 : }
1071 : }
1072 :
1073 : // Check whether it's an integral type. If so, it's not an iterator.
1074 :
1075 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
1076 : // 438. Ambiguity in the "do the right thing" clause
1077 : template<typename _Integer>
1078 : void
1079 : _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x,
1080 : __true_type)
1081 : { _M_fill_insert(__pos, __n, __x); }
1082 :
1083 : template<typename _InputIterator>
1084 : void
1085 : _M_insert_dispatch(iterator __pos,
1086 : _InputIterator __first, _InputIterator __last,
1087 : __false_type)
1088 : { _M_insert_range(__pos, __first, __last,
1089 : std::__iterator_category(__first)); }
1090 :
1091 : void
1092 : _M_fill_insert(iterator __position, size_type __n, bool __x);
1093 :
1094 : template<typename _InputIterator>
1095 : void
1096 : _M_insert_range(iterator __pos, _InputIterator __first,
1097 : _InputIterator __last, std::input_iterator_tag)
1098 : {
1099 : for (; __first != __last; ++__first)
1100 : {
1101 : __pos = insert(__pos, *__first);
1102 : ++__pos;
1103 : }
1104 : }
1105 :
1106 : template<typename _ForwardIterator>
1107 : void
1108 : _M_insert_range(iterator __position, _ForwardIterator __first,
1109 : _ForwardIterator __last, std::forward_iterator_tag);
1110 :
1111 : void
1112 : _M_insert_aux(iterator __position, bool __x);
1113 :
1114 : size_type
1115 : _M_check_len(size_type __n, const char* __s) const
1116 : {
1117 : if (max_size() - size() < __n)
1118 : __throw_length_error(__N(__s));
1119 :
1120 : const size_type __len = size() + std::max(size(), __n);
1121 : return (__len < size() || __len > max_size()) ? max_size() : __len;
1122 : }
1123 :
1124 : void
1125 : _M_erase_at_end(iterator __pos)
1126 : { this->_M_impl._M_finish = __pos; }
1127 : };
1128 :
1129 : _GLIBCXX_END_NAMESPACE_CONTAINER
1130 : } // namespace std
1131 :
1132 : #if __cplusplus >= 201103L
1133 :
1134 : #include <bits/functional_hash.h>
1135 :
1136 : namespace std _GLIBCXX_VISIBILITY(default)
1137 : {
1138 : _GLIBCXX_BEGIN_NAMESPACE_VERSION
1139 :
1140 : // DR 1182.
1141 : /// std::hash specialization for vector<bool>.
1142 : template<typename _Alloc>
1143 : struct hash<_GLIBCXX_STD_C::vector<bool, _Alloc>>
1144 : : public __hash_base<size_t, _GLIBCXX_STD_C::vector<bool, _Alloc>>
1145 : {
1146 : size_t
1147 : operator()(const _GLIBCXX_STD_C::vector<bool, _Alloc>&) const noexcept;
1148 : };
1149 :
1150 : _GLIBCXX_END_NAMESPACE_VERSION
1151 : }// namespace std
1152 :
1153 : #endif // C++11
1154 :
1155 : #endif
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