1 : // Vector implementation (out of line) -*- C++ -*-
2 :
3 : // Copyright (C) 2001, 2002, 2003, 2004, 2005 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 2, 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 : // You should have received a copy of the GNU General Public License along
17 : // with this library; see the file COPYING. If not, write to the Free
18 : // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 : // USA.
20 :
21 : // As a special exception, you may use this file as part of a free software
22 : // library without restriction. Specifically, if other files instantiate
23 : // templates or use macros or inline functions from this file, or you compile
24 : // this file and link it with other files to produce an executable, this
25 : // file does not by itself cause the resulting executable to be covered by
26 : // the GNU General Public License. This exception does not however
27 : // invalidate any other reasons why the executable file might be covered by
28 : // the GNU General Public License.
29 :
30 : /*
31 : *
32 : * Copyright (c) 1994
33 : * Hewlett-Packard Company
34 : *
35 : * Permission to use, copy, modify, distribute and sell this software
36 : * and its documentation for any purpose is hereby granted without fee,
37 : * provided that the above copyright notice appear in all copies and
38 : * that both that copyright notice and this permission notice appear
39 : * in supporting documentation. Hewlett-Packard Company makes no
40 : * representations about the suitability of this software for any
41 : * purpose. It is provided "as is" without express or implied warranty.
42 : *
43 : *
44 : * Copyright (c) 1996
45 : * Silicon Graphics Computer Systems, Inc.
46 : *
47 : * Permission to use, copy, modify, distribute and sell this software
48 : * and its documentation for any purpose is hereby granted without fee,
49 : * provided that the above copyright notice appear in all copies and
50 : * that both that copyright notice and this permission notice appear
51 : * in supporting documentation. Silicon Graphics makes no
52 : * representations about the suitability of this software for any
53 : * purpose. It is provided "as is" without express or implied warranty.
54 : */
55 :
56 : /** @file vector.tcc
57 : * This is an internal header file, included by other library headers.
58 : * You should not attempt to use it directly.
59 : */
60 :
61 : #ifndef _VECTOR_TCC
62 : #define _VECTOR_TCC 1
63 :
64 : _GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD)
65 :
66 : template<typename _Tp, typename _Alloc>
67 : void
68 : vector<_Tp, _Alloc>::
69 : reserve(size_type __n)
70 : {
71 : if (__n > this->max_size())
72 : __throw_length_error(__N("vector::reserve"));
73 : if (this->capacity() < __n)
74 : {
75 : const size_type __old_size = size();
76 : pointer __tmp = _M_allocate_and_copy(__n, this->_M_impl._M_start,
77 : this->_M_impl._M_finish);
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 : template<typename _Tp, typename _Alloc>
90 : typename vector<_Tp, _Alloc>::iterator
91 : vector<_Tp, _Alloc>::
92 : insert(iterator __position, const value_type& __x)
93 : {
94 : const size_type __n = __position - begin();
95 : if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage
96 : && __position == end())
97 : {
98 : this->_M_impl.construct(this->_M_impl._M_finish, __x);
99 : ++this->_M_impl._M_finish;
100 : }
101 : else
102 : _M_insert_aux(__position, __x);
103 : return iterator(this->_M_impl._M_start + __n);
104 : }
105 :
106 : template<typename _Tp, typename _Alloc>
107 : typename vector<_Tp, _Alloc>::iterator
108 : vector<_Tp, _Alloc>::
109 : erase(iterator __position)
110 : {
111 : if (__position + 1 != end())
112 : std::copy(__position + 1, end(), __position);
113 : --this->_M_impl._M_finish;
114 : this->_M_impl.destroy(this->_M_impl._M_finish);
115 : return __position;
116 : }
117 :
118 : template<typename _Tp, typename _Alloc>
119 : typename vector<_Tp, _Alloc>::iterator
120 : vector<_Tp, _Alloc>::
121 : erase(iterator __first, iterator __last)
122 : {
123 : if (__last != end())
124 : std::copy(__last, end(), __first);
125 : _M_erase_at_end(__first.base() + (end() - __last));
126 : return __first;
127 : }
128 :
129 : template<typename _Tp, typename _Alloc>
130 : vector<_Tp, _Alloc>&
131 : vector<_Tp, _Alloc>::
132 : operator=(const vector<_Tp, _Alloc>& __x)
133 : {
134 0 : if (&__x != this)
135 : {
136 0 : const size_type __xlen = __x.size();
137 0 : if (__xlen > capacity())
138 : {
139 0 : pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(),
140 0 : __x.end());
141 0 : std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
142 0 : _M_get_Tp_allocator());
143 0 : _M_deallocate(this->_M_impl._M_start,
144 : this->_M_impl._M_end_of_storage
145 : - this->_M_impl._M_start);
146 0 : this->_M_impl._M_start = __tmp;
147 0 : this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __xlen;
148 0 : }
149 0 : else if (size() >= __xlen)
150 : {
151 0 : std::_Destroy(std::copy(__x.begin(), __x.end(), begin()),
152 0 : end(), _M_get_Tp_allocator());
153 0 : }
154 : else
155 : {
156 0 : std::copy(__x._M_impl._M_start, __x._M_impl._M_start + size(),
157 : this->_M_impl._M_start);
158 0 : std::__uninitialized_copy_a(__x._M_impl._M_start + size(),
159 : __x._M_impl._M_finish,
160 : this->_M_impl._M_finish,
161 0 : _M_get_Tp_allocator());
162 : }
163 0 : this->_M_impl._M_finish = this->_M_impl._M_start + __xlen;
164 0 : }
165 0 : return *this;
166 0 : }
167 :
168 : template<typename _Tp, typename _Alloc>
169 : void
170 : vector<_Tp, _Alloc>::
171 : _M_fill_assign(size_t __n, const value_type& __val)
172 : {
173 : if (__n > capacity())
174 : {
175 : vector __tmp(__n, __val, _M_get_Tp_allocator());
176 : __tmp.swap(*this);
177 : }
178 : else if (__n > size())
179 : {
180 : std::fill(begin(), end(), __val);
181 : std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
182 : __n - size(), __val,
183 : _M_get_Tp_allocator());
184 : this->_M_impl._M_finish += __n - size();
185 : }
186 : else
187 : _M_erase_at_end(std::fill_n(this->_M_impl._M_start, __n, __val));
188 : }
189 :
190 : template<typename _Tp, typename _Alloc>
191 : template<typename _InputIterator>
192 : void
193 : vector<_Tp, _Alloc>::
194 : _M_assign_aux(_InputIterator __first, _InputIterator __last,
195 : std::input_iterator_tag)
196 : {
197 : pointer __cur(this->_M_impl._M_start);
198 : for (; __first != __last && __cur != this->_M_impl._M_finish;
199 : ++__cur, ++__first)
200 : *__cur = *__first;
201 : if (__first == __last)
202 : _M_erase_at_end(__cur);
203 : else
204 : insert(end(), __first, __last);
205 : }
206 :
207 : template<typename _Tp, typename _Alloc>
208 : template<typename _ForwardIterator>
209 : void
210 : vector<_Tp, _Alloc>::
211 : _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
212 : std::forward_iterator_tag)
213 : {
214 : const size_type __len = std::distance(__first, __last);
215 :
216 : if (__len > capacity())
217 : {
218 : pointer __tmp(_M_allocate_and_copy(__len, __first, __last));
219 : std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
220 : _M_get_Tp_allocator());
221 : _M_deallocate(this->_M_impl._M_start,
222 : this->_M_impl._M_end_of_storage
223 : - this->_M_impl._M_start);
224 : this->_M_impl._M_start = __tmp;
225 : this->_M_impl._M_finish = this->_M_impl._M_start + __len;
226 : this->_M_impl._M_end_of_storage = this->_M_impl._M_finish;
227 : }
228 : else if (size() >= __len)
229 : _M_erase_at_end(std::copy(__first, __last, this->_M_impl._M_start));
230 : else
231 : {
232 : _ForwardIterator __mid = __first;
233 : std::advance(__mid, size());
234 : std::copy(__first, __mid, this->_M_impl._M_start);
235 : this->_M_impl._M_finish =
236 : std::__uninitialized_copy_a(__mid, __last,
237 : this->_M_impl._M_finish,
238 : _M_get_Tp_allocator());
239 : }
240 : }
241 :
242 : template<typename _Tp, typename _Alloc>
243 : void
244 : vector<_Tp, _Alloc>::
245 : _M_insert_aux(iterator __position, const _Tp& __x)
246 : {
247 8542 : if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
248 : {
249 0 : this->_M_impl.construct(this->_M_impl._M_finish,
250 : *(this->_M_impl._M_finish - 1));
251 0 : ++this->_M_impl._M_finish;
252 0 : _Tp __x_copy = __x;
253 0 : std::copy_backward(__position.base(),
254 : this->_M_impl._M_finish - 2,
255 : this->_M_impl._M_finish - 1);
256 0 : *__position = __x_copy;
257 0 : }
258 : else
259 : {
260 8542 : const size_type __old_size = size();
261 8542 : if (__old_size == this->max_size())
262 0 : __throw_length_error(__N("vector::_M_insert_aux"));
263 :
264 : // When sizeof(value_type) == 1 and __old_size > size_type(-1)/2
265 : // __len overflows: if we don't notice and _M_allocate doesn't
266 : // throw we crash badly later.
267 25626 : size_type __len = __old_size != 0 ? 2 * __old_size : 1;
268 8542 : if (__len < __old_size)
269 0 : __len = this->max_size();
270 :
271 8542 : pointer __new_start(this->_M_allocate(__len));
272 8542 : pointer __new_finish(__new_start);
273 : try
274 : {
275 : __new_finish =
276 34168 : std::__uninitialized_copy_a(this->_M_impl._M_start,
277 17084 : __position.base(), __new_start,
278 8542 : _M_get_Tp_allocator());
279 8542 : this->_M_impl.construct(__new_finish, __x);
280 8542 : ++__new_finish;
281 : __new_finish =
282 34168 : std::__uninitialized_copy_a(__position.base(),
283 0 : this->_M_impl._M_finish,
284 : __new_finish,
285 8542 : _M_get_Tp_allocator());
286 8542 : }
287 : catch(...)
288 : {
289 0 : std::_Destroy(__new_start, __new_finish, _M_get_Tp_allocator());
290 0 : _M_deallocate(__new_start, __len);
291 0 : __throw_exception_again;
292 : }
293 25626 : std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
294 8542 : _M_get_Tp_allocator());
295 8542 : _M_deallocate(this->_M_impl._M_start,
296 : this->_M_impl._M_end_of_storage
297 : - this->_M_impl._M_start);
298 8542 : this->_M_impl._M_start = __new_start;
299 8542 : this->_M_impl._M_finish = __new_finish;
300 8542 : this->_M_impl._M_end_of_storage = __new_start + __len;
301 : }
302 8542 : }
303 :
304 : template<typename _Tp, typename _Alloc>
305 : void
306 : vector<_Tp, _Alloc>::
307 : _M_fill_insert(iterator __position, size_type __n, const value_type& __x)
308 : {
309 14275 : if (__n != 0)
310 : {
311 14275 : if (size_type(this->_M_impl._M_end_of_storage
312 : - this->_M_impl._M_finish) >= __n)
313 : {
314 8119 : value_type __x_copy = __x;
315 8235 : const size_type __elems_after = end() - __position;
316 8119 : pointer __old_finish(this->_M_impl._M_finish);
317 8119 : if (__elems_after > __n)
318 : {
319 0 : std::__uninitialized_copy_a(this->_M_impl._M_finish - __n,
320 : this->_M_impl._M_finish,
321 : this->_M_impl._M_finish,
322 0 : _M_get_Tp_allocator());
323 0 : this->_M_impl._M_finish += __n;
324 0 : std::copy_backward(__position.base(), __old_finish - __n,
325 : __old_finish);
326 0 : std::fill(__position.base(), __position.base() + __n,
327 : __x_copy);
328 0 : }
329 : else
330 : {
331 24357 : std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
332 : __n - __elems_after,
333 : __x_copy,
334 8119 : _M_get_Tp_allocator());
335 8119 : this->_M_impl._M_finish += __n - __elems_after;
336 24415 : std::__uninitialized_copy_a(__position.base(), __old_finish,
337 : this->_M_impl._M_finish,
338 8119 : _M_get_Tp_allocator());
339 8119 : this->_M_impl._M_finish += __elems_after;
340 8177 : std::fill(__position.base(), __old_finish, __x_copy);
341 : }
342 8119 : }
343 : else
344 : {
345 6156 : const size_type __old_size = size();
346 6156 : if (this->max_size() - __old_size < __n)
347 0 : __throw_length_error(__N("vector::_M_fill_insert"));
348 :
349 : // See _M_insert_aux above.
350 6156 : size_type __len = __old_size + std::max(__old_size, __n);
351 6156 : if (__len < __old_size)
352 0 : __len = this->max_size();
353 :
354 6156 : pointer __new_start(this->_M_allocate(__len));
355 6156 : pointer __new_finish(__new_start);
356 : try
357 : {
358 : __new_finish =
359 24624 : std::__uninitialized_copy_a(this->_M_impl._M_start,
360 12312 : __position.base(),
361 : __new_start,
362 6156 : _M_get_Tp_allocator());
363 18468 : std::__uninitialized_fill_n_a(__new_finish, __n, __x,
364 6156 : _M_get_Tp_allocator());
365 6156 : __new_finish += __n;
366 : __new_finish =
367 24624 : std::__uninitialized_copy_a(__position.base(),
368 : this->_M_impl._M_finish,
369 : __new_finish,
370 6156 : _M_get_Tp_allocator());
371 6156 : }
372 : catch(...)
373 : {
374 0 : std::_Destroy(__new_start, __new_finish,
375 0 : _M_get_Tp_allocator());
376 0 : _M_deallocate(__new_start, __len);
377 0 : __throw_exception_again;
378 : }
379 18468 : std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
380 6156 : _M_get_Tp_allocator());
381 6156 : _M_deallocate(this->_M_impl._M_start,
382 : this->_M_impl._M_end_of_storage
383 : - this->_M_impl._M_start);
384 6156 : this->_M_impl._M_start = __new_start;
385 6156 : this->_M_impl._M_finish = __new_finish;
386 6156 : this->_M_impl._M_end_of_storage = __new_start + __len;
387 : }
388 14275 : }
389 14275 : }
390 :
391 : template<typename _Tp, typename _Alloc> template<typename _InputIterator>
392 : void
393 : vector<_Tp, _Alloc>::
394 : _M_range_insert(iterator __pos, _InputIterator __first,
395 : _InputIterator __last, std::input_iterator_tag)
396 : {
397 : for (; __first != __last; ++__first)
398 : {
399 : __pos = insert(__pos, *__first);
400 : ++__pos;
401 : }
402 : }
403 :
404 : template<typename _Tp, typename _Alloc>
405 : template<typename _ForwardIterator>
406 : void
407 : vector<_Tp, _Alloc>::
408 : _M_range_insert(iterator __position, _ForwardIterator __first,
409 : _ForwardIterator __last, std::forward_iterator_tag)
410 : {
411 0 : if (__first != __last)
412 : {
413 0 : const size_type __n = std::distance(__first, __last);
414 0 : if (size_type(this->_M_impl._M_end_of_storage
415 : - this->_M_impl._M_finish) >= __n)
416 : {
417 0 : const size_type __elems_after = end() - __position;
418 0 : pointer __old_finish(this->_M_impl._M_finish);
419 0 : if (__elems_after > __n)
420 : {
421 0 : std::__uninitialized_copy_a(this->_M_impl._M_finish - __n,
422 : this->_M_impl._M_finish,
423 : this->_M_impl._M_finish,
424 0 : _M_get_Tp_allocator());
425 0 : this->_M_impl._M_finish += __n;
426 0 : std::copy_backward(__position.base(), __old_finish - __n,
427 : __old_finish);
428 0 : std::copy(__first, __last, __position);
429 0 : }
430 : else
431 : {
432 0 : _ForwardIterator __mid = __first;
433 0 : std::advance(__mid, __elems_after);
434 0 : std::__uninitialized_copy_a(__mid, __last,
435 : this->_M_impl._M_finish,
436 0 : _M_get_Tp_allocator());
437 0 : this->_M_impl._M_finish += __n - __elems_after;
438 0 : std::__uninitialized_copy_a(__position.base(),
439 : __old_finish,
440 : this->_M_impl._M_finish,
441 0 : _M_get_Tp_allocator());
442 0 : this->_M_impl._M_finish += __elems_after;
443 0 : std::copy(__first, __mid, __position);
444 : }
445 0 : }
446 : else
447 : {
448 0 : const size_type __old_size = size();
449 0 : if (this->max_size() - __old_size < __n)
450 0 : __throw_length_error(__N("vector::_M_range_insert"));
451 :
452 : // See _M_insert_aux above.
453 0 : size_type __len = __old_size + std::max(__old_size, __n);
454 0 : if (__len < __old_size)
455 0 : __len = this->max_size();
456 :
457 0 : pointer __new_start(this->_M_allocate(__len));
458 0 : pointer __new_finish(__new_start);
459 : try
460 : {
461 : __new_finish =
462 0 : std::__uninitialized_copy_a(this->_M_impl._M_start,
463 0 : __position.base(),
464 : __new_start,
465 0 : _M_get_Tp_allocator());
466 : __new_finish =
467 0 : std::__uninitialized_copy_a(__first, __last, __new_finish,
468 0 : _M_get_Tp_allocator());
469 : __new_finish =
470 0 : std::__uninitialized_copy_a(__position.base(),
471 : this->_M_impl._M_finish,
472 : __new_finish,
473 0 : _M_get_Tp_allocator());
474 0 : }
475 : catch(...)
476 : {
477 0 : std::_Destroy(__new_start, __new_finish,
478 0 : _M_get_Tp_allocator());
479 0 : _M_deallocate(__new_start, __len);
480 0 : __throw_exception_again;
481 : }
482 0 : std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
483 0 : _M_get_Tp_allocator());
484 0 : _M_deallocate(this->_M_impl._M_start,
485 : this->_M_impl._M_end_of_storage
486 : - this->_M_impl._M_start);
487 0 : this->_M_impl._M_start = __new_start;
488 0 : this->_M_impl._M_finish = __new_finish;
489 0 : this->_M_impl._M_end_of_storage = __new_start + __len;
490 : }
491 0 : }
492 0 : }
493 :
494 : _GLIBCXX_END_NESTED_NAMESPACE
495 :
496 : #endif /* _VECTOR_TCC */
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