1// Vector implementation (out of line) -*- C++ -*-
2
3// Copyright (C) 2001-2018 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
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/vector.tcc
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 _VECTOR_TCC
57#define _VECTOR_TCC 1
58
59namespace std _GLIBCXX_VISIBILITY(default)
60{
61_GLIBCXX_BEGIN_NAMESPACE_VERSION
62_GLIBCXX_BEGIN_NAMESPACE_CONTAINER
63
64 template<typename _Tp, typename _Alloc>
65 void
66 vector<_Tp, _Alloc>::
67 reserve(size_type __n)
68 {
69 if (__n > this->max_size())
70 __throw_length_error(__N("vector::reserve"));
71 if (this->capacity() < __n)
72 {
73 const size_type __old_size = size();
74 pointer __tmp = _M_allocate_and_copy(__n,
75 _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(this->_M_impl._M_start),
76 _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(this->_M_impl._M_finish));
77 _GLIBCXX_ASAN_ANNOTATE_REINIT;
78 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
79 _M_get_Tp_allocator());
80 _M_deallocate(this->_M_impl._M_start,
81 this->_M_impl._M_end_of_storage
82 - this->_M_impl._M_start);
83 this->_M_impl._M_start = __tmp;
84 this->_M_impl._M_finish = __tmp + __old_size;
85 this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
86 }
87 }
88
89#if __cplusplus >= 201103L
90 template<typename _Tp, typename _Alloc>
91 template<typename... _Args>
92#if __cplusplus > 201402L
93 typename vector<_Tp, _Alloc>::reference
94#else
95 void
96#endif
97 vector<_Tp, _Alloc>::
98 emplace_back(_Args&&... __args)
99 {
100 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
101 {
102 _GLIBCXX_ASAN_ANNOTATE_GROW(1);
103 _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
104 std::forward<_Args>(__args)...);
105 ++this->_M_impl._M_finish;
106 _GLIBCXX_ASAN_ANNOTATE_GREW(1);
107 }
108 else
109 _M_realloc_insert(end(), std::forward<_Args>(__args)...);
110#if __cplusplus > 201402L
111 return back();
112#endif
113 }
114#endif
115
116 template<typename _Tp, typename _Alloc>
117 typename vector<_Tp, _Alloc>::iterator
118 vector<_Tp, _Alloc>::
119#if __cplusplus >= 201103L
120 insert(const_iterator __position, const value_type& __x)
121#else
122 insert(iterator __position, const value_type& __x)
123#endif
124 {
125 const size_type __n = __position - begin();
126 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
127 if (__position == end())
128 {
129 _GLIBCXX_ASAN_ANNOTATE_GROW(1);
130 _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
131 __x);
132 ++this->_M_impl._M_finish;
133 _GLIBCXX_ASAN_ANNOTATE_GREW(1);
134 }
135 else
136 {
137#if __cplusplus >= 201103L
138 const auto __pos = begin() + (__position - cbegin());
139 // __x could be an existing element of this vector, so make a
140 // copy of it before _M_insert_aux moves elements around.
141 _Temporary_value __x_copy(this, __x);
142 _M_insert_aux(__pos, std::move(__x_copy._M_val()));
143#else
144 _M_insert_aux(__position, __x);
145#endif
146 }
147 else
148#if __cplusplus >= 201103L
149 _M_realloc_insert(begin() + (__position - cbegin()), __x);
150#else
151 _M_realloc_insert(__position, __x);
152#endif
153
154 return iterator(this->_M_impl._M_start + __n);
155 }
156
157 template<typename _Tp, typename _Alloc>
158 typename vector<_Tp, _Alloc>::iterator
159 vector<_Tp, _Alloc>::
160 _M_erase(iterator __position)
161 {
162 if (__position + 1 != end())
163 _GLIBCXX_MOVE3(__position + 1, end(), __position);
164 --this->_M_impl._M_finish;
165 _Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish);
166 _GLIBCXX_ASAN_ANNOTATE_SHRINK(1);
167 return __position;
168 }
169
170 template<typename _Tp, typename _Alloc>
171 typename vector<_Tp, _Alloc>::iterator
172 vector<_Tp, _Alloc>::
173 _M_erase(iterator __first, iterator __last)
174 {
175 if (__first != __last)
176 {
177 if (__last != end())
178 _GLIBCXX_MOVE3(__last, end(), __first);
179 _M_erase_at_end(__first.base() + (end() - __last));
180 }
181 return __first;
182 }
183
184 template<typename _Tp, typename _Alloc>
185 vector<_Tp, _Alloc>&
186 vector<_Tp, _Alloc>::
187 operator=(const vector<_Tp, _Alloc>& __x)
188 {
189 if (&__x != this)
190 {
191 _GLIBCXX_ASAN_ANNOTATE_REINIT;
192#if __cplusplus >= 201103L
193 if (_Alloc_traits::_S_propagate_on_copy_assign())
194 {
195 if (!_Alloc_traits::_S_always_equal()
196 && _M_get_Tp_allocator() != __x._M_get_Tp_allocator())
197 {
198 // replacement allocator cannot free existing storage
199 this->clear();
200 _M_deallocate(this->_M_impl._M_start,
201 this->_M_impl._M_end_of_storage
202 - this->_M_impl._M_start);
203 this->_M_impl._M_start = nullptr;
204 this->_M_impl._M_finish = nullptr;
205 this->_M_impl._M_end_of_storage = nullptr;
206 }
207 std::__alloc_on_copy(_M_get_Tp_allocator(),
208 __x._M_get_Tp_allocator());
209 }
210#endif
211 const size_type __xlen = __x.size();
212 if (__xlen > capacity())
213 {
214 pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(),
215 __x.end());
216 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
217 _M_get_Tp_allocator());
218 _M_deallocate(this->_M_impl._M_start,
219 this->_M_impl._M_end_of_storage
220 - this->_M_impl._M_start);
221 this->_M_impl._M_start = __tmp;
222 this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __xlen;
223 }
224 else if (size() >= __xlen)
225 {
226 std::_Destroy(std::copy(__x.begin(), __x.end(), begin()),
227 end(), _M_get_Tp_allocator());
228 }
229 else
230 {
231 std::copy(__x._M_impl._M_start, __x._M_impl._M_start + size(),
232 this->_M_impl._M_start);
233 std::__uninitialized_copy_a(__x._M_impl._M_start + size(),
234 __x._M_impl._M_finish,
235 this->_M_impl._M_finish,
236 _M_get_Tp_allocator());
237 }
238 this->_M_impl._M_finish = this->_M_impl._M_start + __xlen;
239 }
240 return *this;
241 }
242
243 template<typename _Tp, typename _Alloc>
244 void
245 vector<_Tp, _Alloc>::
246 _M_fill_assign(size_t __n, const value_type& __val)
247 {
248 if (__n > capacity())
249 {
250 vector __tmp(__n, __val, _M_get_Tp_allocator());
251 __tmp._M_impl._M_swap_data(this->_M_impl);
252 }
253 else if (__n > size())
254 {
255 std::fill(begin(), end(), __val);
256 const size_type __add = __n - size();
257 _GLIBCXX_ASAN_ANNOTATE_GROW(__add);
258 this->_M_impl._M_finish =
259 std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
260 __add, __val, _M_get_Tp_allocator());
261 _GLIBCXX_ASAN_ANNOTATE_GREW(__add);
262 }
263 else
264 _M_erase_at_end(std::fill_n(this->_M_impl._M_start, __n, __val));
265 }
266
267 template<typename _Tp, typename _Alloc>
268 template<typename _InputIterator>
269 void
270 vector<_Tp, _Alloc>::
271 _M_assign_aux(_InputIterator __first, _InputIterator __last,
272 std::input_iterator_tag)
273 {
274 pointer __cur(this->_M_impl._M_start);
275 for (; __first != __last && __cur != this->_M_impl._M_finish;
276 ++__cur, ++__first)
277 *__cur = *__first;
278 if (__first == __last)
279 _M_erase_at_end(__cur);
280 else
281 _M_range_insert(end(), __first, __last,
282 std::__iterator_category(__first));
283 }
284
285 template<typename _Tp, typename _Alloc>
286 template<typename _ForwardIterator>
287 void
288 vector<_Tp, _Alloc>::
289 _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
290 std::forward_iterator_tag)
291 {
292 const size_type __len = std::distance(__first, __last);
293
294 if (__len > capacity())
295 {
296 pointer __tmp(_M_allocate_and_copy(__len, __first, __last));
297 _GLIBCXX_ASAN_ANNOTATE_REINIT;
298 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
299 _M_get_Tp_allocator());
300 _M_deallocate(this->_M_impl._M_start,
301 this->_M_impl._M_end_of_storage
302 - this->_M_impl._M_start);
303 this->_M_impl._M_start = __tmp;
304 this->_M_impl._M_finish = this->_M_impl._M_start + __len;
305 this->_M_impl._M_end_of_storage = this->_M_impl._M_finish;
306 }
307 else if (size() >= __len)
308 _M_erase_at_end(std::copy(__first, __last, this->_M_impl._M_start));
309 else
310 {
311 _ForwardIterator __mid = __first;
312 std::advance(__mid, size());
313 std::copy(__first, __mid, this->_M_impl._M_start);
314 const size_type __attribute__((__unused__)) __n = __len - size();
315 _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
316 this->_M_impl._M_finish =
317 std::__uninitialized_copy_a(__mid, __last,
318 this->_M_impl._M_finish,
319 _M_get_Tp_allocator());
320 _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
321 }
322 }
323
324#if __cplusplus >= 201103L
325 template<typename _Tp, typename _Alloc>
326 auto
327 vector<_Tp, _Alloc>::
328 _M_insert_rval(const_iterator __position, value_type&& __v) -> iterator
329 {
330 const auto __n = __position - cbegin();
331 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
332 if (__position == cend())
333 {
334 _GLIBCXX_ASAN_ANNOTATE_GROW(1);
335 _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
336 std::move(__v));
337 ++this->_M_impl._M_finish;
338 _GLIBCXX_ASAN_ANNOTATE_GREW(1);
339 }
340 else
341 _M_insert_aux(begin() + __n, std::move(__v));
342 else
343 _M_realloc_insert(begin() + __n, std::move(__v));
344
345 return iterator(this->_M_impl._M_start + __n);
346 }
347
348 template<typename _Tp, typename _Alloc>
349 template<typename... _Args>
350 auto
351 vector<_Tp, _Alloc>::
352 _M_emplace_aux(const_iterator __position, _Args&&... __args)
353 -> iterator
354 {
355 const auto __n = __position - cbegin();
356 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
357 if (__position == cend())
358 {
359 _GLIBCXX_ASAN_ANNOTATE_GROW(1);
360 _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
361 std::forward<_Args>(__args)...);
362 ++this->_M_impl._M_finish;
363 _GLIBCXX_ASAN_ANNOTATE_GREW(1);
364 }
365 else
366 {
367 // We need to construct a temporary because something in __args...
368 // could alias one of the elements of the container and so we
369 // need to use it before _M_insert_aux moves elements around.
370 _Temporary_value __tmp(this, std::forward<_Args>(__args)...);
371 _M_insert_aux(begin() + __n, std::move(__tmp._M_val()));
372 }
373 else
374 _M_realloc_insert(begin() + __n, std::forward<_Args>(__args)...);
375
376 return iterator(this->_M_impl._M_start + __n);
377 }
378
379 template<typename _Tp, typename _Alloc>
380 template<typename _Arg>
381 void
382 vector<_Tp, _Alloc>::
383 _M_insert_aux(iterator __position, _Arg&& __arg)
384#else
385 template<typename _Tp, typename _Alloc>
386 void
387 vector<_Tp, _Alloc>::
388 _M_insert_aux(iterator __position, const _Tp& __x)
389#endif
390 {
391 _GLIBCXX_ASAN_ANNOTATE_GROW(1);
392 _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
393 _GLIBCXX_MOVE(*(this->_M_impl._M_finish - 1)));
394 ++this->_M_impl._M_finish;
395 _GLIBCXX_ASAN_ANNOTATE_GREW(1);
396#if __cplusplus < 201103L
397 _Tp __x_copy = __x;
398#endif
399 _GLIBCXX_MOVE_BACKWARD3(__position.base(),
400 this->_M_impl._M_finish - 2,
401 this->_M_impl._M_finish - 1);
402#if __cplusplus < 201103L
403 *__position = __x_copy;
404#else
405 *__position = std::forward<_Arg>(__arg);
406#endif
407 }
408
409#if __cplusplus >= 201103L
410 template<typename _Tp, typename _Alloc>
411 template<typename... _Args>
412 void
413 vector<_Tp, _Alloc>::
414 _M_realloc_insert(iterator __position, _Args&&... __args)
415#else
416 template<typename _Tp, typename _Alloc>
417 void
418 vector<_Tp, _Alloc>::
419 _M_realloc_insert(iterator __position, const _Tp& __x)
420#endif
421 {
422 const size_type __len =
423 _M_check_len(size_type(1), "vector::_M_realloc_insert");
424 pointer __old_start = this->_M_impl._M_start;
425 pointer __old_finish = this->_M_impl._M_finish;
426 const size_type __elems_before = __position - begin();
427 pointer __new_start(this->_M_allocate(__len));
428 pointer __new_finish(__new_start);
429 __try
430 {
431 // The order of the three operations is dictated by the C++11
432 // case, where the moves could alter a new element belonging
433 // to the existing vector. This is an issue only for callers
434 // taking the element by lvalue ref (see last bullet of C++11
435 // [res.on.arguments]).
436 _Alloc_traits::construct(this->_M_impl,
437 __new_start + __elems_before,
438#if __cplusplus >= 201103L
439 std::forward<_Args>(__args)...);
440#else
441 __x);
442#endif
443 __new_finish = pointer();
444
445 __new_finish
446 = std::__uninitialized_move_if_noexcept_a
447 (__old_start, __position.base(),
448 __new_start, _M_get_Tp_allocator());
449
450 ++__new_finish;
451
452 __new_finish
453 = std::__uninitialized_move_if_noexcept_a
454 (__position.base(), __old_finish,
455 __new_finish, _M_get_Tp_allocator());
456 }
457 __catch(...)
458 {
459 if (!__new_finish)
460 _Alloc_traits::destroy(this->_M_impl,
461 __new_start + __elems_before);
462 else
463 std::_Destroy(__new_start, __new_finish, _M_get_Tp_allocator());
464 _M_deallocate(__new_start, __len);
465 __throw_exception_again;
466 }
467 _GLIBCXX_ASAN_ANNOTATE_REINIT;
468 std::_Destroy(__old_start, __old_finish, _M_get_Tp_allocator());
469 _M_deallocate(__old_start,
470 this->_M_impl._M_end_of_storage - __old_start);
471 this->_M_impl._M_start = __new_start;
472 this->_M_impl._M_finish = __new_finish;
473 this->_M_impl._M_end_of_storage = __new_start + __len;
474 }
475
476 template<typename _Tp, typename _Alloc>
477 void
478 vector<_Tp, _Alloc>::
479 _M_fill_insert(iterator __position, size_type __n, const value_type& __x)
480 {
481 if (__n != 0)
482 {
483 if (size_type(this->_M_impl._M_end_of_storage
484 - this->_M_impl._M_finish) >= __n)
485 {
486#if __cplusplus < 201103L
487 value_type __x_copy = __x;
488#else
489 _Temporary_value __tmp(this, __x);
490 value_type& __x_copy = __tmp._M_val();
491#endif
492 const size_type __elems_after = end() - __position;
493 pointer __old_finish(this->_M_impl._M_finish);
494 if (__elems_after > __n)
495 {
496 _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
497 std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
498 this->_M_impl._M_finish,
499 this->_M_impl._M_finish,
500 _M_get_Tp_allocator());
501 this->_M_impl._M_finish += __n;
502 _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
503 _GLIBCXX_MOVE_BACKWARD3(__position.base(),
504 __old_finish - __n, __old_finish);
505 std::fill(__position.base(), __position.base() + __n,
506 __x_copy);
507 }
508 else
509 {
510 _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
511 this->_M_impl._M_finish =
512 std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
513 __n - __elems_after,
514 __x_copy,
515 _M_get_Tp_allocator());
516 _GLIBCXX_ASAN_ANNOTATE_GREW(__n - __elems_after);
517 std::__uninitialized_move_a(__position.base(), __old_finish,
518 this->_M_impl._M_finish,
519 _M_get_Tp_allocator());
520 this->_M_impl._M_finish += __elems_after;
521 _GLIBCXX_ASAN_ANNOTATE_GREW(__elems_after);
522 std::fill(__position.base(), __old_finish, __x_copy);
523 }
524 }
525 else
526 {
527 const size_type __len =
528 _M_check_len(__n, "vector::_M_fill_insert");
529 const size_type __elems_before = __position - begin();
530 pointer __new_start(this->_M_allocate(__len));
531 pointer __new_finish(__new_start);
532 __try
533 {
534 // See _M_realloc_insert above.
535 std::__uninitialized_fill_n_a(__new_start + __elems_before,
536 __n, __x,
537 _M_get_Tp_allocator());
538 __new_finish = pointer();
539
540 __new_finish
541 = std::__uninitialized_move_if_noexcept_a
542 (this->_M_impl._M_start, __position.base(),
543 __new_start, _M_get_Tp_allocator());
544
545 __new_finish += __n;
546
547 __new_finish
548 = std::__uninitialized_move_if_noexcept_a
549 (__position.base(), this->_M_impl._M_finish,
550 __new_finish, _M_get_Tp_allocator());
551 }
552 __catch(...)
553 {
554 if (!__new_finish)
555 std::_Destroy(__new_start + __elems_before,
556 __new_start + __elems_before + __n,
557 _M_get_Tp_allocator());
558 else
559 std::_Destroy(__new_start, __new_finish,
560 _M_get_Tp_allocator());
561 _M_deallocate(__new_start, __len);
562 __throw_exception_again;
563 }
564 _GLIBCXX_ASAN_ANNOTATE_REINIT;
565 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
566 _M_get_Tp_allocator());
567 _M_deallocate(this->_M_impl._M_start,
568 this->_M_impl._M_end_of_storage
569 - this->_M_impl._M_start);
570 this->_M_impl._M_start = __new_start;
571 this->_M_impl._M_finish = __new_finish;
572 this->_M_impl._M_end_of_storage = __new_start + __len;
573 }
574 }
575 }
576
577#if __cplusplus >= 201103L
578 template<typename _Tp, typename _Alloc>
579 void
580 vector<_Tp, _Alloc>::
581 _M_default_append(size_type __n)
582 {
583 if (__n != 0)
584 {
585 size_type __size = size();
586 size_type __navail = size_type(this->_M_impl._M_end_of_storage
587 - this->_M_impl._M_finish);
588
589 if (__size > max_size() || __navail > max_size() - __size)
590 __builtin_unreachable();
591
592 if (__navail >= __n)
593 {
594 _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
595 this->_M_impl._M_finish =
596 std::__uninitialized_default_n_a(this->_M_impl._M_finish,
597 __n, _M_get_Tp_allocator());
598 _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
599 }
600 else
601 {
602 const size_type __len =
603 _M_check_len(__n, "vector::_M_default_append");
604 const size_type __old_size = __size;
605 pointer __new_start(this->_M_allocate(__len));
606 pointer __new_finish(__new_start);
607 __try
608 {
609 __new_finish
610 = std::__uninitialized_move_if_noexcept_a
611 (this->_M_impl._M_start, this->_M_impl._M_finish,
612 __new_start, _M_get_Tp_allocator());
613 __new_finish =
614 std::__uninitialized_default_n_a(__new_finish, __n,
615 _M_get_Tp_allocator());
616 }
617 __catch(...)
618 {
619 std::_Destroy(__new_start, __new_finish,
620 _M_get_Tp_allocator());
621 _M_deallocate(__new_start, __len);
622 __throw_exception_again;
623 }
624 _GLIBCXX_ASAN_ANNOTATE_REINIT;
625 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
626 _M_get_Tp_allocator());
627 _M_deallocate(this->_M_impl._M_start,
628 this->_M_impl._M_end_of_storage
629 - this->_M_impl._M_start);
630 this->_M_impl._M_start = __new_start;
631 this->_M_impl._M_finish = __new_finish;
632 this->_M_impl._M_end_of_storage = __new_start + __len;
633 }
634 }
635 }
636
637 template<typename _Tp, typename _Alloc>
638 bool
639 vector<_Tp, _Alloc>::
640 _M_shrink_to_fit()
641 {
642 if (capacity() == size())
643 return false;
644 _GLIBCXX_ASAN_ANNOTATE_REINIT;
645 return std::__shrink_to_fit_aux<vector>::_S_do_it(*this);
646 }
647#endif
648
649 template<typename _Tp, typename _Alloc>
650 template<typename _InputIterator>
651 void
652 vector<_Tp, _Alloc>::
653 _M_range_insert(iterator __pos, _InputIterator __first,
654 _InputIterator __last, std::input_iterator_tag)
655 {
656 if (__pos == end())
657 {
658 for (; __first != __last; ++__first)
659 insert(end(), *__first);
660 }
661 else if (__first != __last)
662 {
663 vector __tmp(__first, __last, _M_get_Tp_allocator());
664 insert(__pos,
665 _GLIBCXX_MAKE_MOVE_ITERATOR(__tmp.begin()),
666 _GLIBCXX_MAKE_MOVE_ITERATOR(__tmp.end()));
667 }
668 }
669
670 template<typename _Tp, typename _Alloc>
671 template<typename _ForwardIterator>
672 void
673 vector<_Tp, _Alloc>::
674 _M_range_insert(iterator __position, _ForwardIterator __first,
675 _ForwardIterator __last, std::forward_iterator_tag)
676 {
677 if (__first != __last)
678 {
679 const size_type __n = std::distance(__first, __last);
680 if (size_type(this->_M_impl._M_end_of_storage
681 - this->_M_impl._M_finish) >= __n)
682 {
683 const size_type __elems_after = end() - __position;
684 pointer __old_finish(this->_M_impl._M_finish);
685 if (__elems_after > __n)
686 {
687 _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
688 std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
689 this->_M_impl._M_finish,
690 this->_M_impl._M_finish,
691 _M_get_Tp_allocator());
692 this->_M_impl._M_finish += __n;
693 _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
694 _GLIBCXX_MOVE_BACKWARD3(__position.base(),
695 __old_finish - __n, __old_finish);
696 std::copy(__first, __last, __position);
697 }
698 else
699 {
700 _ForwardIterator __mid = __first;
701 std::advance(__mid, __elems_after);
702 _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
703 std::__uninitialized_copy_a(__mid, __last,
704 this->_M_impl._M_finish,
705 _M_get_Tp_allocator());
706 this->_M_impl._M_finish += __n - __elems_after;
707 _GLIBCXX_ASAN_ANNOTATE_GREW(__n - __elems_after);
708 std::__uninitialized_move_a(__position.base(),
709 __old_finish,
710 this->_M_impl._M_finish,
711 _M_get_Tp_allocator());
712 this->_M_impl._M_finish += __elems_after;
713 _GLIBCXX_ASAN_ANNOTATE_GREW(__elems_after);
714 std::copy(__first, __mid, __position);
715 }
716 }
717 else
718 {
719 const size_type __len =
720 _M_check_len(__n, "vector::_M_range_insert");
721 pointer __new_start(this->_M_allocate(__len));
722 pointer __new_finish(__new_start);
723 __try
724 {
725 __new_finish
726 = std::__uninitialized_move_if_noexcept_a
727 (this->_M_impl._M_start, __position.base(),
728 __new_start, _M_get_Tp_allocator());
729 __new_finish
730 = std::__uninitialized_copy_a(__first, __last,
731 __new_finish,
732 _M_get_Tp_allocator());
733 __new_finish
734 = std::__uninitialized_move_if_noexcept_a
735 (__position.base(), this->_M_impl._M_finish,
736 __new_finish, _M_get_Tp_allocator());
737 }
738 __catch(...)
739 {
740 std::_Destroy(__new_start, __new_finish,
741 _M_get_Tp_allocator());
742 _M_deallocate(__new_start, __len);
743 __throw_exception_again;
744 }
745 _GLIBCXX_ASAN_ANNOTATE_REINIT;
746 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
747 _M_get_Tp_allocator());
748 _M_deallocate(this->_M_impl._M_start,
749 this->_M_impl._M_end_of_storage
750 - this->_M_impl._M_start);
751 this->_M_impl._M_start = __new_start;
752 this->_M_impl._M_finish = __new_finish;
753 this->_M_impl._M_end_of_storage = __new_start + __len;
754 }
755 }
756 }
757
758
759 // vector<bool>
760 template<typename _Alloc>
761 void
762 vector<bool, _Alloc>::
763 _M_reallocate(size_type __n)
764 {
765 _Bit_pointer __q = this->_M_allocate(__n);
766 iterator __start(std::__addressof(*__q), 0);
767 iterator __finish(_M_copy_aligned(begin(), end(), __start));
768 this->_M_deallocate();
769 this->_M_impl._M_start = __start;
770 this->_M_impl._M_finish = __finish;
771 this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
772 }
773
774 template<typename _Alloc>
775 void
776 vector<bool, _Alloc>::
777 _M_fill_insert(iterator __position, size_type __n, bool __x)
778 {
779 if (__n == 0)
780 return;
781 if (capacity() - size() >= __n)
782 {
783 std::copy_backward(__position, end(),
784 this->_M_impl._M_finish + difference_type(__n));
785 std::fill(__position, __position + difference_type(__n), __x);
786 this->_M_impl._M_finish += difference_type(__n);
787 }
788 else
789 {
790 const size_type __len =
791 _M_check_len(__n, "vector<bool>::_M_fill_insert");
792 _Bit_pointer __q = this->_M_allocate(__len);
793 iterator __start(std::__addressof(*__q), 0);
794 iterator __i = _M_copy_aligned(begin(), __position, __start);
795 std::fill(__i, __i + difference_type(__n), __x);
796 iterator __finish = std::copy(__position, end(),
797 __i + difference_type(__n));
798 this->_M_deallocate();
799 this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
800 this->_M_impl._M_start = __start;
801 this->_M_impl._M_finish = __finish;
802 }
803 }
804
805 template<typename _Alloc>
806 template<typename _ForwardIterator>
807 void
808 vector<bool, _Alloc>::
809 _M_insert_range(iterator __position, _ForwardIterator __first,
810 _ForwardIterator __last, std::forward_iterator_tag)
811 {
812 if (__first != __last)
813 {
814 size_type __n = std::distance(__first, __last);
815 if (capacity() - size() >= __n)
816 {
817 std::copy_backward(__position, end(),
818 this->_M_impl._M_finish
819 + difference_type(__n));
820 std::copy(__first, __last, __position);
821 this->_M_impl._M_finish += difference_type(__n);
822 }
823 else
824 {
825 const size_type __len =
826 _M_check_len(__n, "vector<bool>::_M_insert_range");
827 _Bit_pointer __q = this->_M_allocate(__len);
828 iterator __start(std::__addressof(*__q), 0);
829 iterator __i = _M_copy_aligned(begin(), __position, __start);
830 __i = std::copy(__first, __last, __i);
831 iterator __finish = std::copy(__position, end(), __i);
832 this->_M_deallocate();
833 this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
834 this->_M_impl._M_start = __start;
835 this->_M_impl._M_finish = __finish;
836 }
837 }
838 }
839
840 template<typename _Alloc>
841 void
842 vector<bool, _Alloc>::
843 _M_insert_aux(iterator __position, bool __x)
844 {
845 if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr())
846 {
847 std::copy_backward(__position, this->_M_impl._M_finish,
848 this->_M_impl._M_finish + 1);
849 *__position = __x;
850 ++this->_M_impl._M_finish;
851 }
852 else
853 {
854 const size_type __len =
855 _M_check_len(size_type(1), "vector<bool>::_M_insert_aux");
856 _Bit_pointer __q = this->_M_allocate(__len);
857 iterator __start(std::__addressof(*__q), 0);
858 iterator __i = _M_copy_aligned(begin(), __position, __start);
859 *__i++ = __x;
860 iterator __finish = std::copy(__position, end(), __i);
861 this->_M_deallocate();
862 this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
863 this->_M_impl._M_start = __start;
864 this->_M_impl._M_finish = __finish;
865 }
866 }
867
868 template<typename _Alloc>
869 typename vector<bool, _Alloc>::iterator
870 vector<bool, _Alloc>::
871 _M_erase(iterator __position)
872 {
873 if (__position + 1 != end())
874 std::copy(__position + 1, end(), __position);
875 --this->_M_impl._M_finish;
876 return __position;
877 }
878
879 template<typename _Alloc>
880 typename vector<bool, _Alloc>::iterator
881 vector<bool, _Alloc>::
882 _M_erase(iterator __first, iterator __last)
883 {
884 if (__first != __last)
885 _M_erase_at_end(std::copy(__last, end(), __first));
886 return __first;
887 }
888
889#if __cplusplus >= 201103L
890 template<typename _Alloc>
891 bool
892 vector<bool, _Alloc>::
893 _M_shrink_to_fit()
894 {
895 if (capacity() - size() < int(_S_word_bit))
896 return false;
897 __try
898 {
899 _M_reallocate(size());
900 return true;
901 }
902 __catch(...)
903 { return false; }
904 }
905#endif
906
907_GLIBCXX_END_NAMESPACE_CONTAINER
908_GLIBCXX_END_NAMESPACE_VERSION
909} // namespace std
910
911#if __cplusplus >= 201103L
912
913namespace std _GLIBCXX_VISIBILITY(default)
914{
915_GLIBCXX_BEGIN_NAMESPACE_VERSION
916
917 template<typename _Alloc>
918 size_t
919 hash<_GLIBCXX_STD_C::vector<bool, _Alloc>>::
920 operator()(const _GLIBCXX_STD_C::vector<bool, _Alloc>& __b) const noexcept
921 {
922 size_t __hash = 0;
923 using _GLIBCXX_STD_C::_S_word_bit;
924 using _GLIBCXX_STD_C::_Bit_type;
925
926 const size_t __words = __b.size() / _S_word_bit;
927 if (__words)
928 {
929 const size_t __clength = __words * sizeof(_Bit_type);
930 __hash = std::_Hash_impl::hash(__b._M_impl._M_start._M_p, __clength);
931 }
932
933 const size_t __extrabits = __b.size() % _S_word_bit;
934 if (__extrabits)
935 {
936 _Bit_type __hiword = *__b._M_impl._M_finish._M_p;
937 __hiword &= ~((~static_cast<_Bit_type>(0)) << __extrabits);
938
939 const size_t __clength
940 = (__extrabits + __CHAR_BIT__ - 1) / __CHAR_BIT__;
941 if (__words)
942 __hash = std::_Hash_impl::hash(&__hiword, __clength, __hash);
943 else
944 __hash = std::_Hash_impl::hash(&__hiword, __clength);
945 }
946
947 return __hash;
948 }
949
950_GLIBCXX_END_NAMESPACE_VERSION
951} // namespace std
952
953#endif // C++11
954
955#undef _GLIBCXX_ASAN_ANNOTATE_REINIT
956#undef _GLIBCXX_ASAN_ANNOTATE_GROW
957#undef _GLIBCXX_ASAN_ANNOTATE_GREW
958#undef _GLIBCXX_ASAN_ANNOTATE_SHRINK
959
960#endif /* _VECTOR_TCC */
961