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725dc051 BK |
1 | // Components for manipulating sequences of characters -*- C++ -*- |
2 | ||
8d9254fc | 3 | // Copyright (C) 1997-2020 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 | |
1a289fa3 | 47 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
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 | ||
3eb1eda1 | 103 | protected: |
34a2b755 JW |
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 | ||
3eb1eda1 | 111 | private: |
1a289fa3 | 112 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
113 | // A helper type for avoiding boiler-plate. |
114 | typedef basic_string_view<_CharT, _Traits> __sv_type; | |
92daf2de JW |
115 | |
116 | template<typename _Tp, typename _Res> | |
117 | using _If_sv = enable_if_t< | |
118 | __and_<is_convertible<const _Tp&, __sv_type>, | |
4cf5930f | 119 | __not_<is_convertible<const _Tp*, const basic_string*>>, |
92daf2de JW |
120 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, |
121 | _Res>; | |
df66af3b DK |
122 | |
123 | // Allows an implicit conversion to __sv_type. | |
124 | static __sv_type | |
125 | _S_to_string_view(__sv_type __svt) noexcept | |
126 | { return __svt; } | |
127 | ||
128 | // Wraps a string_view by explicit conversion and thus | |
129 | // allows to add an internal constructor that does not | |
130 | // participate in overload resolution when a string_view | |
131 | // is provided. | |
132 | struct __sv_wrapper | |
133 | { | |
134 | explicit __sv_wrapper(__sv_type __sv) noexcept : _M_sv(__sv) { } | |
135 | __sv_type _M_sv; | |
136 | }; | |
1a289fa3 JW |
137 | |
138 | /** | |
139 | * @brief Only internally used: Construct string from a string view | |
140 | * wrapper. | |
141 | * @param __svw string view wrapper. | |
142 | * @param __a Allocator to use. | |
143 | */ | |
144 | explicit | |
145 | basic_string(__sv_wrapper __svw, const _Alloc& __a) | |
146 | : basic_string(__svw._M_sv.data(), __svw._M_sv.size(), __a) { } | |
ca8f2cb1 VV |
147 | #endif |
148 | ||
34a2b755 JW |
149 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html |
150 | struct _Alloc_hider : allocator_type // TODO check __is_final | |
151 | { | |
8cab3d18 | 152 | #if __cplusplus < 201103L |
34a2b755 JW |
153 | _Alloc_hider(pointer __dat, const _Alloc& __a = _Alloc()) |
154 | : allocator_type(__a), _M_p(__dat) { } | |
8cab3d18 JW |
155 | #else |
156 | _Alloc_hider(pointer __dat, const _Alloc& __a) | |
157 | : allocator_type(__a), _M_p(__dat) { } | |
158 | ||
159 | _Alloc_hider(pointer __dat, _Alloc&& __a = _Alloc()) | |
160 | : allocator_type(std::move(__a)), _M_p(__dat) { } | |
161 | #endif | |
34a2b755 JW |
162 | |
163 | pointer _M_p; // The actual data. | |
164 | }; | |
165 | ||
166 | _Alloc_hider _M_dataplus; | |
167 | size_type _M_string_length; | |
168 | ||
59aa28e8 | 169 | enum { _S_local_capacity = 15 / sizeof(_CharT) }; |
34a2b755 JW |
170 | |
171 | union | |
172 | { | |
173 | _CharT _M_local_buf[_S_local_capacity + 1]; | |
174 | size_type _M_allocated_capacity; | |
175 | }; | |
176 | ||
177 | void | |
178 | _M_data(pointer __p) | |
179 | { _M_dataplus._M_p = __p; } | |
180 | ||
181 | void | |
182 | _M_length(size_type __length) | |
183 | { _M_string_length = __length; } | |
184 | ||
185 | pointer | |
186 | _M_data() const | |
187 | { return _M_dataplus._M_p; } | |
188 | ||
189 | pointer | |
190 | _M_local_data() | |
191 | { | |
192 | #if __cplusplus >= 201103L | |
193 | return std::pointer_traits<pointer>::pointer_to(*_M_local_buf); | |
194 | #else | |
195 | return pointer(_M_local_buf); | |
196 | #endif | |
197 | } | |
198 | ||
199 | const_pointer | |
200 | _M_local_data() const | |
201 | { | |
202 | #if __cplusplus >= 201103L | |
203 | return std::pointer_traits<const_pointer>::pointer_to(*_M_local_buf); | |
204 | #else | |
205 | return const_pointer(_M_local_buf); | |
206 | #endif | |
207 | } | |
208 | ||
209 | void | |
210 | _M_capacity(size_type __capacity) | |
211 | { _M_allocated_capacity = __capacity; } | |
212 | ||
213 | void | |
214 | _M_set_length(size_type __n) | |
215 | { | |
216 | _M_length(__n); | |
217 | traits_type::assign(_M_data()[__n], _CharT()); | |
218 | } | |
219 | ||
220 | bool | |
221 | _M_is_local() const | |
222 | { return _M_data() == _M_local_data(); } | |
223 | ||
224 | // Create & Destroy | |
225 | pointer | |
226 | _M_create(size_type&, size_type); | |
227 | ||
228 | void | |
229 | _M_dispose() | |
230 | { | |
231 | if (!_M_is_local()) | |
232 | _M_destroy(_M_allocated_capacity); | |
233 | } | |
234 | ||
235 | void | |
236 | _M_destroy(size_type __size) throw() | |
237 | { _Alloc_traits::deallocate(_M_get_allocator(), _M_data(), __size + 1); } | |
238 | ||
239 | // _M_construct_aux is used to implement the 21.3.1 para 15 which | |
240 | // requires special behaviour if _InIterator is an integral type | |
241 | template<typename _InIterator> | |
242 | void | |
243 | _M_construct_aux(_InIterator __beg, _InIterator __end, | |
244 | std::__false_type) | |
245 | { | |
246 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; | |
247 | _M_construct(__beg, __end, _Tag()); | |
248 | } | |
249 | ||
250 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
251 | // 438. Ambiguity in the "do the right thing" clause | |
252 | template<typename _Integer> | |
253 | void | |
254 | _M_construct_aux(_Integer __beg, _Integer __end, std::__true_type) | |
255 | { _M_construct_aux_2(static_cast<size_type>(__beg), __end); } | |
256 | ||
257 | void | |
258 | _M_construct_aux_2(size_type __req, _CharT __c) | |
259 | { _M_construct(__req, __c); } | |
260 | ||
261 | template<typename _InIterator> | |
262 | void | |
263 | _M_construct(_InIterator __beg, _InIterator __end) | |
264 | { | |
265 | typedef typename std::__is_integer<_InIterator>::__type _Integral; | |
266 | _M_construct_aux(__beg, __end, _Integral()); | |
267 | } | |
268 | ||
269 | // For Input Iterators, used in istreambuf_iterators, etc. | |
270 | template<typename _InIterator> | |
271 | void | |
272 | _M_construct(_InIterator __beg, _InIterator __end, | |
273 | std::input_iterator_tag); | |
274 | ||
275 | // For forward_iterators up to random_access_iterators, used for | |
276 | // string::iterator, _CharT*, etc. | |
277 | template<typename _FwdIterator> | |
278 | void | |
279 | _M_construct(_FwdIterator __beg, _FwdIterator __end, | |
280 | std::forward_iterator_tag); | |
281 | ||
282 | void | |
283 | _M_construct(size_type __req, _CharT __c); | |
284 | ||
285 | allocator_type& | |
286 | _M_get_allocator() | |
287 | { return _M_dataplus; } | |
288 | ||
289 | const allocator_type& | |
290 | _M_get_allocator() const | |
291 | { return _M_dataplus; } | |
292 | ||
293 | private: | |
294 | ||
295 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
296 | // The explicit instantiations in misc-inst.cc require this due to | |
297 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64063 | |
298 | template<typename _Tp, bool _Requires = | |
299 | !__are_same<_Tp, _CharT*>::__value | |
300 | && !__are_same<_Tp, const _CharT*>::__value | |
301 | && !__are_same<_Tp, iterator>::__value | |
302 | && !__are_same<_Tp, const_iterator>::__value> | |
303 | struct __enable_if_not_native_iterator | |
304 | { typedef basic_string& __type; }; | |
305 | template<typename _Tp> | |
306 | struct __enable_if_not_native_iterator<_Tp, false> { }; | |
307 | #endif | |
308 | ||
309 | size_type | |
310 | _M_check(size_type __pos, const char* __s) const | |
311 | { | |
312 | if (__pos > this->size()) | |
313 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > " | |
314 | "this->size() (which is %zu)"), | |
315 | __s, __pos, this->size()); | |
316 | return __pos; | |
317 | } | |
318 | ||
319 | void | |
320 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const | |
321 | { | |
322 | if (this->max_size() - (this->size() - __n1) < __n2) | |
323 | __throw_length_error(__N(__s)); | |
324 | } | |
325 | ||
326 | ||
327 | // NB: _M_limit doesn't check for a bad __pos value. | |
328 | size_type | |
329 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT | |
330 | { | |
331 | const bool __testoff = __off < this->size() - __pos; | |
332 | return __testoff ? __off : this->size() - __pos; | |
333 | } | |
334 | ||
335 | // True if _Rep and source do not overlap. | |
336 | bool | |
337 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT | |
338 | { | |
2d60da10 JW |
339 | return (less<const _CharT*>()(__s, _M_data()) |
340 | || less<const _CharT*>()(_M_data() + this->size(), __s)); | |
34a2b755 JW |
341 | } |
342 | ||
343 | // When __n = 1 way faster than the general multichar | |
344 | // traits_type::copy/move/assign. | |
345 | static void | |
346 | _S_copy(_CharT* __d, const _CharT* __s, size_type __n) | |
347 | { | |
348 | if (__n == 1) | |
349 | traits_type::assign(*__d, *__s); | |
350 | else | |
351 | traits_type::copy(__d, __s, __n); | |
352 | } | |
353 | ||
354 | static void | |
355 | _S_move(_CharT* __d, const _CharT* __s, size_type __n) | |
356 | { | |
357 | if (__n == 1) | |
358 | traits_type::assign(*__d, *__s); | |
359 | else | |
360 | traits_type::move(__d, __s, __n); | |
361 | } | |
362 | ||
363 | static void | |
364 | _S_assign(_CharT* __d, size_type __n, _CharT __c) | |
365 | { | |
366 | if (__n == 1) | |
367 | traits_type::assign(*__d, __c); | |
368 | else | |
369 | traits_type::assign(__d, __n, __c); | |
370 | } | |
371 | ||
372 | // _S_copy_chars is a separate template to permit specialization | |
373 | // to optimize for the common case of pointers as iterators. | |
374 | template<class _Iterator> | |
375 | static void | |
376 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) | |
34a2b755 | 377 | { |
f970a17d | 378 | for (; __k1 != __k2; ++__k1, (void)++__p) |
34a2b755 JW |
379 | traits_type::assign(*__p, *__k1); // These types are off. |
380 | } | |
381 | ||
382 | static void | |
383 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPT | |
384 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
385 | ||
386 | static void | |
387 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) | |
388 | _GLIBCXX_NOEXCEPT | |
389 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
390 | ||
391 | static void | |
392 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPT | |
393 | { _S_copy(__p, __k1, __k2 - __k1); } | |
394 | ||
395 | static void | |
396 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) | |
397 | _GLIBCXX_NOEXCEPT | |
398 | { _S_copy(__p, __k1, __k2 - __k1); } | |
399 | ||
400 | static int | |
401 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPT | |
402 | { | |
403 | const difference_type __d = difference_type(__n1 - __n2); | |
404 | ||
405 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) | |
406 | return __gnu_cxx::__numeric_traits<int>::__max; | |
407 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) | |
408 | return __gnu_cxx::__numeric_traits<int>::__min; | |
409 | else | |
410 | return int(__d); | |
411 | } | |
412 | ||
413 | void | |
a7d47f35 | 414 | _M_assign(const basic_string&); |
34a2b755 JW |
415 | |
416 | void | |
417 | _M_mutate(size_type __pos, size_type __len1, const _CharT* __s, | |
418 | size_type __len2); | |
419 | ||
420 | void | |
421 | _M_erase(size_type __pos, size_type __n); | |
422 | ||
423 | public: | |
424 | // Construct/copy/destroy: | |
425 | // NB: We overload ctors in some cases instead of using default | |
426 | // arguments, per 17.4.4.4 para. 2 item 2. | |
427 | ||
428 | /** | |
429 | * @brief Default constructor creates an empty string. | |
430 | */ | |
bcb896ab | 431 | basic_string() |
5caff414 | 432 | _GLIBCXX_NOEXCEPT_IF(is_nothrow_default_constructible<_Alloc>::value) |
34a2b755 JW |
433 | : _M_dataplus(_M_local_data()) |
434 | { _M_set_length(0); } | |
435 | ||
436 | /** | |
437 | * @brief Construct an empty string using allocator @a a. | |
438 | */ | |
439 | explicit | |
5caff414 | 440 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPT |
34a2b755 JW |
441 | : _M_dataplus(_M_local_data(), __a) |
442 | { _M_set_length(0); } | |
443 | ||
444 | /** | |
445 | * @brief Construct string with copy of value of @a __str. | |
446 | * @param __str Source string. | |
447 | */ | |
448 | basic_string(const basic_string& __str) | |
5caff414 JW |
449 | : _M_dataplus(_M_local_data(), |
450 | _Alloc_traits::_S_select_on_copy(__str._M_get_allocator())) | |
34a2b755 JW |
451 | { _M_construct(__str._M_data(), __str._M_data() + __str.length()); } |
452 | ||
86bbf15b JW |
453 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
454 | // 2583. no way to supply an allocator for basic_string(str, pos) | |
34a2b755 JW |
455 | /** |
456 | * @brief Construct string as copy of a substring. | |
457 | * @param __str Source string. | |
458 | * @param __pos Index of first character to copy from. | |
86bbf15b | 459 | * @param __a Allocator to use. |
34a2b755 | 460 | */ |
34a2b755 | 461 | basic_string(const basic_string& __str, size_type __pos, |
86bbf15b JW |
462 | const _Alloc& __a = _Alloc()) |
463 | : _M_dataplus(_M_local_data(), __a) | |
464 | { | |
465 | const _CharT* __start = __str._M_data() | |
466 | + __str._M_check(__pos, "basic_string::basic_string"); | |
467 | _M_construct(__start, __start + __str._M_limit(__pos, npos)); | |
468 | } | |
469 | ||
470 | /** | |
471 | * @brief Construct string as copy of a substring. | |
472 | * @param __str Source string. | |
473 | * @param __pos Index of first character to copy from. | |
474 | * @param __n Number of characters to copy. | |
475 | */ | |
476 | basic_string(const basic_string& __str, size_type __pos, | |
477 | size_type __n) | |
34a2b755 JW |
478 | : _M_dataplus(_M_local_data()) |
479 | { | |
2d60da10 | 480 | const _CharT* __start = __str._M_data() |
34a2b755 JW |
481 | + __str._M_check(__pos, "basic_string::basic_string"); |
482 | _M_construct(__start, __start + __str._M_limit(__pos, __n)); | |
483 | } | |
484 | ||
485 | /** | |
486 | * @brief Construct string as copy of a substring. | |
487 | * @param __str Source string. | |
488 | * @param __pos Index of first character to copy from. | |
86bbf15b | 489 | * @param __n Number of characters to copy. |
34a2b755 JW |
490 | * @param __a Allocator to use. |
491 | */ | |
492 | basic_string(const basic_string& __str, size_type __pos, | |
493 | size_type __n, const _Alloc& __a) | |
494 | : _M_dataplus(_M_local_data(), __a) | |
495 | { | |
2d60da10 JW |
496 | const _CharT* __start |
497 | = __str._M_data() + __str._M_check(__pos, "string::string"); | |
34a2b755 JW |
498 | _M_construct(__start, __start + __str._M_limit(__pos, __n)); |
499 | } | |
500 | ||
501 | /** | |
502 | * @brief Construct string initialized by a character %array. | |
503 | * @param __s Source character %array. | |
504 | * @param __n Number of characters to copy. | |
505 | * @param __a Allocator to use (default is default allocator). | |
506 | * | |
507 | * NB: @a __s must have at least @a __n characters, '\\0' | |
508 | * has no special meaning. | |
509 | */ | |
510 | basic_string(const _CharT* __s, size_type __n, | |
511 | const _Alloc& __a = _Alloc()) | |
512 | : _M_dataplus(_M_local_data(), __a) | |
513 | { _M_construct(__s, __s + __n); } | |
514 | ||
515 | /** | |
516 | * @brief Construct string as copy of a C string. | |
517 | * @param __s Source C string. | |
518 | * @param __a Allocator to use (default is default allocator). | |
519 | */ | |
5d84e6c5 JW |
520 | #if __cpp_deduction_guides && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
521 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
522 | // 3076. basic_string CTAD ambiguity | |
523 | template<typename = _RequireAllocator<_Alloc>> | |
524 | #endif | |
b26fd416 | 525 | __attribute__((__nonnull__)) |
34a2b755 JW |
526 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()) |
527 | : _M_dataplus(_M_local_data(), __a) | |
528 | { _M_construct(__s, __s ? __s + traits_type::length(__s) : __s+npos); } | |
529 | ||
530 | /** | |
531 | * @brief Construct string as multiple characters. | |
532 | * @param __n Number of characters. | |
533 | * @param __c Character to use. | |
534 | * @param __a Allocator to use (default is default allocator). | |
535 | */ | |
5d84e6c5 JW |
536 | #if __cpp_deduction_guides && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
537 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
538 | // 3076. basic_string CTAD ambiguity | |
539 | template<typename = _RequireAllocator<_Alloc>> | |
540 | #endif | |
34a2b755 JW |
541 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()) |
542 | : _M_dataplus(_M_local_data(), __a) | |
543 | { _M_construct(__n, __c); } | |
544 | ||
545 | #if __cplusplus >= 201103L | |
546 | /** | |
547 | * @brief Move construct string. | |
548 | * @param __str Source string. | |
549 | * | |
550 | * The newly-created string contains the exact contents of @a __str. | |
551 | * @a __str is a valid, but unspecified string. | |
552 | **/ | |
553 | basic_string(basic_string&& __str) noexcept | |
554 | : _M_dataplus(_M_local_data(), std::move(__str._M_get_allocator())) | |
555 | { | |
556 | if (__str._M_is_local()) | |
557 | { | |
faa7d78e JW |
558 | traits_type::copy(_M_local_buf, __str._M_local_buf, |
559 | _S_local_capacity + 1); | |
34a2b755 JW |
560 | } |
561 | else | |
562 | { | |
563 | _M_data(__str._M_data()); | |
564 | _M_capacity(__str._M_allocated_capacity); | |
565 | } | |
566 | ||
567 | // Must use _M_length() here not _M_set_length() because | |
568 | // basic_stringbuf relies on writing into unallocated capacity so | |
569 | // we mess up the contents if we put a '\0' in the string. | |
570 | _M_length(__str.length()); | |
571 | __str._M_data(__str._M_local_data()); | |
572 | __str._M_set_length(0); | |
573 | } | |
574 | ||
575 | /** | |
576 | * @brief Construct string from an initializer %list. | |
577 | * @param __l std::initializer_list of characters. | |
578 | * @param __a Allocator to use (default is default allocator). | |
579 | */ | |
580 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()) | |
581 | : _M_dataplus(_M_local_data(), __a) | |
582 | { _M_construct(__l.begin(), __l.end()); } | |
583 | ||
584 | basic_string(const basic_string& __str, const _Alloc& __a) | |
585 | : _M_dataplus(_M_local_data(), __a) | |
586 | { _M_construct(__str.begin(), __str.end()); } | |
587 | ||
588 | basic_string(basic_string&& __str, const _Alloc& __a) | |
5caff414 | 589 | noexcept(_Alloc_traits::_S_always_equal()) |
34a2b755 JW |
590 | : _M_dataplus(_M_local_data(), __a) |
591 | { | |
5caff414 JW |
592 | if (__str._M_is_local()) |
593 | { | |
594 | traits_type::copy(_M_local_buf, __str._M_local_buf, | |
595 | _S_local_capacity + 1); | |
596 | _M_length(__str.length()); | |
597 | __str._M_set_length(0); | |
598 | } | |
599 | else if (_Alloc_traits::_S_always_equal() | |
600 | || __str.get_allocator() == __a) | |
601 | { | |
602 | _M_data(__str._M_data()); | |
603 | _M_length(__str.length()); | |
604 | _M_capacity(__str._M_allocated_capacity); | |
605 | __str._M_data(__str._M_local_buf); | |
606 | __str._M_set_length(0); | |
607 | } | |
34a2b755 JW |
608 | else |
609 | _M_construct(__str.begin(), __str.end()); | |
610 | } | |
611 | ||
612 | #endif // C++11 | |
613 | ||
614 | /** | |
615 | * @brief Construct string as copy of a range. | |
616 | * @param __beg Start of range. | |
617 | * @param __end End of range. | |
618 | * @param __a Allocator to use (default is default allocator). | |
619 | */ | |
620 | #if __cplusplus >= 201103L | |
621 | template<typename _InputIterator, | |
622 | typename = std::_RequireInputIter<_InputIterator>> | |
623 | #else | |
624 | template<typename _InputIterator> | |
625 | #endif | |
626 | basic_string(_InputIterator __beg, _InputIterator __end, | |
627 | const _Alloc& __a = _Alloc()) | |
628 | : _M_dataplus(_M_local_data(), __a) | |
629 | { _M_construct(__beg, __end); } | |
630 | ||
1a289fa3 | 631 | #if __cplusplus >= 201703L |
bf56b0b8 JW |
632 | /** |
633 | * @brief Construct string from a substring of a string_view. | |
df66af3b | 634 | * @param __t Source object convertible to string view. |
bf56b0b8 JW |
635 | * @param __pos The index of the first character to copy from __t. |
636 | * @param __n The number of characters to copy from __t. | |
637 | * @param __a Allocator to use. | |
638 | */ | |
3663671a | 639 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
bf56b0b8 JW |
640 | basic_string(const _Tp& __t, size_type __pos, size_type __n, |
641 | const _Alloc& __a = _Alloc()) | |
df66af3b | 642 | : basic_string(_S_to_string_view(__t).substr(__pos, __n), __a) { } |
bf56b0b8 | 643 | |
ca8f2cb1 VV |
644 | /** |
645 | * @brief Construct string from a string_view. | |
df66af3b | 646 | * @param __t Source object convertible to string view. |
ca8f2cb1 VV |
647 | * @param __a Allocator to use (default is default allocator). |
648 | */ | |
df66af3b DK |
649 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
650 | explicit | |
651 | basic_string(const _Tp& __t, const _Alloc& __a = _Alloc()) | |
652 | : basic_string(__sv_wrapper(_S_to_string_view(__t)), __a) { } | |
ca8f2cb1 VV |
653 | #endif // C++17 |
654 | ||
34a2b755 JW |
655 | /** |
656 | * @brief Destroy the string instance. | |
657 | */ | |
658 | ~basic_string() | |
659 | { _M_dispose(); } | |
660 | ||
661 | /** | |
662 | * @brief Assign the value of @a str to this string. | |
663 | * @param __str Source string. | |
664 | */ | |
665 | basic_string& | |
666 | operator=(const basic_string& __str) | |
5caff414 | 667 | { |
11d10beb | 668 | return this->assign(__str); |
5caff414 | 669 | } |
34a2b755 JW |
670 | |
671 | /** | |
672 | * @brief Copy contents of @a s into this string. | |
673 | * @param __s Source null-terminated string. | |
674 | */ | |
675 | basic_string& | |
676 | operator=(const _CharT* __s) | |
677 | { return this->assign(__s); } | |
678 | ||
679 | /** | |
680 | * @brief Set value to string of length 1. | |
681 | * @param __c Source character. | |
682 | * | |
683 | * Assigning to a character makes this string length 1 and | |
684 | * (*this)[0] == @a c. | |
685 | */ | |
686 | basic_string& | |
687 | operator=(_CharT __c) | |
688 | { | |
689 | this->assign(1, __c); | |
690 | return *this; | |
691 | } | |
692 | ||
693 | #if __cplusplus >= 201103L | |
694 | /** | |
695 | * @brief Move assign the value of @a str to this string. | |
696 | * @param __str Source string. | |
697 | * | |
698 | * The contents of @a str are moved into this string (without copying). | |
699 | * @a str is a valid, but unspecified string. | |
700 | **/ | |
34a2b755 JW |
701 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
702 | // 2063. Contradictory requirements for string move assignment | |
703 | basic_string& | |
704 | operator=(basic_string&& __str) | |
5caff414 | 705 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 | 706 | { |
5caff414 JW |
707 | if (!_M_is_local() && _Alloc_traits::_S_propagate_on_move_assign() |
708 | && !_Alloc_traits::_S_always_equal() | |
709 | && _M_get_allocator() != __str._M_get_allocator()) | |
710 | { | |
711 | // Destroy existing storage before replacing allocator. | |
712 | _M_destroy(_M_allocated_capacity); | |
713 | _M_data(_M_local_data()); | |
714 | _M_set_length(0); | |
715 | } | |
716 | // Replace allocator if POCMA is true. | |
717 | std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator()); | |
718 | ||
71e09389 JW |
719 | if (__str._M_is_local()) |
720 | { | |
721 | // We've always got room for a short string, just copy it. | |
722 | if (__str.size()) | |
723 | this->_S_copy(_M_data(), __str._M_data(), __str.size()); | |
724 | _M_set_length(__str.size()); | |
725 | } | |
726 | else if (_Alloc_traits::_S_propagate_on_move_assign() | |
727 | || _Alloc_traits::_S_always_equal() | |
728 | || _M_get_allocator() == __str._M_get_allocator()) | |
5caff414 | 729 | { |
71e09389 | 730 | // Just move the allocated pointer, our allocator can free it. |
5caff414 JW |
731 | pointer __data = nullptr; |
732 | size_type __capacity; | |
733 | if (!_M_is_local()) | |
734 | { | |
735 | if (_Alloc_traits::_S_always_equal()) | |
736 | { | |
71e09389 | 737 | // __str can reuse our existing storage. |
5caff414 JW |
738 | __data = _M_data(); |
739 | __capacity = _M_allocated_capacity; | |
740 | } | |
71e09389 | 741 | else // __str can't use it, so free it. |
5caff414 JW |
742 | _M_destroy(_M_allocated_capacity); |
743 | } | |
744 | ||
745 | _M_data(__str._M_data()); | |
746 | _M_length(__str.length()); | |
747 | _M_capacity(__str._M_allocated_capacity); | |
748 | if (__data) | |
749 | { | |
750 | __str._M_data(__data); | |
751 | __str._M_capacity(__capacity); | |
752 | } | |
753 | else | |
754 | __str._M_data(__str._M_local_buf); | |
755 | } | |
71e09389 JW |
756 | else // Need to do a deep copy |
757 | assign(__str); | |
5caff414 | 758 | __str.clear(); |
34a2b755 JW |
759 | return *this; |
760 | } | |
761 | ||
762 | /** | |
763 | * @brief Set value to string constructed from initializer %list. | |
764 | * @param __l std::initializer_list. | |
765 | */ | |
766 | basic_string& | |
767 | operator=(initializer_list<_CharT> __l) | |
768 | { | |
769 | this->assign(__l.begin(), __l.size()); | |
770 | return *this; | |
771 | } | |
772 | #endif // C++11 | |
773 | ||
1a289fa3 | 774 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
775 | /** |
776 | * @brief Set value to string constructed from a string_view. | |
df66af3b | 777 | * @param __svt An object convertible to string_view. |
ca8f2cb1 | 778 | */ |
df66af3b DK |
779 | template<typename _Tp> |
780 | _If_sv<_Tp, basic_string&> | |
781 | operator=(const _Tp& __svt) | |
782 | { return this->assign(__svt); } | |
ca8f2cb1 VV |
783 | |
784 | /** | |
785 | * @brief Convert to a string_view. | |
786 | * @return A string_view. | |
787 | */ | |
788 | operator __sv_type() const noexcept | |
df66af3b | 789 | { return __sv_type(data(), size()); } |
ca8f2cb1 VV |
790 | #endif // C++17 |
791 | ||
34a2b755 JW |
792 | // Iterators: |
793 | /** | |
794 | * Returns a read/write iterator that points to the first character in | |
795 | * the %string. | |
796 | */ | |
797 | iterator | |
798 | begin() _GLIBCXX_NOEXCEPT | |
799 | { return iterator(_M_data()); } | |
800 | ||
801 | /** | |
802 | * Returns a read-only (constant) iterator that points to the first | |
803 | * character in the %string. | |
804 | */ | |
805 | const_iterator | |
806 | begin() const _GLIBCXX_NOEXCEPT | |
807 | { return const_iterator(_M_data()); } | |
808 | ||
809 | /** | |
810 | * Returns a read/write iterator that points one past the last | |
811 | * character in the %string. | |
812 | */ | |
813 | iterator | |
814 | end() _GLIBCXX_NOEXCEPT | |
815 | { return iterator(_M_data() + this->size()); } | |
816 | ||
817 | /** | |
818 | * Returns a read-only (constant) iterator that points one past the | |
819 | * last character in the %string. | |
820 | */ | |
821 | const_iterator | |
822 | end() const _GLIBCXX_NOEXCEPT | |
823 | { return const_iterator(_M_data() + this->size()); } | |
824 | ||
825 | /** | |
826 | * Returns a read/write reverse iterator that points to the last | |
827 | * character in the %string. Iteration is done in reverse element | |
828 | * order. | |
829 | */ | |
830 | reverse_iterator | |
831 | rbegin() _GLIBCXX_NOEXCEPT | |
832 | { return reverse_iterator(this->end()); } | |
833 | ||
834 | /** | |
835 | * Returns a read-only (constant) reverse iterator that points | |
836 | * to the last character in the %string. Iteration is done in | |
837 | * reverse element order. | |
838 | */ | |
839 | const_reverse_iterator | |
840 | rbegin() const _GLIBCXX_NOEXCEPT | |
841 | { return const_reverse_iterator(this->end()); } | |
842 | ||
843 | /** | |
844 | * Returns a read/write reverse iterator that points to one before the | |
845 | * first character in the %string. Iteration is done in reverse | |
846 | * element order. | |
847 | */ | |
848 | reverse_iterator | |
849 | rend() _GLIBCXX_NOEXCEPT | |
850 | { return reverse_iterator(this->begin()); } | |
851 | ||
852 | /** | |
853 | * Returns a read-only (constant) reverse iterator that points | |
854 | * to one before the first character in the %string. Iteration | |
855 | * is done in reverse element order. | |
856 | */ | |
857 | const_reverse_iterator | |
858 | rend() const _GLIBCXX_NOEXCEPT | |
859 | { return const_reverse_iterator(this->begin()); } | |
860 | ||
861 | #if __cplusplus >= 201103L | |
862 | /** | |
863 | * Returns a read-only (constant) iterator that points to the first | |
864 | * character in the %string. | |
865 | */ | |
866 | const_iterator | |
867 | cbegin() const noexcept | |
868 | { return const_iterator(this->_M_data()); } | |
869 | ||
870 | /** | |
871 | * Returns a read-only (constant) iterator that points one past the | |
872 | * last character in the %string. | |
873 | */ | |
874 | const_iterator | |
875 | cend() const noexcept | |
876 | { return const_iterator(this->_M_data() + this->size()); } | |
877 | ||
878 | /** | |
879 | * Returns a read-only (constant) reverse iterator that points | |
880 | * to the last character in the %string. Iteration is done in | |
881 | * reverse element order. | |
882 | */ | |
883 | const_reverse_iterator | |
884 | crbegin() const noexcept | |
885 | { return const_reverse_iterator(this->end()); } | |
886 | ||
887 | /** | |
888 | * Returns a read-only (constant) reverse iterator that points | |
889 | * to one before the first character in the %string. Iteration | |
890 | * is done in reverse element order. | |
891 | */ | |
892 | const_reverse_iterator | |
893 | crend() const noexcept | |
894 | { return const_reverse_iterator(this->begin()); } | |
895 | #endif | |
896 | ||
897 | public: | |
898 | // Capacity: | |
899 | /// Returns the number of characters in the string, not including any | |
900 | /// null-termination. | |
901 | size_type | |
902 | size() const _GLIBCXX_NOEXCEPT | |
903 | { return _M_string_length; } | |
904 | ||
905 | /// Returns the number of characters in the string, not including any | |
906 | /// null-termination. | |
907 | size_type | |
908 | length() const _GLIBCXX_NOEXCEPT | |
909 | { return _M_string_length; } | |
910 | ||
911 | /// Returns the size() of the largest possible %string. | |
912 | size_type | |
913 | max_size() const _GLIBCXX_NOEXCEPT | |
914 | { return (_Alloc_traits::max_size(_M_get_allocator()) - 1) / 2; } | |
915 | ||
916 | /** | |
917 | * @brief Resizes the %string to the specified number of characters. | |
918 | * @param __n Number of characters the %string should contain. | |
919 | * @param __c Character to fill any new elements. | |
920 | * | |
921 | * This function will %resize the %string to the specified | |
922 | * number of characters. If the number is smaller than the | |
923 | * %string's current size the %string is truncated, otherwise | |
924 | * the %string is extended and new elements are %set to @a __c. | |
925 | */ | |
926 | void | |
927 | resize(size_type __n, _CharT __c); | |
928 | ||
929 | /** | |
930 | * @brief Resizes the %string to the specified number of characters. | |
931 | * @param __n Number of characters the %string should contain. | |
932 | * | |
933 | * This function will resize the %string to the specified length. If | |
934 | * the new size is smaller than the %string's current size the %string | |
935 | * is truncated, otherwise the %string is extended and new characters | |
936 | * are default-constructed. For basic types such as char, this means | |
937 | * setting them to 0. | |
938 | */ | |
939 | void | |
940 | resize(size_type __n) | |
941 | { this->resize(__n, _CharT()); } | |
942 | ||
943 | #if __cplusplus >= 201103L | |
944 | /// A non-binding request to reduce capacity() to size(). | |
945 | void | |
946 | shrink_to_fit() noexcept | |
947 | { | |
99f04955 | 948 | #if __cpp_exceptions |
34a2b755 JW |
949 | if (capacity() > size()) |
950 | { | |
99f04955 | 951 | try |
34a2b755 | 952 | { reserve(0); } |
99f04955 | 953 | catch(...) |
34a2b755 JW |
954 | { } |
955 | } | |
99f04955 | 956 | #endif |
34a2b755 JW |
957 | } |
958 | #endif | |
959 | ||
960 | /** | |
961 | * Returns the total number of characters that the %string can hold | |
962 | * before needing to allocate more memory. | |
963 | */ | |
964 | size_type | |
965 | capacity() const _GLIBCXX_NOEXCEPT | |
966 | { | |
967 | return _M_is_local() ? size_type(_S_local_capacity) | |
968 | : _M_allocated_capacity; | |
969 | } | |
970 | ||
971 | /** | |
972 | * @brief Attempt to preallocate enough memory for specified number of | |
973 | * characters. | |
974 | * @param __res_arg Number of characters required. | |
975 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). | |
976 | * | |
977 | * This function attempts to reserve enough memory for the | |
978 | * %string to hold the specified number of characters. If the | |
979 | * number requested is more than max_size(), length_error is | |
980 | * thrown. | |
981 | * | |
982 | * The advantage of this function is that if optimal code is a | |
983 | * necessity and the user can determine the string length that will be | |
984 | * required, the user can reserve the memory in %advance, and thus | |
985 | * prevent a possible reallocation of memory and copying of %string | |
986 | * data. | |
987 | */ | |
988 | void | |
989 | reserve(size_type __res_arg = 0); | |
990 | ||
991 | /** | |
992 | * Erases the string, making it empty. | |
993 | */ | |
994 | void | |
995 | clear() _GLIBCXX_NOEXCEPT | |
996 | { _M_set_length(0); } | |
997 | ||
998 | /** | |
999 | * Returns true if the %string is empty. Equivalent to | |
1000 | * <code>*this == ""</code>. | |
1001 | */ | |
d715f554 | 1002 | _GLIBCXX_NODISCARD bool |
34a2b755 JW |
1003 | empty() const _GLIBCXX_NOEXCEPT |
1004 | { return this->size() == 0; } | |
1005 | ||
1006 | // Element access: | |
1007 | /** | |
1008 | * @brief Subscript access to the data contained in the %string. | |
1009 | * @param __pos The index of the character to access. | |
1010 | * @return Read-only (constant) reference to the character. | |
1011 | * | |
1012 | * This operator allows for easy, array-style, data access. | |
1013 | * Note that data access with this operator is unchecked and | |
1014 | * out_of_range lookups are not defined. (For checked lookups | |
1015 | * see at().) | |
1016 | */ | |
1017 | const_reference | |
1018 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT | |
1019 | { | |
2f1e8e7c | 1020 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1021 | return _M_data()[__pos]; |
1022 | } | |
1023 | ||
1024 | /** | |
1025 | * @brief Subscript access to the data contained in the %string. | |
1026 | * @param __pos The index of the character to access. | |
1027 | * @return Read/write reference to the character. | |
1028 | * | |
1029 | * This operator allows for easy, array-style, data access. | |
1030 | * Note that data access with this operator is unchecked and | |
1031 | * out_of_range lookups are not defined. (For checked lookups | |
1032 | * see at().) | |
1033 | */ | |
1034 | reference | |
1035 | operator[](size_type __pos) | |
1036 | { | |
1037 | // Allow pos == size() both in C++98 mode, as v3 extension, | |
1038 | // and in C++11 mode. | |
2f1e8e7c | 1039 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1040 | // In pedantic mode be strict in C++98 mode. |
1041 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); | |
1042 | return _M_data()[__pos]; | |
1043 | } | |
1044 | ||
1045 | /** | |
1046 | * @brief Provides access to the data contained in the %string. | |
1047 | * @param __n The index of the character to access. | |
1048 | * @return Read-only (const) reference to the character. | |
1049 | * @throw std::out_of_range If @a n is an invalid index. | |
1050 | * | |
1051 | * This function provides for safer data access. The parameter is | |
1052 | * first checked that it is in the range of the string. The function | |
1053 | * throws out_of_range if the check fails. | |
1054 | */ | |
1055 | const_reference | |
1056 | at(size_type __n) const | |
1057 | { | |
1058 | if (__n >= this->size()) | |
1059 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1060 | "(which is %zu) >= this->size() " | |
1061 | "(which is %zu)"), | |
1062 | __n, this->size()); | |
1063 | return _M_data()[__n]; | |
1064 | } | |
1065 | ||
1066 | /** | |
1067 | * @brief Provides access to the data contained in the %string. | |
1068 | * @param __n The index of the character to access. | |
1069 | * @return Read/write reference to the character. | |
1070 | * @throw std::out_of_range If @a n is an invalid index. | |
1071 | * | |
1072 | * This function provides for safer data access. The parameter is | |
1073 | * first checked that it is in the range of the string. The function | |
1074 | * throws out_of_range if the check fails. | |
1075 | */ | |
1076 | reference | |
1077 | at(size_type __n) | |
1078 | { | |
1079 | if (__n >= size()) | |
1080 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1081 | "(which is %zu) >= this->size() " | |
1082 | "(which is %zu)"), | |
1083 | __n, this->size()); | |
1084 | return _M_data()[__n]; | |
1085 | } | |
1086 | ||
1087 | #if __cplusplus >= 201103L | |
1088 | /** | |
1089 | * Returns a read/write reference to the data at the first | |
1090 | * element of the %string. | |
1091 | */ | |
1092 | reference | |
1093 | front() noexcept | |
e25d2617 | 1094 | { |
2f1e8e7c | 1095 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1096 | return operator[](0); |
1097 | } | |
34a2b755 JW |
1098 | |
1099 | /** | |
1100 | * Returns a read-only (constant) reference to the data at the first | |
1101 | * element of the %string. | |
1102 | */ | |
1103 | const_reference | |
1104 | front() const noexcept | |
e25d2617 | 1105 | { |
2f1e8e7c | 1106 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1107 | return operator[](0); |
1108 | } | |
34a2b755 JW |
1109 | |
1110 | /** | |
1111 | * Returns a read/write reference to the data at the last | |
1112 | * element of the %string. | |
1113 | */ | |
1114 | reference | |
1115 | back() noexcept | |
e25d2617 | 1116 | { |
2f1e8e7c | 1117 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1118 | return operator[](this->size() - 1); |
1119 | } | |
34a2b755 JW |
1120 | |
1121 | /** | |
1122 | * Returns a read-only (constant) reference to the data at the | |
1123 | * last element of the %string. | |
1124 | */ | |
1125 | const_reference | |
1126 | back() const noexcept | |
e25d2617 | 1127 | { |
2f1e8e7c | 1128 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1129 | return operator[](this->size() - 1); |
1130 | } | |
34a2b755 JW |
1131 | #endif |
1132 | ||
1133 | // Modifiers: | |
1134 | /** | |
1135 | * @brief Append a string to this string. | |
1136 | * @param __str The string to append. | |
1137 | * @return Reference to this string. | |
1138 | */ | |
1139 | basic_string& | |
1140 | operator+=(const basic_string& __str) | |
1141 | { return this->append(__str); } | |
1142 | ||
1143 | /** | |
1144 | * @brief Append a C string. | |
1145 | * @param __s The C string to append. | |
1146 | * @return Reference to this string. | |
1147 | */ | |
1148 | basic_string& | |
1149 | operator+=(const _CharT* __s) | |
1150 | { return this->append(__s); } | |
1151 | ||
1152 | /** | |
1153 | * @brief Append a character. | |
1154 | * @param __c The character to append. | |
1155 | * @return Reference to this string. | |
1156 | */ | |
1157 | basic_string& | |
1158 | operator+=(_CharT __c) | |
1159 | { | |
1160 | this->push_back(__c); | |
1161 | return *this; | |
1162 | } | |
1163 | ||
1164 | #if __cplusplus >= 201103L | |
1165 | /** | |
1166 | * @brief Append an initializer_list of characters. | |
1167 | * @param __l The initializer_list of characters to be appended. | |
1168 | * @return Reference to this string. | |
1169 | */ | |
1170 | basic_string& | |
1171 | operator+=(initializer_list<_CharT> __l) | |
1172 | { return this->append(__l.begin(), __l.size()); } | |
1173 | #endif // C++11 | |
1174 | ||
1a289fa3 | 1175 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1176 | /** |
1177 | * @brief Append a string_view. | |
df66af3b | 1178 | * @param __svt An object convertible to string_view to be appended. |
ca8f2cb1 VV |
1179 | * @return Reference to this string. |
1180 | */ | |
df66af3b DK |
1181 | template<typename _Tp> |
1182 | _If_sv<_Tp, basic_string&> | |
1183 | operator+=(const _Tp& __svt) | |
1184 | { return this->append(__svt); } | |
ca8f2cb1 VV |
1185 | #endif // C++17 |
1186 | ||
34a2b755 JW |
1187 | /** |
1188 | * @brief Append a string to this string. | |
1189 | * @param __str The string to append. | |
1190 | * @return Reference to this string. | |
1191 | */ | |
1192 | basic_string& | |
1193 | append(const basic_string& __str) | |
2d60da10 | 1194 | { return _M_append(__str._M_data(), __str.size()); } |
34a2b755 JW |
1195 | |
1196 | /** | |
1197 | * @brief Append a substring. | |
1198 | * @param __str The string to append. | |
1199 | * @param __pos Index of the first character of str to append. | |
1200 | * @param __n The number of characters to append. | |
1201 | * @return Reference to this string. | |
1202 | * @throw std::out_of_range if @a __pos is not a valid index. | |
1203 | * | |
1204 | * This function appends @a __n characters from @a __str | |
1205 | * starting at @a __pos to this string. If @a __n is is larger | |
1206 | * than the number of available characters in @a __str, the | |
1207 | * remainder of @a __str is appended. | |
1208 | */ | |
1209 | basic_string& | |
852ee53c | 1210 | append(const basic_string& __str, size_type __pos, size_type __n = npos) |
2d60da10 | 1211 | { return _M_append(__str._M_data() |
34a2b755 JW |
1212 | + __str._M_check(__pos, "basic_string::append"), |
1213 | __str._M_limit(__pos, __n)); } | |
1214 | ||
1215 | /** | |
1216 | * @brief Append a C substring. | |
1217 | * @param __s The C string to append. | |
1218 | * @param __n The number of characters to append. | |
1219 | * @return Reference to this string. | |
1220 | */ | |
1221 | basic_string& | |
1222 | append(const _CharT* __s, size_type __n) | |
1223 | { | |
1224 | __glibcxx_requires_string_len(__s, __n); | |
1225 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1226 | return _M_append(__s, __n); | |
1227 | } | |
1228 | ||
1229 | /** | |
1230 | * @brief Append a C string. | |
1231 | * @param __s The C string to append. | |
1232 | * @return Reference to this string. | |
1233 | */ | |
1234 | basic_string& | |
1235 | append(const _CharT* __s) | |
1236 | { | |
1237 | __glibcxx_requires_string(__s); | |
1238 | const size_type __n = traits_type::length(__s); | |
1239 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1240 | return _M_append(__s, __n); | |
1241 | } | |
1242 | ||
1243 | /** | |
1244 | * @brief Append multiple characters. | |
1245 | * @param __n The number of characters to append. | |
1246 | * @param __c The character to use. | |
1247 | * @return Reference to this string. | |
1248 | * | |
1249 | * Appends __n copies of __c to this string. | |
1250 | */ | |
1251 | basic_string& | |
1252 | append(size_type __n, _CharT __c) | |
1253 | { return _M_replace_aux(this->size(), size_type(0), __n, __c); } | |
1254 | ||
1255 | #if __cplusplus >= 201103L | |
1256 | /** | |
1257 | * @brief Append an initializer_list of characters. | |
1258 | * @param __l The initializer_list of characters to append. | |
1259 | * @return Reference to this string. | |
1260 | */ | |
1261 | basic_string& | |
1262 | append(initializer_list<_CharT> __l) | |
1263 | { return this->append(__l.begin(), __l.size()); } | |
1264 | #endif // C++11 | |
1265 | ||
1266 | /** | |
1267 | * @brief Append a range of characters. | |
1268 | * @param __first Iterator referencing the first character to append. | |
1269 | * @param __last Iterator marking the end of the range. | |
1270 | * @return Reference to this string. | |
1271 | * | |
1272 | * Appends characters in the range [__first,__last) to this string. | |
1273 | */ | |
1274 | #if __cplusplus >= 201103L | |
1275 | template<class _InputIterator, | |
1276 | typename = std::_RequireInputIter<_InputIterator>> | |
1277 | #else | |
1278 | template<class _InputIterator> | |
1279 | #endif | |
1280 | basic_string& | |
1281 | append(_InputIterator __first, _InputIterator __last) | |
1282 | { return this->replace(end(), end(), __first, __last); } | |
1283 | ||
1a289fa3 | 1284 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1285 | /** |
1286 | * @brief Append a string_view. | |
df66af3b | 1287 | * @param __svt An object convertible to string_view to be appended. |
ca8f2cb1 VV |
1288 | * @return Reference to this string. |
1289 | */ | |
df66af3b DK |
1290 | template<typename _Tp> |
1291 | _If_sv<_Tp, basic_string&> | |
1292 | append(const _Tp& __svt) | |
1293 | { | |
1294 | __sv_type __sv = __svt; | |
1295 | return this->append(__sv.data(), __sv.size()); | |
1296 | } | |
ca8f2cb1 VV |
1297 | |
1298 | /** | |
1299 | * @brief Append a range of characters from a string_view. | |
df66af3b | 1300 | * @param __svt An object convertible to string_view to be appended from. |
ca8f2cb1 VV |
1301 | * @param __pos The position in the string_view to append from. |
1302 | * @param __n The number of characters to append from the string_view. | |
1303 | * @return Reference to this string. | |
1304 | */ | |
df66af3b DK |
1305 | template<typename _Tp> |
1306 | _If_sv<_Tp, basic_string&> | |
657213f7 JW |
1307 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) |
1308 | { | |
1309 | __sv_type __sv = __svt; | |
1310 | return _M_append(__sv.data() | |
fb8b3e29 JW |
1311 | + std::__sv_check(__sv.size(), __pos, "basic_string::append"), |
1312 | std::__sv_limit(__sv.size(), __pos, __n)); | |
657213f7 | 1313 | } |
ca8f2cb1 VV |
1314 | #endif // C++17 |
1315 | ||
34a2b755 JW |
1316 | /** |
1317 | * @brief Append a single character. | |
1318 | * @param __c Character to append. | |
1319 | */ | |
1320 | void | |
1321 | push_back(_CharT __c) | |
1322 | { | |
1323 | const size_type __size = this->size(); | |
1324 | if (__size + 1 > this->capacity()) | |
1325 | this->_M_mutate(__size, size_type(0), 0, size_type(1)); | |
1326 | traits_type::assign(this->_M_data()[__size], __c); | |
1327 | this->_M_set_length(__size + 1); | |
1328 | } | |
1329 | ||
1330 | /** | |
1331 | * @brief Set value to contents of another string. | |
1332 | * @param __str Source string to use. | |
1333 | * @return Reference to this string. | |
1334 | */ | |
1335 | basic_string& | |
1336 | assign(const basic_string& __str) | |
1337 | { | |
db33efde NDR |
1338 | #if __cplusplus >= 201103L |
1339 | if (_Alloc_traits::_S_propagate_on_copy_assign()) | |
1340 | { | |
1341 | if (!_Alloc_traits::_S_always_equal() && !_M_is_local() | |
1342 | && _M_get_allocator() != __str._M_get_allocator()) | |
1343 | { | |
1344 | // Propagating allocator cannot free existing storage so must | |
1345 | // deallocate it before replacing current allocator. | |
1346 | if (__str.size() <= _S_local_capacity) | |
1347 | { | |
1348 | _M_destroy(_M_allocated_capacity); | |
1349 | _M_data(_M_local_data()); | |
1350 | _M_set_length(0); | |
1351 | } | |
1352 | else | |
1353 | { | |
1354 | const auto __len = __str.size(); | |
1355 | auto __alloc = __str._M_get_allocator(); | |
1356 | // If this allocation throws there are no effects: | |
1357 | auto __ptr = _Alloc_traits::allocate(__alloc, __len + 1); | |
1358 | _M_destroy(_M_allocated_capacity); | |
1359 | _M_data(__ptr); | |
1360 | _M_capacity(__len); | |
1361 | _M_set_length(__len); | |
1362 | } | |
1363 | } | |
1364 | std::__alloc_on_copy(_M_get_allocator(), __str._M_get_allocator()); | |
1365 | } | |
1366 | #endif | |
34a2b755 JW |
1367 | this->_M_assign(__str); |
1368 | return *this; | |
1369 | } | |
1370 | ||
1371 | #if __cplusplus >= 201103L | |
1372 | /** | |
1373 | * @brief Set value to contents of another string. | |
1374 | * @param __str Source string to use. | |
1375 | * @return Reference to this string. | |
1376 | * | |
1377 | * This function sets this string to the exact contents of @a __str. | |
1378 | * @a __str is a valid, but unspecified string. | |
1379 | */ | |
1380 | basic_string& | |
1381 | assign(basic_string&& __str) | |
5caff414 | 1382 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 JW |
1383 | { |
1384 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
1385 | // 2063. Contradictory requirements for string move assignment | |
1386 | return *this = std::move(__str); | |
1387 | } | |
1388 | #endif // C++11 | |
1389 | ||
1390 | /** | |
1391 | * @brief Set value to a substring of a string. | |
1392 | * @param __str The string to use. | |
1393 | * @param __pos Index of the first character of str. | |
1394 | * @param __n Number of characters to use. | |
1395 | * @return Reference to this string. | |
1396 | * @throw std::out_of_range if @a pos is not a valid index. | |
1397 | * | |
1398 | * This function sets this string to the substring of @a __str | |
1399 | * consisting of @a __n characters at @a __pos. If @a __n is | |
1400 | * is larger than the number of available characters in @a | |
1401 | * __str, the remainder of @a __str is used. | |
1402 | */ | |
1403 | basic_string& | |
852ee53c | 1404 | assign(const basic_string& __str, size_type __pos, size_type __n = npos) |
2d60da10 | 1405 | { return _M_replace(size_type(0), this->size(), __str._M_data() |
34a2b755 JW |
1406 | + __str._M_check(__pos, "basic_string::assign"), |
1407 | __str._M_limit(__pos, __n)); } | |
1408 | ||
1409 | /** | |
1410 | * @brief Set value to a C substring. | |
1411 | * @param __s The C string to use. | |
1412 | * @param __n Number of characters to use. | |
1413 | * @return Reference to this string. | |
1414 | * | |
1415 | * This function sets the value of this string to the first @a __n | |
1416 | * characters of @a __s. If @a __n is is larger than the number of | |
1417 | * available characters in @a __s, the remainder of @a __s is used. | |
1418 | */ | |
1419 | basic_string& | |
1420 | assign(const _CharT* __s, size_type __n) | |
1421 | { | |
1422 | __glibcxx_requires_string_len(__s, __n); | |
1423 | return _M_replace(size_type(0), this->size(), __s, __n); | |
1424 | } | |
1425 | ||
1426 | /** | |
1427 | * @brief Set value to contents of a C string. | |
1428 | * @param __s The C string to use. | |
1429 | * @return Reference to this string. | |
1430 | * | |
1431 | * This function sets the value of this string to the value of @a __s. | |
1432 | * The data is copied, so there is no dependence on @a __s once the | |
1433 | * function returns. | |
1434 | */ | |
1435 | basic_string& | |
1436 | assign(const _CharT* __s) | |
1437 | { | |
1438 | __glibcxx_requires_string(__s); | |
1439 | return _M_replace(size_type(0), this->size(), __s, | |
1440 | traits_type::length(__s)); | |
1441 | } | |
1442 | ||
1443 | /** | |
1444 | * @brief Set value to multiple characters. | |
1445 | * @param __n Length of the resulting string. | |
1446 | * @param __c The character to use. | |
1447 | * @return Reference to this string. | |
1448 | * | |
1449 | * This function sets the value of this string to @a __n copies of | |
1450 | * character @a __c. | |
1451 | */ | |
1452 | basic_string& | |
1453 | assign(size_type __n, _CharT __c) | |
1454 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } | |
1455 | ||
1456 | /** | |
1457 | * @brief Set value to a range of characters. | |
1458 | * @param __first Iterator referencing the first character to append. | |
1459 | * @param __last Iterator marking the end of the range. | |
1460 | * @return Reference to this string. | |
1461 | * | |
1462 | * Sets value of string to characters in the range [__first,__last). | |
1463 | */ | |
1464 | #if __cplusplus >= 201103L | |
1465 | template<class _InputIterator, | |
1466 | typename = std::_RequireInputIter<_InputIterator>> | |
1467 | #else | |
1468 | template<class _InputIterator> | |
1469 | #endif | |
1470 | basic_string& | |
1471 | assign(_InputIterator __first, _InputIterator __last) | |
1472 | { return this->replace(begin(), end(), __first, __last); } | |
1473 | ||
1474 | #if __cplusplus >= 201103L | |
1475 | /** | |
1476 | * @brief Set value to an initializer_list of characters. | |
1477 | * @param __l The initializer_list of characters to assign. | |
1478 | * @return Reference to this string. | |
1479 | */ | |
1480 | basic_string& | |
1481 | assign(initializer_list<_CharT> __l) | |
1482 | { return this->assign(__l.begin(), __l.size()); } | |
1483 | #endif // C++11 | |
1484 | ||
1a289fa3 | 1485 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1486 | /** |
1487 | * @brief Set value from a string_view. | |
df66af3b | 1488 | * @param __svt The source object convertible to string_view. |
ca8f2cb1 VV |
1489 | * @return Reference to this string. |
1490 | */ | |
df66af3b DK |
1491 | template<typename _Tp> |
1492 | _If_sv<_Tp, basic_string&> | |
1493 | assign(const _Tp& __svt) | |
1494 | { | |
1495 | __sv_type __sv = __svt; | |
1496 | return this->assign(__sv.data(), __sv.size()); | |
1497 | } | |
ca8f2cb1 VV |
1498 | |
1499 | /** | |
1500 | * @brief Set value from a range of characters in a string_view. | |
df66af3b | 1501 | * @param __svt The source object convertible to string_view. |
ca8f2cb1 VV |
1502 | * @param __pos The position in the string_view to assign from. |
1503 | * @param __n The number of characters to assign. | |
1504 | * @return Reference to this string. | |
1505 | */ | |
df66af3b | 1506 | template<typename _Tp> |
657213f7 JW |
1507 | _If_sv<_Tp, basic_string&> |
1508 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
1509 | { | |
1510 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
1511 | return _M_replace(size_type(0), this->size(), |
1512 | __sv.data() | |
1513 | + std::__sv_check(__sv.size(), __pos, "basic_string::assign"), | |
1514 | std::__sv_limit(__sv.size(), __pos, __n)); | |
657213f7 | 1515 | } |
ca8f2cb1 VV |
1516 | #endif // C++17 |
1517 | ||
34a2b755 JW |
1518 | #if __cplusplus >= 201103L |
1519 | /** | |
1520 | * @brief Insert multiple characters. | |
1521 | * @param __p Const_iterator referencing location in string to | |
1522 | * insert at. | |
1523 | * @param __n Number of characters to insert | |
1524 | * @param __c The character to insert. | |
1525 | * @return Iterator referencing the first inserted char. | |
1526 | * @throw std::length_error If new length exceeds @c max_size(). | |
1527 | * | |
1528 | * Inserts @a __n copies of character @a __c starting at the | |
1529 | * position referenced by iterator @a __p. If adding | |
1530 | * characters causes the length to exceed max_size(), | |
1531 | * length_error is thrown. The value of the string doesn't | |
1532 | * change if an error is thrown. | |
1533 | */ | |
1534 | iterator | |
1535 | insert(const_iterator __p, size_type __n, _CharT __c) | |
1536 | { | |
1537 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1538 | const size_type __pos = __p - begin(); | |
1539 | this->replace(__p, __p, __n, __c); | |
1540 | return iterator(this->_M_data() + __pos); | |
1541 | } | |
1542 | #else | |
1543 | /** | |
1544 | * @brief Insert multiple characters. | |
1545 | * @param __p Iterator referencing location in string to insert at. | |
1546 | * @param __n Number of characters to insert | |
1547 | * @param __c The character to insert. | |
1548 | * @throw std::length_error If new length exceeds @c max_size(). | |
1549 | * | |
1550 | * Inserts @a __n copies of character @a __c starting at the | |
1551 | * position referenced by iterator @a __p. If adding | |
1552 | * characters causes the length to exceed max_size(), | |
1553 | * length_error is thrown. The value of the string doesn't | |
1554 | * change if an error is thrown. | |
1555 | */ | |
1556 | void | |
1557 | insert(iterator __p, size_type __n, _CharT __c) | |
1558 | { this->replace(__p, __p, __n, __c); } | |
1559 | #endif | |
1560 | ||
1561 | #if __cplusplus >= 201103L | |
1562 | /** | |
1563 | * @brief Insert a range of characters. | |
1564 | * @param __p Const_iterator referencing location in string to | |
1565 | * insert at. | |
1566 | * @param __beg Start of range. | |
1567 | * @param __end End of range. | |
1568 | * @return Iterator referencing the first inserted char. | |
1569 | * @throw std::length_error If new length exceeds @c max_size(). | |
1570 | * | |
1571 | * Inserts characters in range [beg,end). If adding characters | |
1572 | * causes the length to exceed max_size(), length_error is | |
1573 | * thrown. The value of the string doesn't change if an error | |
1574 | * is thrown. | |
1575 | */ | |
1576 | template<class _InputIterator, | |
1577 | typename = std::_RequireInputIter<_InputIterator>> | |
1578 | iterator | |
1579 | insert(const_iterator __p, _InputIterator __beg, _InputIterator __end) | |
1580 | { | |
1581 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1582 | const size_type __pos = __p - begin(); | |
1583 | this->replace(__p, __p, __beg, __end); | |
1584 | return iterator(this->_M_data() + __pos); | |
1585 | } | |
1586 | #else | |
1587 | /** | |
1588 | * @brief Insert a range of characters. | |
1589 | * @param __p Iterator referencing location in string to insert at. | |
1590 | * @param __beg Start of range. | |
1591 | * @param __end End of range. | |
1592 | * @throw std::length_error If new length exceeds @c max_size(). | |
1593 | * | |
1594 | * Inserts characters in range [__beg,__end). If adding | |
1595 | * characters causes the length to exceed max_size(), | |
1596 | * length_error is thrown. The value of the string doesn't | |
1597 | * change if an error is thrown. | |
1598 | */ | |
1599 | template<class _InputIterator> | |
1600 | void | |
1601 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) | |
1602 | { this->replace(__p, __p, __beg, __end); } | |
1603 | #endif | |
1604 | ||
1605 | #if __cplusplus >= 201103L | |
1606 | /** | |
1607 | * @brief Insert an initializer_list of characters. | |
1608 | * @param __p Iterator referencing location in string to insert at. | |
1609 | * @param __l The initializer_list of characters to insert. | |
1610 | * @throw std::length_error If new length exceeds @c max_size(). | |
1611 | */ | |
cda121ac JW |
1612 | iterator |
1613 | insert(const_iterator __p, initializer_list<_CharT> __l) | |
1614 | { return this->insert(__p, __l.begin(), __l.end()); } | |
1615 | ||
1616 | #ifdef _GLIBCXX_DEFINING_STRING_INSTANTIATIONS | |
1617 | // See PR libstdc++/83328 | |
34a2b755 JW |
1618 | void |
1619 | insert(iterator __p, initializer_list<_CharT> __l) | |
1620 | { | |
1621 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1622 | this->insert(__p - begin(), __l.begin(), __l.size()); | |
1623 | } | |
cda121ac | 1624 | #endif |
34a2b755 JW |
1625 | #endif // C++11 |
1626 | ||
1627 | /** | |
1628 | * @brief Insert value of a string. | |
8c6a71e4 | 1629 | * @param __pos1 Position in string to insert at. |
34a2b755 JW |
1630 | * @param __str The string to insert. |
1631 | * @return Reference to this string. | |
1632 | * @throw std::length_error If new length exceeds @c max_size(). | |
1633 | * | |
1634 | * Inserts value of @a __str starting at @a __pos1. If adding | |
1635 | * characters causes the length to exceed max_size(), | |
1636 | * length_error is thrown. The value of the string doesn't | |
1637 | * change if an error is thrown. | |
1638 | */ | |
1639 | basic_string& | |
1640 | insert(size_type __pos1, const basic_string& __str) | |
1641 | { return this->replace(__pos1, size_type(0), | |
2d60da10 | 1642 | __str._M_data(), __str.size()); } |
34a2b755 JW |
1643 | |
1644 | /** | |
1645 | * @brief Insert a substring. | |
8c6a71e4 JW |
1646 | * @param __pos1 Position in string to insert at. |
1647 | * @param __str The string to insert. | |
34a2b755 JW |
1648 | * @param __pos2 Start of characters in str to insert. |
1649 | * @param __n Number of characters to insert. | |
1650 | * @return Reference to this string. | |
1651 | * @throw std::length_error If new length exceeds @c max_size(). | |
1652 | * @throw std::out_of_range If @a pos1 > size() or | |
1653 | * @a __pos2 > @a str.size(). | |
1654 | * | |
1655 | * Starting at @a pos1, insert @a __n character of @a __str | |
1656 | * beginning with @a __pos2. If adding characters causes the | |
1657 | * length to exceed max_size(), length_error is thrown. If @a | |
1658 | * __pos1 is beyond the end of this string or @a __pos2 is | |
1659 | * beyond the end of @a __str, out_of_range is thrown. The | |
1660 | * value of the string doesn't change if an error is thrown. | |
1661 | */ | |
1662 | basic_string& | |
1663 | insert(size_type __pos1, const basic_string& __str, | |
852ee53c | 1664 | size_type __pos2, size_type __n = npos) |
2d60da10 | 1665 | { return this->replace(__pos1, size_type(0), __str._M_data() |
34a2b755 JW |
1666 | + __str._M_check(__pos2, "basic_string::insert"), |
1667 | __str._M_limit(__pos2, __n)); } | |
1668 | ||
1669 | /** | |
1670 | * @brief Insert a C substring. | |
8c6a71e4 | 1671 | * @param __pos Position in string to insert at. |
34a2b755 JW |
1672 | * @param __s The C string to insert. |
1673 | * @param __n The number of characters to insert. | |
1674 | * @return Reference to this string. | |
1675 | * @throw std::length_error If new length exceeds @c max_size(). | |
1676 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1677 | * string. | |
1678 | * | |
1679 | * Inserts the first @a __n characters of @a __s starting at @a | |
1680 | * __pos. If adding characters causes the length to exceed | |
1681 | * max_size(), length_error is thrown. If @a __pos is beyond | |
1682 | * end(), out_of_range is thrown. The value of the string | |
1683 | * doesn't change if an error is thrown. | |
1684 | */ | |
1685 | basic_string& | |
1686 | insert(size_type __pos, const _CharT* __s, size_type __n) | |
1687 | { return this->replace(__pos, size_type(0), __s, __n); } | |
1688 | ||
1689 | /** | |
1690 | * @brief Insert a C string. | |
8c6a71e4 | 1691 | * @param __pos Position in string to insert at. |
34a2b755 JW |
1692 | * @param __s The C string to insert. |
1693 | * @return Reference to this string. | |
1694 | * @throw std::length_error If new length exceeds @c max_size(). | |
1695 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1696 | * string. | |
1697 | * | |
1698 | * Inserts the first @a n characters of @a __s starting at @a __pos. If | |
1699 | * adding characters causes the length to exceed max_size(), | |
1700 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is | |
1701 | * thrown. The value of the string doesn't change if an error is | |
1702 | * thrown. | |
1703 | */ | |
1704 | basic_string& | |
1705 | insert(size_type __pos, const _CharT* __s) | |
1706 | { | |
1707 | __glibcxx_requires_string(__s); | |
1708 | return this->replace(__pos, size_type(0), __s, | |
1709 | traits_type::length(__s)); | |
1710 | } | |
1711 | ||
1712 | /** | |
1713 | * @brief Insert multiple characters. | |
1714 | * @param __pos Index in string to insert at. | |
1715 | * @param __n Number of characters to insert | |
1716 | * @param __c The character to insert. | |
1717 | * @return Reference to this string. | |
1718 | * @throw std::length_error If new length exceeds @c max_size(). | |
1719 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1720 | * string. | |
1721 | * | |
1722 | * Inserts @a __n copies of character @a __c starting at index | |
1723 | * @a __pos. If adding characters causes the length to exceed | |
1724 | * max_size(), length_error is thrown. If @a __pos > length(), | |
1725 | * out_of_range is thrown. The value of the string doesn't | |
1726 | * change if an error is thrown. | |
1727 | */ | |
1728 | basic_string& | |
1729 | insert(size_type __pos, size_type __n, _CharT __c) | |
1730 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), | |
1731 | size_type(0), __n, __c); } | |
1732 | ||
1733 | /** | |
1734 | * @brief Insert one character. | |
1735 | * @param __p Iterator referencing position in string to insert at. | |
1736 | * @param __c The character to insert. | |
1737 | * @return Iterator referencing newly inserted char. | |
1738 | * @throw std::length_error If new length exceeds @c max_size(). | |
1739 | * | |
1740 | * Inserts character @a __c at position referenced by @a __p. | |
1741 | * If adding character causes the length to exceed max_size(), | |
1742 | * length_error is thrown. If @a __p is beyond end of string, | |
1743 | * out_of_range is thrown. The value of the string doesn't | |
1744 | * change if an error is thrown. | |
1745 | */ | |
1746 | iterator | |
1747 | insert(__const_iterator __p, _CharT __c) | |
1748 | { | |
1749 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1750 | const size_type __pos = __p - begin(); | |
1751 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); | |
1752 | return iterator(_M_data() + __pos); | |
1753 | } | |
1754 | ||
1a289fa3 | 1755 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1756 | /** |
1757 | * @brief Insert a string_view. | |
8c6a71e4 | 1758 | * @param __pos Position in string to insert at. |
df66af3b | 1759 | * @param __svt The object convertible to string_view to insert. |
ca8f2cb1 VV |
1760 | * @return Reference to this string. |
1761 | */ | |
df66af3b DK |
1762 | template<typename _Tp> |
1763 | _If_sv<_Tp, basic_string&> | |
1764 | insert(size_type __pos, const _Tp& __svt) | |
1765 | { | |
1766 | __sv_type __sv = __svt; | |
1767 | return this->insert(__pos, __sv.data(), __sv.size()); | |
1768 | } | |
ca8f2cb1 VV |
1769 | |
1770 | /** | |
1771 | * @brief Insert a string_view. | |
8c6a71e4 JW |
1772 | * @param __pos1 Position in string to insert at. |
1773 | * @param __svt The object convertible to string_view to insert from. | |
1774 | * @param __pos2 Start of characters in str to insert. | |
ca8f2cb1 VV |
1775 | * @param __n The number of characters to insert. |
1776 | * @return Reference to this string. | |
1777 | */ | |
df66af3b | 1778 | template<typename _Tp> |
657213f7 JW |
1779 | _If_sv<_Tp, basic_string&> |
1780 | insert(size_type __pos1, const _Tp& __svt, | |
1781 | size_type __pos2, size_type __n = npos) | |
1782 | { | |
1783 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
1784 | return this->replace(__pos1, size_type(0), |
1785 | __sv.data() | |
1786 | + std::__sv_check(__sv.size(), __pos2, "basic_string::insert"), | |
1787 | std::__sv_limit(__sv.size(), __pos2, __n)); | |
657213f7 | 1788 | } |
ca8f2cb1 VV |
1789 | #endif // C++17 |
1790 | ||
34a2b755 JW |
1791 | /** |
1792 | * @brief Remove characters. | |
1793 | * @param __pos Index of first character to remove (default 0). | |
1794 | * @param __n Number of characters to remove (default remainder). | |
1795 | * @return Reference to this string. | |
1796 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1797 | * string. | |
1798 | * | |
1799 | * Removes @a __n characters from this string starting at @a | |
1800 | * __pos. The length of the string is reduced by @a __n. If | |
1801 | * there are < @a __n characters to remove, the remainder of | |
1802 | * the string is truncated. If @a __p is beyond end of string, | |
1803 | * out_of_range is thrown. The value of the string doesn't | |
1804 | * change if an error is thrown. | |
1805 | */ | |
1806 | basic_string& | |
1807 | erase(size_type __pos = 0, size_type __n = npos) | |
1808 | { | |
a922c5ff JW |
1809 | _M_check(__pos, "basic_string::erase"); |
1810 | if (__n == npos) | |
1811 | this->_M_set_length(__pos); | |
1812 | else if (__n != 0) | |
1813 | this->_M_erase(__pos, _M_limit(__pos, __n)); | |
34a2b755 JW |
1814 | return *this; |
1815 | } | |
1816 | ||
1817 | /** | |
1818 | * @brief Remove one character. | |
1819 | * @param __position Iterator referencing the character to remove. | |
1820 | * @return iterator referencing same location after removal. | |
1821 | * | |
1822 | * Removes the character at @a __position from this string. The value | |
1823 | * of the string doesn't change if an error is thrown. | |
1824 | */ | |
1825 | iterator | |
1826 | erase(__const_iterator __position) | |
1827 | { | |
1828 | _GLIBCXX_DEBUG_PEDASSERT(__position >= begin() | |
1829 | && __position < end()); | |
1830 | const size_type __pos = __position - begin(); | |
1831 | this->_M_erase(__pos, size_type(1)); | |
1832 | return iterator(_M_data() + __pos); | |
1833 | } | |
1834 | ||
1835 | /** | |
1836 | * @brief Remove a range of characters. | |
1837 | * @param __first Iterator referencing the first character to remove. | |
1838 | * @param __last Iterator referencing the end of the range. | |
1839 | * @return Iterator referencing location of first after removal. | |
1840 | * | |
1841 | * Removes the characters in the range [first,last) from this string. | |
1842 | * The value of the string doesn't change if an error is thrown. | |
1843 | */ | |
1844 | iterator | |
1845 | erase(__const_iterator __first, __const_iterator __last) | |
1846 | { | |
1847 | _GLIBCXX_DEBUG_PEDASSERT(__first >= begin() && __first <= __last | |
1848 | && __last <= end()); | |
1849 | const size_type __pos = __first - begin(); | |
a922c5ff JW |
1850 | if (__last == end()) |
1851 | this->_M_set_length(__pos); | |
1852 | else | |
1853 | this->_M_erase(__pos, __last - __first); | |
34a2b755 JW |
1854 | return iterator(this->_M_data() + __pos); |
1855 | } | |
1856 | ||
1857 | #if __cplusplus >= 201103L | |
1858 | /** | |
1859 | * @brief Remove the last character. | |
1860 | * | |
1861 | * The string must be non-empty. | |
1862 | */ | |
1863 | void | |
1864 | pop_back() noexcept | |
e25d2617 | 1865 | { |
2f1e8e7c | 1866 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1867 | _M_erase(size() - 1, 1); |
1868 | } | |
34a2b755 JW |
1869 | #endif // C++11 |
1870 | ||
1871 | /** | |
1872 | * @brief Replace characters with value from another string. | |
1873 | * @param __pos Index of first character to replace. | |
1874 | * @param __n Number of characters to be replaced. | |
1875 | * @param __str String to insert. | |
1876 | * @return Reference to this string. | |
1877 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1878 | * string. | |
1879 | * @throw std::length_error If new length exceeds @c max_size(). | |
1880 | * | |
1881 | * Removes the characters in the range [__pos,__pos+__n) from | |
1882 | * this string. In place, the value of @a __str is inserted. | |
1883 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
1884 | * If the length of the result exceeds max_size(), length_error | |
1885 | * is thrown. The value of the string doesn't change if an | |
1886 | * error is thrown. | |
1887 | */ | |
1888 | basic_string& | |
1889 | replace(size_type __pos, size_type __n, const basic_string& __str) | |
2d60da10 | 1890 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
34a2b755 JW |
1891 | |
1892 | /** | |
1893 | * @brief Replace characters with value from another string. | |
1894 | * @param __pos1 Index of first character to replace. | |
1895 | * @param __n1 Number of characters to be replaced. | |
1896 | * @param __str String to insert. | |
1897 | * @param __pos2 Index of first character of str to use. | |
1898 | * @param __n2 Number of characters from str to use. | |
1899 | * @return Reference to this string. | |
1900 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > | |
1901 | * __str.size(). | |
1902 | * @throw std::length_error If new length exceeds @c max_size(). | |
1903 | * | |
1904 | * Removes the characters in the range [__pos1,__pos1 + n) from this | |
1905 | * string. In place, the value of @a __str is inserted. If @a __pos is | |
1906 | * beyond end of string, out_of_range is thrown. If the length of the | |
1907 | * result exceeds max_size(), length_error is thrown. The value of the | |
1908 | * string doesn't change if an error is thrown. | |
1909 | */ | |
1910 | basic_string& | |
1911 | replace(size_type __pos1, size_type __n1, const basic_string& __str, | |
852ee53c | 1912 | size_type __pos2, size_type __n2 = npos) |
2d60da10 | 1913 | { return this->replace(__pos1, __n1, __str._M_data() |
34a2b755 JW |
1914 | + __str._M_check(__pos2, "basic_string::replace"), |
1915 | __str._M_limit(__pos2, __n2)); } | |
1916 | ||
1917 | /** | |
1918 | * @brief Replace characters with value of a C substring. | |
1919 | * @param __pos Index of first character to replace. | |
1920 | * @param __n1 Number of characters to be replaced. | |
1921 | * @param __s C string to insert. | |
1922 | * @param __n2 Number of characters from @a s to use. | |
1923 | * @return Reference to this string. | |
1924 | * @throw std::out_of_range If @a pos1 > size(). | |
1925 | * @throw std::length_error If new length exceeds @c max_size(). | |
1926 | * | |
1927 | * Removes the characters in the range [__pos,__pos + __n1) | |
1928 | * from this string. In place, the first @a __n2 characters of | |
1929 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If | |
1930 | * @a __pos is beyond end of string, out_of_range is thrown. If | |
1931 | * the length of result exceeds max_size(), length_error is | |
1932 | * thrown. The value of the string doesn't change if an error | |
1933 | * is thrown. | |
1934 | */ | |
1935 | basic_string& | |
1936 | replace(size_type __pos, size_type __n1, const _CharT* __s, | |
1937 | size_type __n2) | |
1938 | { | |
1939 | __glibcxx_requires_string_len(__s, __n2); | |
1940 | return _M_replace(_M_check(__pos, "basic_string::replace"), | |
1941 | _M_limit(__pos, __n1), __s, __n2); | |
1942 | } | |
1943 | ||
1944 | /** | |
1945 | * @brief Replace characters with value of a C string. | |
1946 | * @param __pos Index of first character to replace. | |
1947 | * @param __n1 Number of characters to be replaced. | |
1948 | * @param __s C string to insert. | |
1949 | * @return Reference to this string. | |
1950 | * @throw std::out_of_range If @a pos > size(). | |
1951 | * @throw std::length_error If new length exceeds @c max_size(). | |
1952 | * | |
1953 | * Removes the characters in the range [__pos,__pos + __n1) | |
1954 | * from this string. In place, the characters of @a __s are | |
1955 | * inserted. If @a __pos is beyond end of string, out_of_range | |
1956 | * is thrown. If the length of result exceeds max_size(), | |
1957 | * length_error is thrown. The value of the string doesn't | |
1958 | * change if an error is thrown. | |
1959 | */ | |
1960 | basic_string& | |
1961 | replace(size_type __pos, size_type __n1, const _CharT* __s) | |
1962 | { | |
1963 | __glibcxx_requires_string(__s); | |
1964 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); | |
1965 | } | |
1966 | ||
1967 | /** | |
1968 | * @brief Replace characters with multiple characters. | |
1969 | * @param __pos Index of first character to replace. | |
1970 | * @param __n1 Number of characters to be replaced. | |
1971 | * @param __n2 Number of characters to insert. | |
1972 | * @param __c Character to insert. | |
1973 | * @return Reference to this string. | |
1974 | * @throw std::out_of_range If @a __pos > size(). | |
1975 | * @throw std::length_error If new length exceeds @c max_size(). | |
1976 | * | |
1977 | * Removes the characters in the range [pos,pos + n1) from this | |
1978 | * string. In place, @a __n2 copies of @a __c are inserted. | |
1979 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
1980 | * If the length of result exceeds max_size(), length_error is | |
1981 | * thrown. The value of the string doesn't change if an error | |
1982 | * is thrown. | |
1983 | */ | |
1984 | basic_string& | |
1985 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) | |
1986 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), | |
1987 | _M_limit(__pos, __n1), __n2, __c); } | |
1988 | ||
1989 | /** | |
1990 | * @brief Replace range of characters with string. | |
1991 | * @param __i1 Iterator referencing start of range to replace. | |
1992 | * @param __i2 Iterator referencing end of range to replace. | |
1993 | * @param __str String value to insert. | |
1994 | * @return Reference to this string. | |
1995 | * @throw std::length_error If new length exceeds @c max_size(). | |
1996 | * | |
1997 | * Removes the characters in the range [__i1,__i2). In place, | |
1998 | * the value of @a __str is inserted. If the length of result | |
1999 | * exceeds max_size(), length_error is thrown. The value of | |
2000 | * the string doesn't change if an error is thrown. | |
2001 | */ | |
2002 | basic_string& | |
2003 | replace(__const_iterator __i1, __const_iterator __i2, | |
2004 | const basic_string& __str) | |
2d60da10 | 2005 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
34a2b755 JW |
2006 | |
2007 | /** | |
2008 | * @brief Replace range of characters with C substring. | |
2009 | * @param __i1 Iterator referencing start of range to replace. | |
2010 | * @param __i2 Iterator referencing end of range to replace. | |
2011 | * @param __s C string value to insert. | |
2012 | * @param __n Number of characters from s to insert. | |
2013 | * @return Reference to this string. | |
2014 | * @throw std::length_error If new length exceeds @c max_size(). | |
2015 | * | |
2016 | * Removes the characters in the range [__i1,__i2). In place, | |
2017 | * the first @a __n characters of @a __s are inserted. If the | |
2018 | * length of result exceeds max_size(), length_error is thrown. | |
2019 | * The value of the string doesn't change if an error is | |
2020 | * thrown. | |
2021 | */ | |
2022 | basic_string& | |
2023 | replace(__const_iterator __i1, __const_iterator __i2, | |
2024 | const _CharT* __s, size_type __n) | |
2025 | { | |
2026 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2027 | && __i2 <= end()); | |
2028 | return this->replace(__i1 - begin(), __i2 - __i1, __s, __n); | |
2029 | } | |
2030 | ||
2031 | /** | |
2032 | * @brief Replace range of characters with C string. | |
2033 | * @param __i1 Iterator referencing start of range to replace. | |
2034 | * @param __i2 Iterator referencing end of range to replace. | |
2035 | * @param __s C string value to insert. | |
2036 | * @return Reference to this string. | |
2037 | * @throw std::length_error If new length exceeds @c max_size(). | |
2038 | * | |
2039 | * Removes the characters in the range [__i1,__i2). In place, | |
2040 | * the characters of @a __s are inserted. If the length of | |
2041 | * result exceeds max_size(), length_error is thrown. The | |
2042 | * value of the string doesn't change if an error is thrown. | |
2043 | */ | |
2044 | basic_string& | |
2045 | replace(__const_iterator __i1, __const_iterator __i2, const _CharT* __s) | |
2046 | { | |
2047 | __glibcxx_requires_string(__s); | |
2048 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); | |
2049 | } | |
2050 | ||
2051 | /** | |
2052 | * @brief Replace range of characters with multiple characters | |
2053 | * @param __i1 Iterator referencing start of range to replace. | |
2054 | * @param __i2 Iterator referencing end of range to replace. | |
2055 | * @param __n Number of characters to insert. | |
2056 | * @param __c Character to insert. | |
2057 | * @return Reference to this string. | |
2058 | * @throw std::length_error If new length exceeds @c max_size(). | |
2059 | * | |
2060 | * Removes the characters in the range [__i1,__i2). In place, | |
2061 | * @a __n copies of @a __c are inserted. If the length of | |
2062 | * result exceeds max_size(), length_error is thrown. The | |
2063 | * value of the string doesn't change if an error is thrown. | |
2064 | */ | |
2065 | basic_string& | |
2066 | replace(__const_iterator __i1, __const_iterator __i2, size_type __n, | |
2067 | _CharT __c) | |
2068 | { | |
2069 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2070 | && __i2 <= end()); | |
2071 | return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __c); | |
2072 | } | |
2073 | ||
2074 | /** | |
2075 | * @brief Replace range of characters with range. | |
2076 | * @param __i1 Iterator referencing start of range to replace. | |
2077 | * @param __i2 Iterator referencing end of range to replace. | |
2078 | * @param __k1 Iterator referencing start of range to insert. | |
2079 | * @param __k2 Iterator referencing end of range to insert. | |
2080 | * @return Reference to this string. | |
2081 | * @throw std::length_error If new length exceeds @c max_size(). | |
2082 | * | |
2083 | * Removes the characters in the range [__i1,__i2). In place, | |
2084 | * characters in the range [__k1,__k2) are inserted. If the | |
2085 | * length of result exceeds max_size(), length_error is thrown. | |
2086 | * The value of the string doesn't change if an error is | |
2087 | * thrown. | |
2088 | */ | |
2089 | #if __cplusplus >= 201103L | |
2090 | template<class _InputIterator, | |
2091 | typename = std::_RequireInputIter<_InputIterator>> | |
2092 | basic_string& | |
2093 | replace(const_iterator __i1, const_iterator __i2, | |
2094 | _InputIterator __k1, _InputIterator __k2) | |
2095 | { | |
2096 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2097 | && __i2 <= end()); | |
2098 | __glibcxx_requires_valid_range(__k1, __k2); | |
2099 | return this->_M_replace_dispatch(__i1, __i2, __k1, __k2, | |
2100 | std::__false_type()); | |
2101 | } | |
2102 | #else | |
2103 | template<class _InputIterator> | |
2104 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
2105 | typename __enable_if_not_native_iterator<_InputIterator>::__type | |
2106 | #else | |
2107 | basic_string& | |
2108 | #endif | |
2109 | replace(iterator __i1, iterator __i2, | |
2110 | _InputIterator __k1, _InputIterator __k2) | |
2111 | { | |
2112 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2113 | && __i2 <= end()); | |
2114 | __glibcxx_requires_valid_range(__k1, __k2); | |
2115 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; | |
2116 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); | |
2117 | } | |
2118 | #endif | |
2119 | ||
2120 | // Specializations for the common case of pointer and iterator: | |
2121 | // useful to avoid the overhead of temporary buffering in _M_replace. | |
2122 | basic_string& | |
2123 | replace(__const_iterator __i1, __const_iterator __i2, | |
2124 | _CharT* __k1, _CharT* __k2) | |
2125 | { | |
2126 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2127 | && __i2 <= end()); | |
2128 | __glibcxx_requires_valid_range(__k1, __k2); | |
2129 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2130 | __k1, __k2 - __k1); | |
2131 | } | |
2132 | ||
2133 | basic_string& | |
2134 | replace(__const_iterator __i1, __const_iterator __i2, | |
2135 | const _CharT* __k1, const _CharT* __k2) | |
2136 | { | |
2137 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2138 | && __i2 <= end()); | |
2139 | __glibcxx_requires_valid_range(__k1, __k2); | |
2140 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2141 | __k1, __k2 - __k1); | |
2142 | } | |
2143 | ||
2144 | basic_string& | |
2145 | replace(__const_iterator __i1, __const_iterator __i2, | |
2146 | iterator __k1, iterator __k2) | |
2147 | { | |
2148 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2149 | && __i2 <= end()); | |
2150 | __glibcxx_requires_valid_range(__k1, __k2); | |
2151 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2152 | __k1.base(), __k2 - __k1); | |
2153 | } | |
2154 | ||
2155 | basic_string& | |
2156 | replace(__const_iterator __i1, __const_iterator __i2, | |
2157 | const_iterator __k1, const_iterator __k2) | |
2158 | { | |
2159 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2160 | && __i2 <= end()); | |
2161 | __glibcxx_requires_valid_range(__k1, __k2); | |
2162 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2163 | __k1.base(), __k2 - __k1); | |
2164 | } | |
2165 | ||
2166 | #if __cplusplus >= 201103L | |
2167 | /** | |
2168 | * @brief Replace range of characters with initializer_list. | |
2169 | * @param __i1 Iterator referencing start of range to replace. | |
2170 | * @param __i2 Iterator referencing end of range to replace. | |
2171 | * @param __l The initializer_list of characters to insert. | |
2172 | * @return Reference to this string. | |
2173 | * @throw std::length_error If new length exceeds @c max_size(). | |
2174 | * | |
2175 | * Removes the characters in the range [__i1,__i2). In place, | |
2176 | * characters in the range [__k1,__k2) are inserted. If the | |
2177 | * length of result exceeds max_size(), length_error is thrown. | |
2178 | * The value of the string doesn't change if an error is | |
2179 | * thrown. | |
2180 | */ | |
2181 | basic_string& replace(const_iterator __i1, const_iterator __i2, | |
2182 | initializer_list<_CharT> __l) | |
17f8dc93 | 2183 | { return this->replace(__i1, __i2, __l.begin(), __l.size()); } |
34a2b755 JW |
2184 | #endif // C++11 |
2185 | ||
1a289fa3 | 2186 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2187 | /** |
2188 | * @brief Replace range of characters with string_view. | |
2189 | * @param __pos The position to replace at. | |
2190 | * @param __n The number of characters to replace. | |
df66af3b | 2191 | * @param __svt The object convertible to string_view to insert. |
ca8f2cb1 VV |
2192 | * @return Reference to this string. |
2193 | */ | |
df66af3b DK |
2194 | template<typename _Tp> |
2195 | _If_sv<_Tp, basic_string&> | |
2196 | replace(size_type __pos, size_type __n, const _Tp& __svt) | |
2197 | { | |
2198 | __sv_type __sv = __svt; | |
2199 | return this->replace(__pos, __n, __sv.data(), __sv.size()); | |
2200 | } | |
ca8f2cb1 VV |
2201 | |
2202 | /** | |
2203 | * @brief Replace range of characters with string_view. | |
2204 | * @param __pos1 The position to replace at. | |
2205 | * @param __n1 The number of characters to replace. | |
df66af3b | 2206 | * @param __svt The object convertible to string_view to insert from. |
ca8f2cb1 VV |
2207 | * @param __pos2 The position in the string_view to insert from. |
2208 | * @param __n2 The number of characters to insert. | |
2209 | * @return Reference to this string. | |
2210 | */ | |
df66af3b | 2211 | template<typename _Tp> |
657213f7 JW |
2212 | _If_sv<_Tp, basic_string&> |
2213 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, | |
2214 | size_type __pos2, size_type __n2 = npos) | |
2215 | { | |
2216 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
2217 | return this->replace(__pos1, __n1, |
2218 | __sv.data() | |
2219 | + std::__sv_check(__sv.size(), __pos2, "basic_string::replace"), | |
2220 | std::__sv_limit(__sv.size(), __pos2, __n2)); | |
657213f7 | 2221 | } |
ca8f2cb1 VV |
2222 | |
2223 | /** | |
2224 | * @brief Replace range of characters with string_view. | |
2225 | * @param __i1 An iterator referencing the start position | |
2226 | to replace at. | |
2227 | * @param __i2 An iterator referencing the end position | |
2228 | for the replace. | |
df66af3b | 2229 | * @param __svt The object convertible to string_view to insert from. |
ca8f2cb1 VV |
2230 | * @return Reference to this string. |
2231 | */ | |
df66af3b DK |
2232 | template<typename _Tp> |
2233 | _If_sv<_Tp, basic_string&> | |
2234 | replace(const_iterator __i1, const_iterator __i2, const _Tp& __svt) | |
2235 | { | |
2236 | __sv_type __sv = __svt; | |
2237 | return this->replace(__i1 - begin(), __i2 - __i1, __sv); | |
2238 | } | |
ca8f2cb1 VV |
2239 | #endif // C++17 |
2240 | ||
34a2b755 JW |
2241 | private: |
2242 | template<class _Integer> | |
2243 | basic_string& | |
2244 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2245 | _Integer __n, _Integer __val, __true_type) | |
2246 | { return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __val); } | |
2247 | ||
2248 | template<class _InputIterator> | |
2249 | basic_string& | |
2250 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2251 | _InputIterator __k1, _InputIterator __k2, | |
2252 | __false_type); | |
2253 | ||
2254 | basic_string& | |
2255 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, | |
2256 | _CharT __c); | |
2257 | ||
2258 | basic_string& | |
2259 | _M_replace(size_type __pos, size_type __len1, const _CharT* __s, | |
2260 | const size_type __len2); | |
2261 | ||
2262 | basic_string& | |
2263 | _M_append(const _CharT* __s, size_type __n); | |
2264 | ||
2265 | public: | |
2266 | ||
2267 | /** | |
2268 | * @brief Copy substring into C string. | |
2269 | * @param __s C string to copy value into. | |
2270 | * @param __n Number of characters to copy. | |
2271 | * @param __pos Index of first character to copy. | |
2272 | * @return Number of characters actually copied | |
2273 | * @throw std::out_of_range If __pos > size(). | |
2274 | * | |
2275 | * Copies up to @a __n characters starting at @a __pos into the | |
2276 | * C string @a __s. If @a __pos is %greater than size(), | |
2277 | * out_of_range is thrown. | |
2278 | */ | |
2279 | size_type | |
2280 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; | |
2281 | ||
2282 | /** | |
2283 | * @brief Swap contents with another string. | |
2284 | * @param __s String to swap with. | |
2285 | * | |
2286 | * Exchanges the contents of this string with that of @a __s in constant | |
2287 | * time. | |
2288 | */ | |
2289 | void | |
2290 | swap(basic_string& __s) _GLIBCXX_NOEXCEPT; | |
2291 | ||
2292 | // String operations: | |
2293 | /** | |
2294 | * @brief Return const pointer to null-terminated contents. | |
2295 | * | |
2296 | * This is a handle to internal data. Do not modify or dire things may | |
2297 | * happen. | |
2298 | */ | |
2299 | const _CharT* | |
2300 | c_str() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2301 | { return _M_data(); } |
34a2b755 JW |
2302 | |
2303 | /** | |
2304 | * @brief Return const pointer to contents. | |
2305 | * | |
92d58dee JW |
2306 | * This is a pointer to internal data. It is undefined to modify |
2307 | * the contents through the returned pointer. To get a pointer that | |
2308 | * allows modifying the contents use @c &str[0] instead, | |
2309 | * (or in C++17 the non-const @c str.data() overload). | |
34a2b755 JW |
2310 | */ |
2311 | const _CharT* | |
2312 | data() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2313 | { return _M_data(); } |
34a2b755 | 2314 | |
1a289fa3 | 2315 | #if __cplusplus >= 201703L |
92d58dee JW |
2316 | /** |
2317 | * @brief Return non-const pointer to contents. | |
2318 | * | |
2319 | * This is a pointer to the character sequence held by the string. | |
2320 | * Modifying the characters in the sequence is allowed. | |
2321 | */ | |
2322 | _CharT* | |
2323 | data() noexcept | |
2324 | { return _M_data(); } | |
2325 | #endif | |
2326 | ||
34a2b755 JW |
2327 | /** |
2328 | * @brief Return copy of allocator used to construct this string. | |
2329 | */ | |
2330 | allocator_type | |
2331 | get_allocator() const _GLIBCXX_NOEXCEPT | |
2332 | { return _M_get_allocator(); } | |
2333 | ||
2334 | /** | |
2335 | * @brief Find position of a C substring. | |
2336 | * @param __s C string to locate. | |
2337 | * @param __pos Index of character to search from. | |
2338 | * @param __n Number of characters from @a s to search for. | |
2339 | * @return Index of start of first occurrence. | |
2340 | * | |
2341 | * Starting from @a __pos, searches forward for the first @a | |
2342 | * __n characters in @a __s within this string. If found, | |
2343 | * returns the index where it begins. If not found, returns | |
2344 | * npos. | |
2345 | */ | |
2346 | size_type | |
39a03251 JW |
2347 | find(const _CharT* __s, size_type __pos, size_type __n) const |
2348 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2349 | |
2350 | /** | |
2351 | * @brief Find position of a string. | |
2352 | * @param __str String to locate. | |
2353 | * @param __pos Index of character to search from (default 0). | |
2354 | * @return Index of start of first occurrence. | |
2355 | * | |
2356 | * Starting from @a __pos, searches forward for value of @a __str within | |
2357 | * this string. If found, returns the index where it begins. If not | |
2358 | * found, returns npos. | |
2359 | */ | |
2360 | size_type | |
2361 | find(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2362 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2363 | { return this->find(__str.data(), __pos, __str.size()); } |
2364 | ||
1a289fa3 | 2365 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2366 | /** |
2367 | * @brief Find position of a string_view. | |
df66af3b | 2368 | * @param __svt The object convertible to string_view to locate. |
ca8f2cb1 VV |
2369 | * @param __pos Index of character to search from (default 0). |
2370 | * @return Index of start of first occurrence. | |
2371 | */ | |
df66af3b DK |
2372 | template<typename _Tp> |
2373 | _If_sv<_Tp, size_type> | |
2374 | find(const _Tp& __svt, size_type __pos = 0) const | |
2375 | noexcept(is_same<_Tp, __sv_type>::value) | |
2376 | { | |
2377 | __sv_type __sv = __svt; | |
2378 | return this->find(__sv.data(), __pos, __sv.size()); | |
2379 | } | |
ca8f2cb1 VV |
2380 | #endif // C++17 |
2381 | ||
34a2b755 JW |
2382 | /** |
2383 | * @brief Find position of a C string. | |
2384 | * @param __s C string to locate. | |
2385 | * @param __pos Index of character to search from (default 0). | |
2386 | * @return Index of start of first occurrence. | |
2387 | * | |
2388 | * Starting from @a __pos, searches forward for the value of @a | |
2389 | * __s within this string. If found, returns the index where | |
2390 | * it begins. If not found, returns npos. | |
2391 | */ | |
2392 | size_type | |
39a03251 | 2393 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2394 | { |
2395 | __glibcxx_requires_string(__s); | |
2396 | return this->find(__s, __pos, traits_type::length(__s)); | |
2397 | } | |
2398 | ||
2399 | /** | |
2400 | * @brief Find position of a character. | |
2401 | * @param __c Character to locate. | |
2402 | * @param __pos Index of character to search from (default 0). | |
2403 | * @return Index of first occurrence. | |
2404 | * | |
2405 | * Starting from @a __pos, searches forward for @a __c within | |
2406 | * this string. If found, returns the index where it was | |
2407 | * found. If not found, returns npos. | |
2408 | */ | |
2409 | size_type | |
2410 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT; | |
2411 | ||
2412 | /** | |
2413 | * @brief Find last position of a string. | |
2414 | * @param __str String to locate. | |
2415 | * @param __pos Index of character to search back from (default end). | |
2416 | * @return Index of start of last occurrence. | |
2417 | * | |
2418 | * Starting from @a __pos, searches backward for value of @a | |
2419 | * __str within this string. If found, returns the index where | |
2420 | * it begins. If not found, returns npos. | |
2421 | */ | |
2422 | size_type | |
2423 | rfind(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2424 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2425 | { return this->rfind(__str.data(), __pos, __str.size()); } |
2426 | ||
1a289fa3 | 2427 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2428 | /** |
2429 | * @brief Find last position of a string_view. | |
df66af3b | 2430 | * @param __svt The object convertible to string_view to locate. |
ca8f2cb1 VV |
2431 | * @param __pos Index of character to search back from (default end). |
2432 | * @return Index of start of last occurrence. | |
2433 | */ | |
df66af3b DK |
2434 | template<typename _Tp> |
2435 | _If_sv<_Tp, size_type> | |
2436 | rfind(const _Tp& __svt, size_type __pos = npos) const | |
2437 | noexcept(is_same<_Tp, __sv_type>::value) | |
2438 | { | |
2439 | __sv_type __sv = __svt; | |
2440 | return this->rfind(__sv.data(), __pos, __sv.size()); | |
2441 | } | |
ca8f2cb1 VV |
2442 | #endif // C++17 |
2443 | ||
34a2b755 JW |
2444 | /** |
2445 | * @brief Find last position of a C substring. | |
2446 | * @param __s C string to locate. | |
2447 | * @param __pos Index of character to search back from. | |
2448 | * @param __n Number of characters from s to search for. | |
2449 | * @return Index of start of last occurrence. | |
2450 | * | |
2451 | * Starting from @a __pos, searches backward for the first @a | |
2452 | * __n characters in @a __s within this string. If found, | |
2453 | * returns the index where it begins. If not found, returns | |
2454 | * npos. | |
2455 | */ | |
2456 | size_type | |
39a03251 JW |
2457 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
2458 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2459 | |
2460 | /** | |
2461 | * @brief Find last position of a C string. | |
2462 | * @param __s C string to locate. | |
2463 | * @param __pos Index of character to start search at (default end). | |
2464 | * @return Index of start of last occurrence. | |
2465 | * | |
2466 | * Starting from @a __pos, searches backward for the value of | |
2467 | * @a __s within this string. If found, returns the index | |
2468 | * where it begins. If not found, returns npos. | |
2469 | */ | |
2470 | size_type | |
2471 | rfind(const _CharT* __s, size_type __pos = npos) const | |
2472 | { | |
2473 | __glibcxx_requires_string(__s); | |
2474 | return this->rfind(__s, __pos, traits_type::length(__s)); | |
2475 | } | |
2476 | ||
2477 | /** | |
2478 | * @brief Find last position of a character. | |
2479 | * @param __c Character to locate. | |
2480 | * @param __pos Index of character to search back from (default end). | |
2481 | * @return Index of last occurrence. | |
2482 | * | |
2483 | * Starting from @a __pos, searches backward for @a __c within | |
2484 | * this string. If found, returns the index where it was | |
2485 | * found. If not found, returns npos. | |
2486 | */ | |
2487 | size_type | |
2488 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT; | |
2489 | ||
2490 | /** | |
2491 | * @brief Find position of a character of string. | |
2492 | * @param __str String containing characters to locate. | |
2493 | * @param __pos Index of character to search from (default 0). | |
2494 | * @return Index of first occurrence. | |
2495 | * | |
2496 | * Starting from @a __pos, searches forward for one of the | |
2497 | * characters of @a __str within this string. If found, | |
2498 | * returns the index where it was found. If not found, returns | |
2499 | * npos. | |
2500 | */ | |
2501 | size_type | |
2502 | find_first_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2503 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2504 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
2505 | ||
1a289fa3 | 2506 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2507 | /** |
2508 | * @brief Find position of a character of a string_view. | |
df66af3b DK |
2509 | * @param __svt An object convertible to string_view containing |
2510 | * characters to locate. | |
ca8f2cb1 VV |
2511 | * @param __pos Index of character to search from (default 0). |
2512 | * @return Index of first occurrence. | |
2513 | */ | |
df66af3b DK |
2514 | template<typename _Tp> |
2515 | _If_sv<_Tp, size_type> | |
2516 | find_first_of(const _Tp& __svt, size_type __pos = 0) const | |
2517 | noexcept(is_same<_Tp, __sv_type>::value) | |
2518 | { | |
2519 | __sv_type __sv = __svt; | |
2520 | return this->find_first_of(__sv.data(), __pos, __sv.size()); | |
2521 | } | |
ca8f2cb1 VV |
2522 | #endif // C++17 |
2523 | ||
34a2b755 JW |
2524 | /** |
2525 | * @brief Find position of a character of C substring. | |
2526 | * @param __s String containing characters to locate. | |
2527 | * @param __pos Index of character to search from. | |
2528 | * @param __n Number of characters from s to search for. | |
2529 | * @return Index of first occurrence. | |
2530 | * | |
2531 | * Starting from @a __pos, searches forward for one of the | |
2532 | * first @a __n characters of @a __s within this string. If | |
2533 | * found, returns the index where it was found. If not found, | |
2534 | * returns npos. | |
2535 | */ | |
2536 | size_type | |
39a03251 JW |
2537 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
2538 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2539 | |
2540 | /** | |
2541 | * @brief Find position of a character of C string. | |
2542 | * @param __s String containing characters to locate. | |
2543 | * @param __pos Index of character to search from (default 0). | |
2544 | * @return Index of first occurrence. | |
2545 | * | |
2546 | * Starting from @a __pos, searches forward for one of the | |
2547 | * characters of @a __s within this string. If found, returns | |
2548 | * the index where it was found. If not found, returns npos. | |
2549 | */ | |
2550 | size_type | |
2551 | find_first_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2552 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2553 | { |
2554 | __glibcxx_requires_string(__s); | |
2555 | return this->find_first_of(__s, __pos, traits_type::length(__s)); | |
2556 | } | |
2557 | ||
2558 | /** | |
2559 | * @brief Find position of a character. | |
2560 | * @param __c Character to locate. | |
2561 | * @param __pos Index of character to search from (default 0). | |
2562 | * @return Index of first occurrence. | |
2563 | * | |
2564 | * Starting from @a __pos, searches forward for the character | |
2565 | * @a __c within this string. If found, returns the index | |
2566 | * where it was found. If not found, returns npos. | |
2567 | * | |
2568 | * Note: equivalent to find(__c, __pos). | |
2569 | */ | |
2570 | size_type | |
2571 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT | |
2572 | { return this->find(__c, __pos); } | |
2573 | ||
2574 | /** | |
2575 | * @brief Find last position of a character of string. | |
2576 | * @param __str String containing characters to locate. | |
2577 | * @param __pos Index of character to search back from (default end). | |
2578 | * @return Index of last occurrence. | |
2579 | * | |
2580 | * Starting from @a __pos, searches backward for one of the | |
2581 | * characters of @a __str within this string. If found, | |
2582 | * returns the index where it was found. If not found, returns | |
2583 | * npos. | |
2584 | */ | |
2585 | size_type | |
2586 | find_last_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2587 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2588 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
2589 | ||
1a289fa3 | 2590 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2591 | /** |
2592 | * @brief Find last position of a character of string. | |
df66af3b DK |
2593 | * @param __svt An object convertible to string_view containing |
2594 | * characters to locate. | |
ca8f2cb1 VV |
2595 | * @param __pos Index of character to search back from (default end). |
2596 | * @return Index of last occurrence. | |
2597 | */ | |
df66af3b DK |
2598 | template<typename _Tp> |
2599 | _If_sv<_Tp, size_type> | |
2600 | find_last_of(const _Tp& __svt, size_type __pos = npos) const | |
2601 | noexcept(is_same<_Tp, __sv_type>::value) | |
2602 | { | |
2603 | __sv_type __sv = __svt; | |
2604 | return this->find_last_of(__sv.data(), __pos, __sv.size()); | |
2605 | } | |
ca8f2cb1 VV |
2606 | #endif // C++17 |
2607 | ||
34a2b755 JW |
2608 | /** |
2609 | * @brief Find last position of a character of C substring. | |
2610 | * @param __s C string containing characters to locate. | |
2611 | * @param __pos Index of character to search back from. | |
2612 | * @param __n Number of characters from s to search for. | |
2613 | * @return Index of last occurrence. | |
2614 | * | |
2615 | * Starting from @a __pos, searches backward for one of the | |
2616 | * first @a __n characters of @a __s within this string. If | |
2617 | * found, returns the index where it was found. If not found, | |
2618 | * returns npos. | |
2619 | */ | |
2620 | size_type | |
39a03251 JW |
2621 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
2622 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2623 | |
2624 | /** | |
2625 | * @brief Find last position of a character of C string. | |
2626 | * @param __s C string containing characters to locate. | |
2627 | * @param __pos Index of character to search back from (default end). | |
2628 | * @return Index of last occurrence. | |
2629 | * | |
2630 | * Starting from @a __pos, searches backward for one of the | |
2631 | * characters of @a __s within this string. If found, returns | |
2632 | * the index where it was found. If not found, returns npos. | |
2633 | */ | |
2634 | size_type | |
2635 | find_last_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 2636 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2637 | { |
2638 | __glibcxx_requires_string(__s); | |
2639 | return this->find_last_of(__s, __pos, traits_type::length(__s)); | |
2640 | } | |
2641 | ||
2642 | /** | |
2643 | * @brief Find last position of a character. | |
2644 | * @param __c Character to locate. | |
2645 | * @param __pos Index of character to search back from (default end). | |
2646 | * @return Index of last occurrence. | |
2647 | * | |
2648 | * Starting from @a __pos, searches backward for @a __c within | |
2649 | * this string. If found, returns the index where it was | |
2650 | * found. If not found, returns npos. | |
2651 | * | |
2652 | * Note: equivalent to rfind(__c, __pos). | |
2653 | */ | |
2654 | size_type | |
2655 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT | |
2656 | { return this->rfind(__c, __pos); } | |
2657 | ||
2658 | /** | |
2659 | * @brief Find position of a character not in string. | |
2660 | * @param __str String containing characters to avoid. | |
2661 | * @param __pos Index of character to search from (default 0). | |
2662 | * @return Index of first occurrence. | |
2663 | * | |
2664 | * Starting from @a __pos, searches forward for a character not contained | |
2665 | * in @a __str within this string. If found, returns the index where it | |
2666 | * was found. If not found, returns npos. | |
2667 | */ | |
2668 | size_type | |
2669 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2670 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2671 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
2672 | ||
1a289fa3 | 2673 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2674 | /** |
2675 | * @brief Find position of a character not in a string_view. | |
df66af3b DK |
2676 | * @param __svt A object convertible to string_view containing |
2677 | * characters to avoid. | |
ca8f2cb1 VV |
2678 | * @param __pos Index of character to search from (default 0). |
2679 | * @return Index of first occurrence. | |
2680 | */ | |
df66af3b DK |
2681 | template<typename _Tp> |
2682 | _If_sv<_Tp, size_type> | |
2683 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const | |
2684 | noexcept(is_same<_Tp, __sv_type>::value) | |
2685 | { | |
2686 | __sv_type __sv = __svt; | |
2687 | return this->find_first_not_of(__sv.data(), __pos, __sv.size()); | |
2688 | } | |
ca8f2cb1 VV |
2689 | #endif // C++17 |
2690 | ||
34a2b755 JW |
2691 | /** |
2692 | * @brief Find position of a character not in C substring. | |
2693 | * @param __s C string containing characters to avoid. | |
2694 | * @param __pos Index of character to search from. | |
2695 | * @param __n Number of characters from __s to consider. | |
2696 | * @return Index of first occurrence. | |
2697 | * | |
2698 | * Starting from @a __pos, searches forward for a character not | |
2699 | * contained in the first @a __n characters of @a __s within | |
2700 | * this string. If found, returns the index where it was | |
2701 | * found. If not found, returns npos. | |
2702 | */ | |
2703 | size_type | |
2704 | find_first_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 2705 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2706 | |
2707 | /** | |
2708 | * @brief Find position of a character not in C string. | |
2709 | * @param __s C string containing characters to avoid. | |
2710 | * @param __pos Index of character to search from (default 0). | |
2711 | * @return Index of first occurrence. | |
2712 | * | |
2713 | * Starting from @a __pos, searches forward for a character not | |
2714 | * contained in @a __s within this string. If found, returns | |
2715 | * the index where it was found. If not found, returns npos. | |
2716 | */ | |
2717 | size_type | |
2718 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2719 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2720 | { |
2721 | __glibcxx_requires_string(__s); | |
2722 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); | |
2723 | } | |
2724 | ||
2725 | /** | |
2726 | * @brief Find position of a different character. | |
2727 | * @param __c Character to avoid. | |
2728 | * @param __pos Index of character to search from (default 0). | |
2729 | * @return Index of first occurrence. | |
2730 | * | |
2731 | * Starting from @a __pos, searches forward for a character | |
2732 | * other than @a __c within this string. If found, returns the | |
2733 | * index where it was found. If not found, returns npos. | |
2734 | */ | |
2735 | size_type | |
2736 | find_first_not_of(_CharT __c, size_type __pos = 0) const | |
39a03251 | 2737 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2738 | |
2739 | /** | |
2740 | * @brief Find last position of a character not in string. | |
2741 | * @param __str String containing characters to avoid. | |
2742 | * @param __pos Index of character to search back from (default end). | |
2743 | * @return Index of last occurrence. | |
2744 | * | |
2745 | * Starting from @a __pos, searches backward for a character | |
2746 | * not contained in @a __str within this string. If found, | |
2747 | * returns the index where it was found. If not found, returns | |
2748 | * npos. | |
2749 | */ | |
2750 | size_type | |
2751 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2752 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2753 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
2754 | ||
1a289fa3 | 2755 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2756 | /** |
2757 | * @brief Find last position of a character not in a string_view. | |
df66af3b DK |
2758 | * @param __svt An object convertible to string_view containing |
2759 | * characters to avoid. | |
ca8f2cb1 VV |
2760 | * @param __pos Index of character to search back from (default end). |
2761 | * @return Index of last occurrence. | |
2762 | */ | |
df66af3b DK |
2763 | template<typename _Tp> |
2764 | _If_sv<_Tp, size_type> | |
2765 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const | |
2766 | noexcept(is_same<_Tp, __sv_type>::value) | |
2767 | { | |
2768 | __sv_type __sv = __svt; | |
2769 | return this->find_last_not_of(__sv.data(), __pos, __sv.size()); | |
2770 | } | |
ca8f2cb1 VV |
2771 | #endif // C++17 |
2772 | ||
34a2b755 JW |
2773 | /** |
2774 | * @brief Find last position of a character not in C substring. | |
2775 | * @param __s C string containing characters to avoid. | |
2776 | * @param __pos Index of character to search back from. | |
2777 | * @param __n Number of characters from s to consider. | |
2778 | * @return Index of last occurrence. | |
2779 | * | |
2780 | * Starting from @a __pos, searches backward for a character not | |
2781 | * contained in the first @a __n characters of @a __s within this string. | |
2782 | * If found, returns the index where it was found. If not found, | |
2783 | * returns npos. | |
2784 | */ | |
2785 | size_type | |
2786 | find_last_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 2787 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2788 | /** |
2789 | * @brief Find last position of a character not in C string. | |
2790 | * @param __s C string containing characters to avoid. | |
2791 | * @param __pos Index of character to search back from (default end). | |
2792 | * @return Index of last occurrence. | |
2793 | * | |
2794 | * Starting from @a __pos, searches backward for a character | |
2795 | * not contained in @a __s within this string. If found, | |
2796 | * returns the index where it was found. If not found, returns | |
2797 | * npos. | |
2798 | */ | |
2799 | size_type | |
2800 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 2801 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2802 | { |
2803 | __glibcxx_requires_string(__s); | |
2804 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); | |
2805 | } | |
2806 | ||
2807 | /** | |
2808 | * @brief Find last position of a different character. | |
2809 | * @param __c Character to avoid. | |
2810 | * @param __pos Index of character to search back from (default end). | |
2811 | * @return Index of last occurrence. | |
2812 | * | |
2813 | * Starting from @a __pos, searches backward for a character other than | |
2814 | * @a __c within this string. If found, returns the index where it was | |
2815 | * found. If not found, returns npos. | |
2816 | */ | |
2817 | size_type | |
2818 | find_last_not_of(_CharT __c, size_type __pos = npos) const | |
39a03251 | 2819 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2820 | |
2821 | /** | |
2822 | * @brief Get a substring. | |
2823 | * @param __pos Index of first character (default 0). | |
2824 | * @param __n Number of characters in substring (default remainder). | |
2825 | * @return The new string. | |
2826 | * @throw std::out_of_range If __pos > size(). | |
2827 | * | |
2828 | * Construct and return a new string using the @a __n | |
2829 | * characters starting at @a __pos. If the string is too | |
2830 | * short, use the remainder of the characters. If @a __pos is | |
2831 | * beyond the end of the string, out_of_range is thrown. | |
2832 | */ | |
2833 | basic_string | |
2834 | substr(size_type __pos = 0, size_type __n = npos) const | |
2835 | { return basic_string(*this, | |
2836 | _M_check(__pos, "basic_string::substr"), __n); } | |
2837 | ||
2838 | /** | |
2839 | * @brief Compare to a string. | |
2840 | * @param __str String to compare against. | |
2841 | * @return Integer < 0, 0, or > 0. | |
2842 | * | |
2843 | * Returns an integer < 0 if this string is ordered before @a | |
2844 | * __str, 0 if their values are equivalent, or > 0 if this | |
2845 | * string is ordered after @a __str. Determines the effective | |
2846 | * length rlen of the strings to compare as the smallest of | |
2847 | * size() and str.size(). The function then compares the two | |
2848 | * strings by calling traits::compare(data(), str.data(),rlen). | |
2849 | * If the result of the comparison is nonzero returns it, | |
2850 | * otherwise the shorter one is ordered first. | |
2851 | */ | |
2852 | int | |
2853 | compare(const basic_string& __str) const | |
2854 | { | |
2855 | const size_type __size = this->size(); | |
2856 | const size_type __osize = __str.size(); | |
2857 | const size_type __len = std::min(__size, __osize); | |
2858 | ||
2d60da10 | 2859 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
34a2b755 JW |
2860 | if (!__r) |
2861 | __r = _S_compare(__size, __osize); | |
2862 | return __r; | |
2863 | } | |
2864 | ||
1a289fa3 | 2865 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2866 | /** |
2867 | * @brief Compare to a string_view. | |
df66af3b | 2868 | * @param __svt An object convertible to string_view to compare against. |
ca8f2cb1 VV |
2869 | * @return Integer < 0, 0, or > 0. |
2870 | */ | |
df66af3b DK |
2871 | template<typename _Tp> |
2872 | _If_sv<_Tp, int> | |
2873 | compare(const _Tp& __svt) const | |
2874 | noexcept(is_same<_Tp, __sv_type>::value) | |
2875 | { | |
2876 | __sv_type __sv = __svt; | |
2877 | const size_type __size = this->size(); | |
2878 | const size_type __osize = __sv.size(); | |
2879 | const size_type __len = std::min(__size, __osize); | |
2880 | ||
2881 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); | |
2882 | if (!__r) | |
2883 | __r = _S_compare(__size, __osize); | |
2884 | return __r; | |
2885 | } | |
ca8f2cb1 VV |
2886 | |
2887 | /** | |
2888 | * @brief Compare to a string_view. | |
2889 | * @param __pos A position in the string to start comparing from. | |
2890 | * @param __n The number of characters to compare. | |
df66af3b DK |
2891 | * @param __svt An object convertible to string_view to compare |
2892 | * against. | |
ca8f2cb1 VV |
2893 | * @return Integer < 0, 0, or > 0. |
2894 | */ | |
df66af3b DK |
2895 | template<typename _Tp> |
2896 | _If_sv<_Tp, int> | |
2897 | compare(size_type __pos, size_type __n, const _Tp& __svt) const | |
2898 | noexcept(is_same<_Tp, __sv_type>::value) | |
2899 | { | |
2900 | __sv_type __sv = __svt; | |
2901 | return __sv_type(*this).substr(__pos, __n).compare(__sv); | |
2902 | } | |
ca8f2cb1 VV |
2903 | |
2904 | /** | |
2905 | * @brief Compare to a string_view. | |
2906 | * @param __pos1 A position in the string to start comparing from. | |
2907 | * @param __n1 The number of characters to compare. | |
df66af3b DK |
2908 | * @param __svt An object convertible to string_view to compare |
2909 | * against. | |
ca8f2cb1 VV |
2910 | * @param __pos2 A position in the string_view to start comparing from. |
2911 | * @param __n2 The number of characters to compare. | |
2912 | * @return Integer < 0, 0, or > 0. | |
2913 | */ | |
df66af3b | 2914 | template<typename _Tp> |
657213f7 JW |
2915 | _If_sv<_Tp, int> |
2916 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, | |
2917 | size_type __pos2, size_type __n2 = npos) const | |
df66af3b | 2918 | noexcept(is_same<_Tp, __sv_type>::value) |
657213f7 JW |
2919 | { |
2920 | __sv_type __sv = __svt; | |
2921 | return __sv_type(*this) | |
2922 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); | |
2923 | } | |
ca8f2cb1 VV |
2924 | #endif // C++17 |
2925 | ||
34a2b755 JW |
2926 | /** |
2927 | * @brief Compare substring to a string. | |
2928 | * @param __pos Index of first character of substring. | |
2929 | * @param __n Number of characters in substring. | |
2930 | * @param __str String to compare against. | |
2931 | * @return Integer < 0, 0, or > 0. | |
2932 | * | |
2933 | * Form the substring of this string from the @a __n characters | |
2934 | * starting at @a __pos. Returns an integer < 0 if the | |
2935 | * substring is ordered before @a __str, 0 if their values are | |
2936 | * equivalent, or > 0 if the substring is ordered after @a | |
2937 | * __str. Determines the effective length rlen of the strings | |
2938 | * to compare as the smallest of the length of the substring | |
2939 | * and @a __str.size(). The function then compares the two | |
2940 | * strings by calling | |
2941 | * traits::compare(substring.data(),str.data(),rlen). If the | |
2942 | * result of the comparison is nonzero returns it, otherwise | |
2943 | * the shorter one is ordered first. | |
2944 | */ | |
2945 | int | |
2946 | compare(size_type __pos, size_type __n, const basic_string& __str) const; | |
2947 | ||
2948 | /** | |
2949 | * @brief Compare substring to a substring. | |
2950 | * @param __pos1 Index of first character of substring. | |
2951 | * @param __n1 Number of characters in substring. | |
2952 | * @param __str String to compare against. | |
2953 | * @param __pos2 Index of first character of substring of str. | |
2954 | * @param __n2 Number of characters in substring of str. | |
2955 | * @return Integer < 0, 0, or > 0. | |
2956 | * | |
2957 | * Form the substring of this string from the @a __n1 | |
2958 | * characters starting at @a __pos1. Form the substring of @a | |
2959 | * __str from the @a __n2 characters starting at @a __pos2. | |
2960 | * Returns an integer < 0 if this substring is ordered before | |
2961 | * the substring of @a __str, 0 if their values are equivalent, | |
2962 | * or > 0 if this substring is ordered after the substring of | |
2963 | * @a __str. Determines the effective length rlen of the | |
2964 | * strings to compare as the smallest of the lengths of the | |
2965 | * substrings. The function then compares the two strings by | |
2966 | * calling | |
2967 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). | |
2968 | * If the result of the comparison is nonzero returns it, | |
2969 | * otherwise the shorter one is ordered first. | |
2970 | */ | |
2971 | int | |
2972 | compare(size_type __pos1, size_type __n1, const basic_string& __str, | |
852ee53c | 2973 | size_type __pos2, size_type __n2 = npos) const; |
34a2b755 JW |
2974 | |
2975 | /** | |
2976 | * @brief Compare to a C string. | |
2977 | * @param __s C string to compare against. | |
2978 | * @return Integer < 0, 0, or > 0. | |
2979 | * | |
2980 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if | |
2981 | * their values are equivalent, or > 0 if this string is ordered after | |
2982 | * @a __s. Determines the effective length rlen of the strings to | |
2983 | * compare as the smallest of size() and the length of a string | |
2984 | * constructed from @a __s. The function then compares the two strings | |
2985 | * by calling traits::compare(data(),s,rlen). If the result of the | |
2986 | * comparison is nonzero returns it, otherwise the shorter one is | |
2987 | * ordered first. | |
2988 | */ | |
2989 | int | |
39a03251 | 2990 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2991 | |
2992 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
2993 | // 5 String::compare specification questionable | |
2994 | /** | |
2995 | * @brief Compare substring to a C string. | |
2996 | * @param __pos Index of first character of substring. | |
2997 | * @param __n1 Number of characters in substring. | |
2998 | * @param __s C string to compare against. | |
2999 | * @return Integer < 0, 0, or > 0. | |
3000 | * | |
3001 | * Form the substring of this string from the @a __n1 | |
3002 | * characters starting at @a pos. Returns an integer < 0 if | |
3003 | * the substring is ordered before @a __s, 0 if their values | |
3004 | * are equivalent, or > 0 if the substring is ordered after @a | |
3005 | * __s. Determines the effective length rlen of the strings to | |
3006 | * compare as the smallest of the length of the substring and | |
3007 | * the length of a string constructed from @a __s. The | |
3008 | * function then compares the two string by calling | |
3009 | * traits::compare(substring.data(),__s,rlen). If the result of | |
3010 | * the comparison is nonzero returns it, otherwise the shorter | |
3011 | * one is ordered first. | |
3012 | */ | |
3013 | int | |
3014 | compare(size_type __pos, size_type __n1, const _CharT* __s) const; | |
3015 | ||
3016 | /** | |
3017 | * @brief Compare substring against a character %array. | |
3018 | * @param __pos Index of first character of substring. | |
3019 | * @param __n1 Number of characters in substring. | |
3020 | * @param __s character %array to compare against. | |
3021 | * @param __n2 Number of characters of s. | |
3022 | * @return Integer < 0, 0, or > 0. | |
3023 | * | |
3024 | * Form the substring of this string from the @a __n1 | |
3025 | * characters starting at @a __pos. Form a string from the | |
3026 | * first @a __n2 characters of @a __s. Returns an integer < 0 | |
3027 | * if this substring is ordered before the string from @a __s, | |
3028 | * 0 if their values are equivalent, or > 0 if this substring | |
3029 | * is ordered after the string from @a __s. Determines the | |
3030 | * effective length rlen of the strings to compare as the | |
3031 | * smallest of the length of the substring and @a __n2. The | |
3032 | * function then compares the two strings by calling | |
3033 | * traits::compare(substring.data(),s,rlen). If the result of | |
3034 | * the comparison is nonzero returns it, otherwise the shorter | |
3035 | * one is ordered first. | |
3036 | * | |
3037 | * NB: s must have at least n2 characters, '\\0' has | |
3038 | * no special meaning. | |
3039 | */ | |
3040 | int | |
3041 | compare(size_type __pos, size_type __n1, const _CharT* __s, | |
3042 | size_type __n2) const; | |
93ef155b | 3043 | |
5bd624fb ESR |
3044 | #if __cplusplus > 201703L |
3045 | bool | |
3046 | starts_with(basic_string_view<_CharT, _Traits> __x) const noexcept | |
3047 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3048 | ||
3049 | bool | |
3050 | starts_with(_CharT __x) const noexcept | |
3051 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3052 | ||
3053 | bool | |
3054 | starts_with(const _CharT* __x) const noexcept | |
3055 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3056 | ||
3057 | bool | |
3058 | ends_with(basic_string_view<_CharT, _Traits> __x) const noexcept | |
3059 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3060 | ||
3061 | bool | |
3062 | ends_with(_CharT __x) const noexcept | |
3063 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3064 | ||
3065 | bool | |
3066 | ends_with(const _CharT* __x) const noexcept | |
3067 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3068 | #endif // C++20 | |
3069 | ||
93ef155b JW |
3070 | // Allow basic_stringbuf::__xfer_bufptrs to call _M_length: |
3071 | template<typename, typename, typename> friend class basic_stringbuf; | |
3072 | }; | |
34a2b755 JW |
3073 | _GLIBCXX_END_NAMESPACE_CXX11 |
3074 | #else // !_GLIBCXX_USE_CXX11_ABI | |
3075 | // Reference-counted COW string implentation | |
3076 | ||
51122a42 PE |
3077 | /** |
3078 | * @class basic_string basic_string.h <string> | |
3079 | * @brief Managing sequences of characters and character-like objects. | |
3080 | * | |
abe47819 | 3081 | * @ingroup strings |
aac2878e | 3082 | * @ingroup sequences |
51122a42 | 3083 | * |
d632488a BK |
3084 | * @tparam _CharT Type of character |
3085 | * @tparam _Traits Traits for character type, defaults to | |
3086 | * char_traits<_CharT>. | |
3087 | * @tparam _Alloc Allocator type, defaults to allocator<_CharT>. | |
3088 | * | |
51122a42 PE |
3089 | * Meets the requirements of a <a href="tables.html#65">container</a>, a |
3090 | * <a href="tables.html#66">reversible container</a>, and a | |
3091 | * <a href="tables.html#67">sequence</a>. Of the | |
3092 | * <a href="tables.html#68">optional sequence requirements</a>, only | |
abe47819 | 3093 | * @c push_back, @c at, and @c %array access are supported. |
51122a42 PE |
3094 | * |
3095 | * @doctodo | |
3096 | * | |
3097 | * | |
51122a42 PE |
3098 | * Documentation? What's that? |
3099 | * Nathan Myers <ncm@cantrip.org>. | |
3100 | * | |
3101 | * A string looks like this: | |
3102 | * | |
3103 | * @code | |
3104 | * [_Rep] | |
3105 | * _M_length | |
3106 | * [basic_string<char_type>] _M_capacity | |
eee54836 | 3107 | * _M_dataplus _M_refcount |
51122a42 PE |
3108 | * _M_p ----------------> unnamed array of char_type |
3109 | * @endcode | |
3110 | * | |
3111 | * Where the _M_p points to the first character in the string, and | |
3112 | * you cast it to a pointer-to-_Rep and subtract 1 to get a | |
3113 | * pointer to the header. | |
3114 | * | |
3115 | * This approach has the enormous advantage that a string object | |
3116 | * requires only one allocation. All the ugliness is confined | |
0d1141a3 | 3117 | * within a single %pair of inline functions, which each compile to |
2a60a9f6 | 3118 | * a single @a add instruction: _Rep::_M_data(), and |
51122a42 PE |
3119 | * string::_M_rep(); and the allocation function which gets a |
3120 | * block of raw bytes and with room enough and constructs a _Rep | |
3121 | * object at the front. | |
3122 | * | |
0d1141a3 | 3123 | * The reason you want _M_data pointing to the character %array and |
51122a42 PE |
3124 | * not the _Rep is so that the debugger can see the string |
3125 | * contents. (Probably we should add a non-inline member to get | |
3126 | * the _Rep for the debugger to use, so users can check the actual | |
3127 | * string length.) | |
3128 | * | |
3129 | * Note that the _Rep object is a POD so that you can have a | |
2a60a9f6 | 3130 | * static <em>empty string</em> _Rep object already @a constructed before |
51122a42 PE |
3131 | * static constructors have run. The reference-count encoding is |
3132 | * chosen so that a 0 indicates one reference, so you never try to | |
3133 | * destroy the empty-string _Rep object. | |
3134 | * | |
3135 | * All but the last paragraph is considered pretty conventional | |
3136 | * for a C++ string implementation. | |
51122a42 | 3137 | */ |
725dc051 BK |
3138 | // 21.3 Template class basic_string |
3139 | template<typename _CharT, typename _Traits, typename _Alloc> | |
3140 | class basic_string | |
3141 | { | |
2cae56bd JW |
3142 | typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template |
3143 | rebind<_CharT>::other _CharT_alloc_type; | |
3144 | typedef __gnu_cxx::__alloc_traits<_CharT_alloc_type> _CharT_alloc_traits; | |
4fd20a8f | 3145 | |
725dc051 BK |
3146 | // Types: |
3147 | public: | |
ed6814f7 BI |
3148 | typedef _Traits traits_type; |
3149 | typedef typename _Traits::char_type value_type; | |
3150 | typedef _Alloc allocator_type; | |
4fd20a8f PC |
3151 | typedef typename _CharT_alloc_type::size_type size_type; |
3152 | typedef typename _CharT_alloc_type::difference_type difference_type; | |
4ff3e650 | 3153 | #if __cplusplus < 201103L |
4fd20a8f PC |
3154 | typedef typename _CharT_alloc_type::reference reference; |
3155 | typedef typename _CharT_alloc_type::const_reference const_reference; | |
4ff3e650 JW |
3156 | #else |
3157 | typedef value_type& reference; | |
3158 | typedef const value_type& const_reference; | |
3159 | #endif | |
2cae56bd JW |
3160 | typedef typename _CharT_alloc_traits::pointer pointer; |
3161 | typedef typename _CharT_alloc_traits::const_pointer const_pointer; | |
f1e888ae GDR |
3162 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; |
3163 | typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> | |
3164 | const_iterator; | |
ed6814f7 BI |
3165 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; |
3166 | typedef std::reverse_iterator<iterator> reverse_iterator; | |
51122a42 | 3167 | |
3eb1eda1 JW |
3168 | protected: |
3169 | // type used for positions in insert, erase etc. | |
3170 | typedef iterator __const_iterator; | |
3171 | ||
725dc051 BK |
3172 | private: |
3173 | // _Rep: string representation | |
3174 | // Invariants: | |
acbab5bf PC |
3175 | // 1. String really contains _M_length + 1 characters: due to 21.3.4 |
3176 | // must be kept null-terminated. | |
725dc051 | 3177 | // 2. _M_capacity >= _M_length |
8de63ee0 | 3178 | // Allocated memory is always (_M_capacity + 1) * sizeof(_CharT). |
1313d87f | 3179 | // 3. _M_refcount has three states: |
725dc051 BK |
3180 | // -1: leaked, one reference, no ref-copies allowed, non-const. |
3181 | // 0: one reference, non-const. | |
3182 | // n>0: n + 1 references, operations require a lock, const. | |
3183 | // 4. All fields==0 is an empty string, given the extra storage | |
3184 | // beyond-the-end for a null terminator; thus, the shared | |
3185 | // empty string representation needs no constructor. | |
ca566e4c NM |
3186 | |
3187 | struct _Rep_base | |
3188 | { | |
ed6814f7 BI |
3189 | size_type _M_length; |
3190 | size_type _M_capacity; | |
1313d87f | 3191 | _Atomic_word _M_refcount; |
ca566e4c NM |
3192 | }; |
3193 | ||
3194 | struct _Rep : _Rep_base | |
725dc051 BK |
3195 | { |
3196 | // Types: | |
2cae56bd JW |
3197 | typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template |
3198 | rebind<char>::other _Raw_bytes_alloc; | |
725dc051 | 3199 | |
51122a42 | 3200 | // (Public) Data members: |
725dc051 BK |
3201 | |
3202 | // The maximum number of individual char_type elements of an | |
3203 | // individual string is determined by _S_max_size. This is the | |
3204 | // value that will be returned by max_size(). (Whereas npos | |
3205 | // is the maximum number of bytes the allocator can allocate.) | |
3206 | // If one was to divvy up the theoretical largest size string, | |
3207 | // with a terminating character and m _CharT elements, it'd | |
51122a42 | 3208 | // look like this: |
725dc051 BK |
3209 | // npos = sizeof(_Rep) + (m * sizeof(_CharT)) + sizeof(_CharT) |
3210 | // Solving for m: | |
51122a42 | 3211 | // m = ((npos - sizeof(_Rep))/sizeof(CharT)) - 1 |
ca566e4c | 3212 | // In addition, this implementation quarters this amount. |
ed6814f7 BI |
3213 | static const size_type _S_max_size; |
3214 | static const _CharT _S_terminal; | |
725dc051 | 3215 | |
ca566e4c NM |
3216 | // The following storage is init'd to 0 by the linker, resulting |
3217 | // (carefully) in an empty string with one reference. | |
3218 | static size_type _S_empty_rep_storage[]; | |
51122a42 | 3219 | |
ed6814f7 | 3220 | static _Rep& |
d15ac9d9 | 3221 | _S_empty_rep() _GLIBCXX_NOEXCEPT |
7fdc0307 PC |
3222 | { |
3223 | // NB: Mild hack to avoid strict-aliasing warnings. Note that | |
3224 | // _S_empty_rep_storage is never modified and the punning should | |
3225 | // be reasonably safe in this case. | |
3226 | void* __p = reinterpret_cast<void*>(&_S_empty_rep_storage); | |
3227 | return *reinterpret_cast<_Rep*>(__p); | |
3228 | } | |
ed6814f7 | 3229 | |
725dc051 | 3230 | bool |
d15ac9d9 | 3231 | _M_is_leaked() const _GLIBCXX_NOEXCEPT |
71046523 DV |
3232 | { |
3233 | #if defined(__GTHREADS) | |
3234 | // _M_refcount is mutated concurrently by _M_refcopy/_M_dispose, | |
3235 | // so we need to use an atomic load. However, _M_is_leaked | |
3236 | // predicate does not change concurrently (i.e. the string is either | |
3237 | // leaked or not), so a relaxed load is enough. | |
3238 | return __atomic_load_n(&this->_M_refcount, __ATOMIC_RELAXED) < 0; | |
3239 | #else | |
3240 | return this->_M_refcount < 0; | |
3241 | #endif | |
3242 | } | |
725dc051 BK |
3243 | |
3244 | bool | |
d15ac9d9 | 3245 | _M_is_shared() const _GLIBCXX_NOEXCEPT |
71046523 DV |
3246 | { |
3247 | #if defined(__GTHREADS) | |
3248 | // _M_refcount is mutated concurrently by _M_refcopy/_M_dispose, | |
3249 | // so we need to use an atomic load. Another thread can drop last | |
3250 | // but one reference concurrently with this check, so we need this | |
3251 | // load to be acquire to synchronize with release fetch_and_add in | |
3252 | // _M_dispose. | |
3253 | return __atomic_load_n(&this->_M_refcount, __ATOMIC_ACQUIRE) > 0; | |
3254 | #else | |
3255 | return this->_M_refcount > 0; | |
3256 | #endif | |
3257 | } | |
725dc051 BK |
3258 | |
3259 | void | |
d15ac9d9 | 3260 | _M_set_leaked() _GLIBCXX_NOEXCEPT |
1313d87f | 3261 | { this->_M_refcount = -1; } |
725dc051 BK |
3262 | |
3263 | void | |
d15ac9d9 | 3264 | _M_set_sharable() _GLIBCXX_NOEXCEPT |
1313d87f | 3265 | { this->_M_refcount = 0; } |
725dc051 | 3266 | |
cbf52bfa | 3267 | void |
d15ac9d9 | 3268 | _M_set_length_and_sharable(size_type __n) _GLIBCXX_NOEXCEPT |
7309083f | 3269 | { |
d7a3ef97 | 3270 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
7309083f PC |
3271 | if (__builtin_expect(this != &_S_empty_rep(), false)) |
3272 | #endif | |
3273 | { | |
3274 | this->_M_set_sharable(); // One reference. | |
3275 | this->_M_length = __n; | |
3276 | traits_type::assign(this->_M_refdata()[__n], _S_terminal); | |
3277 | // grrr. (per 21.3.4) | |
3278 | // You cannot leave those LWG people alone for a second. | |
3279 | } | |
cbf52bfa PC |
3280 | } |
3281 | ||
51122a42 | 3282 | _CharT* |
725dc051 | 3283 | _M_refdata() throw() |
663653eb | 3284 | { return reinterpret_cast<_CharT*>(this + 1); } |
725dc051 | 3285 | |
51122a42 | 3286 | _CharT* |
725dc051 | 3287 | _M_grab(const _Alloc& __alloc1, const _Alloc& __alloc2) |
51122a42 PE |
3288 | { |
3289 | return (!_M_is_leaked() && __alloc1 == __alloc2) | |
3290 | ? _M_refcopy() : _M_clone(__alloc1); | |
663653eb | 3291 | } |
725dc051 BK |
3292 | |
3293 | // Create & Destroy | |
51122a42 | 3294 | static _Rep* |
234e0d31 | 3295 | _S_create(size_type, size_type, const _Alloc&); |
725dc051 | 3296 | |
51122a42 | 3297 | void |
d15ac9d9 | 3298 | _M_dispose(const _Alloc& __a) _GLIBCXX_NOEXCEPT |
51122a42 | 3299 | { |
d7a3ef97 | 3300 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
ca566e4c | 3301 | if (__builtin_expect(this != &_S_empty_rep(), false)) |
1165dc50 | 3302 | #endif |
be335b18 KS |
3303 | { |
3304 | // Be race-detector-friendly. For more info see bits/c++config. | |
8c61f400 | 3305 | _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount); |
71046523 DV |
3306 | // Decrement of _M_refcount is acq_rel, because: |
3307 | // - all but last decrements need to release to synchronize with | |
3308 | // the last decrement that will delete the object. | |
3309 | // - the last decrement needs to acquire to synchronize with | |
3310 | // all the previous decrements. | |
3311 | // - last but one decrement needs to release to synchronize with | |
3312 | // the acquire load in _M_is_shared that will conclude that | |
3313 | // the object is not shared anymore. | |
be335b18 KS |
3314 | if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, |
3315 | -1) <= 0) | |
3316 | { | |
8c61f400 | 3317 | _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount); |
be335b18 KS |
3318 | _M_destroy(__a); |
3319 | } | |
3320 | } | |
725dc051 BK |
3321 | } // XXX MT |
3322 | ||
51122a42 | 3323 | void |
725dc051 BK |
3324 | _M_destroy(const _Alloc&) throw(); |
3325 | ||
51122a42 | 3326 | _CharT* |
725dc051 | 3327 | _M_refcopy() throw() |
51122a42 | 3328 | { |
d7a3ef97 | 3329 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
ca566e4c | 3330 | if (__builtin_expect(this != &_S_empty_rep(), false)) |
1165dc50 | 3331 | #endif |
b7ee72de | 3332 | __gnu_cxx::__atomic_add_dispatch(&this->_M_refcount, 1); |
51122a42 | 3333 | return _M_refdata(); |
725dc051 BK |
3334 | } // XXX MT |
3335 | ||
51122a42 | 3336 | _CharT* |
725dc051 | 3337 | _M_clone(const _Alloc&, size_type __res = 0); |
725dc051 BK |
3338 | }; |
3339 | ||
3340 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html | |
3341 | struct _Alloc_hider : _Alloc | |
3342 | { | |
d15ac9d9 | 3343 | _Alloc_hider(_CharT* __dat, const _Alloc& __a) _GLIBCXX_NOEXCEPT |
725dc051 BK |
3344 | : _Alloc(__a), _M_p(__dat) { } |
3345 | ||
3346 | _CharT* _M_p; // The actual data. | |
3347 | }; | |
3348 | ||
3349 | public: | |
3350 | // Data Members (public): | |
3351 | // NB: This is an unsigned type, and thus represents the maximum | |
3352 | // size that the allocator can hold. | |
20fff8cd | 3353 | /// Value returned by various member functions when they fail. |
ed6814f7 | 3354 | static const size_type npos = static_cast<size_type>(-1); |
725dc051 BK |
3355 | |
3356 | private: | |
3357 | // Data Members (private): | |
ed6814f7 | 3358 | mutable _Alloc_hider _M_dataplus; |
725dc051 | 3359 | |
51122a42 | 3360 | _CharT* |
d15ac9d9 | 3361 | _M_data() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3362 | { return _M_dataplus._M_p; } |
3363 | ||
51122a42 | 3364 | _CharT* |
d15ac9d9 | 3365 | _M_data(_CharT* __p) _GLIBCXX_NOEXCEPT |
725dc051 BK |
3366 | { return (_M_dataplus._M_p = __p); } |
3367 | ||
51122a42 | 3368 | _Rep* |
d15ac9d9 | 3369 | _M_rep() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3370 | { return &((reinterpret_cast<_Rep*> (_M_data()))[-1]); } |
3371 | ||
3372 | // For the internal use we have functions similar to `begin'/`end' | |
3373 | // but they do not call _M_leak. | |
51122a42 | 3374 | iterator |
d15ac9d9 | 3375 | _M_ibegin() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3376 | { return iterator(_M_data()); } |
725dc051 | 3377 | |
51122a42 | 3378 | iterator |
d15ac9d9 | 3379 | _M_iend() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3380 | { return iterator(_M_data() + this->size()); } |
725dc051 | 3381 | |
51122a42 | 3382 | void |
725dc051 | 3383 | _M_leak() // for use in begin() & non-const op[] |
51122a42 PE |
3384 | { |
3385 | if (!_M_rep()->_M_is_leaked()) | |
3386 | _M_leak_hard(); | |
725dc051 BK |
3387 | } |
3388 | ||
e03a6fb7 PC |
3389 | size_type |
3390 | _M_check(size_type __pos, const char* __s) const | |
51122a42 | 3391 | { |
e2c09482 | 3392 | if (__pos > this->size()) |
9779c871 PP |
3393 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > " |
3394 | "this->size() (which is %zu)"), | |
3395 | __s, __pos, this->size()); | |
e03a6fb7 | 3396 | return __pos; |
725dc051 BK |
3397 | } |
3398 | ||
ec61e852 PC |
3399 | void |
3400 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const | |
3401 | { | |
3402 | if (this->max_size() - (this->size() - __n1) < __n2) | |
3403 | __throw_length_error(__N(__s)); | |
3404 | } | |
3405 | ||
e03a6fb7 PC |
3406 | // NB: _M_limit doesn't check for a bad __pos value. |
3407 | size_type | |
d15ac9d9 | 3408 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT |
51122a42 | 3409 | { |
7778fa6e | 3410 | const bool __testoff = __off < this->size() - __pos; |
e03a6fb7 | 3411 | return __testoff ? __off : this->size() - __pos; |
725dc051 BK |
3412 | } |
3413 | ||
8eae76be PC |
3414 | // True if _Rep and source do not overlap. |
3415 | bool | |
d15ac9d9 | 3416 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT |
8eae76be PC |
3417 | { |
3418 | return (less<const _CharT*>()(__s, _M_data()) | |
3419 | || less<const _CharT*>()(_M_data() + this->size(), __s)); | |
3420 | } | |
3421 | ||
ec61e852 PC |
3422 | // When __n = 1 way faster than the general multichar |
3423 | // traits_type::copy/move/assign. | |
3424 | static void | |
d15ac9d9 | 3425 | _M_copy(_CharT* __d, const _CharT* __s, size_type __n) _GLIBCXX_NOEXCEPT |
ec61e852 PC |
3426 | { |
3427 | if (__n == 1) | |
3428 | traits_type::assign(*__d, *__s); | |
3429 | else | |
3430 | traits_type::copy(__d, __s, __n); | |
3431 | } | |
3432 | ||
3433 | static void | |
d15ac9d9 | 3434 | _M_move(_CharT* __d, const _CharT* __s, size_type __n) _GLIBCXX_NOEXCEPT |
ec61e852 PC |
3435 | { |
3436 | if (__n == 1) | |
3437 | traits_type::assign(*__d, *__s); | |
3438 | else | |
3439 | traits_type::move(__d, __s, __n); | |
3440 | } | |
3441 | ||
3442 | static void | |
d15ac9d9 | 3443 | _M_assign(_CharT* __d, size_type __n, _CharT __c) _GLIBCXX_NOEXCEPT |
ec61e852 PC |
3444 | { |
3445 | if (__n == 1) | |
3446 | traits_type::assign(*__d, __c); | |
3447 | else | |
3448 | traits_type::assign(__d, __n, __c); | |
3449 | } | |
3450 | ||
725dc051 BK |
3451 | // _S_copy_chars is a separate template to permit specialization |
3452 | // to optimize for the common case of pointers as iterators. | |
3453 | template<class _Iterator> | |
3454 | static void | |
3455 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) | |
51122a42 | 3456 | { |
f970a17d | 3457 | for (; __k1 != __k2; ++__k1, (void)++__p) |
9a304d17 | 3458 | traits_type::assign(*__p, *__k1); // These types are off. |
725dc051 BK |
3459 | } |
3460 | ||
3461 | static void | |
d15ac9d9 | 3462 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPT |
725dc051 BK |
3463 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } |
3464 | ||
3465 | static void | |
3466 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) | |
d15ac9d9 | 3467 | _GLIBCXX_NOEXCEPT |
725dc051 | 3468 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } |
51122a42 | 3469 | |
725dc051 | 3470 | static void |
d15ac9d9 | 3471 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPT |
ec61e852 | 3472 | { _M_copy(__p, __k1, __k2 - __k1); } |
725dc051 BK |
3473 | |
3474 | static void | |
3475 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) | |
d15ac9d9 | 3476 | _GLIBCXX_NOEXCEPT |
ec61e852 | 3477 | { _M_copy(__p, __k1, __k2 - __k1); } |
725dc051 | 3478 | |
9521dd6b | 3479 | static int |
d15ac9d9 | 3480 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPT |
9521dd6b PC |
3481 | { |
3482 | const difference_type __d = difference_type(__n1 - __n2); | |
3483 | ||
6725add5 PC |
3484 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) |
3485 | return __gnu_cxx::__numeric_traits<int>::__max; | |
3486 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) | |
3487 | return __gnu_cxx::__numeric_traits<int>::__min; | |
9521dd6b | 3488 | else |
6725add5 | 3489 | return int(__d); |
9521dd6b PC |
3490 | } |
3491 | ||
51122a42 | 3492 | void |
725dc051 BK |
3493 | _M_mutate(size_type __pos, size_type __len1, size_type __len2); |
3494 | ||
51122a42 | 3495 | void |
725dc051 BK |
3496 | _M_leak_hard(); |
3497 | ||
51122a42 | 3498 | static _Rep& |
d15ac9d9 | 3499 | _S_empty_rep() _GLIBCXX_NOEXCEPT |
ca566e4c | 3500 | { return _Rep::_S_empty_rep(); } |
725dc051 | 3501 | |
1a289fa3 | 3502 | #if __cplusplus >= 201703L |
92daf2de JW |
3503 | // A helper type for avoiding boiler-plate. |
3504 | typedef basic_string_view<_CharT, _Traits> __sv_type; | |
3505 | ||
3506 | template<typename _Tp, typename _Res> | |
3507 | using _If_sv = enable_if_t< | |
3508 | __and_<is_convertible<const _Tp&, __sv_type>, | |
9d2bac69 | 3509 | __not_<is_convertible<const _Tp*, const basic_string*>>, |
92daf2de JW |
3510 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, |
3511 | _Res>; | |
df66af3b DK |
3512 | |
3513 | // Allows an implicit conversion to __sv_type. | |
3514 | static __sv_type | |
3515 | _S_to_string_view(__sv_type __svt) noexcept | |
3516 | { return __svt; } | |
3517 | ||
3518 | // Wraps a string_view by explicit conversion and thus | |
3519 | // allows to add an internal constructor that does not | |
3520 | // participate in overload resolution when a string_view | |
3521 | // is provided. | |
3522 | struct __sv_wrapper | |
3523 | { | |
3524 | explicit __sv_wrapper(__sv_type __sv) noexcept : _M_sv(__sv) { } | |
3525 | __sv_type _M_sv; | |
3526 | }; | |
1a289fa3 JW |
3527 | |
3528 | /** | |
3529 | * @brief Only internally used: Construct string from a string view | |
3530 | * wrapper. | |
3531 | * @param __svw string view wrapper. | |
3532 | * @param __a Allocator to use. | |
3533 | */ | |
3534 | explicit | |
3535 | basic_string(__sv_wrapper __svw, const _Alloc& __a) | |
3536 | : basic_string(__svw._M_sv.data(), __svw._M_sv.size(), __a) { } | |
92daf2de JW |
3537 | #endif |
3538 | ||
725dc051 BK |
3539 | public: |
3540 | // Construct/copy/destroy: | |
3541 | // NB: We overload ctors in some cases instead of using default | |
3542 | // arguments, per 17.4.4.4 para. 2 item 2. | |
3543 | ||
284f19bf JQ |
3544 | /** |
3545 | * @brief Default constructor creates an empty string. | |
3546 | */ | |
10154e0d | 3547 | basic_string() |
d7a3ef97 | 3548 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
d8d9b83b | 3549 | _GLIBCXX_NOEXCEPT |
4ff3e650 | 3550 | : _M_dataplus(_S_empty_rep()._M_refdata(), _Alloc()) |
10154e0d | 3551 | #else |
4ff3e650 | 3552 | : _M_dataplus(_S_construct(size_type(), _CharT(), _Alloc()), _Alloc()) |
10154e0d | 3553 | #endif |
4ff3e650 | 3554 | { } |
725dc051 | 3555 | |
284f19bf | 3556 | /** |
a65da37d | 3557 | * @brief Construct an empty string using allocator @a a. |
284f19bf | 3558 | */ |
51122a42 | 3559 | explicit |
725dc051 BK |
3560 | basic_string(const _Alloc& __a); |
3561 | ||
3562 | // NB: per LWG issue 42, semantics different from IS: | |
284f19bf JQ |
3563 | /** |
3564 | * @brief Construct string with copy of value of @a str. | |
93c66bc6 | 3565 | * @param __str Source string. |
284f19bf | 3566 | */ |
725dc051 | 3567 | basic_string(const basic_string& __str); |
86bbf15b JW |
3568 | |
3569 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3570 | // 2583. no way to supply an allocator for basic_string(str, pos) | |
3571 | /** | |
3572 | * @brief Construct string as copy of a substring. | |
3573 | * @param __str Source string. | |
3574 | * @param __pos Index of first character to copy from. | |
3575 | * @param __a Allocator to use. | |
3576 | */ | |
3577 | basic_string(const basic_string& __str, size_type __pos, | |
3578 | const _Alloc& __a = _Alloc()); | |
3579 | ||
284f19bf JQ |
3580 | /** |
3581 | * @brief Construct string as copy of a substring. | |
93c66bc6 BK |
3582 | * @param __str Source string. |
3583 | * @param __pos Index of first character to copy from. | |
86bbf15b | 3584 | * @param __n Number of characters to copy. |
284f19bf | 3585 | */ |
725dc051 | 3586 | basic_string(const basic_string& __str, size_type __pos, |
86bbf15b | 3587 | size_type __n); |
284f19bf JQ |
3588 | /** |
3589 | * @brief Construct string as copy of a substring. | |
93c66bc6 BK |
3590 | * @param __str Source string. |
3591 | * @param __pos Index of first character to copy from. | |
3592 | * @param __n Number of characters to copy. | |
3593 | * @param __a Allocator to use. | |
284f19bf | 3594 | */ |
725dc051 BK |
3595 | basic_string(const basic_string& __str, size_type __pos, |
3596 | size_type __n, const _Alloc& __a); | |
3597 | ||
284f19bf | 3598 | /** |
0d1141a3 | 3599 | * @brief Construct string initialized by a character %array. |
93c66bc6 BK |
3600 | * @param __s Source character %array. |
3601 | * @param __n Number of characters to copy. | |
3602 | * @param __a Allocator to use (default is default allocator). | |
ed6814f7 | 3603 | * |
93c66bc6 | 3604 | * NB: @a __s must have at least @a __n characters, '\\0' |
2a60a9f6 | 3605 | * has no special meaning. |
284f19bf | 3606 | */ |
725dc051 BK |
3607 | basic_string(const _CharT* __s, size_type __n, |
3608 | const _Alloc& __a = _Alloc()); | |
284f19bf JQ |
3609 | /** |
3610 | * @brief Construct string as copy of a C string. | |
93c66bc6 BK |
3611 | * @param __s Source C string. |
3612 | * @param __a Allocator to use (default is default allocator). | |
284f19bf | 3613 | */ |
725dc051 | 3614 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()); |
284f19bf JQ |
3615 | /** |
3616 | * @brief Construct string as multiple characters. | |
93c66bc6 BK |
3617 | * @param __n Number of characters. |
3618 | * @param __c Character to use. | |
3619 | * @param __a Allocator to use (default is default allocator). | |
284f19bf | 3620 | */ |
725dc051 BK |
3621 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()); |
3622 | ||
734f5023 | 3623 | #if __cplusplus >= 201103L |
10154e0d PC |
3624 | /** |
3625 | * @brief Move construct string. | |
93c66bc6 | 3626 | * @param __str Source string. |
10154e0d | 3627 | * |
93c66bc6 BK |
3628 | * The newly-created string contains the exact contents of @a __str. |
3629 | * @a __str is a valid, but unspecified string. | |
10154e0d | 3630 | **/ |
63ebd8f1 MG |
3631 | basic_string(basic_string&& __str) |
3632 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 | |
3633 | noexcept // FIXME C++11: should always be noexcept. | |
3634 | #endif | |
4ff3e650 | 3635 | : _M_dataplus(std::move(__str._M_dataplus)) |
10154e0d | 3636 | { |
d7a3ef97 | 3637 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
10154e0d PC |
3638 | __str._M_data(_S_empty_rep()._M_refdata()); |
3639 | #else | |
3640 | __str._M_data(_S_construct(size_type(), _CharT(), get_allocator())); | |
3641 | #endif | |
3642 | } | |
3643 | ||
988499f4 | 3644 | /** |
0d1141a3 | 3645 | * @brief Construct string from an initializer %list. |
93c66bc6 BK |
3646 | * @param __l std::initializer_list of characters. |
3647 | * @param __a Allocator to use (default is default allocator). | |
988499f4 JM |
3648 | */ |
3649 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()); | |
4ff3e650 JW |
3650 | |
3651 | basic_string(const basic_string& __str, const _Alloc& __a) | |
3652 | : _M_dataplus(__str._M_rep()->_M_grab(__a, __str.get_allocator()), __a) | |
3653 | { } | |
3654 | ||
3655 | basic_string(basic_string&& __str, const _Alloc& __a) | |
3656 | : _M_dataplus(__str._M_data(), __a) | |
3657 | { | |
3658 | if (__a == __str.get_allocator()) | |
3659 | { | |
3660 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 | |
3661 | __str._M_data(_S_empty_rep()._M_refdata()); | |
3662 | #else | |
3663 | __str._M_data(_S_construct(size_type(), _CharT(), __a)); | |
3664 | #endif | |
3665 | } | |
3666 | else | |
3667 | _M_dataplus._M_p = _S_construct(__str.begin(), __str.end(), __a); | |
3668 | } | |
734f5023 | 3669 | #endif // C++11 |
988499f4 | 3670 | |
284f19bf JQ |
3671 | /** |
3672 | * @brief Construct string as copy of a range. | |
93c66bc6 BK |
3673 | * @param __beg Start of range. |
3674 | * @param __end End of range. | |
3675 | * @param __a Allocator to use (default is default allocator). | |
284f19bf | 3676 | */ |
725dc051 | 3677 | template<class _InputIterator> |
9a304d17 | 3678 | basic_string(_InputIterator __beg, _InputIterator __end, |
725dc051 BK |
3679 | const _Alloc& __a = _Alloc()); |
3680 | ||
1a289fa3 | 3681 | #if __cplusplus >= 201703L |
92daf2de JW |
3682 | /** |
3683 | * @brief Construct string from a substring of a string_view. | |
df66af3b | 3684 | * @param __t Source object convertible to string view. |
92daf2de JW |
3685 | * @param __pos The index of the first character to copy from __t. |
3686 | * @param __n The number of characters to copy from __t. | |
3687 | * @param __a Allocator to use. | |
3688 | */ | |
3689 | template<typename _Tp, typename = _If_sv<_Tp, void>> | |
3690 | basic_string(const _Tp& __t, size_type __pos, size_type __n, | |
3691 | const _Alloc& __a = _Alloc()) | |
df66af3b | 3692 | : basic_string(_S_to_string_view(__t).substr(__pos, __n), __a) { } |
92daf2de JW |
3693 | |
3694 | /** | |
3695 | * @brief Construct string from a string_view. | |
df66af3b | 3696 | * @param __t Source object convertible to string view. |
92daf2de JW |
3697 | * @param __a Allocator to use (default is default allocator). |
3698 | */ | |
df66af3b DK |
3699 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
3700 | explicit | |
3701 | basic_string(const _Tp& __t, const _Alloc& __a = _Alloc()) | |
3702 | : basic_string(__sv_wrapper(_S_to_string_view(__t)), __a) { } | |
92daf2de JW |
3703 | #endif // C++17 |
3704 | ||
284f19bf JQ |
3705 | /** |
3706 | * @brief Destroy the string instance. | |
3707 | */ | |
6f59ea25 | 3708 | ~basic_string() _GLIBCXX_NOEXCEPT |
725dc051 BK |
3709 | { _M_rep()->_M_dispose(this->get_allocator()); } |
3710 | ||
284f19bf JQ |
3711 | /** |
3712 | * @brief Assign the value of @a str to this string. | |
93c66bc6 | 3713 | * @param __str Source string. |
284f19bf | 3714 | */ |
51122a42 | 3715 | basic_string& |
d8d9b83b | 3716 | operator=(const basic_string& __str) |
75f29cdd | 3717 | { return this->assign(__str); } |
725dc051 | 3718 | |
284f19bf JQ |
3719 | /** |
3720 | * @brief Copy contents of @a s into this string. | |
93c66bc6 | 3721 | * @param __s Source null-terminated string. |
284f19bf | 3722 | */ |
51122a42 | 3723 | basic_string& |
26c691a8 | 3724 | operator=(const _CharT* __s) |
75f29cdd | 3725 | { return this->assign(__s); } |
725dc051 | 3726 | |
284f19bf JQ |
3727 | /** |
3728 | * @brief Set value to string of length 1. | |
93c66bc6 | 3729 | * @param __c Source character. |
284f19bf JQ |
3730 | * |
3731 | * Assigning to a character makes this string length 1 and | |
3732 | * (*this)[0] == @a c. | |
3733 | */ | |
51122a42 | 3734 | basic_string& |
26c691a8 BK |
3735 | operator=(_CharT __c) |
3736 | { | |
3737 | this->assign(1, __c); | |
3738 | return *this; | |
3739 | } | |
725dc051 | 3740 | |
734f5023 | 3741 | #if __cplusplus >= 201103L |
10154e0d PC |
3742 | /** |
3743 | * @brief Move assign the value of @a str to this string. | |
93c66bc6 | 3744 | * @param __str Source string. |
10154e0d PC |
3745 | * |
3746 | * The contents of @a str are moved into this string (without copying). | |
3747 | * @a str is a valid, but unspecified string. | |
3748 | **/ | |
3749 | basic_string& | |
3750 | operator=(basic_string&& __str) | |
d8d9b83b | 3751 | _GLIBCXX_NOEXCEPT_IF(allocator_traits<_Alloc>::is_always_equal::value) |
10154e0d PC |
3752 | { |
3753 | // NB: DR 1204. | |
3754 | this->swap(__str); | |
3755 | return *this; | |
3756 | } | |
3757 | ||
988499f4 | 3758 | /** |
0d1141a3 | 3759 | * @brief Set value to string constructed from initializer %list. |
93c66bc6 | 3760 | * @param __l std::initializer_list. |
988499f4 JM |
3761 | */ |
3762 | basic_string& | |
3763 | operator=(initializer_list<_CharT> __l) | |
3764 | { | |
5cab7013 | 3765 | this->assign(__l.begin(), __l.size()); |
988499f4 JM |
3766 | return *this; |
3767 | } | |
734f5023 | 3768 | #endif // C++11 |
988499f4 | 3769 | |
1a289fa3 | 3770 | #if __cplusplus >= 201703L |
92daf2de JW |
3771 | /** |
3772 | * @brief Set value to string constructed from a string_view. | |
df66af3b | 3773 | * @param __svt An object convertible to string_view. |
92daf2de | 3774 | */ |
4f83482f JW |
3775 | template<typename _Tp> |
3776 | _If_sv<_Tp, basic_string&> | |
df66af3b DK |
3777 | operator=(const _Tp& __svt) |
3778 | { return this->assign(__svt); } | |
92daf2de JW |
3779 | |
3780 | /** | |
3781 | * @brief Convert to a string_view. | |
3782 | * @return A string_view. | |
3783 | */ | |
3784 | operator __sv_type() const noexcept | |
3785 | { return __sv_type(data(), size()); } | |
3786 | #endif // C++17 | |
3787 | ||
725dc051 | 3788 | // Iterators: |
284f19bf JQ |
3789 | /** |
3790 | * Returns a read/write iterator that points to the first character in | |
3791 | * the %string. Unshares the string. | |
3792 | */ | |
51122a42 | 3793 | iterator |
63ebd8f1 | 3794 | begin() // FIXME C++11: should be noexcept. |
51122a42 PE |
3795 | { |
3796 | _M_leak(); | |
725dc051 BK |
3797 | return iterator(_M_data()); |
3798 | } | |
3799 | ||
284f19bf JQ |
3800 | /** |
3801 | * Returns a read-only (constant) iterator that points to the first | |
3802 | * character in the %string. | |
3803 | */ | |
51122a42 | 3804 | const_iterator |
cea8c6de | 3805 | begin() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3806 | { return const_iterator(_M_data()); } |
3807 | ||
284f19bf JQ |
3808 | /** |
3809 | * Returns a read/write iterator that points one past the last | |
3810 | * character in the %string. Unshares the string. | |
3811 | */ | |
51122a42 | 3812 | iterator |
63ebd8f1 | 3813 | end() // FIXME C++11: should be noexcept. |
725dc051 | 3814 | { |
7778fa6e PC |
3815 | _M_leak(); |
3816 | return iterator(_M_data() + this->size()); | |
725dc051 BK |
3817 | } |
3818 | ||
284f19bf JQ |
3819 | /** |
3820 | * Returns a read-only (constant) iterator that points one past the | |
3821 | * last character in the %string. | |
3822 | */ | |
51122a42 | 3823 | const_iterator |
cea8c6de | 3824 | end() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3825 | { return const_iterator(_M_data() + this->size()); } |
3826 | ||
284f19bf JQ |
3827 | /** |
3828 | * Returns a read/write reverse iterator that points to the last | |
3829 | * character in the %string. Iteration is done in reverse element | |
3830 | * order. Unshares the string. | |
3831 | */ | |
51122a42 | 3832 | reverse_iterator |
63ebd8f1 | 3833 | rbegin() // FIXME C++11: should be noexcept. |
725dc051 BK |
3834 | { return reverse_iterator(this->end()); } |
3835 | ||
284f19bf JQ |
3836 | /** |
3837 | * Returns a read-only (constant) reverse iterator that points | |
3838 | * to the last character in the %string. Iteration is done in | |
3839 | * reverse element order. | |
3840 | */ | |
51122a42 | 3841 | const_reverse_iterator |
cea8c6de | 3842 | rbegin() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3843 | { return const_reverse_iterator(this->end()); } |
3844 | ||
284f19bf JQ |
3845 | /** |
3846 | * Returns a read/write reverse iterator that points to one before the | |
3847 | * first character in the %string. Iteration is done in reverse | |
3848 | * element order. Unshares the string. | |
3849 | */ | |
51122a42 | 3850 | reverse_iterator |
63ebd8f1 | 3851 | rend() // FIXME C++11: should be noexcept. |
725dc051 BK |
3852 | { return reverse_iterator(this->begin()); } |
3853 | ||
284f19bf JQ |
3854 | /** |
3855 | * Returns a read-only (constant) reverse iterator that points | |
3856 | * to one before the first character in the %string. Iteration | |
3857 | * is done in reverse element order. | |
3858 | */ | |
51122a42 | 3859 | const_reverse_iterator |
cea8c6de | 3860 | rend() const _GLIBCXX_NOEXCEPT |
725dc051 BK |
3861 | { return const_reverse_iterator(this->begin()); } |
3862 | ||
734f5023 | 3863 | #if __cplusplus >= 201103L |
439a0f5a BK |
3864 | /** |
3865 | * Returns a read-only (constant) iterator that points to the first | |
3866 | * character in the %string. | |
3867 | */ | |
3868 | const_iterator | |
cea8c6de | 3869 | cbegin() const noexcept |
439a0f5a BK |
3870 | { return const_iterator(this->_M_data()); } |
3871 | ||
3872 | /** | |
3873 | * Returns a read-only (constant) iterator that points one past the | |
3874 | * last character in the %string. | |
3875 | */ | |
3876 | const_iterator | |
cea8c6de | 3877 | cend() const noexcept |
439a0f5a BK |
3878 | { return const_iterator(this->_M_data() + this->size()); } |
3879 | ||
3880 | /** | |
3881 | * Returns a read-only (constant) reverse iterator that points | |
3882 | * to the last character in the %string. Iteration is done in | |
3883 | * reverse element order. | |
3884 | */ | |
3885 | const_reverse_iterator | |
cea8c6de | 3886 | crbegin() const noexcept |
439a0f5a BK |
3887 | { return const_reverse_iterator(this->end()); } |
3888 | ||
3889 | /** | |
3890 | * Returns a read-only (constant) reverse iterator that points | |
3891 | * to one before the first character in the %string. Iteration | |
3892 | * is done in reverse element order. | |
3893 | */ | |
3894 | const_reverse_iterator | |
cea8c6de | 3895 | crend() const noexcept |
439a0f5a BK |
3896 | { return const_reverse_iterator(this->begin()); } |
3897 | #endif | |
3898 | ||
725dc051 BK |
3899 | public: |
3900 | // Capacity: | |
284f19bf JQ |
3901 | /// Returns the number of characters in the string, not including any |
3902 | /// null-termination. | |
51122a42 | 3903 | size_type |
cea8c6de | 3904 | size() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3905 | { return _M_rep()->_M_length; } |
725dc051 | 3906 | |
284f19bf JQ |
3907 | /// Returns the number of characters in the string, not including any |
3908 | /// null-termination. | |
51122a42 | 3909 | size_type |
cea8c6de | 3910 | length() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3911 | { return _M_rep()->_M_length; } |
725dc051 | 3912 | |
79667f82 | 3913 | /// Returns the size() of the largest possible %string. |
51122a42 | 3914 | size_type |
cea8c6de | 3915 | max_size() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3916 | { return _Rep::_S_max_size; } |
725dc051 | 3917 | |
284f19bf JQ |
3918 | /** |
3919 | * @brief Resizes the %string to the specified number of characters. | |
93c66bc6 BK |
3920 | * @param __n Number of characters the %string should contain. |
3921 | * @param __c Character to fill any new elements. | |
284f19bf JQ |
3922 | * |
3923 | * This function will %resize the %string to the specified | |
3924 | * number of characters. If the number is smaller than the | |
3925 | * %string's current size the %string is truncated, otherwise | |
93c66bc6 | 3926 | * the %string is extended and new elements are %set to @a __c. |
284f19bf | 3927 | */ |
51122a42 | 3928 | void |
725dc051 BK |
3929 | resize(size_type __n, _CharT __c); |
3930 | ||
284f19bf JQ |
3931 | /** |
3932 | * @brief Resizes the %string to the specified number of characters. | |
93c66bc6 | 3933 | * @param __n Number of characters the %string should contain. |
284f19bf JQ |
3934 | * |
3935 | * This function will resize the %string to the specified length. If | |
3936 | * the new size is smaller than the %string's current size the %string | |
3937 | * is truncated, otherwise the %string is extended and new characters | |
3938 | * are default-constructed. For basic types such as char, this means | |
3939 | * setting them to 0. | |
3940 | */ | |
51122a42 | 3941 | void |
cc6e67d4 PC |
3942 | resize(size_type __n) |
3943 | { this->resize(__n, _CharT()); } | |
725dc051 | 3944 | |
734f5023 | 3945 | #if __cplusplus >= 201103L |
79667f82 PC |
3946 | /// A non-binding request to reduce capacity() to size(). |
3947 | void | |
d15ac9d9 | 3948 | shrink_to_fit() _GLIBCXX_NOEXCEPT |
79667f82 | 3949 | { |
99f04955 | 3950 | #if __cpp_exceptions |
8a752dfe FD |
3951 | if (capacity() > size()) |
3952 | { | |
99f04955 | 3953 | try |
8a752dfe | 3954 | { reserve(0); } |
99f04955 | 3955 | catch(...) |
8a752dfe FD |
3956 | { } |
3957 | } | |
561cfdec | 3958 | #endif |
79667f82 PC |
3959 | } |
3960 | #endif | |
3961 | ||
284f19bf JQ |
3962 | /** |
3963 | * Returns the total number of characters that the %string can hold | |
3964 | * before needing to allocate more memory. | |
3965 | */ | |
51122a42 | 3966 | size_type |
cea8c6de | 3967 | capacity() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 3968 | { return _M_rep()->_M_capacity; } |
725dc051 | 3969 | |
284f19bf JQ |
3970 | /** |
3971 | * @brief Attempt to preallocate enough memory for specified number of | |
3972 | * characters. | |
93c66bc6 BK |
3973 | * @param __res_arg Number of characters required. |
3974 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). | |
284f19bf JQ |
3975 | * |
3976 | * This function attempts to reserve enough memory for the | |
3977 | * %string to hold the specified number of characters. If the | |
3978 | * number requested is more than max_size(), length_error is | |
3979 | * thrown. | |
3980 | * | |
3981 | * The advantage of this function is that if optimal code is a | |
3982 | * necessity and the user can determine the string length that will be | |
3983 | * required, the user can reserve the memory in %advance, and thus | |
3984 | * prevent a possible reallocation of memory and copying of %string | |
3985 | * data. | |
3986 | */ | |
51122a42 | 3987 | void |
725dc051 BK |
3988 | reserve(size_type __res_arg = 0); |
3989 | ||
284f19bf JQ |
3990 | /** |
3991 | * Erases the string, making it empty. | |
3992 | */ | |
13190419 JW |
3993 | #if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 |
3994 | void | |
3995 | clear() _GLIBCXX_NOEXCEPT | |
3996 | { | |
3997 | if (_M_rep()->_M_is_shared()) | |
3998 | { | |
3999 | _M_rep()->_M_dispose(this->get_allocator()); | |
4000 | _M_data(_S_empty_rep()._M_refdata()); | |
4001 | } | |
4002 | else | |
4003 | _M_rep()->_M_set_length_and_sharable(0); | |
4004 | } | |
4005 | #else | |
d15ac9d9 | 4006 | // PR 56166: this should not throw. |
51122a42 | 4007 | void |
63ebd8f1 | 4008 | clear() |
cc6e67d4 | 4009 | { _M_mutate(0, this->size(), 0); } |
13190419 | 4010 | #endif |
725dc051 | 4011 | |
284f19bf | 4012 | /** |
2a60a9f6 BK |
4013 | * Returns true if the %string is empty. Equivalent to |
4014 | * <code>*this == ""</code>. | |
284f19bf | 4015 | */ |
d715f554 | 4016 | _GLIBCXX_NODISCARD bool |
cea8c6de | 4017 | empty() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 4018 | { return this->size() == 0; } |
725dc051 BK |
4019 | |
4020 | // Element access: | |
284f19bf JQ |
4021 | /** |
4022 | * @brief Subscript access to the data contained in the %string. | |
93c66bc6 | 4023 | * @param __pos The index of the character to access. |
284f19bf JQ |
4024 | * @return Read-only (constant) reference to the character. |
4025 | * | |
4026 | * This operator allows for easy, array-style, data access. | |
4027 | * Note that data access with this operator is unchecked and | |
4028 | * out_of_range lookups are not defined. (For checked lookups | |
4029 | * see at().) | |
4030 | */ | |
51122a42 | 4031 | const_reference |
d15ac9d9 | 4032 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT |
ed6814f7 | 4033 | { |
2f1e8e7c | 4034 | __glibcxx_assert(__pos <= size()); |
ed6814f7 | 4035 | return _M_data()[__pos]; |
285b36d6 | 4036 | } |
725dc051 | 4037 | |
284f19bf JQ |
4038 | /** |
4039 | * @brief Subscript access to the data contained in the %string. | |
93c66bc6 | 4040 | * @param __pos The index of the character to access. |
284f19bf JQ |
4041 | * @return Read/write reference to the character. |
4042 | * | |
4043 | * This operator allows for easy, array-style, data access. | |
4044 | * Note that data access with this operator is unchecked and | |
4045 | * out_of_range lookups are not defined. (For checked lookups | |
4046 | * see at().) Unshares the string. | |
4047 | */ | |
51122a42 PE |
4048 | reference |
4049 | operator[](size_type __pos) | |
4050 | { | |
56b5d3b4 PC |
4051 | // Allow pos == size() both in C++98 mode, as v3 extension, |
4052 | // and in C++11 mode. | |
2f1e8e7c | 4053 | __glibcxx_assert(__pos <= size()); |
56b5d3b4 PC |
4054 | // In pedantic mode be strict in C++98 mode. |
4055 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); | |
51122a42 PE |
4056 | _M_leak(); |
4057 | return _M_data()[__pos]; | |
725dc051 BK |
4058 | } |
4059 | ||
284f19bf JQ |
4060 | /** |
4061 | * @brief Provides access to the data contained in the %string. | |
93c66bc6 | 4062 | * @param __n The index of the character to access. |
284f19bf JQ |
4063 | * @return Read-only (const) reference to the character. |
4064 | * @throw std::out_of_range If @a n is an invalid index. | |
4065 | * | |
4066 | * This function provides for safer data access. The parameter is | |
4067 | * first checked that it is in the range of the string. The function | |
4068 | * throws out_of_range if the check fails. | |
4069 | */ | |
51122a42 | 4070 | const_reference |
725dc051 BK |
4071 | at(size_type __n) const |
4072 | { | |
e2c09482 | 4073 | if (__n >= this->size()) |
9779c871 PP |
4074 | __throw_out_of_range_fmt(__N("basic_string::at: __n " |
4075 | "(which is %zu) >= this->size() " | |
4076 | "(which is %zu)"), | |
4077 | __n, this->size()); | |
51122a42 | 4078 | return _M_data()[__n]; |
725dc051 BK |
4079 | } |
4080 | ||
f1e09f0d JW |
4081 | /** |
4082 | * @brief Provides access to the data contained in the %string. | |
4083 | * @param __n The index of the character to access. | |
4084 | * @return Read/write reference to the character. | |
4085 | * @throw std::out_of_range If @a n is an invalid index. | |
4086 | * | |
4087 | * This function provides for safer data access. The parameter is | |
4088 | * first checked that it is in the range of the string. The function | |
4089 | * throws out_of_range if the check fails. Success results in | |
4090 | * unsharing the string. | |
4091 | */ | |
4092 | reference | |
4093 | at(size_type __n) | |
4094 | { | |
4095 | if (__n >= size()) | |
9779c871 PP |
4096 | __throw_out_of_range_fmt(__N("basic_string::at: __n " |
4097 | "(which is %zu) >= this->size() " | |
4098 | "(which is %zu)"), | |
4099 | __n, this->size()); | |
f1e09f0d JW |
4100 | _M_leak(); |
4101 | return _M_data()[__n]; | |
4102 | } | |
4103 | ||
734f5023 | 4104 | #if __cplusplus >= 201103L |
1e2c0906 PC |
4105 | /** |
4106 | * Returns a read/write reference to the data at the first | |
4107 | * element of the %string. | |
4108 | */ | |
4109 | reference | |
4110 | front() | |
e25d2617 | 4111 | { |
2f1e8e7c | 4112 | __glibcxx_assert(!empty()); |
e25d2617 FD |
4113 | return operator[](0); |
4114 | } | |
1e2c0906 PC |
4115 | |
4116 | /** | |
4117 | * Returns a read-only (constant) reference to the data at the first | |
4118 | * element of the %string. | |
4119 | */ | |
4120 | const_reference | |
783aa06e | 4121 | front() const noexcept |
e25d2617 | 4122 | { |
2f1e8e7c | 4123 | __glibcxx_assert(!empty()); |
e25d2617 FD |
4124 | return operator[](0); |
4125 | } | |
1e2c0906 PC |
4126 | |
4127 | /** | |
4128 | * Returns a read/write reference to the data at the last | |
4129 | * element of the %string. | |
4130 | */ | |
4131 | reference | |
4132 | back() | |
e25d2617 | 4133 | { |
2f1e8e7c | 4134 | __glibcxx_assert(!empty()); |
e25d2617 FD |
4135 | return operator[](this->size() - 1); |
4136 | } | |
1e2c0906 PC |
4137 | |
4138 | /** | |
4139 | * Returns a read-only (constant) reference to the data at the | |
4140 | * last element of the %string. | |
4141 | */ | |
4142 | const_reference | |
783aa06e | 4143 | back() const noexcept |
e25d2617 | 4144 | { |
2f1e8e7c | 4145 | __glibcxx_assert(!empty()); |
e25d2617 FD |
4146 | return operator[](this->size() - 1); |
4147 | } | |
1e2c0906 PC |
4148 | #endif |
4149 | ||
725dc051 | 4150 | // Modifiers: |
284f19bf JQ |
4151 | /** |
4152 | * @brief Append a string to this string. | |
93c66bc6 | 4153 | * @param __str The string to append. |
284f19bf JQ |
4154 | * @return Reference to this string. |
4155 | */ | |
51122a42 | 4156 | basic_string& |
cc6e67d4 PC |
4157 | operator+=(const basic_string& __str) |
4158 | { return this->append(__str); } | |
725dc051 | 4159 | |
284f19bf JQ |
4160 | /** |
4161 | * @brief Append a C string. | |
93c66bc6 | 4162 | * @param __s The C string to append. |
284f19bf JQ |
4163 | * @return Reference to this string. |
4164 | */ | |
51122a42 | 4165 | basic_string& |
cc6e67d4 PC |
4166 | operator+=(const _CharT* __s) |
4167 | { return this->append(__s); } | |
725dc051 | 4168 | |
284f19bf JQ |
4169 | /** |
4170 | * @brief Append a character. | |
93c66bc6 | 4171 | * @param __c The character to append. |
284f19bf JQ |
4172 | * @return Reference to this string. |
4173 | */ | |
51122a42 | 4174 | basic_string& |
cc6e67d4 | 4175 | operator+=(_CharT __c) |
ec61e852 PC |
4176 | { |
4177 | this->push_back(__c); | |
4178 | return *this; | |
4179 | } | |
725dc051 | 4180 | |
734f5023 | 4181 | #if __cplusplus >= 201103L |
988499f4 JM |
4182 | /** |
4183 | * @brief Append an initializer_list of characters. | |
93c66bc6 | 4184 | * @param __l The initializer_list of characters to be appended. |
988499f4 JM |
4185 | * @return Reference to this string. |
4186 | */ | |
4187 | basic_string& | |
4188 | operator+=(initializer_list<_CharT> __l) | |
5cab7013 | 4189 | { return this->append(__l.begin(), __l.size()); } |
734f5023 | 4190 | #endif // C++11 |
988499f4 | 4191 | |
1a289fa3 | 4192 | #if __cplusplus >= 201703L |
92daf2de JW |
4193 | /** |
4194 | * @brief Append a string_view. | |
df66af3b | 4195 | * @param __svt The object convertible to string_view to be appended. |
92daf2de JW |
4196 | * @return Reference to this string. |
4197 | */ | |
df66af3b DK |
4198 | template<typename _Tp> |
4199 | _If_sv<_Tp, basic_string&> | |
4200 | operator+=(const _Tp& __svt) | |
4201 | { return this->append(__svt); } | |
92daf2de JW |
4202 | #endif // C++17 |
4203 | ||
284f19bf JQ |
4204 | /** |
4205 | * @brief Append a string to this string. | |
93c66bc6 | 4206 | * @param __str The string to append. |
284f19bf JQ |
4207 | * @return Reference to this string. |
4208 | */ | |
51122a42 | 4209 | basic_string& |
ab4375af | 4210 | append(const basic_string& __str); |
725dc051 | 4211 | |
284f19bf JQ |
4212 | /** |
4213 | * @brief Append a substring. | |
93c66bc6 BK |
4214 | * @param __str The string to append. |
4215 | * @param __pos Index of the first character of str to append. | |
4216 | * @param __n The number of characters to append. | |
284f19bf | 4217 | * @return Reference to this string. |
93c66bc6 | 4218 | * @throw std::out_of_range if @a __pos is not a valid index. |
284f19bf | 4219 | * |
93c66bc6 BK |
4220 | * This function appends @a __n characters from @a __str |
4221 | * starting at @a __pos to this string. If @a __n is is larger | |
4222 | * than the number of available characters in @a __str, the | |
4223 | * remainder of @a __str is appended. | |
284f19bf | 4224 | */ |
51122a42 | 4225 | basic_string& |
852ee53c | 4226 | append(const basic_string& __str, size_type __pos, size_type __n = npos); |
725dc051 | 4227 | |
284f19bf JQ |
4228 | /** |
4229 | * @brief Append a C substring. | |
93c66bc6 BK |
4230 | * @param __s The C string to append. |
4231 | * @param __n The number of characters to append. | |
284f19bf JQ |
4232 | * @return Reference to this string. |
4233 | */ | |
51122a42 | 4234 | basic_string& |
725dc051 BK |
4235 | append(const _CharT* __s, size_type __n); |
4236 | ||
284f19bf JQ |
4237 | /** |
4238 | * @brief Append a C string. | |
93c66bc6 | 4239 | * @param __s The C string to append. |
284f19bf JQ |
4240 | * @return Reference to this string. |
4241 | */ | |
51122a42 | 4242 | basic_string& |
725dc051 | 4243 | append(const _CharT* __s) |
ed6814f7 | 4244 | { |
285b36d6 | 4245 | __glibcxx_requires_string(__s); |
ed6814f7 | 4246 | return this->append(__s, traits_type::length(__s)); |
285b36d6 | 4247 | } |
725dc051 | 4248 | |
284f19bf JQ |
4249 | /** |
4250 | * @brief Append multiple characters. | |
93c66bc6 BK |
4251 | * @param __n The number of characters to append. |
4252 | * @param __c The character to use. | |
284f19bf JQ |
4253 | * @return Reference to this string. |
4254 | * | |
93c66bc6 | 4255 | * Appends __n copies of __c to this string. |
284f19bf | 4256 | */ |
51122a42 | 4257 | basic_string& |
ab4375af | 4258 | append(size_type __n, _CharT __c); |
725dc051 | 4259 | |
734f5023 | 4260 | #if __cplusplus >= 201103L |
988499f4 JM |
4261 | /** |
4262 | * @brief Append an initializer_list of characters. | |
93c66bc6 | 4263 | * @param __l The initializer_list of characters to append. |
988499f4 JM |
4264 | * @return Reference to this string. |
4265 | */ | |
4266 | basic_string& | |
4267 | append(initializer_list<_CharT> __l) | |
5cab7013 | 4268 | { return this->append(__l.begin(), __l.size()); } |
734f5023 | 4269 | #endif // C++11 |
988499f4 | 4270 | |
284f19bf JQ |
4271 | /** |
4272 | * @brief Append a range of characters. | |
93c66bc6 BK |
4273 | * @param __first Iterator referencing the first character to append. |
4274 | * @param __last Iterator marking the end of the range. | |
284f19bf JQ |
4275 | * @return Reference to this string. |
4276 | * | |
93c66bc6 | 4277 | * Appends characters in the range [__first,__last) to this string. |
284f19bf | 4278 | */ |
725dc051 | 4279 | template<class _InputIterator> |
51122a42 | 4280 | basic_string& |
725dc051 BK |
4281 | append(_InputIterator __first, _InputIterator __last) |
4282 | { return this->replace(_M_iend(), _M_iend(), __first, __last); } | |
4283 | ||
1a289fa3 | 4284 | #if __cplusplus >= 201703L |
92daf2de JW |
4285 | /** |
4286 | * @brief Append a string_view. | |
df66af3b | 4287 | * @param __svt The object convertible to string_view to be appended. |
92daf2de JW |
4288 | * @return Reference to this string. |
4289 | */ | |
df66af3b DK |
4290 | template<typename _Tp> |
4291 | _If_sv<_Tp, basic_string&> | |
4292 | append(const _Tp& __svt) | |
4293 | { | |
4294 | __sv_type __sv = __svt; | |
4295 | return this->append(__sv.data(), __sv.size()); | |
4296 | } | |
92daf2de JW |
4297 | |
4298 | /** | |
4299 | * @brief Append a range of characters from a string_view. | |
df66af3b DK |
4300 | * @param __svt The object convertible to string_view to be appended |
4301 | * from. | |
92daf2de JW |
4302 | * @param __pos The position in the string_view to append from. |
4303 | * @param __n The number of characters to append from the string_view. | |
4304 | * @return Reference to this string. | |
4305 | */ | |
df66af3b DK |
4306 | template<typename _Tp> |
4307 | _If_sv<_Tp, basic_string&> | |
92daf2de JW |
4308 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) |
4309 | { | |
4310 | __sv_type __sv = __svt; | |
4311 | return append(__sv.data() | |
fb8b3e29 JW |
4312 | + std::__sv_check(__sv.size(), __pos, "basic_string::append"), |
4313 | std::__sv_limit(__sv.size(), __pos, __n)); | |
92daf2de JW |
4314 | } |
4315 | #endif // C++17 | |
4316 | ||
284f19bf JQ |
4317 | /** |
4318 | * @brief Append a single character. | |
93c66bc6 | 4319 | * @param __c Character to append. |
284f19bf | 4320 | */ |
51122a42 | 4321 | void |
725dc051 | 4322 | push_back(_CharT __c) |
ec61e852 PC |
4323 | { |
4324 | const size_type __len = 1 + this->size(); | |
4325 | if (__len > this->capacity() || _M_rep()->_M_is_shared()) | |
4326 | this->reserve(__len); | |
4327 | traits_type::assign(_M_data()[this->size()], __c); | |
4328 | _M_rep()->_M_set_length_and_sharable(__len); | |
4329 | } | |
725dc051 | 4330 | |
284f19bf JQ |
4331 | /** |
4332 | * @brief Set value to contents of another string. | |
93c66bc6 | 4333 | * @param __str Source string to use. |
284f19bf JQ |
4334 | * @return Reference to this string. |
4335 | */ | |
51122a42 | 4336 | basic_string& |
5536e07d | 4337 | assign(const basic_string& __str); |
725dc051 | 4338 | |
734f5023 | 4339 | #if __cplusplus >= 201103L |
10154e0d PC |
4340 | /** |
4341 | * @brief Set value to contents of another string. | |
93c66bc6 | 4342 | * @param __str Source string to use. |
10154e0d PC |
4343 | * @return Reference to this string. |
4344 | * | |
93c66bc6 BK |
4345 | * This function sets this string to the exact contents of @a __str. |
4346 | * @a __str is a valid, but unspecified string. | |
10154e0d PC |
4347 | */ |
4348 | basic_string& | |
4349 | assign(basic_string&& __str) | |
30236791 | 4350 | noexcept(allocator_traits<_Alloc>::is_always_equal::value) |
10154e0d PC |
4351 | { |
4352 | this->swap(__str); | |
4353 | return *this; | |
4354 | } | |
734f5023 | 4355 | #endif // C++11 |
10154e0d | 4356 | |
284f19bf JQ |
4357 | /** |
4358 | * @brief Set value to a substring of a string. | |
93c66bc6 BK |
4359 | * @param __str The string to use. |
4360 | * @param __pos Index of the first character of str. | |
4361 | * @param __n Number of characters to use. | |
284f19bf JQ |
4362 | * @return Reference to this string. |
4363 | * @throw std::out_of_range if @a pos is not a valid index. | |
4364 | * | |
93c66bc6 BK |
4365 | * This function sets this string to the substring of @a __str |
4366 | * consisting of @a __n characters at @a __pos. If @a __n is | |
4367 | * is larger than the number of available characters in @a | |
4368 | * __str, the remainder of @a __str is used. | |
284f19bf | 4369 | */ |
51122a42 | 4370 | basic_string& |
852ee53c | 4371 | assign(const basic_string& __str, size_type __pos, size_type __n = npos) |
fefe561e PC |
4372 | { return this->assign(__str._M_data() |
4373 | + __str._M_check(__pos, "basic_string::assign"), | |
4374 | __str._M_limit(__pos, __n)); } | |
725dc051 | 4375 | |
284f19bf JQ |
4376 | /** |
4377 | * @brief Set value to a C substring. | |
93c66bc6 BK |
4378 | * @param __s The C string to use. |
4379 | * @param __n Number of characters to use. | |
284f19bf JQ |
4380 | * @return Reference to this string. |
4381 | * | |
93c66bc6 BK |
4382 | * This function sets the value of this string to the first @a __n |
4383 | * characters of @a __s. If @a __n is is larger than the number of | |
4384 | * available characters in @a __s, the remainder of @a __s is used. | |
284f19bf | 4385 | */ |
51122a42 | 4386 | basic_string& |
2d9d5235 | 4387 | assign(const _CharT* __s, size_type __n); |
725dc051 | 4388 | |
284f19bf JQ |
4389 | /** |
4390 | * @brief Set value to contents of a C string. | |
93c66bc6 | 4391 | * @param __s The C string to use. |
284f19bf JQ |
4392 | * @return Reference to this string. |
4393 | * | |
93c66bc6 BK |
4394 | * This function sets the value of this string to the value of @a __s. |
4395 | * The data is copied, so there is no dependence on @a __s once the | |
284f19bf JQ |
4396 | * function returns. |
4397 | */ | |
51122a42 | 4398 | basic_string& |
725dc051 | 4399 | assign(const _CharT* __s) |
ed6814f7 | 4400 | { |
285b36d6 | 4401 | __glibcxx_requires_string(__s); |
ed6814f7 | 4402 | return this->assign(__s, traits_type::length(__s)); |
285b36d6 | 4403 | } |
725dc051 | 4404 | |
284f19bf JQ |
4405 | /** |
4406 | * @brief Set value to multiple characters. | |
93c66bc6 BK |
4407 | * @param __n Length of the resulting string. |
4408 | * @param __c The character to use. | |
284f19bf JQ |
4409 | * @return Reference to this string. |
4410 | * | |
93c66bc6 BK |
4411 | * This function sets the value of this string to @a __n copies of |
4412 | * character @a __c. | |
284f19bf | 4413 | */ |
51122a42 | 4414 | basic_string& |
725dc051 | 4415 | assign(size_type __n, _CharT __c) |
7bb9b33b | 4416 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } |
725dc051 | 4417 | |
284f19bf JQ |
4418 | /** |
4419 | * @brief Set value to a range of characters. | |
93c66bc6 BK |
4420 | * @param __first Iterator referencing the first character to append. |
4421 | * @param __last Iterator marking the end of the range. | |
284f19bf JQ |
4422 | * @return Reference to this string. |
4423 | * | |
93c66bc6 | 4424 | * Sets value of string to characters in the range [__first,__last). |
284f19bf | 4425 | */ |
725dc051 | 4426 | template<class _InputIterator> |
51122a42 | 4427 | basic_string& |
725dc051 BK |
4428 | assign(_InputIterator __first, _InputIterator __last) |
4429 | { return this->replace(_M_ibegin(), _M_iend(), __first, __last); } | |
4430 | ||
734f5023 | 4431 | #if __cplusplus >= 201103L |
988499f4 JM |
4432 | /** |
4433 | * @brief Set value to an initializer_list of characters. | |
93c66bc6 | 4434 | * @param __l The initializer_list of characters to assign. |
988499f4 JM |
4435 | * @return Reference to this string. |
4436 | */ | |
4437 | basic_string& | |
4438 | assign(initializer_list<_CharT> __l) | |
5cab7013 | 4439 | { return this->assign(__l.begin(), __l.size()); } |
734f5023 | 4440 | #endif // C++11 |
988499f4 | 4441 | |
1a289fa3 | 4442 | #if __cplusplus >= 201703L |
92daf2de JW |
4443 | /** |
4444 | * @brief Set value from a string_view. | |
df66af3b | 4445 | * @param __svt The source object convertible to string_view. |
92daf2de JW |
4446 | * @return Reference to this string. |
4447 | */ | |
df66af3b DK |
4448 | template<typename _Tp> |
4449 | _If_sv<_Tp, basic_string&> | |
4450 | assign(const _Tp& __svt) | |
4451 | { | |
4452 | __sv_type __sv = __svt; | |
4453 | return this->assign(__sv.data(), __sv.size()); | |
4454 | } | |
92daf2de JW |
4455 | |
4456 | /** | |
4457 | * @brief Set value from a range of characters in a string_view. | |
df66af3b | 4458 | * @param __svt The source object convertible to string_view. |
92daf2de JW |
4459 | * @param __pos The position in the string_view to assign from. |
4460 | * @param __n The number of characters to assign. | |
4461 | * @return Reference to this string. | |
4462 | */ | |
df66af3b DK |
4463 | template<typename _Tp> |
4464 | _If_sv<_Tp, basic_string&> | |
4465 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
92daf2de JW |
4466 | { |
4467 | __sv_type __sv = __svt; | |
4468 | return assign(__sv.data() | |
fb8b3e29 JW |
4469 | + std::__sv_check(__sv.size(), __pos, "basic_string::assign"), |
4470 | std::__sv_limit(__sv.size(), __pos, __n)); | |
92daf2de JW |
4471 | } |
4472 | #endif // C++17 | |
4473 | ||
284f19bf JQ |
4474 | /** |
4475 | * @brief Insert multiple characters. | |
93c66bc6 BK |
4476 | * @param __p Iterator referencing location in string to insert at. |
4477 | * @param __n Number of characters to insert | |
4478 | * @param __c The character to insert. | |
284f19bf JQ |
4479 | * @throw std::length_error If new length exceeds @c max_size(). |
4480 | * | |
93c66bc6 BK |
4481 | * Inserts @a __n copies of character @a __c starting at the |
4482 | * position referenced by iterator @a __p. If adding | |
4483 | * characters causes the length to exceed max_size(), | |
4484 | * length_error is thrown. The value of the string doesn't | |
4485 | * change if an error is thrown. | |
284f19bf | 4486 | */ |
51122a42 | 4487 | void |
725dc051 BK |
4488 | insert(iterator __p, size_type __n, _CharT __c) |
4489 | { this->replace(__p, __p, __n, __c); } | |
4490 | ||
284f19bf JQ |
4491 | /** |
4492 | * @brief Insert a range of characters. | |
93c66bc6 BK |
4493 | * @param __p Iterator referencing location in string to insert at. |
4494 | * @param __beg Start of range. | |
4495 | * @param __end End of range. | |
284f19bf JQ |
4496 | * @throw std::length_error If new length exceeds @c max_size(). |
4497 | * | |
93c66bc6 BK |
4498 | * Inserts characters in range [__beg,__end). If adding |
4499 | * characters causes the length to exceed max_size(), | |
4500 | * length_error is thrown. The value of the string doesn't | |
4501 | * change if an error is thrown. | |
284f19bf | 4502 | */ |
725dc051 | 4503 | template<class _InputIterator> |
ec61e852 PC |
4504 | void |
4505 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) | |
725dc051 BK |
4506 | { this->replace(__p, __p, __beg, __end); } |
4507 | ||
734f5023 | 4508 | #if __cplusplus >= 201103L |
988499f4 JM |
4509 | /** |
4510 | * @brief Insert an initializer_list of characters. | |
93c66bc6 BK |
4511 | * @param __p Iterator referencing location in string to insert at. |
4512 | * @param __l The initializer_list of characters to insert. | |
988499f4 JM |
4513 | * @throw std::length_error If new length exceeds @c max_size(). |
4514 | */ | |
4515 | void | |
4516 | insert(iterator __p, initializer_list<_CharT> __l) | |
5cab7013 PC |
4517 | { |
4518 | _GLIBCXX_DEBUG_PEDASSERT(__p >= _M_ibegin() && __p <= _M_iend()); | |
4519 | this->insert(__p - _M_ibegin(), __l.begin(), __l.size()); | |
4520 | } | |
734f5023 | 4521 | #endif // C++11 |
988499f4 | 4522 | |
284f19bf JQ |
4523 | /** |
4524 | * @brief Insert value of a string. | |
8c6a71e4 | 4525 | * @param __pos1 Position in string to insert at. |
93c66bc6 | 4526 | * @param __str The string to insert. |
284f19bf JQ |
4527 | * @return Reference to this string. |
4528 | * @throw std::length_error If new length exceeds @c max_size(). | |
4529 | * | |
93c66bc6 BK |
4530 | * Inserts value of @a __str starting at @a __pos1. If adding |
4531 | * characters causes the length to exceed max_size(), | |
4532 | * length_error is thrown. The value of the string doesn't | |
4533 | * change if an error is thrown. | |
284f19bf | 4534 | */ |
51122a42 | 4535 | basic_string& |
725dc051 | 4536 | insert(size_type __pos1, const basic_string& __str) |
0e707673 | 4537 | { return this->insert(__pos1, __str, size_type(0), __str.size()); } |
725dc051 | 4538 | |
284f19bf JQ |
4539 | /** |
4540 | * @brief Insert a substring. | |
8c6a71e4 | 4541 | * @param __pos1 Position in string to insert at. |
93c66bc6 BK |
4542 | * @param __str The string to insert. |
4543 | * @param __pos2 Start of characters in str to insert. | |
4544 | * @param __n Number of characters to insert. | |
284f19bf JQ |
4545 | * @return Reference to this string. |
4546 | * @throw std::length_error If new length exceeds @c max_size(). | |
4547 | * @throw std::out_of_range If @a pos1 > size() or | |
93c66bc6 | 4548 | * @a __pos2 > @a str.size(). |
284f19bf | 4549 | * |
93c66bc6 BK |
4550 | * Starting at @a pos1, insert @a __n character of @a __str |
4551 | * beginning with @a __pos2. If adding characters causes the | |
4552 | * length to exceed max_size(), length_error is thrown. If @a | |
4553 | * __pos1 is beyond the end of this string or @a __pos2 is | |
4554 | * beyond the end of @a __str, out_of_range is thrown. The | |
4555 | * value of the string doesn't change if an error is thrown. | |
284f19bf | 4556 | */ |
51122a42 | 4557 | basic_string& |
725dc051 | 4558 | insert(size_type __pos1, const basic_string& __str, |
852ee53c | 4559 | size_type __pos2, size_type __n = npos) |
8865bf80 PC |
4560 | { return this->insert(__pos1, __str._M_data() |
4561 | + __str._M_check(__pos2, "basic_string::insert"), | |
4562 | __str._M_limit(__pos2, __n)); } | |
725dc051 | 4563 | |
284f19bf JQ |
4564 | /** |
4565 | * @brief Insert a C substring. | |
8c6a71e4 | 4566 | * @param __pos Position in string to insert at. |
93c66bc6 BK |
4567 | * @param __s The C string to insert. |
4568 | * @param __n The number of characters to insert. | |
284f19bf JQ |
4569 | * @return Reference to this string. |
4570 | * @throw std::length_error If new length exceeds @c max_size(). | |
93c66bc6 | 4571 | * @throw std::out_of_range If @a __pos is beyond the end of this |
ed6814f7 | 4572 | * string. |
284f19bf | 4573 | * |
93c66bc6 BK |
4574 | * Inserts the first @a __n characters of @a __s starting at @a |
4575 | * __pos. If adding characters causes the length to exceed | |
4576 | * max_size(), length_error is thrown. If @a __pos is beyond | |
4577 | * end(), out_of_range is thrown. The value of the string | |
4578 | * doesn't change if an error is thrown. | |
284f19bf | 4579 | */ |
51122a42 | 4580 | basic_string& |
2d9d5235 | 4581 | insert(size_type __pos, const _CharT* __s, size_type __n); |
725dc051 | 4582 | |
284f19bf JQ |
4583 | /** |
4584 | * @brief Insert a C string. | |
8c6a71e4 | 4585 | * @param __pos Position in string to insert at. |
93c66bc6 | 4586 | * @param __s The C string to insert. |
284f19bf JQ |
4587 | * @return Reference to this string. |
4588 | * @throw std::length_error If new length exceeds @c max_size(). | |
4589 | * @throw std::out_of_range If @a pos is beyond the end of this | |
4590 | * string. | |
4591 | * | |
93c66bc6 | 4592 | * Inserts the first @a n characters of @a __s starting at @a __pos. If |
284f19bf | 4593 | * adding characters causes the length to exceed max_size(), |
93c66bc6 | 4594 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is |
284f19bf JQ |
4595 | * thrown. The value of the string doesn't change if an error is |
4596 | * thrown. | |
4597 | */ | |
51122a42 | 4598 | basic_string& |
725dc051 | 4599 | insert(size_type __pos, const _CharT* __s) |
ed6814f7 | 4600 | { |
285b36d6 | 4601 | __glibcxx_requires_string(__s); |
ed6814f7 | 4602 | return this->insert(__pos, __s, traits_type::length(__s)); |
285b36d6 | 4603 | } |
725dc051 | 4604 | |
284f19bf JQ |
4605 | /** |
4606 | * @brief Insert multiple characters. | |
93c66bc6 BK |
4607 | * @param __pos Index in string to insert at. |
4608 | * @param __n Number of characters to insert | |
4609 | * @param __c The character to insert. | |
284f19bf JQ |
4610 | * @return Reference to this string. |
4611 | * @throw std::length_error If new length exceeds @c max_size(). | |
93c66bc6 | 4612 | * @throw std::out_of_range If @a __pos is beyond the end of this |
284f19bf JQ |
4613 | * string. |
4614 | * | |
93c66bc6 BK |
4615 | * Inserts @a __n copies of character @a __c starting at index |
4616 | * @a __pos. If adding characters causes the length to exceed | |
4617 | * max_size(), length_error is thrown. If @a __pos > length(), | |
4618 | * out_of_range is thrown. The value of the string doesn't | |
4619 | * change if an error is thrown. | |
284f19bf | 4620 | */ |
51122a42 | 4621 | basic_string& |
725dc051 | 4622 | insert(size_type __pos, size_type __n, _CharT __c) |
0e707673 PC |
4623 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), |
4624 | size_type(0), __n, __c); } | |
725dc051 | 4625 | |
284f19bf JQ |
4626 | /** |
4627 | * @brief Insert one character. | |
93c66bc6 BK |
4628 | * @param __p Iterator referencing position in string to insert at. |
4629 | * @param __c The character to insert. | |
284f19bf JQ |
4630 | * @return Iterator referencing newly inserted char. |
4631 | * @throw std::length_error If new length exceeds @c max_size(). | |
284f19bf | 4632 | * |
93c66bc6 BK |
4633 | * Inserts character @a __c at position referenced by @a __p. |
4634 | * If adding character causes the length to exceed max_size(), | |
4635 | * length_error is thrown. If @a __p is beyond end of string, | |
4636 | * out_of_range is thrown. The value of the string doesn't | |
4637 | * change if an error is thrown. | |
284f19bf | 4638 | */ |
51122a42 | 4639 | iterator |
3988d179 | 4640 | insert(iterator __p, _CharT __c) |
725dc051 | 4641 | { |
285b36d6 | 4642 | _GLIBCXX_DEBUG_PEDASSERT(__p >= _M_ibegin() && __p <= _M_iend()); |
7778fa6e | 4643 | const size_type __pos = __p - _M_ibegin(); |
0e707673 | 4644 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); |
51122a42 | 4645 | _M_rep()->_M_set_leaked(); |
3af22b23 | 4646 | return iterator(_M_data() + __pos); |
725dc051 BK |
4647 | } |
4648 | ||
1a289fa3 | 4649 | #if __cplusplus >= 201703L |
92daf2de JW |
4650 | /** |
4651 | * @brief Insert a string_view. | |
8c6a71e4 | 4652 | * @param __pos Position in string to insert at. |
df66af3b | 4653 | * @param __svt The object convertible to string_view to insert. |
92daf2de JW |
4654 | * @return Reference to this string. |
4655 | */ | |
df66af3b DK |
4656 | template<typename _Tp> |
4657 | _If_sv<_Tp, basic_string&> | |
4658 | insert(size_type __pos, const _Tp& __svt) | |
4659 | { | |
4660 | __sv_type __sv = __svt; | |
4661 | return this->insert(__pos, __sv.data(), __sv.size()); | |
4662 | } | |
92daf2de JW |
4663 | |
4664 | /** | |
4665 | * @brief Insert a string_view. | |
8c6a71e4 | 4666 | * @param __pos Position in string to insert at. |
df66af3b | 4667 | * @param __svt The object convertible to string_view to insert from. |
8c6a71e4 | 4668 | * @param __pos Position in string_view to insert |
92daf2de JW |
4669 | * from. |
4670 | * @param __n The number of characters to insert. | |
4671 | * @return Reference to this string. | |
4672 | */ | |
df66af3b DK |
4673 | template<typename _Tp> |
4674 | _If_sv<_Tp, basic_string&> | |
4675 | insert(size_type __pos1, const _Tp& __svt, | |
92daf2de JW |
4676 | size_type __pos2, size_type __n = npos) |
4677 | { | |
4678 | __sv_type __sv = __svt; | |
4679 | return this->replace(__pos1, size_type(0), __sv.data() | |
fb8b3e29 JW |
4680 | + std::__sv_check(__sv.size(), __pos2, "basic_string::insert"), |
4681 | std::__sv_limit(__sv.size(), __pos2, __n)); | |
92daf2de JW |
4682 | } |
4683 | #endif // C++17 | |
4684 | ||
284f19bf JQ |
4685 | /** |
4686 | * @brief Remove characters. | |
93c66bc6 BK |
4687 | * @param __pos Index of first character to remove (default 0). |
4688 | * @param __n Number of characters to remove (default remainder). | |
284f19bf JQ |
4689 | * @return Reference to this string. |
4690 | * @throw std::out_of_range If @a pos is beyond the end of this | |
4691 | * string. | |
4692 | * | |
93c66bc6 BK |
4693 | * Removes @a __n characters from this string starting at @a |
4694 | * __pos. The length of the string is reduced by @a __n. If | |
4695 | * there are < @a __n characters to remove, the remainder of | |
4696 | * the string is truncated. If @a __p is beyond end of string, | |
4697 | * out_of_range is thrown. The value of the string doesn't | |
4698 | * change if an error is thrown. | |
284f19bf | 4699 | */ |
51122a42 | 4700 | basic_string& |
725dc051 | 4701 | erase(size_type __pos = 0, size_type __n = npos) |
a6cb7068 PC |
4702 | { |
4703 | _M_mutate(_M_check(__pos, "basic_string::erase"), | |
4704 | _M_limit(__pos, __n), size_type(0)); | |
4705 | return *this; | |
4706 | } | |
725dc051 | 4707 | |
284f19bf JQ |
4708 | /** |
4709 | * @brief Remove one character. | |
93c66bc6 | 4710 | * @param __position Iterator referencing the character to remove. |
284f19bf | 4711 | * @return iterator referencing same location after removal. |
284f19bf | 4712 | * |
93c66bc6 | 4713 | * Removes the character at @a __position from this string. The value |
284f19bf JQ |
4714 | * of the string doesn't change if an error is thrown. |
4715 | */ | |
51122a42 | 4716 | iterator |
725dc051 BK |
4717 | erase(iterator __position) |
4718 | { | |
ed6814f7 | 4719 | _GLIBCXX_DEBUG_PEDASSERT(__position >= _M_ibegin() |
285b36d6 | 4720 | && __position < _M_iend()); |
0e707673 | 4721 | const size_type __pos = __position - _M_ibegin(); |
a6cb7068 | 4722 | _M_mutate(__pos, size_type(1), size_type(0)); |
51122a42 | 4723 | _M_rep()->_M_set_leaked(); |
3af22b23 | 4724 | return iterator(_M_data() + __pos); |
725dc051 BK |
4725 | } |
4726 | ||
284f19bf JQ |
4727 | /** |
4728 | * @brief Remove a range of characters. | |
93c66bc6 BK |
4729 | * @param __first Iterator referencing the first character to remove. |
4730 | * @param __last Iterator referencing the end of the range. | |
284f19bf | 4731 | * @return Iterator referencing location of first after removal. |
284f19bf JQ |
4732 | * |
4733 | * Removes the characters in the range [first,last) from this string. | |
30f315cd | 4734 | * The value of the string doesn't change if an error is thrown. |
284f19bf | 4735 | */ |
51122a42 | 4736 | iterator |
7309083f PC |
4737 | erase(iterator __first, iterator __last); |
4738 | ||
734f5023 | 4739 | #if __cplusplus >= 201103L |
f1e09f0d JW |
4740 | /** |
4741 | * @brief Remove the last character. | |
4742 | * | |
4743 | * The string must be non-empty. | |
4744 | */ | |
4745 | void | |
63ebd8f1 | 4746 | pop_back() // FIXME C++11: should be noexcept. |
e25d2617 | 4747 | { |
2f1e8e7c | 4748 | __glibcxx_assert(!empty()); |
e25d2617 FD |
4749 | erase(size() - 1, 1); |
4750 | } | |
734f5023 | 4751 | #endif // C++11 |
f1e09f0d | 4752 | |
284f19bf JQ |
4753 | /** |
4754 | * @brief Replace characters with value from another string. | |
93c66bc6 BK |
4755 | * @param __pos Index of first character to replace. |
4756 | * @param __n Number of characters to be replaced. | |
4757 | * @param __str String to insert. | |
284f19bf JQ |
4758 | * @return Reference to this string. |
4759 | * @throw std::out_of_range If @a pos is beyond the end of this | |
ed6814f7 | 4760 | * string. |
284f19bf JQ |
4761 | * @throw std::length_error If new length exceeds @c max_size(). |
4762 | * | |
93c66bc6 BK |
4763 | * Removes the characters in the range [__pos,__pos+__n) from |
4764 | * this string. In place, the value of @a __str is inserted. | |
4765 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
4766 | * If the length of the result exceeds max_size(), length_error | |
4767 | * is thrown. The value of the string doesn't change if an | |
4768 | * error is thrown. | |
284f19bf | 4769 | */ |
51122a42 | 4770 | basic_string& |
725dc051 | 4771 | replace(size_type __pos, size_type __n, const basic_string& __str) |
c68cd521 | 4772 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
725dc051 | 4773 | |
284f19bf JQ |
4774 | /** |
4775 | * @brief Replace characters with value from another string. | |
93c66bc6 BK |
4776 | * @param __pos1 Index of first character to replace. |
4777 | * @param __n1 Number of characters to be replaced. | |
4778 | * @param __str String to insert. | |
4779 | * @param __pos2 Index of first character of str to use. | |
4780 | * @param __n2 Number of characters from str to use. | |
284f19bf | 4781 | * @return Reference to this string. |
93c66bc6 BK |
4782 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > |
4783 | * __str.size(). | |
284f19bf JQ |
4784 | * @throw std::length_error If new length exceeds @c max_size(). |
4785 | * | |
93c66bc6 BK |
4786 | * Removes the characters in the range [__pos1,__pos1 + n) from this |
4787 | * string. In place, the value of @a __str is inserted. If @a __pos is | |
284f19bf JQ |
4788 | * beyond end of string, out_of_range is thrown. If the length of the |
4789 | * result exceeds max_size(), length_error is thrown. The value of the | |
4790 | * string doesn't change if an error is thrown. | |
4791 | */ | |
51122a42 | 4792 | basic_string& |
725dc051 | 4793 | replace(size_type __pos1, size_type __n1, const basic_string& __str, |
852ee53c | 4794 | size_type __pos2, size_type __n2 = npos) |
fefe561e PC |
4795 | { return this->replace(__pos1, __n1, __str._M_data() |
4796 | + __str._M_check(__pos2, "basic_string::replace"), | |
4797 | __str._M_limit(__pos2, __n2)); } | |
725dc051 | 4798 | |
284f19bf JQ |
4799 | /** |
4800 | * @brief Replace characters with value of a C substring. | |
93c66bc6 BK |
4801 | * @param __pos Index of first character to replace. |
4802 | * @param __n1 Number of characters to be replaced. | |
4803 | * @param __s C string to insert. | |
4804 | * @param __n2 Number of characters from @a s to use. | |
284f19bf JQ |
4805 | * @return Reference to this string. |
4806 | * @throw std::out_of_range If @a pos1 > size(). | |
4807 | * @throw std::length_error If new length exceeds @c max_size(). | |
4808 | * | |
93c66bc6 BK |
4809 | * Removes the characters in the range [__pos,__pos + __n1) |
4810 | * from this string. In place, the first @a __n2 characters of | |
4811 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If | |
4812 | * @a __pos is beyond end of string, out_of_range is thrown. If | |
4813 | * the length of result exceeds max_size(), length_error is | |
4814 | * thrown. The value of the string doesn't change if an error | |
4815 | * is thrown. | |
284f19bf | 4816 | */ |
51122a42 | 4817 | basic_string& |
725dc051 | 4818 | replace(size_type __pos, size_type __n1, const _CharT* __s, |
2d9d5235 | 4819 | size_type __n2); |
725dc051 | 4820 | |
284f19bf JQ |
4821 | /** |
4822 | * @brief Replace characters with value of a C string. | |
93c66bc6 BK |
4823 | * @param __pos Index of first character to replace. |
4824 | * @param __n1 Number of characters to be replaced. | |
4825 | * @param __s C string to insert. | |
284f19bf JQ |
4826 | * @return Reference to this string. |
4827 | * @throw std::out_of_range If @a pos > size(). | |
4828 | * @throw std::length_error If new length exceeds @c max_size(). | |
4829 | * | |
93c66bc6 BK |
4830 | * Removes the characters in the range [__pos,__pos + __n1) |
4831 | * from this string. In place, the characters of @a __s are | |
4832 | * inserted. If @a __pos is beyond end of string, out_of_range | |
4833 | * is thrown. If the length of result exceeds max_size(), | |
4834 | * length_error is thrown. The value of the string doesn't | |
4835 | * change if an error is thrown. | |
284f19bf | 4836 | */ |
51122a42 | 4837 | basic_string& |
725dc051 | 4838 | replace(size_type __pos, size_type __n1, const _CharT* __s) |
ed6814f7 | 4839 | { |
285b36d6 | 4840 | __glibcxx_requires_string(__s); |
ed6814f7 | 4841 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); |
285b36d6 | 4842 | } |
725dc051 | 4843 | |
284f19bf JQ |
4844 | /** |
4845 | * @brief Replace characters with multiple characters. | |
93c66bc6 BK |
4846 | * @param __pos Index of first character to replace. |
4847 | * @param __n1 Number of characters to be replaced. | |
4848 | * @param __n2 Number of characters to insert. | |
4849 | * @param __c Character to insert. | |
284f19bf | 4850 | * @return Reference to this string. |
93c66bc6 | 4851 | * @throw std::out_of_range If @a __pos > size(). |
284f19bf JQ |
4852 | * @throw std::length_error If new length exceeds @c max_size(). |
4853 | * | |
93c66bc6 BK |
4854 | * Removes the characters in the range [pos,pos + n1) from this |
4855 | * string. In place, @a __n2 copies of @a __c are inserted. | |
4856 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
4857 | * If the length of result exceeds max_size(), length_error is | |
4858 | * thrown. The value of the string doesn't change if an error | |
4859 | * is thrown. | |
284f19bf | 4860 | */ |
51122a42 | 4861 | basic_string& |
725dc051 | 4862 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) |
0e707673 PC |
4863 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), |
4864 | _M_limit(__pos, __n1), __n2, __c); } | |
725dc051 | 4865 | |
284f19bf JQ |
4866 | /** |
4867 | * @brief Replace range of characters with string. | |
93c66bc6 BK |
4868 | * @param __i1 Iterator referencing start of range to replace. |
4869 | * @param __i2 Iterator referencing end of range to replace. | |
4870 | * @param __str String value to insert. | |
284f19bf JQ |
4871 | * @return Reference to this string. |
4872 | * @throw std::length_error If new length exceeds @c max_size(). | |
4873 | * | |
93c66bc6 BK |
4874 | * Removes the characters in the range [__i1,__i2). In place, |
4875 | * the value of @a __str is inserted. If the length of result | |
4876 | * exceeds max_size(), length_error is thrown. The value of | |
4877 | * the string doesn't change if an error is thrown. | |
284f19bf | 4878 | */ |
51122a42 | 4879 | basic_string& |
725dc051 | 4880 | replace(iterator __i1, iterator __i2, const basic_string& __str) |
4d39d873 | 4881 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
725dc051 | 4882 | |
284f19bf JQ |
4883 | /** |
4884 | * @brief Replace range of characters with C substring. | |
93c66bc6 BK |
4885 | * @param __i1 Iterator referencing start of range to replace. |
4886 | * @param __i2 Iterator referencing end of range to replace. | |
4887 | * @param __s C string value to insert. | |
4888 | * @param __n Number of characters from s to insert. | |
284f19bf JQ |
4889 | * @return Reference to this string. |
4890 | * @throw std::length_error If new length exceeds @c max_size(). | |
4891 | * | |
93c66bc6 BK |
4892 | * Removes the characters in the range [__i1,__i2). In place, |
4893 | * the first @a __n characters of @a __s are inserted. If the | |
4894 | * length of result exceeds max_size(), length_error is thrown. | |
4895 | * The value of the string doesn't change if an error is | |
4896 | * thrown. | |
284f19bf | 4897 | */ |
51122a42 | 4898 | basic_string& |
4d39d873 PC |
4899 | replace(iterator __i1, iterator __i2, const _CharT* __s, size_type __n) |
4900 | { | |
4901 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
ed6814f7 | 4902 | && __i2 <= _M_iend()); |
4d39d873 PC |
4903 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, __s, __n); |
4904 | } | |
725dc051 | 4905 | |
284f19bf JQ |
4906 | /** |
4907 | * @brief Replace range of characters with C string. | |
93c66bc6 BK |
4908 | * @param __i1 Iterator referencing start of range to replace. |
4909 | * @param __i2 Iterator referencing end of range to replace. | |
4910 | * @param __s C string value to insert. | |
284f19bf JQ |
4911 | * @return Reference to this string. |
4912 | * @throw std::length_error If new length exceeds @c max_size(). | |
4913 | * | |
93c66bc6 BK |
4914 | * Removes the characters in the range [__i1,__i2). In place, |
4915 | * the characters of @a __s are inserted. If the length of | |
4916 | * result exceeds max_size(), length_error is thrown. The | |
4917 | * value of the string doesn't change if an error is thrown. | |
284f19bf | 4918 | */ |
51122a42 | 4919 | basic_string& |
725dc051 | 4920 | replace(iterator __i1, iterator __i2, const _CharT* __s) |
ed6814f7 | 4921 | { |
285b36d6 | 4922 | __glibcxx_requires_string(__s); |
ed6814f7 | 4923 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); |
285b36d6 | 4924 | } |
725dc051 | 4925 | |
284f19bf JQ |
4926 | /** |
4927 | * @brief Replace range of characters with multiple characters | |
93c66bc6 BK |
4928 | * @param __i1 Iterator referencing start of range to replace. |
4929 | * @param __i2 Iterator referencing end of range to replace. | |
4930 | * @param __n Number of characters to insert. | |
4931 | * @param __c Character to insert. | |
284f19bf JQ |
4932 | * @return Reference to this string. |
4933 | * @throw std::length_error If new length exceeds @c max_size(). | |
4934 | * | |
93c66bc6 BK |
4935 | * Removes the characters in the range [__i1,__i2). In place, |
4936 | * @a __n copies of @a __c are inserted. If the length of | |
4937 | * result exceeds max_size(), length_error is thrown. The | |
4938 | * value of the string doesn't change if an error is thrown. | |
284f19bf | 4939 | */ |
51122a42 | 4940 | basic_string& |
bdb0f0f5 | 4941 | replace(iterator __i1, iterator __i2, size_type __n, _CharT __c) |
ed6814f7 | 4942 | { |
285b36d6 BK |
4943 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 |
4944 | && __i2 <= _M_iend()); | |
ed6814f7 | 4945 | return _M_replace_aux(__i1 - _M_ibegin(), __i2 - __i1, __n, __c); |
285b36d6 | 4946 | } |
725dc051 | 4947 | |
284f19bf JQ |
4948 | /** |
4949 | * @brief Replace range of characters with range. | |
93c66bc6 BK |
4950 | * @param __i1 Iterator referencing start of range to replace. |
4951 | * @param __i2 Iterator referencing end of range to replace. | |
4952 | * @param __k1 Iterator referencing start of range to insert. | |
4953 | * @param __k2 Iterator referencing end of range to insert. | |
284f19bf JQ |
4954 | * @return Reference to this string. |
4955 | * @throw std::length_error If new length exceeds @c max_size(). | |
4956 | * | |
93c66bc6 BK |
4957 | * Removes the characters in the range [__i1,__i2). In place, |
4958 | * characters in the range [__k1,__k2) are inserted. If the | |
4959 | * length of result exceeds max_size(), length_error is thrown. | |
4960 | * The value of the string doesn't change if an error is | |
4961 | * thrown. | |
284f19bf | 4962 | */ |
725dc051 | 4963 | template<class _InputIterator> |
51122a42 | 4964 | basic_string& |
725dc051 BK |
4965 | replace(iterator __i1, iterator __i2, |
4966 | _InputIterator __k1, _InputIterator __k2) | |
ed6814f7 | 4967 | { |
285b36d6 BK |
4968 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 |
4969 | && __i2 <= _M_iend()); | |
4970 | __glibcxx_requires_valid_range(__k1, __k2); | |
c0736a9d | 4971 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
ed6814f7 | 4972 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); |
285b36d6 | 4973 | } |
725dc051 | 4974 | |
418bb880 PC |
4975 | // Specializations for the common case of pointer and iterator: |
4976 | // useful to avoid the overhead of temporary buffering in _M_replace. | |
51122a42 | 4977 | basic_string& |
43da93a7 PC |
4978 | replace(iterator __i1, iterator __i2, _CharT* __k1, _CharT* __k2) |
4979 | { | |
4980 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
4981 | && __i2 <= _M_iend()); | |
4982 | __glibcxx_requires_valid_range(__k1, __k2); | |
4983 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
4984 | __k1, __k2 - __k1); | |
4985 | } | |
418bb880 | 4986 | |
51122a42 | 4987 | basic_string& |
43da93a7 PC |
4988 | replace(iterator __i1, iterator __i2, |
4989 | const _CharT* __k1, const _CharT* __k2) | |
4990 | { | |
4991 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
4992 | && __i2 <= _M_iend()); | |
4993 | __glibcxx_requires_valid_range(__k1, __k2); | |
4994 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
4995 | __k1, __k2 - __k1); | |
4996 | } | |
418bb880 | 4997 | |
51122a42 | 4998 | basic_string& |
43da93a7 PC |
4999 | replace(iterator __i1, iterator __i2, iterator __k1, iterator __k2) |
5000 | { | |
5001 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
5002 | && __i2 <= _M_iend()); | |
5003 | __glibcxx_requires_valid_range(__k1, __k2); | |
5004 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
5005 | __k1.base(), __k2 - __k1); | |
5006 | } | |
418bb880 | 5007 | |
51122a42 | 5008 | basic_string& |
43da93a7 PC |
5009 | replace(iterator __i1, iterator __i2, |
5010 | const_iterator __k1, const_iterator __k2) | |
5011 | { | |
5012 | _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 | |
5013 | && __i2 <= _M_iend()); | |
5014 | __glibcxx_requires_valid_range(__k1, __k2); | |
5015 | return this->replace(__i1 - _M_ibegin(), __i2 - __i1, | |
5016 | __k1.base(), __k2 - __k1); | |
5017 | } | |
df66af3b | 5018 | |
734f5023 | 5019 | #if __cplusplus >= 201103L |
988499f4 JM |
5020 | /** |
5021 | * @brief Replace range of characters with initializer_list. | |
93c66bc6 BK |
5022 | * @param __i1 Iterator referencing start of range to replace. |
5023 | * @param __i2 Iterator referencing end of range to replace. | |
5024 | * @param __l The initializer_list of characters to insert. | |
988499f4 JM |
5025 | * @return Reference to this string. |
5026 | * @throw std::length_error If new length exceeds @c max_size(). | |
5027 | * | |
93c66bc6 BK |
5028 | * Removes the characters in the range [__i1,__i2). In place, |
5029 | * characters in the range [__k1,__k2) are inserted. If the | |
5030 | * length of result exceeds max_size(), length_error is thrown. | |
5031 | * The value of the string doesn't change if an error is | |
5032 | * thrown. | |
988499f4 | 5033 | */ |
927dc7c6 PC |
5034 | basic_string& replace(iterator __i1, iterator __i2, |
5035 | initializer_list<_CharT> __l) | |
988499f4 | 5036 | { return this->replace(__i1, __i2, __l.begin(), __l.end()); } |
734f5023 | 5037 | #endif // C++11 |
988499f4 | 5038 | |
1a289fa3 | 5039 | #if __cplusplus >= 201703L |
92daf2de JW |
5040 | /** |
5041 | * @brief Replace range of characters with string_view. | |
5042 | * @param __pos The position to replace at. | |
5043 | * @param __n The number of characters to replace. | |
df66af3b | 5044 | * @param __svt The object convertible to string_view to insert. |
92daf2de JW |
5045 | * @return Reference to this string. |
5046 | */ | |
df66af3b DK |
5047 | template<typename _Tp> |
5048 | _If_sv<_Tp, basic_string&> | |
5049 | replace(size_type __pos, size_type __n, const _Tp& __svt) | |
5050 | { | |
5051 | __sv_type __sv = __svt; | |
5052 | return this->replace(__pos, __n, __sv.data(), __sv.size()); | |
5053 | } | |
92daf2de JW |
5054 | |
5055 | /** | |
5056 | * @brief Replace range of characters with string_view. | |
5057 | * @param __pos1 The position to replace at. | |
5058 | * @param __n1 The number of characters to replace. | |
df66af3b | 5059 | * @param __svt The object convertible to string_view to insert from. |
92daf2de JW |
5060 | * @param __pos2 The position in the string_view to insert from. |
5061 | * @param __n2 The number of characters to insert. | |
5062 | * @return Reference to this string. | |
5063 | */ | |
df66af3b DK |
5064 | template<typename _Tp> |
5065 | _If_sv<_Tp, basic_string&> | |
5066 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, | |
92daf2de JW |
5067 | size_type __pos2, size_type __n2 = npos) |
5068 | { | |
5069 | __sv_type __sv = __svt; | |
df66af3b | 5070 | return this->replace(__pos1, __n1, |
fb8b3e29 JW |
5071 | __sv.data() |
5072 | + std::__sv_check(__sv.size(), __pos2, "basic_string::replace"), | |
5073 | std::__sv_limit(__sv.size(), __pos2, __n2)); | |
92daf2de JW |
5074 | } |
5075 | ||
5076 | /** | |
5077 | * @brief Replace range of characters with string_view. | |
5078 | * @param __i1 An iterator referencing the start position | |
5079 | to replace at. | |
5080 | * @param __i2 An iterator referencing the end position | |
5081 | for the replace. | |
df66af3b | 5082 | * @param __svt The object convertible to string_view to insert from. |
92daf2de JW |
5083 | * @return Reference to this string. |
5084 | */ | |
df66af3b DK |
5085 | template<typename _Tp> |
5086 | _If_sv<_Tp, basic_string&> | |
5087 | replace(const_iterator __i1, const_iterator __i2, const _Tp& __svt) | |
5088 | { | |
5089 | __sv_type __sv = __svt; | |
5090 | return this->replace(__i1 - begin(), __i2 - __i1, __sv); | |
5091 | } | |
92daf2de JW |
5092 | #endif // C++17 |
5093 | ||
725dc051 | 5094 | private: |
bdb0f0f5 DG |
5095 | template<class _Integer> |
5096 | basic_string& | |
ed6814f7 | 5097 | _M_replace_dispatch(iterator __i1, iterator __i2, _Integer __n, |
bdb0f0f5 | 5098 | _Integer __val, __true_type) |
7bb9b33b | 5099 | { return _M_replace_aux(__i1 - _M_ibegin(), __i2 - __i1, __n, __val); } |
bdb0f0f5 DG |
5100 | |
5101 | template<class _InputIterator> | |
5102 | basic_string& | |
5103 | _M_replace_dispatch(iterator __i1, iterator __i2, _InputIterator __k1, | |
fefe561e | 5104 | _InputIterator __k2, __false_type); |
bdb0f0f5 DG |
5105 | |
5106 | basic_string& | |
91eab378 | 5107 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, |
6bfad5e1 | 5108 | _CharT __c); |
bdb0f0f5 | 5109 | |
7bb9b33b PC |
5110 | basic_string& |
5111 | _M_replace_safe(size_type __pos1, size_type __n1, const _CharT* __s, | |
6bfad5e1 | 5112 | size_type __n2); |
725dc051 BK |
5113 | |
5114 | // _S_construct_aux is used to implement the 21.3.1 para 15 which | |
5115 | // requires special behaviour if _InIter is an integral type | |
08addde6 | 5116 | template<class _InIterator> |
725dc051 | 5117 | static _CharT* |
0e50667c PC |
5118 | _S_construct_aux(_InIterator __beg, _InIterator __end, |
5119 | const _Alloc& __a, __false_type) | |
725dc051 | 5120 | { |
08addde6 | 5121 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; |
725dc051 BK |
5122 | return _S_construct(__beg, __end, __a, _Tag()); |
5123 | } | |
51122a42 | 5124 | |
25959e29 PC |
5125 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
5126 | // 438. Ambiguity in the "do the right thing" clause | |
5127 | template<class _Integer> | |
725dc051 | 5128 | static _CharT* |
25959e29 | 5129 | _S_construct_aux(_Integer __beg, _Integer __end, |
0e50667c | 5130 | const _Alloc& __a, __true_type) |
df4d18ad PC |
5131 | { return _S_construct_aux_2(static_cast<size_type>(__beg), |
5132 | __end, __a); } | |
5133 | ||
5134 | static _CharT* | |
5135 | _S_construct_aux_2(size_type __req, _CharT __c, const _Alloc& __a) | |
5136 | { return _S_construct(__req, __c, __a); } | |
51122a42 | 5137 | |
08addde6 | 5138 | template<class _InIterator> |
725dc051 | 5139 | static _CharT* |
08addde6 | 5140 | _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a) |
725dc051 | 5141 | { |
c0736a9d | 5142 | typedef typename std::__is_integer<_InIterator>::__type _Integral; |
725dc051 BK |
5143 | return _S_construct_aux(__beg, __end, __a, _Integral()); |
5144 | } | |
5145 | ||
5146 | // For Input Iterators, used in istreambuf_iterators, etc. | |
08addde6 | 5147 | template<class _InIterator> |
725dc051 | 5148 | static _CharT* |
08addde6 | 5149 | _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a, |
725dc051 | 5150 | input_iterator_tag); |
51122a42 | 5151 | |
725dc051 BK |
5152 | // For forward_iterators up to random_access_iterators, used for |
5153 | // string::iterator, _CharT*, etc. | |
08addde6 | 5154 | template<class _FwdIterator> |
725dc051 | 5155 | static _CharT* |
08addde6 | 5156 | _S_construct(_FwdIterator __beg, _FwdIterator __end, const _Alloc& __a, |
725dc051 BK |
5157 | forward_iterator_tag); |
5158 | ||
51122a42 | 5159 | static _CharT* |
725dc051 BK |
5160 | _S_construct(size_type __req, _CharT __c, const _Alloc& __a); |
5161 | ||
5162 | public: | |
5163 | ||
284f19bf JQ |
5164 | /** |
5165 | * @brief Copy substring into C string. | |
93c66bc6 BK |
5166 | * @param __s C string to copy value into. |
5167 | * @param __n Number of characters to copy. | |
5168 | * @param __pos Index of first character to copy. | |
284f19bf | 5169 | * @return Number of characters actually copied |
93c66bc6 | 5170 | * @throw std::out_of_range If __pos > size(). |
284f19bf | 5171 | * |
93c66bc6 BK |
5172 | * Copies up to @a __n characters starting at @a __pos into the |
5173 | * C string @a __s. If @a __pos is %greater than size(), | |
5174 | * out_of_range is thrown. | |
284f19bf | 5175 | */ |
51122a42 | 5176 | size_type |
725dc051 BK |
5177 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; |
5178 | ||
284f19bf JQ |
5179 | /** |
5180 | * @brief Swap contents with another string. | |
93c66bc6 | 5181 | * @param __s String to swap with. |
284f19bf | 5182 | * |
93c66bc6 | 5183 | * Exchanges the contents of this string with that of @a __s in constant |
284f19bf JQ |
5184 | * time. |
5185 | */ | |
51122a42 | 5186 | void |
d8d9b83b JW |
5187 | swap(basic_string& __s) |
5188 | _GLIBCXX_NOEXCEPT_IF(allocator_traits<_Alloc>::is_always_equal::value); | |
725dc051 BK |
5189 | |
5190 | // String operations: | |
284f19bf JQ |
5191 | /** |
5192 | * @brief Return const pointer to null-terminated contents. | |
5193 | * | |
5194 | * This is a handle to internal data. Do not modify or dire things may | |
5195 | * happen. | |
5196 | */ | |
51122a42 | 5197 | const _CharT* |
cea8c6de | 5198 | c_str() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 5199 | { return _M_data(); } |
725dc051 | 5200 | |
284f19bf JQ |
5201 | /** |
5202 | * @brief Return const pointer to contents. | |
5203 | * | |
92d58dee JW |
5204 | * This is a pointer to internal data. It is undefined to modify |
5205 | * the contents through the returned pointer. To get a pointer that | |
5206 | * allows modifying the contents use @c &str[0] instead, | |
5207 | * (or in C++17 the non-const @c str.data() overload). | |
284f19bf | 5208 | */ |
51122a42 | 5209 | const _CharT* |
cea8c6de | 5210 | data() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 5211 | { return _M_data(); } |
725dc051 | 5212 | |
1a289fa3 | 5213 | #if __cplusplus >= 201703L |
92d58dee JW |
5214 | /** |
5215 | * @brief Return non-const pointer to contents. | |
5216 | * | |
5217 | * This is a pointer to the character sequence held by the string. | |
5218 | * Modifying the characters in the sequence is allowed. | |
5219 | */ | |
5220 | _CharT* | |
5221 | data() noexcept | |
525d67d4 JW |
5222 | { |
5223 | _M_leak(); | |
5224 | return _M_data(); | |
5225 | } | |
92d58dee JW |
5226 | #endif |
5227 | ||
284f19bf JQ |
5228 | /** |
5229 | * @brief Return copy of allocator used to construct this string. | |
5230 | */ | |
51122a42 | 5231 | allocator_type |
cea8c6de | 5232 | get_allocator() const _GLIBCXX_NOEXCEPT |
cc6e67d4 | 5233 | { return _M_dataplus; } |
725dc051 | 5234 | |
284f19bf JQ |
5235 | /** |
5236 | * @brief Find position of a C substring. | |
93c66bc6 BK |
5237 | * @param __s C string to locate. |
5238 | * @param __pos Index of character to search from. | |
5239 | * @param __n Number of characters from @a s to search for. | |
284f19bf JQ |
5240 | * @return Index of start of first occurrence. |
5241 | * | |
93c66bc6 BK |
5242 | * Starting from @a __pos, searches forward for the first @a |
5243 | * __n characters in @a __s within this string. If found, | |
5244 | * returns the index where it begins. If not found, returns | |
5245 | * npos. | |
284f19bf | 5246 | */ |
51122a42 | 5247 | size_type |
39a03251 JW |
5248 | find(const _CharT* __s, size_type __pos, size_type __n) const |
5249 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5250 | |
284f19bf JQ |
5251 | /** |
5252 | * @brief Find position of a string. | |
93c66bc6 BK |
5253 | * @param __str String to locate. |
5254 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5255 | * @return Index of start of first occurrence. |
5256 | * | |
93c66bc6 | 5257 | * Starting from @a __pos, searches forward for value of @a __str within |
284f19bf JQ |
5258 | * this string. If found, returns the index where it begins. If not |
5259 | * found, returns npos. | |
5260 | */ | |
51122a42 | 5261 | size_type |
725dc051 | 5262 | find(const basic_string& __str, size_type __pos = 0) const |
39a03251 | 5263 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5264 | { return this->find(__str.data(), __pos, __str.size()); } |
5265 | ||
284f19bf JQ |
5266 | /** |
5267 | * @brief Find position of a C string. | |
93c66bc6 BK |
5268 | * @param __s C string to locate. |
5269 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5270 | * @return Index of start of first occurrence. |
5271 | * | |
93c66bc6 BK |
5272 | * Starting from @a __pos, searches forward for the value of @a |
5273 | * __s within this string. If found, returns the index where | |
5274 | * it begins. If not found, returns npos. | |
284f19bf | 5275 | */ |
51122a42 | 5276 | size_type |
39a03251 | 5277 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
ed6814f7 | 5278 | { |
285b36d6 | 5279 | __glibcxx_requires_string(__s); |
ed6814f7 | 5280 | return this->find(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5281 | } |
725dc051 | 5282 | |
284f19bf JQ |
5283 | /** |
5284 | * @brief Find position of a character. | |
93c66bc6 BK |
5285 | * @param __c Character to locate. |
5286 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5287 | * @return Index of first occurrence. |
5288 | * | |
93c66bc6 BK |
5289 | * Starting from @a __pos, searches forward for @a __c within |
5290 | * this string. If found, returns the index where it was | |
5291 | * found. If not found, returns npos. | |
284f19bf | 5292 | */ |
51122a42 | 5293 | size_type |
cea8c6de | 5294 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5295 | |
1a289fa3 | 5296 | #if __cplusplus >= 201703L |
92daf2de JW |
5297 | /** |
5298 | * @brief Find position of a string_view. | |
df66af3b | 5299 | * @param __svt The object convertible to string_view to locate. |
92daf2de JW |
5300 | * @param __pos Index of character to search from (default 0). |
5301 | * @return Index of start of first occurrence. | |
5302 | */ | |
df66af3b DK |
5303 | template<typename _Tp> |
5304 | _If_sv<_Tp, size_type> | |
5305 | find(const _Tp& __svt, size_type __pos = 0) const | |
5306 | noexcept(is_same<_Tp, __sv_type>::value) | |
5307 | { | |
5308 | __sv_type __sv = __svt; | |
5309 | return this->find(__sv.data(), __pos, __sv.size()); | |
5310 | } | |
92daf2de JW |
5311 | #endif // C++17 |
5312 | ||
284f19bf JQ |
5313 | /** |
5314 | * @brief Find last position of a string. | |
93c66bc6 BK |
5315 | * @param __str String to locate. |
5316 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5317 | * @return Index of start of last occurrence. |
5318 | * | |
93c66bc6 BK |
5319 | * Starting from @a __pos, searches backward for value of @a |
5320 | * __str within this string. If found, returns the index where | |
5321 | * it begins. If not found, returns npos. | |
284f19bf | 5322 | */ |
51122a42 | 5323 | size_type |
725dc051 | 5324 | rfind(const basic_string& __str, size_type __pos = npos) const |
39a03251 | 5325 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5326 | { return this->rfind(__str.data(), __pos, __str.size()); } |
5327 | ||
284f19bf JQ |
5328 | /** |
5329 | * @brief Find last position of a C substring. | |
93c66bc6 BK |
5330 | * @param __s C string to locate. |
5331 | * @param __pos Index of character to search back from. | |
5332 | * @param __n Number of characters from s to search for. | |
284f19bf JQ |
5333 | * @return Index of start of last occurrence. |
5334 | * | |
93c66bc6 BK |
5335 | * Starting from @a __pos, searches backward for the first @a |
5336 | * __n characters in @a __s within this string. If found, | |
5337 | * returns the index where it begins. If not found, returns | |
5338 | * npos. | |
284f19bf | 5339 | */ |
51122a42 | 5340 | size_type |
39a03251 JW |
5341 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
5342 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5343 | |
284f19bf JQ |
5344 | /** |
5345 | * @brief Find last position of a C string. | |
93c66bc6 BK |
5346 | * @param __s C string to locate. |
5347 | * @param __pos Index of character to start search at (default end). | |
284f19bf JQ |
5348 | * @return Index of start of last occurrence. |
5349 | * | |
93c66bc6 BK |
5350 | * Starting from @a __pos, searches backward for the value of |
5351 | * @a __s within this string. If found, returns the index | |
5352 | * where it begins. If not found, returns npos. | |
284f19bf | 5353 | */ |
51122a42 | 5354 | size_type |
39a03251 | 5355 | rfind(const _CharT* __s, size_type __pos = npos) const _GLIBCXX_NOEXCEPT |
ed6814f7 | 5356 | { |
285b36d6 | 5357 | __glibcxx_requires_string(__s); |
ed6814f7 | 5358 | return this->rfind(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5359 | } |
725dc051 | 5360 | |
284f19bf JQ |
5361 | /** |
5362 | * @brief Find last position of a character. | |
93c66bc6 BK |
5363 | * @param __c Character to locate. |
5364 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5365 | * @return Index of last occurrence. |
5366 | * | |
93c66bc6 BK |
5367 | * Starting from @a __pos, searches backward for @a __c within |
5368 | * this string. If found, returns the index where it was | |
5369 | * found. If not found, returns npos. | |
284f19bf | 5370 | */ |
51122a42 | 5371 | size_type |
cea8c6de | 5372 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5373 | |
1a289fa3 | 5374 | #if __cplusplus >= 201703L |
92daf2de JW |
5375 | /** |
5376 | * @brief Find last position of a string_view. | |
df66af3b | 5377 | * @param __svt The object convertible to string_view to locate. |
92daf2de JW |
5378 | * @param __pos Index of character to search back from (default end). |
5379 | * @return Index of start of last occurrence. | |
5380 | */ | |
df66af3b DK |
5381 | template<typename _Tp> |
5382 | _If_sv<_Tp, size_type> | |
5383 | rfind(const _Tp& __svt, size_type __pos = npos) const | |
5384 | noexcept(is_same<_Tp, __sv_type>::value) | |
5385 | { | |
5386 | __sv_type __sv = __svt; | |
5387 | return this->rfind(__sv.data(), __pos, __sv.size()); | |
5388 | } | |
92daf2de JW |
5389 | #endif // C++17 |
5390 | ||
284f19bf JQ |
5391 | /** |
5392 | * @brief Find position of a character of string. | |
93c66bc6 BK |
5393 | * @param __str String containing characters to locate. |
5394 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5395 | * @return Index of first occurrence. |
5396 | * | |
93c66bc6 BK |
5397 | * Starting from @a __pos, searches forward for one of the |
5398 | * characters of @a __str within this string. If found, | |
5399 | * returns the index where it was found. If not found, returns | |
5400 | * npos. | |
284f19bf | 5401 | */ |
51122a42 | 5402 | size_type |
725dc051 | 5403 | find_first_of(const basic_string& __str, size_type __pos = 0) const |
39a03251 | 5404 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5405 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
5406 | ||
284f19bf JQ |
5407 | /** |
5408 | * @brief Find position of a character of C substring. | |
93c66bc6 BK |
5409 | * @param __s String containing characters to locate. |
5410 | * @param __pos Index of character to search from. | |
5411 | * @param __n Number of characters from s to search for. | |
284f19bf JQ |
5412 | * @return Index of first occurrence. |
5413 | * | |
93c66bc6 BK |
5414 | * Starting from @a __pos, searches forward for one of the |
5415 | * first @a __n characters of @a __s within this string. If | |
5416 | * found, returns the index where it was found. If not found, | |
5417 | * returns npos. | |
284f19bf | 5418 | */ |
51122a42 | 5419 | size_type |
39a03251 JW |
5420 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
5421 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5422 | |
284f19bf JQ |
5423 | /** |
5424 | * @brief Find position of a character of C string. | |
93c66bc6 BK |
5425 | * @param __s String containing characters to locate. |
5426 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5427 | * @return Index of first occurrence. |
5428 | * | |
93c66bc6 BK |
5429 | * Starting from @a __pos, searches forward for one of the |
5430 | * characters of @a __s within this string. If found, returns | |
5431 | * the index where it was found. If not found, returns npos. | |
284f19bf | 5432 | */ |
51122a42 | 5433 | size_type |
725dc051 | 5434 | find_first_of(const _CharT* __s, size_type __pos = 0) const |
39a03251 | 5435 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5436 | { |
285b36d6 | 5437 | __glibcxx_requires_string(__s); |
ed6814f7 | 5438 | return this->find_first_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5439 | } |
725dc051 | 5440 | |
284f19bf JQ |
5441 | /** |
5442 | * @brief Find position of a character. | |
93c66bc6 BK |
5443 | * @param __c Character to locate. |
5444 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5445 | * @return Index of first occurrence. |
5446 | * | |
93c66bc6 BK |
5447 | * Starting from @a __pos, searches forward for the character |
5448 | * @a __c within this string. If found, returns the index | |
5449 | * where it was found. If not found, returns npos. | |
284f19bf | 5450 | * |
93c66bc6 | 5451 | * Note: equivalent to find(__c, __pos). |
284f19bf | 5452 | */ |
51122a42 | 5453 | size_type |
cea8c6de | 5454 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
725dc051 BK |
5455 | { return this->find(__c, __pos); } |
5456 | ||
1a289fa3 | 5457 | #if __cplusplus >= 201703L |
92daf2de JW |
5458 | /** |
5459 | * @brief Find position of a character of a string_view. | |
df66af3b DK |
5460 | * @param __svt An object convertible to string_view containing |
5461 | * characters to locate. | |
92daf2de JW |
5462 | * @param __pos Index of character to search from (default 0). |
5463 | * @return Index of first occurrence. | |
5464 | */ | |
df66af3b DK |
5465 | template<typename _Tp> |
5466 | _If_sv<_Tp, size_type> | |
5467 | find_first_of(const _Tp& __svt, size_type __pos = 0) const | |
5468 | noexcept(is_same<_Tp, __sv_type>::value) | |
5469 | { | |
5470 | __sv_type __sv = __svt; | |
5471 | return this->find_first_of(__sv.data(), __pos, __sv.size()); | |
5472 | } | |
92daf2de JW |
5473 | #endif // C++17 |
5474 | ||
284f19bf JQ |
5475 | /** |
5476 | * @brief Find last position of a character of string. | |
93c66bc6 BK |
5477 | * @param __str String containing characters to locate. |
5478 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5479 | * @return Index of last occurrence. |
5480 | * | |
93c66bc6 BK |
5481 | * Starting from @a __pos, searches backward for one of the |
5482 | * characters of @a __str within this string. If found, | |
5483 | * returns the index where it was found. If not found, returns | |
5484 | * npos. | |
284f19bf | 5485 | */ |
51122a42 | 5486 | size_type |
725dc051 | 5487 | find_last_of(const basic_string& __str, size_type __pos = npos) const |
39a03251 | 5488 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5489 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
5490 | ||
284f19bf JQ |
5491 | /** |
5492 | * @brief Find last position of a character of C substring. | |
93c66bc6 BK |
5493 | * @param __s C string containing characters to locate. |
5494 | * @param __pos Index of character to search back from. | |
5495 | * @param __n Number of characters from s to search for. | |
284f19bf JQ |
5496 | * @return Index of last occurrence. |
5497 | * | |
93c66bc6 BK |
5498 | * Starting from @a __pos, searches backward for one of the |
5499 | * first @a __n characters of @a __s within this string. If | |
5500 | * found, returns the index where it was found. If not found, | |
5501 | * returns npos. | |
284f19bf | 5502 | */ |
51122a42 | 5503 | size_type |
39a03251 JW |
5504 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
5505 | _GLIBCXX_NOEXCEPT; | |
725dc051 | 5506 | |
284f19bf JQ |
5507 | /** |
5508 | * @brief Find last position of a character of C string. | |
93c66bc6 BK |
5509 | * @param __s C string containing characters to locate. |
5510 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5511 | * @return Index of last occurrence. |
5512 | * | |
93c66bc6 BK |
5513 | * Starting from @a __pos, searches backward for one of the |
5514 | * characters of @a __s within this string. If found, returns | |
5515 | * the index where it was found. If not found, returns npos. | |
284f19bf | 5516 | */ |
51122a42 | 5517 | size_type |
725dc051 | 5518 | find_last_of(const _CharT* __s, size_type __pos = npos) const |
39a03251 | 5519 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5520 | { |
285b36d6 | 5521 | __glibcxx_requires_string(__s); |
ed6814f7 | 5522 | return this->find_last_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5523 | } |
725dc051 | 5524 | |
284f19bf JQ |
5525 | /** |
5526 | * @brief Find last position of a character. | |
93c66bc6 BK |
5527 | * @param __c Character to locate. |
5528 | * @param __pos Index of character to search back from (default end). | |
284f19bf JQ |
5529 | * @return Index of last occurrence. |
5530 | * | |
93c66bc6 BK |
5531 | * Starting from @a __pos, searches backward for @a __c within |
5532 | * this string. If found, returns the index where it was | |
5533 | * found. If not found, returns npos. | |
284f19bf | 5534 | * |
93c66bc6 | 5535 | * Note: equivalent to rfind(__c, __pos). |
284f19bf | 5536 | */ |
51122a42 | 5537 | size_type |
cea8c6de | 5538 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT |
725dc051 BK |
5539 | { return this->rfind(__c, __pos); } |
5540 | ||
1a289fa3 | 5541 | #if __cplusplus >= 201703L |
92daf2de JW |
5542 | /** |
5543 | * @brief Find last position of a character of string. | |
df66af3b DK |
5544 | * @param __svt An object convertible to string_view containing |
5545 | * characters to locate. | |
92daf2de JW |
5546 | * @param __pos Index of character to search back from (default end). |
5547 | * @return Index of last occurrence. | |
5548 | */ | |
df66af3b DK |
5549 | template<typename _Tp> |
5550 | _If_sv<_Tp, size_type> | |
5551 | find_last_of(const _Tp& __svt, size_type __pos = npos) const | |
5552 | noexcept(is_same<_Tp, __sv_type>::value) | |
5553 | { | |
5554 | __sv_type __sv = __svt; | |
5555 | return this->find_last_of(__sv.data(), __pos, __sv.size()); | |
5556 | } | |
92daf2de JW |
5557 | #endif // C++17 |
5558 | ||
284f19bf JQ |
5559 | /** |
5560 | * @brief Find position of a character not in string. | |
93c66bc6 BK |
5561 | * @param __str String containing characters to avoid. |
5562 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5563 | * @return Index of first occurrence. |
5564 | * | |
93c66bc6 BK |
5565 | * Starting from @a __pos, searches forward for a character not contained |
5566 | * in @a __str within this string. If found, returns the index where it | |
284f19bf JQ |
5567 | * was found. If not found, returns npos. |
5568 | */ | |
51122a42 | 5569 | size_type |
725dc051 | 5570 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const |
39a03251 | 5571 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5572 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
5573 | ||
284f19bf JQ |
5574 | /** |
5575 | * @brief Find position of a character not in C substring. | |
93c66bc6 BK |
5576 | * @param __s C string containing characters to avoid. |
5577 | * @param __pos Index of character to search from. | |
5578 | * @param __n Number of characters from __s to consider. | |
284f19bf JQ |
5579 | * @return Index of first occurrence. |
5580 | * | |
93c66bc6 BK |
5581 | * Starting from @a __pos, searches forward for a character not |
5582 | * contained in the first @a __n characters of @a __s within | |
5583 | * this string. If found, returns the index where it was | |
5584 | * found. If not found, returns npos. | |
284f19bf | 5585 | */ |
51122a42 PE |
5586 | size_type |
5587 | find_first_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 5588 | size_type __n) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5589 | |
284f19bf JQ |
5590 | /** |
5591 | * @brief Find position of a character not in C string. | |
93c66bc6 BK |
5592 | * @param __s C string containing characters to avoid. |
5593 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5594 | * @return Index of first occurrence. |
5595 | * | |
93c66bc6 BK |
5596 | * Starting from @a __pos, searches forward for a character not |
5597 | * contained in @a __s within this string. If found, returns | |
5598 | * the index where it was found. If not found, returns npos. | |
284f19bf | 5599 | */ |
51122a42 | 5600 | size_type |
725dc051 | 5601 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const |
39a03251 | 5602 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5603 | { |
285b36d6 | 5604 | __glibcxx_requires_string(__s); |
ed6814f7 | 5605 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5606 | } |
725dc051 | 5607 | |
284f19bf JQ |
5608 | /** |
5609 | * @brief Find position of a different character. | |
93c66bc6 BK |
5610 | * @param __c Character to avoid. |
5611 | * @param __pos Index of character to search from (default 0). | |
284f19bf JQ |
5612 | * @return Index of first occurrence. |
5613 | * | |
93c66bc6 BK |
5614 | * Starting from @a __pos, searches forward for a character |
5615 | * other than @a __c within this string. If found, returns the | |
5616 | * index where it was found. If not found, returns npos. | |
284f19bf | 5617 | */ |
51122a42 | 5618 | size_type |
cea8c6de | 5619 | find_first_not_of(_CharT __c, size_type __pos = 0) const |
39a03251 | 5620 | _GLIBCXX_NOEXCEPT; |
725dc051 | 5621 | |
1a289fa3 | 5622 | #if __cplusplus >= 201703L |
92daf2de JW |
5623 | /** |
5624 | * @brief Find position of a character not in a string_view. | |
df66af3b DK |
5625 | * @param __svt An object convertible to string_view containing |
5626 | * characters to avoid. | |
92daf2de JW |
5627 | * @param __pos Index of character to search from (default 0). |
5628 | * @return Index of first occurrence. | |
5629 | */ | |
df66af3b DK |
5630 | template<typename _Tp> |
5631 | _If_sv<_Tp, size_type> | |
5632 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const | |
5633 | noexcept(is_same<_Tp, __sv_type>::value) | |
5634 | { | |
5635 | __sv_type __sv = __svt; | |
5636 | return this->find_first_not_of(__sv.data(), __pos, __sv.size()); | |
5637 | } | |
92daf2de JW |
5638 | #endif // C++17 |
5639 | ||
284f19bf JQ |
5640 | /** |
5641 | * @brief Find last position of a character not in string. | |
93c66bc6 BK |
5642 | * @param __str String containing characters to avoid. |
5643 | * @param __pos Index of character to search back from (default end). | |
ee5ca789 | 5644 | * @return Index of last occurrence. |
284f19bf | 5645 | * |
93c66bc6 BK |
5646 | * Starting from @a __pos, searches backward for a character |
5647 | * not contained in @a __str within this string. If found, | |
5648 | * returns the index where it was found. If not found, returns | |
5649 | * npos. | |
284f19bf | 5650 | */ |
51122a42 | 5651 | size_type |
725dc051 | 5652 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const |
39a03251 | 5653 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
5654 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
5655 | ||
284f19bf JQ |
5656 | /** |
5657 | * @brief Find last position of a character not in C substring. | |
93c66bc6 BK |
5658 | * @param __s C string containing characters to avoid. |
5659 | * @param __pos Index of character to search back from. | |
5660 | * @param __n Number of characters from s to consider. | |
ee5ca789 | 5661 | * @return Index of last occurrence. |
284f19bf | 5662 | * |
93c66bc6 BK |
5663 | * Starting from @a __pos, searches backward for a character not |
5664 | * contained in the first @a __n characters of @a __s within this string. | |
284f19bf JQ |
5665 | * If found, returns the index where it was found. If not found, |
5666 | * returns npos. | |
5667 | */ | |
51122a42 PE |
5668 | size_type |
5669 | find_last_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 5670 | size_type __n) const _GLIBCXX_NOEXCEPT; |
284f19bf | 5671 | /** |
ee5ca789 | 5672 | * @brief Find last position of a character not in C string. |
93c66bc6 BK |
5673 | * @param __s C string containing characters to avoid. |
5674 | * @param __pos Index of character to search back from (default end). | |
ee5ca789 | 5675 | * @return Index of last occurrence. |
284f19bf | 5676 | * |
93c66bc6 BK |
5677 | * Starting from @a __pos, searches backward for a character |
5678 | * not contained in @a __s within this string. If found, | |
5679 | * returns the index where it was found. If not found, returns | |
5680 | * npos. | |
284f19bf | 5681 | */ |
51122a42 | 5682 | size_type |
725dc051 | 5683 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const |
39a03251 | 5684 | _GLIBCXX_NOEXCEPT |
ed6814f7 | 5685 | { |
285b36d6 | 5686 | __glibcxx_requires_string(__s); |
ed6814f7 | 5687 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); |
285b36d6 | 5688 | } |
725dc051 | 5689 | |
284f19bf JQ |
5690 | /** |
5691 | * @brief Find last position of a different character. | |
93c66bc6 BK |
5692 | * @param __c Character to avoid. |
5693 | * @param __pos Index of character to search back from (default end). | |
ee5ca789 | 5694 | * @return Index of last occurrence. |
284f19bf | 5695 | * |
93c66bc6 BK |
5696 | * Starting from @a __pos, searches backward for a character other than |
5697 | * @a __c within this string. If found, returns the index where it was | |
284f19bf JQ |
5698 | * found. If not found, returns npos. |
5699 | */ | |
51122a42 | 5700 | size_type |
cea8c6de | 5701 | find_last_not_of(_CharT __c, size_type __pos = npos) const |
39a03251 | 5702 | _GLIBCXX_NOEXCEPT; |
725dc051 | 5703 | |
1a289fa3 | 5704 | #if __cplusplus >= 201703L |
92daf2de JW |
5705 | /** |
5706 | * @brief Find last position of a character not in a string_view. | |
df66af3b DK |
5707 | * @param __svt An object convertible to string_view containing |
5708 | * characters to avoid. | |
92daf2de JW |
5709 | * @param __pos Index of character to search back from (default end). |
5710 | * @return Index of last occurrence. | |
5711 | */ | |
df66af3b DK |
5712 | template<typename _Tp> |
5713 | _If_sv<_Tp, size_type> | |
5714 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const | |
5715 | noexcept(is_same<_Tp, __sv_type>::value) | |
5716 | { | |
5717 | __sv_type __sv = __svt; | |
5718 | return this->find_last_not_of(__sv.data(), __pos, __sv.size()); | |
5719 | } | |
92daf2de JW |
5720 | #endif // C++17 |
5721 | ||
284f19bf JQ |
5722 | /** |
5723 | * @brief Get a substring. | |
93c66bc6 BK |
5724 | * @param __pos Index of first character (default 0). |
5725 | * @param __n Number of characters in substring (default remainder). | |
284f19bf | 5726 | * @return The new string. |
93c66bc6 | 5727 | * @throw std::out_of_range If __pos > size(). |
284f19bf | 5728 | * |
93c66bc6 BK |
5729 | * Construct and return a new string using the @a __n |
5730 | * characters starting at @a __pos. If the string is too | |
5731 | * short, use the remainder of the characters. If @a __pos is | |
5732 | * beyond the end of the string, out_of_range is thrown. | |
284f19bf | 5733 | */ |
51122a42 | 5734 | basic_string |
725dc051 | 5735 | substr(size_type __pos = 0, size_type __n = npos) const |
0e50667c PC |
5736 | { return basic_string(*this, |
5737 | _M_check(__pos, "basic_string::substr"), __n); } | |
725dc051 | 5738 | |
284f19bf JQ |
5739 | /** |
5740 | * @brief Compare to a string. | |
93c66bc6 | 5741 | * @param __str String to compare against. |
284f19bf JQ |
5742 | * @return Integer < 0, 0, or > 0. |
5743 | * | |
93c66bc6 BK |
5744 | * Returns an integer < 0 if this string is ordered before @a |
5745 | * __str, 0 if their values are equivalent, or > 0 if this | |
5746 | * string is ordered after @a __str. Determines the effective | |
5747 | * length rlen of the strings to compare as the smallest of | |
5748 | * size() and str.size(). The function then compares the two | |
5749 | * strings by calling traits::compare(data(), str.data(),rlen). | |
5750 | * If the result of the comparison is nonzero returns it, | |
5751 | * otherwise the shorter one is ordered first. | |
284f19bf | 5752 | */ |
51122a42 | 5753 | int |
725dc051 BK |
5754 | compare(const basic_string& __str) const |
5755 | { | |
7778fa6e PC |
5756 | const size_type __size = this->size(); |
5757 | const size_type __osize = __str.size(); | |
5758 | const size_type __len = std::min(__size, __osize); | |
51122a42 | 5759 | |
725dc051 BK |
5760 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
5761 | if (!__r) | |
9521dd6b | 5762 | __r = _S_compare(__size, __osize); |
725dc051 BK |
5763 | return __r; |
5764 | } | |
5765 | ||
1a289fa3 | 5766 | #if __cplusplus >= 201703L |
92daf2de JW |
5767 | /** |
5768 | * @brief Compare to a string_view. | |
df66af3b | 5769 | * @param __svt An object convertible to string_view to compare against. |
92daf2de JW |
5770 | * @return Integer < 0, 0, or > 0. |
5771 | */ | |
df66af3b DK |
5772 | template<typename _Tp> |
5773 | _If_sv<_Tp, int> | |
5774 | compare(const _Tp& __svt) const | |
5775 | noexcept(is_same<_Tp, __sv_type>::value) | |
5776 | { | |
5777 | __sv_type __sv = __svt; | |
5778 | const size_type __size = this->size(); | |
5779 | const size_type __osize = __sv.size(); | |
5780 | const size_type __len = std::min(__size, __osize); | |
5781 | ||
5782 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); | |
5783 | if (!__r) | |
5784 | __r = _S_compare(__size, __osize); | |
5785 | return __r; | |
5786 | } | |
92daf2de JW |
5787 | |
5788 | /** | |
5789 | * @brief Compare to a string_view. | |
5790 | * @param __pos A position in the string to start comparing from. | |
5791 | * @param __n The number of characters to compare. | |
df66af3b DK |
5792 | * @param __svt An object convertible to string_view to compare |
5793 | * against. | |
92daf2de JW |
5794 | * @return Integer < 0, 0, or > 0. |
5795 | */ | |
df66af3b DK |
5796 | template<typename _Tp> |
5797 | _If_sv<_Tp, int> | |
5798 | compare(size_type __pos, size_type __n, const _Tp& __svt) const | |
5799 | noexcept(is_same<_Tp, __sv_type>::value) | |
5800 | { | |
5801 | __sv_type __sv = __svt; | |
5802 | return __sv_type(*this).substr(__pos, __n).compare(__sv); | |
5803 | } | |
92daf2de JW |
5804 | |
5805 | /** | |
5806 | * @brief Compare to a string_view. | |
5807 | * @param __pos1 A position in the string to start comparing from. | |
5808 | * @param __n1 The number of characters to compare. | |
df66af3b DK |
5809 | * @param __svt An object convertible to string_view to compare |
5810 | * against. | |
92daf2de JW |
5811 | * @param __pos2 A position in the string_view to start comparing from. |
5812 | * @param __n2 The number of characters to compare. | |
5813 | * @return Integer < 0, 0, or > 0. | |
5814 | */ | |
df66af3b | 5815 | template<typename _Tp> |
92daf2de JW |
5816 | _If_sv<_Tp, int> |
5817 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, | |
5818 | size_type __pos2, size_type __n2 = npos) const | |
df66af3b | 5819 | noexcept(is_same<_Tp, __sv_type>::value) |
92daf2de JW |
5820 | { |
5821 | __sv_type __sv = __svt; | |
5822 | return __sv_type(*this) | |
5823 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); | |
5824 | } | |
5825 | #endif // C++17 | |
5826 | ||
284f19bf JQ |
5827 | /** |
5828 | * @brief Compare substring to a string. | |
93c66bc6 BK |
5829 | * @param __pos Index of first character of substring. |
5830 | * @param __n Number of characters in substring. | |
5831 | * @param __str String to compare against. | |
284f19bf JQ |
5832 | * @return Integer < 0, 0, or > 0. |
5833 | * | |
93c66bc6 BK |
5834 | * Form the substring of this string from the @a __n characters |
5835 | * starting at @a __pos. Returns an integer < 0 if the | |
5836 | * substring is ordered before @a __str, 0 if their values are | |
5837 | * equivalent, or > 0 if the substring is ordered after @a | |
5838 | * __str. Determines the effective length rlen of the strings | |
5839 | * to compare as the smallest of the length of the substring | |
5840 | * and @a __str.size(). The function then compares the two | |
5841 | * strings by calling | |
5842 | * traits::compare(substring.data(),str.data(),rlen). If the | |
5843 | * result of the comparison is nonzero returns it, otherwise | |
5844 | * the shorter one is ordered first. | |
284f19bf | 5845 | */ |
51122a42 | 5846 | int |
725dc051 BK |
5847 | compare(size_type __pos, size_type __n, const basic_string& __str) const; |
5848 | ||
284f19bf JQ |
5849 | /** |
5850 | * @brief Compare substring to a substring. | |
93c66bc6 BK |
5851 | * @param __pos1 Index of first character of substring. |
5852 | * @param __n1 Number of characters in substring. | |
5853 | * @param __str String to compare against. | |
5854 | * @param __pos2 Index of first character of substring of str. | |
5855 | * @param __n2 Number of characters in substring of str. | |
284f19bf JQ |
5856 | * @return Integer < 0, 0, or > 0. |
5857 | * | |
93c66bc6 BK |
5858 | * Form the substring of this string from the @a __n1 |
5859 | * characters starting at @a __pos1. Form the substring of @a | |
5860 | * __str from the @a __n2 characters starting at @a __pos2. | |
5861 | * Returns an integer < 0 if this substring is ordered before | |
5862 | * the substring of @a __str, 0 if their values are equivalent, | |
5863 | * or > 0 if this substring is ordered after the substring of | |
5864 | * @a __str. Determines the effective length rlen of the | |
5865 | * strings to compare as the smallest of the lengths of the | |
5866 | * substrings. The function then compares the two strings by | |
5867 | * calling | |
a26b6b94 | 5868 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). |
93c66bc6 BK |
5869 | * If the result of the comparison is nonzero returns it, |
5870 | * otherwise the shorter one is ordered first. | |
284f19bf | 5871 | */ |
51122a42 | 5872 | int |
725dc051 | 5873 | compare(size_type __pos1, size_type __n1, const basic_string& __str, |
852ee53c | 5874 | size_type __pos2, size_type __n2 = npos) const; |
725dc051 | 5875 | |
284f19bf JQ |
5876 | /** |
5877 | * @brief Compare to a C string. | |
93c66bc6 | 5878 | * @param __s C string to compare against. |
284f19bf JQ |
5879 | * @return Integer < 0, 0, or > 0. |
5880 | * | |
93c66bc6 | 5881 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if |
284f19bf | 5882 | * their values are equivalent, or > 0 if this string is ordered after |
93c66bc6 | 5883 | * @a __s. Determines the effective length rlen of the strings to |
a26b6b94 | 5884 | * compare as the smallest of size() and the length of a string |
93c66bc6 | 5885 | * constructed from @a __s. The function then compares the two strings |
a26b6b94 PC |
5886 | * by calling traits::compare(data(),s,rlen). If the result of the |
5887 | * comparison is nonzero returns it, otherwise the shorter one is | |
5888 | * ordered first. | |
284f19bf | 5889 | */ |
51122a42 | 5890 | int |
39a03251 | 5891 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT; |
725dc051 | 5892 | |
3d7c150e | 5893 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
d56a8811 | 5894 | // 5 String::compare specification questionable |
284f19bf JQ |
5895 | /** |
5896 | * @brief Compare substring to a C string. | |
93c66bc6 BK |
5897 | * @param __pos Index of first character of substring. |
5898 | * @param __n1 Number of characters in substring. | |
5899 | * @param __s C string to compare against. | |
284f19bf JQ |
5900 | * @return Integer < 0, 0, or > 0. |
5901 | * | |
93c66bc6 BK |
5902 | * Form the substring of this string from the @a __n1 |
5903 | * characters starting at @a pos. Returns an integer < 0 if | |
5904 | * the substring is ordered before @a __s, 0 if their values | |
5905 | * are equivalent, or > 0 if the substring is ordered after @a | |
5906 | * __s. Determines the effective length rlen of the strings to | |
5907 | * compare as the smallest of the length of the substring and | |
5908 | * the length of a string constructed from @a __s. The | |
a26b6b94 | 5909 | * function then compares the two string by calling |
93c66bc6 BK |
5910 | * traits::compare(substring.data(),__s,rlen). If the result of |
5911 | * the comparison is nonzero returns it, otherwise the shorter | |
5912 | * one is ordered first. | |
284f19bf | 5913 | */ |
51122a42 | 5914 | int |
3b0fd4bc BK |
5915 | compare(size_type __pos, size_type __n1, const _CharT* __s) const; |
5916 | ||
284f19bf | 5917 | /** |
0d1141a3 | 5918 | * @brief Compare substring against a character %array. |
93c66bc6 BK |
5919 | * @param __pos Index of first character of substring. |
5920 | * @param __n1 Number of characters in substring. | |
5921 | * @param __s character %array to compare against. | |
5922 | * @param __n2 Number of characters of s. | |
284f19bf JQ |
5923 | * @return Integer < 0, 0, or > 0. |
5924 | * | |
93c66bc6 BK |
5925 | * Form the substring of this string from the @a __n1 |
5926 | * characters starting at @a __pos. Form a string from the | |
5927 | * first @a __n2 characters of @a __s. Returns an integer < 0 | |
5928 | * if this substring is ordered before the string from @a __s, | |
5929 | * 0 if their values are equivalent, or > 0 if this substring | |
5930 | * is ordered after the string from @a __s. Determines the | |
5931 | * effective length rlen of the strings to compare as the | |
5932 | * smallest of the length of the substring and @a __n2. The | |
5933 | * function then compares the two strings by calling | |
5934 | * traits::compare(substring.data(),s,rlen). If the result of | |
5935 | * the comparison is nonzero returns it, otherwise the shorter | |
a26b6b94 | 5936 | * one is ordered first. |
95c9624f | 5937 | * |
2a60a9f6 BK |
5938 | * NB: s must have at least n2 characters, '\\0' has |
5939 | * no special meaning. | |
284f19bf | 5940 | */ |
51122a42 PE |
5941 | int |
5942 | compare(size_type __pos, size_type __n1, const _CharT* __s, | |
3b0fd4bc | 5943 | size_type __n2) const; |
a04d5fc9 | 5944 | |
5bd624fb ESR |
5945 | #if __cplusplus > 201703L |
5946 | bool | |
5947 | starts_with(basic_string_view<_CharT, _Traits> __x) const noexcept | |
5948 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
5949 | ||
5950 | bool | |
5951 | starts_with(_CharT __x) const noexcept | |
5952 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
5953 | ||
5954 | bool | |
5955 | starts_with(const _CharT* __x) const noexcept | |
5956 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
5957 | ||
5958 | bool | |
5959 | ends_with(basic_string_view<_CharT, _Traits> __x) const noexcept | |
5960 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
5961 | ||
5962 | bool | |
5963 | ends_with(_CharT __x) const noexcept | |
5964 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
5965 | ||
5966 | bool | |
5967 | ends_with(const _CharT* __x) const noexcept | |
5968 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
5969 | #endif // C++20 | |
5970 | ||
a04d5fc9 TR |
5971 | # ifdef _GLIBCXX_TM_TS_INTERNAL |
5972 | friend void | |
5973 | ::_txnal_cow_string_C1_for_exceptions(void* that, const char* s, | |
5974 | void* exc); | |
5975 | friend const char* | |
5976 | ::_txnal_cow_string_c_str(const void *that); | |
5977 | friend void | |
5978 | ::_txnal_cow_string_D1(void *that); | |
5979 | friend void | |
5980 | ::_txnal_cow_string_D1_commit(void *that); | |
5981 | # endif | |
725dc051 | 5982 | }; |
34a2b755 | 5983 | #endif // !_GLIBCXX_USE_CXX11_ABI |
725dc051 | 5984 | |
6d82c562 JW |
5985 | #if __cpp_deduction_guides >= 201606 |
5986 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 | |
5987 | template<typename _InputIterator, typename _CharT | |
5988 | = typename iterator_traits<_InputIterator>::value_type, | |
5989 | typename _Allocator = allocator<_CharT>, | |
5990 | typename = _RequireInputIter<_InputIterator>, | |
5991 | typename = _RequireAllocator<_Allocator>> | |
5992 | basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator()) | |
5993 | -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; | |
53e926c8 JW |
5994 | |
5995 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
5996 | // 3075. basic_string needs deduction guides from basic_string_view | |
5997 | template<typename _CharT, typename _Traits, | |
5998 | typename _Allocator = allocator<_CharT>, | |
5999 | typename = _RequireAllocator<_Allocator>> | |
6000 | basic_string(basic_string_view<_CharT, _Traits>, const _Allocator& = _Allocator()) | |
6001 | -> basic_string<_CharT, _Traits, _Allocator>; | |
6002 | ||
6003 | template<typename _CharT, typename _Traits, | |
6004 | typename _Allocator = allocator<_CharT>, | |
6005 | typename = _RequireAllocator<_Allocator>> | |
6006 | basic_string(basic_string_view<_CharT, _Traits>, | |
6007 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, | |
6008 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, | |
6009 | const _Allocator& = _Allocator()) | |
6010 | -> basic_string<_CharT, _Traits, _Allocator>; | |
6d82c562 JW |
6011 | _GLIBCXX_END_NAMESPACE_CXX11 |
6012 | #endif | |
6013 | ||
725dc051 | 6014 | // operator+ |
284f19bf JQ |
6015 | /** |
6016 | * @brief Concatenate two strings. | |
93c66bc6 BK |
6017 | * @param __lhs First string. |
6018 | * @param __rhs Last string. | |
6019 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 6020 | */ |
41b8e86c | 6021 | template<typename _CharT, typename _Traits, typename _Alloc> |
725dc051 BK |
6022 | basic_string<_CharT, _Traits, _Alloc> |
6023 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6024 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6025 | { | |
6026 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
6027 | __str.append(__rhs); | |
6028 | return __str; | |
6029 | } | |
6030 | ||
284f19bf JQ |
6031 | /** |
6032 | * @brief Concatenate C string and string. | |
93c66bc6 BK |
6033 | * @param __lhs First string. |
6034 | * @param __rhs Last string. | |
6035 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 6036 | */ |
725dc051 BK |
6037 | template<typename _CharT, typename _Traits, typename _Alloc> |
6038 | basic_string<_CharT,_Traits,_Alloc> | |
6039 | operator+(const _CharT* __lhs, | |
6040 | const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
6041 | ||
284f19bf JQ |
6042 | /** |
6043 | * @brief Concatenate character and string. | |
93c66bc6 BK |
6044 | * @param __lhs First string. |
6045 | * @param __rhs Last string. | |
6046 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 6047 | */ |
725dc051 BK |
6048 | template<typename _CharT, typename _Traits, typename _Alloc> |
6049 | basic_string<_CharT,_Traits,_Alloc> | |
6050 | operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
6051 | ||
284f19bf JQ |
6052 | /** |
6053 | * @brief Concatenate string and C string. | |
93c66bc6 BK |
6054 | * @param __lhs First string. |
6055 | * @param __rhs Last string. | |
6056 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 6057 | */ |
725dc051 BK |
6058 | template<typename _CharT, typename _Traits, typename _Alloc> |
6059 | inline basic_string<_CharT, _Traits, _Alloc> | |
6060 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
34a2b755 | 6061 | const _CharT* __rhs) |
725dc051 BK |
6062 | { |
6063 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
6064 | __str.append(__rhs); | |
6065 | return __str; | |
6066 | } | |
6067 | ||
284f19bf JQ |
6068 | /** |
6069 | * @brief Concatenate string and character. | |
93c66bc6 BK |
6070 | * @param __lhs First string. |
6071 | * @param __rhs Last string. | |
6072 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 6073 | */ |
725dc051 BK |
6074 | template<typename _CharT, typename _Traits, typename _Alloc> |
6075 | inline basic_string<_CharT, _Traits, _Alloc> | |
6076 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs) | |
6077 | { | |
ed6814f7 | 6078 | typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
725dc051 BK |
6079 | typedef typename __string_type::size_type __size_type; |
6080 | __string_type __str(__lhs); | |
6081 | __str.append(__size_type(1), __rhs); | |
6082 | return __str; | |
6083 | } | |
6084 | ||
734f5023 | 6085 | #if __cplusplus >= 201103L |
ce99f498 PC |
6086 | template<typename _CharT, typename _Traits, typename _Alloc> |
6087 | inline basic_string<_CharT, _Traits, _Alloc> | |
6088 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
6089 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6090 | { return std::move(__lhs.append(__rhs)); } | |
6091 | ||
6092 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6093 | inline basic_string<_CharT, _Traits, _Alloc> | |
6094 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6095 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
6096 | { return std::move(__rhs.insert(0, __lhs)); } | |
6097 | ||
6098 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6099 | inline basic_string<_CharT, _Traits, _Alloc> | |
6100 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
6101 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
37a68925 | 6102 | { |
f4e678ef NDR |
6103 | #if _GLIBCXX_USE_CXX11_ABI |
6104 | using _Alloc_traits = allocator_traits<_Alloc>; | |
6105 | bool __use_rhs = false; | |
6106 | if _GLIBCXX17_CONSTEXPR (typename _Alloc_traits::is_always_equal{}) | |
6107 | __use_rhs = true; | |
6108 | else if (__lhs.get_allocator() == __rhs.get_allocator()) | |
6109 | __use_rhs = true; | |
6110 | if (__use_rhs) | |
6111 | #endif | |
6112 | { | |
6113 | const auto __size = __lhs.size() + __rhs.size(); | |
6114 | if (__size > __lhs.capacity() && __size <= __rhs.capacity()) | |
6115 | return std::move(__rhs.insert(0, __lhs)); | |
6116 | } | |
6117 | return std::move(__lhs.append(__rhs)); | |
37a68925 | 6118 | } |
ce99f498 PC |
6119 | |
6120 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6121 | inline basic_string<_CharT, _Traits, _Alloc> | |
6122 | operator+(const _CharT* __lhs, | |
6123 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
6124 | { return std::move(__rhs.insert(0, __lhs)); } | |
6125 | ||
6126 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6127 | inline basic_string<_CharT, _Traits, _Alloc> | |
37a68925 PC |
6128 | operator+(_CharT __lhs, |
6129 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
ce99f498 PC |
6130 | { return std::move(__rhs.insert(0, 1, __lhs)); } |
6131 | ||
6132 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6133 | inline basic_string<_CharT, _Traits, _Alloc> | |
6134 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
6135 | const _CharT* __rhs) | |
6136 | { return std::move(__lhs.append(__rhs)); } | |
6137 | ||
6138 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6139 | inline basic_string<_CharT, _Traits, _Alloc> | |
6140 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
6141 | _CharT __rhs) | |
6142 | { return std::move(__lhs.append(1, __rhs)); } | |
6143 | #endif | |
6144 | ||
725dc051 | 6145 | // operator == |
284f19bf JQ |
6146 | /** |
6147 | * @brief Test equivalence of two strings. | |
93c66bc6 BK |
6148 | * @param __lhs First string. |
6149 | * @param __rhs Second string. | |
6150 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 6151 | */ |
725dc051 BK |
6152 | template<typename _CharT, typename _Traits, typename _Alloc> |
6153 | inline bool | |
6154 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6155 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6156 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
6157 | { return __lhs.compare(__rhs) == 0; } |
6158 | ||
bd12160a PC |
6159 | template<typename _CharT> |
6160 | inline | |
6161 | typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, bool>::__type | |
6162 | operator==(const basic_string<_CharT>& __lhs, | |
5caff414 | 6163 | const basic_string<_CharT>& __rhs) _GLIBCXX_NOEXCEPT |
bd12160a PC |
6164 | { return (__lhs.size() == __rhs.size() |
6165 | && !std::char_traits<_CharT>::compare(__lhs.data(), __rhs.data(), | |
6166 | __lhs.size())); } | |
6167 | ||
284f19bf JQ |
6168 | /** |
6169 | * @brief Test equivalence of string and C string. | |
93c66bc6 BK |
6170 | * @param __lhs String. |
6171 | * @param __rhs C string. | |
6172 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 6173 | */ |
725dc051 BK |
6174 | template<typename _CharT, typename _Traits, typename _Alloc> |
6175 | inline bool | |
6176 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6177 | const _CharT* __rhs) | |
6178 | { return __lhs.compare(__rhs) == 0; } | |
6179 | ||
875d6cb3 JW |
6180 | #if __cpp_lib_three_way_comparison |
6181 | /** | |
6182 | * @brief Three-way comparison of a string and a C string. | |
6183 | * @param __lhs A string. | |
6184 | * @param __rhs A null-terminated string. | |
6185 | * @return A value indicating whether `__lhs` is less than, equal to, | |
6186 | * greater than, or incomparable with `__rhs`. | |
6187 | */ | |
6188 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6189 | inline auto | |
6190 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6191 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) noexcept | |
6192 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) | |
6193 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } | |
6194 | ||
6195 | /** | |
6196 | * @brief Three-way comparison of a string and a C string. | |
6197 | * @param __lhs A string. | |
6198 | * @param __rhs A null-terminated string. | |
6199 | * @return A value indicating whether `__lhs` is less than, equal to, | |
6200 | * greater than, or incomparable with `__rhs`. | |
6201 | */ | |
6202 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6203 | inline auto | |
6204 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6205 | const _CharT* __rhs) noexcept | |
6206 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) | |
6207 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } | |
6208 | #else | |
6209 | /** | |
6210 | * @brief Test equivalence of C string and string. | |
6211 | * @param __lhs C string. | |
6212 | * @param __rhs String. | |
6213 | * @return True if @a __rhs.compare(@a __lhs) == 0. False otherwise. | |
6214 | */ | |
6215 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6216 | inline bool | |
6217 | operator==(const _CharT* __lhs, | |
6218 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6219 | { return __rhs.compare(__lhs) == 0; } | |
6220 | ||
725dc051 | 6221 | // operator != |
284f19bf JQ |
6222 | /** |
6223 | * @brief Test difference of two strings. | |
93c66bc6 BK |
6224 | * @param __lhs First string. |
6225 | * @param __rhs Second string. | |
6226 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 6227 | */ |
725dc051 BK |
6228 | template<typename _CharT, typename _Traits, typename _Alloc> |
6229 | inline bool | |
6230 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6231 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6232 | _GLIBCXX_NOEXCEPT |
bd12160a | 6233 | { return !(__lhs == __rhs); } |
725dc051 | 6234 | |
284f19bf JQ |
6235 | /** |
6236 | * @brief Test difference of C string and string. | |
93c66bc6 BK |
6237 | * @param __lhs C string. |
6238 | * @param __rhs String. | |
6239 | * @return True if @a __rhs.compare(@a __lhs) != 0. False otherwise. | |
ed6814f7 | 6240 | */ |
725dc051 BK |
6241 | template<typename _CharT, typename _Traits, typename _Alloc> |
6242 | inline bool | |
6243 | operator!=(const _CharT* __lhs, | |
6244 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
bd12160a | 6245 | { return !(__lhs == __rhs); } |
725dc051 | 6246 | |
284f19bf JQ |
6247 | /** |
6248 | * @brief Test difference of string and C string. | |
93c66bc6 BK |
6249 | * @param __lhs String. |
6250 | * @param __rhs C string. | |
6251 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 6252 | */ |
725dc051 BK |
6253 | template<typename _CharT, typename _Traits, typename _Alloc> |
6254 | inline bool | |
6255 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6256 | const _CharT* __rhs) | |
bd12160a | 6257 | { return !(__lhs == __rhs); } |
725dc051 BK |
6258 | |
6259 | // operator < | |
284f19bf JQ |
6260 | /** |
6261 | * @brief Test if string precedes string. | |
93c66bc6 BK |
6262 | * @param __lhs First string. |
6263 | * @param __rhs Second string. | |
6264 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 6265 | */ |
725dc051 BK |
6266 | template<typename _CharT, typename _Traits, typename _Alloc> |
6267 | inline bool | |
6268 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6269 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6270 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
6271 | { return __lhs.compare(__rhs) < 0; } |
6272 | ||
284f19bf JQ |
6273 | /** |
6274 | * @brief Test if string precedes C string. | |
93c66bc6 BK |
6275 | * @param __lhs String. |
6276 | * @param __rhs C string. | |
6277 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 6278 | */ |
725dc051 BK |
6279 | template<typename _CharT, typename _Traits, typename _Alloc> |
6280 | inline bool | |
6281 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6282 | const _CharT* __rhs) | |
6283 | { return __lhs.compare(__rhs) < 0; } | |
6284 | ||
284f19bf JQ |
6285 | /** |
6286 | * @brief Test if C string precedes string. | |
93c66bc6 BK |
6287 | * @param __lhs C string. |
6288 | * @param __rhs String. | |
6289 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 6290 | */ |
725dc051 BK |
6291 | template<typename _CharT, typename _Traits, typename _Alloc> |
6292 | inline bool | |
6293 | operator<(const _CharT* __lhs, | |
6294 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6295 | { return __rhs.compare(__lhs) > 0; } | |
6296 | ||
6297 | // operator > | |
284f19bf JQ |
6298 | /** |
6299 | * @brief Test if string follows string. | |
93c66bc6 BK |
6300 | * @param __lhs First string. |
6301 | * @param __rhs Second string. | |
6302 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 6303 | */ |
725dc051 BK |
6304 | template<typename _CharT, typename _Traits, typename _Alloc> |
6305 | inline bool | |
6306 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6307 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6308 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
6309 | { return __lhs.compare(__rhs) > 0; } |
6310 | ||
284f19bf JQ |
6311 | /** |
6312 | * @brief Test if string follows C string. | |
93c66bc6 BK |
6313 | * @param __lhs String. |
6314 | * @param __rhs C string. | |
6315 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 6316 | */ |
725dc051 BK |
6317 | template<typename _CharT, typename _Traits, typename _Alloc> |
6318 | inline bool | |
6319 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6320 | const _CharT* __rhs) | |
6321 | { return __lhs.compare(__rhs) > 0; } | |
6322 | ||
284f19bf JQ |
6323 | /** |
6324 | * @brief Test if C string follows string. | |
93c66bc6 BK |
6325 | * @param __lhs C string. |
6326 | * @param __rhs String. | |
6327 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 6328 | */ |
725dc051 BK |
6329 | template<typename _CharT, typename _Traits, typename _Alloc> |
6330 | inline bool | |
6331 | operator>(const _CharT* __lhs, | |
6332 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6333 | { return __rhs.compare(__lhs) < 0; } | |
6334 | ||
6335 | // operator <= | |
284f19bf JQ |
6336 | /** |
6337 | * @brief Test if string doesn't follow string. | |
93c66bc6 BK |
6338 | * @param __lhs First string. |
6339 | * @param __rhs Second string. | |
6340 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 6341 | */ |
725dc051 BK |
6342 | template<typename _CharT, typename _Traits, typename _Alloc> |
6343 | inline bool | |
6344 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6345 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6346 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
6347 | { return __lhs.compare(__rhs) <= 0; } |
6348 | ||
284f19bf JQ |
6349 | /** |
6350 | * @brief Test if string doesn't follow C string. | |
93c66bc6 BK |
6351 | * @param __lhs String. |
6352 | * @param __rhs C string. | |
6353 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 6354 | */ |
725dc051 BK |
6355 | template<typename _CharT, typename _Traits, typename _Alloc> |
6356 | inline bool | |
6357 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6358 | const _CharT* __rhs) | |
6359 | { return __lhs.compare(__rhs) <= 0; } | |
6360 | ||
284f19bf JQ |
6361 | /** |
6362 | * @brief Test if C string doesn't follow string. | |
93c66bc6 BK |
6363 | * @param __lhs C string. |
6364 | * @param __rhs String. | |
6365 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 6366 | */ |
725dc051 BK |
6367 | template<typename _CharT, typename _Traits, typename _Alloc> |
6368 | inline bool | |
6369 | operator<=(const _CharT* __lhs, | |
6370 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
e9fb72e8 | 6371 | { return __rhs.compare(__lhs) >= 0; } |
725dc051 BK |
6372 | |
6373 | // operator >= | |
284f19bf JQ |
6374 | /** |
6375 | * @brief Test if string doesn't precede string. | |
93c66bc6 BK |
6376 | * @param __lhs First string. |
6377 | * @param __rhs Second string. | |
6378 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 6379 | */ |
725dc051 BK |
6380 | template<typename _CharT, typename _Traits, typename _Alloc> |
6381 | inline bool | |
6382 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6383 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6384 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
6385 | { return __lhs.compare(__rhs) >= 0; } |
6386 | ||
284f19bf JQ |
6387 | /** |
6388 | * @brief Test if string doesn't precede C string. | |
93c66bc6 BK |
6389 | * @param __lhs String. |
6390 | * @param __rhs C string. | |
6391 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 6392 | */ |
725dc051 BK |
6393 | template<typename _CharT, typename _Traits, typename _Alloc> |
6394 | inline bool | |
6395 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6396 | const _CharT* __rhs) | |
6397 | { return __lhs.compare(__rhs) >= 0; } | |
6398 | ||
284f19bf JQ |
6399 | /** |
6400 | * @brief Test if C string doesn't precede string. | |
93c66bc6 BK |
6401 | * @param __lhs C string. |
6402 | * @param __rhs String. | |
6403 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 6404 | */ |
725dc051 BK |
6405 | template<typename _CharT, typename _Traits, typename _Alloc> |
6406 | inline bool | |
6407 | operator>=(const _CharT* __lhs, | |
6408 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
6409 | { return __rhs.compare(__lhs) <= 0; } | |
875d6cb3 | 6410 | #endif // three-way comparison |
725dc051 | 6411 | |
284f19bf JQ |
6412 | /** |
6413 | * @brief Swap contents of two strings. | |
93c66bc6 BK |
6414 | * @param __lhs First string. |
6415 | * @param __rhs Second string. | |
284f19bf | 6416 | * |
93c66bc6 | 6417 | * Exchanges the contents of @a __lhs and @a __rhs in constant time. |
284f19bf | 6418 | */ |
725dc051 BK |
6419 | template<typename _CharT, typename _Traits, typename _Alloc> |
6420 | inline void | |
6421 | swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
6422 | basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 6423 | _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs))) |
725dc051 BK |
6424 | { __lhs.swap(__rhs); } |
6425 | ||
34a2b755 | 6426 | |
284f19bf JQ |
6427 | /** |
6428 | * @brief Read stream into a string. | |
93c66bc6 BK |
6429 | * @param __is Input stream. |
6430 | * @param __str Buffer to store into. | |
284f19bf JQ |
6431 | * @return Reference to the input stream. |
6432 | * | |
93c66bc6 BK |
6433 | * Stores characters from @a __is into @a __str until whitespace is |
6434 | * found, the end of the stream is encountered, or str.max_size() | |
6435 | * is reached. If is.width() is non-zero, that is the limit on the | |
6436 | * number of characters stored into @a __str. Any previous | |
6437 | * contents of @a __str are erased. | |
284f19bf | 6438 | */ |
725dc051 BK |
6439 | template<typename _CharT, typename _Traits, typename _Alloc> |
6440 | basic_istream<_CharT, _Traits>& | |
6441 | operator>>(basic_istream<_CharT, _Traits>& __is, | |
6442 | basic_string<_CharT, _Traits, _Alloc>& __str); | |
6443 | ||
ceed88b1 PC |
6444 | template<> |
6445 | basic_istream<char>& | |
6446 | operator>>(basic_istream<char>& __is, basic_string<char>& __str); | |
6447 | ||
284f19bf JQ |
6448 | /** |
6449 | * @brief Write string to a stream. | |
93c66bc6 BK |
6450 | * @param __os Output stream. |
6451 | * @param __str String to write out. | |
284f19bf JQ |
6452 | * @return Reference to the output stream. |
6453 | * | |
93c66bc6 | 6454 | * Output characters of @a __str into os following the same rules as for |
284f19bf JQ |
6455 | * writing a C string. |
6456 | */ | |
725dc051 | 6457 | template<typename _CharT, typename _Traits, typename _Alloc> |
70c99f6c | 6458 | inline basic_ostream<_CharT, _Traits>& |
725dc051 | 6459 | operator<<(basic_ostream<_CharT, _Traits>& __os, |
ec2061a9 PC |
6460 | const basic_string<_CharT, _Traits, _Alloc>& __str) |
6461 | { | |
6462 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
6463 | // 586. string inserter not a formatted function | |
11202768 | 6464 | return __ostream_insert(__os, __str.data(), __str.size()); |
ec2061a9 | 6465 | } |
725dc051 | 6466 | |
284f19bf JQ |
6467 | /** |
6468 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
6469 | * @param __is Input stream. |
6470 | * @param __str Buffer to store into. | |
6471 | * @param __delim Character marking end of line. | |
284f19bf JQ |
6472 | * @return Reference to the input stream. |
6473 | * | |
93c66bc6 BK |
6474 | * Stores characters from @a __is into @a __str until @a __delim is |
6475 | * found, the end of the stream is encountered, or str.max_size() | |
3b2453a9 JW |
6476 | * is reached. Any previous contents of @a __str are erased. If |
6477 | * @a __delim is encountered, it is extracted but not stored into | |
6478 | * @a __str. | |
284f19bf | 6479 | */ |
725dc051 | 6480 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 6481 | basic_istream<_CharT, _Traits>& |
725dc051 BK |
6482 | getline(basic_istream<_CharT, _Traits>& __is, |
6483 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim); | |
6484 | ||
284f19bf JQ |
6485 | /** |
6486 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
6487 | * @param __is Input stream. |
6488 | * @param __str Buffer to store into. | |
284f19bf JQ |
6489 | * @return Reference to the input stream. |
6490 | * | |
93c66bc6 | 6491 | * Stores characters from is into @a __str until '\n' is |
2a60a9f6 | 6492 | * found, the end of the stream is encountered, or str.max_size() |
3b2453a9 JW |
6493 | * is reached. Any previous contents of @a __str are erased. If |
6494 | * end of line is encountered, it is extracted but not stored into | |
6495 | * @a __str. | |
284f19bf | 6496 | */ |
725dc051 | 6497 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 6498 | inline basic_istream<_CharT, _Traits>& |
725dc051 | 6499 | getline(basic_istream<_CharT, _Traits>& __is, |
70c99f6c | 6500 | basic_string<_CharT, _Traits, _Alloc>& __str) |
19173661 JW |
6501 | { return std::getline(__is, __str, __is.widen('\n')); } |
6502 | ||
6503 | #if __cplusplus >= 201103L | |
6504 | /// Read a line from an rvalue stream into a string. | |
6505 | template<typename _CharT, typename _Traits, typename _Alloc> | |
caff45a6 | 6506 | inline basic_istream<_CharT, _Traits>& |
19173661 JW |
6507 | getline(basic_istream<_CharT, _Traits>&& __is, |
6508 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim) | |
6509 | { return std::getline(__is, __str, __delim); } | |
6510 | ||
6511 | /// Read a line from an rvalue stream into a string. | |
6512 | template<typename _CharT, typename _Traits, typename _Alloc> | |
6513 | inline basic_istream<_CharT, _Traits>& | |
6514 | getline(basic_istream<_CharT, _Traits>&& __is, | |
6515 | basic_string<_CharT, _Traits, _Alloc>& __str) | |
6516 | { return std::getline(__is, __str); } | |
6517 | #endif | |
70c99f6c | 6518 | |
e9fb72e8 PC |
6519 | template<> |
6520 | basic_istream<char>& | |
6521 | getline(basic_istream<char>& __in, basic_string<char>& __str, | |
6522 | char __delim); | |
6523 | ||
6524 | #ifdef _GLIBCXX_USE_WCHAR_T | |
6525 | template<> | |
6526 | basic_istream<wchar_t>& | |
6527 | getline(basic_istream<wchar_t>& __in, basic_string<wchar_t>& __str, | |
6528 | wchar_t __delim); | |
6529 | #endif | |
3cbc7af0 | 6530 | |
12ffa228 BK |
6531 | _GLIBCXX_END_NAMESPACE_VERSION |
6532 | } // namespace | |
7364f286 | 6533 | |
23c64853 | 6534 | #if __cplusplus >= 201103L |
7364f286 | 6535 | |
a5a6b586 | 6536 | #include <ext/string_conversions.h> |
cd0b94e6 | 6537 | #include <bits/charconv.h> |
7364f286 | 6538 | |
12ffa228 BK |
6539 | namespace std _GLIBCXX_VISIBILITY(default) |
6540 | { | |
6541 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
34a2b755 | 6542 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 |
7364f286 | 6543 | |
23c64853 | 6544 | #if _GLIBCXX_USE_C99_STDLIB |
a5a6b586 PC |
6545 | // 21.4 Numeric Conversions [string.conversions]. |
6546 | inline int | |
6547 | stoi(const string& __str, size_t* __idx = 0, int __base = 10) | |
6548 | { return __gnu_cxx::__stoa<long, int>(&std::strtol, "stoi", __str.c_str(), | |
6549 | __idx, __base); } | |
6550 | ||
6551 | inline long | |
6552 | stol(const string& __str, size_t* __idx = 0, int __base = 10) | |
6553 | { return __gnu_cxx::__stoa(&std::strtol, "stol", __str.c_str(), | |
6554 | __idx, __base); } | |
6555 | ||
6556 | inline unsigned long | |
6557 | stoul(const string& __str, size_t* __idx = 0, int __base = 10) | |
6558 | { return __gnu_cxx::__stoa(&std::strtoul, "stoul", __str.c_str(), | |
6559 | __idx, __base); } | |
6560 | ||
6561 | inline long long | |
6562 | stoll(const string& __str, size_t* __idx = 0, int __base = 10) | |
6563 | { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(), | |
6564 | __idx, __base); } | |
6565 | ||
6566 | inline unsigned long long | |
6567 | stoull(const string& __str, size_t* __idx = 0, int __base = 10) | |
6568 | { return __gnu_cxx::__stoa(&std::strtoull, "stoull", __str.c_str(), | |
6569 | __idx, __base); } | |
6570 | ||
6571 | // NB: strtof vs strtod. | |
6572 | inline float | |
6573 | stof(const string& __str, size_t* __idx = 0) | |
6574 | { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); } | |
6575 | ||
6576 | inline double | |
6577 | stod(const string& __str, size_t* __idx = 0) | |
6578 | { return __gnu_cxx::__stoa(&std::strtod, "stod", __str.c_str(), __idx); } | |
6579 | ||
6580 | inline long double | |
6581 | stold(const string& __str, size_t* __idx = 0) | |
6582 | { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); } | |
23c64853 | 6583 | #endif // _GLIBCXX_USE_C99_STDLIB |
a5a6b586 | 6584 | |
cd0b94e6 | 6585 | // DR 1261. Insufficent overloads for to_string / to_wstring |
a4ecd144 | 6586 | |
a4ecd144 PC |
6587 | inline string |
6588 | to_string(int __val) | |
cd0b94e6 JW |
6589 | { |
6590 | const bool __neg = __val < 0; | |
6591 | const unsigned __uval = __neg ? (unsigned)~__val + 1u : __val; | |
6592 | const auto __len = __detail::__to_chars_len(__uval); | |
6593 | string __str(__neg + __len, '-'); | |
6594 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
6595 | return __str; | |
6596 | } | |
a4ecd144 PC |
6597 | |
6598 | inline string | |
6599 | to_string(unsigned __val) | |
cd0b94e6 JW |
6600 | { |
6601 | string __str(__detail::__to_chars_len(__val), '\0'); | |
6602 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
6603 | return __str; | |
6604 | } | |
a4ecd144 PC |
6605 | |
6606 | inline string | |
6607 | to_string(long __val) | |
cd0b94e6 JW |
6608 | { |
6609 | const bool __neg = __val < 0; | |
6610 | const unsigned long __uval = __neg ? (unsigned long)~__val + 1ul : __val; | |
6611 | const auto __len = __detail::__to_chars_len(__uval); | |
6612 | string __str(__neg + __len, '-'); | |
6613 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
6614 | return __str; | |
6615 | } | |
a4ecd144 PC |
6616 | |
6617 | inline string | |
6618 | to_string(unsigned long __val) | |
cd0b94e6 JW |
6619 | { |
6620 | string __str(__detail::__to_chars_len(__val), '\0'); | |
6621 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
6622 | return __str; | |
6623 | } | |
a4ecd144 | 6624 | |
a5a6b586 PC |
6625 | inline string |
6626 | to_string(long long __val) | |
cd0b94e6 JW |
6627 | { |
6628 | const bool __neg = __val < 0; | |
6629 | const unsigned long long __uval | |
6630 | = __neg ? (unsigned long long)~__val + 1ull : __val; | |
6631 | const auto __len = __detail::__to_chars_len(__uval); | |
6632 | string __str(__neg + __len, '-'); | |
6633 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
6634 | return __str; | |
6635 | } | |
a5a6b586 PC |
6636 | |
6637 | inline string | |
6638 | to_string(unsigned long long __val) | |
cd0b94e6 JW |
6639 | { |
6640 | string __str(__detail::__to_chars_len(__val), '\0'); | |
6641 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
6642 | return __str; | |
6643 | } | |
6644 | ||
6645 | #if _GLIBCXX_USE_C99_STDIO | |
6646 | // NB: (v)snprintf vs sprintf. | |
a5a6b586 | 6647 | |
a4ecd144 PC |
6648 | inline string |
6649 | to_string(float __val) | |
6650 | { | |
6651 | const int __n = | |
6652 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
6653 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
6654 | "%f", __val); | |
6655 | } | |
6656 | ||
6657 | inline string | |
6658 | to_string(double __val) | |
6659 | { | |
6660 | const int __n = | |
6661 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
6662 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
6663 | "%f", __val); | |
6664 | } | |
6665 | ||
a5a6b586 PC |
6666 | inline string |
6667 | to_string(long double __val) | |
6668 | { | |
6669 | const int __n = | |
6670 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
6671 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
6672 | "%Lf", __val); | |
6673 | } | |
23c64853 | 6674 | #endif // _GLIBCXX_USE_C99_STDIO |
7364f286 | 6675 | |
356510ac | 6676 | #if defined(_GLIBCXX_USE_WCHAR_T) && _GLIBCXX_USE_C99_WCHAR |
a5a6b586 PC |
6677 | inline int |
6678 | stoi(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6679 | { return __gnu_cxx::__stoa<long, int>(&std::wcstol, "stoi", __str.c_str(), | |
6680 | __idx, __base); } | |
6681 | ||
6682 | inline long | |
6683 | stol(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6684 | { return __gnu_cxx::__stoa(&std::wcstol, "stol", __str.c_str(), | |
6685 | __idx, __base); } | |
6686 | ||
6687 | inline unsigned long | |
6688 | stoul(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6689 | { return __gnu_cxx::__stoa(&std::wcstoul, "stoul", __str.c_str(), | |
6690 | __idx, __base); } | |
6691 | ||
6692 | inline long long | |
6693 | stoll(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6694 | { return __gnu_cxx::__stoa(&std::wcstoll, "stoll", __str.c_str(), | |
6695 | __idx, __base); } | |
6696 | ||
6697 | inline unsigned long long | |
6698 | stoull(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
6699 | { return __gnu_cxx::__stoa(&std::wcstoull, "stoull", __str.c_str(), | |
6700 | __idx, __base); } | |
6701 | ||
6702 | // NB: wcstof vs wcstod. | |
6703 | inline float | |
6704 | stof(const wstring& __str, size_t* __idx = 0) | |
6705 | { return __gnu_cxx::__stoa(&std::wcstof, "stof", __str.c_str(), __idx); } | |
6706 | ||
6707 | inline double | |
6708 | stod(const wstring& __str, size_t* __idx = 0) | |
6709 | { return __gnu_cxx::__stoa(&std::wcstod, "stod", __str.c_str(), __idx); } | |
6710 | ||
6711 | inline long double | |
6712 | stold(const wstring& __str, size_t* __idx = 0) | |
6713 | { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); } | |
6714 | ||
f37f5fb8 | 6715 | #ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
a4ecd144 PC |
6716 | // DR 1261. |
6717 | inline wstring | |
6718 | to_wstring(int __val) | |
6719 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(int), | |
6720 | L"%d", __val); } | |
6721 | ||
6722 | inline wstring | |
6723 | to_wstring(unsigned __val) | |
6724 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6725 | 4 * sizeof(unsigned), | |
6726 | L"%u", __val); } | |
6727 | ||
6728 | inline wstring | |
6729 | to_wstring(long __val) | |
6730 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(long), | |
6731 | L"%ld", __val); } | |
6732 | ||
6733 | inline wstring | |
6734 | to_wstring(unsigned long __val) | |
6735 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6736 | 4 * sizeof(unsigned long), | |
6737 | L"%lu", __val); } | |
6738 | ||
a5a6b586 PC |
6739 | inline wstring |
6740 | to_wstring(long long __val) | |
6741 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6742 | 4 * sizeof(long long), | |
6743 | L"%lld", __val); } | |
6744 | ||
6745 | inline wstring | |
6746 | to_wstring(unsigned long long __val) | |
6747 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
6748 | 4 * sizeof(unsigned long long), | |
6749 | L"%llu", __val); } | |
6750 | ||
a4ecd144 PC |
6751 | inline wstring |
6752 | to_wstring(float __val) | |
6753 | { | |
6754 | const int __n = | |
6755 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
6756 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
6757 | L"%f", __val); | |
6758 | } | |
6759 | ||
6760 | inline wstring | |
6761 | to_wstring(double __val) | |
6762 | { | |
6763 | const int __n = | |
6764 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
6765 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
6766 | L"%f", __val); | |
6767 | } | |
6768 | ||
a5a6b586 PC |
6769 | inline wstring |
6770 | to_wstring(long double __val) | |
6771 | { | |
6772 | const int __n = | |
6773 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
6774 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
6775 | L"%Lf", __val); | |
6776 | } | |
f37f5fb8 | 6777 | #endif // _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
23c64853 | 6778 | #endif // _GLIBCXX_USE_WCHAR_T && _GLIBCXX_USE_C99_WCHAR |
7364f286 | 6779 | |
34a2b755 | 6780 | _GLIBCXX_END_NAMESPACE_CXX11 |
12ffa228 BK |
6781 | _GLIBCXX_END_NAMESPACE_VERSION |
6782 | } // namespace | |
725dc051 | 6783 | |
23c64853 | 6784 | #endif /* C++11 */ |
15d81a3c | 6785 | |
734f5023 | 6786 | #if __cplusplus >= 201103L |
15d81a3c PC |
6787 | |
6788 | #include <bits/functional_hash.h> | |
6789 | ||
12ffa228 BK |
6790 | namespace std _GLIBCXX_VISIBILITY(default) |
6791 | { | |
6792 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
15d81a3c PC |
6793 | |
6794 | // DR 1182. | |
6795 | ||
6796 | #ifndef _GLIBCXX_COMPATIBILITY_CXX0X | |
6797 | /// std::hash specialization for string. | |
6798 | template<> | |
6799 | struct hash<string> | |
5d64ee19 | 6800 | : public __hash_base<size_t, string> |
15d81a3c PC |
6801 | { |
6802 | size_t | |
72f1c34b | 6803 | operator()(const string& __s) const noexcept |
e7f72940 | 6804 | { return std::_Hash_impl::hash(__s.data(), __s.length()); } |
15d81a3c PC |
6805 | }; |
6806 | ||
4df047dd FD |
6807 | template<> |
6808 | struct __is_fast_hash<hash<string>> : std::false_type | |
6809 | { }; | |
6810 | ||
15d81a3c PC |
6811 | #ifdef _GLIBCXX_USE_WCHAR_T |
6812 | /// std::hash specialization for wstring. | |
6813 | template<> | |
6814 | struct hash<wstring> | |
5d64ee19 | 6815 | : public __hash_base<size_t, wstring> |
15d81a3c PC |
6816 | { |
6817 | size_t | |
72f1c34b | 6818 | operator()(const wstring& __s) const noexcept |
e7f72940 MA |
6819 | { return std::_Hash_impl::hash(__s.data(), |
6820 | __s.length() * sizeof(wchar_t)); } | |
15d81a3c | 6821 | }; |
4df047dd FD |
6822 | |
6823 | template<> | |
6824 | struct __is_fast_hash<hash<wstring>> : std::false_type | |
6825 | { }; | |
a5a6b586 | 6826 | #endif |
15d81a3c PC |
6827 | #endif /* _GLIBCXX_COMPATIBILITY_CXX0X */ |
6828 | ||
c124af93 TH |
6829 | #ifdef _GLIBCXX_USE_CHAR8_T |
6830 | /// std::hash specialization for u8string. | |
6831 | template<> | |
6832 | struct hash<u8string> | |
6833 | : public __hash_base<size_t, u8string> | |
6834 | { | |
6835 | size_t | |
6836 | operator()(const u8string& __s) const noexcept | |
6837 | { return std::_Hash_impl::hash(__s.data(), | |
6838 | __s.length() * sizeof(char8_t)); } | |
6839 | }; | |
6840 | ||
6841 | template<> | |
6842 | struct __is_fast_hash<hash<u8string>> : std::false_type | |
6843 | { }; | |
6844 | #endif | |
6845 | ||
15d81a3c PC |
6846 | /// std::hash specialization for u16string. |
6847 | template<> | |
6848 | struct hash<u16string> | |
5d64ee19 | 6849 | : public __hash_base<size_t, u16string> |
15d81a3c PC |
6850 | { |
6851 | size_t | |
72f1c34b | 6852 | operator()(const u16string& __s) const noexcept |
e7f72940 MA |
6853 | { return std::_Hash_impl::hash(__s.data(), |
6854 | __s.length() * sizeof(char16_t)); } | |
15d81a3c PC |
6855 | }; |
6856 | ||
4df047dd FD |
6857 | template<> |
6858 | struct __is_fast_hash<hash<u16string>> : std::false_type | |
6859 | { }; | |
6860 | ||
15d81a3c PC |
6861 | /// std::hash specialization for u32string. |
6862 | template<> | |
6863 | struct hash<u32string> | |
5d64ee19 | 6864 | : public __hash_base<size_t, u32string> |
15d81a3c PC |
6865 | { |
6866 | size_t | |
72f1c34b | 6867 | operator()(const u32string& __s) const noexcept |
e7f72940 MA |
6868 | { return std::_Hash_impl::hash(__s.data(), |
6869 | __s.length() * sizeof(char32_t)); } | |
15d81a3c | 6870 | }; |
4df047dd FD |
6871 | |
6872 | template<> | |
6873 | struct __is_fast_hash<hash<u32string>> : std::false_type | |
6874 | { }; | |
15d81a3c | 6875 | |
10f26de9 | 6876 | #if __cplusplus >= 201402L |
1c9f675f | 6877 | |
a15f7cb8 ESR |
6878 | #define __cpp_lib_string_udls 201304 |
6879 | ||
0372af98 ESR |
6880 | inline namespace literals |
6881 | { | |
6882 | inline namespace string_literals | |
6883 | { | |
f03858e5 JW |
6884 | #pragma GCC diagnostic push |
6885 | #pragma GCC diagnostic ignored "-Wliteral-suffix" | |
34a2b755 | 6886 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6887 | inline basic_string<char> |
e9a64492 | 6888 | operator""s(const char* __str, size_t __len) |
88c4d6b7 | 6889 | { return basic_string<char>{__str, __len}; } |
1c9f675f ESR |
6890 | |
6891 | #ifdef _GLIBCXX_USE_WCHAR_T | |
34a2b755 | 6892 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6893 | inline basic_string<wchar_t> |
e9a64492 | 6894 | operator""s(const wchar_t* __str, size_t __len) |
88c4d6b7 | 6895 | { return basic_string<wchar_t>{__str, __len}; } |
1c9f675f ESR |
6896 | #endif |
6897 | ||
c124af93 TH |
6898 | #ifdef _GLIBCXX_USE_CHAR8_T |
6899 | _GLIBCXX_DEFAULT_ABI_TAG | |
6900 | inline basic_string<char8_t> | |
6901 | operator""s(const char8_t* __str, size_t __len) | |
6902 | { return basic_string<char8_t>{__str, __len}; } | |
6903 | #endif | |
6904 | ||
34a2b755 | 6905 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6906 | inline basic_string<char16_t> |
e9a64492 | 6907 | operator""s(const char16_t* __str, size_t __len) |
88c4d6b7 | 6908 | { return basic_string<char16_t>{__str, __len}; } |
1c9f675f | 6909 | |
34a2b755 | 6910 | _GLIBCXX_DEFAULT_ABI_TAG |
88c4d6b7 | 6911 | inline basic_string<char32_t> |
e9a64492 | 6912 | operator""s(const char32_t* __str, size_t __len) |
88c4d6b7 | 6913 | { return basic_string<char32_t>{__str, __len}; } |
1c9f675f | 6914 | |
f03858e5 | 6915 | #pragma GCC diagnostic pop |
88c4d6b7 ESR |
6916 | } // inline namespace string_literals |
6917 | } // inline namespace literals | |
6918 | ||
10f26de9 JW |
6919 | #if __cplusplus >= 201703L |
6920 | namespace __detail::__variant | |
6921 | { | |
6922 | template<typename> struct _Never_valueless_alt; // see <variant> | |
6923 | ||
6924 | // Provide the strong exception-safety guarantee when emplacing a | |
47a468bd | 6925 | // basic_string into a variant, but only if moving the string cannot throw. |
10f26de9 JW |
6926 | template<typename _Tp, typename _Traits, typename _Alloc> |
6927 | struct _Never_valueless_alt<std::basic_string<_Tp, _Traits, _Alloc>> | |
47a468bd JW |
6928 | : __and_< |
6929 | is_nothrow_move_constructible<std::basic_string<_Tp, _Traits, _Alloc>>, | |
6930 | is_nothrow_move_assignable<std::basic_string<_Tp, _Traits, _Alloc>> | |
6931 | >::type | |
10f26de9 JW |
6932 | { }; |
6933 | } // namespace __detail::__variant | |
6934 | #endif // C++17 | |
6935 | #endif // C++14 | |
1c9f675f | 6936 | |
4a15d842 | 6937 | _GLIBCXX_END_NAMESPACE_VERSION |
1c9f675f ESR |
6938 | } // namespace std |
6939 | ||
734f5023 | 6940 | #endif // C++11 |
a5a6b586 | 6941 | |
3d7c150e | 6942 | #endif /* _BASIC_STRING_H */ |