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725dc051 BK |
1 | // Components for manipulating sequences of characters -*- C++ -*- |
2 | ||
cbe34bb5 | 3 | // Copyright (C) 1997-2017 Free Software Foundation, Inc. |
725dc051 BK |
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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
725dc051 BK |
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 | ||
748086b7 JJ |
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/>. | |
725dc051 | 24 | |
f910786b | 25 | /** @file bits/basic_string.h |
729e3d3f | 26 | * This is an internal header file, included by other library headers. |
f910786b | 27 | * Do not attempt to use it directly. @headername{string} |
729e3d3f PE |
28 | */ |
29 | ||
143c27b0 BK |
30 | // |
31 | // ISO C++ 14882: 21 Strings library | |
32 | // | |
33 | ||
3d7c150e BK |
34 | #ifndef _BASIC_STRING_H |
35 | #define _BASIC_STRING_H 1 | |
725dc051 | 36 | |
b0a85b86 GDR |
37 | #pragma GCC system_header |
38 | ||
2e362c74 | 39 | #include <ext/atomicity.h> |
34a2b755 | 40 | #include <ext/alloc_traits.h> |
285b36d6 | 41 | #include <debug/debug.h> |
e25d2617 | 42 | |
734f5023 | 43 | #if __cplusplus >= 201103L |
988499f4 | 44 | #include <initializer_list> |
a7d5d7e2 | 45 | #endif |
725dc051 | 46 | |
ca8f2cb1 VV |
47 | #if __cplusplus > 201402L |
48 | # include <string_view> | |
49 | #endif | |
50 | ||
51 | ||
12ffa228 BK |
52 | namespace std _GLIBCXX_VISIBILITY(default) |
53 | { | |
54 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
3cbc7af0 | 55 | |
34a2b755 JW |
56 | #if _GLIBCXX_USE_CXX11_ABI |
57 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 | |
58 | /** | |
59 | * @class basic_string basic_string.h <string> | |
60 | * @brief Managing sequences of characters and character-like objects. | |
61 | * | |
62 | * @ingroup strings | |
63 | * @ingroup sequences | |
64 | * | |
65 | * @tparam _CharT Type of character | |
66 | * @tparam _Traits Traits for character type, defaults to | |
67 | * char_traits<_CharT>. | |
68 | * @tparam _Alloc Allocator type, defaults to allocator<_CharT>. | |
69 | * | |
70 | * Meets the requirements of a <a href="tables.html#65">container</a>, a | |
71 | * <a href="tables.html#66">reversible container</a>, and a | |
72 | * <a href="tables.html#67">sequence</a>. Of the | |
73 | * <a href="tables.html#68">optional sequence requirements</a>, only | |
74 | * @c push_back, @c at, and @c %array access are supported. | |
75 | */ | |
76 | template<typename _CharT, typename _Traits, typename _Alloc> | |
77 | class basic_string | |
78 | { | |
79 | typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template | |
80 | rebind<_CharT>::other _Char_alloc_type; | |
81 | typedef __gnu_cxx::__alloc_traits<_Char_alloc_type> _Alloc_traits; | |
82 | ||
83 | // Types: | |
84 | public: | |
85 | typedef _Traits traits_type; | |
86 | typedef typename _Traits::char_type value_type; | |
87 | typedef _Char_alloc_type allocator_type; | |
88 | typedef typename _Alloc_traits::size_type size_type; | |
89 | typedef typename _Alloc_traits::difference_type difference_type; | |
90 | typedef typename _Alloc_traits::reference reference; | |
91 | typedef typename _Alloc_traits::const_reference const_reference; | |
92 | typedef typename _Alloc_traits::pointer pointer; | |
93 | typedef typename _Alloc_traits::const_pointer const_pointer; | |
94 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; | |
95 | typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> | |
96 | const_iterator; | |
97 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; | |
98 | typedef std::reverse_iterator<iterator> reverse_iterator; | |
99 | ||
100 | /// Value returned by various member functions when they fail. | |
101 | static const size_type npos = static_cast<size_type>(-1); | |
102 | ||
103 | private: | |
104 | // type used for positions in insert, erase etc. | |
105 | #if __cplusplus < 201103L | |
106 | typedef iterator __const_iterator; | |
107 | #else | |
108 | typedef const_iterator __const_iterator; | |
109 | #endif | |
110 | ||
ca8f2cb1 VV |
111 | #if __cplusplus > 201402L |
112 | // A helper type for avoiding boiler-plate. | |
113 | typedef basic_string_view<_CharT, _Traits> __sv_type; | |
92daf2de JW |
114 | |
115 | template<typename _Tp, typename _Res> | |
116 | using _If_sv = enable_if_t< | |
117 | __and_<is_convertible<const _Tp&, __sv_type>, | |
118 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, | |
119 | _Res>; | |
ca8f2cb1 VV |
120 | #endif |
121 | ||
34a2b755 JW |
122 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html |
123 | struct _Alloc_hider : allocator_type // TODO check __is_final | |
124 | { | |
8cab3d18 | 125 | #if __cplusplus < 201103L |
34a2b755 JW |
126 | _Alloc_hider(pointer __dat, const _Alloc& __a = _Alloc()) |
127 | : allocator_type(__a), _M_p(__dat) { } | |
8cab3d18 JW |
128 | #else |
129 | _Alloc_hider(pointer __dat, const _Alloc& __a) | |
130 | : allocator_type(__a), _M_p(__dat) { } | |
131 | ||
132 | _Alloc_hider(pointer __dat, _Alloc&& __a = _Alloc()) | |
133 | : allocator_type(std::move(__a)), _M_p(__dat) { } | |
134 | #endif | |
34a2b755 JW |
135 | |
136 | pointer _M_p; // The actual data. | |
137 | }; | |
138 | ||
139 | _Alloc_hider _M_dataplus; | |
140 | size_type _M_string_length; | |
141 | ||
59aa28e8 | 142 | enum { _S_local_capacity = 15 / sizeof(_CharT) }; |
34a2b755 JW |
143 | |
144 | union | |
145 | { | |
146 | _CharT _M_local_buf[_S_local_capacity + 1]; | |
147 | size_type _M_allocated_capacity; | |
148 | }; | |
149 | ||
150 | void | |
151 | _M_data(pointer __p) | |
152 | { _M_dataplus._M_p = __p; } | |
153 | ||
154 | void | |
155 | _M_length(size_type __length) | |
156 | { _M_string_length = __length; } | |
157 | ||
158 | pointer | |
159 | _M_data() const | |
160 | { return _M_dataplus._M_p; } | |
161 | ||
162 | pointer | |
163 | _M_local_data() | |
164 | { | |
165 | #if __cplusplus >= 201103L | |
166 | return std::pointer_traits<pointer>::pointer_to(*_M_local_buf); | |
167 | #else | |
168 | return pointer(_M_local_buf); | |
169 | #endif | |
170 | } | |
171 | ||
172 | const_pointer | |
173 | _M_local_data() const | |
174 | { | |
175 | #if __cplusplus >= 201103L | |
176 | return std::pointer_traits<const_pointer>::pointer_to(*_M_local_buf); | |
177 | #else | |
178 | return const_pointer(_M_local_buf); | |
179 | #endif | |
180 | } | |
181 | ||
182 | void | |
183 | _M_capacity(size_type __capacity) | |
184 | { _M_allocated_capacity = __capacity; } | |
185 | ||
186 | void | |
187 | _M_set_length(size_type __n) | |
188 | { | |
189 | _M_length(__n); | |
190 | traits_type::assign(_M_data()[__n], _CharT()); | |
191 | } | |
192 | ||
193 | bool | |
194 | _M_is_local() const | |
195 | { return _M_data() == _M_local_data(); } | |
196 | ||
197 | // Create & Destroy | |
198 | pointer | |
199 | _M_create(size_type&, size_type); | |
200 | ||
201 | void | |
202 | _M_dispose() | |
203 | { | |
204 | if (!_M_is_local()) | |
205 | _M_destroy(_M_allocated_capacity); | |
206 | } | |
207 | ||
208 | void | |
209 | _M_destroy(size_type __size) throw() | |
210 | { _Alloc_traits::deallocate(_M_get_allocator(), _M_data(), __size + 1); } | |
211 | ||
212 | // _M_construct_aux is used to implement the 21.3.1 para 15 which | |
213 | // requires special behaviour if _InIterator is an integral type | |
214 | template<typename _InIterator> | |
215 | void | |
216 | _M_construct_aux(_InIterator __beg, _InIterator __end, | |
217 | std::__false_type) | |
218 | { | |
219 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; | |
220 | _M_construct(__beg, __end, _Tag()); | |
221 | } | |
222 | ||
223 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
224 | // 438. Ambiguity in the "do the right thing" clause | |
225 | template<typename _Integer> | |
226 | void | |
227 | _M_construct_aux(_Integer __beg, _Integer __end, std::__true_type) | |
228 | { _M_construct_aux_2(static_cast<size_type>(__beg), __end); } | |
229 | ||
230 | void | |
231 | _M_construct_aux_2(size_type __req, _CharT __c) | |
232 | { _M_construct(__req, __c); } | |
233 | ||
234 | template<typename _InIterator> | |
235 | void | |
236 | _M_construct(_InIterator __beg, _InIterator __end) | |
237 | { | |
238 | typedef typename std::__is_integer<_InIterator>::__type _Integral; | |
239 | _M_construct_aux(__beg, __end, _Integral()); | |
240 | } | |
241 | ||
242 | // For Input Iterators, used in istreambuf_iterators, etc. | |
243 | template<typename _InIterator> | |
244 | void | |
245 | _M_construct(_InIterator __beg, _InIterator __end, | |
246 | std::input_iterator_tag); | |
247 | ||
248 | // For forward_iterators up to random_access_iterators, used for | |
249 | // string::iterator, _CharT*, etc. | |
250 | template<typename _FwdIterator> | |
251 | void | |
252 | _M_construct(_FwdIterator __beg, _FwdIterator __end, | |
253 | std::forward_iterator_tag); | |
254 | ||
255 | void | |
256 | _M_construct(size_type __req, _CharT __c); | |
257 | ||
258 | allocator_type& | |
259 | _M_get_allocator() | |
260 | { return _M_dataplus; } | |
261 | ||
262 | const allocator_type& | |
263 | _M_get_allocator() const | |
264 | { return _M_dataplus; } | |
265 | ||
266 | private: | |
267 | ||
268 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
269 | // The explicit instantiations in misc-inst.cc require this due to | |
270 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64063 | |
271 | template<typename _Tp, bool _Requires = | |
272 | !__are_same<_Tp, _CharT*>::__value | |
273 | && !__are_same<_Tp, const _CharT*>::__value | |
274 | && !__are_same<_Tp, iterator>::__value | |
275 | && !__are_same<_Tp, const_iterator>::__value> | |
276 | struct __enable_if_not_native_iterator | |
277 | { typedef basic_string& __type; }; | |
278 | template<typename _Tp> | |
279 | struct __enable_if_not_native_iterator<_Tp, false> { }; | |
280 | #endif | |
281 | ||
282 | size_type | |
283 | _M_check(size_type __pos, const char* __s) const | |
284 | { | |
285 | if (__pos > this->size()) | |
286 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > " | |
287 | "this->size() (which is %zu)"), | |
288 | __s, __pos, this->size()); | |
289 | return __pos; | |
290 | } | |
291 | ||
292 | void | |
293 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const | |
294 | { | |
295 | if (this->max_size() - (this->size() - __n1) < __n2) | |
296 | __throw_length_error(__N(__s)); | |
297 | } | |
298 | ||
299 | ||
300 | // NB: _M_limit doesn't check for a bad __pos value. | |
301 | size_type | |
302 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT | |
303 | { | |
304 | const bool __testoff = __off < this->size() - __pos; | |
305 | return __testoff ? __off : this->size() - __pos; | |
306 | } | |
307 | ||
308 | // True if _Rep and source do not overlap. | |
309 | bool | |
310 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT | |
311 | { | |
2d60da10 JW |
312 | return (less<const _CharT*>()(__s, _M_data()) |
313 | || less<const _CharT*>()(_M_data() + this->size(), __s)); | |
34a2b755 JW |
314 | } |
315 | ||
316 | // When __n = 1 way faster than the general multichar | |
317 | // traits_type::copy/move/assign. | |
318 | static void | |
319 | _S_copy(_CharT* __d, const _CharT* __s, size_type __n) | |
320 | { | |
321 | if (__n == 1) | |
322 | traits_type::assign(*__d, *__s); | |
323 | else | |
324 | traits_type::copy(__d, __s, __n); | |
325 | } | |
326 | ||
327 | static void | |
328 | _S_move(_CharT* __d, const _CharT* __s, size_type __n) | |
329 | { | |
330 | if (__n == 1) | |
331 | traits_type::assign(*__d, *__s); | |
332 | else | |
333 | traits_type::move(__d, __s, __n); | |
334 | } | |
335 | ||
336 | static void | |
337 | _S_assign(_CharT* __d, size_type __n, _CharT __c) | |
338 | { | |
339 | if (__n == 1) | |
340 | traits_type::assign(*__d, __c); | |
341 | else | |
342 | traits_type::assign(__d, __n, __c); | |
343 | } | |
344 | ||
345 | // _S_copy_chars is a separate template to permit specialization | |
346 | // to optimize for the common case of pointers as iterators. | |
347 | template<class _Iterator> | |
348 | static void | |
349 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) | |
34a2b755 | 350 | { |
f970a17d | 351 | for (; __k1 != __k2; ++__k1, (void)++__p) |
34a2b755 JW |
352 | traits_type::assign(*__p, *__k1); // These types are off. |
353 | } | |
354 | ||
355 | static void | |
356 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPT | |
357 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
358 | ||
359 | static void | |
360 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) | |
361 | _GLIBCXX_NOEXCEPT | |
362 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
363 | ||
364 | static void | |
365 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPT | |
366 | { _S_copy(__p, __k1, __k2 - __k1); } | |
367 | ||
368 | static void | |
369 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) | |
370 | _GLIBCXX_NOEXCEPT | |
371 | { _S_copy(__p, __k1, __k2 - __k1); } | |
372 | ||
373 | static int | |
374 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPT | |
375 | { | |
376 | const difference_type __d = difference_type(__n1 - __n2); | |
377 | ||
378 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) | |
379 | return __gnu_cxx::__numeric_traits<int>::__max; | |
380 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) | |
381 | return __gnu_cxx::__numeric_traits<int>::__min; | |
382 | else | |
383 | return int(__d); | |
384 | } | |
385 | ||
386 | void | |
a7d47f35 | 387 | _M_assign(const basic_string&); |
34a2b755 JW |
388 | |
389 | void | |
390 | _M_mutate(size_type __pos, size_type __len1, const _CharT* __s, | |
391 | size_type __len2); | |
392 | ||
393 | void | |
394 | _M_erase(size_type __pos, size_type __n); | |
395 | ||
396 | public: | |
397 | // Construct/copy/destroy: | |
398 | // NB: We overload ctors in some cases instead of using default | |
399 | // arguments, per 17.4.4.4 para. 2 item 2. | |
400 | ||
401 | /** | |
402 | * @brief Default constructor creates an empty string. | |
403 | */ | |
bcb896ab | 404 | basic_string() |
5caff414 | 405 | _GLIBCXX_NOEXCEPT_IF(is_nothrow_default_constructible<_Alloc>::value) |
34a2b755 JW |
406 | : _M_dataplus(_M_local_data()) |
407 | { _M_set_length(0); } | |
408 | ||
409 | /** | |
410 | * @brief Construct an empty string using allocator @a a. | |
411 | */ | |
412 | explicit | |
5caff414 | 413 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPT |
34a2b755 JW |
414 | : _M_dataplus(_M_local_data(), __a) |
415 | { _M_set_length(0); } | |
416 | ||
417 | /** | |
418 | * @brief Construct string with copy of value of @a __str. | |
419 | * @param __str Source string. | |
420 | */ | |
421 | basic_string(const basic_string& __str) | |
5caff414 JW |
422 | : _M_dataplus(_M_local_data(), |
423 | _Alloc_traits::_S_select_on_copy(__str._M_get_allocator())) | |
34a2b755 JW |
424 | { _M_construct(__str._M_data(), __str._M_data() + __str.length()); } |
425 | ||
86bbf15b JW |
426 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
427 | // 2583. no way to supply an allocator for basic_string(str, pos) | |
34a2b755 JW |
428 | /** |
429 | * @brief Construct string as copy of a substring. | |
430 | * @param __str Source string. | |
431 | * @param __pos Index of first character to copy from. | |
86bbf15b | 432 | * @param __a Allocator to use. |
34a2b755 | 433 | */ |
34a2b755 | 434 | basic_string(const basic_string& __str, size_type __pos, |
86bbf15b JW |
435 | const _Alloc& __a = _Alloc()) |
436 | : _M_dataplus(_M_local_data(), __a) | |
437 | { | |
438 | const _CharT* __start = __str._M_data() | |
439 | + __str._M_check(__pos, "basic_string::basic_string"); | |
440 | _M_construct(__start, __start + __str._M_limit(__pos, npos)); | |
441 | } | |
442 | ||
443 | /** | |
444 | * @brief Construct string as copy of a substring. | |
445 | * @param __str Source string. | |
446 | * @param __pos Index of first character to copy from. | |
447 | * @param __n Number of characters to copy. | |
448 | */ | |
449 | basic_string(const basic_string& __str, size_type __pos, | |
450 | size_type __n) | |
34a2b755 JW |
451 | : _M_dataplus(_M_local_data()) |
452 | { | |
2d60da10 | 453 | const _CharT* __start = __str._M_data() |
34a2b755 JW |
454 | + __str._M_check(__pos, "basic_string::basic_string"); |
455 | _M_construct(__start, __start + __str._M_limit(__pos, __n)); | |
456 | } | |
457 | ||
458 | /** | |
459 | * @brief Construct string as copy of a substring. | |
460 | * @param __str Source string. | |
461 | * @param __pos Index of first character to copy from. | |
86bbf15b | 462 | * @param __n Number of characters to copy. |
34a2b755 JW |
463 | * @param __a Allocator to use. |
464 | */ | |
465 | basic_string(const basic_string& __str, size_type __pos, | |
466 | size_type __n, const _Alloc& __a) | |
467 | : _M_dataplus(_M_local_data(), __a) | |
468 | { | |
2d60da10 JW |
469 | const _CharT* __start |
470 | = __str._M_data() + __str._M_check(__pos, "string::string"); | |
34a2b755 JW |
471 | _M_construct(__start, __start + __str._M_limit(__pos, __n)); |
472 | } | |
473 | ||
474 | /** | |
475 | * @brief Construct string initialized by a character %array. | |
476 | * @param __s Source character %array. | |
477 | * @param __n Number of characters to copy. | |
478 | * @param __a Allocator to use (default is default allocator). | |
479 | * | |
480 | * NB: @a __s must have at least @a __n characters, '\\0' | |
481 | * has no special meaning. | |
482 | */ | |
483 | basic_string(const _CharT* __s, size_type __n, | |
484 | const _Alloc& __a = _Alloc()) | |
485 | : _M_dataplus(_M_local_data(), __a) | |
486 | { _M_construct(__s, __s + __n); } | |
487 | ||
488 | /** | |
489 | * @brief Construct string as copy of a C string. | |
490 | * @param __s Source C string. | |
491 | * @param __a Allocator to use (default is default allocator). | |
492 | */ | |
493 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()) | |
494 | : _M_dataplus(_M_local_data(), __a) | |
495 | { _M_construct(__s, __s ? __s + traits_type::length(__s) : __s+npos); } | |
496 | ||
497 | /** | |
498 | * @brief Construct string as multiple characters. | |
499 | * @param __n Number of characters. | |
500 | * @param __c Character to use. | |
501 | * @param __a Allocator to use (default is default allocator). | |
502 | */ | |
503 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()) | |
504 | : _M_dataplus(_M_local_data(), __a) | |
505 | { _M_construct(__n, __c); } | |
506 | ||
507 | #if __cplusplus >= 201103L | |
508 | /** | |
509 | * @brief Move construct string. | |
510 | * @param __str Source string. | |
511 | * | |
512 | * The newly-created string contains the exact contents of @a __str. | |
513 | * @a __str is a valid, but unspecified string. | |
514 | **/ | |
515 | basic_string(basic_string&& __str) noexcept | |
516 | : _M_dataplus(_M_local_data(), std::move(__str._M_get_allocator())) | |
517 | { | |
518 | if (__str._M_is_local()) | |
519 | { | |
faa7d78e JW |
520 | traits_type::copy(_M_local_buf, __str._M_local_buf, |
521 | _S_local_capacity + 1); | |
34a2b755 JW |
522 | } |
523 | else | |
524 | { | |
525 | _M_data(__str._M_data()); | |
526 | _M_capacity(__str._M_allocated_capacity); | |
527 | } | |
528 | ||
529 | // Must use _M_length() here not _M_set_length() because | |
530 | // basic_stringbuf relies on writing into unallocated capacity so | |
531 | // we mess up the contents if we put a '\0' in the string. | |
532 | _M_length(__str.length()); | |
533 | __str._M_data(__str._M_local_data()); | |
534 | __str._M_set_length(0); | |
535 | } | |
536 | ||
537 | /** | |
538 | * @brief Construct string from an initializer %list. | |
539 | * @param __l std::initializer_list of characters. | |
540 | * @param __a Allocator to use (default is default allocator). | |
541 | */ | |
542 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()) | |
543 | : _M_dataplus(_M_local_data(), __a) | |
544 | { _M_construct(__l.begin(), __l.end()); } | |
545 | ||
546 | basic_string(const basic_string& __str, const _Alloc& __a) | |
547 | : _M_dataplus(_M_local_data(), __a) | |
548 | { _M_construct(__str.begin(), __str.end()); } | |
549 | ||
550 | basic_string(basic_string&& __str, const _Alloc& __a) | |
5caff414 | 551 | noexcept(_Alloc_traits::_S_always_equal()) |
34a2b755 JW |
552 | : _M_dataplus(_M_local_data(), __a) |
553 | { | |
5caff414 JW |
554 | if (__str._M_is_local()) |
555 | { | |
556 | traits_type::copy(_M_local_buf, __str._M_local_buf, | |
557 | _S_local_capacity + 1); | |
558 | _M_length(__str.length()); | |
559 | __str._M_set_length(0); | |
560 | } | |
561 | else if (_Alloc_traits::_S_always_equal() | |
562 | || __str.get_allocator() == __a) | |
563 | { | |
564 | _M_data(__str._M_data()); | |
565 | _M_length(__str.length()); | |
566 | _M_capacity(__str._M_allocated_capacity); | |
567 | __str._M_data(__str._M_local_buf); | |
568 | __str._M_set_length(0); | |
569 | } | |
34a2b755 JW |
570 | else |
571 | _M_construct(__str.begin(), __str.end()); | |
572 | } | |
573 | ||
574 | #endif // C++11 | |
575 | ||
576 | /** | |
577 | * @brief Construct string as copy of a range. | |
578 | * @param __beg Start of range. | |
579 | * @param __end End of range. | |
580 | * @param __a Allocator to use (default is default allocator). | |
581 | */ | |
582 | #if __cplusplus >= 201103L | |
583 | template<typename _InputIterator, | |
584 | typename = std::_RequireInputIter<_InputIterator>> | |
585 | #else | |
586 | template<typename _InputIterator> | |
587 | #endif | |
588 | basic_string(_InputIterator __beg, _InputIterator __end, | |
589 | const _Alloc& __a = _Alloc()) | |
590 | : _M_dataplus(_M_local_data(), __a) | |
591 | { _M_construct(__beg, __end); } | |
592 | ||
ca8f2cb1 | 593 | #if __cplusplus > 201402L |
bf56b0b8 JW |
594 | /** |
595 | * @brief Construct string from a substring of a string_view. | |
596 | * @param __t Source string view. | |
597 | * @param __pos The index of the first character to copy from __t. | |
598 | * @param __n The number of characters to copy from __t. | |
599 | * @param __a Allocator to use. | |
600 | */ | |
3663671a | 601 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
bf56b0b8 JW |
602 | basic_string(const _Tp& __t, size_type __pos, size_type __n, |
603 | const _Alloc& __a = _Alloc()) | |
604 | : basic_string(__sv_type(__t).substr(__pos, __n), __a) { } | |
605 | ||
ca8f2cb1 VV |
606 | /** |
607 | * @brief Construct string from a string_view. | |
608 | * @param __sv Source string view. | |
609 | * @param __a Allocator to use (default is default allocator). | |
610 | */ | |
bf56b0b8 JW |
611 | explicit |
612 | basic_string(__sv_type __sv, const _Alloc& __a = _Alloc()) | |
613 | : basic_string(__sv.data(), __sv.size(), __a) { } | |
ca8f2cb1 VV |
614 | #endif // C++17 |
615 | ||
34a2b755 JW |
616 | /** |
617 | * @brief Destroy the string instance. | |
618 | */ | |
619 | ~basic_string() | |
620 | { _M_dispose(); } | |
621 | ||
622 | /** | |
623 | * @brief Assign the value of @a str to this string. | |
624 | * @param __str Source string. | |
625 | */ | |
626 | basic_string& | |
627 | operator=(const basic_string& __str) | |
5caff414 JW |
628 | { |
629 | #if __cplusplus >= 201103L | |
11d10beb JW |
630 | if (_Alloc_traits::_S_propagate_on_copy_assign()) |
631 | { | |
632 | if (!_Alloc_traits::_S_always_equal() && !_M_is_local() | |
633 | && _M_get_allocator() != __str._M_get_allocator()) | |
634 | { | |
635 | // Propagating allocator cannot free existing storage so must | |
636 | // deallocate it before replacing current allocator. | |
637 | if (__str.size() <= _S_local_capacity) | |
638 | { | |
639 | _M_destroy(_M_allocated_capacity); | |
640 | _M_data(_M_local_data()); | |
641 | _M_set_length(0); | |
642 | } | |
643 | else | |
644 | { | |
645 | const auto __len = __str.size(); | |
646 | auto __alloc = __str._M_get_allocator(); | |
647 | // If this allocation throws there are no effects: | |
648 | auto __ptr = _Alloc_traits::allocate(__alloc, __len + 1); | |
649 | _M_destroy(_M_allocated_capacity); | |
650 | _M_data(__ptr); | |
651 | _M_capacity(__len); | |
652 | _M_set_length(__len); | |
653 | } | |
654 | } | |
655 | std::__alloc_on_copy(_M_get_allocator(), __str._M_get_allocator()); | |
656 | } | |
5caff414 | 657 | #endif |
11d10beb | 658 | return this->assign(__str); |
5caff414 | 659 | } |
34a2b755 JW |
660 | |
661 | /** | |
662 | * @brief Copy contents of @a s into this string. | |
663 | * @param __s Source null-terminated string. | |
664 | */ | |
665 | basic_string& | |
666 | operator=(const _CharT* __s) | |
667 | { return this->assign(__s); } | |
668 | ||
669 | /** | |
670 | * @brief Set value to string of length 1. | |
671 | * @param __c Source character. | |
672 | * | |
673 | * Assigning to a character makes this string length 1 and | |
674 | * (*this)[0] == @a c. | |
675 | */ | |
676 | basic_string& | |
677 | operator=(_CharT __c) | |
678 | { | |
679 | this->assign(1, __c); | |
680 | return *this; | |
681 | } | |
682 | ||
683 | #if __cplusplus >= 201103L | |
684 | /** | |
685 | * @brief Move assign the value of @a str to this string. | |
686 | * @param __str Source string. | |
687 | * | |
688 | * The contents of @a str are moved into this string (without copying). | |
689 | * @a str is a valid, but unspecified string. | |
690 | **/ | |
691 | // PR 58265, this should be noexcept. | |
692 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
693 | // 2063. Contradictory requirements for string move assignment | |
694 | basic_string& | |
695 | operator=(basic_string&& __str) | |
5caff414 | 696 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 | 697 | { |
5caff414 JW |
698 | if (!_M_is_local() && _Alloc_traits::_S_propagate_on_move_assign() |
699 | && !_Alloc_traits::_S_always_equal() | |
700 | && _M_get_allocator() != __str._M_get_allocator()) | |
701 | { | |
702 | // Destroy existing storage before replacing allocator. | |
703 | _M_destroy(_M_allocated_capacity); | |
704 | _M_data(_M_local_data()); | |
705 | _M_set_length(0); | |
706 | } | |
707 | // Replace allocator if POCMA is true. | |
708 | std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator()); | |
709 | ||
710 | if (!__str._M_is_local() | |
711 | && (_Alloc_traits::_S_propagate_on_move_assign() | |
712 | || _Alloc_traits::_S_always_equal())) | |
713 | { | |
714 | pointer __data = nullptr; | |
715 | size_type __capacity; | |
716 | if (!_M_is_local()) | |
717 | { | |
718 | if (_Alloc_traits::_S_always_equal()) | |
719 | { | |
720 | __data = _M_data(); | |
721 | __capacity = _M_allocated_capacity; | |
722 | } | |
723 | else | |
724 | _M_destroy(_M_allocated_capacity); | |
725 | } | |
726 | ||
727 | _M_data(__str._M_data()); | |
728 | _M_length(__str.length()); | |
729 | _M_capacity(__str._M_allocated_capacity); | |
730 | if (__data) | |
731 | { | |
732 | __str._M_data(__data); | |
733 | __str._M_capacity(__capacity); | |
734 | } | |
735 | else | |
736 | __str._M_data(__str._M_local_buf); | |
737 | } | |
738 | else | |
739 | assign(__str); | |
740 | __str.clear(); | |
34a2b755 JW |
741 | return *this; |
742 | } | |
743 | ||
744 | /** | |
745 | * @brief Set value to string constructed from initializer %list. | |
746 | * @param __l std::initializer_list. | |
747 | */ | |
748 | basic_string& | |
749 | operator=(initializer_list<_CharT> __l) | |
750 | { | |
751 | this->assign(__l.begin(), __l.size()); | |
752 | return *this; | |
753 | } | |
754 | #endif // C++11 | |
755 | ||
ca8f2cb1 VV |
756 | #if __cplusplus > 201402L |
757 | /** | |
758 | * @brief Set value to string constructed from a string_view. | |
759 | * @param __sv A string_view. | |
760 | */ | |
4f83482f JW |
761 | template<typename _Tp> |
762 | _If_sv<_Tp, basic_string&> | |
763 | operator=(_Tp __sv) | |
764 | { return this->assign(__sv); } | |
ca8f2cb1 VV |
765 | |
766 | /** | |
767 | * @brief Convert to a string_view. | |
768 | * @return A string_view. | |
769 | */ | |
770 | operator __sv_type() const noexcept | |
771 | { return __sv_type(data(), size()); } | |
772 | #endif // C++17 | |
773 | ||
34a2b755 JW |
774 | // Iterators: |
775 | /** | |
776 | * Returns a read/write iterator that points to the first character in | |
777 | * the %string. | |
778 | */ | |
779 | iterator | |
780 | begin() _GLIBCXX_NOEXCEPT | |
781 | { return iterator(_M_data()); } | |
782 | ||
783 | /** | |
784 | * Returns a read-only (constant) iterator that points to the first | |
785 | * character in the %string. | |
786 | */ | |
787 | const_iterator | |
788 | begin() const _GLIBCXX_NOEXCEPT | |
789 | { return const_iterator(_M_data()); } | |
790 | ||
791 | /** | |
792 | * Returns a read/write iterator that points one past the last | |
793 | * character in the %string. | |
794 | */ | |
795 | iterator | |
796 | end() _GLIBCXX_NOEXCEPT | |
797 | { return iterator(_M_data() + this->size()); } | |
798 | ||
799 | /** | |
800 | * Returns a read-only (constant) iterator that points one past the | |
801 | * last character in the %string. | |
802 | */ | |
803 | const_iterator | |
804 | end() const _GLIBCXX_NOEXCEPT | |
805 | { return const_iterator(_M_data() + this->size()); } | |
806 | ||
807 | /** | |
808 | * Returns a read/write reverse iterator that points to the last | |
809 | * character in the %string. Iteration is done in reverse element | |
810 | * order. | |
811 | */ | |
812 | reverse_iterator | |
813 | rbegin() _GLIBCXX_NOEXCEPT | |
814 | { return reverse_iterator(this->end()); } | |
815 | ||
816 | /** | |
817 | * Returns a read-only (constant) reverse iterator that points | |
818 | * to the last character in the %string. Iteration is done in | |
819 | * reverse element order. | |
820 | */ | |
821 | const_reverse_iterator | |
822 | rbegin() const _GLIBCXX_NOEXCEPT | |
823 | { return const_reverse_iterator(this->end()); } | |
824 | ||
825 | /** | |
826 | * Returns a read/write reverse iterator that points to one before the | |
827 | * first character in the %string. Iteration is done in reverse | |
828 | * element order. | |
829 | */ | |
830 | reverse_iterator | |
831 | rend() _GLIBCXX_NOEXCEPT | |
832 | { return reverse_iterator(this->begin()); } | |
833 | ||
834 | /** | |
835 | * Returns a read-only (constant) reverse iterator that points | |
836 | * to one before the first character in the %string. Iteration | |
837 | * is done in reverse element order. | |
838 | */ | |
839 | const_reverse_iterator | |
840 | rend() const _GLIBCXX_NOEXCEPT | |
841 | { return const_reverse_iterator(this->begin()); } | |
842 | ||
843 | #if __cplusplus >= 201103L | |
844 | /** | |
845 | * Returns a read-only (constant) iterator that points to the first | |
846 | * character in the %string. | |
847 | */ | |
848 | const_iterator | |
849 | cbegin() const noexcept | |
850 | { return const_iterator(this->_M_data()); } | |
851 | ||
852 | /** | |
853 | * Returns a read-only (constant) iterator that points one past the | |
854 | * last character in the %string. | |
855 | */ | |
856 | const_iterator | |
857 | cend() const noexcept | |
858 | { return const_iterator(this->_M_data() + this->size()); } | |
859 | ||
860 | /** | |
861 | * Returns a read-only (constant) reverse iterator that points | |
862 | * to the last character in the %string. Iteration is done in | |
863 | * reverse element order. | |
864 | */ | |
865 | const_reverse_iterator | |
866 | crbegin() const noexcept | |
867 | { return const_reverse_iterator(this->end()); } | |
868 | ||
869 | /** | |
870 | * Returns a read-only (constant) reverse iterator that points | |
871 | * to one before the first character in the %string. Iteration | |
872 | * is done in reverse element order. | |
873 | */ | |
874 | const_reverse_iterator | |
875 | crend() const noexcept | |
876 | { return const_reverse_iterator(this->begin()); } | |
877 | #endif | |
878 | ||
879 | public: | |
880 | // Capacity: | |
881 | /// Returns the number of characters in the string, not including any | |
882 | /// null-termination. | |
883 | size_type | |
884 | size() const _GLIBCXX_NOEXCEPT | |
885 | { return _M_string_length; } | |
886 | ||
887 | /// Returns the number of characters in the string, not including any | |
888 | /// null-termination. | |
889 | size_type | |
890 | length() const _GLIBCXX_NOEXCEPT | |
891 | { return _M_string_length; } | |
892 | ||
893 | /// Returns the size() of the largest possible %string. | |
894 | size_type | |
895 | max_size() const _GLIBCXX_NOEXCEPT | |
896 | { return (_Alloc_traits::max_size(_M_get_allocator()) - 1) / 2; } | |
897 | ||
898 | /** | |
899 | * @brief Resizes the %string to the specified number of characters. | |
900 | * @param __n Number of characters the %string should contain. | |
901 | * @param __c Character to fill any new elements. | |
902 | * | |
903 | * This function will %resize the %string to the specified | |
904 | * number of characters. If the number is smaller than the | |
905 | * %string's current size the %string is truncated, otherwise | |
906 | * the %string is extended and new elements are %set to @a __c. | |
907 | */ | |
908 | void | |
909 | resize(size_type __n, _CharT __c); | |
910 | ||
911 | /** | |
912 | * @brief Resizes the %string to the specified number of characters. | |
913 | * @param __n Number of characters the %string should contain. | |
914 | * | |
915 | * This function will resize the %string to the specified length. If | |
916 | * the new size is smaller than the %string's current size the %string | |
917 | * is truncated, otherwise the %string is extended and new characters | |
918 | * are default-constructed. For basic types such as char, this means | |
919 | * setting them to 0. | |
920 | */ | |
921 | void | |
922 | resize(size_type __n) | |
923 | { this->resize(__n, _CharT()); } | |
924 | ||
925 | #if __cplusplus >= 201103L | |
926 | /// A non-binding request to reduce capacity() to size(). | |
927 | void | |
928 | shrink_to_fit() noexcept | |
929 | { | |
99f04955 | 930 | #if __cpp_exceptions |
34a2b755 JW |
931 | if (capacity() > size()) |
932 | { | |
99f04955 | 933 | try |
34a2b755 | 934 | { reserve(0); } |
99f04955 | 935 | catch(...) |
34a2b755 JW |
936 | { } |
937 | } | |
99f04955 | 938 | #endif |
34a2b755 JW |
939 | } |
940 | #endif | |
941 | ||
942 | /** | |
943 | * Returns the total number of characters that the %string can hold | |
944 | * before needing to allocate more memory. | |
945 | */ | |
946 | size_type | |
947 | capacity() const _GLIBCXX_NOEXCEPT | |
948 | { | |
949 | return _M_is_local() ? size_type(_S_local_capacity) | |
950 | : _M_allocated_capacity; | |
951 | } | |
952 | ||
953 | /** | |
954 | * @brief Attempt to preallocate enough memory for specified number of | |
955 | * characters. | |
956 | * @param __res_arg Number of characters required. | |
957 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). | |
958 | * | |
959 | * This function attempts to reserve enough memory for the | |
960 | * %string to hold the specified number of characters. If the | |
961 | * number requested is more than max_size(), length_error is | |
962 | * thrown. | |
963 | * | |
964 | * The advantage of this function is that if optimal code is a | |
965 | * necessity and the user can determine the string length that will be | |
966 | * required, the user can reserve the memory in %advance, and thus | |
967 | * prevent a possible reallocation of memory and copying of %string | |
968 | * data. | |
969 | */ | |
970 | void | |
971 | reserve(size_type __res_arg = 0); | |
972 | ||
973 | /** | |
974 | * Erases the string, making it empty. | |
975 | */ | |
976 | void | |
977 | clear() _GLIBCXX_NOEXCEPT | |
978 | { _M_set_length(0); } | |
979 | ||
980 | /** | |
981 | * Returns true if the %string is empty. Equivalent to | |
982 | * <code>*this == ""</code>. | |
983 | */ | |
984 | bool | |
985 | empty() const _GLIBCXX_NOEXCEPT | |
986 | { return this->size() == 0; } | |
987 | ||
988 | // Element access: | |
989 | /** | |
990 | * @brief Subscript access to the data contained in the %string. | |
991 | * @param __pos The index of the character to access. | |
992 | * @return Read-only (constant) reference to the character. | |
993 | * | |
994 | * This operator allows for easy, array-style, data access. | |
995 | * Note that data access with this operator is unchecked and | |
996 | * out_of_range lookups are not defined. (For checked lookups | |
997 | * see at().) | |
998 | */ | |
999 | const_reference | |
1000 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT | |
1001 | { | |
2f1e8e7c | 1002 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1003 | return _M_data()[__pos]; |
1004 | } | |
1005 | ||
1006 | /** | |
1007 | * @brief Subscript access to the data contained in the %string. | |
1008 | * @param __pos The index of the character to access. | |
1009 | * @return Read/write reference to the character. | |
1010 | * | |
1011 | * This operator allows for easy, array-style, data access. | |
1012 | * Note that data access with this operator is unchecked and | |
1013 | * out_of_range lookups are not defined. (For checked lookups | |
1014 | * see at().) | |
1015 | */ | |
1016 | reference | |
1017 | operator[](size_type __pos) | |
1018 | { | |
1019 | // Allow pos == size() both in C++98 mode, as v3 extension, | |
1020 | // and in C++11 mode. | |
2f1e8e7c | 1021 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1022 | // In pedantic mode be strict in C++98 mode. |
1023 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); | |
1024 | return _M_data()[__pos]; | |
1025 | } | |
1026 | ||
1027 | /** | |
1028 | * @brief Provides access to the data contained in the %string. | |
1029 | * @param __n The index of the character to access. | |
1030 | * @return Read-only (const) reference to the character. | |
1031 | * @throw std::out_of_range If @a n is an invalid index. | |
1032 | * | |
1033 | * This function provides for safer data access. The parameter is | |
1034 | * first checked that it is in the range of the string. The function | |
1035 | * throws out_of_range if the check fails. | |
1036 | */ | |
1037 | const_reference | |
1038 | at(size_type __n) const | |
1039 | { | |
1040 | if (__n >= this->size()) | |
1041 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1042 | "(which is %zu) >= this->size() " | |
1043 | "(which is %zu)"), | |
1044 | __n, this->size()); | |
1045 | return _M_data()[__n]; | |
1046 | } | |
1047 | ||
1048 | /** | |
1049 | * @brief Provides access to the data contained in the %string. | |
1050 | * @param __n The index of the character to access. | |
1051 | * @return Read/write reference to the character. | |
1052 | * @throw std::out_of_range If @a n is an invalid index. | |
1053 | * | |
1054 | * This function provides for safer data access. The parameter is | |
1055 | * first checked that it is in the range of the string. The function | |
1056 | * throws out_of_range if the check fails. | |
1057 | */ | |
1058 | reference | |
1059 | at(size_type __n) | |
1060 | { | |
1061 | if (__n >= size()) | |
1062 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1063 | "(which is %zu) >= this->size() " | |
1064 | "(which is %zu)"), | |
1065 | __n, this->size()); | |
1066 | return _M_data()[__n]; | |
1067 | } | |
1068 | ||
1069 | #if __cplusplus >= 201103L | |
1070 | /** | |
1071 | * Returns a read/write reference to the data at the first | |
1072 | * element of the %string. | |
1073 | */ | |
1074 | reference | |
1075 | front() noexcept | |
e25d2617 | 1076 | { |
2f1e8e7c | 1077 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1078 | return operator[](0); |
1079 | } | |
34a2b755 JW |
1080 | |
1081 | /** | |
1082 | * Returns a read-only (constant) reference to the data at the first | |
1083 | * element of the %string. | |
1084 | */ | |
1085 | const_reference | |
1086 | front() const noexcept | |
e25d2617 | 1087 | { |
2f1e8e7c | 1088 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1089 | return operator[](0); |
1090 | } | |
34a2b755 JW |
1091 | |
1092 | /** | |
1093 | * Returns a read/write reference to the data at the last | |
1094 | * element of the %string. | |
1095 | */ | |
1096 | reference | |
1097 | back() noexcept | |
e25d2617 | 1098 | { |
2f1e8e7c | 1099 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1100 | return operator[](this->size() - 1); |
1101 | } | |
34a2b755 JW |
1102 | |
1103 | /** | |
1104 | * Returns a read-only (constant) reference to the data at the | |
1105 | * last element of the %string. | |
1106 | */ | |
1107 | const_reference | |
1108 | back() const noexcept | |
e25d2617 | 1109 | { |
2f1e8e7c | 1110 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1111 | return operator[](this->size() - 1); |
1112 | } | |
34a2b755 JW |
1113 | #endif |
1114 | ||
1115 | // Modifiers: | |
1116 | /** | |
1117 | * @brief Append a string to this string. | |
1118 | * @param __str The string to append. | |
1119 | * @return Reference to this string. | |
1120 | */ | |
1121 | basic_string& | |
1122 | operator+=(const basic_string& __str) | |
1123 | { return this->append(__str); } | |
1124 | ||
1125 | /** | |
1126 | * @brief Append a C string. | |
1127 | * @param __s The C string to append. | |
1128 | * @return Reference to this string. | |
1129 | */ | |
1130 | basic_string& | |
1131 | operator+=(const _CharT* __s) | |
1132 | { return this->append(__s); } | |
1133 | ||
1134 | /** | |
1135 | * @brief Append a character. | |
1136 | * @param __c The character to append. | |
1137 | * @return Reference to this string. | |
1138 | */ | |
1139 | basic_string& | |
1140 | operator+=(_CharT __c) | |
1141 | { | |
1142 | this->push_back(__c); | |
1143 | return *this; | |
1144 | } | |
1145 | ||
1146 | #if __cplusplus >= 201103L | |
1147 | /** | |
1148 | * @brief Append an initializer_list of characters. | |
1149 | * @param __l The initializer_list of characters to be appended. | |
1150 | * @return Reference to this string. | |
1151 | */ | |
1152 | basic_string& | |
1153 | operator+=(initializer_list<_CharT> __l) | |
1154 | { return this->append(__l.begin(), __l.size()); } | |
1155 | #endif // C++11 | |
1156 | ||
ca8f2cb1 VV |
1157 | #if __cplusplus > 201402L |
1158 | /** | |
1159 | * @brief Append a string_view. | |
1160 | * @param __sv The string_view to be appended. | |
1161 | * @return Reference to this string. | |
1162 | */ | |
1163 | basic_string& | |
1164 | operator+=(__sv_type __sv) | |
1165 | { return this->append(__sv); } | |
1166 | #endif // C++17 | |
1167 | ||
34a2b755 JW |
1168 | /** |
1169 | * @brief Append a string to this string. | |
1170 | * @param __str The string to append. | |
1171 | * @return Reference to this string. | |
1172 | */ | |
1173 | basic_string& | |
1174 | append(const basic_string& __str) | |
2d60da10 | 1175 | { return _M_append(__str._M_data(), __str.size()); } |
34a2b755 JW |
1176 | |
1177 | /** | |
1178 | * @brief Append a substring. | |
1179 | * @param __str The string to append. | |
1180 | * @param __pos Index of the first character of str to append. | |
1181 | * @param __n The number of characters to append. | |
1182 | * @return Reference to this string. | |
1183 | * @throw std::out_of_range if @a __pos is not a valid index. | |
1184 | * | |
1185 | * This function appends @a __n characters from @a __str | |
1186 | * starting at @a __pos to this string. If @a __n is is larger | |
1187 | * than the number of available characters in @a __str, the | |
1188 | * remainder of @a __str is appended. | |
1189 | */ | |
1190 | basic_string& | |
1191 | append(const basic_string& __str, size_type __pos, size_type __n) | |
2d60da10 | 1192 | { return _M_append(__str._M_data() |
34a2b755 JW |
1193 | + __str._M_check(__pos, "basic_string::append"), |
1194 | __str._M_limit(__pos, __n)); } | |
1195 | ||
1196 | /** | |
1197 | * @brief Append a C substring. | |
1198 | * @param __s The C string to append. | |
1199 | * @param __n The number of characters to append. | |
1200 | * @return Reference to this string. | |
1201 | */ | |
1202 | basic_string& | |
1203 | append(const _CharT* __s, size_type __n) | |
1204 | { | |
1205 | __glibcxx_requires_string_len(__s, __n); | |
1206 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1207 | return _M_append(__s, __n); | |
1208 | } | |
1209 | ||
1210 | /** | |
1211 | * @brief Append a C string. | |
1212 | * @param __s The C string to append. | |
1213 | * @return Reference to this string. | |
1214 | */ | |
1215 | basic_string& | |
1216 | append(const _CharT* __s) | |
1217 | { | |
1218 | __glibcxx_requires_string(__s); | |
1219 | const size_type __n = traits_type::length(__s); | |
1220 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1221 | return _M_append(__s, __n); | |
1222 | } | |
1223 | ||
1224 | /** | |
1225 | * @brief Append multiple characters. | |
1226 | * @param __n The number of characters to append. | |
1227 | * @param __c The character to use. | |
1228 | * @return Reference to this string. | |
1229 | * | |
1230 | * Appends __n copies of __c to this string. | |
1231 | */ | |
1232 | basic_string& | |
1233 | append(size_type __n, _CharT __c) | |
1234 | { return _M_replace_aux(this->size(), size_type(0), __n, __c); } | |
1235 | ||
1236 | #if __cplusplus >= 201103L | |
1237 | /** | |
1238 | * @brief Append an initializer_list of characters. | |
1239 | * @param __l The initializer_list of characters to append. | |
1240 | * @return Reference to this string. | |
1241 | */ | |
1242 | basic_string& | |
1243 | append(initializer_list<_CharT> __l) | |
1244 | { return this->append(__l.begin(), __l.size()); } | |
1245 | #endif // C++11 | |
1246 | ||
1247 | /** | |
1248 | * @brief Append a range of characters. | |
1249 | * @param __first Iterator referencing the first character to append. | |
1250 | * @param __last Iterator marking the end of the range. | |
1251 | * @return Reference to this string. | |
1252 | * | |
1253 | * Appends characters in the range [__first,__last) to this string. | |
1254 | */ | |
1255 | #if __cplusplus >= 201103L | |
1256 | template<class _InputIterator, | |
1257 | typename = std::_RequireInputIter<_InputIterator>> | |
1258 | #else | |
1259 | template<class _InputIterator> | |
1260 | #endif | |
1261 | basic_string& | |
1262 | append(_InputIterator __first, _InputIterator __last) | |
1263 | { return this->replace(end(), end(), __first, __last); } | |
1264 | ||
ca8f2cb1 VV |
1265 | #if __cplusplus > 201402L |
1266 | /** | |
1267 | * @brief Append a string_view. | |
1268 | * @param __sv The string_view to be appended. | |
1269 | * @return Reference to this string. | |
1270 | */ | |
657213f7 JW |
1271 | basic_string& |
1272 | append(__sv_type __sv) | |
ca8f2cb1 VV |
1273 | { return this->append(__sv.data(), __sv.size()); } |
1274 | ||
1275 | /** | |
1276 | * @brief Append a range of characters from a string_view. | |
1277 | * @param __sv The string_view to be appended from. | |
1278 | * @param __pos The position in the string_view to append from. | |
1279 | * @param __n The number of characters to append from the string_view. | |
1280 | * @return Reference to this string. | |
1281 | */ | |
657213f7 JW |
1282 | template <typename _Tp> |
1283 | _If_sv<_Tp, basic_string&> | |
1284 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
1285 | { | |
1286 | __sv_type __sv = __svt; | |
1287 | return _M_append(__sv.data() | |
1288 | + __sv._M_check(__pos, "basic_string::append"), | |
1289 | __sv._M_limit(__pos, __n)); | |
1290 | } | |
ca8f2cb1 VV |
1291 | #endif // C++17 |
1292 | ||
34a2b755 JW |
1293 | /** |
1294 | * @brief Append a single character. | |
1295 | * @param __c Character to append. | |
1296 | */ | |
1297 | void | |
1298 | push_back(_CharT __c) | |
1299 | { | |
1300 | const size_type __size = this->size(); | |
1301 | if (__size + 1 > this->capacity()) | |
1302 | this->_M_mutate(__size, size_type(0), 0, size_type(1)); | |
1303 | traits_type::assign(this->_M_data()[__size], __c); | |
1304 | this->_M_set_length(__size + 1); | |
1305 | } | |
1306 | ||
1307 | /** | |
1308 | * @brief Set value to contents of another string. | |
1309 | * @param __str Source string to use. | |
1310 | * @return Reference to this string. | |
1311 | */ | |
1312 | basic_string& | |
1313 | assign(const basic_string& __str) | |
1314 | { | |
1315 | this->_M_assign(__str); | |
1316 | return *this; | |
1317 | } | |
1318 | ||
1319 | #if __cplusplus >= 201103L | |
1320 | /** | |
1321 | * @brief Set value to contents of another string. | |
1322 | * @param __str Source string to use. | |
1323 | * @return Reference to this string. | |
1324 | * | |
1325 | * This function sets this string to the exact contents of @a __str. | |
1326 | * @a __str is a valid, but unspecified string. | |
1327 | */ | |
1328 | basic_string& | |
1329 | assign(basic_string&& __str) | |
5caff414 | 1330 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 JW |
1331 | { |
1332 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
1333 | // 2063. Contradictory requirements for string move assignment | |
1334 | return *this = std::move(__str); | |
1335 | } | |
1336 | #endif // C++11 | |
1337 | ||
1338 | /** | |
1339 | * @brief Set value to a substring of a string. | |
1340 | * @param __str The string to use. | |
1341 | * @param __pos Index of the first character of str. | |
1342 | * @param __n Number of characters to use. | |
1343 | * @return Reference to this string. | |
1344 | * @throw std::out_of_range if @a pos is not a valid index. | |
1345 | * | |
1346 | * This function sets this string to the substring of @a __str | |
1347 | * consisting of @a __n characters at @a __pos. If @a __n is | |
1348 | * is larger than the number of available characters in @a | |
1349 | * __str, the remainder of @a __str is used. | |
1350 | */ | |
1351 | basic_string& | |
1352 | assign(const basic_string& __str, size_type __pos, size_type __n) | |
2d60da10 | 1353 | { return _M_replace(size_type(0), this->size(), __str._M_data() |
34a2b755 JW |
1354 | + __str._M_check(__pos, "basic_string::assign"), |
1355 | __str._M_limit(__pos, __n)); } | |
1356 | ||
1357 | /** | |
1358 | * @brief Set value to a C substring. | |
1359 | * @param __s The C string to use. | |
1360 | * @param __n Number of characters to use. | |
1361 | * @return Reference to this string. | |
1362 | * | |
1363 | * This function sets the value of this string to the first @a __n | |
1364 | * characters of @a __s. If @a __n is is larger than the number of | |
1365 | * available characters in @a __s, the remainder of @a __s is used. | |
1366 | */ | |
1367 | basic_string& | |
1368 | assign(const _CharT* __s, size_type __n) | |
1369 | { | |
1370 | __glibcxx_requires_string_len(__s, __n); | |
1371 | return _M_replace(size_type(0), this->size(), __s, __n); | |
1372 | } | |
1373 | ||
1374 | /** | |
1375 | * @brief Set value to contents of a C string. | |
1376 | * @param __s The C string to use. | |
1377 | * @return Reference to this string. | |
1378 | * | |
1379 | * This function sets the value of this string to the value of @a __s. | |
1380 | * The data is copied, so there is no dependence on @a __s once the | |
1381 | * function returns. | |
1382 | */ | |
1383 | basic_string& | |
1384 | assign(const _CharT* __s) | |
1385 | { | |
1386 | __glibcxx_requires_string(__s); | |
1387 | return _M_replace(size_type(0), this->size(), __s, | |
1388 | traits_type::length(__s)); | |
1389 | } | |
1390 | ||
1391 | /** | |
1392 | * @brief Set value to multiple characters. | |
1393 | * @param __n Length of the resulting string. | |
1394 | * @param __c The character to use. | |
1395 | * @return Reference to this string. | |
1396 | * | |
1397 | * This function sets the value of this string to @a __n copies of | |
1398 | * character @a __c. | |
1399 | */ | |
1400 | basic_string& | |
1401 | assign(size_type __n, _CharT __c) | |
1402 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } | |
1403 | ||
1404 | /** | |
1405 | * @brief Set value to a range of characters. | |
1406 | * @param __first Iterator referencing the first character to append. | |
1407 | * @param __last Iterator marking the end of the range. | |
1408 | * @return Reference to this string. | |
1409 | * | |
1410 | * Sets value of string to characters in the range [__first,__last). | |
1411 | */ | |
1412 | #if __cplusplus >= 201103L | |
1413 | template<class _InputIterator, | |
1414 | typename = std::_RequireInputIter<_InputIterator>> | |
1415 | #else | |
1416 | template<class _InputIterator> | |
1417 | #endif | |
1418 | basic_string& | |
1419 | assign(_InputIterator __first, _InputIterator __last) | |
1420 | { return this->replace(begin(), end(), __first, __last); } | |
1421 | ||
1422 | #if __cplusplus >= 201103L | |
1423 | /** | |
1424 | * @brief Set value to an initializer_list of characters. | |
1425 | * @param __l The initializer_list of characters to assign. | |
1426 | * @return Reference to this string. | |
1427 | */ | |
1428 | basic_string& | |
1429 | assign(initializer_list<_CharT> __l) | |
1430 | { return this->assign(__l.begin(), __l.size()); } | |
1431 | #endif // C++11 | |
1432 | ||
ca8f2cb1 VV |
1433 | #if __cplusplus > 201402L |
1434 | /** | |
1435 | * @brief Set value from a string_view. | |
1436 | * @param __sv The source string_view. | |
1437 | * @return Reference to this string. | |
1438 | */ | |
657213f7 JW |
1439 | basic_string& |
1440 | assign(__sv_type __sv) | |
ca8f2cb1 VV |
1441 | { return this->assign(__sv.data(), __sv.size()); } |
1442 | ||
1443 | /** | |
1444 | * @brief Set value from a range of characters in a string_view. | |
1445 | * @param __sv The source string_view. | |
1446 | * @param __pos The position in the string_view to assign from. | |
1447 | * @param __n The number of characters to assign. | |
1448 | * @return Reference to this string. | |
1449 | */ | |
657213f7 JW |
1450 | template <typename _Tp> |
1451 | _If_sv<_Tp, basic_string&> | |
1452 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
1453 | { | |
1454 | __sv_type __sv = __svt; | |
1455 | return _M_replace(size_type(0), this->size(), __sv.data() | |
1456 | + __sv._M_check(__pos, "basic_string::assign"), | |
1457 | __sv._M_limit(__pos, __n)); | |
1458 | } | |
ca8f2cb1 VV |
1459 | #endif // C++17 |
1460 | ||
34a2b755 JW |
1461 | #if __cplusplus >= 201103L |
1462 | /** | |
1463 | * @brief Insert multiple characters. | |
1464 | * @param __p Const_iterator referencing location in string to | |
1465 | * insert at. | |
1466 | * @param __n Number of characters to insert | |
1467 | * @param __c The character to insert. | |
1468 | * @return Iterator referencing the first inserted char. | |
1469 | * @throw std::length_error If new length exceeds @c max_size(). | |
1470 | * | |
1471 | * Inserts @a __n copies of character @a __c starting at the | |
1472 | * position referenced by iterator @a __p. If adding | |
1473 | * characters causes the length to exceed max_size(), | |
1474 | * length_error is thrown. The value of the string doesn't | |
1475 | * change if an error is thrown. | |
1476 | */ | |
1477 | iterator | |
1478 | insert(const_iterator __p, size_type __n, _CharT __c) | |
1479 | { | |
1480 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1481 | const size_type __pos = __p - begin(); | |
1482 | this->replace(__p, __p, __n, __c); | |
1483 | return iterator(this->_M_data() + __pos); | |
1484 | } | |
1485 | #else | |
1486 | /** | |
1487 | * @brief Insert multiple characters. | |
1488 | * @param __p Iterator referencing location in string to insert at. | |
1489 | * @param __n Number of characters to insert | |
1490 | * @param __c The character to insert. | |
1491 | * @throw std::length_error If new length exceeds @c max_size(). | |
1492 | * | |
1493 | * Inserts @a __n copies of character @a __c starting at the | |
1494 | * position referenced by iterator @a __p. If adding | |
1495 | * characters causes the length to exceed max_size(), | |
1496 | * length_error is thrown. The value of the string doesn't | |
1497 | * change if an error is thrown. | |
1498 | */ | |
1499 | void | |
1500 | insert(iterator __p, size_type __n, _CharT __c) | |
1501 | { this->replace(__p, __p, __n, __c); } | |
1502 | #endif | |
1503 | ||
1504 | #if __cplusplus >= 201103L | |
1505 | /** | |
1506 | * @brief Insert a range of characters. | |
1507 | * @param __p Const_iterator referencing location in string to | |
1508 | * insert at. | |
1509 | * @param __beg Start of range. | |
1510 | * @param __end End of range. | |
1511 | * @return Iterator referencing the first inserted char. | |
1512 | * @throw std::length_error If new length exceeds @c max_size(). | |
1513 | * | |
1514 | * Inserts characters in range [beg,end). If adding characters | |
1515 | * causes the length to exceed max_size(), length_error is | |
1516 | * thrown. The value of the string doesn't change if an error | |
1517 | * is thrown. | |
1518 | */ | |
1519 | template<class _InputIterator, | |
1520 | typename = std::_RequireInputIter<_InputIterator>> | |
1521 | iterator | |
1522 | insert(const_iterator __p, _InputIterator __beg, _InputIterator __end) | |
1523 | { | |
1524 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1525 | const size_type __pos = __p - begin(); | |
1526 | this->replace(__p, __p, __beg, __end); | |
1527 | return iterator(this->_M_data() + __pos); | |
1528 | } | |
1529 | #else | |
1530 | /** | |
1531 | * @brief Insert a range of characters. | |
1532 | * @param __p Iterator referencing location in string to insert at. | |
1533 | * @param __beg Start of range. | |
1534 | * @param __end End of range. | |
1535 | * @throw std::length_error If new length exceeds @c max_size(). | |
1536 | * | |
1537 | * Inserts characters in range [__beg,__end). If adding | |
1538 | * characters causes the length to exceed max_size(), | |
1539 | * length_error is thrown. The value of the string doesn't | |
1540 | * change if an error is thrown. | |
1541 | */ | |
1542 | template<class _InputIterator> | |
1543 | void | |
1544 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) | |
1545 | { this->replace(__p, __p, __beg, __end); } | |
1546 | #endif | |
1547 | ||
1548 | #if __cplusplus >= 201103L | |
1549 | /** | |
1550 | * @brief Insert an initializer_list of characters. | |
1551 | * @param __p Iterator referencing location in string to insert at. | |
1552 | * @param __l The initializer_list of characters to insert. | |
1553 | * @throw std::length_error If new length exceeds @c max_size(). | |
1554 | */ | |
1555 | void | |
1556 | insert(iterator __p, initializer_list<_CharT> __l) | |
1557 | { | |
1558 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1559 | this->insert(__p - begin(), __l.begin(), __l.size()); | |
1560 | } | |
1561 | #endif // C++11 | |
1562 | ||
1563 | /** | |
1564 | * @brief Insert value of a string. | |
1565 | * @param __pos1 Iterator referencing location in string to insert at. | |
1566 | * @param __str The string to insert. | |
1567 | * @return Reference to this string. | |
1568 | * @throw std::length_error If new length exceeds @c max_size(). | |
1569 | * | |
1570 | * Inserts value of @a __str starting at @a __pos1. If adding | |
1571 | * characters causes the length to exceed max_size(), | |
1572 | * length_error is thrown. The value of the string doesn't | |
1573 | * change if an error is thrown. | |
1574 | */ | |
1575 | basic_string& | |
1576 | insert(size_type __pos1, const basic_string& __str) | |
1577 | { return this->replace(__pos1, size_type(0), | |
2d60da10 | 1578 | __str._M_data(), __str.size()); } |
34a2b755 JW |
1579 | |
1580 | /** | |
1581 | * @brief Insert a substring. | |
1582 | * @param __pos1 Iterator referencing location in string to insert at. | |
1583 | * @param __str The string to insert. | |
1584 | * @param __pos2 Start of characters in str to insert. | |
1585 | * @param __n Number of characters to insert. | |
1586 | * @return Reference to this string. | |
1587 | * @throw std::length_error If new length exceeds @c max_size(). | |
1588 | * @throw std::out_of_range If @a pos1 > size() or | |
1589 | * @a __pos2 > @a str.size(). | |
1590 | * | |
1591 | * Starting at @a pos1, insert @a __n character of @a __str | |
1592 | * beginning with @a __pos2. If adding characters causes the | |
1593 | * length to exceed max_size(), length_error is thrown. If @a | |
1594 | * __pos1 is beyond the end of this string or @a __pos2 is | |
1595 | * beyond the end of @a __str, out_of_range is thrown. The | |
1596 | * value of the string doesn't change if an error is thrown. | |
1597 | */ | |
1598 | basic_string& | |
1599 | insert(size_type __pos1, const basic_string& __str, | |
1600 | size_type __pos2, size_type __n) | |
2d60da10 | 1601 | { return this->replace(__pos1, size_type(0), __str._M_data() |
34a2b755 JW |
1602 | + __str._M_check(__pos2, "basic_string::insert"), |
1603 | __str._M_limit(__pos2, __n)); } | |
1604 | ||
1605 | /** | |
1606 | * @brief Insert a C substring. | |
1607 | * @param __pos Iterator referencing location in string to insert at. | |
1608 | * @param __s The C string to insert. | |
1609 | * @param __n The number of characters to insert. | |
1610 | * @return Reference to this string. | |
1611 | * @throw std::length_error If new length exceeds @c max_size(). | |
1612 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1613 | * string. | |
1614 | * | |
1615 | * Inserts the first @a __n characters of @a __s starting at @a | |
1616 | * __pos. If adding characters causes the length to exceed | |
1617 | * max_size(), length_error is thrown. If @a __pos is beyond | |
1618 | * end(), out_of_range is thrown. The value of the string | |
1619 | * doesn't change if an error is thrown. | |
1620 | */ | |
1621 | basic_string& | |
1622 | insert(size_type __pos, const _CharT* __s, size_type __n) | |
1623 | { return this->replace(__pos, size_type(0), __s, __n); } | |
1624 | ||
1625 | /** | |
1626 | * @brief Insert a C string. | |
1627 | * @param __pos Iterator referencing location in string to insert at. | |
1628 | * @param __s The C string to insert. | |
1629 | * @return Reference to this string. | |
1630 | * @throw std::length_error If new length exceeds @c max_size(). | |
1631 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1632 | * string. | |
1633 | * | |
1634 | * Inserts the first @a n characters of @a __s starting at @a __pos. If | |
1635 | * adding characters causes the length to exceed max_size(), | |
1636 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is | |
1637 | * thrown. The value of the string doesn't change if an error is | |
1638 | * thrown. | |
1639 | */ | |
1640 | basic_string& | |
1641 | insert(size_type __pos, const _CharT* __s) | |
1642 | { | |
1643 | __glibcxx_requires_string(__s); | |
1644 | return this->replace(__pos, size_type(0), __s, | |
1645 | traits_type::length(__s)); | |
1646 | } | |
1647 | ||
1648 | /** | |
1649 | * @brief Insert multiple characters. | |
1650 | * @param __pos Index in string to insert at. | |
1651 | * @param __n Number of characters to insert | |
1652 | * @param __c The character to insert. | |
1653 | * @return Reference to this string. | |
1654 | * @throw std::length_error If new length exceeds @c max_size(). | |
1655 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1656 | * string. | |
1657 | * | |
1658 | * Inserts @a __n copies of character @a __c starting at index | |
1659 | * @a __pos. If adding characters causes the length to exceed | |
1660 | * max_size(), length_error is thrown. If @a __pos > length(), | |
1661 | * out_of_range is thrown. The value of the string doesn't | |
1662 | * change if an error is thrown. | |
1663 | */ | |
1664 | basic_string& | |
1665 | insert(size_type __pos, size_type __n, _CharT __c) | |
1666 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), | |
1667 | size_type(0), __n, __c); } | |
1668 | ||
1669 | /** | |
1670 | * @brief Insert one character. | |
1671 | * @param __p Iterator referencing position in string to insert at. | |
1672 | * @param __c The character to insert. | |
1673 | * @return Iterator referencing newly inserted char. | |
1674 | * @throw std::length_error If new length exceeds @c max_size(). | |
1675 | * | |
1676 | * Inserts character @a __c at position referenced by @a __p. | |
1677 | * If adding character causes the length to exceed max_size(), | |
1678 | * length_error is thrown. If @a __p is beyond end of string, | |
1679 | * out_of_range is thrown. The value of the string doesn't | |
1680 | * change if an error is thrown. | |
1681 | */ | |
1682 | iterator | |
1683 | insert(__const_iterator __p, _CharT __c) | |
1684 | { | |
1685 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1686 | const size_type __pos = __p - begin(); | |
1687 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); | |
1688 | return iterator(_M_data() + __pos); | |
1689 | } | |
1690 | ||
ca8f2cb1 VV |
1691 | #if __cplusplus > 201402L |
1692 | /** | |
1693 | * @brief Insert a string_view. | |
1694 | * @param __pos Iterator referencing position in string to insert at. | |
1695 | * @param __sv The string_view to insert. | |
1696 | * @return Reference to this string. | |
1697 | */ | |
657213f7 JW |
1698 | basic_string& |
1699 | insert(size_type __pos, __sv_type __sv) | |
ca8f2cb1 VV |
1700 | { return this->insert(__pos, __sv.data(), __sv.size()); } |
1701 | ||
1702 | /** | |
1703 | * @brief Insert a string_view. | |
1704 | * @param __pos Iterator referencing position in string to insert at. | |
1705 | * @param __sv The string_view to insert from. | |
1706 | * @param __pos Iterator referencing position in string_view to insert | |
1707 | * from. | |
1708 | * @param __n The number of characters to insert. | |
1709 | * @return Reference to this string. | |
1710 | */ | |
657213f7 JW |
1711 | template <typename _Tp> |
1712 | _If_sv<_Tp, basic_string&> | |
1713 | insert(size_type __pos1, const _Tp& __svt, | |
1714 | size_type __pos2, size_type __n = npos) | |
1715 | { | |
1716 | __sv_type __sv = __svt; | |
1717 | return this->replace(__pos1, size_type(0), __sv.data() | |
1718 | + __sv._M_check(__pos2, "basic_string::insert"), | |
1719 | __sv._M_limit(__pos2, __n)); | |
1720 | } | |
ca8f2cb1 VV |
1721 | #endif // C++17 |
1722 | ||
34a2b755 JW |
1723 | /** |
1724 | * @brief Remove characters. | |
1725 | * @param __pos Index of first character to remove (default 0). | |
1726 | * @param __n Number of characters to remove (default remainder). | |
1727 | * @return Reference to this string. | |
1728 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1729 | * string. | |
1730 | * | |
1731 | * Removes @a __n characters from this string starting at @a | |
1732 | * __pos. The length of the string is reduced by @a __n. If | |
1733 | * there are < @a __n characters to remove, the remainder of | |
1734 | * the string is truncated. If @a __p is beyond end of string, | |
1735 | * out_of_range is thrown. The value of the string doesn't | |
1736 | * change if an error is thrown. | |
1737 | */ | |
1738 | basic_string& | |
1739 | erase(size_type __pos = 0, size_type __n = npos) | |
1740 | { | |
a922c5ff JW |
1741 | _M_check(__pos, "basic_string::erase"); |
1742 | if (__n == npos) | |
1743 | this->_M_set_length(__pos); | |
1744 | else if (__n != 0) | |
1745 | this->_M_erase(__pos, _M_limit(__pos, __n)); | |
34a2b755 JW |
1746 | return *this; |
1747 | } | |
1748 | ||
1749 | /** | |
1750 | * @brief Remove one character. | |
1751 | * @param __position Iterator referencing the character to remove. | |
1752 | * @return iterator referencing same location after removal. | |
1753 | * | |
1754 | * Removes the character at @a __position from this string. The value | |
1755 | * of the string doesn't change if an error is thrown. | |
1756 | */ | |
1757 | iterator | |
1758 | erase(__const_iterator __position) | |
1759 | { | |
1760 | _GLIBCXX_DEBUG_PEDASSERT(__position >= begin() | |
1761 | && __position < end()); | |
1762 | const size_type __pos = __position - begin(); | |
1763 | this->_M_erase(__pos, size_type(1)); | |
1764 | return iterator(_M_data() + __pos); | |
1765 | } | |
1766 | ||
1767 | /** | |
1768 | * @brief Remove a range of characters. | |
1769 | * @param __first Iterator referencing the first character to remove. | |
1770 | * @param __last Iterator referencing the end of the range. | |
1771 | * @return Iterator referencing location of first after removal. | |
1772 | * | |
1773 | * Removes the characters in the range [first,last) from this string. | |
1774 | * The value of the string doesn't change if an error is thrown. | |
1775 | */ | |
1776 | iterator | |
1777 | erase(__const_iterator __first, __const_iterator __last) | |
1778 | { | |
1779 | _GLIBCXX_DEBUG_PEDASSERT(__first >= begin() && __first <= __last | |
1780 | && __last <= end()); | |
1781 | const size_type __pos = __first - begin(); | |
a922c5ff JW |
1782 | if (__last == end()) |
1783 | this->_M_set_length(__pos); | |
1784 | else | |
1785 | this->_M_erase(__pos, __last - __first); | |
34a2b755 JW |
1786 | return iterator(this->_M_data() + __pos); |
1787 | } | |
1788 | ||
1789 | #if __cplusplus >= 201103L | |
1790 | /** | |
1791 | * @brief Remove the last character. | |
1792 | * | |
1793 | * The string must be non-empty. | |
1794 | */ | |
1795 | void | |
1796 | pop_back() noexcept | |
e25d2617 | 1797 | { |
2f1e8e7c | 1798 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1799 | _M_erase(size() - 1, 1); |
1800 | } | |
34a2b755 JW |
1801 | #endif // C++11 |
1802 | ||
1803 | /** | |
1804 | * @brief Replace characters with value from another string. | |
1805 | * @param __pos Index of first character to replace. | |
1806 | * @param __n Number of characters to be replaced. | |
1807 | * @param __str String to insert. | |
1808 | * @return Reference to this string. | |
1809 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1810 | * string. | |
1811 | * @throw std::length_error If new length exceeds @c max_size(). | |
1812 | * | |
1813 | * Removes the characters in the range [__pos,__pos+__n) from | |
1814 | * this string. In place, the value of @a __str is inserted. | |
1815 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
1816 | * If the length of the result exceeds max_size(), length_error | |
1817 | * is thrown. The value of the string doesn't change if an | |
1818 | * error is thrown. | |
1819 | */ | |
1820 | basic_string& | |
1821 | replace(size_type __pos, size_type __n, const basic_string& __str) | |
2d60da10 | 1822 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
34a2b755 JW |
1823 | |
1824 | /** | |
1825 | * @brief Replace characters with value from another string. | |
1826 | * @param __pos1 Index of first character to replace. | |
1827 | * @param __n1 Number of characters to be replaced. | |
1828 | * @param __str String to insert. | |
1829 | * @param __pos2 Index of first character of str to use. | |
1830 | * @param __n2 Number of characters from str to use. | |
1831 | * @return Reference to this string. | |
1832 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > | |
1833 | * __str.size(). | |
1834 | * @throw std::length_error If new length exceeds @c max_size(). | |
1835 | * | |
1836 | * Removes the characters in the range [__pos1,__pos1 + n) from this | |
1837 | * string. In place, the value of @a __str is inserted. If @a __pos is | |
1838 | * beyond end of string, out_of_range is thrown. If the length of the | |
1839 | * result exceeds max_size(), length_error is thrown. The value of the | |
1840 | * string doesn't change if an error is thrown. | |
1841 | */ | |
1842 | basic_string& | |
1843 | replace(size_type __pos1, size_type __n1, const basic_string& __str, | |
1844 | size_type __pos2, size_type __n2) | |
2d60da10 | 1845 | { return this->replace(__pos1, __n1, __str._M_data() |
34a2b755 JW |
1846 | + __str._M_check(__pos2, "basic_string::replace"), |
1847 | __str._M_limit(__pos2, __n2)); } | |
1848 | ||
1849 | /** | |
1850 | * @brief Replace characters with value of a C substring. | |
1851 | * @param __pos Index of first character to replace. | |
1852 | * @param __n1 Number of characters to be replaced. | |
1853 | * @param __s C string to insert. | |
1854 | * @param __n2 Number of characters from @a s to use. | |
1855 | * @return Reference to this string. | |
1856 | * @throw std::out_of_range If @a pos1 > size(). | |
1857 | * @throw std::length_error If new length exceeds @c max_size(). | |
1858 | * | |
1859 | * Removes the characters in the range [__pos,__pos + __n1) | |
1860 | * from this string. In place, the first @a __n2 characters of | |
1861 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If | |
1862 | * @a __pos is beyond end of string, out_of_range is thrown. If | |
1863 | * the length of result exceeds max_size(), length_error is | |
1864 | * thrown. The value of the string doesn't change if an error | |
1865 | * is thrown. | |
1866 | */ | |
1867 | basic_string& | |
1868 | replace(size_type __pos, size_type __n1, const _CharT* __s, | |
1869 | size_type __n2) | |
1870 | { | |
1871 | __glibcxx_requires_string_len(__s, __n2); | |
1872 | return _M_replace(_M_check(__pos, "basic_string::replace"), | |
1873 | _M_limit(__pos, __n1), __s, __n2); | |
1874 | } | |
1875 | ||
1876 | /** | |
1877 | * @brief Replace characters with value of a C string. | |
1878 | * @param __pos Index of first character to replace. | |
1879 | * @param __n1 Number of characters to be replaced. | |
1880 | * @param __s C string to insert. | |
1881 | * @return Reference to this string. | |
1882 | * @throw std::out_of_range If @a pos > size(). | |
1883 | * @throw std::length_error If new length exceeds @c max_size(). | |
1884 | * | |
1885 | * Removes the characters in the range [__pos,__pos + __n1) | |
1886 | * from this string. In place, the characters of @a __s are | |
1887 | * inserted. If @a __pos is beyond end of string, out_of_range | |
1888 | * is thrown. If the length of result exceeds max_size(), | |
1889 | * length_error is thrown. The value of the string doesn't | |
1890 | * change if an error is thrown. | |
1891 | */ | |
1892 | basic_string& | |
1893 | replace(size_type __pos, size_type __n1, const _CharT* __s) | |
1894 | { | |
1895 | __glibcxx_requires_string(__s); | |
1896 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); | |
1897 | } | |
1898 | ||
1899 | /** | |
1900 | * @brief Replace characters with multiple characters. | |
1901 | * @param __pos Index of first character to replace. | |
1902 | * @param __n1 Number of characters to be replaced. | |
1903 | * @param __n2 Number of characters to insert. | |
1904 | * @param __c Character to insert. | |
1905 | * @return Reference to this string. | |
1906 | * @throw std::out_of_range If @a __pos > size(). | |
1907 | * @throw std::length_error If new length exceeds @c max_size(). | |
1908 | * | |
1909 | * Removes the characters in the range [pos,pos + n1) from this | |
1910 | * string. In place, @a __n2 copies of @a __c are inserted. | |
1911 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
1912 | * If the length of result exceeds max_size(), length_error is | |
1913 | * thrown. The value of the string doesn't change if an error | |
1914 | * is thrown. | |
1915 | */ | |
1916 | basic_string& | |
1917 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) | |
1918 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), | |
1919 | _M_limit(__pos, __n1), __n2, __c); } | |
1920 | ||
1921 | /** | |
1922 | * @brief Replace range of characters with string. | |
1923 | * @param __i1 Iterator referencing start of range to replace. | |
1924 | * @param __i2 Iterator referencing end of range to replace. | |
1925 | * @param __str String value to insert. | |
1926 | * @return Reference to this string. | |
1927 | * @throw std::length_error If new length exceeds @c max_size(). | |
1928 | * | |
1929 | * Removes the characters in the range [__i1,__i2). In place, | |
1930 | * the value of @a __str is inserted. If the length of result | |
1931 | * exceeds max_size(), length_error is thrown. The value of | |
1932 | * the string doesn't change if an error is thrown. | |
1933 | */ | |
1934 | basic_string& | |
1935 | replace(__const_iterator __i1, __const_iterator __i2, | |
1936 | const basic_string& __str) | |
2d60da10 | 1937 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
34a2b755 JW |
1938 | |
1939 | /** | |
1940 | * @brief Replace range of characters with C substring. | |
1941 | * @param __i1 Iterator referencing start of range to replace. | |
1942 | * @param __i2 Iterator referencing end of range to replace. | |
1943 | * @param __s C string value to insert. | |
1944 | * @param __n Number of characters from s to insert. | |
1945 | * @return Reference to this string. | |
1946 | * @throw std::length_error If new length exceeds @c max_size(). | |
1947 | * | |
1948 | * Removes the characters in the range [__i1,__i2). In place, | |
1949 | * the first @a __n characters of @a __s are inserted. If the | |
1950 | * length of result exceeds max_size(), length_error is thrown. | |
1951 | * The value of the string doesn't change if an error is | |
1952 | * thrown. | |
1953 | */ | |
1954 | basic_string& | |
1955 | replace(__const_iterator __i1, __const_iterator __i2, | |
1956 | const _CharT* __s, size_type __n) | |
1957 | { | |
1958 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
1959 | && __i2 <= end()); | |
1960 | return this->replace(__i1 - begin(), __i2 - __i1, __s, __n); | |
1961 | } | |
1962 | ||
1963 | /** | |
1964 | * @brief Replace range of characters with C string. | |
1965 | * @param __i1 Iterator referencing start of range to replace. | |
1966 | * @param __i2 Iterator referencing end of range to replace. | |
1967 | * @param __s C string value to insert. | |
1968 | * @return Reference to this string. | |
1969 | * @throw std::length_error If new length exceeds @c max_size(). | |
1970 | * | |
1971 | * Removes the characters in the range [__i1,__i2). In place, | |
1972 | * the characters of @a __s are inserted. If the length of | |
1973 | * result exceeds max_size(), length_error is thrown. The | |
1974 | * value of the string doesn't change if an error is thrown. | |
1975 | */ | |
1976 | basic_string& | |
1977 | replace(__const_iterator __i1, __const_iterator __i2, const _CharT* __s) | |
1978 | { | |
1979 | __glibcxx_requires_string(__s); | |
1980 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); | |
1981 | } | |
1982 | ||
1983 | /** | |
1984 | * @brief Replace range of characters with multiple characters | |
1985 | * @param __i1 Iterator referencing start of range to replace. | |
1986 | * @param __i2 Iterator referencing end of range to replace. | |
1987 | * @param __n Number of characters to insert. | |
1988 | * @param __c Character to insert. | |
1989 | * @return Reference to this string. | |
1990 | * @throw std::length_error If new length exceeds @c max_size(). | |
1991 | * | |
1992 | * Removes the characters in the range [__i1,__i2). In place, | |
1993 | * @a __n copies of @a __c are inserted. If the length of | |
1994 | * result exceeds max_size(), length_error is thrown. The | |
1995 | * value of the string doesn't change if an error is thrown. | |
1996 | */ | |
1997 | basic_string& | |
1998 | replace(__const_iterator __i1, __const_iterator __i2, size_type __n, | |
1999 | _CharT __c) | |
2000 | { | |
2001 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2002 | && __i2 <= end()); | |
2003 | return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __c); | |
2004 | } | |
2005 | ||
2006 | /** | |
2007 | * @brief Replace range of characters with range. | |
2008 | * @param __i1 Iterator referencing start of range to replace. | |
2009 | * @param __i2 Iterator referencing end of range to replace. | |
2010 | * @param __k1 Iterator referencing start of range to insert. | |
2011 | * @param __k2 Iterator referencing end of range to insert. | |
2012 | * @return Reference to this string. | |
2013 | * @throw std::length_error If new length exceeds @c max_size(). | |
2014 | * | |
2015 | * Removes the characters in the range [__i1,__i2). In place, | |
2016 | * characters in the range [__k1,__k2) are inserted. If the | |
2017 | * length of result exceeds max_size(), length_error is thrown. | |
2018 | * The value of the string doesn't change if an error is | |
2019 | * thrown. | |
2020 | */ | |
2021 | #if __cplusplus >= 201103L | |
2022 | template<class _InputIterator, | |
2023 | typename = std::_RequireInputIter<_InputIterator>> | |
2024 | basic_string& | |
2025 | replace(const_iterator __i1, const_iterator __i2, | |
2026 | _InputIterator __k1, _InputIterator __k2) | |
2027 | { | |
2028 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2029 | && __i2 <= end()); | |
2030 | __glibcxx_requires_valid_range(__k1, __k2); | |
2031 | return this->_M_replace_dispatch(__i1, __i2, __k1, __k2, | |
2032 | std::__false_type()); | |
2033 | } | |
2034 | #else | |
2035 | template<class _InputIterator> | |
2036 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
2037 | typename __enable_if_not_native_iterator<_InputIterator>::__type | |
2038 | #else | |
2039 | basic_string& | |
2040 | #endif | |
2041 | replace(iterator __i1, iterator __i2, | |
2042 | _InputIterator __k1, _InputIterator __k2) | |
2043 | { | |
2044 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2045 | && __i2 <= end()); | |
2046 | __glibcxx_requires_valid_range(__k1, __k2); | |
2047 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; | |
2048 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); | |
2049 | } | |
2050 | #endif | |
2051 | ||
2052 | // Specializations for the common case of pointer and iterator: | |
2053 | // useful to avoid the overhead of temporary buffering in _M_replace. | |
2054 | basic_string& | |
2055 | replace(__const_iterator __i1, __const_iterator __i2, | |
2056 | _CharT* __k1, _CharT* __k2) | |
2057 | { | |
2058 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2059 | && __i2 <= end()); | |
2060 | __glibcxx_requires_valid_range(__k1, __k2); | |
2061 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2062 | __k1, __k2 - __k1); | |
2063 | } | |
2064 | ||
2065 | basic_string& | |
2066 | replace(__const_iterator __i1, __const_iterator __i2, | |
2067 | const _CharT* __k1, const _CharT* __k2) | |
2068 | { | |
2069 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2070 | && __i2 <= end()); | |
2071 | __glibcxx_requires_valid_range(__k1, __k2); | |
2072 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2073 | __k1, __k2 - __k1); | |
2074 | } | |
2075 | ||
2076 | basic_string& | |
2077 | replace(__const_iterator __i1, __const_iterator __i2, | |
2078 | iterator __k1, iterator __k2) | |
2079 | { | |
2080 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2081 | && __i2 <= end()); | |
2082 | __glibcxx_requires_valid_range(__k1, __k2); | |
2083 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2084 | __k1.base(), __k2 - __k1); | |
2085 | } | |
2086 | ||
2087 | basic_string& | |
2088 | replace(__const_iterator __i1, __const_iterator __i2, | |
2089 | const_iterator __k1, const_iterator __k2) | |
2090 | { | |
2091 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2092 | && __i2 <= end()); | |
2093 | __glibcxx_requires_valid_range(__k1, __k2); | |
2094 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2095 | __k1.base(), __k2 - __k1); | |
2096 | } | |
2097 | ||
2098 | #if __cplusplus >= 201103L | |
2099 | /** | |
2100 | * @brief Replace range of characters with initializer_list. | |
2101 | * @param __i1 Iterator referencing start of range to replace. | |
2102 | * @param __i2 Iterator referencing end of range to replace. | |
2103 | * @param __l The initializer_list of characters to insert. | |
2104 | * @return Reference to this string. | |
2105 | * @throw std::length_error If new length exceeds @c max_size(). | |
2106 | * | |
2107 | * Removes the characters in the range [__i1,__i2). In place, | |
2108 | * characters in the range [__k1,__k2) are inserted. If the | |
2109 | * length of result exceeds max_size(), length_error is thrown. | |
2110 | * The value of the string doesn't change if an error is | |
2111 | * thrown. | |
2112 | */ | |
2113 | basic_string& replace(const_iterator __i1, const_iterator __i2, | |
2114 | initializer_list<_CharT> __l) | |
17f8dc93 | 2115 | { return this->replace(__i1, __i2, __l.begin(), __l.size()); } |
34a2b755 JW |
2116 | #endif // C++11 |
2117 | ||
ca8f2cb1 VV |
2118 | #if __cplusplus > 201402L |
2119 | /** | |
2120 | * @brief Replace range of characters with string_view. | |
2121 | * @param __pos The position to replace at. | |
2122 | * @param __n The number of characters to replace. | |
2123 | * @param __sv The string_view to insert. | |
2124 | * @return Reference to this string. | |
2125 | */ | |
657213f7 JW |
2126 | basic_string& |
2127 | replace(size_type __pos, size_type __n, __sv_type __sv) | |
ca8f2cb1 VV |
2128 | { return this->replace(__pos, __n, __sv.data(), __sv.size()); } |
2129 | ||
2130 | /** | |
2131 | * @brief Replace range of characters with string_view. | |
2132 | * @param __pos1 The position to replace at. | |
2133 | * @param __n1 The number of characters to replace. | |
2134 | * @param __sv The string_view to insert from. | |
2135 | * @param __pos2 The position in the string_view to insert from. | |
2136 | * @param __n2 The number of characters to insert. | |
2137 | * @return Reference to this string. | |
2138 | */ | |
657213f7 JW |
2139 | template <typename _Tp> |
2140 | _If_sv<_Tp, basic_string&> | |
2141 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, | |
2142 | size_type __pos2, size_type __n2 = npos) | |
2143 | { | |
2144 | __sv_type __sv = __svt; | |
2145 | return this->replace(__pos1, __n1, __sv.data() | |
2146 | + __sv._M_check(__pos2, "basic_string::replace"), | |
2147 | __sv._M_limit(__pos2, __n2)); | |
2148 | } | |
ca8f2cb1 VV |
2149 | |
2150 | /** | |
2151 | * @brief Replace range of characters with string_view. | |
2152 | * @param __i1 An iterator referencing the start position | |
2153 | to replace at. | |
2154 | * @param __i2 An iterator referencing the end position | |
2155 | for the replace. | |
2156 | * @param __sv The string_view to insert from. | |
2157 | * @return Reference to this string. | |
2158 | */ | |
657213f7 JW |
2159 | basic_string& |
2160 | replace(const_iterator __i1, const_iterator __i2, __sv_type __sv) | |
ca8f2cb1 VV |
2161 | { return this->replace(__i1 - begin(), __i2 - __i1, __sv); } |
2162 | #endif // C++17 | |
2163 | ||
34a2b755 JW |
2164 | private: |
2165 | template<class _Integer> | |
2166 | basic_string& | |
2167 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2168 | _Integer __n, _Integer __val, __true_type) | |
2169 | { return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __val); } | |
2170 | ||
2171 | template<class _InputIterator> | |
2172 | basic_string& | |
2173 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2174 | _InputIterator __k1, _InputIterator __k2, | |
2175 | __false_type); | |
2176 | ||
2177 | basic_string& | |
2178 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, | |
2179 | _CharT __c); | |
2180 | ||
2181 | basic_string& | |
2182 | _M_replace(size_type __pos, size_type __len1, const _CharT* __s, | |
2183 | const size_type __len2); | |
2184 | ||
2185 | basic_string& | |
2186 | _M_append(const _CharT* __s, size_type __n); | |
2187 | ||
2188 | public: | |
2189 | ||
2190 | /** | |
2191 | * @brief Copy substring into C string. | |
2192 | * @param __s C string to copy value into. | |
2193 | * @param __n Number of characters to copy. | |
2194 | * @param __pos Index of first character to copy. | |
2195 | * @return Number of characters actually copied | |
2196 | * @throw std::out_of_range If __pos > size(). | |
2197 | * | |
2198 | * Copies up to @a __n characters starting at @a __pos into the | |
2199 | * C string @a __s. If @a __pos is %greater than size(), | |
2200 | * out_of_range is thrown. | |
2201 | */ | |
2202 | size_type | |
2203 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; | |
2204 | ||
2205 | /** | |
2206 | * @brief Swap contents with another string. | |
2207 | * @param __s String to swap with. | |
2208 | * | |
2209 | * Exchanges the contents of this string with that of @a __s in constant | |
2210 | * time. | |
2211 | */ | |
2212 | void | |
2213 | swap(basic_string& __s) _GLIBCXX_NOEXCEPT; | |
2214 | ||
2215 | // String operations: | |
2216 | /** | |
2217 | * @brief Return const pointer to null-terminated contents. | |
2218 | * | |
2219 | * This is a handle to internal data. Do not modify or dire things may | |
2220 | * happen. | |
2221 | */ | |
2222 | const _CharT* | |
2223 | c_str() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2224 | { return _M_data(); } |
34a2b755 JW |
2225 | |
2226 | /** | |
2227 | * @brief Return const pointer to contents. | |
2228 | * | |
92d58dee JW |
2229 | * This is a pointer to internal data. It is undefined to modify |
2230 | * the contents through the returned pointer. To get a pointer that | |
2231 | * allows modifying the contents use @c &str[0] instead, | |
2232 | * (or in C++17 the non-const @c str.data() overload). | |
34a2b755 JW |
2233 | */ |
2234 | const _CharT* | |
2235 | data() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2236 | { return _M_data(); } |
34a2b755 | 2237 | |
92d58dee JW |
2238 | #if __cplusplus > 201402L |
2239 | /** | |
2240 | * @brief Return non-const pointer to contents. | |
2241 | * | |
2242 | * This is a pointer to the character sequence held by the string. | |
2243 | * Modifying the characters in the sequence is allowed. | |
2244 | */ | |
2245 | _CharT* | |
2246 | data() noexcept | |
2247 | { return _M_data(); } | |
2248 | #endif | |
2249 | ||
34a2b755 JW |
2250 | /** |
2251 | * @brief Return copy of allocator used to construct this string. | |
2252 | */ | |
2253 | allocator_type | |
2254 | get_allocator() const _GLIBCXX_NOEXCEPT | |
2255 | { return _M_get_allocator(); } | |
2256 | ||
2257 | /** | |
2258 | * @brief Find position of a C substring. | |
2259 | * @param __s C string to locate. | |
2260 | * @param __pos Index of character to search from. | |
2261 | * @param __n Number of characters from @a s to search for. | |
2262 | * @return Index of start of first occurrence. | |
2263 | * | |
2264 | * Starting from @a __pos, searches forward for the first @a | |
2265 | * __n characters in @a __s within this string. If found, | |
2266 | * returns the index where it begins. If not found, returns | |
2267 | * npos. | |
2268 | */ | |
2269 | size_type | |
39a03251 JW |
2270 | find(const _CharT* __s, size_type __pos, size_type __n) const |
2271 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2272 | |
2273 | /** | |
2274 | * @brief Find position of a string. | |
2275 | * @param __str String to locate. | |
2276 | * @param __pos Index of character to search from (default 0). | |
2277 | * @return Index of start of first occurrence. | |
2278 | * | |
2279 | * Starting from @a __pos, searches forward for value of @a __str within | |
2280 | * this string. If found, returns the index where it begins. If not | |
2281 | * found, returns npos. | |
2282 | */ | |
2283 | size_type | |
2284 | find(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2285 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2286 | { return this->find(__str.data(), __pos, __str.size()); } |
2287 | ||
ca8f2cb1 VV |
2288 | #if __cplusplus > 201402L |
2289 | /** | |
2290 | * @brief Find position of a string_view. | |
2291 | * @param __sv The string_view to locate. | |
2292 | * @param __pos Index of character to search from (default 0). | |
2293 | * @return Index of start of first occurrence. | |
2294 | */ | |
2295 | size_type | |
657213f7 | 2296 | find(__sv_type __sv, size_type __pos = 0) const noexcept |
ca8f2cb1 VV |
2297 | { return this->find(__sv.data(), __pos, __sv.size()); } |
2298 | #endif // C++17 | |
2299 | ||
34a2b755 JW |
2300 | /** |
2301 | * @brief Find position of a C string. | |
2302 | * @param __s C string to locate. | |
2303 | * @param __pos Index of character to search from (default 0). | |
2304 | * @return Index of start of first occurrence. | |
2305 | * | |
2306 | * Starting from @a __pos, searches forward for the value of @a | |
2307 | * __s within this string. If found, returns the index where | |
2308 | * it begins. If not found, returns npos. | |
2309 | */ | |
2310 | size_type | |
39a03251 | 2311 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2312 | { |
2313 | __glibcxx_requires_string(__s); | |
2314 | return this->find(__s, __pos, traits_type::length(__s)); | |
2315 | } | |
2316 | ||
2317 | /** | |
2318 | * @brief Find position of a character. | |
2319 | * @param __c Character to locate. | |
2320 | * @param __pos Index of character to search from (default 0). | |
2321 | * @return Index of first occurrence. | |
2322 | * | |
2323 | * Starting from @a __pos, searches forward for @a __c within | |
2324 | * this string. If found, returns the index where it was | |
2325 | * found. If not found, returns npos. | |
2326 | */ | |
2327 | size_type | |
2328 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT; | |
2329 | ||
2330 | /** | |
2331 | * @brief Find last position of a string. | |
2332 | * @param __str String to locate. | |
2333 | * @param __pos Index of character to search back from (default end). | |
2334 | * @return Index of start of last occurrence. | |
2335 | * | |
2336 | * Starting from @a __pos, searches backward for value of @a | |
2337 | * __str within this string. If found, returns the index where | |
2338 | * it begins. If not found, returns npos. | |
2339 | */ | |
2340 | size_type | |
2341 | rfind(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2342 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2343 | { return this->rfind(__str.data(), __pos, __str.size()); } |
2344 | ||
ca8f2cb1 VV |
2345 | #if __cplusplus > 201402L |
2346 | /** | |
2347 | * @brief Find last position of a string_view. | |
2348 | * @param __sv The string_view to locate. | |
2349 | * @param __pos Index of character to search back from (default end). | |
2350 | * @return Index of start of last occurrence. | |
2351 | */ | |
2352 | size_type | |
657213f7 | 2353 | rfind(__sv_type __sv, size_type __pos = npos) const noexcept |
ca8f2cb1 VV |
2354 | { return this->rfind(__sv.data(), __pos, __sv.size()); } |
2355 | #endif // C++17 | |
2356 | ||
34a2b755 JW |
2357 | /** |
2358 | * @brief Find last position of a C substring. | |
2359 | * @param __s C string to locate. | |
2360 | * @param __pos Index of character to search back from. | |
2361 | * @param __n Number of characters from s to search for. | |
2362 | * @return Index of start of last occurrence. | |
2363 | * | |
2364 | * Starting from @a __pos, searches backward for the first @a | |
2365 | * __n characters in @a __s within this string. If found, | |
2366 | * returns the index where it begins. If not found, returns | |
2367 | * npos. | |
2368 | */ | |
2369 | size_type | |
39a03251 JW |
2370 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
2371 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2372 | |
2373 | /** | |
2374 | * @brief Find last position of a C string. | |
2375 | * @param __s C string to locate. | |
2376 | * @param __pos Index of character to start search at (default end). | |
2377 | * @return Index of start of last occurrence. | |
2378 | * | |
2379 | * Starting from @a __pos, searches backward for the value of | |
2380 | * @a __s within this string. If found, returns the index | |
2381 | * where it begins. If not found, returns npos. | |
2382 | */ | |
2383 | size_type | |
2384 | rfind(const _CharT* __s, size_type __pos = npos) const | |
2385 | { | |
2386 | __glibcxx_requires_string(__s); | |
2387 | return this->rfind(__s, __pos, traits_type::length(__s)); | |
2388 | } | |
2389 | ||
2390 | /** | |
2391 | * @brief Find last position of a character. | |
2392 | * @param __c Character to locate. | |
2393 | * @param __pos Index of character to search back from (default end). | |
2394 | * @return Index of last occurrence. | |
2395 | * | |
2396 | * Starting from @a __pos, searches backward for @a __c within | |
2397 | * this string. If found, returns the index where it was | |
2398 | * found. If not found, returns npos. | |
2399 | */ | |
2400 | size_type | |
2401 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT; | |
2402 | ||
2403 | /** | |
2404 | * @brief Find position of a character of string. | |
2405 | * @param __str String containing characters to locate. | |
2406 | * @param __pos Index of character to search from (default 0). | |
2407 | * @return Index of first occurrence. | |
2408 | * | |
2409 | * Starting from @a __pos, searches forward for one of the | |
2410 | * characters of @a __str within this string. If found, | |
2411 | * returns the index where it was found. If not found, returns | |
2412 | * npos. | |
2413 | */ | |
2414 | size_type | |
2415 | find_first_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2416 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2417 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
2418 | ||
ca8f2cb1 VV |
2419 | #if __cplusplus > 201402L |
2420 | /** | |
2421 | * @brief Find position of a character of a string_view. | |
2422 | * @param __sv A string_view containing characters to locate. | |
2423 | * @param __pos Index of character to search from (default 0). | |
2424 | * @return Index of first occurrence. | |
2425 | */ | |
2426 | size_type | |
2427 | find_first_of(__sv_type __sv, size_type __pos = 0) const noexcept | |
2428 | { return this->find_first_of(__sv.data(), __pos, __sv.size()); } | |
2429 | #endif // C++17 | |
2430 | ||
34a2b755 JW |
2431 | /** |
2432 | * @brief Find position of a character of C substring. | |
2433 | * @param __s String containing characters to locate. | |
2434 | * @param __pos Index of character to search from. | |
2435 | * @param __n Number of characters from s to search for. | |
2436 | * @return Index of first occurrence. | |
2437 | * | |
2438 | * Starting from @a __pos, searches forward for one of the | |
2439 | * first @a __n characters of @a __s within this string. If | |
2440 | * found, returns the index where it was found. If not found, | |
2441 | * returns npos. | |
2442 | */ | |
2443 | size_type | |
39a03251 JW |
2444 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
2445 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2446 | |
2447 | /** | |
2448 | * @brief Find position of a character of C string. | |
2449 | * @param __s String containing characters to locate. | |
2450 | * @param __pos Index of character to search from (default 0). | |
2451 | * @return Index of first occurrence. | |
2452 | * | |
2453 | * Starting from @a __pos, searches forward for one of the | |
2454 | * characters of @a __s within this string. If found, returns | |
2455 | * the index where it was found. If not found, returns npos. | |
2456 | */ | |
2457 | size_type | |
2458 | find_first_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2459 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2460 | { |
2461 | __glibcxx_requires_string(__s); | |
2462 | return this->find_first_of(__s, __pos, traits_type::length(__s)); | |
2463 | } | |
2464 | ||
2465 | /** | |
2466 | * @brief Find position of a character. | |
2467 | * @param __c Character to locate. | |
2468 | * @param __pos Index of character to search from (default 0). | |
2469 | * @return Index of first occurrence. | |
2470 | * | |
2471 | * Starting from @a __pos, searches forward for the character | |
2472 | * @a __c within this string. If found, returns the index | |
2473 | * where it was found. If not found, returns npos. | |
2474 | * | |
2475 | * Note: equivalent to find(__c, __pos). | |
2476 | */ | |
2477 | size_type | |
2478 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT | |
2479 | { return this->find(__c, __pos); } | |
2480 | ||
2481 | /** | |
2482 | * @brief Find last position of a character of string. | |
2483 | * @param __str String containing characters to locate. | |
2484 | * @param __pos Index of character to search back from (default end). | |
2485 | * @return Index of last occurrence. | |
2486 | * | |
2487 | * Starting from @a __pos, searches backward for one of the | |
2488 | * characters of @a __str within this string. If found, | |
2489 | * returns the index where it was found. If not found, returns | |
2490 | * npos. | |
2491 | */ | |
2492 | size_type | |
2493 | find_last_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2494 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2495 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
2496 | ||
ca8f2cb1 VV |
2497 | #if __cplusplus > 201402L |
2498 | /** | |
2499 | * @brief Find last position of a character of string. | |
2500 | * @param __sv A string_view containing characters to locate. | |
2501 | * @param __pos Index of character to search back from (default end). | |
2502 | * @return Index of last occurrence. | |
2503 | */ | |
2504 | size_type | |
2505 | find_last_of(__sv_type __sv, size_type __pos = npos) const noexcept | |
2506 | { return this->find_last_of(__sv.data(), __pos, __sv.size()); } | |
2507 | #endif // C++17 | |
2508 | ||
34a2b755 JW |
2509 | /** |
2510 | * @brief Find last position of a character of C substring. | |
2511 | * @param __s C string containing characters to locate. | |
2512 | * @param __pos Index of character to search back from. | |
2513 | * @param __n Number of characters from s to search for. | |
2514 | * @return Index of last occurrence. | |
2515 | * | |
2516 | * Starting from @a __pos, searches backward for one of the | |
2517 | * first @a __n characters of @a __s within this string. If | |
2518 | * found, returns the index where it was found. If not found, | |
2519 | * returns npos. | |
2520 | */ | |
2521 | size_type | |
39a03251 JW |
2522 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
2523 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2524 | |
2525 | /** | |
2526 | * @brief Find last position of a character of C string. | |
2527 | * @param __s C string containing characters to locate. | |
2528 | * @param __pos Index of character to search back from (default end). | |
2529 | * @return Index of last occurrence. | |
2530 | * | |
2531 | * Starting from @a __pos, searches backward for one of the | |
2532 | * characters of @a __s within this string. If found, returns | |
2533 | * the index where it was found. If not found, returns npos. | |
2534 | */ | |
2535 | size_type | |
2536 | find_last_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 2537 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2538 | { |
2539 | __glibcxx_requires_string(__s); | |
2540 | return this->find_last_of(__s, __pos, traits_type::length(__s)); | |
2541 | } | |
2542 | ||
2543 | /** | |
2544 | * @brief Find last position of a character. | |
2545 | * @param __c Character to locate. | |
2546 | * @param __pos Index of character to search back from (default end). | |
2547 | * @return Index of last occurrence. | |
2548 | * | |
2549 | * Starting from @a __pos, searches backward for @a __c within | |
2550 | * this string. If found, returns the index where it was | |
2551 | * found. If not found, returns npos. | |
2552 | * | |
2553 | * Note: equivalent to rfind(__c, __pos). | |
2554 | */ | |
2555 | size_type | |
2556 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT | |
2557 | { return this->rfind(__c, __pos); } | |
2558 | ||
2559 | /** | |
2560 | * @brief Find position of a character not in string. | |
2561 | * @param __str String containing characters to avoid. | |
2562 | * @param __pos Index of character to search from (default 0). | |
2563 | * @return Index of first occurrence. | |
2564 | * | |
2565 | * Starting from @a __pos, searches forward for a character not contained | |
2566 | * in @a __str within this string. If found, returns the index where it | |
2567 | * was found. If not found, returns npos. | |
2568 | */ | |
2569 | size_type | |
2570 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2571 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2572 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
2573 | ||
ca8f2cb1 VV |
2574 | #if __cplusplus > 201402L |
2575 | /** | |
2576 | * @brief Find position of a character not in a string_view. | |
2577 | * @param __sv A string_view containing characters to avoid. | |
2578 | * @param __pos Index of character to search from (default 0). | |
2579 | * @return Index of first occurrence. | |
2580 | */ | |
2581 | size_type | |
2582 | find_first_not_of(__sv_type __sv, size_type __pos = 0) const noexcept | |
2583 | { return this->find_first_not_of(__sv.data(), __pos, __sv.size()); } | |
2584 | #endif // C++17 | |
2585 | ||
34a2b755 JW |
2586 | /** |
2587 | * @brief Find position of a character not in C substring. | |
2588 | * @param __s C string containing characters to avoid. | |
2589 | * @param __pos Index of character to search from. | |
2590 | * @param __n Number of characters from __s to consider. | |
2591 | * @return Index of first occurrence. | |
2592 | * | |
2593 | * Starting from @a __pos, searches forward for a character not | |
2594 | * contained in the first @a __n characters of @a __s within | |
2595 | * this string. If found, returns the index where it was | |
2596 | * found. If not found, returns npos. | |
2597 | */ | |
2598 | size_type | |
2599 | find_first_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 2600 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2601 | |
2602 | /** | |
2603 | * @brief Find position of a character not in C string. | |
2604 | * @param __s C string containing characters to avoid. | |
2605 | * @param __pos Index of character to search from (default 0). | |
2606 | * @return Index of first occurrence. | |
2607 | * | |
2608 | * Starting from @a __pos, searches forward for a character not | |
2609 | * contained in @a __s within this string. If found, returns | |
2610 | * the index where it was found. If not found, returns npos. | |
2611 | */ | |
2612 | size_type | |
2613 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2614 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2615 | { |
2616 | __glibcxx_requires_string(__s); | |
2617 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); | |
2618 | } | |
2619 | ||
2620 | /** | |
2621 | * @brief Find position of a different character. | |
2622 | * @param __c Character to avoid. | |
2623 | * @param __pos Index of character to search from (default 0). | |
2624 | * @return Index of first occurrence. | |
2625 | * | |
2626 | * Starting from @a __pos, searches forward for a character | |
2627 | * other than @a __c within this string. If found, returns the | |
2628 | * index where it was found. If not found, returns npos. | |
2629 | */ | |
2630 | size_type | |
2631 | find_first_not_of(_CharT __c, size_type __pos = 0) const | |
39a03251 | 2632 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2633 | |
2634 | /** | |
2635 | * @brief Find last position of a character not in string. | |
2636 | * @param __str String containing characters to avoid. | |
2637 | * @param __pos Index of character to search back from (default end). | |
2638 | * @return Index of last occurrence. | |
2639 | * | |
2640 | * Starting from @a __pos, searches backward for a character | |
2641 | * not contained in @a __str within this string. If found, | |
2642 | * returns the index where it was found. If not found, returns | |
2643 | * npos. | |
2644 | */ | |
2645 | size_type | |
2646 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2647 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2648 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
2649 | ||
ca8f2cb1 VV |
2650 | #if __cplusplus > 201402L |
2651 | /** | |
2652 | * @brief Find last position of a character not in a string_view. | |
2653 | * @param __sv A string_view containing characters to avoid. | |
2654 | * @param __pos Index of character to search back from (default end). | |
2655 | * @return Index of last occurrence. | |
2656 | */ | |
2657 | size_type | |
2658 | find_last_not_of(__sv_type __sv, size_type __pos = npos) const noexcept | |
2659 | { return this->find_last_not_of(__sv.data(), __pos, __sv.size()); } | |
2660 | #endif // C++17 | |
2661 | ||
34a2b755 JW |
2662 | /** |
2663 | * @brief Find last position of a character not in C substring. | |
2664 | * @param __s C string containing characters to avoid. | |
2665 | * @param __pos Index of character to search back from. | |
2666 | * @param __n Number of characters from s to consider. | |
2667 | * @return Index of last occurrence. | |
2668 | * | |
2669 | * Starting from @a __pos, searches backward for a character not | |
2670 | * contained in the first @a __n characters of @a __s within this string. | |
2671 | * If found, returns the index where it was found. If not found, | |
2672 | * returns npos. | |
2673 | */ | |
2674 | size_type | |
2675 | find_last_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 2676 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2677 | /** |
2678 | * @brief Find last position of a character not in C string. | |
2679 | * @param __s C string containing characters to avoid. | |
2680 | * @param __pos Index of character to search back from (default end). | |
2681 | * @return Index of last occurrence. | |
2682 | * | |
2683 | * Starting from @a __pos, searches backward for a character | |
2684 | * not contained in @a __s within this string. If found, | |
2685 | * returns the index where it was found. If not found, returns | |
2686 | * npos. | |
2687 | */ | |
2688 | size_type | |
2689 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 2690 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2691 | { |
2692 | __glibcxx_requires_string(__s); | |
2693 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); | |
2694 | } | |
2695 | ||
2696 | /** | |
2697 | * @brief Find last position of a different character. | |
2698 | * @param __c Character to avoid. | |
2699 | * @param __pos Index of character to search back from (default end). | |
2700 | * @return Index of last occurrence. | |
2701 | * | |
2702 | * Starting from @a __pos, searches backward for a character other than | |
2703 | * @a __c within this string. If found, returns the index where it was | |
2704 | * found. If not found, returns npos. | |
2705 | */ | |
2706 | size_type | |
2707 | find_last_not_of(_CharT __c, size_type __pos = npos) const | |
39a03251 | 2708 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2709 | |
2710 | /** | |
2711 | * @brief Get a substring. | |
2712 | * @param __pos Index of first character (default 0). | |
2713 | * @param __n Number of characters in substring (default remainder). | |
2714 | * @return The new string. | |
2715 | * @throw std::out_of_range If __pos > size(). | |
2716 | * | |
2717 | * Construct and return a new string using the @a __n | |
2718 | * characters starting at @a __pos. If the string is too | |
2719 | * short, use the remainder of the characters. If @a __pos is | |
2720 | * beyond the end of the string, out_of_range is thrown. | |
2721 | */ | |
2722 | basic_string | |
2723 | substr(size_type __pos = 0, size_type __n = npos) const | |
2724 | { return basic_string(*this, | |
2725 | _M_check(__pos, "basic_string::substr"), __n); } | |
2726 | ||
2727 | /** | |
2728 | * @brief Compare to a string. | |
2729 | * @param __str String to compare against. | |
2730 | * @return Integer < 0, 0, or > 0. | |
2731 | * | |
2732 | * Returns an integer < 0 if this string is ordered before @a | |
2733 | * __str, 0 if their values are equivalent, or > 0 if this | |
2734 | * string is ordered after @a __str. Determines the effective | |
2735 | * length rlen of the strings to compare as the smallest of | |
2736 | * size() and str.size(). The function then compares the two | |
2737 | * strings by calling traits::compare(data(), str.data(),rlen). | |
2738 | * If the result of the comparison is nonzero returns it, | |
2739 | * otherwise the shorter one is ordered first. | |
2740 | */ | |
2741 | int | |
2742 | compare(const basic_string& __str) const | |
2743 | { | |
2744 | const size_type __size = this->size(); | |
2745 | const size_type __osize = __str.size(); | |
2746 | const size_type __len = std::min(__size, __osize); | |
2747 | ||
2d60da10 | 2748 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
34a2b755 JW |
2749 | if (!__r) |
2750 | __r = _S_compare(__size, __osize); | |
2751 | return __r; | |
2752 | } | |
2753 | ||
ca8f2cb1 VV |
2754 | #if __cplusplus > 201402L |
2755 | /** | |
2756 | * @brief Compare to a string_view. | |
2757 | * @param __sv A string_view to compare against. | |
2758 | * @return Integer < 0, 0, or > 0. | |
2759 | */ | |
2760 | int | |
2761 | compare(__sv_type __sv) const | |
2762 | { | |
2763 | const size_type __size = this->size(); | |
2764 | const size_type __osize = __sv.size(); | |
2765 | const size_type __len = std::min(__size, __osize); | |
2766 | ||
2767 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); | |
2768 | if (!__r) | |
2769 | __r = _S_compare(__size, __osize); | |
2770 | return __r; | |
2771 | } | |
2772 | ||
2773 | /** | |
2774 | * @brief Compare to a string_view. | |
2775 | * @param __pos A position in the string to start comparing from. | |
2776 | * @param __n The number of characters to compare. | |
2777 | * @param __sv A string_view to compare against. | |
2778 | * @return Integer < 0, 0, or > 0. | |
2779 | */ | |
2780 | int | |
657213f7 JW |
2781 | compare(size_type __pos, size_type __n, __sv_type __sv) const |
2782 | { return __sv_type(*this).substr(__pos, __n).compare(__sv); } | |
ca8f2cb1 VV |
2783 | |
2784 | /** | |
2785 | * @brief Compare to a string_view. | |
2786 | * @param __pos1 A position in the string to start comparing from. | |
2787 | * @param __n1 The number of characters to compare. | |
2788 | * @param __sv A string_view to compare against. | |
2789 | * @param __pos2 A position in the string_view to start comparing from. | |
2790 | * @param __n2 The number of characters to compare. | |
2791 | * @return Integer < 0, 0, or > 0. | |
2792 | */ | |
657213f7 JW |
2793 | template <typename _Tp> |
2794 | _If_sv<_Tp, int> | |
2795 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, | |
2796 | size_type __pos2, size_type __n2 = npos) const | |
2797 | { | |
2798 | __sv_type __sv = __svt; | |
2799 | return __sv_type(*this) | |
2800 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); | |
2801 | } | |
ca8f2cb1 VV |
2802 | #endif // C++17 |
2803 | ||
34a2b755 JW |
2804 | /** |
2805 | * @brief Compare substring to a string. | |
2806 | * @param __pos Index of first character of substring. | |
2807 | * @param __n Number of characters in substring. | |
2808 | * @param __str String to compare against. | |
2809 | * @return Integer < 0, 0, or > 0. | |
2810 | * | |
2811 | * Form the substring of this string from the @a __n characters | |
2812 | * starting at @a __pos. Returns an integer < 0 if the | |
2813 | * substring is ordered before @a __str, 0 if their values are | |
2814 | * equivalent, or > 0 if the substring is ordered after @a | |
2815 | * __str. Determines the effective length rlen of the strings | |
2816 | * to compare as the smallest of the length of the substring | |
2817 | * and @a __str.size(). The function then compares the two | |
2818 | * strings by calling | |
2819 | * traits::compare(substring.data(),str.data(),rlen). If the | |
2820 | * result of the comparison is nonzero returns it, otherwise | |
2821 | * the shorter one is ordered first. | |
2822 | */ | |
2823 | int | |
2824 | compare(size_type __pos, size_type __n, const basic_string& __str) const; | |
2825 | ||
2826 | /** | |
2827 | * @brief Compare substring to a substring. | |
2828 | * @param __pos1 Index of first character of substring. | |
2829 | * @param __n1 Number of characters in substring. | |
2830 | * @param __str String to compare against. | |
2831 | * @param __pos2 Index of first character of substring of str. | |
2832 | * @param __n2 Number of characters in substring of str. | |
2833 | * @return Integer < 0, 0, or > 0. | |
2834 | * | |
2835 | * Form the substring of this string from the @a __n1 | |
2836 | * characters starting at @a __pos1. Form the substring of @a | |
2837 | * __str from the @a __n2 characters starting at @a __pos2. | |
2838 | * Returns an integer < 0 if this substring is ordered before | |
2839 | * the substring of @a __str, 0 if their values are equivalent, | |
2840 | * or > 0 if this substring is ordered after the substring of | |
2841 | * @a __str. Determines the effective length rlen of the | |
2842 | * strings to compare as the smallest of the lengths of the | |
2843 | * substrings. The function then compares the two strings by | |
2844 | * calling | |
2845 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). | |
2846 | * If the result of the comparison is nonzero returns it, | |
2847 | * otherwise the shorter one is ordered first. | |
2848 | */ | |
2849 | int | |
2850 | compare(size_type __pos1, size_type __n1, const basic_string& __str, | |
2851 | size_type __pos2, size_type __n2) const; | |
2852 | ||
2853 | /** | |
2854 | * @brief Compare to a C string. | |
2855 | * @param __s C string to compare against. | |
2856 | * @return Integer < 0, 0, or > 0. | |
2857 | * | |
2858 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if | |
2859 | * their values are equivalent, or > 0 if this string is ordered after | |
2860 | * @a __s. Determines the effective length rlen of the strings to | |
2861 | * compare as the smallest of size() and the length of a string | |
2862 | * constructed from @a __s. The function then compares the two strings | |
2863 | * by calling traits::compare(data(),s,rlen). If the result of the | |
2864 | * comparison is nonzero returns it, otherwise the shorter one is | |
2865 | * ordered first. | |
2866 | */ | |
2867 | int | |
39a03251 | 2868 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2869 | |
2870 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
2871 | // 5 String::compare specification questionable | |
2872 | /** | |
2873 | * @brief Compare substring to a C string. | |
2874 | * @param __pos Index of first character of substring. | |
2875 | * @param __n1 Number of characters in substring. | |
2876 | * @param __s C string to compare against. | |
2877 | * @return Integer < 0, 0, or > 0. | |
2878 | * | |
2879 | * Form the substring of this string from the @a __n1 | |
2880 | * characters starting at @a pos. Returns an integer < 0 if | |
2881 | * the substring is ordered before @a __s, 0 if their values | |
2882 | * are equivalent, or > 0 if the substring is ordered after @a | |
2883 | * __s. Determines the effective length rlen of the strings to | |
2884 | * compare as the smallest of the length of the substring and | |
2885 | * the length of a string constructed from @a __s. The | |
2886 | * function then compares the two string by calling | |
2887 | * traits::compare(substring.data(),__s,rlen). If the result of | |
2888 | * the comparison is nonzero returns it, otherwise the shorter | |
2889 | * one is ordered first. | |
2890 | */ | |
2891 | int | |
2892 | compare(size_type __pos, size_type __n1, const _CharT* __s) const; | |
2893 | ||
2894 | /** | |
2895 | * @brief Compare substring against a character %array. | |
2896 | * @param __pos Index of first character of substring. | |
2897 | * @param __n1 Number of characters in substring. | |
2898 | * @param __s character %array to compare against. | |
2899 | * @param __n2 Number of characters of s. | |
2900 | * @return Integer < 0, 0, or > 0. | |
2901 | * | |
2902 | * Form the substring of this string from the @a __n1 | |
2903 | * characters starting at @a __pos. Form a string from the | |
2904 | * first @a __n2 characters of @a __s. Returns an integer < 0 | |
2905 | * if this substring is ordered before the string from @a __s, | |
2906 | * 0 if their values are equivalent, or > 0 if this substring | |
2907 | * is ordered after the string from @a __s. Determines the | |
2908 | * effective length rlen of the strings to compare as the | |
2909 | * smallest of the length of the substring and @a __n2. The | |
2910 | * function then compares the two strings by calling | |
2911 | * traits::compare(substring.data(),s,rlen). If the result of | |
2912 | * the comparison is nonzero returns it, otherwise the shorter | |
2913 | * one is ordered first. | |
2914 | * | |
2915 | * NB: s must have at least n2 characters, '\\0' has | |
2916 | * no special meaning. | |
2917 | */ | |
2918 | int | |
2919 | compare(size_type __pos, size_type __n1, const _CharT* __s, | |
2920 | size_type __n2) const; | |
93ef155b JW |
2921 | |
2922 | // Allow basic_stringbuf::__xfer_bufptrs to call _M_length: | |
2923 | template<typename, typename, typename> friend class basic_stringbuf; | |
2924 | }; | |
34a2b755 JW |
2925 | _GLIBCXX_END_NAMESPACE_CXX11 |
2926 | #else // !_GLIBCXX_USE_CXX11_ABI | |
2927 | // Reference-counted COW string implentation | |
2928 | ||
51122a42 PE |
2929 | /** |
2930 | * @class basic_string basic_string.h <string> | |
2931 | * @brief Managing sequences of characters and character-like objects. | |
2932 | * | |
abe47819 | 2933 | * @ingroup strings |
aac2878e | 2934 | * @ingroup sequences |
51122a42 | 2935 | * |
d632488a BK |
2936 | * @tparam _CharT Type of character |
2937 | * @tparam _Traits Traits for character type, defaults to | |
2938 | * char_traits<_CharT>. | |
2939 | * @tparam _Alloc Allocator type, defaults to allocator<_CharT>. | |
2940 | * | |
51122a42 PE |
2941 | * Meets the requirements of a <a href="tables.html#65">container</a>, a |
2942 | * <a href="tables.html#66">reversible container</a>, and a | |
2943 | * <a href="tables.html#67">sequence</a>. Of the | |
2944 | * <a href="tables.html#68">optional sequence requirements</a>, only | |
abe47819 | 2945 | * @c push_back, @c at, and @c %array access are supported. |
51122a42 PE |
2946 | * |
2947 | * @doctodo | |
2948 | * | |
2949 | * | |
51122a42 PE |
2950 | * Documentation? What's that? |
2951 | * Nathan Myers <ncm@cantrip.org>. | |
2952 | * | |
2953 | * A string looks like this: | |
2954 | * | |
2955 | * @code | |
2956 | * [_Rep] | |
2957 | * _M_length | |
2958 | * [basic_string<char_type>] _M_capacity | |
eee54836 | 2959 | * _M_dataplus _M_refcount |
51122a42 PE |
2960 | * _M_p ----------------> unnamed array of char_type |
2961 | * @endcode | |
2962 | * | |
2963 | * Where the _M_p points to the first character in the string, and | |
2964 | * you cast it to a pointer-to-_Rep and subtract 1 to get a | |
2965 | * pointer to the header. | |
2966 | * | |
2967 | * This approach has the enormous advantage that a string object | |
2968 | * requires only one allocation. All the ugliness is confined | |
0d1141a3 | 2969 | * within a single %pair of inline functions, which each compile to |
2a60a9f6 | 2970 | * a single @a add instruction: _Rep::_M_data(), and |
51122a42 PE |
2971 | * string::_M_rep(); and the allocation function which gets a |
2972 | * block of raw bytes and with room enough and constructs a _Rep | |
2973 | * object at the front. | |
2974 | * | |
0d1141a3 | 2975 | * The reason you want _M_data pointing to the character %array and |
51122a42 PE |
2976 | * not the _Rep is so that the debugger can see the string |
2977 | * contents. (Probably we should add a non-inline member to get | |
2978 | * the _Rep for the debugger to use, so users can check the actual | |
2979 | * string length.) | |
2980 | * | |
2981 | * Note that the _Rep object is a POD so that you can have a | |
2a60a9f6 | 2982 | * static <em>empty string</em> _Rep object already @a constructed before |
51122a42 PE |
2983 | * static constructors have run. The reference-count encoding is |
2984 | * chosen so that a 0 indicates one reference, so you never try to | |
2985 | * destroy the empty-string _Rep object. | |
2986 | * | |
2987 | * All but the last paragraph is considered pretty conventional | |
2988 | * for a C++ string implementation. | |
51122a42 | 2989 | */ |
725dc051 BK |
2990 | // 21.3 Template class basic_string |
2991 | template<typename _CharT, typename _Traits, typename _Alloc> | |
2992 | class basic_string | |
2993 | { | |
4fd20a8f PC |
2994 | typedef typename _Alloc::template rebind<_CharT>::other _CharT_alloc_type; |
2995 | ||
725dc051 BK |
2996 | // Types: |
2997 | public: | |
ed6814f7 BI |
2998 | typedef _Traits traits_type; |
2999 | typedef typename _Traits::char_type value_type; | |
3000 | typedef _Alloc allocator_type; | |
4fd20a8f PC |
3001 | typedef typename _CharT_alloc_type::size_type size_type; |
3002 | typedef typename _CharT_alloc_type::difference_type difference_type; | |
3003 | typedef typename _CharT_alloc_type::reference reference; | |
3004 | typedef typename _CharT_alloc_type::const_reference const_reference; | |
3005 | typedef typename _CharT_alloc_type::pointer pointer; | |
3006 | typedef typename _CharT_alloc_type::const_pointer const_pointer; | |
f1e888ae GDR |
3007 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; |
3008 | typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> | |
3009 | const_iterator; | |
ed6814f7 BI |
3010 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; |
3011 | typedef std::reverse_iterator<iterator> reverse_iterator; | |
51122a42 | 3012 | |
725dc051 BK |
3013 | private: |
3014 | // _Rep: string representation | |
3015 | // Invariants: | |
acbab5bf PC |
3016 | // 1. String really contains _M_length + 1 characters: due to 21.3.4 |
3017 | // must be kept null-terminated. | |
725dc051 | 3018 | // 2. _M_capacity >= _M_length |
8de63ee0 | 3019 | // Allocated memory is always (_M_capacity + 1) * sizeof(_CharT). |
1313d87f | 3020 | // 3. _M_refcount has three states: |
725dc051 BK |
3021 | // -1: leaked, one reference, no ref-copies allowed, non-const. |
3022 | // 0: one reference, non-const. | |
3023 | // n>0: n + 1 references, operations require a lock, const. | |
3024 | // 4. All fields==0 is an empty string, given the extra storage | |
3025 | // beyond-the-end for a null terminator; thus, the shared | |
3026 | // empty string representation needs no constructor. | |
ca566e4c NM |
3027 | |
3028 | struct _Rep_base | |
3029 | { | |
ed6814f7 BI |
3030 | size_type _M_length; |
3031 | size_type _M_capacity; | |
1313d87f | 3032 | _Atomic_word _M_refcount; |
ca566e4c NM |
3033 | }; |
3034 | ||
3035 | struct _Rep : _Rep_base | |
725dc051 BK |
3036 | { |
3037 | // Types: | |
6be8b524 | 3038 | typedef typename _Alloc::template rebind<char>::other _Raw_bytes_alloc; |
725dc051 | 3039 | |
51122a42 | 3040 | // (Public) Data members: |
725dc051 BK |
3041 | |
3042 | // The maximum number of individual char_type elements of an | |
3043 | // individual string is determined by _S_max_size. This is the | |
3044 | // value that will be returned by max_size(). (Whereas npos | |
3045 | // is the maximum number of bytes the allocator can allocate.) | |
3046 | // If one was to divvy up the theoretical largest size string, | |
3047 | // with a terminating character and m _CharT elements, it'd | |
51122a42 | 3048 | // look like this: |
725dc051 BK |
3049 | // npos = sizeof(_Rep) + (m * sizeof(_CharT)) + sizeof(_CharT) |
3050 | // Solving for m: | |
51122a42 | 3051 | // m = ((npos - sizeof(_Rep))/sizeof(CharT)) - 1 |
ca566e4c | 3052 | // In addition, this implementation quarters this amount. |
ed6814f7 BI |
3053 | static const size_type _S_max_size; |
3054 | static const _CharT _S_terminal; | |
725dc051 | 3055 | |
ca566e4c NM |
3056 | // The following storage is init'd to 0 by the linker, resulting |
3057 | // (carefully) in an empty string with one reference. | |
3058 | static size_type _S_empty_rep_storage[]; | |
51122a42 | 3059 | |
ed6814f7 | 3060 | static _Rep& |
d15ac9d9 | 3061 | _S_empty_rep() _GLIBCXX_NOEXCEPT |
7fdc0307 PC |
3062 | { |
3063 | // NB: Mild hack to avoid strict-aliasing warnings. Note that | |
3064 | // _S_empty_rep_storage is never modified and the punning should | |
3065 | // be reasonably safe in this case. | |
3066 | void* __p = reinterpret_cast<void*>(&_S_empty_rep_storage); | |
3067 | return *reinterpret_cast<_Rep*>(__p); | |
3068 | } | |
ed6814f7 | 3069 | |
725dc051 | 3070 | bool |
d15ac9d9 | 3071 | _M_is_leaked() const _GLIBCXX_NOEXCEPT |
71046523 DV |
3072 | { |
3073 | #if defined(__GTHREADS) | |
3074 | // _M_refcount is mutated concurrently by _M_refcopy/_M_dispose, | |
3075 | // so we need to use an atomic load. However, _M_is_leaked | |
3076 | // predicate does not change concurrently (i.e. the string is either | |
3077 | // leaked or not), so a relaxed load is enough. | |
3078 | return __atomic_load_n(&this->_M_refcount, __ATOMIC_RELAXED) < 0; | |
3079 | #else | |
3080 | return this->_M_refcount < 0; | |
3081 | #endif | |
3082 | } | |
725dc051 BK |
3083 | |
3084 | bool | |
d15ac9d9 | 3085 | _M_is_shared() const _GLIBCXX_NOEXCEPT |
71046523 DV |
3086 | { |
3087 | #if defined(__GTHREADS) | |
3088 | // _M_refcount is mutated concurrently by _M_refcopy/_M_dispose, | |
3089 | // so we need to use an atomic load. Another thread can drop last | |
3090 | // but one reference concurrently with this check, so we need this | |
3091 | // load to be acquire to synchronize with release fetch_and_add in | |
3092 | // _M_dispose. | |
3093 | return __atomic_load_n(&this->_M_refcount, __ATOMIC_ACQUIRE) > 0; | |
3094 | #else | |
3095 | return this->_M_refcount > 0; | |
3096 | #endif | |
3097 | } | |
725dc051 BK |
3098 | |
3099 | void | |
d15ac9d9 | 3100 | _M_set_leaked() _GLIBCXX_NOEXCEPT |
1313d87f | 3101 | { this->_M_refcount = -1; } |
725dc051 BK |
3102 | |
3103 | void | |
d15ac9d9 | 3104 | _M_set_sharable() _GLIBCXX_NOEXCEPT |
1313d87f | 3105 | { this->_M_refcount = 0; } |
725dc051 | 3106 | |
cbf52bfa | 3107 | void |
d15ac9d9 | 3108 | _M_set_length_and_sharable(size_type __n) _GLIBCXX_NOEXCEPT |
7309083f | 3109 | { |
d7a3ef97 | 3110 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
7309083f PC |
3111 | if (__builtin_expect(this != &_S_empty_rep(), false)) |
3112 | #endif | |
3113 | { | |
3114 | this->_M_set_sharable(); // One reference. | |
3115 | this->_M_length = __n; | |
3116 | traits_type::assign(this->_M_refdata()[__n], _S_terminal); | |
3117 | // grrr. (per 21.3.4) | |
3118 | // You cannot leave those LWG people alone for a second. | |
3119 | } | |
cbf52bfa PC |
3120 | } |
3121 | ||
51122a42 | 3122 | _CharT* |
725dc051 | 3123 | _M_refdata() throw() |
663653eb | 3124 | { return reinterpret_cast<_CharT*>(this + 1); } |
725dc051 | 3125 | |
51122a42 | 3126 | _CharT* |
725dc051 | 3127 | _M_grab(const _Alloc& __alloc1, const _Alloc& __alloc2) |
51122a42 PE |
3128 | { |
3129 | return (!_M_is_leaked() && __alloc1 == __alloc2) | |
3130 | ? _M_refcopy() : _M_clone(__alloc1); | |
663653eb | 3131 | } |
725dc051 BK |
3132 | |
3133 | // Create & Destroy | |
51122a42 | 3134 | static _Rep* |
234e0d31 | 3135 | _S_create(size_type, size_type, const _Alloc&); |
725dc051 | 3136 | |
51122a42 | 3137 | void |
d15ac9d9 | 3138 | _M_dispose(const _Alloc& __a) _GLIBCXX_NOEXCEPT |
51122a42 | 3139 | { |
d7a3ef97 | 3140 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
ca566e4c | 3141 | if (__builtin_expect(this != &_S_empty_rep(), false)) |
1165dc50 | 3142 | #endif |
be335b18 KS |
3143 | { |
3144 | // Be race-detector-friendly. For more info see bits/c++config. | |
8c61f400 | 3145 | _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount); |
71046523 DV |
3146 | // Decrement of _M_refcount is acq_rel, because: |
3147 | // - all but last decrements need to release to synchronize with | |
3148 | // the last decrement that will delete the object. | |
3149 | // - the last decrement needs to acquire to synchronize with | |
3150 | // all the previous decrements. | |
3151 | // - last but one decrement needs to release to synchronize with | |
3152 | // the acquire load in _M_is_shared that will conclude that | |
3153 | // the object is not shared anymore. | |
be335b18 KS |
3154 | if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, |
3155 | -1) <= 0) | |
3156 | { | |
8c61f400 | 3157 | _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount); |
be335b18 KS |
3158 | _M_destroy(__a); |
3159 | } | |
3160 | } | |
725dc051 BK |
3161 | } // XXX MT |
3162 | ||
51122a42 | 3163 | void |
725dc051 BK |
3164 | _M_destroy(const _Alloc&) throw(); |
3165 | ||
51122a42 | 3166 | _CharT* |
725dc051 | 3167 | _M_refcopy() throw() |
51122a42 | 3168 | { |
d7a3ef97 | 3169 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
ca566e4c | 3170 | if (__builtin_expect(this != &_S_empty_rep(), false)) |
1165dc50 | 3171 | #endif |
b7ee72de | 3172 | __gnu_cxx::__atomic_add_dispatch(&this->_M_refcount, 1); |
51122a42 | 3173 | return _M_refdata(); |
725dc051 BK |
3174 | } // XXX MT |
3175 | ||
51122a42 | 3176 | _CharT* |
725dc051 | 3177 | _M_clone(const _Alloc&, size_type __res = 0); |
725dc051 BK |
3178 | }; |
3179 | ||
3180 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html | |
3181 | struct _Alloc_hider : _Alloc | |
3182 | { | |
d15ac9d9 | 3183 | _Alloc_hider(_CharT* __dat, const _Alloc& __a) _GLIBCXX_NOEXCEPT |
725dc051 BK |
3184 | : _Alloc(__a), _M_p(__dat) { } |
3185 | ||
3186 | _CharT* _M_p; // The actual data. | |
3187 | }; | |
3188 | ||
3189 | public: | |
3190 | // Data Members (public): | |
3191 | // NB: This is an unsigned type, and thus represents the maximum | |
3192 | // size that the allocator can hold. | |
20fff8cd | 3193 | /// Value returned by various member functions when they fail. |
ed6814f7 | 3194 | static const size_type npos = static_cast<size_type>(-1); |
725dc051 BK |
3195 | |
3196 | private: | |
3197 | // Data Members (private): | |
ed6814f7 | 3198 | mutable _Alloc_hider _M_dataplus; |
725dc051 | 3199 | |
51122a42 | 3200 | _CharT* |
d15ac9d9 | 3201 | _M_data() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3202 | { return _M_dataplus._M_p; } |
3203 | ||
51122a42 | 3204 | _CharT* |
d15ac9d9 | 3205 | _M_data(_CharT* __p) _GLIBCXX_NOEXCEPT |
725dc051 BK |
3206 | { return (_M_dataplus._M_p = __p); } |
3207 | ||
51122a42 | 3208 | _Rep* |
d15ac9d9 | 3209 | _M_rep() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3210 | { return &((reinterpret_cast<_Rep*> (_M_data()))[-1]); } |
3211 | ||
3212 | // For the internal use we have functions similar to `begin'/`end' | |
3213 | // but they do not call _M_leak. | |
51122a42 | 3214 | iterator |
d15ac9d9 | 3215 | _M_ibegin() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3216 | { return iterator(_M_data()); } |
725dc051 | 3217 | |
51122a42 | 3218 | iterator |
d15ac9d9 | 3219 | _M_iend() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3220 | { return iterator(_M_data() + this->size()); } |
725dc051 | 3221 | |
51122a42 | 3222 | void |
725dc051 | 3223 | _M_leak() // for use in begin() & non-const op[] |
51122a42 PE |
3224 | { |
3225 | if (!_M_rep()->_M_is_leaked()) | |
3226 | _M_leak_hard(); | |
725dc051 BK |
3227 | } |
3228 | ||
e03a6fb7 PC |
3229 | size_type |
3230 | _M_check(size_type __pos, const char* __s) const | |
51122a42 | 3231 | { |
e2c09482 | 3232 | if (__pos > this->size()) |
9779c871 PP |
3233 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > " |
3234 | "this->size() (which is %zu)"), | |
3235 | __s, __pos, this->size()); | |
e03a6fb7 | 3236 | return __pos; |
725dc051 BK |
3237 | } |
3238 | ||
ec61e852 PC |
3239 | void |
3240 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const | |
3241 | { | |
3242 | if (this->max_size() - (this->size() - __n1) < __n2) | |
3243 | __throw_length_error(__N(__s)); | |
3244 | } | |
3245 | ||
e03a6fb7 PC |
3246 | // NB: _M_limit doesn't check for a bad __pos value. |
3247 | size_type | |
d15ac9d9 | 3248 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT |
51122a42 | 3249 | { |
7778fa6e | 3250 | const bool __testoff = __off < this->size() - __pos; |
e03a6fb7 | 3251 | return __testoff ? __off : this->size() - __pos; |
725dc051 BK |
3252 | } |
3253 | ||
8eae76be PC |
3254 | // True if _Rep and source do not overlap. |
3255 | bool | |
d15ac9d9 | 3256 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT |
8eae76be PC |
3257 | { |
3258 | return (less<const _CharT*>()(__s, _M_data()) | |
3259 | || less<const _CharT*>()(_M_data() + this->size(), __s)); | |
3260 | } | |
3261 | ||
ec61e852 PC |
3262 | // When __n = 1 way faster than the general multichar |
3263 | // traits_type::copy/move/assign. | |
3264 | static void | |
d15ac9d9 | 3265 | _M_copy(_CharT* __d, const _CharT* __s, size_type __n) _GLIBCXX_NOEXCEPT |
ec61e852 PC |
3266 | { |
3267 | if (__n == 1) | |
3268 | traits_type::assign(*__d, *__s); | |
3269 | else | |
3270 | traits_type::copy(__d, __s, __n); | |
3271 | } | |
3272 | ||
3273 | static void | |
d15ac9d9 | 3274 | _M_move(_CharT* __d, const _CharT* __s, size_type __n) _GLIBCXX_NOEXCEPT |
ec61e852 PC |
3275 | { |
3276 | if (__n == 1) | |
3277 | traits_type::assign(*__d, *__s); | |
3278 | else | |
3279 | traits_type::move(__d, __s, __n); | |
3280 | } | |
3281 | ||
3282 | static void | |
d15ac9d9 | 3283 | _M_assign(_CharT* __d, size_type __n, _CharT __c) _GLIBCXX_NOEXCEPT |
ec61e852 PC |
3284 | { |
3285 | if (__n == 1) | |
3286 | traits_type::assign(*__d, __c); | |
3287 | else | |
3288 | traits_type::assign(__d, __n, __c); | |
3289 | } | |
3290 | ||
725dc051 BK |
3291 | // _S_copy_chars is a separate template to permit specialization |
3292 | // to optimize for the common case of pointers as iterators. | |
3293 | template<class _Iterator> | |
3294 | static void | |
3295 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) | |
51122a42 | 3296 | { |
f970a17d | 3297 | for (; __k1 != __k2; ++__k1, (void)++__p) |
9a304d17 | 3298 | traits_type::assign(*__p, *__k1); // These types are off. |
725dc051 BK |
3299 | } |
3300 | ||
3301 | static void | |
d15ac9d9 | 3302 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPT |
725dc051 BK |
3303 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } |
3304 | ||
3305 | static void | |
3306 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) | |
d15ac9d9 | 3307 | _GLIBCXX_NOEXCEPT |
725dc051 | 3308 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } |
51122a42 | 3309 | |
725dc051 | 3310 | static void |
d15ac9d9 | 3311 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPT |
ec61e852 | 3312 | { _M_copy(__p, __k1, __k2 - __k1); } |
725dc051 BK |
3313 | |
3314 | static void | |
3315 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) | |
d15ac9d9 | 3316 | _GLIBCXX_NOEXCEPT |
ec61e852 | 3317 | { _M_copy(__p, __k1, __k2 - __k1); } |
725dc051 | 3318 | |
9521dd6b | 3319 | static int |
d15ac9d9 | 3320 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPT |
9521dd6b PC |
3321 | { |
3322 | const difference_type __d = difference_type(__n1 - __n2); | |
3323 | ||
6725add5 PC |
3324 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) |
3325 | return __gnu_cxx::__numeric_traits<int>::__max; | |
3326 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) | |
3327 | return __gnu_cxx::__numeric_traits<int>::__min; | |
9521dd6b | 3328 | else |
6725add5 | 3329 | return int(__d); |
9521dd6b PC |
3330 | } |
3331 | ||
51122a42 | 3332 | void |
725dc051 BK |
3333 | _M_mutate(size_type __pos, size_type __len1, size_type __len2); |
3334 | ||
51122a42 | 3335 | void |
725dc051 BK |
3336 | _M_leak_hard(); |
3337 | ||
51122a42 | 3338 | static _Rep& |
d15ac9d9 | 3339 | _S_empty_rep() _GLIBCXX_NOEXCEPT |
ca566e4c | 3340 | { return _Rep::_S_empty_rep(); } |
725dc051 | 3341 | |
92daf2de JW |
3342 | #if __cplusplus > 201402L |
3343 | // A helper type for avoiding boiler-plate. | |
3344 | typedef basic_string_view<_CharT, _Traits> __sv_type; | |
3345 | ||
3346 | template<typename _Tp, typename _Res> | |
3347 | using _If_sv = enable_if_t< | |
3348 | __and_<is_convertible<const _Tp&, __sv_type>, | |
3349 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, | |
3350 | _Res>; | |
3351 | #endif | |
3352 | ||
725dc051 BK |
3353 | public: |
3354 | // Construct/copy/destroy: | |
3355 | // NB: We overload ctors in some cases instead of using default | |
3356 | // arguments, per 17.4.4.4 para. 2 item 2. | |
3357 | ||
284f19bf JQ |
3358 | /** |
3359 | * @brief Default constructor creates an empty string. | |
3360 | */ | |
10154e0d | 3361 | basic_string() |
d7a3ef97 | 3362 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
10154e0d PC |
3363 | : _M_dataplus(_S_empty_rep()._M_refdata(), _Alloc()) { } |
3364 | #else | |
3365 | : _M_dataplus(_S_construct(size_type(), _CharT(), _Alloc()), _Alloc()){ } | |
3366 | #endif | |
725dc051 | 3367 | |
284f19bf | 3368 | /** |
a65da37d | 3369 | * @brief Construct an empty string using allocator @a a. |
284f19bf | 3370 | */ |
51122a42 | 3371 | explicit |
725dc051 BK |
3372 | basic_string(const _Alloc& __a); |
3373 | ||
3374 | // NB: per LWG issue 42, semantics different from IS: | |
284f19bf JQ |
3375 | /** |
3376 | * @brief Construct string with copy of value of @a str. | |
93c66bc6 | 3377 | * @param __str Source string. |
284f19bf | 3378 | */ |
725dc051 | 3379 | basic_string(const basic_string& __str); |
86bbf15b JW |
3380 | |
3381 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3382 | // 2583. no way to supply an allocator for basic_string(str, pos) | |
3383 | /** | |
3384 | * @brief Construct string as copy of a substring. | |
3385 | * @param __str Source string. | |
3386 | * @param __pos Index of first character to copy from. | |
3387 | * @param __a Allocator to use. | |
3388 | */ | |
3389 | basic_string(const basic_string& __str, size_type __pos, | |
3390 | const _Alloc& __a = _Alloc()); | |
3391 | ||
284f19bf JQ |
3392 | /** |
3393 | * @brief Construct string as copy of a substring. | |
93c66bc6 BK |
3394 | * @param __str Source string. |
3395 | * @param __pos Index of first character to copy from. | |
86bbf15b | 3396 | * @param __n Number of characters to copy. |
284f19bf | 3397 | */ |
725dc051 | 3398 | basic_string(const basic_string& __str, size_type __pos, |
86bbf15b | 3399 | size_type __n); |
284f19bf JQ |
3400 | /** |
3401 | * @brief Construct string as copy of a substring. | |
93c66bc6 BK |
3402 | * @param __str Source string. |
3403 | * @param __pos Index of first character to copy from. | |
3404 | * @param __n Number of characters to copy. | |
3405 | * @param __a Allocator to use. | |
284f19bf | 3406 | */ |
725dc051 BK |
3407 | basic_string(const basic_string& __str, size_type __pos, |
3408 | size_type __n, const _Alloc& __a); | |
3409 | ||
284f19bf | 3410 | /** |
0d1141a3 | 3411 | * @brief Construct string initialized by a character %array. |
93c66bc6 BK |
3412 | * @param __s Source character %array. |
3413 | * @param __n Number of characters to copy. | |
3414 | * @param __a Allocator to use (default is default allocator). | |
ed6814f7 | 3415 | * |
93c66bc6 | 3416 | * NB: @a __s must have at least @a __n characters, '\\0' |
2a60a9f6 | 3417 | * has no special meaning. |
284f19bf | 3418 | */ |
725dc051 BK |
3419 | basic_string(const _CharT* __s, size_type __n, |
3420 | const _Alloc& __a = _Alloc()); | |
284f19bf JQ |
3421 | /** |
3422 | * @brief Construct string as copy of a C string. | |
93c66bc6 BK |
3423 | * @param __s Source C string. |
3424 | * @param __a Allocator to use (default is default allocator). | |
284f19bf | 3425 | */ |
725dc051 | 3426 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()); |
284f19bf JQ |
3427 | /** |
3428 | * @brief Construct string as multiple characters. | |
93c66bc6 BK |
3429 | * @param __n Number of characters. |
3430 | * @param __c Character to use. | |
3431 | * @param __a Allocator to use (default is default allocator). | |
284f19bf | 3432 | */ |
725dc051 BK |
3433 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()); |
3434 | ||
734f5023 | 3435 | #if __cplusplus >= 201103L |
10154e0d PC |
3436 | /** |
3437 | * @brief Move construct string. | |
93c66bc6 | 3438 | * @param __str Source string. |
10154e0d | 3439 | * |
93c66bc6 BK |
3440 | * The newly-created string contains the exact contents of @a __str. |
3441 | * @a __str is a valid, but unspecified string. | |
10154e0d | 3442 | **/ |
63ebd8f1 MG |
3443 | basic_string(basic_string&& __str) |
3444 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 | |
3445 | noexcept // FIXME C++11: should always be noexcept. | |
3446 | #endif | |
10154e0d PC |
3447 | : _M_dataplus(__str._M_dataplus) |
3448 | { | |
d7a3ef97 | 3449 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
10154e0d PC |
3450 | __str._M_data(_S_empty_rep()._M_refdata()); |
3451 | #else | |
3452 | __str._M_data(_S_construct(size_type(), _CharT(), get_allocator())); | |
3453 | #endif | |
3454 | } | |
3455 | ||
988499f4 | 3456 | /** |
0d1141a3 | 3457 | * @brief Construct string from an initializer %list. |
93c66bc6 BK |
3458 | * @param __l std::initializer_list of characters. |
3459 | * @param __a Allocator to use (default is default allocator). | |
988499f4 JM |
3460 | */ |
3461 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()); | |
734f5023 | 3462 | #endif // C++11 |
988499f4 | 3463 | |
284f19bf JQ |
3464 | /** |
3465 | * @brief Construct string as copy of a range. | |
93c66bc6 BK |
3466 | * @param __beg Start of range. |
3467 | * @param __end End of range. | |
3468 | * @param __a Allocator to use (default is default allocator). | |
284f19bf | 3469 | */ |
725dc051 | 3470 | template<class _InputIterator> |
9a304d17 | 3471 | basic_string(_InputIterator __beg, _InputIterator __end, |
725dc051 BK |
3472 | const _Alloc& __a = _Alloc()); |
3473 | ||
92daf2de JW |
3474 | #if __cplusplus > 201402L |
3475 | /** | |
3476 | * @brief Construct string from a substring of a string_view. | |
3477 | * @param __t Source string view. | |
3478 | * @param __pos The index of the first character to copy from __t. | |
3479 | * @param __n The number of characters to copy from __t. | |
3480 | * @param __a Allocator to use. | |
3481 | */ | |
3482 | template<typename _Tp, typename = _If_sv<_Tp, void>> | |
3483 | basic_string(const _Tp& __t, size_type __pos, size_type __n, | |
3484 | const _Alloc& __a = _Alloc()) | |
3485 | : basic_string(__sv_type(__t).substr(__pos, __n), __a) { } | |
3486 | ||
3487 | /** | |
3488 | * @brief Construct string from a string_view. | |
3489 | * @param __sv Source string view. | |
3490 | * @param __a Allocator to use (default is default allocator). | |
3491 | */ | |
3492 | explicit | |
3493 | basic_string(__sv_type __sv, const _Alloc& __a = _Alloc()) | |
3494 | : basic_string(__sv.data(), __sv.size(), __a) { } | |
3495 | #endif // C++17 | |
3496 | ||
284f19bf JQ |
3497 | /** |
3498 | * @brief Destroy the string instance. | |
3499 | */ | |
6f59ea25 | 3500 | ~basic_string() _GLIBCXX_NOEXCEPT |
725dc051 BK |
3501 | { _M_rep()->_M_dispose(this->get_allocator()); } |
3502 | ||
284f19bf JQ |
3503 | /** |
3504 | * @brief Assign the value of @a str to this string. | |
93c66bc6 | 3505 | * @param __str Source string. |
284f19bf | 3506 | */ |
51122a42 | 3507 | basic_string& |
26c691a8 | 3508 | operator=(const basic_string& __str) |
75f29cdd | 3509 | { return this->assign(__str); } |
725dc051 | 3510 | |
284f19bf JQ |
3511 | /** |
3512 | * @brief Copy contents of @a s into this string. | |
93c66bc6 | 3513 | * @param __s Source null-terminated string. |
284f19bf | 3514 | */ |
51122a42 | 3515 | basic_string& |
26c691a8 | 3516 | operator=(const _CharT* __s) |
75f29cdd | 3517 | { return this->assign(__s); } |
725dc051 | 3518 | |
284f19bf JQ |
3519 | /** |
3520 | * @brief Set value to string of length 1. | |
93c66bc6 | 3521 | * @param __c Source character. |
284f19bf JQ |
3522 | * |
3523 | * Assigning to a character makes this string length 1 and | |
3524 | * (*this)[0] == @a c. | |
3525 | */ | |
51122a42 | 3526 | basic_string& |
26c691a8 BK |
3527 | operator=(_CharT __c) |
3528 | { | |
3529 | this->assign(1, __c); | |
3530 | return *this; | |
3531 | } | |
725dc051 | 3532 | |
734f5023 | 3533 | #if __cplusplus >= 201103L |
10154e0d PC |
3534 | /** |
3535 | * @brief Move assign the value of @a str to this string. | |
93c66bc6 | 3536 | * @param __str Source string. |
10154e0d PC |
3537 | * |
3538 | * The contents of @a str are moved into this string (without copying). | |
3539 | * @a str is a valid, but unspecified string. | |
3540 | **/ | |
63ebd8f1 | 3541 | // PR 58265, this should be noexcept. |
10154e0d PC |
3542 | basic_string& |
3543 | operator=(basic_string&& __str) | |
3544 | { | |
3545 | // NB: DR 1204. | |
3546 | this->swap(__str); | |
3547 | return *this; | |
3548 | } | |
3549 | ||
988499f4 | 3550 | /** |
0d1141a3 | 3551 | * @brief Set value to string constructed from initializer %list. |
93c66bc6 | 3552 | * @param __l std::initializer_list. |
988499f4 JM |
3553 | */ |
3554 | basic_string& | |
3555 | operator=(initializer_list<_CharT> __l) | |
3556 | { | |
5cab7013 | 3557 | this->assign(__l.begin(), __l.size()); |
988499f4 JM |
3558 | return *this; |
3559 | } | |
734f5023 | 3560 | #endif // C++11 |
988499f4 | 3561 | |
92daf2de JW |
3562 | #if __cplusplus > 201402L |
3563 | /** | |
3564 | * @brief Set value to string constructed from a string_view. | |
3565 | * @param __sv A string_view. | |
3566 | */ | |
4f83482f JW |
3567 | template<typename _Tp> |
3568 | _If_sv<_Tp, basic_string&> | |
3569 | operator=(_Tp __sv) | |
3570 | { return this->assign(__sv); } | |
92daf2de JW |
3571 | |
3572 | /** | |
3573 | * @brief Convert to a string_view. | |
3574 | * @return A string_view. | |
3575 | */ | |
3576 | operator __sv_type() const noexcept | |
3577 | { return __sv_type(data(), size()); } | |
3578 | #endif // C++17 | |
3579 | ||
725dc051 | 3580 | // Iterators: |
284f19bf JQ |
3581 | /** |
3582 | * Returns a read/write iterator that points to the first character in | |
3583 | * the %string. Unshares the string. | |
3584 | */ | |
51122a42 | 3585 | iterator |
63ebd8f1 | 3586 | begin() // FIXME C++11: should be noexcept. |
51122a42 PE |
3587 | { |
3588 | _M_leak(); | |
725dc051 BK |
3589 | return iterator(_M_data()); |
3590 | } | |
3591 | ||
284f19bf JQ |
3592 | /** |
3593 | * Returns a read-only (constant) iterator that points to the first | |
3594 | * character in the %string. | |
3595 | */ | |
51122a42 | 3596 | const_iterator |
cea8c6de | 3597 | begin() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3598 | { return const_iterator(_M_data()); } |
3599 | ||
284f19bf JQ |
3600 | /** |
3601 | * Returns a read/write iterator that points one past the last | |
3602 | * character in the %string. Unshares the string. | |
3603 | */ | |
51122a42 | 3604 | iterator |
63ebd8f1 | 3605 | end() // FIXME C++11: should be noexcept. |
725dc051 | 3606 | { |
7778fa6e PC |
3607 | _M_leak(); |
3608 | return iterator(_M_data() + this->size()); | |
725dc051 BK |
3609 | } |
3610 | ||
284f19bf JQ |
3611 | /** |
3612 | * Returns a read-only (constant) iterator that points one past the | |
3613 | * last character in the %string. | |
3614 | */ | |
51122a42 | 3615 | const_iterator |
cea8c6de | 3616 | end() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3617 | { return const_iterator(_M_data() + this->size()); } |
3618 | ||
284f19bf JQ |
3619 | /** |
3620 | * Returns a read/write reverse iterator that points to the last | |
3621 | * character in the %string. Iteration is done in reverse element | |
3622 | * order. Unshares the string. | |
3623 | */ | |
51122a42 | 3624 | reverse_iterator |
63ebd8f1 | 3625 | rbegin() // FIXME C++11: should be noexcept. |
725dc051 BK |
3626 | { return reverse_iterator(this->end()); } |
3627 | ||
284f19bf JQ |
3628 | /** |
3629 | * Returns a read-only (constant) reverse iterator that points | |
3630 | * to the last character in the %string. Iteration is done in | |
3631 | * reverse element order. | |
3632 | */ | |
51122a42 | 3633 | const_reverse_iterator |
cea8c6de | 3634 | rbegin() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3635 | { return const_reverse_iterator(this->end()); } |
3636 | ||
284f19bf JQ |
3637 | /** |
3638 | * Returns a read/write reverse iterator that points to one before the | |
3639 | * first character in the %string. Iteration is done in reverse | |
3640 | * element order. Unshares the string. | |
3641 | */ | |
51122a42 | 3642 | reverse_iterator |
63ebd8f1 | 3643 | rend() // FIXME C++11: should be noexcept. |
725dc051 BK |
3644 | { return reverse_iterator(this->begin()); } |
3645 | ||
284f19bf JQ |
3646 | /** |
3647 | * Returns a read-only (constant) reverse iterator that points | |
3648 | * to one before the first character in the %string. Iteration | |
3649 | * is done in reverse element order. | |
3650 | */ | |
51122a42 | 3651 | const_reverse_iterator |
cea8c6de | 3652 | rend() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3653 | { return const_reverse_iterator(this->begin()); } |
3654 | ||
734f5023 | 3655 | #if __cplusplus >= 201103L |
439a0f5a BK |
3656 | /** |
3657 | * Returns a read-only (constant) iterator that points to the first | |
3658 | * character in the %string. | |
3659 | */ | |
3660 | const_iterator | |
cea8c6de | 3661 | cbegin() const noexcept |
439a0f5a BK |
3662 | { return const_iterator(this->_M_data()); } |
3663 | ||
3664 | /** | |
3665 | * Returns a read-only (constant) iterator that points one past the | |
3666 | * last character in the %string. | |
3667 | */ | |
3668 | const_iterator | |
cea8c6de | 3669 | cend() const noexcept |
439a0f5a BK |
3670 | { return const_iterator(this->_M_data() + this->size()); } |
3671 | ||
3672 | /** | |
3673 | * Returns a read-only (constant) reverse iterator that points | |
3674 | * to the last character in the %string. Iteration is done in | |
3675 | * reverse element order. | |
3676 | */ | |
3677 | const_reverse_iterator | |
cea8c6de | 3678 | crbegin() const noexcept |
439a0f5a BK |
3679 | { return const_reverse_iterator(this->end()); } |
3680 | ||
3681 | /** | |
3682 | * Returns a read-only (constant) reverse iterator that points | |
3683 | * to one before the first character in the %string. Iteration | |
3684 | * is done in reverse element order. | |
3685 | */ | |
3686 | const_reverse_iterator | |
cea8c6de | 3687 | crend() const noexcept |
439a0f5a BK |
3688 | { return const_reverse_iterator(this->begin()); } |
3689 | #endif | |
3690 | ||
725dc051 BK |
3691 | public: |
3692 | // Capacity: | |
284f19bf JQ |
3693 | /// Returns the number of characters in the string, not including any |
3694 | /// null-termination. | |
51122a42 | 3695 | size_type |
cea8c6de | 3696 | size() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3697 | { return _M_rep()->_M_length; } |
725dc051 | 3698 | |
284f19bf JQ |
3699 | /// Returns the number of characters in the string, not including any |
3700 | /// null-termination. | |
51122a42 | 3701 | size_type |
cea8c6de | 3702 | length() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3703 | { return _M_rep()->_M_length; } |
725dc051 | 3704 | |
79667f82 | 3705 | /// Returns the size() of the largest possible %string. |
51122a42 | 3706 | size_type |
cea8c6de | 3707 | max_size() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3708 | { return _Rep::_S_max_size; } |
725dc051 | 3709 | |
284f19bf JQ |
3710 | /** |
3711 | * @brief Resizes the %string to the specified number of characters. | |
93c66bc6 BK |
3712 | * @param __n Number of characters the %string should contain. |
3713 | * @param __c Character to fill any new elements. | |
284f19bf JQ |
3714 | * |
3715 | * This function will %resize the %string to the specified | |
3716 | * number of characters. If the number is smaller than the | |
3717 | * %string's current size the %string is truncated, otherwise | |
93c66bc6 | 3718 | * the %string is extended and new elements are %set to @a __c. |
284f19bf | 3719 | */ |
51122a42 | 3720 | void |
725dc051 BK |
3721 | resize(size_type __n, _CharT __c); |
3722 | ||
284f19bf JQ |
3723 | /** |
3724 | * @brief Resizes the %string to the specified number of characters. | |
93c66bc6 | 3725 | * @param __n Number of characters the %string should contain. |
284f19bf JQ |
3726 | * |
3727 | * This function will resize the %string to the specified length. If | |
3728 | * the new size is smaller than the %string's current size the %string | |
3729 | * is truncated, otherwise the %string is extended and new characters | |
3730 | * are default-constructed. For basic types such as char, this means | |
3731 | * setting them to 0. | |
3732 | */ | |
51122a42 | 3733 | void |
cc6e67d4 PC |
3734 | resize(size_type __n) |
3735 | { this->resize(__n, _CharT()); } | |
725dc051 | 3736 | |
734f5023 | 3737 | #if __cplusplus >= 201103L |
79667f82 PC |
3738 | /// A non-binding request to reduce capacity() to size(). |
3739 | void | |
d15ac9d9 | 3740 | shrink_to_fit() _GLIBCXX_NOEXCEPT |
79667f82 | 3741 | { |
99f04955 | 3742 | #if __cpp_exceptions |
8a752dfe FD |
3743 | if (capacity() > size()) |
3744 | { | |
99f04955 | 3745 | try |
8a752dfe | 3746 | { reserve(0); } |
99f04955 | 3747 | catch(...) |
8a752dfe FD |
3748 | { } |
3749 | } | |
561cfdec | 3750 | #endif |
79667f82 PC |
3751 | } |
3752 | #endif | |
3753 | ||
284f19bf JQ |
3754 | /** |
3755 | * Returns the total number of characters that the %string can hold | |
3756 | * before needing to allocate more memory. | |
3757 | */ | |
51122a42 | 3758 | size_type |
cea8c6de | 3759 | capacity() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3760 | { return _M_rep()->_M_capacity; } |
725dc051 | 3761 | |
284f19bf JQ |
3762 | /** |
3763 | * @brief Attempt to preallocate enough memory for specified number of | |
3764 | * characters. | |
93c66bc6 BK |
3765 | * @param __res_arg Number of characters required. |
3766 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). | |
284f19bf JQ |
3767 | * |
3768 | * This function attempts to reserve enough memory for the | |
3769 | * %string to hold the specified number of characters. If the | |
3770 | * number requested is more than max_size(), length_error is | |
3771 | * thrown. | |
3772 | * | |
3773 | * The advantage of this function is that if optimal code is a | |
3774 | * necessity and the user can determine the string length that will be | |
3775 | * required, the user can reserve the memory in %advance, and thus | |
3776 | * prevent a possible reallocation of memory and copying of %string | |
3777 | * data. | |
3778 | */ | |
51122a42 | 3779 | void |
725dc051 BK |
3780 | reserve(size_type __res_arg = 0); |
3781 | ||
284f19bf JQ |
3782 | /** |
3783 | * Erases the string, making it empty. | |
3784 | */ | |
13190419 JW |
3785 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
3786 | void | |
3787 | clear() _GLIBCXX_NOEXCEPT | |
3788 | { | |
3789 | if (_M_rep()->_M_is_shared()) | |
3790 | { | |
3791 | _M_rep()->_M_dispose(this->get_allocator()); | |
3792 | _M_data(_S_empty_rep()._M_refdata()); | |
3793 | } | |
3794 | else | |
3795 | _M_rep()->_M_set_length_and_sharable(0); | |
3796 | } | |
3797 | #else | |
d15ac9d9 | 3798 | // PR 56166: this should not throw. |
51122a42 | 3799 | void |
63ebd8f1 | 3800 | clear() |
cc6e67d4 | 3801 | { _M_mutate(0, this->size(), 0); } |
13190419 | 3802 | #endif |
725dc051 | 3803 | |
284f19bf | 3804 | /** |
2a60a9f6 BK |
3805 | * Returns true if the %string is empty. Equivalent to |
3806 | * <code>*this == ""</code>. | |
284f19bf | 3807 | */ |
51122a42 | 3808 | bool |
cea8c6de | 3809 | empty() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3810 | { return this->size() == 0; } |
725dc051 BK |
3811 | |
3812 | // Element access: | |
284f19bf JQ |
3813 | /** |
3814 | * @brief Subscript access to the data contained in the %string. | |
93c66bc6 | 3815 | * @param __pos The index of the character to access. |
284f19bf JQ |
3816 | * @return Read-only (constant) reference to the character. |
3817 | * | |
3818 | * This operator allows for easy, array-style, data access. | |
3819 | * Note that data access with this operator is unchecked and | |
3820 | * out_of_range lookups are not defined. (For checked lookups | |
3821 | * see at().) | |
3822 | */ | |
51122a42 | 3823 | const_reference |
d15ac9d9 | 3824 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT |
ed6814f7 | 3825 | { |
2f1e8e7c | 3826 | __glibcxx_assert(__pos <= size()); |
ed6814f7 | 3827 | return _M_data()[__pos]; |
285b36d6 | 3828 | } |
725dc051 | 3829 | |
284f19bf JQ |
3830 | /** |
3831 | * @brief Subscript access to the data contained in the %string. | |
93c66bc6 | 3832 | * @param __pos The index of the character to access. |
284f19bf JQ |
3833 | * @return Read/write reference to the character. |
3834 | * | |
3835 | * This operator allows for easy, array-style, data access. | |
3836 | * Note that data access with this operator is unchecked and | |
3837 | * out_of_range lookups are not defined. (For checked lookups | |
3838 | * see at().) Unshares the string. | |
3839 | */ | |
51122a42 PE |
3840 | reference |
3841 | operator[](size_type __pos) | |
3842 | { | |
56b5d3b4 PC |
3843 | // Allow pos == size() both in C++98 mode, as v3 extension, |
3844 | // and in C++11 mode. | |
2f1e8e7c | 3845 | __glibcxx_assert(__pos <= size()); |
56b5d3b4 PC |
3846 | // In pedantic mode be strict in C++98 mode. |
3847 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); | |
51122a42 PE |
3848 | _M_leak(); |
3849 | return _M_data()[__pos]; | |
725dc051 BK |
3850 | } |
3851 | ||
284f19bf JQ |
3852 | /** |
3853 | * @brief Provides access to the data contained in the %string. | |
93c66bc6 | 3854 | * @param __n The index of the character to access. |
284f19bf JQ |
3855 | * @return Read-only (const) reference to the character. |
3856 | * @throw std::out_of_range If @a n is an invalid index. | |
3857 | * | |
3858 | * This function provides for safer data access. The parameter is | |
3859 | * first checked that it is in the range of the string. The function | |
3860 | * throws out_of_range if the check fails. | |
3861 | */ | |
51122a42 | 3862 | const_reference |
725dc051 BK |
3863 | at(size_type __n) const |
3864 | { | |
e2c09482 | 3865 | if (__n >= this->size()) |
9779c871 PP |
3866 | __throw_out_of_range_fmt(__N("basic_string::at: __n " |
3867 | "(which is %zu) >= this->size() " | |
3868 | "(which is %zu)"), | |
3869 | __n, this->size()); | |
51122a42 | 3870 | return _M_data()[__n]; |
725dc051 BK |
3871 | } |
3872 | ||
f1e09f0d JW |
3873 | /** |
3874 | * @brief Provides access to the data contained in the %string. | |
3875 | * @param __n The index of the character to access. | |
3876 | * @return Read/write reference to the character. | |
3877 | * @throw std::out_of_range If @a n is an invalid index. | |
3878 | * | |
3879 | * This function provides for safer data access. The parameter is | |
3880 | * first checked that it is in the range of the string. The function | |
3881 | * throws out_of_range if the check fails. Success results in | |
3882 | * unsharing the string. | |
3883 | */ | |
3884 | reference | |
3885 | at(size_type __n) | |
3886 | { | |
3887 | if (__n >= size()) | |
9779c871 PP |
3888 | __throw_out_of_range_fmt(__N("basic_string::at: __n " |
3889 | "(which is %zu) >= this->size() " | |
3890 | "(which is %zu)"), | |
3891 | __n, this->size()); | |
f1e09f0d JW |
3892 | _M_leak(); |
3893 | return _M_data()[__n]; | |
3894 | } | |
3895 | ||
734f5023 | 3896 | #if __cplusplus >= 201103L |
1e2c0906 PC |
3897 | /** |
3898 | * Returns a read/write reference to the data at the first | |
3899 | * element of the %string. | |
3900 | */ | |
3901 | reference | |
3902 | front() | |
e25d2617 | 3903 | { |
2f1e8e7c | 3904 | __glibcxx_assert(!empty()); |
e25d2617 FD |
3905 | return operator[](0); |
3906 | } | |
1e2c0906 PC |
3907 | |
3908 | /** | |
3909 | * Returns a read-only (constant) reference to the data at the first | |
3910 | * element of the %string. | |
3911 | */ | |
3912 | const_reference | |
783aa06e | 3913 | front() const noexcept |
e25d2617 | 3914 | { |
2f1e8e7c | 3915 | __glibcxx_assert(!empty()); |
e25d2617 FD |
3916 | return operator[](0); |
3917 | } | |
1e2c0906 PC |
3918 | |
3919 | /** | |
3920 | * Returns a read/write reference to the data at the last | |
3921 | * element of the %string. | |
3922 | */ | |
3923 | reference | |
3924 | back() | |
e25d2617 | 3925 | { |
2f1e8e7c | 3926 | __glibcxx_assert(!empty()); |
e25d2617 FD |
3927 | return operator[](this->size() - 1); |
3928 | } | |
1e2c0906 PC |
3929 | |
3930 | /** | |
3931 | * Returns a read-only (constant) reference to the data at the | |
3932 | * last element of the %string. | |
3933 | */ | |
3934 | const_reference | |
783aa06e | 3935 | back() const noexcept |
e25d2617 | 3936 | { |
2f1e8e7c | 3937 | __glibcxx_assert(!empty()); |
e25d2617 FD |
3938 | return operator[](this->size() - 1); |
3939 | } | |
1e2c0906 PC |
3940 | #endif |
3941 | ||
725dc051 | 3942 | // Modifiers: |
284f19bf JQ |
3943 | /** |
3944 | * @brief Append a string to this string. | |
93c66bc6 | 3945 | * @param __str The string to append. |
284f19bf JQ |
3946 | * @return Reference to this string. |
3947 | */ | |
51122a42 | 3948 | basic_string& |
cc6e67d4 PC |
3949 | operator+=(const basic_string& __str) |
3950 | { return this->append(__str); } | |
725dc051 | 3951 | |
284f19bf JQ |
3952 | /** |
3953 | * @brief Append a C string. | |
93c66bc6 | 3954 | * @param __s The C string to append. |
284f19bf JQ |
3955 | * @return Reference to this string. |
3956 | */ | |
51122a42 | 3957 | basic_string& |
cc6e67d4 PC |
3958 | operator+=(const _CharT* __s) |
3959 | { return this->append(__s); } | |
725dc051 | 3960 | |
284f19bf JQ |
3961 | /** |
3962 | * @brief Append a character. | |
93c66bc6 | 3963 | * @param __c The character to append. |
284f19bf JQ |
3964 | * @return Reference to this string. |
3965 | */ | |
51122a42 | 3966 | basic_string& |
cc6e67d4 | 3967 | operator+=(_CharT __c) |
ec61e852 PC |
3968 | { |
3969 | this->push_back(__c); | |
3970 | return *this; | |
3971 | } | |
725dc051 | 3972 | |
734f5023 | 3973 | #if __cplusplus >= 201103L |
988499f4 JM |
3974 | /** |
3975 | * @brief Append an initializer_list of characters. | |
93c66bc6 | 3976 | * @param __l The initializer_list of characters to be appended. |
988499f4 JM |
3977 | * @return Reference to this string. |
3978 | */ | |
3979 | basic_string& | |
3980 | operator+=(initializer_list<_CharT> __l) | |
5cab7013 | 3981 | { return this->append(__l.begin(), __l.size()); } |
734f5023 | 3982 | #endif // C++11 |
988499f4 | 3983 | |
92daf2de JW |
3984 | #if __cplusplus > 201402L |
3985 | /** | |
3986 | * @brief Append a string_view. | |
3987 | * @param __sv The string_view to be appended. | |
3988 | * @return Reference to this string. | |
3989 | */ | |
3990 | basic_string& | |
3991 | operator+=(__sv_type __sv) | |
3992 | { return this->append(__sv); } | |
3993 | #endif // C++17 | |
3994 | ||
284f19bf JQ |
3995 | /** |
3996 | * @brief Append a string to this string. | |
93c66bc6 | 3997 | * @param __str The string to append. |
284f19bf JQ |
3998 | * @return Reference to this string. |
3999 | */ | |
51122a42 | 4000 | basic_string& |
ab4375af | 4001 | append(const basic_string& __str); |
725dc051 | 4002 | |
284f19bf JQ |
4003 | /** |
4004 | * @brief Append a substring. | |
93c66bc6 BK |
4005 | * @param __str The string to append. |
4006 | * @param __pos Index of the first character of str to append. | |
4007 | * @param __n The number of characters to append. | |
284f19bf | 4008 | * @return Reference to this string. |
93c66bc6 | 4009 | * @throw std::out_of_range if @a __pos is not a valid index. |
284f19bf | 4010 | * |
93c66bc6 BK |
4011 | * This function appends @a __n characters from @a __str |
4012 | * starting at @a __pos to this string. If @a __n is is larger | |
4013 | * than the number of available characters in @a __str, the | |
4014 | * remainder of @a __str is appended. | |
284f19bf | 4015 | */ |
51122a42 | 4016 | basic_string& |
725dc051 BK |
4017 | append(const basic_string& __str, size_type __pos, size_type __n); |
4018 | ||
284f19bf JQ |
4019 | /** |
4020 | * @brief Append a C substring. | |
93c66bc6 BK |
4021 | * @param __s The C string to append. |
4022 | * @param __n The number of characters to append. | |
284f19bf JQ |
4023 | * @return Reference to this string. |
4024 | */ | |
51122a42 | 4025 | basic_string& |
725dc051 BK |
4026 | append(const _CharT* __s, size_type __n); |
4027 | ||
284f19bf JQ |
4028 | /** |
4029 | * @brief Append a C string. | |
93c66bc6 | 4030 | * @param __s The C string to append. |
284f19bf JQ |
4031 | * @return Reference to this string. |
4032 | */ | |
51122a42 | 4033 | basic_string& |
725dc051 | 4034 | append(const _CharT* __s) |
ed6814f7 | 4035 | { |
285b36d6 | 4036 | __glibcxx_requires_string(__s); |
ed6814f7 | 4037 | return this->append(__s, traits_type::length(__s)); |
285b36d6 | 4038 | } |
725dc051 | 4039 | |
284f19bf JQ |
4040 | /** |
4041 | * @brief Append multiple characters. | |
93c66bc6 BK |
4042 | * @param __n The number of characters to append. |
4043 | * @param __c The character to use. | |
284f19bf JQ |
4044 | * @return Reference to this string. |
4045 | * | |
93c66bc6 | 4046 | * Appends __n copies of __c to this string. |
284f19bf | 4047 | */ |
51122a42 | 4048 | basic_string& |
ab4375af | 4049 | append(size_type __n, _CharT __c); |
725dc051 | 4050 | |
734f5023 | 4051 | #if __cplusplus >= 201103L |
988499f4 JM |
4052 | /** |
4053 | * @brief Append an initializer_list of characters. | |
93c66bc6 | 4054 | * @param __l The initializer_list of characters to append. |
988499f4 JM |
4055 | * @return Reference to this string. |
4056 | */ | |
4057 | basic_string& | |
4058 | append(initializer_list<_CharT> __l) | |
5cab7013 | 4059 | { return this->append(__l.begin(), __l.size()); } |
734f5023 | 4060 | #endif // C++11 |
988499f4 | 4061 | |
284f19bf JQ |
4062 | /** |
4063 | * @brief Append a range of characters. | |
93c66bc6 BK |
4064 | * @param __first Iterator referencing the first character to append. |
4065 | * @param __last Iterator marking the end of the range. | |
284f19bf JQ |
4066 | * @return Reference to this string. |
4067 | * | |
93c66bc6 | 4068 | * Appends characters in the range [__first,__last) to this string. |
284f19bf | 4069 | */ |
725dc051 | 4070 | template<class _InputIterator> |
51122a42 | 4071 | basic_string& |
725dc051 BK |
4072 | append(_InputIterator __first, _InputIterator __last) |
4073 | { return this->replace(_M_iend(), _M_iend(), __first, __last); } | |
4074 | ||
92daf2de JW |
4075 | #if __cplusplus > 201402L |
4076 | /** | |
4077 | * @brief Append a string_view. | |
4078 | * @param __sv The string_view to be appended. | |
4079 | * @return Reference to this string. | |
4080 | */ | |
4081 | basic_string& | |
4082 | append(__sv_type __sv) | |
4083 | { return this->append(__sv.data(), __sv.size()); } | |
4084 | ||
4085 | /** | |
4086 | * @brief Append a range of characters from a string_view. | |
4087 | * @param __sv The string_view to be appended from. | |
4088 | * @param __pos The position in the string_view to append from. | |
4089 | * @param __n The number of characters to append from the string_view. | |
4090 | * @return Reference to this string. | |
4091 | */ | |
4092 | template <typename _Tp> | |
4093 | _If_sv<_Tp, basic_string&> | |
4094 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
4095 | { | |
4096 | __sv_type __sv = __svt; | |
4097 | return append(__sv.data() | |
4098 | + __sv._M_check(__pos, "basic_string::append"), | |
4099 | __sv._M_limit(__pos, __n)); | |
4100 | } | |
4101 | #endif // C++17 | |
4102 | ||
284f19bf JQ |
4103 | /** |
4104 | * @brief Append a single character. | |
93c66bc6 | 4105 | * @param __c Character to append. |
284f19bf | 4106 | */ |
51122a42 | 4107 | void |
725dc051 | 4108 | push_back(_CharT __c) |
ec61e852 PC |
4109 | { |
4110 | const size_type __len = 1 + this->size(); | |
4111 | if (__len > this->capacity() || _M_rep()->_M_is_shared()) | |
4112 | this->reserve(__len); | |
4113 | traits_type::assign(_M_data()[this->size()], __c); | |
4114 | _M_rep()->_M_set_length_and_sharable(__len); | |
4115 | } | |
725dc051 | 4116 | |
284f19bf JQ |
4117 | /** |
4118 | * @brief Set value to contents of another string. | |
93c66bc6 | 4119 | * @param __str Source string to use. |
284f19bf JQ |
4120 | * @return Reference to this string. |
4121 | */ | |
51122a42 | 4122 | basic_string& |
5536e07d | 4123 | assign(const basic_string& __str); |
725dc051 | 4124 | |
734f5023 | 4125 | #if __cplusplus >= 201103L |
10154e0d PC |
4126 | /** |
4127 | * @brief Set value to contents of another string. | |
93c66bc6 | 4128 | * @param __str Source string to use. |
10154e0d PC |
4129 | * @return Reference to this string. |
4130 | * | |
93c66bc6 BK |
4131 | * This function sets this string to the exact contents of @a __str. |
4132 | * @a __str is a valid, but unspecified string. | |
10154e0d | 4133 | */ |
63ebd8f1 | 4134 | // PR 58265, this should be noexcept. |
10154e0d PC |
4135 | basic_string& |
4136 | assign(basic_string&& __str) | |
4137 | { | |
4138 | this->swap(__str); | |
4139 | return *this; | |
4140 | } | |
734f5023 | 4141 | #endif // C++11 |
10154e0d | 4142 | |
284f19bf JQ |
4143 | /** |
4144 | * @brief Set value to a substring of a string. | |
93c66bc6 BK |
4145 | * @param __str The string to use. |
4146 | * @param __pos Index of the first character of str. | |
4147 | * @param __n Number of characters to use. | |
284f19bf JQ |
4148 | * @return Reference to this string. |
4149 | * @throw std::out_of_range if @a pos is not a valid index. | |
4150 | * | |
93c66bc6 BK |
4151 | * This function sets this string to the substring of @a __str |
4152 | * consisting of @a __n characters at @a __pos. If @a __n is | |
4153 | * is larger than the number of available characters in @a | |
4154 | * __str, the remainder of @a __str is used. | |
284f19bf | 4155 | */ |
51122a42 | 4156 | basic_string& |
fefe561e PC |
4157 | assign(const basic_string& __str, size_type __pos, size_type __n) |
4158 | { return this->assign(__str._M_data() | |
4159 | + __str._M_check(__pos, "basic_string::assign"), | |
4160 | __str._M_limit(__pos, __n)); } | |
725dc051 | 4161 | |
284f19bf JQ |
4162 | /** |
4163 | * @brief Set value to a C substring. | |
93c66bc6 BK |
4164 | * @param __s The C string to use. |
4165 | * @param __n Number of characters to use. | |
284f19bf JQ |
4166 | * @return Reference to this string. |
4167 | * | |
93c66bc6 BK |
4168 | * This function sets the value of this string to the first @a __n |
4169 | * characters of @a __s. If @a __n is is larger than the number of | |
4170 | * available characters in @a __s, the remainder of @a __s is used. | |
284f19bf | 4171 | */ |
51122a42 | 4172 | basic_string& |
2d9d5235 | 4173 | assign(const _CharT* __s, size_type __n); |
725dc051 | 4174 | |
284f19bf JQ |
4175 | /** |
4176 | * @brief Set value to contents of a C string. | |
93c66bc6 | 4177 | * @param __s The C string to use. |
284f19bf JQ |
4178 | * @return Reference to this string. |
4179 | * | |
93c66bc6 BK |
4180 | * This function sets the value of this string to the value of @a __s. |
4181 | * The data is copied, so there is no dependence on @a __s once the | |
284f19bf JQ |
4182 | * function returns. |
4183 | */ | |
51122a42 | 4184 | basic_string& |
725dc051 | 4185 | assign(const _CharT* __s) |
ed6814f7 | 4186 | { |
285b36d6 | 4187 | __glibcxx_requires_string(__s); |
ed6814f7 | 4188 | return this->assign(__s, traits_type::length(__s)); |
285b36d6 | 4189 | } |
725dc051 | 4190 | |
284f19bf JQ |
4191 | /** |
4192 | * @brief Set value to multiple characters. | |
93c66bc6 BK |
4193 | * @param __n Length of the resulting string. |
4194 | * @param __c The character to use. | |
284f19bf JQ |
4195 | * @return Reference to this string. |
4196 | * | |
93c66bc6 BK |
4197 | * This function sets the value of this string to @a __n copies of |
4198 | * character @a __c. | |
284f19bf | 4199 | */ |
51122a42 | 4200 | basic_string& |
725dc051 | 4201 | assign(size_type __n, _CharT __c) |
7bb9b33b | 4202 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } |
725dc051 | 4203 | |
284f19bf JQ |
4204 | /** |
4205 | * @brief Set value to a range of characters. | |
93c66bc6 BK |
4206 | * @param __first Iterator referencing the first character to append. |
4207 | * @param __last Iterator marking the end of the range. | |
284f19bf JQ |
4208 | * @return Reference to this string. |
4209 | * | |
93c66bc6 | 4210 | * Sets value of string to characters in the range [__first,__last). |
284f19bf | 4211 | */ |
725dc051 | 4212 | template<class _InputIterator> |
51122a42 | 4213 | basic_string& |
725dc051 BK |
4214 | assign(_InputIterator __first, _InputIterator __last) |
4215 | { return this->replace(_M_ibegin(), _M_iend(), __first, __last); } | |
4216 | ||
734f5023 | 4217 | #if __cplusplus >= 201103L |
988499f4 JM |
4218 | /** |
4219 | * @brief Set value to an initializer_list of characters. | |
93c66bc6 | 4220 | * @param __l The initializer_list of characters to assign. |
988499f4 JM |
4221 | * @return Reference to this string. |
4222 | */ | |
4223 | basic_string& | |
4224 | assign(initializer_list<_CharT> __l) | |
5cab7013 | 4225 | { return this->assign(__l.begin(), __l.size()); } |
734f5023 | 4226 | #endif // C++11 |
988499f4 | 4227 | |
92daf2de JW |
4228 | #if __cplusplus > 201402L |
4229 | /** | |
4230 | * @brief Set value from a string_view. | |
4231 | * @param __sv The source string_view. | |
4232 | * @return Reference to this string. | |
4233 | */ | |
4234 | basic_string& | |
4235 | assign(__sv_type __sv) | |
4236 | { return this->assign(__sv.data(), __sv.size()); } | |
4237 | ||
4238 | /** | |
4239 | * @brief Set value from a range of characters in a string_view. | |
4240 | * @param __sv The source string_view. | |
4241 | * @param __pos The position in the string_view to assign from. | |
4242 | * @param __n The number of characters to assign. | |
4243 | * @return Reference to this string. | |
4244 | */ | |
4245 | template <typename _Tp> | |
4246 | _If_sv<_Tp, basic_string&> | |
4247 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
4248 | { | |
4249 | __sv_type __sv = __svt; | |
4250 | return assign(__sv.data() | |
4251 | + __sv._M_check(__pos, "basic_string::assign"), | |
4252 | __sv._M_limit(__pos, __n)); | |
4253 | } | |
4254 | #endif // C++17 | |
4255 | ||
284f19bf JQ |
4256 | /** |
4257 | * @brief Insert multiple characters. | |
93c66bc6 BK |
4258 | * @param __p Iterator referencing location in string to insert at. |
4259 | * @param __n Number of characters to insert | |
4260 | * @param __c The character to insert. | |
284f19bf JQ |
4261 | * @throw std::length_error If new length exceeds @c max_size(). |
4262 | * | |
93c66bc6 BK |
4263 | * Inserts @a __n copies of character @a __c starting at the |
4264 | * position referenced by iterator @a __p. If adding | |
4265 | * characters causes the length to exceed max_size(), | |
4266 | * length_error is thrown. The value of the string doesn't | |
4267 | * change if an error is thrown. | |
284f19bf | 4268 | */ |
51122a42 | 4269 | void |
725dc051 BK |
4270 | insert(iterator __p, size_type __n, _CharT __c) |
4271 | { this->replace(__p, __p, __n, __c); } | |
4272 | ||
284f19bf JQ |
4273 | /** |
4274 | * @brief Insert a range of characters. | |
93c66bc6 BK |
4275 | * @param __p Iterator referencing location in string to insert at. |
4276 | * @param __beg Start of range. | |
4277 | * @param __end End of range. | |
284f19bf JQ |
4278 | * @throw std::length_error If new length exceeds @c max_size(). |
4279 | * | |
93c66bc6 BK |
4280 | * Inserts characters in range [__beg,__end). If adding |
4281 | * characters causes the length to exceed max_size(), | |
4282 | * length_error is thrown. The value of the string doesn't | |
4283 | * change if an error is thrown. | |
284f19bf | 4284 | */ |
725dc051 | 4285 | template<class _InputIterator> |
ec61e852 PC |
4286 | void |
4287 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) | |
725dc051 BK |
4288 | { this->replace(__p, __p, __beg, __end); } |
4289 | ||
734f5023 | 4290 | #if __cplusplus >= 201103L |
988499f4 JM |
4291 | /** |
4292 | * @brief Insert an initializer_list of characters. | |
93c66bc6 BK |
4293 | * @param __p Iterator referencing location in string to insert at. |
4294 | * @param __l The initializer_list of characters to insert. | |
988499f4 JM |
4295 | * @throw std::length_error If new length exceeds @c max_size(). |
4296 | */ | |
4297 | void | |
4298 | insert(iterator __p, initializer_list<_CharT> __l) | |
5cab7013 PC |
4299 | { |
4300 | _GLIBCXX_DEBUG_PEDASSERT(__p >= _M_ibegin() && __p <= _M_iend()); | |
4301 | this->insert(__p - _M_ibegin(), __l.begin(), __l.size()); | |
4302 | } | |
734f5023 | 4303 | #endif // C++11 |
988499f4 | 4304 | |
284f19bf JQ |
4305 | /** |
4306 | * @brief Insert value of a string. | |
93c66bc6 BK |
4307 | * @param __pos1 Iterator referencing location in string to insert at. |
4308 | * @param __str The string to insert. | |
284f19bf JQ |
4309 | * @return Reference to this string. |
4310 | * @throw std::length_error If new length exceeds @c max_size(). | |
4311 | * | |
93c66bc6 BK |
4312 | * Inserts value of @a __str starting at @a __pos1. If adding |
4313 | * characters causes the length to exceed max_size(), | |
4314 | * length_error is thrown. The value of the string doesn't | |
4315 | * change if an error is thrown. | |
284f19bf | 4316 | */ |
51122a42 | 4317 | basic_string& |
725dc051 | 4318 | insert(size_type __pos1, const basic_string& __str) |
0e707673 | 4319 | { return this->insert(__pos1, __str, size_type(0), __str.size()); } |
725dc051 | 4320 | |
284f19bf JQ |
4321 | /** |
4322 | * @brief Insert a substring. | |
93c66bc6 BK |
4323 | * @param __pos1 Iterator referencing location in string to insert at. |
4324 | * @param __str The string to insert. | |
4325 | * @param __pos2 Start of characters in str to insert. | |
4326 | * @param __n Number of characters to insert. | |
284f19bf JQ |
4327 | * @return Reference to this string. |
4328 | * @throw std::length_error If new length exceeds @c max_size(). | |
4329 | * @throw std::out_of_range If @a pos1 > size() or | |
93c66bc6 | 4330 | * @a __pos2 > @a str.size(). |
284f19bf | 4331 | * |
93c66bc6 BK |
4332 | * Starting at @a pos1, insert @a __n character of @a __str |
4333 | * beginning with @a __pos2. If adding characters causes the | |
4334 | * length to exceed max_size(), length_error is thrown. If @a | |
4335 | * __pos1 is beyond the end of this string or @a __pos2 is | |
4336 | * beyond the end of @a __str, out_of_range is thrown. The | |
4337 | * value of the string doesn't change if an error is thrown. | |
284f19bf | 4338 | */ |
51122a42 | 4339 | basic_string& |
725dc051 | 4340 | insert(size_type __pos1, const basic_string& __str, |
8865bf80 PC |
4341 | size_type __pos2, size_type __n) |
4342 | { return this->insert(__pos1, __str._M_data() | |
4343 | + __str._M_check(__pos2, "basic_string::insert"), | |
4344 | __str._M_limit(__pos2, __n)); } | |
725dc051 | 4345 | |
284f19bf JQ |
4346 | /** |
4347 | * @brief Insert a C substring. | |
93c66bc6 BK |
4348 | * @param __pos Iterator referencing location in string to insert at. |
4349 | * @param __s The C string to insert. | |
4350 | * @param __n The number of characters to insert. | |
284f19bf JQ |
4351 | * @return Reference to this string. |
4352 | * @throw std::length_error If new length exceeds @c max_size(). | |
93c66bc6 | 4353 | * @throw std::out_of_range If @a __pos is beyond the end of this |
ed6814f7 | 4354 | * string. |
284f19bf | 4355 | * |
93c66bc6 BK |
4356 | * Inserts the first @a __n characters of @a __s starting at @a |
4357 | * __pos. If adding characters causes the length to exceed | |
4358 | * max_size(), length_error is thrown. If @a __pos is beyond | |
4359 | * end(), out_of_range is thrown. The value of the string | |
4360 | * doesn't change if an error is thrown. | |
284f19bf | 4361 | */ |
51122a42 | 4362 | basic_string& |
2d9d5235 | 4363 | insert(size_type __pos, const _CharT* __s, size_type __n); |
725dc051 | 4364 | |
284f19bf JQ |
4365 | /** |
4366 | * @brief Insert a C string. | |
93c66bc6 BK |
4367 | * @param __pos Iterator referencing location in string to insert at. |
4368 | * @param __s The C string to insert. | |
284f19bf JQ |
4369 | * @return Reference to this string. |
4370 | * @throw std::length_error If new length exceeds @c max_size(). | |
4371 | * @throw std::out_of_range If @a pos is beyond the end of this | |
4372 | * string. | |
4373 | * | |
93c66bc6 | 4374 | * Inserts the first @a n characters of @a __s starting at @a __pos. If |
284f19bf | 4375 | * adding characters causes the length to exceed max_size(), |
93c66bc6 | 4376 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is |
284f19bf JQ |
4377 | * thrown. The value of the string doesn't change if an error is |
4378 | * thrown. | |
4379 | */ | |
51122a42 | 4380 | basic_string& |
725dc051 | 4381 | insert(size_type __pos, const _CharT* __s) |
ed6814f7 | 4382 | { |
285b36d6 | 4383 | __glibcxx_requires_string(__s); |
ed6814f7 | 4384 | return this->insert(__pos, __s, traits_type::length(__s)); |
285b36d6 | 4385 | } |
725dc051 | 4386 | |
284f19bf JQ |
4387 | /** |
4388 | * @brief Insert multiple characters. | |
93c66bc6 BK |
4389 | * @param __pos Index in string to insert at. |
4390 | * @param __n Number of characters to insert | |
4391 | * @param __c The character to insert. | |
284f19bf JQ |
4392 | * @return Reference to this string. |
4393 | * @throw std::length_error If new length exceeds @c max_size(). | |
93c66bc6 | 4394 | * @throw std::out_of_range If @a __pos is beyond the end of this |
284f19bf JQ |
4395 | * string. |
4396 | * | |
93c66bc6 BK |
4397 | * Inserts @a __n copies of character @a __c starting at index |
4398 | * @a __pos. If adding characters causes the length to exceed | |
4399 | * max_size(), length_error is thrown. If @a __pos > length(), | |
4400 | * out_of_range is thrown. The value of the string doesn't | |
4401 | * change if an error is thrown. | |
284f19bf | 4402 | */ |
51122a42 | 4403 | basic_string& |
725dc051 | 4404 | insert(size_type __pos, size_type __n, _CharT __c) |
0e707673 PC |
4405 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), |
4406 | size_type(0), __n, __c); } | |
725dc051 | 4407 | |
284f19bf JQ |
4408 | /** |
4409 | * @brief Insert one character. | |
93c66bc6 BK |
4410 | * @param __p Iterator referencing position in string to insert at. |
4411 | * @param __c The character to insert. | |
284f19bf JQ |
4412 | * @return Iterator referencing newly inserted char. |
4413 | * @throw std::length_error If new length exceeds @c max_size(). | |
284f19bf | 4414 | * |
93c66bc6 BK |
4415 | * Inserts character @a __c at position referenced by @a __p. |
4416 | * If adding character causes the length to exceed max_size(), | |
4417 | * length_error is thrown. If @a __p is beyond end of string, | |
4418 | * out_of_range is thrown. The value of the string doesn't | |
4419 | * change if an error is thrown. | |
284f19bf | 4420 | */ |
51122a42 | 4421 | iterator |
3988d179 | 4422 | insert(iterator __p, _CharT __c) |
725dc051 | 4423 | { |
285b36d6 | 4424 | _GLIBCXX_DEBUG_PEDASSERT(__p >= _M_ibegin() && __p <= _M_iend()); |
7778fa6e | 4425 | const size_type __pos = __p - _M_ibegin(); |
0e707673 | 4426 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); |
51122a42 | 4427 | _M_rep()->_M_set_leaked(); |
3af22b23 | 4428 | return iterator(_M_data() + __pos); |
725dc051 BK |
4429 | } |
4430 | ||
92daf2de JW |
4431 | #if __cplusplus > 201402L |
4432 | /** | |
4433 | * @brief Insert a string_view. | |
4434 | * @param __pos Iterator referencing position in string to insert at. | |
4435 | * @param __sv The string_view to insert. | |
4436 | * @return Reference to this string. | |
4437 | */ | |
4438 | basic_string& | |
4439 | insert(size_type __pos, __sv_type __sv) | |
4440 | { return this->insert(__pos, __sv.data(), __sv.size()); } | |
4441 | ||
4442 | /** | |
4443 | * @brief Insert a string_view. | |
4444 | * @param __pos Iterator referencing position in string to insert at. | |
4445 | * @param __sv The string_view to insert from. | |
4446 | * @param __pos Iterator referencing position in string_view to insert | |
4447 | * from. | |
4448 | * @param __n The number of characters to insert. | |
4449 | * @return Reference to this string. | |
4450 | */ | |
4451 | template <typename _Tp> | |
4452 | _If_sv<_Tp, basic_string&> | |
4453 | insert(size_type __pos1, const _Tp& __svt, | |
4454 | size_type __pos2, size_type __n = npos) | |
4455 | { | |
4456 | __sv_type __sv = __svt; | |
4457 | return this->replace(__pos1, size_type(0), __sv.data() | |
4458 | + __sv._M_check(__pos2, "basic_string::insert"), | |
4459 | __sv._M_limit(__pos2, __n)); | |
4460 | } | |
4461 | #endif // C++17 | |
4462 | ||
284f19bf JQ |
4463 | /** |
4464 | * @brief Remove characters. | |
93c66bc6 BK |
4465 | * @param __pos Index of first character to remove (default 0). |
4466 | * @param __n Number of characters to remove (default remainder). | |
284f19bf JQ |
4467 | * @return Reference to this string. |
4468 | * @throw std::out_of_range If @a pos is beyond the end of this | |
4469 | * string. | |
4470 | * | |
93c66bc6 BK |
4471 | * Removes @a __n characters from this string starting at @a |
4472 | * __pos. The length of the string is reduced by @a __n. If | |
4473 | * there are < @a __n characters to remove, the remainder of | |
4474 | * the string is truncated. If @a __p is beyond end of string, | |
4475 | * out_of_range is thrown. The value of the string doesn't | |
4476 | * change if an error is thrown. | |
284f19bf | 4477 | */ |
51122a42 | 4478 | basic_string& |
725dc051 | 4479 | erase(size_type __pos = 0, size_type __n = npos) |
a6cb7068 PC |
4480 | { |
4481 | _M_mutate(_M_check(__pos, "basic_string::erase"), | |
4482 | _M_limit(__pos, __n), size_type(0)); | |
4483 | return *this; | |
4484 | } | |
725dc051 | 4485 | |
284f19bf JQ |
4486 | /** |
4487 | * @brief Remove one character. | |
93c66bc6 | 4488 | * @param __position Iterator referencing the character to remove. |
284f19bf | 4489 | * @return iterator referencing same location after removal. |
284f19bf | 4490 | * |
93c66bc6 | 4491 | * Removes the character at @a __position from this string. The value |
284f19bf JQ |
4492 | * of the string doesn't change if an error is thrown. |
4493 | */ | |
51122a42 | 4494 | iterator |
725dc051 BK |
4495 | erase(iterator __position) |
4496 | { | |
ed6814f7 | 4497 | _GLIBCXX_DEBUG_PEDASSERT(__position >= _M_ibegin() |
285b36d6 | 4498 | && __position < _M_iend()); |
0e707673 | 4499 | const size_type __pos = __position - _M_ibegin(); |
a6cb7068 | 4500 | _M_mutate(__pos, size_type(1), size_type(0)); |
51122a42 | 4501 | _M_rep()->_M_set_leaked(); |
3af22b23 | 4502 | return iterator(_M_data() + __pos); |
725dc051 BK |
4503 | } |
4504 | ||
284f19bf JQ |
4505 | /** |
4506 | * @brief Remove a range of characters. | |
93c66bc6 BK |
4507 | * @param __first Iterator referencing the first character to remove. |
4508 | * @param __last Iterator referencing the end of the range. | |
284f19bf | 4509 | * @return Iterator referencing location of first after removal. |
284f19bf JQ |
4510 | * |
4511 | * Removes the characters in the range [first,last) from this string. | |
30f315cd | 4512 | * The value of the string doesn't change if an error is thrown. |
284f19bf | 4513 | */ |
51122a42 | 4514 | iterator |
7309083f PC |
4515 | erase(iterator __first, iterator __last); |
4516 | ||
734f5023 | 4517 | #if __cplusplus >= 201103L |
f1e09f0d JW |
4518 | /** |
4519 | * @brief Remove the last character. | |
4520 | * | |
4521 | * The string must be non-empty. | |
4522 | */ | |
4523 | void | |
63ebd8f1 | 4524 | pop_back() // FIXME C++11: should be noexcept. |
e25d2617 | 4525 | { |
2f1e8e7c | 4526 | __glibcxx_assert(!empty()); |
e25d2617 FD |
4527 | erase(size() - 1, 1); |
4528 | } | |
734f5023 | 4529 | #endif // C++11 |
f1e09f0d | 4530 | |
284f19bf JQ |
4531 | /** |
4532 | * @brief Replace characters with value from another string. | |
93c66bc6 BK |
4533 | * @param __pos Index of first character to replace. |
4534 | * @param __n Number of characters to be replaced. | |
4535 | * @param __str String to insert. | |
284f19bf JQ |
4536 | * @return Reference to this string. |
4537 | * @throw std::out_of_range If @a pos is beyond the end of this | |
ed6814f7 | 4538 | * string. |
284f19bf JQ |
4539 | * @throw std::length_error If new length exceeds @c max_size(). |
4540 | * | |
93c66bc6 BK |
4541 | * Removes the characters in the range [__pos,__pos+__n) from |
4542 | * this string. In place, the value of @a __str is inserted. | |
4543 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
4544 | * If the length of the result exceeds max_size(), length_error | |
4545 | * is thrown. The value of the string doesn't change if an | |
4546 | * error is thrown. | |
284f19bf | 4547 | */ |
51122a42 | 4548 | basic_string& |
725dc051 | 4549 | replace(size_type __pos, size_type __n, const basic_string& __str) |
c68cd521 | 4550 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
725dc051 | 4551 | |
284f19bf JQ |
4552 | /** |
4553 | * @brief Replace characters with value from another string. | |
93c66bc6 BK |
4554 | * @param __pos1 Index of first character to replace. |
4555 | * @param __n1 Number of characters to be replaced. | |
4556 | * @param __str String to insert. | |
4557 | * @param __pos2 Index of first character of str to use. | |
4558 | * @param __n2 Number of characters from str to use. | |
284f19bf | 4559 | * @return Reference to this string. |
93c66bc6 BK |
4560 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > |
4561 | * __str.size(). | |
284f19bf JQ |
4562 | * @throw std::length_error If new length exceeds @c max_size(). |
4563 | * | |
93c66bc6 BK |
4564 | * Removes the characters in the range [__pos1,__pos1 + n) from this |
4565 | * string. In place, the value of @a __str is inserted. If @a __pos is | |
284f19bf JQ |
4566 | * beyond end of string, out_of_range is thrown. If the length of the |
4567 | * result exceeds max_size(), length_error is thrown. The value of the | |
4568 | * string doesn't change if an error is thrown. | |
4569 | */ | |
51122a42 | 4570 | basic_string& |
725dc051 | 4571 | replace(size_type __pos1, size_type __n1, const basic_string& __str, |
fefe561e PC |
4572 | size_type __pos2, size_type __n2) |
4573 | { return this->replace(__pos1, __n1, __str._M_data() | |
4574 | + __str._M_check(__pos2, "basic_string::replace"), | |
4575 | __str._M_limit(__pos2, __n2)); } | |
725dc051 | 4576 | |
284f19bf JQ |
4577 | /** |
4578 | * @brief Replace characters with value of a C substring. | |
93c66bc6 BK |
4579 | * @param __pos Index of first character to replace. |
4580 | * @param __n1 Number of characters to be replaced. | |
4581 | * @param __s C string to insert. | |
4582 | * @param __n2 Number of characters from @a s to use. | |
284f19bf JQ |
4583 | * @return Reference to this string. |
4584 | * @throw std::out_of_range If @a pos1 > size(). | |
4585 | * @throw std::length_error If new length exceeds @c max_size(). | |
4586 | * | |
93c66bc6 BK |
4587 | * Removes the characters in the range [__pos,__pos + __n1) |
4588 | * from this string. In place, the first @a __n2 characters of | |
4589 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If | |
4590 | * @a __pos is beyond end of string, out_of_range is thrown. If | |
4591 | * the length of result exceeds max_size(), length_error is | |
4592 | * thrown. The value of the string doesn't change if an error | |
4593 | * is thrown. | |
284f19bf | 4594 | */ |
51122a42 | 4595 | basic_string& |
725dc051 | 4596 | replace(size_type __pos, size_type __n1, const _CharT* __s, |
2d9d5235 | 4597 | size_type __n2); |
725dc051 | 4598 | |
284f19bf JQ |
4599 | /** |
4600 | * @brief Replace characters with value of a C string. | |
93c66bc6 BK |
4601 | * @param __pos Index of first character to replace. |
4602 | * @param __n1 Number of characters to be replaced. | |
4603 | * @param __s C string to insert. | |
284f19bf JQ |
4604 | * @return Reference to this string. |
4605 | * @throw std::out_of_range If @a pos > size(). | |
4606 | * @throw std::length_error If new length exceeds @c max_size(). | |
4607 | * | |
93c66bc6 BK |
4608 | * Removes the characters in the range [__pos,__pos + __n1) |
4609 | * from this string. In place, the characters of @a __s are | |
4610 | * inserted. If @a __pos is beyond end of string, out_of_range | |
4611 | * is thrown. If the length of result exceeds max_size(), | |
4612 | * length_error is thrown. The value of the string doesn't | |
4613 | * change if an error is thrown. | |
284f19bf | 4614 | */ |
51122a42 | 4615 | basic_string& |
725dc051 | 4616 | replace(size_type __pos, size_type __n1, const _CharT* __s) |
ed6814f7 | 4617 | { |
285b36d6 | 4618 | __glibcxx_requires_string(__s); |
ed6814f7 | 4619 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); |
285b36d6 | 4620 | } |
725dc051 | 4621 | |
284f19bf JQ |
4622 | /** |
4623 | * @brief Replace characters with multiple characters. | |
93c66bc6 BK |
4624 | * @param __pos Index of first character to replace. |
4625 | * @param __n1 Number of characters to be replaced. | |
4626 | * @param __n2 Number of characters to insert. | |
4627 | * @param __c Character to insert. | |
284f19bf | 4628 | * @return Reference to this string. |
93c66bc6 | 4629 | * @throw std::out_of_range If @a __pos > size(). |
284f19bf JQ |
4630 | * @throw std::length_error If new length exceeds @c max_size(). |
4631 | * | |
93c66bc6 BK |
4632 | * Removes the characters in the range [pos,pos + n1) from this |
4633 | * string. In place, @a __n2 copies of @a __c are inserted. | |
4634 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
4635 | * If the length of result exceeds max_size(), length_error is | |
4636 | * thrown. The value of the string doesn't change if an error | |
4637 | * is thrown. | |
284f19bf | 4638 | */ |
51122a42 | 4639 | basic_string& |
725dc051 | 4640 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) |
0e707673 PC |
4641 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), |
4642 | _M_limit(__pos, __n1), __n2, __c); } | |
725dc051 | 4643 | |
284f19bf JQ |
4644 | /** |
4645 | * @brief Replace range of characters with string. | |
93c66bc6 BK |
4646 | * @param __i1 Iterator referencing start of range to replace. |
4647 | * @param __i2 Iterator referencing end of range to replace. | |
4648 | * @param __str String value to insert. | |
284f19bf JQ |
4649 | * @return Reference to this string. |
4650 | * @throw std::length_error If new length exceeds @c max_size(). | |
4651 | * | |
93c66bc6 BK |
4652 | * Removes the characters in the range [__i1,__i2). In place, |
4653 | * the value of @a __str is inserted. If the length of result | |
4654 | * exceeds max_size(), length_error is thrown. The value of | |
4655 | * the string doesn't change if an error is thrown. | |
284f19bf | 4656 | */ |
51122a42 | 4657 | basic_string& |
725dc051 | 4658 | replace(iterator __i1, iterator __i2, const basic_string& __str) |
4d39d873 | 4659 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
725dc051 | 4660 | |
284f19bf JQ |
4661 | /** |
4662 | * @brief Replace range of characters with C substring. | |
93c66bc6 BK |
4663 | * @param __i1 Iterator referencing start of range to replace. |
4664 | * @param __i2 Iterator referencing end of range to replace. | |
4665 | * @param __s C string value to insert. | |
4666 | * @param __n Number of characters from s to insert. | |
284f19bf JQ |
4667 | * @return Reference to this string. |
4668 | * @throw std::length_error If new length exceeds @c max_size(). | |
4669 | * | |
93c66bc6 BK |
4670 | * Removes the characters in the range [__i1,__i2). In place, |
4671 | * the first @a __n characters of @a __s are inserted. If the | |
4672 | * length of result exceeds max_size(), length_error is thrown. | |
4673 | * The value of the string doesn't change if an error is | |
4674 | * thrown. | |
284f19bf | 4675 | */ |
51122a42 | 4676 | basic_string& |
4d39d873 PC |
4677 | replace(iterator __i1, iterator __i2, const _CharT* __s, size_type __n) |
4678 | { | |
4679 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
ed6814f7 | 4680 | && __i2 <= _M_iend()); |
4d39d873 PC |
4681 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, __s, __n); |
4682 | } | |
725dc051 | 4683 | |
284f19bf JQ |
4684 | /** |
4685 | * @brief Replace range of characters with C string. | |
93c66bc6 BK |
4686 | * @param __i1 Iterator referencing start of range to replace. |
4687 | * @param __i2 Iterator referencing end of range to replace. | |
4688 | * @param __s C string value to insert. | |
284f19bf JQ |
4689 | * @return Reference to this string. |
4690 | * @throw std::length_error If new length exceeds @c max_size(). | |
4691 | * | |
93c66bc6 BK |
4692 | * Removes the characters in the range [__i1,__i2). In place, |
4693 | * the characters of @a __s are inserted. If the length of | |
4694 | * result exceeds max_size(), length_error is thrown. The | |
4695 | * value of the string doesn't change if an error is thrown. | |
284f19bf | 4696 | */ |
51122a42 | 4697 | basic_string& |
725dc051 | 4698 | replace(iterator __i1, iterator __i2, const _CharT* __s) |
ed6814f7 | 4699 | { |
285b36d6 | 4700 | __glibcxx_requires_string(__s); |
ed6814f7 | 4701 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); |
285b36d6 | 4702 | } |
725dc051 | 4703 | |
284f19bf JQ |
4704 | /** |
4705 | * @brief Replace range of characters with multiple characters | |
93c66bc6 BK |
4706 | * @param __i1 Iterator referencing start of range to replace. |
4707 | * @param __i2 Iterator referencing end of range to replace. | |
4708 | * @param __n Number of characters to insert. | |
4709 | * @param __c Character to insert. | |
284f19bf JQ |
4710 | * @return Reference to this string. |
4711 | * @throw std::length_error If new length exceeds @c max_size(). | |
4712 | * | |
93c66bc6 BK |
4713 | * Removes the characters in the range [__i1,__i2). In place, |
4714 | * @a __n copies of @a __c are inserted. If the length of | |
4715 | * result exceeds max_size(), length_error is thrown. The | |
4716 | * value of the string doesn't change if an error is thrown. | |
284f19bf | 4717 | */ |
51122a42 | 4718 | basic_string& |
bdb0f0f5 | 4719 | replace(iterator __i1, iterator __i2, size_type __n, _CharT __c) |
ed6814f7 | 4720 | { |
285b36d6 BK |
4721 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 |
4722 | && __i2 <= _M_iend()); | |
ed6814f7 | 4723 | return _M_replace_aux(__i1 - _M_ibegin(), __i2 - __i1, __n, __c); |
285b36d6 | 4724 | } |
725dc051 | 4725 | |
284f19bf JQ |
4726 | /** |
4727 | * @brief Replace range of characters with range. | |
93c66bc6 BK |
4728 | * @param __i1 Iterator referencing start of range to replace. |
4729 | * @param __i2 Iterator referencing end of range to replace. | |
4730 | * @param __k1 Iterator referencing start of range to insert. | |
4731 | * @param __k2 Iterator referencing end of range to insert. | |
284f19bf JQ |
4732 | * @return Reference to this string. |
4733 | * @throw std::length_error If new length exceeds @c max_size(). | |
4734 | * | |
93c66bc6 BK |
4735 | * Removes the characters in the range [__i1,__i2). In place, |
4736 | * characters in the range [__k1,__k2) are inserted. If the | |
4737 | * length of result exceeds max_size(), length_error is thrown. | |
4738 | * The value of the string doesn't change if an error is | |
4739 | * thrown. | |
284f19bf | 4740 | */ |
725dc051 | 4741 | template<class _InputIterator> |
51122a42 | 4742 | basic_string& |
725dc051 BK |
4743 | replace(iterator __i1, iterator __i2, |
4744 | _InputIterator __k1, _InputIterator __k2) | |
ed6814f7 | 4745 | { |
285b36d6 BK |
4746 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 |
4747 | && __i2 <= _M_iend()); | |
4748 | __glibcxx_requires_valid_range(__k1, __k2); | |
c0736a9d | 4749 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
ed6814f7 | 4750 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); |
285b36d6 | 4751 | } |
725dc051 | 4752 | |
418bb880 PC |
4753 | // Specializations for the common case of pointer and iterator: |
4754 | // useful to avoid the overhead of temporary buffering in _M_replace. | |
51122a42 | 4755 | basic_string& |
43da93a7 PC |
4756 | replace(iterator __i1, iterator __i2, _CharT* __k1, _CharT* __k2) |
4757 | { | |
4758 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
4759 | && __i2 <= _M_iend()); | |
4760 | __glibcxx_requires_valid_range(__k1, __k2); | |
4761 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
4762 | __k1, __k2 - __k1); | |
4763 | } | |
418bb880 | 4764 | |
51122a42 | 4765 | basic_string& |
43da93a7 PC |
4766 | replace(iterator __i1, iterator __i2, |
4767 | const _CharT* __k1, const _CharT* __k2) | |
4768 | { | |
4769 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
4770 | && __i2 <= _M_iend()); | |
4771 | __glibcxx_requires_valid_range(__k1, __k2); | |
4772 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
4773 | __k1, __k2 - __k1); | |
4774 | } | |
418bb880 | 4775 | |
51122a42 | 4776 | basic_string& |
43da93a7 PC |
4777 | replace(iterator __i1, iterator __i2, iterator __k1, iterator __k2) |
4778 | { | |
4779 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
4780 | && __i2 <= _M_iend()); | |
4781 | __glibcxx_requires_valid_range(__k1, __k2); | |
4782 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
4783 | __k1.base(), __k2 - __k1); | |
4784 | } | |
418bb880 | 4785 | |
51122a42 | 4786 | basic_string& |
43da93a7 PC |
4787 | replace(iterator __i1, iterator __i2, |
4788 | const_iterator __k1, const_iterator __k2) | |
4789 | { | |
4790 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
4791 | && __i2 <= _M_iend()); | |
4792 | __glibcxx_requires_valid_range(__k1, __k2); | |
4793 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
4794 | __k1.base(), __k2 - __k1); | |
4795 | } | |
4796 | ||
734f5023 | 4797 | #if __cplusplus >= 201103L |
988499f4 JM |
4798 | /** |
4799 | * @brief Replace range of characters with initializer_list. | |
93c66bc6 BK |
4800 | * @param __i1 Iterator referencing start of range to replace. |
4801 | * @param __i2 Iterator referencing end of range to replace. | |
4802 | * @param __l The initializer_list of characters to insert. | |
988499f4 JM |
4803 | * @return Reference to this string. |
4804 | * @throw std::length_error If new length exceeds @c max_size(). | |
4805 | * | |
93c66bc6 BK |
4806 | * Removes the characters in the range [__i1,__i2). In place, |
4807 | * characters in the range [__k1,__k2) are inserted. If the | |
4808 | * length of result exceeds max_size(), length_error is thrown. | |
4809 | * The value of the string doesn't change if an error is | |
4810 | * thrown. | |
988499f4 | 4811 | */ |
927dc7c6 PC |
4812 | basic_string& replace(iterator __i1, iterator __i2, |
4813 | initializer_list<_CharT> __l) | |
988499f4 | 4814 | { return this->replace(__i1, __i2, __l.begin(), __l.end()); } |
734f5023 | 4815 | #endif // C++11 |
988499f4 | 4816 | |
92daf2de JW |
4817 | #if __cplusplus > 201402L |
4818 | /** | |
4819 | * @brief Replace range of characters with string_view. | |
4820 | * @param __pos The position to replace at. | |
4821 | * @param __n The number of characters to replace. | |
4822 | * @param __sv The string_view to insert. | |
4823 | * @return Reference to this string. | |
4824 | */ | |
4825 | basic_string& | |
4826 | replace(size_type __pos, size_type __n, __sv_type __sv) | |
4827 | { return this->replace(__pos, __n, __sv.data(), __sv.size()); } | |
4828 | ||
4829 | /** | |
4830 | * @brief Replace range of characters with string_view. | |
4831 | * @param __pos1 The position to replace at. | |
4832 | * @param __n1 The number of characters to replace. | |
4833 | * @param __sv The string_view to insert from. | |
4834 | * @param __pos2 The position in the string_view to insert from. | |
4835 | * @param __n2 The number of characters to insert. | |
4836 | * @return Reference to this string. | |
4837 | */ | |
4838 | template <typename _Tp> | |
4839 | _If_sv<_Tp, basic_string&> | |
4840 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, | |
4841 | size_type __pos2, size_type __n2 = npos) | |
4842 | { | |
4843 | __sv_type __sv = __svt; | |
4844 | return this->replace(__pos1, __n1, __sv.data() | |
4845 | + __sv._M_check(__pos2, "basic_string::replace"), | |
4846 | __sv._M_limit(__pos2, __n2)); | |
4847 | } | |
4848 | ||
4849 | /** | |
4850 | * @brief Replace range of characters with string_view. | |
4851 | * @param __i1 An iterator referencing the start position | |
4852 | to replace at. | |
4853 | * @param __i2 An iterator referencing the end position | |
4854 | for the replace. | |
4855 | * @param __sv The string_view to insert from. | |
4856 | * @return Reference to this string. | |
4857 | */ | |
4858 | basic_string& | |
4859 | replace(const_iterator __i1, const_iterator __i2, __sv_type __sv) | |
4860 | { return this->replace(__i1 - begin(), __i2 - __i1, __sv); } | |
4861 | #endif // C++17 | |
4862 | ||
725dc051 | 4863 | private: |
bdb0f0f5 DG |
4864 | template<class _Integer> |
4865 | basic_string& | |
ed6814f7 | 4866 | _M_replace_dispatch(iterator __i1, iterator __i2, _Integer __n, |
bdb0f0f5 | 4867 | _Integer __val, __true_type) |
7bb9b33b | 4868 | { return _M_replace_aux(__i1 - _M_ibegin(), __i2 - __i1, __n, __val); } |
bdb0f0f5 DG |
4869 | |
4870 | template<class _InputIterator> | |
4871 | basic_string& | |
4872 | _M_replace_dispatch(iterator __i1, iterator __i2, _InputIterator __k1, | |
fefe561e | 4873 | _InputIterator __k2, __false_type); |
bdb0f0f5 DG |
4874 | |
4875 | basic_string& | |
91eab378 | 4876 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, |
6bfad5e1 | 4877 | _CharT __c); |
bdb0f0f5 | 4878 | |
7bb9b33b PC |
4879 | basic_string& |
4880 | _M_replace_safe(size_type __pos1, size_type __n1, const _CharT* __s, | |
6bfad5e1 | 4881 | size_type __n2); |
725dc051 BK |
4882 | |
4883 | // _S_construct_aux is used to implement the 21.3.1 para 15 which | |
4884 | // requires special behaviour if _InIter is an integral type | |
08addde6 | 4885 | template<class _InIterator> |
725dc051 | 4886 | static _CharT* |
0e50667c PC |
4887 | _S_construct_aux(_InIterator __beg, _InIterator __end, |
4888 | const _Alloc& __a, __false_type) | |
725dc051 | 4889 | { |
08addde6 | 4890 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; |
725dc051 BK |
4891 | return _S_construct(__beg, __end, __a, _Tag()); |
4892 | } | |
51122a42 | 4893 | |
25959e29 PC |
4894 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
4895 | // 438. Ambiguity in the "do the right thing" clause | |
4896 | template<class _Integer> | |
725dc051 | 4897 | static _CharT* |
25959e29 | 4898 | _S_construct_aux(_Integer __beg, _Integer __end, |
0e50667c | 4899 | const _Alloc& __a, __true_type) |
df4d18ad PC |
4900 | { return _S_construct_aux_2(static_cast<size_type>(__beg), |
4901 | __end, __a); } | |
4902 | ||
4903 | static _CharT* | |
4904 | _S_construct_aux_2(size_type __req, _CharT __c, const _Alloc& __a) | |
4905 | { return _S_construct(__req, __c, __a); } | |
51122a42 | 4906 | |
08addde6 | 4907 | template<class _InIterator> |
725dc051 | 4908 | static _CharT* |
08addde6 | 4909 | _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a) |
725dc051 | 4910 | { |
c0736a9d | 4911 | typedef typename std::__is_integer<_InIterator>::__type _Integral; |
725dc051 BK |
4912 | return _S_construct_aux(__beg, __end, __a, _Integral()); |
4913 | } | |
4914 | ||
4915 | // For Input Iterators, used in istreambuf_iterators, etc. | |
08addde6 | 4916 | template<class _InIterator> |
725dc051 | 4917 | static _CharT* |
08addde6 | 4918 | _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a, |
725dc051 | 4919 | input_iterator_tag); |
51122a42 | 4920 | |
725dc051 BK |
4921 | // For forward_iterators up to random_access_iterators, used for |
4922 | // string::iterator, _CharT*, etc. | |
08addde6 | 4923 | template<class _FwdIterator> |
725dc051 | 4924 | static _CharT* |
08addde6 | 4925 | _S_construct(_FwdIterator __beg, _FwdIterator __end, const _Alloc& __a, |
725dc051 BK |
4926 | forward_iterator_tag); |
4927 | ||
51122a42 | 4928 | static _CharT* |
725dc051 BK |
4929 | _S_construct(size_type __req, _CharT __c, const _Alloc& __a); |
4930 | ||
4931 | public: | |
4932 | ||
284f19bf JQ |
4933 | /** |
4934 | * @brief Copy substring into C string. | |
93c66bc6 BK |
4935 | * @param __s C string to copy value into. |
4936 | * @param __n Number of characters to copy. | |
4937 | * @param __pos Index of first character to copy. | |
284f19bf | 4938 | * @return Number of characters actually copied |
93c66bc6 | 4939 | * @throw std::out_of_range If __pos > size(). |
284f19bf | 4940 | * |
93c66bc6 BK |
4941 | * Copies up to @a __n characters starting at @a __pos into the |
4942 | * C string @a __s. If @a __pos is %greater than size(), | |
4943 | * out_of_range is thrown. | |
284f19bf | 4944 | */ |
51122a42 | 4945 | size_type |
725dc051 BK |
4946 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; |
4947 | ||
284f19bf JQ |
4948 | /** |
4949 | * @brief Swap contents with another string. | |
93c66bc6 | 4950 | * @param __s String to swap with. |
284f19bf | 4951 | * |
93c66bc6 | 4952 | * Exchanges the contents of this string with that of @a __s in constant |
284f19bf JQ |
4953 | * time. |
4954 | */ | |
d15ac9d9 | 4955 | // PR 58265, this should be noexcept. |
51122a42 | 4956 | void |
8515a600 | 4957 | swap(basic_string& __s); |
725dc051 BK |
4958 | |
4959 | // String operations: | |
284f19bf JQ |
4960 | /** |
4961 | * @brief Return const pointer to null-terminated contents. | |
4962 | * | |
4963 | * This is a handle to internal data. Do not modify or dire things may | |
4964 | * happen. | |
4965 | */ | |
51122a42 | 4966 | const _CharT* |
cea8c6de | 4967 | c_str() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 4968 | { return _M_data(); } |
725dc051 | 4969 | |
284f19bf JQ |
4970 | /** |
4971 | * @brief Return const pointer to contents. | |
4972 | * | |
92d58dee JW |
4973 | * This is a pointer to internal data. It is undefined to modify |
4974 | * the contents through the returned pointer. To get a pointer that | |
4975 | * allows modifying the contents use @c &str[0] instead, | |
4976 | * (or in C++17 the non-const @c str.data() overload). | |
284f19bf | 4977 | */ |
51122a42 | 4978 | const _CharT* |
cea8c6de | 4979 | data() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 4980 | { return _M_data(); } |
725dc051 | 4981 | |
92d58dee JW |
4982 | #if __cplusplus > 201402L |
4983 | /** | |
4984 | * @brief Return non-const pointer to contents. | |
4985 | * | |
4986 | * This is a pointer to the character sequence held by the string. | |
4987 | * Modifying the characters in the sequence is allowed. | |
4988 | */ | |
4989 | _CharT* | |
4990 | data() noexcept | |
4991 | { return _M_data(); } | |
4992 | #endif | |
4993 | ||
284f19bf JQ |
4994 | /** |
4995 | * @brief Return copy of allocator used to construct this string. | |
4996 | */ | |
51122a42 | 4997 | allocator_type |
cea8c6de | 4998 | get_allocator() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 4999 | { return _M_dataplus; } |
725dc051 | 5000 | |
284f19bf JQ |
5001 | /** |
5002 | * @brief Find position of a C substring. | |
93c66bc6 BK |
5003 | * @param __s C string to locate. |
5004 | * @param __pos Index of character to search from. | |
5005 | * @param __n Number of characters from @a s to search for. | |
284f19bf JQ |
5006 | * @return Index of start of first occurrence. |
5007 | * | |
93c66bc6 BK |
5008 | * Starting from @a __pos, searches forward for the first @a |
5009 | * __n characters in @a __s within this string. If found, | |
5010 | * returns the index where it begins. If not found, returns | |
5011 | * npos. | |
284f19bf | 5012 | */ |
51122a42 | 5013 | size_type |
39a03251 JW |
5014 | find(const _CharT* __s, size_type __pos, size_type __n) const |
5015 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5016 | |
284f19bf JQ |
5017 | /** |
5018 | * @brief Find position of a string. | |
93c66bc6 BK |
5019 | * @param __str String to locate. |
5020 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5021 | * @return Index of start of first occurrence. |
5022 | * | |
93c66bc6 | 5023 | * Starting from @a __pos, searches forward for value of @a __str within |
284f19bf JQ |
5024 | * this string. If found, returns the index where it begins. If not |
5025 | * found, returns npos. | |
5026 | */ | |
51122a42 | 5027 | size_type |
725dc051 | 5028 | find(const basic_string& __str, size_type __pos = 0) const |
39a03251 | 5029 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5030 | { return this->find(__str.data(), __pos, __str.size()); } |
5031 | ||
284f19bf JQ |
5032 | /** |
5033 | * @brief Find position of a C string. | |
93c66bc6 BK |
5034 | * @param __s C string to locate. |
5035 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5036 | * @return Index of start of first occurrence. |
5037 | * | |
93c66bc6 BK |
5038 | * Starting from @a __pos, searches forward for the value of @a |
5039 | * __s within this string. If found, returns the index where | |
5040 | * it begins. If not found, returns npos. | |
284f19bf | 5041 | */ |
51122a42 | 5042 | size_type |
39a03251 | 5043 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
ed6814f7 | 5044 | { |
285b36d6 | 5045 | __glibcxx_requires_string(__s); |
ed6814f7 | 5046 | return this->find(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5047 | } |
725dc051 | 5048 | |
284f19bf JQ |
5049 | /** |
5050 | * @brief Find position of a character. | |
93c66bc6 BK |
5051 | * @param __c Character to locate. |
5052 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5053 | * @return Index of first occurrence. |
5054 | * | |
93c66bc6 BK |
5055 | * Starting from @a __pos, searches forward for @a __c within |
5056 | * this string. If found, returns the index where it was | |
5057 | * found. If not found, returns npos. | |
284f19bf | 5058 | */ |
51122a42 | 5059 | size_type |
cea8c6de | 5060 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5061 | |
92daf2de JW |
5062 | #if __cplusplus > 201402L |
5063 | /** | |
5064 | * @brief Find position of a string_view. | |
5065 | * @param __sv The string_view to locate. | |
5066 | * @param __pos Index of character to search from (default 0). | |
5067 | * @return Index of start of first occurrence. | |
5068 | */ | |
5069 | size_type | |
5070 | find(__sv_type __sv, size_type __pos = 0) const noexcept | |
5071 | { return this->find(__sv.data(), __pos, __sv.size()); } | |
5072 | #endif // C++17 | |
5073 | ||
284f19bf JQ |
5074 | /** |
5075 | * @brief Find last position of a string. | |
93c66bc6 BK |
5076 | * @param __str String to locate. |
5077 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5078 | * @return Index of start of last occurrence. |
5079 | * | |
93c66bc6 BK |
5080 | * Starting from @a __pos, searches backward for value of @a |
5081 | * __str within this string. If found, returns the index where | |
5082 | * it begins. If not found, returns npos. | |
284f19bf | 5083 | */ |
51122a42 | 5084 | size_type |
725dc051 | 5085 | rfind(const basic_string& __str, size_type __pos = npos) const |
39a03251 | 5086 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5087 | { return this->rfind(__str.data(), __pos, __str.size()); } |
5088 | ||
284f19bf JQ |
5089 | /** |
5090 | * @brief Find last position of a C substring. | |
93c66bc6 BK |
5091 | * @param __s C string to locate. |
5092 | * @param __pos Index of character to search back from. | |
5093 | * @param __n Number of characters from s to search for. | |
284f19bf JQ |
5094 | * @return Index of start of last occurrence. |
5095 | * | |
93c66bc6 BK |
5096 | * Starting from @a __pos, searches backward for the first @a |
5097 | * __n characters in @a __s within this string. If found, | |
5098 | * returns the index where it begins. If not found, returns | |
5099 | * npos. | |
284f19bf | 5100 | */ |
51122a42 | 5101 | size_type |
39a03251 JW |
5102 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
5103 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5104 | |
284f19bf JQ |
5105 | /** |
5106 | * @brief Find last position of a C string. | |
93c66bc6 BK |
5107 | * @param __s C string to locate. |
5108 | * @param __pos Index of character to start search at (default end). | |
284f19bf JQ |
5109 | * @return Index of start of last occurrence. |
5110 | * | |
93c66bc6 BK |
5111 | * Starting from @a __pos, searches backward for the value of |
5112 | * @a __s within this string. If found, returns the index | |
5113 | * where it begins. If not found, returns npos. | |
284f19bf | 5114 | */ |
51122a42 | 5115 | size_type |
39a03251 | 5116 | rfind(const _CharT* __s, size_type __pos = npos) const _GLIBCXX_NOEXCEPT |
ed6814f7 | 5117 | { |
285b36d6 | 5118 | __glibcxx_requires_string(__s); |
ed6814f7 | 5119 | return this->rfind(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5120 | } |
725dc051 | 5121 | |
284f19bf JQ |
5122 | /** |
5123 | * @brief Find last position of a character. | |
93c66bc6 BK |
5124 | * @param __c Character to locate. |
5125 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5126 | * @return Index of last occurrence. |
5127 | * | |
93c66bc6 BK |
5128 | * Starting from @a __pos, searches backward for @a __c within |
5129 | * this string. If found, returns the index where it was | |
5130 | * found. If not found, returns npos. | |
284f19bf | 5131 | */ |
51122a42 | 5132 | size_type |
cea8c6de | 5133 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5134 | |
92daf2de JW |
5135 | #if __cplusplus > 201402L |
5136 | /** | |
5137 | * @brief Find last position of a string_view. | |
5138 | * @param __sv The string_view to locate. | |
5139 | * @param __pos Index of character to search back from (default end). | |
5140 | * @return Index of start of last occurrence. | |
5141 | */ | |
5142 | size_type | |
5143 | rfind(__sv_type __sv, size_type __pos = npos) const noexcept | |
5144 | { return this->rfind(__sv.data(), __pos, __sv.size()); } | |
5145 | #endif // C++17 | |
5146 | ||
284f19bf JQ |
5147 | /** |
5148 | * @brief Find position of a character of string. | |
93c66bc6 BK |
5149 | * @param __str String containing characters to locate. |
5150 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5151 | * @return Index of first occurrence. |
5152 | * | |
93c66bc6 BK |
5153 | * Starting from @a __pos, searches forward for one of the |
5154 | * characters of @a __str within this string. If found, | |
5155 | * returns the index where it was found. If not found, returns | |
5156 | * npos. | |
284f19bf | 5157 | */ |
51122a42 | 5158 | size_type |
725dc051 | 5159 | find_first_of(const basic_string& __str, size_type __pos = 0) const |
39a03251 | 5160 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5161 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
5162 | ||
284f19bf JQ |
5163 | /** |
5164 | * @brief Find position of a character of C substring. | |
93c66bc6 BK |
5165 | * @param __s String containing characters to locate. |
5166 | * @param __pos Index of character to search from. | |
5167 | * @param __n Number of characters from s to search for. | |
284f19bf JQ |
5168 | * @return Index of first occurrence. |
5169 | * | |
93c66bc6 BK |
5170 | * Starting from @a __pos, searches forward for one of the |
5171 | * first @a __n characters of @a __s within this string. If | |
5172 | * found, returns the index where it was found. If not found, | |
5173 | * returns npos. | |
284f19bf | 5174 | */ |
51122a42 | 5175 | size_type |
39a03251 JW |
5176 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
5177 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5178 | |
284f19bf JQ |
5179 | /** |
5180 | * @brief Find position of a character of C string. | |
93c66bc6 BK |
5181 | * @param __s String containing characters to locate. |
5182 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5183 | * @return Index of first occurrence. |
5184 | * | |
93c66bc6 BK |
5185 | * Starting from @a __pos, searches forward for one of the |
5186 | * characters of @a __s within this string. If found, returns | |
5187 | * the index where it was found. If not found, returns npos. | |
284f19bf | 5188 | */ |
51122a42 | 5189 | size_type |
725dc051 | 5190 | find_first_of(const _CharT* __s, size_type __pos = 0) const |
39a03251 | 5191 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5192 | { |
285b36d6 | 5193 | __glibcxx_requires_string(__s); |
ed6814f7 | 5194 | return this->find_first_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5195 | } |
725dc051 | 5196 | |
284f19bf JQ |
5197 | /** |
5198 | * @brief Find position of a character. | |
93c66bc6 BK |
5199 | * @param __c Character to locate. |
5200 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5201 | * @return Index of first occurrence. |
5202 | * | |
93c66bc6 BK |
5203 | * Starting from @a __pos, searches forward for the character |
5204 | * @a __c within this string. If found, returns the index | |
5205 | * where it was found. If not found, returns npos. | |
284f19bf | 5206 | * |
93c66bc6 | 5207 | * Note: equivalent to find(__c, __pos). |
284f19bf | 5208 | */ |
51122a42 | 5209 | size_type |
cea8c6de | 5210 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
725dc051 BK |
5211 | { return this->find(__c, __pos); } |
5212 | ||
92daf2de JW |
5213 | #if __cplusplus > 201402L |
5214 | /** | |
5215 | * @brief Find position of a character of a string_view. | |
5216 | * @param __sv A string_view containing characters to locate. | |
5217 | * @param __pos Index of character to search from (default 0). | |
5218 | * @return Index of first occurrence. | |
5219 | */ | |
5220 | size_type | |
5221 | find_first_of(__sv_type __sv, size_type __pos = 0) const noexcept | |
5222 | { return this->find_first_of(__sv.data(), __pos, __sv.size()); } | |
5223 | #endif // C++17 | |
5224 | ||
284f19bf JQ |
5225 | /** |
5226 | * @brief Find last position of a character of string. | |
93c66bc6 BK |
5227 | * @param __str String containing characters to locate. |
5228 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5229 | * @return Index of last occurrence. |
5230 | * | |
93c66bc6 BK |
5231 | * Starting from @a __pos, searches backward for one of the |
5232 | * characters of @a __str within this string. If found, | |
5233 | * returns the index where it was found. If not found, returns | |
5234 | * npos. | |
284f19bf | 5235 | */ |
51122a42 | 5236 | size_type |
725dc051 | 5237 | find_last_of(const basic_string& __str, size_type __pos = npos) const |
39a03251 | 5238 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5239 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
5240 | ||
284f19bf JQ |
5241 | /** |
5242 | * @brief Find last position of a character of C substring. | |
93c66bc6 BK |
5243 | * @param __s C string containing characters to locate. |
5244 | * @param __pos Index of character to search back from. | |
5245 | * @param __n Number of characters from s to search for. | |
284f19bf JQ |
5246 | * @return Index of last occurrence. |
5247 | * | |
93c66bc6 BK |
5248 | * Starting from @a __pos, searches backward for one of the |
5249 | * first @a __n characters of @a __s within this string. If | |
5250 | * found, returns the index where it was found. If not found, | |
5251 | * returns npos. | |
284f19bf | 5252 | */ |
51122a42 | 5253 | size_type |
39a03251 JW |
5254 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
5255 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5256 | |
284f19bf JQ |
5257 | /** |
5258 | * @brief Find last position of a character of C string. | |
93c66bc6 BK |
5259 | * @param __s C string containing characters to locate. |
5260 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5261 | * @return Index of last occurrence. |
5262 | * | |
93c66bc6 BK |
5263 | * Starting from @a __pos, searches backward for one of the |
5264 | * characters of @a __s within this string. If found, returns | |
5265 | * the index where it was found. If not found, returns npos. | |
284f19bf | 5266 | */ |
51122a42 | 5267 | size_type |
725dc051 | 5268 | find_last_of(const _CharT* __s, size_type __pos = npos) const |
39a03251 | 5269 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5270 | { |
285b36d6 | 5271 | __glibcxx_requires_string(__s); |
ed6814f7 | 5272 | return this->find_last_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5273 | } |
725dc051 | 5274 | |
284f19bf JQ |
5275 | /** |
5276 | * @brief Find last position of a character. | |
93c66bc6 BK |
5277 | * @param __c Character to locate. |
5278 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5279 | * @return Index of last occurrence. |
5280 | * | |
93c66bc6 BK |
5281 | * Starting from @a __pos, searches backward for @a __c within |
5282 | * this string. If found, returns the index where it was | |
5283 | * found. If not found, returns npos. | |
284f19bf | 5284 | * |
93c66bc6 | 5285 | * Note: equivalent to rfind(__c, __pos). |
284f19bf | 5286 | */ |
51122a42 | 5287 | size_type |
cea8c6de | 5288 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT |
725dc051 BK |
5289 | { return this->rfind(__c, __pos); } |
5290 | ||
92daf2de JW |
5291 | #if __cplusplus > 201402L |
5292 | /** | |
5293 | * @brief Find last position of a character of string. | |
5294 | * @param __sv A string_view containing characters to locate. | |
5295 | * @param __pos Index of character to search back from (default end). | |
5296 | * @return Index of last occurrence. | |
5297 | */ | |
5298 | size_type | |
5299 | find_last_of(__sv_type __sv, size_type __pos = npos) const noexcept | |
5300 | { return this->find_last_of(__sv.data(), __pos, __sv.size()); } | |
5301 | #endif // C++17 | |
5302 | ||
284f19bf JQ |
5303 | /** |
5304 | * @brief Find position of a character not in string. | |
93c66bc6 BK |
5305 | * @param __str String containing characters to avoid. |
5306 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5307 | * @return Index of first occurrence. |
5308 | * | |
93c66bc6 BK |
5309 | * Starting from @a __pos, searches forward for a character not contained |
5310 | * in @a __str within this string. If found, returns the index where it | |
284f19bf JQ |
5311 | * was found. If not found, returns npos. |
5312 | */ | |
51122a42 | 5313 | size_type |
725dc051 | 5314 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const |
39a03251 | 5315 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5316 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
5317 | ||
284f19bf JQ |
5318 | /** |
5319 | * @brief Find position of a character not in C substring. | |
93c66bc6 BK |
5320 | * @param __s C string containing characters to avoid. |
5321 | * @param __pos Index of character to search from. | |
5322 | * @param __n Number of characters from __s to consider. | |
284f19bf JQ |
5323 | * @return Index of first occurrence. |
5324 | * | |
93c66bc6 BK |
5325 | * Starting from @a __pos, searches forward for a character not |
5326 | * contained in the first @a __n characters of @a __s within | |
5327 | * this string. If found, returns the index where it was | |
5328 | * found. If not found, returns npos. | |
284f19bf | 5329 | */ |
51122a42 PE |
5330 | size_type |
5331 | find_first_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 5332 | size_type __n) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5333 | |
284f19bf JQ |
5334 | /** |
5335 | * @brief Find position of a character not in C string. | |
93c66bc6 BK |
5336 | * @param __s C string containing characters to avoid. |
5337 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5338 | * @return Index of first occurrence. |
5339 | * | |
93c66bc6 BK |
5340 | * Starting from @a __pos, searches forward for a character not |
5341 | * contained in @a __s within this string. If found, returns | |
5342 | * the index where it was found. If not found, returns npos. | |
284f19bf | 5343 | */ |
51122a42 | 5344 | size_type |
725dc051 | 5345 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const |
39a03251 | 5346 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5347 | { |
285b36d6 | 5348 | __glibcxx_requires_string(__s); |
ed6814f7 | 5349 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5350 | } |
725dc051 | 5351 | |
284f19bf JQ |
5352 | /** |
5353 | * @brief Find position of a different character. | |
93c66bc6 BK |
5354 | * @param __c Character to avoid. |
5355 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5356 | * @return Index of first occurrence. |
5357 | * | |
93c66bc6 BK |
5358 | * Starting from @a __pos, searches forward for a character |
5359 | * other than @a __c within this string. If found, returns the | |
5360 | * index where it was found. If not found, returns npos. | |
284f19bf | 5361 | */ |
51122a42 | 5362 | size_type |
cea8c6de | 5363 | find_first_not_of(_CharT __c, size_type __pos = 0) const |
39a03251 | 5364 | _GLIBCXX_NOEXCEPT; |
725dc051 | 5365 | |
92daf2de JW |
5366 | #if __cplusplus > 201402L |
5367 | /** | |
5368 | * @brief Find position of a character not in a string_view. | |
5369 | * @param __sv A string_view containing characters to avoid. | |
5370 | * @param __pos Index of character to search from (default 0). | |
5371 | * @return Index of first occurrence. | |
5372 | */ | |
5373 | size_type | |
5374 | find_first_not_of(__sv_type __sv, size_type __pos = 0) const noexcept | |
5375 | { return this->find_first_not_of(__sv.data(), __pos, __sv.size()); } | |
5376 | #endif // C++17 | |
5377 | ||
284f19bf JQ |
5378 | /** |
5379 | * @brief Find last position of a character not in string. | |
93c66bc6 BK |
5380 | * @param __str String containing characters to avoid. |
5381 | * @param __pos Index of character to search back from (default end). | |
ee5ca789 | 5382 | * @return Index of last occurrence. |
284f19bf | 5383 | * |
93c66bc6 BK |
5384 | * Starting from @a __pos, searches backward for a character |
5385 | * not contained in @a __str within this string. If found, | |
5386 | * returns the index where it was found. If not found, returns | |
5387 | * npos. | |
284f19bf | 5388 | */ |
51122a42 | 5389 | size_type |
725dc051 | 5390 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const |
39a03251 | 5391 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5392 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
5393 | ||
284f19bf JQ |
5394 | /** |
5395 | * @brief Find last position of a character not in C substring. | |
93c66bc6 BK |
5396 | * @param __s C string containing characters to avoid. |
5397 | * @param __pos Index of character to search back from. | |
5398 | * @param __n Number of characters from s to consider. | |
ee5ca789 | 5399 | * @return Index of last occurrence. |
284f19bf | 5400 | * |
93c66bc6 BK |
5401 | * Starting from @a __pos, searches backward for a character not |
5402 | * contained in the first @a __n characters of @a __s within this string. | |
284f19bf JQ |
5403 | * If found, returns the index where it was found. If not found, |
5404 | * returns npos. | |
5405 | */ | |
51122a42 PE |
5406 | size_type |
5407 | find_last_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 5408 | size_type __n) const _GLIBCXX_NOEXCEPT; |
284f19bf | 5409 | /** |
ee5ca789 | 5410 | * @brief Find last position of a character not in C string. |
93c66bc6 BK |
5411 | * @param __s C string containing characters to avoid. |
5412 | * @param __pos Index of character to search back from (default end). | |
ee5ca789 | 5413 | * @return Index of last occurrence. |
284f19bf | 5414 | * |
93c66bc6 BK |
5415 | * Starting from @a __pos, searches backward for a character |
5416 | * not contained in @a __s within this string. If found, | |
5417 | * returns the index where it was found. If not found, returns | |
5418 | * npos. | |
284f19bf | 5419 | */ |
51122a42 | 5420 | size_type |
725dc051 | 5421 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const |
39a03251 | 5422 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5423 | { |
285b36d6 | 5424 | __glibcxx_requires_string(__s); |
ed6814f7 | 5425 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5426 | } |
725dc051 | 5427 | |
284f19bf JQ |
5428 | /** |
5429 | * @brief Find last position of a different character. | |
93c66bc6 BK |
5430 | * @param __c Character to avoid. |
5431 | * @param __pos Index of character to search back from (default end). | |
ee5ca789 | 5432 | * @return Index of last occurrence. |
284f19bf | 5433 | * |
93c66bc6 BK |
5434 | * Starting from @a __pos, searches backward for a character other than |
5435 | * @a __c within this string. If found, returns the index where it was | |
284f19bf JQ |
5436 | * found. If not found, returns npos. |
5437 | */ | |
51122a42 | 5438 | size_type |
cea8c6de | 5439 | find_last_not_of(_CharT __c, size_type __pos = npos) const |
39a03251 | 5440 | _GLIBCXX_NOEXCEPT; |
725dc051 | 5441 | |
92daf2de JW |
5442 | #if __cplusplus > 201402L |
5443 | /** | |
5444 | * @brief Find last position of a character not in a string_view. | |
5445 | * @param __sv A string_view containing characters to avoid. | |
5446 | * @param __pos Index of character to search back from (default end). | |
5447 | * @return Index of last occurrence. | |
5448 | */ | |
5449 | size_type | |
5450 | find_last_not_of(__sv_type __sv, size_type __pos = npos) const noexcept | |
5451 | { return this->find_last_not_of(__sv.data(), __pos, __sv.size()); } | |
5452 | #endif // C++17 | |
5453 | ||
284f19bf JQ |
5454 | /** |
5455 | * @brief Get a substring. | |
93c66bc6 BK |
5456 | * @param __pos Index of first character (default 0). |
5457 | * @param __n Number of characters in substring (default remainder). | |
284f19bf | 5458 | * @return The new string. |
93c66bc6 | 5459 | * @throw std::out_of_range If __pos > size(). |
284f19bf | 5460 | * |
93c66bc6 BK |
5461 | * Construct and return a new string using the @a __n |
5462 | * characters starting at @a __pos. If the string is too | |
5463 | * short, use the remainder of the characters. If @a __pos is | |
5464 | * beyond the end of the string, out_of_range is thrown. | |
284f19bf | 5465 | */ |
51122a42 | 5466 | basic_string |
725dc051 | 5467 | substr(size_type __pos = 0, size_type __n = npos) const |
0e50667c PC |
5468 | { return basic_string(*this, |
5469 | _M_check(__pos, "basic_string::substr"), __n); } | |
725dc051 | 5470 | |
284f19bf JQ |
5471 | /** |
5472 | * @brief Compare to a string. | |
93c66bc6 | 5473 | * @param __str String to compare against. |
284f19bf JQ |
5474 | * @return Integer < 0, 0, or > 0. |
5475 | * | |
93c66bc6 BK |
5476 | * Returns an integer < 0 if this string is ordered before @a |
5477 | * __str, 0 if their values are equivalent, or > 0 if this | |
5478 | * string is ordered after @a __str. Determines the effective | |
5479 | * length rlen of the strings to compare as the smallest of | |
5480 | * size() and str.size(). The function then compares the two | |
5481 | * strings by calling traits::compare(data(), str.data(),rlen). | |
5482 | * If the result of the comparison is nonzero returns it, | |
5483 | * otherwise the shorter one is ordered first. | |
284f19bf | 5484 | */ |
51122a42 | 5485 | int |
725dc051 BK |
5486 | compare(const basic_string& __str) const |
5487 | { | |
7778fa6e PC |
5488 | const size_type __size = this->size(); |
5489 | const size_type __osize = __str.size(); | |
5490 | const size_type __len = std::min(__size, __osize); | |
51122a42 | 5491 | |
725dc051 BK |
5492 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
5493 | if (!__r) | |
9521dd6b | 5494 | __r = _S_compare(__size, __osize); |
725dc051 BK |
5495 | return __r; |
5496 | } | |
5497 | ||
92daf2de JW |
5498 | #if __cplusplus > 201402L |
5499 | /** | |
5500 | * @brief Compare to a string_view. | |
5501 | * @param __sv A string_view to compare against. | |
5502 | * @return Integer < 0, 0, or > 0. | |
5503 | */ | |
5504 | int | |
5505 | compare(__sv_type __sv) const | |
5506 | { | |
5507 | const size_type __size = this->size(); | |
5508 | const size_type __osize = __sv.size(); | |
5509 | const size_type __len = std::min(__size, __osize); | |
5510 | ||
5511 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); | |
5512 | if (!__r) | |
5513 | __r = _S_compare(__size, __osize); | |
5514 | return __r; | |
5515 | } | |
5516 | ||
5517 | /** | |
5518 | * @brief Compare to a string_view. | |
5519 | * @param __pos A position in the string to start comparing from. | |
5520 | * @param __n The number of characters to compare. | |
5521 | * @param __sv A string_view to compare against. | |
5522 | * @return Integer < 0, 0, or > 0. | |
5523 | */ | |
5524 | int | |
5525 | compare(size_type __pos, size_type __n, __sv_type __sv) const | |
5526 | { return __sv_type(*this).substr(__pos, __n).compare(__sv); } | |
5527 | ||
5528 | /** | |
5529 | * @brief Compare to a string_view. | |
5530 | * @param __pos1 A position in the string to start comparing from. | |
5531 | * @param __n1 The number of characters to compare. | |
5532 | * @param __sv A string_view to compare against. | |
5533 | * @param __pos2 A position in the string_view to start comparing from. | |
5534 | * @param __n2 The number of characters to compare. | |
5535 | * @return Integer < 0, 0, or > 0. | |
5536 | */ | |
5537 | template <typename _Tp> | |
5538 | _If_sv<_Tp, int> | |
5539 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, | |
5540 | size_type __pos2, size_type __n2 = npos) const | |
5541 | { | |
5542 | __sv_type __sv = __svt; | |
5543 | return __sv_type(*this) | |
5544 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); | |
5545 | } | |
5546 | #endif // C++17 | |
5547 | ||
284f19bf JQ |
5548 | /** |
5549 | * @brief Compare substring to a string. | |
93c66bc6 BK |
5550 | * @param __pos Index of first character of substring. |
5551 | * @param __n Number of characters in substring. | |
5552 | * @param __str String to compare against. | |
284f19bf JQ |
5553 | * @return Integer < 0, 0, or > 0. |
5554 | * | |
93c66bc6 BK |
5555 | * Form the substring of this string from the @a __n characters |
5556 | * starting at @a __pos. Returns an integer < 0 if the | |
5557 | * substring is ordered before @a __str, 0 if their values are | |
5558 | * equivalent, or > 0 if the substring is ordered after @a | |
5559 | * __str. Determines the effective length rlen of the strings | |
5560 | * to compare as the smallest of the length of the substring | |
5561 | * and @a __str.size(). The function then compares the two | |
5562 | * strings by calling | |
5563 | * traits::compare(substring.data(),str.data(),rlen). If the | |
5564 | * result of the comparison is nonzero returns it, otherwise | |
5565 | * the shorter one is ordered first. | |
284f19bf | 5566 | */ |
51122a42 | 5567 | int |
725dc051 BK |
5568 | compare(size_type __pos, size_type __n, const basic_string& __str) const; |
5569 | ||
284f19bf JQ |
5570 | /** |
5571 | * @brief Compare substring to a substring. | |
93c66bc6 BK |
5572 | * @param __pos1 Index of first character of substring. |
5573 | * @param __n1 Number of characters in substring. | |
5574 | * @param __str String to compare against. | |
5575 | * @param __pos2 Index of first character of substring of str. | |
5576 | * @param __n2 Number of characters in substring of str. | |
284f19bf JQ |
5577 | * @return Integer < 0, 0, or > 0. |
5578 | * | |
93c66bc6 BK |
5579 | * Form the substring of this string from the @a __n1 |
5580 | * characters starting at @a __pos1. Form the substring of @a | |
5581 | * __str from the @a __n2 characters starting at @a __pos2. | |
5582 | * Returns an integer < 0 if this substring is ordered before | |
5583 | * the substring of @a __str, 0 if their values are equivalent, | |
5584 | * or > 0 if this substring is ordered after the substring of | |
5585 | * @a __str. Determines the effective length rlen of the | |
5586 | * strings to compare as the smallest of the lengths of the | |
5587 | * substrings. The function then compares the two strings by | |
5588 | * calling | |
a26b6b94 | 5589 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). |
93c66bc6 BK |
5590 | * If the result of the comparison is nonzero returns it, |
5591 | * otherwise the shorter one is ordered first. | |
284f19bf | 5592 | */ |
51122a42 | 5593 | int |
725dc051 BK |
5594 | compare(size_type __pos1, size_type __n1, const basic_string& __str, |
5595 | size_type __pos2, size_type __n2) const; | |
5596 | ||
284f19bf JQ |
5597 | /** |
5598 | * @brief Compare to a C string. | |
93c66bc6 | 5599 | * @param __s C string to compare against. |
284f19bf JQ |
5600 | * @return Integer < 0, 0, or > 0. |
5601 | * | |
93c66bc6 | 5602 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if |
284f19bf | 5603 | * their values are equivalent, or > 0 if this string is ordered after |
93c66bc6 | 5604 | * @a __s. Determines the effective length rlen of the strings to |
a26b6b94 | 5605 | * compare as the smallest of size() and the length of a string |
93c66bc6 | 5606 | * constructed from @a __s. The function then compares the two strings |
a26b6b94 PC |
5607 | * by calling traits::compare(data(),s,rlen). If the result of the |
5608 | * comparison is nonzero returns it, otherwise the shorter one is | |
5609 | * ordered first. | |
284f19bf | 5610 | */ |
51122a42 | 5611 | int |
39a03251 | 5612 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5613 | |
3d7c150e | 5614 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
d56a8811 | 5615 | // 5 String::compare specification questionable |
284f19bf JQ |
5616 | /** |
5617 | * @brief Compare substring to a C string. | |
93c66bc6 BK |
5618 | * @param __pos Index of first character of substring. |
5619 | * @param __n1 Number of characters in substring. | |
5620 | * @param __s C string to compare against. | |
284f19bf JQ |
5621 | * @return Integer < 0, 0, or > 0. |
5622 | * | |
93c66bc6 BK |
5623 | * Form the substring of this string from the @a __n1 |
5624 | * characters starting at @a pos. Returns an integer < 0 if | |
5625 | * the substring is ordered before @a __s, 0 if their values | |
5626 | * are equivalent, or > 0 if the substring is ordered after @a | |
5627 | * __s. Determines the effective length rlen of the strings to | |
5628 | * compare as the smallest of the length of the substring and | |
5629 | * the length of a string constructed from @a __s. The | |
a26b6b94 | 5630 | * function then compares the two string by calling |
93c66bc6 BK |
5631 | * traits::compare(substring.data(),__s,rlen). If the result of |
5632 | * the comparison is nonzero returns it, otherwise the shorter | |
5633 | * one is ordered first. | |
284f19bf | 5634 | */ |
51122a42 | 5635 | int |
3b0fd4bc BK |
5636 | compare(size_type __pos, size_type __n1, const _CharT* __s) const; |
5637 | ||
284f19bf | 5638 | /** |
0d1141a3 | 5639 | * @brief Compare substring against a character %array. |
93c66bc6 BK |
5640 | * @param __pos Index of first character of substring. |
5641 | * @param __n1 Number of characters in substring. | |
5642 | * @param __s character %array to compare against. | |
5643 | * @param __n2 Number of characters of s. | |
284f19bf JQ |
5644 | * @return Integer < 0, 0, or > 0. |
5645 | * | |
93c66bc6 BK |
5646 | * Form the substring of this string from the @a __n1 |
5647 | * characters starting at @a __pos. Form a string from the | |
5648 | * first @a __n2 characters of @a __s. Returns an integer < 0 | |
5649 | * if this substring is ordered before the string from @a __s, | |
5650 | * 0 if their values are equivalent, or > 0 if this substring | |
5651 | * is ordered after the string from @a __s. Determines the | |
5652 | * effective length rlen of the strings to compare as the | |
5653 | * smallest of the length of the substring and @a __n2. The | |
5654 | * function then compares the two strings by calling | |
5655 | * traits::compare(substring.data(),s,rlen). If the result of | |
5656 | * the comparison is nonzero returns it, otherwise the shorter | |
a26b6b94 | 5657 | * one is ordered first. |
95c9624f | 5658 | * |
2a60a9f6 BK |
5659 | * NB: s must have at least n2 characters, '\\0' has |
5660 | * no special meaning. | |
284f19bf | 5661 | */ |
51122a42 PE |
5662 | int |
5663 | compare(size_type __pos, size_type __n1, const _CharT* __s, | |
3b0fd4bc | 5664 | size_type __n2) const; |
a04d5fc9 TR |
5665 | |
5666 | # ifdef _GLIBCXX_TM_TS_INTERNAL | |
5667 | friend void | |
5668 | ::_txnal_cow_string_C1_for_exceptions(void* that, const char* s, | |
5669 | void* exc); | |
5670 | friend const char* | |
5671 | ::_txnal_cow_string_c_str(const void *that); | |
5672 | friend void | |
5673 | ::_txnal_cow_string_D1(void *that); | |
5674 | friend void | |
5675 | ::_txnal_cow_string_D1_commit(void *that); | |
5676 | # endif | |
725dc051 | 5677 | }; |
34a2b755 | 5678 | #endif // !_GLIBCXX_USE_CXX11_ABI |
725dc051 | 5679 | |
6d82c562 JW |
5680 | #if __cpp_deduction_guides >= 201606 |
5681 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 | |
5682 | template<typename _InputIterator, typename _CharT | |
5683 | = typename iterator_traits<_InputIterator>::value_type, | |
5684 | typename _Allocator = allocator<_CharT>, | |
5685 | typename = _RequireInputIter<_InputIterator>, | |
5686 | typename = _RequireAllocator<_Allocator>> | |
5687 | basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator()) | |
5688 | -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; | |
5689 | _GLIBCXX_END_NAMESPACE_CXX11 | |
5690 | #endif | |
5691 | ||
725dc051 | 5692 | // operator+ |
284f19bf JQ |
5693 | /** |
5694 | * @brief Concatenate two strings. | |
93c66bc6 BK |
5695 | * @param __lhs First string. |
5696 | * @param __rhs Last string. | |
5697 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 5698 | */ |
41b8e86c | 5699 | template<typename _CharT, typename _Traits, typename _Alloc> |
725dc051 BK |
5700 | basic_string<_CharT, _Traits, _Alloc> |
5701 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5702 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5703 | { | |
5704 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
5705 | __str.append(__rhs); | |
5706 | return __str; | |
5707 | } | |
5708 | ||
284f19bf JQ |
5709 | /** |
5710 | * @brief Concatenate C string and string. | |
93c66bc6 BK |
5711 | * @param __lhs First string. |
5712 | * @param __rhs Last string. | |
5713 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 5714 | */ |
725dc051 BK |
5715 | template<typename _CharT, typename _Traits, typename _Alloc> |
5716 | basic_string<_CharT,_Traits,_Alloc> | |
5717 | operator+(const _CharT* __lhs, | |
5718 | const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
5719 | ||
284f19bf JQ |
5720 | /** |
5721 | * @brief Concatenate character and string. | |
93c66bc6 BK |
5722 | * @param __lhs First string. |
5723 | * @param __rhs Last string. | |
5724 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 5725 | */ |
725dc051 BK |
5726 | template<typename _CharT, typename _Traits, typename _Alloc> |
5727 | basic_string<_CharT,_Traits,_Alloc> | |
5728 | operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
5729 | ||
284f19bf JQ |
5730 | /** |
5731 | * @brief Concatenate string and C string. | |
93c66bc6 BK |
5732 | * @param __lhs First string. |
5733 | * @param __rhs Last string. | |
5734 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 5735 | */ |
725dc051 BK |
5736 | template<typename _CharT, typename _Traits, typename _Alloc> |
5737 | inline basic_string<_CharT, _Traits, _Alloc> | |
5738 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
34a2b755 | 5739 | const _CharT* __rhs) |
725dc051 BK |
5740 | { |
5741 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
5742 | __str.append(__rhs); | |
5743 | return __str; | |
5744 | } | |
5745 | ||
284f19bf JQ |
5746 | /** |
5747 | * @brief Concatenate string and character. | |
93c66bc6 BK |
5748 | * @param __lhs First string. |
5749 | * @param __rhs Last string. | |
5750 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 5751 | */ |
725dc051 BK |
5752 | template<typename _CharT, typename _Traits, typename _Alloc> |
5753 | inline basic_string<_CharT, _Traits, _Alloc> | |
5754 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs) | |
5755 | { | |
ed6814f7 | 5756 | typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
725dc051 BK |
5757 | typedef typename __string_type::size_type __size_type; |
5758 | __string_type __str(__lhs); | |
5759 | __str.append(__size_type(1), __rhs); | |
5760 | return __str; | |
5761 | } | |
5762 | ||
734f5023 | 5763 | #if __cplusplus >= 201103L |
ce99f498 PC |
5764 | template<typename _CharT, typename _Traits, typename _Alloc> |
5765 | inline basic_string<_CharT, _Traits, _Alloc> | |
5766 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
5767 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5768 | { return std::move(__lhs.append(__rhs)); } | |
5769 | ||
5770 | template<typename _CharT, typename _Traits, typename _Alloc> | |
5771 | inline basic_string<_CharT, _Traits, _Alloc> | |
5772 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5773 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
5774 | { return std::move(__rhs.insert(0, __lhs)); } | |
5775 | ||
5776 | template<typename _CharT, typename _Traits, typename _Alloc> | |
5777 | inline basic_string<_CharT, _Traits, _Alloc> | |
5778 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
5779 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
37a68925 PC |
5780 | { |
5781 | const auto __size = __lhs.size() + __rhs.size(); | |
5782 | const bool __cond = (__size > __lhs.capacity() | |
5783 | && __size <= __rhs.capacity()); | |
5784 | return __cond ? std::move(__rhs.insert(0, __lhs)) | |
5785 | : std::move(__lhs.append(__rhs)); | |
5786 | } | |
ce99f498 PC |
5787 | |
5788 | template<typename _CharT, typename _Traits, typename _Alloc> | |
5789 | inline basic_string<_CharT, _Traits, _Alloc> | |
5790 | operator+(const _CharT* __lhs, | |
5791 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
5792 | { return std::move(__rhs.insert(0, __lhs)); } | |
5793 | ||
5794 | template<typename _CharT, typename _Traits, typename _Alloc> | |
5795 | inline basic_string<_CharT, _Traits, _Alloc> | |
37a68925 PC |
5796 | operator+(_CharT __lhs, |
5797 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
ce99f498 PC |
5798 | { return std::move(__rhs.insert(0, 1, __lhs)); } |
5799 | ||
5800 | template<typename _CharT, typename _Traits, typename _Alloc> | |
5801 | inline basic_string<_CharT, _Traits, _Alloc> | |
5802 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
5803 | const _CharT* __rhs) | |
5804 | { return std::move(__lhs.append(__rhs)); } | |
5805 | ||
5806 | template<typename _CharT, typename _Traits, typename _Alloc> | |
5807 | inline basic_string<_CharT, _Traits, _Alloc> | |
5808 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
5809 | _CharT __rhs) | |
5810 | { return std::move(__lhs.append(1, __rhs)); } | |
5811 | #endif | |
5812 | ||
725dc051 | 5813 | // operator == |
284f19bf JQ |
5814 | /** |
5815 | * @brief Test equivalence of two strings. | |
93c66bc6 BK |
5816 | * @param __lhs First string. |
5817 | * @param __rhs Second string. | |
5818 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 5819 | */ |
725dc051 BK |
5820 | template<typename _CharT, typename _Traits, typename _Alloc> |
5821 | inline bool | |
5822 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5823 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 5824 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5825 | { return __lhs.compare(__rhs) == 0; } |
5826 | ||
bd12160a PC |
5827 | template<typename _CharT> |
5828 | inline | |
5829 | typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, bool>::__type | |
5830 | operator==(const basic_string<_CharT>& __lhs, | |
5caff414 | 5831 | const basic_string<_CharT>& __rhs) _GLIBCXX_NOEXCEPT |
bd12160a PC |
5832 | { return (__lhs.size() == __rhs.size() |
5833 | && !std::char_traits<_CharT>::compare(__lhs.data(), __rhs.data(), | |
5834 | __lhs.size())); } | |
5835 | ||
284f19bf JQ |
5836 | /** |
5837 | * @brief Test equivalence of C string and string. | |
93c66bc6 BK |
5838 | * @param __lhs C string. |
5839 | * @param __rhs String. | |
5840 | * @return True if @a __rhs.compare(@a __lhs) == 0. False otherwise. | |
ed6814f7 | 5841 | */ |
725dc051 BK |
5842 | template<typename _CharT, typename _Traits, typename _Alloc> |
5843 | inline bool | |
5844 | operator==(const _CharT* __lhs, | |
5845 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5846 | { return __rhs.compare(__lhs) == 0; } | |
5847 | ||
284f19bf JQ |
5848 | /** |
5849 | * @brief Test equivalence of string and C string. | |
93c66bc6 BK |
5850 | * @param __lhs String. |
5851 | * @param __rhs C string. | |
5852 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 5853 | */ |
725dc051 BK |
5854 | template<typename _CharT, typename _Traits, typename _Alloc> |
5855 | inline bool | |
5856 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5857 | const _CharT* __rhs) | |
5858 | { return __lhs.compare(__rhs) == 0; } | |
5859 | ||
5860 | // operator != | |
284f19bf JQ |
5861 | /** |
5862 | * @brief Test difference of two strings. | |
93c66bc6 BK |
5863 | * @param __lhs First string. |
5864 | * @param __rhs Second string. | |
5865 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 5866 | */ |
725dc051 BK |
5867 | template<typename _CharT, typename _Traits, typename _Alloc> |
5868 | inline bool | |
5869 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5870 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 5871 | _GLIBCXX_NOEXCEPT |
bd12160a | 5872 | { return !(__lhs == __rhs); } |
725dc051 | 5873 | |
284f19bf JQ |
5874 | /** |
5875 | * @brief Test difference of C string and string. | |
93c66bc6 BK |
5876 | * @param __lhs C string. |
5877 | * @param __rhs String. | |
5878 | * @return True if @a __rhs.compare(@a __lhs) != 0. False otherwise. | |
ed6814f7 | 5879 | */ |
725dc051 BK |
5880 | template<typename _CharT, typename _Traits, typename _Alloc> |
5881 | inline bool | |
5882 | operator!=(const _CharT* __lhs, | |
5883 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
bd12160a | 5884 | { return !(__lhs == __rhs); } |
725dc051 | 5885 | |
284f19bf JQ |
5886 | /** |
5887 | * @brief Test difference of string and C string. | |
93c66bc6 BK |
5888 | * @param __lhs String. |
5889 | * @param __rhs C string. | |
5890 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 5891 | */ |
725dc051 BK |
5892 | template<typename _CharT, typename _Traits, typename _Alloc> |
5893 | inline bool | |
5894 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5895 | const _CharT* __rhs) | |
bd12160a | 5896 | { return !(__lhs == __rhs); } |
725dc051 BK |
5897 | |
5898 | // operator < | |
284f19bf JQ |
5899 | /** |
5900 | * @brief Test if string precedes string. | |
93c66bc6 BK |
5901 | * @param __lhs First string. |
5902 | * @param __rhs Second string. | |
5903 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 5904 | */ |
725dc051 BK |
5905 | template<typename _CharT, typename _Traits, typename _Alloc> |
5906 | inline bool | |
5907 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5908 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 5909 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5910 | { return __lhs.compare(__rhs) < 0; } |
5911 | ||
284f19bf JQ |
5912 | /** |
5913 | * @brief Test if string precedes C string. | |
93c66bc6 BK |
5914 | * @param __lhs String. |
5915 | * @param __rhs C string. | |
5916 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 5917 | */ |
725dc051 BK |
5918 | template<typename _CharT, typename _Traits, typename _Alloc> |
5919 | inline bool | |
5920 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5921 | const _CharT* __rhs) | |
5922 | { return __lhs.compare(__rhs) < 0; } | |
5923 | ||
284f19bf JQ |
5924 | /** |
5925 | * @brief Test if C string precedes string. | |
93c66bc6 BK |
5926 | * @param __lhs C string. |
5927 | * @param __rhs String. | |
5928 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 5929 | */ |
725dc051 BK |
5930 | template<typename _CharT, typename _Traits, typename _Alloc> |
5931 | inline bool | |
5932 | operator<(const _CharT* __lhs, | |
5933 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5934 | { return __rhs.compare(__lhs) > 0; } | |
5935 | ||
5936 | // operator > | |
284f19bf JQ |
5937 | /** |
5938 | * @brief Test if string follows string. | |
93c66bc6 BK |
5939 | * @param __lhs First string. |
5940 | * @param __rhs Second string. | |
5941 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 5942 | */ |
725dc051 BK |
5943 | template<typename _CharT, typename _Traits, typename _Alloc> |
5944 | inline bool | |
5945 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5946 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 5947 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5948 | { return __lhs.compare(__rhs) > 0; } |
5949 | ||
284f19bf JQ |
5950 | /** |
5951 | * @brief Test if string follows C string. | |
93c66bc6 BK |
5952 | * @param __lhs String. |
5953 | * @param __rhs C string. | |
5954 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 5955 | */ |
725dc051 BK |
5956 | template<typename _CharT, typename _Traits, typename _Alloc> |
5957 | inline bool | |
5958 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5959 | const _CharT* __rhs) | |
5960 | { return __lhs.compare(__rhs) > 0; } | |
5961 | ||
284f19bf JQ |
5962 | /** |
5963 | * @brief Test if C string follows string. | |
93c66bc6 BK |
5964 | * @param __lhs C string. |
5965 | * @param __rhs String. | |
5966 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 5967 | */ |
725dc051 BK |
5968 | template<typename _CharT, typename _Traits, typename _Alloc> |
5969 | inline bool | |
5970 | operator>(const _CharT* __lhs, | |
5971 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5972 | { return __rhs.compare(__lhs) < 0; } | |
5973 | ||
5974 | // operator <= | |
284f19bf JQ |
5975 | /** |
5976 | * @brief Test if string doesn't follow string. | |
93c66bc6 BK |
5977 | * @param __lhs First string. |
5978 | * @param __rhs Second string. | |
5979 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 5980 | */ |
725dc051 BK |
5981 | template<typename _CharT, typename _Traits, typename _Alloc> |
5982 | inline bool | |
5983 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5984 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 5985 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5986 | { return __lhs.compare(__rhs) <= 0; } |
5987 | ||
284f19bf JQ |
5988 | /** |
5989 | * @brief Test if string doesn't follow C string. | |
93c66bc6 BK |
5990 | * @param __lhs String. |
5991 | * @param __rhs C string. | |
5992 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 5993 | */ |
725dc051 BK |
5994 | template<typename _CharT, typename _Traits, typename _Alloc> |
5995 | inline bool | |
5996 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
5997 | const _CharT* __rhs) | |
5998 | { return __lhs.compare(__rhs) <= 0; } | |
5999 | ||
284f19bf JQ |
6000 | /** |
6001 | * @brief Test if C string doesn't follow string. | |
93c66bc6 BK |
6002 | * @param __lhs C string. |
6003 | * @param __rhs String. | |
6004 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 6005 | */ |
725dc051 BK |
6006 | template<typename _CharT, typename _Traits, typename _Alloc> |
6007 | inline bool | |
6008 | operator<=(const _CharT* __lhs, | |
6009 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
e9fb72e8 | 6010 | { return __rhs.compare(__lhs) >= 0; } |
725dc051 BK |
6011 | |
6012 | // operator >= | |
284f19bf JQ |
6013 | /** |
6014 | * @brief Test if string doesn't precede string. | |
93c66bc6 BK |
6015 | * @param __lhs First string. |
6016 | * @param __rhs Second string. | |
6017 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 6018 | */ |
725dc051 BK |
6019 | template<typename _CharT, typename _Traits, typename _Alloc> |
6020 | inline bool | |
6021 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6022 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6023 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
6024 | { return __lhs.compare(__rhs) >= 0; } |
6025 | ||
284f19bf JQ |
6026 | /** |
6027 | * @brief Test if string doesn't precede C string. | |
93c66bc6 BK |
6028 | * @param __lhs String. |
6029 | * @param __rhs C string. | |
6030 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 6031 | */ |
725dc051 BK |
6032 | template<typename _CharT, typename _Traits, typename _Alloc> |
6033 | inline bool | |
6034 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6035 | const _CharT* __rhs) | |
6036 | { return __lhs.compare(__rhs) >= 0; } | |
6037 | ||
284f19bf JQ |
6038 | /** |
6039 | * @brief Test if C string doesn't precede string. | |
93c66bc6 BK |
6040 | * @param __lhs C string. |
6041 | * @param __rhs String. | |
6042 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 6043 | */ |
725dc051 BK |
6044 | template<typename _CharT, typename _Traits, typename _Alloc> |
6045 | inline bool | |
6046 | operator>=(const _CharT* __lhs, | |
6047 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6048 | { return __rhs.compare(__lhs) <= 0; } | |
6049 | ||
284f19bf JQ |
6050 | /** |
6051 | * @brief Swap contents of two strings. | |
93c66bc6 BK |
6052 | * @param __lhs First string. |
6053 | * @param __rhs Second string. | |
284f19bf | 6054 | * |
93c66bc6 | 6055 | * Exchanges the contents of @a __lhs and @a __rhs in constant time. |
284f19bf | 6056 | */ |
725dc051 BK |
6057 | template<typename _CharT, typename _Traits, typename _Alloc> |
6058 | inline void | |
6059 | swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6060 | basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6061 | _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs))) |
725dc051 BK |
6062 | { __lhs.swap(__rhs); } |
6063 | ||
34a2b755 | 6064 | |
284f19bf JQ |
6065 | /** |
6066 | * @brief Read stream into a string. | |
93c66bc6 BK |
6067 | * @param __is Input stream. |
6068 | * @param __str Buffer to store into. | |
284f19bf JQ |
6069 | * @return Reference to the input stream. |
6070 | * | |
93c66bc6 BK |
6071 | * Stores characters from @a __is into @a __str until whitespace is |
6072 | * found, the end of the stream is encountered, or str.max_size() | |
6073 | * is reached. If is.width() is non-zero, that is the limit on the | |
6074 | * number of characters stored into @a __str. Any previous | |
6075 | * contents of @a __str are erased. | |
284f19bf | 6076 | */ |
725dc051 BK |
6077 | template<typename _CharT, typename _Traits, typename _Alloc> |
6078 | basic_istream<_CharT, _Traits>& | |
6079 | operator>>(basic_istream<_CharT, _Traits>& __is, | |
6080 | basic_string<_CharT, _Traits, _Alloc>& __str); | |
6081 | ||
ceed88b1 PC |
6082 | template<> |
6083 | basic_istream<char>& | |
6084 | operator>>(basic_istream<char>& __is, basic_string<char>& __str); | |
6085 | ||
284f19bf JQ |
6086 | /** |
6087 | * @brief Write string to a stream. | |
93c66bc6 BK |
6088 | * @param __os Output stream. |
6089 | * @param __str String to write out. | |
284f19bf JQ |
6090 | * @return Reference to the output stream. |
6091 | * | |
93c66bc6 | 6092 | * Output characters of @a __str into os following the same rules as for |
284f19bf JQ |
6093 | * writing a C string. |
6094 | */ | |
725dc051 | 6095 | template<typename _CharT, typename _Traits, typename _Alloc> |
70c99f6c | 6096 | inline basic_ostream<_CharT, _Traits>& |
725dc051 | 6097 | operator<<(basic_ostream<_CharT, _Traits>& __os, |
ec2061a9 PC |
6098 | const basic_string<_CharT, _Traits, _Alloc>& __str) |
6099 | { | |
6100 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
6101 | // 586. string inserter not a formatted function | |
11202768 | 6102 | return __ostream_insert(__os, __str.data(), __str.size()); |
ec2061a9 | 6103 | } |
725dc051 | 6104 | |
284f19bf JQ |
6105 | /** |
6106 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
6107 | * @param __is Input stream. |
6108 | * @param __str Buffer to store into. | |
6109 | * @param __delim Character marking end of line. | |
284f19bf JQ |
6110 | * @return Reference to the input stream. |
6111 | * | |
93c66bc6 BK |
6112 | * Stores characters from @a __is into @a __str until @a __delim is |
6113 | * found, the end of the stream is encountered, or str.max_size() | |
3b2453a9 JW |
6114 | * is reached. Any previous contents of @a __str are erased. If |
6115 | * @a __delim is encountered, it is extracted but not stored into | |
6116 | * @a __str. | |
284f19bf | 6117 | */ |
725dc051 | 6118 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 6119 | basic_istream<_CharT, _Traits>& |
725dc051 BK |
6120 | getline(basic_istream<_CharT, _Traits>& __is, |
6121 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim); | |
6122 | ||
284f19bf JQ |
6123 | /** |
6124 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
6125 | * @param __is Input stream. |
6126 | * @param __str Buffer to store into. | |
284f19bf JQ |
6127 | * @return Reference to the input stream. |
6128 | * | |
93c66bc6 | 6129 | * Stores characters from is into @a __str until '\n' is |
2a60a9f6 | 6130 | * found, the end of the stream is encountered, or str.max_size() |
3b2453a9 JW |
6131 | * is reached. Any previous contents of @a __str are erased. If |
6132 | * end of line is encountered, it is extracted but not stored into | |
6133 | * @a __str. | |
284f19bf | 6134 | */ |
725dc051 | 6135 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 6136 | inline basic_istream<_CharT, _Traits>& |
725dc051 | 6137 | getline(basic_istream<_CharT, _Traits>& __is, |
70c99f6c | 6138 | basic_string<_CharT, _Traits, _Alloc>& __str) |
19173661 JW |
6139 | { return std::getline(__is, __str, __is.widen('\n')); } |
6140 | ||
6141 | #if __cplusplus >= 201103L | |
6142 | /// Read a line from an rvalue stream into a string. | |
6143 | template<typename _CharT, typename _Traits, typename _Alloc> | |
caff45a6 | 6144 | inline basic_istream<_CharT, _Traits>& |
19173661 JW |
6145 | getline(basic_istream<_CharT, _Traits>&& __is, |
6146 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim) | |
6147 | { return std::getline(__is, __str, __delim); } | |
6148 | ||
6149 | /// Read a line from an rvalue stream into a string. | |
6150 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6151 | inline basic_istream<_CharT, _Traits>& | |
6152 | getline(basic_istream<_CharT, _Traits>&& __is, | |
6153 | basic_string<_CharT, _Traits, _Alloc>& __str) | |
6154 | { return std::getline(__is, __str); } | |
6155 | #endif | |
70c99f6c | 6156 | |
e9fb72e8 PC |
6157 | template<> |
6158 | basic_istream<char>& | |
6159 | getline(basic_istream<char>& __in, basic_string<char>& __str, | |
6160 | char __delim); | |
6161 | ||
6162 | #ifdef _GLIBCXX_USE_WCHAR_T | |
6163 | template<> | |
6164 | basic_istream<wchar_t>& | |
6165 | getline(basic_istream<wchar_t>& __in, basic_string<wchar_t>& __str, | |
6166 | wchar_t __delim); | |
6167 | #endif | |
3cbc7af0 | 6168 | |
12ffa228 BK |
6169 | _GLIBCXX_END_NAMESPACE_VERSION |
6170 | } // namespace | |
7364f286 | 6171 | |
23c64853 | 6172 | #if __cplusplus >= 201103L |
7364f286 | 6173 | |
a5a6b586 | 6174 | #include <ext/string_conversions.h> |
7364f286 | 6175 | |
12ffa228 BK |
6176 | namespace std _GLIBCXX_VISIBILITY(default) |
6177 | { | |
6178 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
34a2b755 | 6179 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 |
7364f286 | 6180 | |
23c64853 | 6181 | #if _GLIBCXX_USE_C99_STDLIB |
a5a6b586 PC |
6182 | // 21.4 Numeric Conversions [string.conversions]. |
6183 | inline int | |
6184 | stoi(const string& __str, size_t* __idx = 0, int __base = 10) | |
6185 | { return __gnu_cxx::__stoa<long, int>(&std::strtol, "stoi", __str.c_str(), | |
6186 | __idx, __base); } | |
6187 | ||
6188 | inline long | |
6189 | stol(const string& __str, size_t* __idx = 0, int __base = 10) | |
6190 | { return __gnu_cxx::__stoa(&std::strtol, "stol", __str.c_str(), | |
6191 | __idx, __base); } | |
6192 | ||
6193 | inline unsigned long | |
6194 | stoul(const string& __str, size_t* __idx = 0, int __base = 10) | |
6195 | { return __gnu_cxx::__stoa(&std::strtoul, "stoul", __str.c_str(), | |
6196 | __idx, __base); } | |
6197 | ||
6198 | inline long long | |
6199 | stoll(const string& __str, size_t* __idx = 0, int __base = 10) | |
6200 | { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(), | |
6201 | __idx, __base); } | |
6202 | ||
6203 | inline unsigned long long | |
6204 | stoull(const string& __str, size_t* __idx = 0, int __base = 10) | |
6205 | { return __gnu_cxx::__stoa(&std::strtoull, "stoull", __str.c_str(), | |
6206 | __idx, __base); } | |
6207 | ||
6208 | // NB: strtof vs strtod. | |
6209 | inline float | |
6210 | stof(const string& __str, size_t* __idx = 0) | |
6211 | { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); } | |
6212 | ||
6213 | inline double | |
6214 | stod(const string& __str, size_t* __idx = 0) | |
6215 | { return __gnu_cxx::__stoa(&std::strtod, "stod", __str.c_str(), __idx); } | |
6216 | ||
6217 | inline long double | |
6218 | stold(const string& __str, size_t* __idx = 0) | |
6219 | { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); } | |
23c64853 | 6220 | #endif // _GLIBCXX_USE_C99_STDLIB |
a5a6b586 | 6221 | |
23c64853 | 6222 | #if _GLIBCXX_USE_C99_STDIO |
a5a6b586 | 6223 | // NB: (v)snprintf vs sprintf. |
a4ecd144 PC |
6224 | |
6225 | // DR 1261. | |
6226 | inline string | |
6227 | to_string(int __val) | |
6228 | { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, 4 * sizeof(int), | |
6229 | "%d", __val); } | |
6230 | ||
6231 | inline string | |
6232 | to_string(unsigned __val) | |
6233 | { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, | |
6234 | 4 * sizeof(unsigned), | |
6235 | "%u", __val); } | |
6236 | ||
6237 | inline string | |
6238 | to_string(long __val) | |
6239 | { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, 4 * sizeof(long), | |
6240 | "%ld", __val); } | |
6241 | ||
6242 | inline string | |
6243 | to_string(unsigned long __val) | |
6244 | { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, | |
6245 | 4 * sizeof(unsigned long), | |
6246 | "%lu", __val); } | |
6247 | ||
a5a6b586 PC |
6248 | inline string |
6249 | to_string(long long __val) | |
6250 | { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, | |
6251 | 4 * sizeof(long long), | |
6252 | "%lld", __val); } | |
6253 | ||
6254 | inline string | |
6255 | to_string(unsigned long long __val) | |
6256 | { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, | |
6257 | 4 * sizeof(unsigned long long), | |
6258 | "%llu", __val); } | |
6259 | ||
a4ecd144 PC |
6260 | inline string |
6261 | to_string(float __val) | |
6262 | { | |
6263 | const int __n = | |
6264 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
6265 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
6266 | "%f", __val); | |
6267 | } | |
6268 | ||
6269 | inline string | |
6270 | to_string(double __val) | |
6271 | { | |
6272 | const int __n = | |
6273 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
6274 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
6275 | "%f", __val); | |
6276 | } | |
6277 | ||
a5a6b586 PC |
6278 | inline string |
6279 | to_string(long double __val) | |
6280 | { | |
6281 | const int __n = | |
6282 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
6283 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
6284 | "%Lf", __val); | |
6285 | } | |
23c64853 | 6286 | #endif // _GLIBCXX_USE_C99_STDIO |
7364f286 | 6287 | |
356510ac | 6288 | #if defined(_GLIBCXX_USE_WCHAR_T) && _GLIBCXX_USE_C99_WCHAR |
a5a6b586 PC |
6289 | inline int |
6290 | stoi(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6291 | { return __gnu_cxx::__stoa<long, int>(&std::wcstol, "stoi", __str.c_str(), | |
6292 | __idx, __base); } | |
6293 | ||
6294 | inline long | |
6295 | stol(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6296 | { return __gnu_cxx::__stoa(&std::wcstol, "stol", __str.c_str(), | |
6297 | __idx, __base); } | |
6298 | ||
6299 | inline unsigned long | |
6300 | stoul(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6301 | { return __gnu_cxx::__stoa(&std::wcstoul, "stoul", __str.c_str(), | |
6302 | __idx, __base); } | |
6303 | ||
6304 | inline long long | |
6305 | stoll(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6306 | { return __gnu_cxx::__stoa(&std::wcstoll, "stoll", __str.c_str(), | |
6307 | __idx, __base); } | |
6308 | ||
6309 | inline unsigned long long | |
6310 | stoull(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6311 | { return __gnu_cxx::__stoa(&std::wcstoull, "stoull", __str.c_str(), | |
6312 | __idx, __base); } | |
6313 | ||
6314 | // NB: wcstof vs wcstod. | |
6315 | inline float | |
6316 | stof(const wstring& __str, size_t* __idx = 0) | |
6317 | { return __gnu_cxx::__stoa(&std::wcstof, "stof", __str.c_str(), __idx); } | |
6318 | ||
6319 | inline double | |
6320 | stod(const wstring& __str, size_t* __idx = 0) | |
6321 | { return __gnu_cxx::__stoa(&std::wcstod, "stod", __str.c_str(), __idx); } | |
6322 | ||
6323 | inline long double | |
6324 | stold(const wstring& __str, size_t* __idx = 0) | |
6325 | { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); } | |
6326 | ||
f37f5fb8 | 6327 | #ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
a4ecd144 PC |
6328 | // DR 1261. |
6329 | inline wstring | |
6330 | to_wstring(int __val) | |
6331 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(int), | |
6332 | L"%d", __val); } | |
6333 | ||
6334 | inline wstring | |
6335 | to_wstring(unsigned __val) | |
6336 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6337 | 4 * sizeof(unsigned), | |
6338 | L"%u", __val); } | |
6339 | ||
6340 | inline wstring | |
6341 | to_wstring(long __val) | |
6342 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(long), | |
6343 | L"%ld", __val); } | |
6344 | ||
6345 | inline wstring | |
6346 | to_wstring(unsigned long __val) | |
6347 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6348 | 4 * sizeof(unsigned long), | |
6349 | L"%lu", __val); } | |
6350 | ||
a5a6b586 PC |
6351 | inline wstring |
6352 | to_wstring(long long __val) | |
6353 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6354 | 4 * sizeof(long long), | |
6355 | L"%lld", __val); } | |
6356 | ||
6357 | inline wstring | |
6358 | to_wstring(unsigned long long __val) | |
6359 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6360 | 4 * sizeof(unsigned long long), | |
6361 | L"%llu", __val); } | |
6362 | ||
a4ecd144 PC |
6363 | inline wstring |
6364 | to_wstring(float __val) | |
6365 | { | |
6366 | const int __n = | |
6367 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
6368 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
6369 | L"%f", __val); | |
6370 | } | |
6371 | ||
6372 | inline wstring | |
6373 | to_wstring(double __val) | |
6374 | { | |
6375 | const int __n = | |
6376 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
6377 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
6378 | L"%f", __val); | |
6379 | } | |
6380 | ||
a5a6b586 PC |
6381 | inline wstring |
6382 | to_wstring(long double __val) | |
6383 | { | |
6384 | const int __n = | |
6385 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
6386 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
6387 | L"%Lf", __val); | |
6388 | } | |
f37f5fb8 | 6389 | #endif // _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
23c64853 | 6390 | #endif // _GLIBCXX_USE_WCHAR_T && _GLIBCXX_USE_C99_WCHAR |
7364f286 | 6391 | |
34a2b755 | 6392 | _GLIBCXX_END_NAMESPACE_CXX11 |
12ffa228 BK |
6393 | _GLIBCXX_END_NAMESPACE_VERSION |
6394 | } // namespace | |
725dc051 | 6395 | |
23c64853 | 6396 | #endif /* C++11 */ |
15d81a3c | 6397 | |
734f5023 | 6398 | #if __cplusplus >= 201103L |
15d81a3c PC |
6399 | |
6400 | #include <bits/functional_hash.h> | |
6401 | ||
12ffa228 BK |
6402 | namespace std _GLIBCXX_VISIBILITY(default) |
6403 | { | |
6404 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
15d81a3c PC |
6405 | |
6406 | // DR 1182. | |
6407 | ||
6408 | #ifndef _GLIBCXX_COMPATIBILITY_CXX0X | |
6409 | /// std::hash specialization for string. | |
6410 | template<> | |
6411 | struct hash<string> | |
5d64ee19 | 6412 | : public __hash_base<size_t, string> |
15d81a3c PC |
6413 | { |
6414 | size_t | |
72f1c34b | 6415 | operator()(const string& __s) const noexcept |
e7f72940 | 6416 | { return std::_Hash_impl::hash(__s.data(), __s.length()); } |
15d81a3c PC |
6417 | }; |
6418 | ||
4df047dd FD |
6419 | template<> |
6420 | struct __is_fast_hash<hash<string>> : std::false_type | |
6421 | { }; | |
6422 | ||
15d81a3c PC |
6423 | #ifdef _GLIBCXX_USE_WCHAR_T |
6424 | /// std::hash specialization for wstring. | |
6425 | template<> | |
6426 | struct hash<wstring> | |
5d64ee19 | 6427 | : public __hash_base<size_t, wstring> |
15d81a3c PC |
6428 | { |
6429 | size_t | |
72f1c34b | 6430 | operator()(const wstring& __s) const noexcept |
e7f72940 MA |
6431 | { return std::_Hash_impl::hash(__s.data(), |
6432 | __s.length() * sizeof(wchar_t)); } | |
15d81a3c | 6433 | }; |
4df047dd FD |
6434 | |
6435 | template<> | |
6436 | struct __is_fast_hash<hash<wstring>> : std::false_type | |
6437 | { }; | |
a5a6b586 | 6438 | #endif |
15d81a3c PC |
6439 | #endif /* _GLIBCXX_COMPATIBILITY_CXX0X */ |
6440 | ||
6441 | #ifdef _GLIBCXX_USE_C99_STDINT_TR1 | |
6442 | /// std::hash specialization for u16string. | |
6443 | template<> | |
6444 | struct hash<u16string> | |
5d64ee19 | 6445 | : public __hash_base<size_t, u16string> |
15d81a3c PC |
6446 | { |
6447 | size_t | |
72f1c34b | 6448 | operator()(const u16string& __s) const noexcept |
e7f72940 MA |
6449 | { return std::_Hash_impl::hash(__s.data(), |
6450 | __s.length() * sizeof(char16_t)); } | |
15d81a3c PC |
6451 | }; |
6452 | ||
4df047dd FD |
6453 | template<> |
6454 | struct __is_fast_hash<hash<u16string>> : std::false_type | |
6455 | { }; | |
6456 | ||
15d81a3c PC |
6457 | /// std::hash specialization for u32string. |
6458 | template<> | |
6459 | struct hash<u32string> | |
5d64ee19 | 6460 | : public __hash_base<size_t, u32string> |
15d81a3c PC |
6461 | { |
6462 | size_t | |
72f1c34b | 6463 | operator()(const u32string& __s) const noexcept |
e7f72940 MA |
6464 | { return std::_Hash_impl::hash(__s.data(), |
6465 | __s.length() * sizeof(char32_t)); } | |
15d81a3c | 6466 | }; |
4df047dd FD |
6467 | |
6468 | template<> | |
6469 | struct __is_fast_hash<hash<u32string>> : std::false_type | |
6470 | { }; | |
15d81a3c PC |
6471 | #endif |
6472 | ||
1c9f675f ESR |
6473 | #if __cplusplus > 201103L |
6474 | ||
a15f7cb8 ESR |
6475 | #define __cpp_lib_string_udls 201304 |
6476 | ||
0372af98 ESR |
6477 | inline namespace literals |
6478 | { | |
6479 | inline namespace string_literals | |
6480 | { | |
34a2b755 | 6481 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6482 | inline basic_string<char> |
e9a64492 | 6483 | operator""s(const char* __str, size_t __len) |
88c4d6b7 | 6484 | { return basic_string<char>{__str, __len}; } |
1c9f675f ESR |
6485 | |
6486 | #ifdef _GLIBCXX_USE_WCHAR_T | |
34a2b755 | 6487 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6488 | inline basic_string<wchar_t> |
e9a64492 | 6489 | operator""s(const wchar_t* __str, size_t __len) |
88c4d6b7 | 6490 | { return basic_string<wchar_t>{__str, __len}; } |
1c9f675f ESR |
6491 | #endif |
6492 | ||
6493 | #ifdef _GLIBCXX_USE_C99_STDINT_TR1 | |
34a2b755 | 6494 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6495 | inline basic_string<char16_t> |
e9a64492 | 6496 | operator""s(const char16_t* __str, size_t __len) |
88c4d6b7 | 6497 | { return basic_string<char16_t>{__str, __len}; } |
1c9f675f | 6498 | |
34a2b755 | 6499 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6500 | inline basic_string<char32_t> |
e9a64492 | 6501 | operator""s(const char32_t* __str, size_t __len) |
88c4d6b7 | 6502 | { return basic_string<char32_t>{__str, __len}; } |
1c9f675f ESR |
6503 | #endif |
6504 | ||
88c4d6b7 ESR |
6505 | } // inline namespace string_literals |
6506 | } // inline namespace literals | |
6507 | ||
6508 | #endif // __cplusplus > 201103L | |
1c9f675f | 6509 | |
4a15d842 | 6510 | _GLIBCXX_END_NAMESPACE_VERSION |
1c9f675f ESR |
6511 | } // namespace std |
6512 | ||
734f5023 | 6513 | #endif // C++11 |
a5a6b586 | 6514 | |
3d7c150e | 6515 | #endif /* _BASIC_STRING_H */ |