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725dc051 BK |
1 | // Components for manipulating sequences of characters -*- C++ -*- |
2 | ||
99dee823 | 3 | // Copyright (C) 1997-2021 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 | ||
7b527614 JW |
51 | #if ! _GLIBCXX_USE_CXX11_ABI |
52 | # include "cow_string.h" | |
53 | #else | |
12ffa228 BK |
54 | namespace std _GLIBCXX_VISIBILITY(default) |
55 | { | |
56 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
7b527614 | 57 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 |
3cbc7af0 | 58 | |
b376b1ef | 59 | #ifdef __cpp_lib_is_constant_evaluated |
b96e2ff9 ML |
60 | // Support P0980R1 in C++20. |
61 | # define __cpp_lib_constexpr_string 201907L | |
b376b1ef | 62 | #elif __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED |
3da80ed7 JW |
63 | // Support P0426R1 changes to char_traits in C++17. |
64 | # define __cpp_lib_constexpr_string 201611L | |
3da80ed7 JW |
65 | #endif |
66 | ||
34a2b755 JW |
67 | /** |
68 | * @class basic_string basic_string.h <string> | |
69 | * @brief Managing sequences of characters and character-like objects. | |
70 | * | |
71 | * @ingroup strings | |
72 | * @ingroup sequences | |
73 | * | |
74 | * @tparam _CharT Type of character | |
75 | * @tparam _Traits Traits for character type, defaults to | |
76 | * char_traits<_CharT>. | |
77 | * @tparam _Alloc Allocator type, defaults to allocator<_CharT>. | |
78 | * | |
79 | * Meets the requirements of a <a href="tables.html#65">container</a>, a | |
80 | * <a href="tables.html#66">reversible container</a>, and a | |
81 | * <a href="tables.html#67">sequence</a>. Of the | |
82 | * <a href="tables.html#68">optional sequence requirements</a>, only | |
83 | * @c push_back, @c at, and @c %array access are supported. | |
84 | */ | |
85 | template<typename _CharT, typename _Traits, typename _Alloc> | |
86 | class basic_string | |
87 | { | |
88 | typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template | |
89 | rebind<_CharT>::other _Char_alloc_type; | |
90 | typedef __gnu_cxx::__alloc_traits<_Char_alloc_type> _Alloc_traits; | |
91 | ||
92 | // Types: | |
93 | public: | |
94 | typedef _Traits traits_type; | |
95 | typedef typename _Traits::char_type value_type; | |
96 | typedef _Char_alloc_type allocator_type; | |
97 | typedef typename _Alloc_traits::size_type size_type; | |
98 | typedef typename _Alloc_traits::difference_type difference_type; | |
99 | typedef typename _Alloc_traits::reference reference; | |
100 | typedef typename _Alloc_traits::const_reference const_reference; | |
101 | typedef typename _Alloc_traits::pointer pointer; | |
102 | typedef typename _Alloc_traits::const_pointer const_pointer; | |
103 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; | |
104 | typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> | |
105 | const_iterator; | |
106 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; | |
107 | typedef std::reverse_iterator<iterator> reverse_iterator; | |
108 | ||
109 | /// Value returned by various member functions when they fail. | |
110 | static const size_type npos = static_cast<size_type>(-1); | |
111 | ||
3eb1eda1 | 112 | protected: |
34a2b755 JW |
113 | // type used for positions in insert, erase etc. |
114 | #if __cplusplus < 201103L | |
115 | typedef iterator __const_iterator; | |
116 | #else | |
117 | typedef const_iterator __const_iterator; | |
118 | #endif | |
119 | ||
3eb1eda1 | 120 | private: |
1a289fa3 | 121 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
122 | // A helper type for avoiding boiler-plate. |
123 | typedef basic_string_view<_CharT, _Traits> __sv_type; | |
92daf2de JW |
124 | |
125 | template<typename _Tp, typename _Res> | |
126 | using _If_sv = enable_if_t< | |
127 | __and_<is_convertible<const _Tp&, __sv_type>, | |
4cf5930f | 128 | __not_<is_convertible<const _Tp*, const basic_string*>>, |
92daf2de JW |
129 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, |
130 | _Res>; | |
df66af3b DK |
131 | |
132 | // Allows an implicit conversion to __sv_type. | |
b96e2ff9 | 133 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
134 | static __sv_type |
135 | _S_to_string_view(__sv_type __svt) noexcept | |
136 | { return __svt; } | |
137 | ||
138 | // Wraps a string_view by explicit conversion and thus | |
139 | // allows to add an internal constructor that does not | |
140 | // participate in overload resolution when a string_view | |
141 | // is provided. | |
142 | struct __sv_wrapper | |
143 | { | |
b96e2ff9 ML |
144 | _GLIBCXX20_CONSTEXPR explicit |
145 | __sv_wrapper(__sv_type __sv) noexcept : _M_sv(__sv) { } | |
146 | ||
df66af3b DK |
147 | __sv_type _M_sv; |
148 | }; | |
1a289fa3 JW |
149 | |
150 | /** | |
151 | * @brief Only internally used: Construct string from a string view | |
152 | * wrapper. | |
153 | * @param __svw string view wrapper. | |
154 | * @param __a Allocator to use. | |
155 | */ | |
b96e2ff9 | 156 | _GLIBCXX20_CONSTEXPR |
1a289fa3 JW |
157 | explicit |
158 | basic_string(__sv_wrapper __svw, const _Alloc& __a) | |
159 | : basic_string(__svw._M_sv.data(), __svw._M_sv.size(), __a) { } | |
ca8f2cb1 VV |
160 | #endif |
161 | ||
34a2b755 JW |
162 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html |
163 | struct _Alloc_hider : allocator_type // TODO check __is_final | |
164 | { | |
8cab3d18 | 165 | #if __cplusplus < 201103L |
34a2b755 JW |
166 | _Alloc_hider(pointer __dat, const _Alloc& __a = _Alloc()) |
167 | : allocator_type(__a), _M_p(__dat) { } | |
8cab3d18 | 168 | #else |
b96e2ff9 | 169 | _GLIBCXX20_CONSTEXPR |
8cab3d18 JW |
170 | _Alloc_hider(pointer __dat, const _Alloc& __a) |
171 | : allocator_type(__a), _M_p(__dat) { } | |
172 | ||
b96e2ff9 | 173 | _GLIBCXX20_CONSTEXPR |
8cab3d18 JW |
174 | _Alloc_hider(pointer __dat, _Alloc&& __a = _Alloc()) |
175 | : allocator_type(std::move(__a)), _M_p(__dat) { } | |
176 | #endif | |
34a2b755 JW |
177 | |
178 | pointer _M_p; // The actual data. | |
179 | }; | |
180 | ||
181 | _Alloc_hider _M_dataplus; | |
182 | size_type _M_string_length; | |
183 | ||
59aa28e8 | 184 | enum { _S_local_capacity = 15 / sizeof(_CharT) }; |
34a2b755 JW |
185 | |
186 | union | |
187 | { | |
188 | _CharT _M_local_buf[_S_local_capacity + 1]; | |
189 | size_type _M_allocated_capacity; | |
190 | }; | |
191 | ||
b96e2ff9 | 192 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
193 | void |
194 | _M_data(pointer __p) | |
195 | { _M_dataplus._M_p = __p; } | |
196 | ||
b96e2ff9 | 197 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
198 | void |
199 | _M_length(size_type __length) | |
200 | { _M_string_length = __length; } | |
201 | ||
b96e2ff9 | 202 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
203 | pointer |
204 | _M_data() const | |
205 | { return _M_dataplus._M_p; } | |
206 | ||
b96e2ff9 | 207 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
208 | pointer |
209 | _M_local_data() | |
210 | { | |
211 | #if __cplusplus >= 201103L | |
212 | return std::pointer_traits<pointer>::pointer_to(*_M_local_buf); | |
213 | #else | |
214 | return pointer(_M_local_buf); | |
215 | #endif | |
216 | } | |
217 | ||
b96e2ff9 | 218 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
219 | const_pointer |
220 | _M_local_data() const | |
221 | { | |
222 | #if __cplusplus >= 201103L | |
223 | return std::pointer_traits<const_pointer>::pointer_to(*_M_local_buf); | |
224 | #else | |
225 | return const_pointer(_M_local_buf); | |
226 | #endif | |
227 | } | |
228 | ||
b96e2ff9 | 229 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
230 | void |
231 | _M_capacity(size_type __capacity) | |
232 | { _M_allocated_capacity = __capacity; } | |
233 | ||
b96e2ff9 | 234 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
235 | void |
236 | _M_set_length(size_type __n) | |
237 | { | |
238 | _M_length(__n); | |
239 | traits_type::assign(_M_data()[__n], _CharT()); | |
240 | } | |
241 | ||
b96e2ff9 | 242 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
243 | bool |
244 | _M_is_local() const | |
245 | { return _M_data() == _M_local_data(); } | |
246 | ||
247 | // Create & Destroy | |
b96e2ff9 | 248 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
249 | pointer |
250 | _M_create(size_type&, size_type); | |
251 | ||
b96e2ff9 | 252 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
253 | void |
254 | _M_dispose() | |
255 | { | |
256 | if (!_M_is_local()) | |
257 | _M_destroy(_M_allocated_capacity); | |
258 | } | |
259 | ||
b96e2ff9 | 260 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
261 | void |
262 | _M_destroy(size_type __size) throw() | |
263 | { _Alloc_traits::deallocate(_M_get_allocator(), _M_data(), __size + 1); } | |
264 | ||
265 | // _M_construct_aux is used to implement the 21.3.1 para 15 which | |
266 | // requires special behaviour if _InIterator is an integral type | |
267 | template<typename _InIterator> | |
b96e2ff9 | 268 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
269 | void |
270 | _M_construct_aux(_InIterator __beg, _InIterator __end, | |
271 | std::__false_type) | |
272 | { | |
273 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; | |
274 | _M_construct(__beg, __end, _Tag()); | |
275 | } | |
276 | ||
277 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
278 | // 438. Ambiguity in the "do the right thing" clause | |
279 | template<typename _Integer> | |
b96e2ff9 | 280 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
281 | void |
282 | _M_construct_aux(_Integer __beg, _Integer __end, std::__true_type) | |
283 | { _M_construct_aux_2(static_cast<size_type>(__beg), __end); } | |
284 | ||
b96e2ff9 | 285 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
286 | void |
287 | _M_construct_aux_2(size_type __req, _CharT __c) | |
288 | { _M_construct(__req, __c); } | |
289 | ||
290 | template<typename _InIterator> | |
b96e2ff9 | 291 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
292 | void |
293 | _M_construct(_InIterator __beg, _InIterator __end) | |
294 | { | |
295 | typedef typename std::__is_integer<_InIterator>::__type _Integral; | |
296 | _M_construct_aux(__beg, __end, _Integral()); | |
297 | } | |
298 | ||
299 | // For Input Iterators, used in istreambuf_iterators, etc. | |
300 | template<typename _InIterator> | |
b96e2ff9 | 301 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
302 | void |
303 | _M_construct(_InIterator __beg, _InIterator __end, | |
304 | std::input_iterator_tag); | |
305 | ||
306 | // For forward_iterators up to random_access_iterators, used for | |
307 | // string::iterator, _CharT*, etc. | |
308 | template<typename _FwdIterator> | |
b96e2ff9 | 309 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
310 | void |
311 | _M_construct(_FwdIterator __beg, _FwdIterator __end, | |
312 | std::forward_iterator_tag); | |
313 | ||
b96e2ff9 | 314 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
315 | void |
316 | _M_construct(size_type __req, _CharT __c); | |
317 | ||
b96e2ff9 | 318 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
319 | allocator_type& |
320 | _M_get_allocator() | |
321 | { return _M_dataplus; } | |
322 | ||
b96e2ff9 | 323 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
324 | const allocator_type& |
325 | _M_get_allocator() const | |
326 | { return _M_dataplus; } | |
327 | ||
328 | private: | |
329 | ||
330 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
331 | // The explicit instantiations in misc-inst.cc require this due to | |
332 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64063 | |
333 | template<typename _Tp, bool _Requires = | |
334 | !__are_same<_Tp, _CharT*>::__value | |
335 | && !__are_same<_Tp, const _CharT*>::__value | |
336 | && !__are_same<_Tp, iterator>::__value | |
337 | && !__are_same<_Tp, const_iterator>::__value> | |
338 | struct __enable_if_not_native_iterator | |
339 | { typedef basic_string& __type; }; | |
340 | template<typename _Tp> | |
341 | struct __enable_if_not_native_iterator<_Tp, false> { }; | |
342 | #endif | |
343 | ||
b96e2ff9 | 344 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
345 | size_type |
346 | _M_check(size_type __pos, const char* __s) const | |
347 | { | |
348 | if (__pos > this->size()) | |
349 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > " | |
350 | "this->size() (which is %zu)"), | |
351 | __s, __pos, this->size()); | |
352 | return __pos; | |
353 | } | |
354 | ||
b96e2ff9 | 355 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
356 | void |
357 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const | |
358 | { | |
359 | if (this->max_size() - (this->size() - __n1) < __n2) | |
360 | __throw_length_error(__N(__s)); | |
361 | } | |
362 | ||
363 | ||
364 | // NB: _M_limit doesn't check for a bad __pos value. | |
b96e2ff9 | 365 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
366 | size_type |
367 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT | |
368 | { | |
369 | const bool __testoff = __off < this->size() - __pos; | |
370 | return __testoff ? __off : this->size() - __pos; | |
371 | } | |
372 | ||
373 | // True if _Rep and source do not overlap. | |
374 | bool | |
375 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT | |
376 | { | |
2d60da10 JW |
377 | return (less<const _CharT*>()(__s, _M_data()) |
378 | || less<const _CharT*>()(_M_data() + this->size(), __s)); | |
34a2b755 JW |
379 | } |
380 | ||
381 | // When __n = 1 way faster than the general multichar | |
382 | // traits_type::copy/move/assign. | |
b96e2ff9 | 383 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
384 | static void |
385 | _S_copy(_CharT* __d, const _CharT* __s, size_type __n) | |
386 | { | |
387 | if (__n == 1) | |
388 | traits_type::assign(*__d, *__s); | |
389 | else | |
390 | traits_type::copy(__d, __s, __n); | |
391 | } | |
392 | ||
b96e2ff9 | 393 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
394 | static void |
395 | _S_move(_CharT* __d, const _CharT* __s, size_type __n) | |
396 | { | |
397 | if (__n == 1) | |
398 | traits_type::assign(*__d, *__s); | |
399 | else | |
400 | traits_type::move(__d, __s, __n); | |
401 | } | |
402 | ||
b96e2ff9 | 403 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
404 | static void |
405 | _S_assign(_CharT* __d, size_type __n, _CharT __c) | |
406 | { | |
407 | if (__n == 1) | |
408 | traits_type::assign(*__d, __c); | |
409 | else | |
410 | traits_type::assign(__d, __n, __c); | |
411 | } | |
412 | ||
413 | // _S_copy_chars is a separate template to permit specialization | |
414 | // to optimize for the common case of pointers as iterators. | |
415 | template<class _Iterator> | |
b96e2ff9 | 416 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
417 | static void |
418 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) | |
34a2b755 | 419 | { |
f970a17d | 420 | for (; __k1 != __k2; ++__k1, (void)++__p) |
34a2b755 JW |
421 | traits_type::assign(*__p, *__k1); // These types are off. |
422 | } | |
423 | ||
b96e2ff9 | 424 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
425 | static void |
426 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPT | |
427 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
428 | ||
b96e2ff9 | 429 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
430 | static void |
431 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) | |
432 | _GLIBCXX_NOEXCEPT | |
433 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
434 | ||
b96e2ff9 | 435 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
436 | static void |
437 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPT | |
438 | { _S_copy(__p, __k1, __k2 - __k1); } | |
439 | ||
b96e2ff9 | 440 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
441 | static void |
442 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) | |
443 | _GLIBCXX_NOEXCEPT | |
444 | { _S_copy(__p, __k1, __k2 - __k1); } | |
445 | ||
b96e2ff9 | 446 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
447 | static int |
448 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPT | |
449 | { | |
450 | const difference_type __d = difference_type(__n1 - __n2); | |
451 | ||
452 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) | |
453 | return __gnu_cxx::__numeric_traits<int>::__max; | |
454 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) | |
455 | return __gnu_cxx::__numeric_traits<int>::__min; | |
456 | else | |
457 | return int(__d); | |
458 | } | |
459 | ||
b96e2ff9 | 460 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 461 | void |
a7d47f35 | 462 | _M_assign(const basic_string&); |
34a2b755 | 463 | |
b96e2ff9 | 464 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
465 | void |
466 | _M_mutate(size_type __pos, size_type __len1, const _CharT* __s, | |
467 | size_type __len2); | |
468 | ||
b96e2ff9 | 469 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
470 | void |
471 | _M_erase(size_type __pos, size_type __n); | |
472 | ||
473 | public: | |
474 | // Construct/copy/destroy: | |
475 | // NB: We overload ctors in some cases instead of using default | |
476 | // arguments, per 17.4.4.4 para. 2 item 2. | |
477 | ||
478 | /** | |
479 | * @brief Default constructor creates an empty string. | |
480 | */ | |
b96e2ff9 | 481 | _GLIBCXX20_CONSTEXPR |
bcb896ab | 482 | basic_string() |
5caff414 | 483 | _GLIBCXX_NOEXCEPT_IF(is_nothrow_default_constructible<_Alloc>::value) |
34a2b755 JW |
484 | : _M_dataplus(_M_local_data()) |
485 | { _M_set_length(0); } | |
486 | ||
487 | /** | |
488 | * @brief Construct an empty string using allocator @a a. | |
489 | */ | |
b96e2ff9 | 490 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 491 | explicit |
5caff414 | 492 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPT |
34a2b755 JW |
493 | : _M_dataplus(_M_local_data(), __a) |
494 | { _M_set_length(0); } | |
495 | ||
496 | /** | |
497 | * @brief Construct string with copy of value of @a __str. | |
498 | * @param __str Source string. | |
499 | */ | |
b96e2ff9 | 500 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 501 | basic_string(const basic_string& __str) |
5caff414 JW |
502 | : _M_dataplus(_M_local_data(), |
503 | _Alloc_traits::_S_select_on_copy(__str._M_get_allocator())) | |
34a2b755 JW |
504 | { _M_construct(__str._M_data(), __str._M_data() + __str.length()); } |
505 | ||
86bbf15b JW |
506 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
507 | // 2583. no way to supply an allocator for basic_string(str, pos) | |
34a2b755 JW |
508 | /** |
509 | * @brief Construct string as copy of a substring. | |
510 | * @param __str Source string. | |
511 | * @param __pos Index of first character to copy from. | |
86bbf15b | 512 | * @param __a Allocator to use. |
34a2b755 | 513 | */ |
b96e2ff9 | 514 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 515 | basic_string(const basic_string& __str, size_type __pos, |
86bbf15b JW |
516 | const _Alloc& __a = _Alloc()) |
517 | : _M_dataplus(_M_local_data(), __a) | |
518 | { | |
519 | const _CharT* __start = __str._M_data() | |
520 | + __str._M_check(__pos, "basic_string::basic_string"); | |
521 | _M_construct(__start, __start + __str._M_limit(__pos, npos)); | |
522 | } | |
523 | ||
524 | /** | |
525 | * @brief Construct string as copy of a substring. | |
526 | * @param __str Source string. | |
527 | * @param __pos Index of first character to copy from. | |
528 | * @param __n Number of characters to copy. | |
529 | */ | |
b96e2ff9 | 530 | _GLIBCXX20_CONSTEXPR |
86bbf15b JW |
531 | basic_string(const basic_string& __str, size_type __pos, |
532 | size_type __n) | |
34a2b755 JW |
533 | : _M_dataplus(_M_local_data()) |
534 | { | |
2d60da10 | 535 | const _CharT* __start = __str._M_data() |
34a2b755 JW |
536 | + __str._M_check(__pos, "basic_string::basic_string"); |
537 | _M_construct(__start, __start + __str._M_limit(__pos, __n)); | |
538 | } | |
539 | ||
540 | /** | |
541 | * @brief Construct string as copy of a substring. | |
542 | * @param __str Source string. | |
543 | * @param __pos Index of first character to copy from. | |
86bbf15b | 544 | * @param __n Number of characters to copy. |
34a2b755 JW |
545 | * @param __a Allocator to use. |
546 | */ | |
b96e2ff9 | 547 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
548 | basic_string(const basic_string& __str, size_type __pos, |
549 | size_type __n, const _Alloc& __a) | |
550 | : _M_dataplus(_M_local_data(), __a) | |
551 | { | |
2d60da10 JW |
552 | const _CharT* __start |
553 | = __str._M_data() + __str._M_check(__pos, "string::string"); | |
34a2b755 JW |
554 | _M_construct(__start, __start + __str._M_limit(__pos, __n)); |
555 | } | |
556 | ||
557 | /** | |
558 | * @brief Construct string initialized by a character %array. | |
559 | * @param __s Source character %array. | |
560 | * @param __n Number of characters to copy. | |
561 | * @param __a Allocator to use (default is default allocator). | |
562 | * | |
563 | * NB: @a __s must have at least @a __n characters, '\\0' | |
564 | * has no special meaning. | |
565 | */ | |
b96e2ff9 | 566 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
567 | basic_string(const _CharT* __s, size_type __n, |
568 | const _Alloc& __a = _Alloc()) | |
569 | : _M_dataplus(_M_local_data(), __a) | |
570 | { _M_construct(__s, __s + __n); } | |
571 | ||
572 | /** | |
573 | * @brief Construct string as copy of a C string. | |
574 | * @param __s Source C string. | |
575 | * @param __a Allocator to use (default is default allocator). | |
576 | */ | |
5d84e6c5 JW |
577 | #if __cpp_deduction_guides && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
578 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
579 | // 3076. basic_string CTAD ambiguity | |
580 | template<typename = _RequireAllocator<_Alloc>> | |
581 | #endif | |
b96e2ff9 | 582 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
583 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()) |
584 | : _M_dataplus(_M_local_data(), __a) | |
789c57bc JW |
585 | { |
586 | const _CharT* __end = __s ? __s + traits_type::length(__s) | |
587 | // We just need a non-null pointer here to get an exception: | |
588 | : reinterpret_cast<const _CharT*>(__alignof__(_CharT)); | |
589 | _M_construct(__s, __end, random_access_iterator_tag()); | |
590 | } | |
34a2b755 JW |
591 | |
592 | /** | |
593 | * @brief Construct string as multiple characters. | |
594 | * @param __n Number of characters. | |
595 | * @param __c Character to use. | |
596 | * @param __a Allocator to use (default is default allocator). | |
597 | */ | |
5d84e6c5 JW |
598 | #if __cpp_deduction_guides && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
599 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
600 | // 3076. basic_string CTAD ambiguity | |
601 | template<typename = _RequireAllocator<_Alloc>> | |
602 | #endif | |
b96e2ff9 | 603 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
604 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()) |
605 | : _M_dataplus(_M_local_data(), __a) | |
606 | { _M_construct(__n, __c); } | |
607 | ||
608 | #if __cplusplus >= 201103L | |
609 | /** | |
610 | * @brief Move construct string. | |
611 | * @param __str Source string. | |
612 | * | |
613 | * The newly-created string contains the exact contents of @a __str. | |
614 | * @a __str is a valid, but unspecified string. | |
252c9967 | 615 | */ |
b96e2ff9 | 616 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
617 | basic_string(basic_string&& __str) noexcept |
618 | : _M_dataplus(_M_local_data(), std::move(__str._M_get_allocator())) | |
619 | { | |
620 | if (__str._M_is_local()) | |
621 | { | |
faa7d78e | 622 | traits_type::copy(_M_local_buf, __str._M_local_buf, |
b96e2ff9 | 623 | __str.length() + 1); |
34a2b755 JW |
624 | } |
625 | else | |
626 | { | |
627 | _M_data(__str._M_data()); | |
628 | _M_capacity(__str._M_allocated_capacity); | |
629 | } | |
630 | ||
631 | // Must use _M_length() here not _M_set_length() because | |
632 | // basic_stringbuf relies on writing into unallocated capacity so | |
633 | // we mess up the contents if we put a '\0' in the string. | |
634 | _M_length(__str.length()); | |
635 | __str._M_data(__str._M_local_data()); | |
636 | __str._M_set_length(0); | |
637 | } | |
638 | ||
639 | /** | |
640 | * @brief Construct string from an initializer %list. | |
641 | * @param __l std::initializer_list of characters. | |
642 | * @param __a Allocator to use (default is default allocator). | |
643 | */ | |
b96e2ff9 | 644 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
645 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()) |
646 | : _M_dataplus(_M_local_data(), __a) | |
647 | { _M_construct(__l.begin(), __l.end()); } | |
648 | ||
b96e2ff9 | 649 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
650 | basic_string(const basic_string& __str, const _Alloc& __a) |
651 | : _M_dataplus(_M_local_data(), __a) | |
652 | { _M_construct(__str.begin(), __str.end()); } | |
653 | ||
b96e2ff9 | 654 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 655 | basic_string(basic_string&& __str, const _Alloc& __a) |
5caff414 | 656 | noexcept(_Alloc_traits::_S_always_equal()) |
34a2b755 JW |
657 | : _M_dataplus(_M_local_data(), __a) |
658 | { | |
5caff414 JW |
659 | if (__str._M_is_local()) |
660 | { | |
661 | traits_type::copy(_M_local_buf, __str._M_local_buf, | |
b96e2ff9 | 662 | __str.length() + 1); |
5caff414 JW |
663 | _M_length(__str.length()); |
664 | __str._M_set_length(0); | |
665 | } | |
666 | else if (_Alloc_traits::_S_always_equal() | |
667 | || __str.get_allocator() == __a) | |
668 | { | |
669 | _M_data(__str._M_data()); | |
670 | _M_length(__str.length()); | |
671 | _M_capacity(__str._M_allocated_capacity); | |
672 | __str._M_data(__str._M_local_buf); | |
673 | __str._M_set_length(0); | |
674 | } | |
34a2b755 JW |
675 | else |
676 | _M_construct(__str.begin(), __str.end()); | |
677 | } | |
678 | ||
cf876562 JW |
679 | basic_string(nullptr_t) = delete; |
680 | basic_string& operator=(nullptr_t) = delete; | |
34a2b755 JW |
681 | #endif // C++11 |
682 | ||
683 | /** | |
684 | * @brief Construct string as copy of a range. | |
685 | * @param __beg Start of range. | |
686 | * @param __end End of range. | |
687 | * @param __a Allocator to use (default is default allocator). | |
688 | */ | |
689 | #if __cplusplus >= 201103L | |
690 | template<typename _InputIterator, | |
691 | typename = std::_RequireInputIter<_InputIterator>> | |
692 | #else | |
693 | template<typename _InputIterator> | |
694 | #endif | |
b96e2ff9 | 695 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
696 | basic_string(_InputIterator __beg, _InputIterator __end, |
697 | const _Alloc& __a = _Alloc()) | |
698 | : _M_dataplus(_M_local_data(), __a) | |
699 | { _M_construct(__beg, __end); } | |
700 | ||
1a289fa3 | 701 | #if __cplusplus >= 201703L |
bf56b0b8 JW |
702 | /** |
703 | * @brief Construct string from a substring of a string_view. | |
df66af3b | 704 | * @param __t Source object convertible to string view. |
bf56b0b8 JW |
705 | * @param __pos The index of the first character to copy from __t. |
706 | * @param __n The number of characters to copy from __t. | |
707 | * @param __a Allocator to use. | |
708 | */ | |
3663671a | 709 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
b96e2ff9 | 710 | _GLIBCXX20_CONSTEXPR |
bf56b0b8 JW |
711 | basic_string(const _Tp& __t, size_type __pos, size_type __n, |
712 | const _Alloc& __a = _Alloc()) | |
df66af3b | 713 | : basic_string(_S_to_string_view(__t).substr(__pos, __n), __a) { } |
bf56b0b8 | 714 | |
ca8f2cb1 VV |
715 | /** |
716 | * @brief Construct string from a string_view. | |
df66af3b | 717 | * @param __t Source object convertible to string view. |
ca8f2cb1 VV |
718 | * @param __a Allocator to use (default is default allocator). |
719 | */ | |
df66af3b | 720 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
b96e2ff9 | 721 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
722 | explicit |
723 | basic_string(const _Tp& __t, const _Alloc& __a = _Alloc()) | |
724 | : basic_string(__sv_wrapper(_S_to_string_view(__t)), __a) { } | |
ca8f2cb1 VV |
725 | #endif // C++17 |
726 | ||
34a2b755 JW |
727 | /** |
728 | * @brief Destroy the string instance. | |
729 | */ | |
b96e2ff9 | 730 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
731 | ~basic_string() |
732 | { _M_dispose(); } | |
733 | ||
734 | /** | |
735 | * @brief Assign the value of @a str to this string. | |
736 | * @param __str Source string. | |
737 | */ | |
b96e2ff9 | 738 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
739 | basic_string& |
740 | operator=(const basic_string& __str) | |
5caff414 | 741 | { |
11d10beb | 742 | return this->assign(__str); |
5caff414 | 743 | } |
34a2b755 JW |
744 | |
745 | /** | |
746 | * @brief Copy contents of @a s into this string. | |
747 | * @param __s Source null-terminated string. | |
748 | */ | |
b96e2ff9 | 749 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
750 | basic_string& |
751 | operator=(const _CharT* __s) | |
752 | { return this->assign(__s); } | |
753 | ||
754 | /** | |
755 | * @brief Set value to string of length 1. | |
756 | * @param __c Source character. | |
757 | * | |
758 | * Assigning to a character makes this string length 1 and | |
759 | * (*this)[0] == @a c. | |
760 | */ | |
b96e2ff9 | 761 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
762 | basic_string& |
763 | operator=(_CharT __c) | |
764 | { | |
765 | this->assign(1, __c); | |
766 | return *this; | |
767 | } | |
768 | ||
769 | #if __cplusplus >= 201103L | |
770 | /** | |
771 | * @brief Move assign the value of @a str to this string. | |
772 | * @param __str Source string. | |
773 | * | |
774 | * The contents of @a str are moved into this string (without copying). | |
775 | * @a str is a valid, but unspecified string. | |
252c9967 | 776 | */ |
34a2b755 JW |
777 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
778 | // 2063. Contradictory requirements for string move assignment | |
b96e2ff9 | 779 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
780 | basic_string& |
781 | operator=(basic_string&& __str) | |
5caff414 | 782 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 | 783 | { |
5caff414 JW |
784 | if (!_M_is_local() && _Alloc_traits::_S_propagate_on_move_assign() |
785 | && !_Alloc_traits::_S_always_equal() | |
786 | && _M_get_allocator() != __str._M_get_allocator()) | |
787 | { | |
788 | // Destroy existing storage before replacing allocator. | |
789 | _M_destroy(_M_allocated_capacity); | |
790 | _M_data(_M_local_data()); | |
791 | _M_set_length(0); | |
792 | } | |
793 | // Replace allocator if POCMA is true. | |
794 | std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator()); | |
795 | ||
71e09389 JW |
796 | if (__str._M_is_local()) |
797 | { | |
c2fb0a1a JW |
798 | // We've always got room for a short string, just copy it |
799 | // (unless this is a self-move, because that would violate the | |
800 | // char_traits::copy precondition that the ranges don't overlap). | |
801 | if (__builtin_expect(std::__addressof(__str) != this, true)) | |
802 | { | |
803 | if (__str.size()) | |
804 | this->_S_copy(_M_data(), __str._M_data(), __str.size()); | |
805 | _M_set_length(__str.size()); | |
806 | } | |
71e09389 JW |
807 | } |
808 | else if (_Alloc_traits::_S_propagate_on_move_assign() | |
809 | || _Alloc_traits::_S_always_equal() | |
810 | || _M_get_allocator() == __str._M_get_allocator()) | |
5caff414 | 811 | { |
71e09389 | 812 | // Just move the allocated pointer, our allocator can free it. |
5caff414 JW |
813 | pointer __data = nullptr; |
814 | size_type __capacity; | |
815 | if (!_M_is_local()) | |
816 | { | |
817 | if (_Alloc_traits::_S_always_equal()) | |
818 | { | |
71e09389 | 819 | // __str can reuse our existing storage. |
5caff414 JW |
820 | __data = _M_data(); |
821 | __capacity = _M_allocated_capacity; | |
822 | } | |
71e09389 | 823 | else // __str can't use it, so free it. |
5caff414 JW |
824 | _M_destroy(_M_allocated_capacity); |
825 | } | |
826 | ||
827 | _M_data(__str._M_data()); | |
828 | _M_length(__str.length()); | |
829 | _M_capacity(__str._M_allocated_capacity); | |
830 | if (__data) | |
831 | { | |
832 | __str._M_data(__data); | |
833 | __str._M_capacity(__capacity); | |
834 | } | |
835 | else | |
836 | __str._M_data(__str._M_local_buf); | |
837 | } | |
71e09389 JW |
838 | else // Need to do a deep copy |
839 | assign(__str); | |
5caff414 | 840 | __str.clear(); |
34a2b755 JW |
841 | return *this; |
842 | } | |
843 | ||
844 | /** | |
845 | * @brief Set value to string constructed from initializer %list. | |
846 | * @param __l std::initializer_list. | |
847 | */ | |
b96e2ff9 | 848 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
849 | basic_string& |
850 | operator=(initializer_list<_CharT> __l) | |
851 | { | |
852 | this->assign(__l.begin(), __l.size()); | |
853 | return *this; | |
854 | } | |
855 | #endif // C++11 | |
856 | ||
1a289fa3 | 857 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
858 | /** |
859 | * @brief Set value to string constructed from a string_view. | |
df66af3b | 860 | * @param __svt An object convertible to string_view. |
ca8f2cb1 | 861 | */ |
df66af3b | 862 | template<typename _Tp> |
b96e2ff9 | 863 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
864 | _If_sv<_Tp, basic_string&> |
865 | operator=(const _Tp& __svt) | |
866 | { return this->assign(__svt); } | |
ca8f2cb1 VV |
867 | |
868 | /** | |
869 | * @brief Convert to a string_view. | |
870 | * @return A string_view. | |
871 | */ | |
b96e2ff9 | 872 | _GLIBCXX20_CONSTEXPR |
ca8f2cb1 | 873 | operator __sv_type() const noexcept |
df66af3b | 874 | { return __sv_type(data(), size()); } |
ca8f2cb1 VV |
875 | #endif // C++17 |
876 | ||
34a2b755 JW |
877 | // Iterators: |
878 | /** | |
879 | * Returns a read/write iterator that points to the first character in | |
880 | * the %string. | |
881 | */ | |
b96e2ff9 | 882 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
883 | iterator |
884 | begin() _GLIBCXX_NOEXCEPT | |
885 | { return iterator(_M_data()); } | |
886 | ||
887 | /** | |
888 | * Returns a read-only (constant) iterator that points to the first | |
889 | * character in the %string. | |
890 | */ | |
b96e2ff9 | 891 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
892 | const_iterator |
893 | begin() const _GLIBCXX_NOEXCEPT | |
894 | { return const_iterator(_M_data()); } | |
895 | ||
896 | /** | |
897 | * Returns a read/write iterator that points one past the last | |
898 | * character in the %string. | |
899 | */ | |
b96e2ff9 | 900 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
901 | iterator |
902 | end() _GLIBCXX_NOEXCEPT | |
903 | { return iterator(_M_data() + this->size()); } | |
904 | ||
905 | /** | |
906 | * Returns a read-only (constant) iterator that points one past the | |
907 | * last character in the %string. | |
908 | */ | |
b96e2ff9 | 909 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
910 | const_iterator |
911 | end() const _GLIBCXX_NOEXCEPT | |
912 | { return const_iterator(_M_data() + this->size()); } | |
913 | ||
914 | /** | |
915 | * Returns a read/write reverse iterator that points to the last | |
916 | * character in the %string. Iteration is done in reverse element | |
917 | * order. | |
918 | */ | |
b96e2ff9 | 919 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
920 | reverse_iterator |
921 | rbegin() _GLIBCXX_NOEXCEPT | |
922 | { return reverse_iterator(this->end()); } | |
923 | ||
924 | /** | |
925 | * Returns a read-only (constant) reverse iterator that points | |
926 | * to the last character in the %string. Iteration is done in | |
927 | * reverse element order. | |
928 | */ | |
b96e2ff9 | 929 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
930 | const_reverse_iterator |
931 | rbegin() const _GLIBCXX_NOEXCEPT | |
932 | { return const_reverse_iterator(this->end()); } | |
933 | ||
934 | /** | |
935 | * Returns a read/write reverse iterator that points to one before the | |
936 | * first character in the %string. Iteration is done in reverse | |
937 | * element order. | |
938 | */ | |
b96e2ff9 | 939 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
940 | reverse_iterator |
941 | rend() _GLIBCXX_NOEXCEPT | |
942 | { return reverse_iterator(this->begin()); } | |
943 | ||
944 | /** | |
945 | * Returns a read-only (constant) reverse iterator that points | |
946 | * to one before the first character in the %string. Iteration | |
947 | * is done in reverse element order. | |
948 | */ | |
b96e2ff9 | 949 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
950 | const_reverse_iterator |
951 | rend() const _GLIBCXX_NOEXCEPT | |
952 | { return const_reverse_iterator(this->begin()); } | |
953 | ||
954 | #if __cplusplus >= 201103L | |
955 | /** | |
956 | * Returns a read-only (constant) iterator that points to the first | |
957 | * character in the %string. | |
958 | */ | |
b96e2ff9 | 959 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
960 | const_iterator |
961 | cbegin() const noexcept | |
962 | { return const_iterator(this->_M_data()); } | |
963 | ||
964 | /** | |
965 | * Returns a read-only (constant) iterator that points one past the | |
966 | * last character in the %string. | |
967 | */ | |
b96e2ff9 | 968 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
969 | const_iterator |
970 | cend() const noexcept | |
971 | { return const_iterator(this->_M_data() + this->size()); } | |
972 | ||
973 | /** | |
974 | * Returns a read-only (constant) reverse iterator that points | |
975 | * to the last character in the %string. Iteration is done in | |
976 | * reverse element order. | |
977 | */ | |
b96e2ff9 | 978 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
979 | const_reverse_iterator |
980 | crbegin() const noexcept | |
981 | { return const_reverse_iterator(this->end()); } | |
982 | ||
983 | /** | |
984 | * Returns a read-only (constant) reverse iterator that points | |
985 | * to one before the first character in the %string. Iteration | |
986 | * is done in reverse element order. | |
987 | */ | |
b96e2ff9 | 988 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
989 | const_reverse_iterator |
990 | crend() const noexcept | |
991 | { return const_reverse_iterator(this->begin()); } | |
992 | #endif | |
993 | ||
994 | public: | |
995 | // Capacity: | |
996 | /// Returns the number of characters in the string, not including any | |
997 | /// null-termination. | |
b96e2ff9 | 998 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
999 | size_type |
1000 | size() const _GLIBCXX_NOEXCEPT | |
1001 | { return _M_string_length; } | |
1002 | ||
1003 | /// Returns the number of characters in the string, not including any | |
1004 | /// null-termination. | |
b96e2ff9 | 1005 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1006 | size_type |
1007 | length() const _GLIBCXX_NOEXCEPT | |
1008 | { return _M_string_length; } | |
1009 | ||
1010 | /// Returns the size() of the largest possible %string. | |
b96e2ff9 | 1011 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1012 | size_type |
1013 | max_size() const _GLIBCXX_NOEXCEPT | |
1014 | { return (_Alloc_traits::max_size(_M_get_allocator()) - 1) / 2; } | |
1015 | ||
1016 | /** | |
1017 | * @brief Resizes the %string to the specified number of characters. | |
1018 | * @param __n Number of characters the %string should contain. | |
1019 | * @param __c Character to fill any new elements. | |
1020 | * | |
1021 | * This function will %resize the %string to the specified | |
1022 | * number of characters. If the number is smaller than the | |
1023 | * %string's current size the %string is truncated, otherwise | |
1024 | * the %string is extended and new elements are %set to @a __c. | |
1025 | */ | |
b96e2ff9 | 1026 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1027 | void |
1028 | resize(size_type __n, _CharT __c); | |
1029 | ||
1030 | /** | |
1031 | * @brief Resizes the %string to the specified number of characters. | |
1032 | * @param __n Number of characters the %string should contain. | |
1033 | * | |
1034 | * This function will resize the %string to the specified length. If | |
1035 | * the new size is smaller than the %string's current size the %string | |
1036 | * is truncated, otherwise the %string is extended and new characters | |
1037 | * are default-constructed. For basic types such as char, this means | |
1038 | * setting them to 0. | |
1039 | */ | |
b96e2ff9 | 1040 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1041 | void |
1042 | resize(size_type __n) | |
1043 | { this->resize(__n, _CharT()); } | |
1044 | ||
1045 | #if __cplusplus >= 201103L | |
140cf935 AL |
1046 | #pragma GCC diagnostic push |
1047 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" | |
34a2b755 | 1048 | /// A non-binding request to reduce capacity() to size(). |
b96e2ff9 | 1049 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1050 | void |
1051 | shrink_to_fit() noexcept | |
140cf935 AL |
1052 | { reserve(); } |
1053 | #pragma GCC diagnostic pop | |
34a2b755 JW |
1054 | #endif |
1055 | ||
929abc7f JW |
1056 | #if __cplusplus > 202002L |
1057 | #define __cpp_lib_string_resize_and_overwrite 202110L | |
1058 | template<typename _Operation> | |
1059 | constexpr void | |
1060 | resize_and_overwrite(size_type __n, _Operation __op); | |
1061 | #endif | |
1062 | ||
34a2b755 JW |
1063 | /** |
1064 | * Returns the total number of characters that the %string can hold | |
1065 | * before needing to allocate more memory. | |
1066 | */ | |
b96e2ff9 | 1067 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1068 | size_type |
1069 | capacity() const _GLIBCXX_NOEXCEPT | |
1070 | { | |
1071 | return _M_is_local() ? size_type(_S_local_capacity) | |
1072 | : _M_allocated_capacity; | |
1073 | } | |
1074 | ||
1075 | /** | |
1076 | * @brief Attempt to preallocate enough memory for specified number of | |
1077 | * characters. | |
1078 | * @param __res_arg Number of characters required. | |
1079 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). | |
1080 | * | |
1081 | * This function attempts to reserve enough memory for the | |
1082 | * %string to hold the specified number of characters. If the | |
1083 | * number requested is more than max_size(), length_error is | |
1084 | * thrown. | |
1085 | * | |
1086 | * The advantage of this function is that if optimal code is a | |
1087 | * necessity and the user can determine the string length that will be | |
1088 | * required, the user can reserve the memory in %advance, and thus | |
1089 | * prevent a possible reallocation of memory and copying of %string | |
1090 | * data. | |
1091 | */ | |
b96e2ff9 | 1092 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 1093 | void |
140cf935 AL |
1094 | reserve(size_type __res_arg); |
1095 | ||
1096 | /** | |
1097 | * Equivalent to shrink_to_fit(). | |
1098 | */ | |
1099 | #if __cplusplus > 201703L | |
1100 | [[deprecated("use shrink_to_fit() instead")]] | |
1101 | #endif | |
b96e2ff9 | 1102 | _GLIBCXX20_CONSTEXPR |
140cf935 AL |
1103 | void |
1104 | reserve(); | |
34a2b755 JW |
1105 | |
1106 | /** | |
1107 | * Erases the string, making it empty. | |
1108 | */ | |
b96e2ff9 | 1109 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1110 | void |
1111 | clear() _GLIBCXX_NOEXCEPT | |
1112 | { _M_set_length(0); } | |
1113 | ||
1114 | /** | |
1115 | * Returns true if the %string is empty. Equivalent to | |
1116 | * <code>*this == ""</code>. | |
1117 | */ | |
b96e2ff9 ML |
1118 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1119 | bool | |
34a2b755 JW |
1120 | empty() const _GLIBCXX_NOEXCEPT |
1121 | { return this->size() == 0; } | |
1122 | ||
1123 | // Element access: | |
1124 | /** | |
1125 | * @brief Subscript access to the data contained in the %string. | |
1126 | * @param __pos The index of the character to access. | |
1127 | * @return Read-only (constant) reference to the character. | |
1128 | * | |
1129 | * This operator allows for easy, array-style, data access. | |
1130 | * Note that data access with this operator is unchecked and | |
1131 | * out_of_range lookups are not defined. (For checked lookups | |
1132 | * see at().) | |
1133 | */ | |
b96e2ff9 | 1134 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1135 | const_reference |
1136 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT | |
1137 | { | |
2f1e8e7c | 1138 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1139 | return _M_data()[__pos]; |
1140 | } | |
1141 | ||
1142 | /** | |
1143 | * @brief Subscript access to the data contained in the %string. | |
1144 | * @param __pos The index of the character to access. | |
1145 | * @return Read/write reference to the character. | |
1146 | * | |
1147 | * This operator allows for easy, array-style, data access. | |
1148 | * Note that data access with this operator is unchecked and | |
1149 | * out_of_range lookups are not defined. (For checked lookups | |
1150 | * see at().) | |
1151 | */ | |
b96e2ff9 | 1152 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1153 | reference |
1154 | operator[](size_type __pos) | |
1155 | { | |
1156 | // Allow pos == size() both in C++98 mode, as v3 extension, | |
1157 | // and in C++11 mode. | |
2f1e8e7c | 1158 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1159 | // In pedantic mode be strict in C++98 mode. |
1160 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); | |
1161 | return _M_data()[__pos]; | |
1162 | } | |
1163 | ||
1164 | /** | |
1165 | * @brief Provides access to the data contained in the %string. | |
1166 | * @param __n The index of the character to access. | |
1167 | * @return Read-only (const) reference to the character. | |
1168 | * @throw std::out_of_range If @a n is an invalid index. | |
1169 | * | |
1170 | * This function provides for safer data access. The parameter is | |
1171 | * first checked that it is in the range of the string. The function | |
1172 | * throws out_of_range if the check fails. | |
1173 | */ | |
b96e2ff9 | 1174 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1175 | const_reference |
1176 | at(size_type __n) const | |
1177 | { | |
1178 | if (__n >= this->size()) | |
1179 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1180 | "(which is %zu) >= this->size() " | |
1181 | "(which is %zu)"), | |
1182 | __n, this->size()); | |
1183 | return _M_data()[__n]; | |
1184 | } | |
1185 | ||
1186 | /** | |
1187 | * @brief Provides access to the data contained in the %string. | |
1188 | * @param __n The index of the character to access. | |
1189 | * @return Read/write reference to the character. | |
1190 | * @throw std::out_of_range If @a n is an invalid index. | |
1191 | * | |
1192 | * This function provides for safer data access. The parameter is | |
1193 | * first checked that it is in the range of the string. The function | |
1194 | * throws out_of_range if the check fails. | |
1195 | */ | |
b96e2ff9 | 1196 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1197 | reference |
1198 | at(size_type __n) | |
1199 | { | |
1200 | if (__n >= size()) | |
1201 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1202 | "(which is %zu) >= this->size() " | |
1203 | "(which is %zu)"), | |
1204 | __n, this->size()); | |
1205 | return _M_data()[__n]; | |
1206 | } | |
1207 | ||
1208 | #if __cplusplus >= 201103L | |
1209 | /** | |
1210 | * Returns a read/write reference to the data at the first | |
1211 | * element of the %string. | |
1212 | */ | |
b96e2ff9 | 1213 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1214 | reference |
1215 | front() noexcept | |
e25d2617 | 1216 | { |
2f1e8e7c | 1217 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1218 | return operator[](0); |
1219 | } | |
34a2b755 JW |
1220 | |
1221 | /** | |
1222 | * Returns a read-only (constant) reference to the data at the first | |
1223 | * element of the %string. | |
1224 | */ | |
b96e2ff9 | 1225 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1226 | const_reference |
1227 | front() const noexcept | |
e25d2617 | 1228 | { |
2f1e8e7c | 1229 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1230 | return operator[](0); |
1231 | } | |
34a2b755 JW |
1232 | |
1233 | /** | |
1234 | * Returns a read/write reference to the data at the last | |
1235 | * element of the %string. | |
1236 | */ | |
b96e2ff9 | 1237 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1238 | reference |
1239 | back() noexcept | |
e25d2617 | 1240 | { |
2f1e8e7c | 1241 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1242 | return operator[](this->size() - 1); |
1243 | } | |
34a2b755 JW |
1244 | |
1245 | /** | |
1246 | * Returns a read-only (constant) reference to the data at the | |
1247 | * last element of the %string. | |
1248 | */ | |
b96e2ff9 | 1249 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1250 | const_reference |
1251 | back() const noexcept | |
e25d2617 | 1252 | { |
2f1e8e7c | 1253 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1254 | return operator[](this->size() - 1); |
1255 | } | |
34a2b755 JW |
1256 | #endif |
1257 | ||
1258 | // Modifiers: | |
1259 | /** | |
1260 | * @brief Append a string to this string. | |
1261 | * @param __str The string to append. | |
1262 | * @return Reference to this string. | |
1263 | */ | |
b96e2ff9 | 1264 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1265 | basic_string& |
1266 | operator+=(const basic_string& __str) | |
1267 | { return this->append(__str); } | |
1268 | ||
1269 | /** | |
1270 | * @brief Append a C string. | |
1271 | * @param __s The C string to append. | |
1272 | * @return Reference to this string. | |
1273 | */ | |
b96e2ff9 | 1274 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1275 | basic_string& |
1276 | operator+=(const _CharT* __s) | |
1277 | { return this->append(__s); } | |
1278 | ||
1279 | /** | |
1280 | * @brief Append a character. | |
1281 | * @param __c The character to append. | |
1282 | * @return Reference to this string. | |
1283 | */ | |
b96e2ff9 | 1284 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1285 | basic_string& |
1286 | operator+=(_CharT __c) | |
1287 | { | |
1288 | this->push_back(__c); | |
1289 | return *this; | |
1290 | } | |
1291 | ||
1292 | #if __cplusplus >= 201103L | |
1293 | /** | |
1294 | * @brief Append an initializer_list of characters. | |
1295 | * @param __l The initializer_list of characters to be appended. | |
1296 | * @return Reference to this string. | |
1297 | */ | |
b96e2ff9 | 1298 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1299 | basic_string& |
1300 | operator+=(initializer_list<_CharT> __l) | |
1301 | { return this->append(__l.begin(), __l.size()); } | |
1302 | #endif // C++11 | |
1303 | ||
1a289fa3 | 1304 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1305 | /** |
1306 | * @brief Append a string_view. | |
df66af3b | 1307 | * @param __svt An object convertible to string_view to be appended. |
ca8f2cb1 VV |
1308 | * @return Reference to this string. |
1309 | */ | |
df66af3b | 1310 | template<typename _Tp> |
b96e2ff9 | 1311 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1312 | _If_sv<_Tp, basic_string&> |
1313 | operator+=(const _Tp& __svt) | |
1314 | { return this->append(__svt); } | |
ca8f2cb1 VV |
1315 | #endif // C++17 |
1316 | ||
34a2b755 JW |
1317 | /** |
1318 | * @brief Append a string to this string. | |
1319 | * @param __str The string to append. | |
1320 | * @return Reference to this string. | |
1321 | */ | |
b96e2ff9 | 1322 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1323 | basic_string& |
1324 | append(const basic_string& __str) | |
2d60da10 | 1325 | { return _M_append(__str._M_data(), __str.size()); } |
34a2b755 JW |
1326 | |
1327 | /** | |
1328 | * @brief Append a substring. | |
1329 | * @param __str The string to append. | |
1330 | * @param __pos Index of the first character of str to append. | |
1331 | * @param __n The number of characters to append. | |
1332 | * @return Reference to this string. | |
1333 | * @throw std::out_of_range if @a __pos is not a valid index. | |
1334 | * | |
1335 | * This function appends @a __n characters from @a __str | |
1336 | * starting at @a __pos to this string. If @a __n is is larger | |
1337 | * than the number of available characters in @a __str, the | |
1338 | * remainder of @a __str is appended. | |
1339 | */ | |
b96e2ff9 | 1340 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 1341 | basic_string& |
852ee53c | 1342 | append(const basic_string& __str, size_type __pos, size_type __n = npos) |
2d60da10 | 1343 | { return _M_append(__str._M_data() |
34a2b755 JW |
1344 | + __str._M_check(__pos, "basic_string::append"), |
1345 | __str._M_limit(__pos, __n)); } | |
1346 | ||
1347 | /** | |
1348 | * @brief Append a C substring. | |
1349 | * @param __s The C string to append. | |
1350 | * @param __n The number of characters to append. | |
1351 | * @return Reference to this string. | |
1352 | */ | |
b96e2ff9 | 1353 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1354 | basic_string& |
1355 | append(const _CharT* __s, size_type __n) | |
1356 | { | |
1357 | __glibcxx_requires_string_len(__s, __n); | |
1358 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1359 | return _M_append(__s, __n); | |
1360 | } | |
1361 | ||
1362 | /** | |
1363 | * @brief Append a C string. | |
1364 | * @param __s The C string to append. | |
1365 | * @return Reference to this string. | |
1366 | */ | |
b96e2ff9 | 1367 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1368 | basic_string& |
1369 | append(const _CharT* __s) | |
1370 | { | |
1371 | __glibcxx_requires_string(__s); | |
1372 | const size_type __n = traits_type::length(__s); | |
1373 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1374 | return _M_append(__s, __n); | |
1375 | } | |
1376 | ||
1377 | /** | |
1378 | * @brief Append multiple characters. | |
1379 | * @param __n The number of characters to append. | |
1380 | * @param __c The character to use. | |
1381 | * @return Reference to this string. | |
1382 | * | |
1383 | * Appends __n copies of __c to this string. | |
1384 | */ | |
b96e2ff9 | 1385 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1386 | basic_string& |
1387 | append(size_type __n, _CharT __c) | |
1388 | { return _M_replace_aux(this->size(), size_type(0), __n, __c); } | |
1389 | ||
1390 | #if __cplusplus >= 201103L | |
1391 | /** | |
1392 | * @brief Append an initializer_list of characters. | |
1393 | * @param __l The initializer_list of characters to append. | |
1394 | * @return Reference to this string. | |
1395 | */ | |
b96e2ff9 | 1396 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1397 | basic_string& |
1398 | append(initializer_list<_CharT> __l) | |
1399 | { return this->append(__l.begin(), __l.size()); } | |
1400 | #endif // C++11 | |
1401 | ||
1402 | /** | |
1403 | * @brief Append a range of characters. | |
1404 | * @param __first Iterator referencing the first character to append. | |
1405 | * @param __last Iterator marking the end of the range. | |
1406 | * @return Reference to this string. | |
1407 | * | |
1408 | * Appends characters in the range [__first,__last) to this string. | |
1409 | */ | |
1410 | #if __cplusplus >= 201103L | |
1411 | template<class _InputIterator, | |
1412 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 1413 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1414 | #else |
1415 | template<class _InputIterator> | |
1416 | #endif | |
1417 | basic_string& | |
1418 | append(_InputIterator __first, _InputIterator __last) | |
1419 | { return this->replace(end(), end(), __first, __last); } | |
1420 | ||
1a289fa3 | 1421 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1422 | /** |
1423 | * @brief Append a string_view. | |
df66af3b | 1424 | * @param __svt An object convertible to string_view to be appended. |
ca8f2cb1 VV |
1425 | * @return Reference to this string. |
1426 | */ | |
df66af3b | 1427 | template<typename _Tp> |
b96e2ff9 | 1428 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1429 | _If_sv<_Tp, basic_string&> |
1430 | append(const _Tp& __svt) | |
1431 | { | |
1432 | __sv_type __sv = __svt; | |
1433 | return this->append(__sv.data(), __sv.size()); | |
1434 | } | |
ca8f2cb1 VV |
1435 | |
1436 | /** | |
1437 | * @brief Append a range of characters from a string_view. | |
df66af3b | 1438 | * @param __svt An object convertible to string_view to be appended from. |
ca8f2cb1 VV |
1439 | * @param __pos The position in the string_view to append from. |
1440 | * @param __n The number of characters to append from the string_view. | |
1441 | * @return Reference to this string. | |
1442 | */ | |
df66af3b | 1443 | template<typename _Tp> |
b96e2ff9 | 1444 | _GLIBCXX20_CONSTEXPR |
df66af3b | 1445 | _If_sv<_Tp, basic_string&> |
657213f7 JW |
1446 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) |
1447 | { | |
1448 | __sv_type __sv = __svt; | |
1449 | return _M_append(__sv.data() | |
fb8b3e29 JW |
1450 | + std::__sv_check(__sv.size(), __pos, "basic_string::append"), |
1451 | std::__sv_limit(__sv.size(), __pos, __n)); | |
657213f7 | 1452 | } |
ca8f2cb1 VV |
1453 | #endif // C++17 |
1454 | ||
34a2b755 JW |
1455 | /** |
1456 | * @brief Append a single character. | |
1457 | * @param __c Character to append. | |
1458 | */ | |
b96e2ff9 | 1459 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1460 | void |
1461 | push_back(_CharT __c) | |
1462 | { | |
1463 | const size_type __size = this->size(); | |
1464 | if (__size + 1 > this->capacity()) | |
1465 | this->_M_mutate(__size, size_type(0), 0, size_type(1)); | |
1466 | traits_type::assign(this->_M_data()[__size], __c); | |
1467 | this->_M_set_length(__size + 1); | |
1468 | } | |
1469 | ||
1470 | /** | |
1471 | * @brief Set value to contents of another string. | |
1472 | * @param __str Source string to use. | |
1473 | * @return Reference to this string. | |
1474 | */ | |
b96e2ff9 | 1475 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1476 | basic_string& |
1477 | assign(const basic_string& __str) | |
1478 | { | |
db33efde NDR |
1479 | #if __cplusplus >= 201103L |
1480 | if (_Alloc_traits::_S_propagate_on_copy_assign()) | |
1481 | { | |
1482 | if (!_Alloc_traits::_S_always_equal() && !_M_is_local() | |
1483 | && _M_get_allocator() != __str._M_get_allocator()) | |
1484 | { | |
1485 | // Propagating allocator cannot free existing storage so must | |
1486 | // deallocate it before replacing current allocator. | |
1487 | if (__str.size() <= _S_local_capacity) | |
1488 | { | |
1489 | _M_destroy(_M_allocated_capacity); | |
1490 | _M_data(_M_local_data()); | |
1491 | _M_set_length(0); | |
1492 | } | |
1493 | else | |
1494 | { | |
1495 | const auto __len = __str.size(); | |
1496 | auto __alloc = __str._M_get_allocator(); | |
1497 | // If this allocation throws there are no effects: | |
1498 | auto __ptr = _Alloc_traits::allocate(__alloc, __len + 1); | |
1499 | _M_destroy(_M_allocated_capacity); | |
1500 | _M_data(__ptr); | |
1501 | _M_capacity(__len); | |
1502 | _M_set_length(__len); | |
1503 | } | |
1504 | } | |
1505 | std::__alloc_on_copy(_M_get_allocator(), __str._M_get_allocator()); | |
1506 | } | |
1507 | #endif | |
34a2b755 JW |
1508 | this->_M_assign(__str); |
1509 | return *this; | |
1510 | } | |
1511 | ||
1512 | #if __cplusplus >= 201103L | |
1513 | /** | |
1514 | * @brief Set value to contents of another string. | |
1515 | * @param __str Source string to use. | |
1516 | * @return Reference to this string. | |
1517 | * | |
1518 | * This function sets this string to the exact contents of @a __str. | |
1519 | * @a __str is a valid, but unspecified string. | |
1520 | */ | |
b96e2ff9 | 1521 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1522 | basic_string& |
1523 | assign(basic_string&& __str) | |
5caff414 | 1524 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 JW |
1525 | { |
1526 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
1527 | // 2063. Contradictory requirements for string move assignment | |
1528 | return *this = std::move(__str); | |
1529 | } | |
1530 | #endif // C++11 | |
1531 | ||
1532 | /** | |
1533 | * @brief Set value to a substring of a string. | |
1534 | * @param __str The string to use. | |
1535 | * @param __pos Index of the first character of str. | |
1536 | * @param __n Number of characters to use. | |
1537 | * @return Reference to this string. | |
1538 | * @throw std::out_of_range if @a pos is not a valid index. | |
1539 | * | |
1540 | * This function sets this string to the substring of @a __str | |
1541 | * consisting of @a __n characters at @a __pos. If @a __n is | |
1542 | * is larger than the number of available characters in @a | |
1543 | * __str, the remainder of @a __str is used. | |
1544 | */ | |
b96e2ff9 | 1545 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 1546 | basic_string& |
852ee53c | 1547 | assign(const basic_string& __str, size_type __pos, size_type __n = npos) |
2d60da10 | 1548 | { return _M_replace(size_type(0), this->size(), __str._M_data() |
34a2b755 JW |
1549 | + __str._M_check(__pos, "basic_string::assign"), |
1550 | __str._M_limit(__pos, __n)); } | |
1551 | ||
1552 | /** | |
1553 | * @brief Set value to a C substring. | |
1554 | * @param __s The C string to use. | |
1555 | * @param __n Number of characters to use. | |
1556 | * @return Reference to this string. | |
1557 | * | |
1558 | * This function sets the value of this string to the first @a __n | |
1559 | * characters of @a __s. If @a __n is is larger than the number of | |
1560 | * available characters in @a __s, the remainder of @a __s is used. | |
1561 | */ | |
b96e2ff9 | 1562 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1563 | basic_string& |
1564 | assign(const _CharT* __s, size_type __n) | |
1565 | { | |
1566 | __glibcxx_requires_string_len(__s, __n); | |
1567 | return _M_replace(size_type(0), this->size(), __s, __n); | |
1568 | } | |
1569 | ||
1570 | /** | |
1571 | * @brief Set value to contents of a C string. | |
1572 | * @param __s The C string to use. | |
1573 | * @return Reference to this string. | |
1574 | * | |
1575 | * This function sets the value of this string to the value of @a __s. | |
1576 | * The data is copied, so there is no dependence on @a __s once the | |
1577 | * function returns. | |
1578 | */ | |
b96e2ff9 | 1579 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1580 | basic_string& |
1581 | assign(const _CharT* __s) | |
1582 | { | |
1583 | __glibcxx_requires_string(__s); | |
1584 | return _M_replace(size_type(0), this->size(), __s, | |
1585 | traits_type::length(__s)); | |
1586 | } | |
1587 | ||
1588 | /** | |
1589 | * @brief Set value to multiple characters. | |
1590 | * @param __n Length of the resulting string. | |
1591 | * @param __c The character to use. | |
1592 | * @return Reference to this string. | |
1593 | * | |
1594 | * This function sets the value of this string to @a __n copies of | |
1595 | * character @a __c. | |
1596 | */ | |
b96e2ff9 | 1597 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1598 | basic_string& |
1599 | assign(size_type __n, _CharT __c) | |
1600 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } | |
1601 | ||
1602 | /** | |
1603 | * @brief Set value to a range of characters. | |
1604 | * @param __first Iterator referencing the first character to append. | |
1605 | * @param __last Iterator marking the end of the range. | |
1606 | * @return Reference to this string. | |
1607 | * | |
1608 | * Sets value of string to characters in the range [__first,__last). | |
1609 | */ | |
1610 | #if __cplusplus >= 201103L | |
1611 | template<class _InputIterator, | |
1612 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 1613 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1614 | #else |
1615 | template<class _InputIterator> | |
1616 | #endif | |
1617 | basic_string& | |
1618 | assign(_InputIterator __first, _InputIterator __last) | |
1619 | { return this->replace(begin(), end(), __first, __last); } | |
1620 | ||
1621 | #if __cplusplus >= 201103L | |
1622 | /** | |
1623 | * @brief Set value to an initializer_list of characters. | |
1624 | * @param __l The initializer_list of characters to assign. | |
1625 | * @return Reference to this string. | |
1626 | */ | |
b96e2ff9 | 1627 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1628 | basic_string& |
1629 | assign(initializer_list<_CharT> __l) | |
1630 | { return this->assign(__l.begin(), __l.size()); } | |
1631 | #endif // C++11 | |
1632 | ||
1a289fa3 | 1633 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1634 | /** |
1635 | * @brief Set value from a string_view. | |
df66af3b | 1636 | * @param __svt The source object convertible to string_view. |
ca8f2cb1 VV |
1637 | * @return Reference to this string. |
1638 | */ | |
df66af3b | 1639 | template<typename _Tp> |
b96e2ff9 | 1640 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1641 | _If_sv<_Tp, basic_string&> |
1642 | assign(const _Tp& __svt) | |
1643 | { | |
1644 | __sv_type __sv = __svt; | |
1645 | return this->assign(__sv.data(), __sv.size()); | |
1646 | } | |
ca8f2cb1 VV |
1647 | |
1648 | /** | |
1649 | * @brief Set value from a range of characters in a string_view. | |
df66af3b | 1650 | * @param __svt The source object convertible to string_view. |
ca8f2cb1 VV |
1651 | * @param __pos The position in the string_view to assign from. |
1652 | * @param __n The number of characters to assign. | |
1653 | * @return Reference to this string. | |
1654 | */ | |
df66af3b | 1655 | template<typename _Tp> |
b96e2ff9 | 1656 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
1657 | _If_sv<_Tp, basic_string&> |
1658 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
1659 | { | |
1660 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
1661 | return _M_replace(size_type(0), this->size(), |
1662 | __sv.data() | |
1663 | + std::__sv_check(__sv.size(), __pos, "basic_string::assign"), | |
1664 | std::__sv_limit(__sv.size(), __pos, __n)); | |
657213f7 | 1665 | } |
ca8f2cb1 VV |
1666 | #endif // C++17 |
1667 | ||
34a2b755 JW |
1668 | #if __cplusplus >= 201103L |
1669 | /** | |
1670 | * @brief Insert multiple characters. | |
1671 | * @param __p Const_iterator referencing location in string to | |
1672 | * insert at. | |
1673 | * @param __n Number of characters to insert | |
1674 | * @param __c The character to insert. | |
1675 | * @return Iterator referencing the first inserted char. | |
1676 | * @throw std::length_error If new length exceeds @c max_size(). | |
1677 | * | |
1678 | * Inserts @a __n copies of character @a __c starting at the | |
1679 | * position referenced by iterator @a __p. If adding | |
1680 | * characters causes the length to exceed max_size(), | |
1681 | * length_error is thrown. The value of the string doesn't | |
1682 | * change if an error is thrown. | |
1683 | */ | |
b96e2ff9 | 1684 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1685 | iterator |
1686 | insert(const_iterator __p, size_type __n, _CharT __c) | |
1687 | { | |
1688 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1689 | const size_type __pos = __p - begin(); | |
1690 | this->replace(__p, __p, __n, __c); | |
1691 | return iterator(this->_M_data() + __pos); | |
1692 | } | |
1693 | #else | |
1694 | /** | |
1695 | * @brief Insert multiple characters. | |
1696 | * @param __p Iterator referencing location in string to insert at. | |
1697 | * @param __n Number of characters to insert | |
1698 | * @param __c The character to insert. | |
1699 | * @throw std::length_error If new length exceeds @c max_size(). | |
1700 | * | |
1701 | * Inserts @a __n copies of character @a __c starting at the | |
1702 | * position referenced by iterator @a __p. If adding | |
1703 | * characters causes the length to exceed max_size(), | |
1704 | * length_error is thrown. The value of the string doesn't | |
1705 | * change if an error is thrown. | |
1706 | */ | |
1707 | void | |
1708 | insert(iterator __p, size_type __n, _CharT __c) | |
1709 | { this->replace(__p, __p, __n, __c); } | |
1710 | #endif | |
1711 | ||
1712 | #if __cplusplus >= 201103L | |
1713 | /** | |
1714 | * @brief Insert a range of characters. | |
1715 | * @param __p Const_iterator referencing location in string to | |
1716 | * insert at. | |
1717 | * @param __beg Start of range. | |
1718 | * @param __end End of range. | |
1719 | * @return Iterator referencing the first inserted char. | |
1720 | * @throw std::length_error If new length exceeds @c max_size(). | |
1721 | * | |
1722 | * Inserts characters in range [beg,end). If adding characters | |
1723 | * causes the length to exceed max_size(), length_error is | |
1724 | * thrown. The value of the string doesn't change if an error | |
1725 | * is thrown. | |
1726 | */ | |
1727 | template<class _InputIterator, | |
1728 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 1729 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1730 | iterator |
1731 | insert(const_iterator __p, _InputIterator __beg, _InputIterator __end) | |
1732 | { | |
1733 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1734 | const size_type __pos = __p - begin(); | |
1735 | this->replace(__p, __p, __beg, __end); | |
1736 | return iterator(this->_M_data() + __pos); | |
1737 | } | |
1738 | #else | |
1739 | /** | |
1740 | * @brief Insert a range of characters. | |
1741 | * @param __p Iterator referencing location in string to insert at. | |
1742 | * @param __beg Start of range. | |
1743 | * @param __end End of range. | |
1744 | * @throw std::length_error If new length exceeds @c max_size(). | |
1745 | * | |
1746 | * Inserts characters in range [__beg,__end). If adding | |
1747 | * characters causes the length to exceed max_size(), | |
1748 | * length_error is thrown. The value of the string doesn't | |
1749 | * change if an error is thrown. | |
1750 | */ | |
1751 | template<class _InputIterator> | |
1752 | void | |
1753 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) | |
1754 | { this->replace(__p, __p, __beg, __end); } | |
1755 | #endif | |
1756 | ||
1757 | #if __cplusplus >= 201103L | |
1758 | /** | |
1759 | * @brief Insert an initializer_list of characters. | |
1760 | * @param __p Iterator referencing location in string to insert at. | |
1761 | * @param __l The initializer_list of characters to insert. | |
1762 | * @throw std::length_error If new length exceeds @c max_size(). | |
1763 | */ | |
b96e2ff9 | 1764 | _GLIBCXX20_CONSTEXPR |
cda121ac JW |
1765 | iterator |
1766 | insert(const_iterator __p, initializer_list<_CharT> __l) | |
1767 | { return this->insert(__p, __l.begin(), __l.end()); } | |
1768 | ||
1769 | #ifdef _GLIBCXX_DEFINING_STRING_INSTANTIATIONS | |
1770 | // See PR libstdc++/83328 | |
34a2b755 JW |
1771 | void |
1772 | insert(iterator __p, initializer_list<_CharT> __l) | |
1773 | { | |
1774 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1775 | this->insert(__p - begin(), __l.begin(), __l.size()); | |
1776 | } | |
cda121ac | 1777 | #endif |
34a2b755 JW |
1778 | #endif // C++11 |
1779 | ||
1780 | /** | |
1781 | * @brief Insert value of a string. | |
8c6a71e4 | 1782 | * @param __pos1 Position in string to insert at. |
34a2b755 JW |
1783 | * @param __str The string to insert. |
1784 | * @return Reference to this string. | |
1785 | * @throw std::length_error If new length exceeds @c max_size(). | |
1786 | * | |
1787 | * Inserts value of @a __str starting at @a __pos1. If adding | |
1788 | * characters causes the length to exceed max_size(), | |
1789 | * length_error is thrown. The value of the string doesn't | |
1790 | * change if an error is thrown. | |
1791 | */ | |
b96e2ff9 | 1792 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1793 | basic_string& |
1794 | insert(size_type __pos1, const basic_string& __str) | |
1795 | { return this->replace(__pos1, size_type(0), | |
2d60da10 | 1796 | __str._M_data(), __str.size()); } |
34a2b755 JW |
1797 | |
1798 | /** | |
1799 | * @brief Insert a substring. | |
8c6a71e4 JW |
1800 | * @param __pos1 Position in string to insert at. |
1801 | * @param __str The string to insert. | |
34a2b755 JW |
1802 | * @param __pos2 Start of characters in str to insert. |
1803 | * @param __n Number of characters to insert. | |
1804 | * @return Reference to this string. | |
1805 | * @throw std::length_error If new length exceeds @c max_size(). | |
1806 | * @throw std::out_of_range If @a pos1 > size() or | |
1807 | * @a __pos2 > @a str.size(). | |
1808 | * | |
1809 | * Starting at @a pos1, insert @a __n character of @a __str | |
1810 | * beginning with @a __pos2. If adding characters causes the | |
1811 | * length to exceed max_size(), length_error is thrown. If @a | |
1812 | * __pos1 is beyond the end of this string or @a __pos2 is | |
1813 | * beyond the end of @a __str, out_of_range is thrown. The | |
1814 | * value of the string doesn't change if an error is thrown. | |
1815 | */ | |
b96e2ff9 | 1816 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1817 | basic_string& |
1818 | insert(size_type __pos1, const basic_string& __str, | |
852ee53c | 1819 | size_type __pos2, size_type __n = npos) |
2d60da10 | 1820 | { return this->replace(__pos1, size_type(0), __str._M_data() |
34a2b755 JW |
1821 | + __str._M_check(__pos2, "basic_string::insert"), |
1822 | __str._M_limit(__pos2, __n)); } | |
1823 | ||
1824 | /** | |
1825 | * @brief Insert a C substring. | |
8c6a71e4 | 1826 | * @param __pos Position in string to insert at. |
34a2b755 JW |
1827 | * @param __s The C string to insert. |
1828 | * @param __n The number of characters to insert. | |
1829 | * @return Reference to this string. | |
1830 | * @throw std::length_error If new length exceeds @c max_size(). | |
1831 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1832 | * string. | |
1833 | * | |
1834 | * Inserts the first @a __n characters of @a __s starting at @a | |
1835 | * __pos. If adding characters causes the length to exceed | |
1836 | * max_size(), length_error is thrown. If @a __pos is beyond | |
1837 | * end(), out_of_range is thrown. The value of the string | |
1838 | * doesn't change if an error is thrown. | |
1839 | */ | |
b96e2ff9 | 1840 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1841 | basic_string& |
1842 | insert(size_type __pos, const _CharT* __s, size_type __n) | |
1843 | { return this->replace(__pos, size_type(0), __s, __n); } | |
1844 | ||
1845 | /** | |
1846 | * @brief Insert a C string. | |
8c6a71e4 | 1847 | * @param __pos Position in string to insert at. |
34a2b755 JW |
1848 | * @param __s The C string to insert. |
1849 | * @return Reference to this string. | |
1850 | * @throw std::length_error If new length exceeds @c max_size(). | |
1851 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1852 | * string. | |
1853 | * | |
1854 | * Inserts the first @a n characters of @a __s starting at @a __pos. If | |
1855 | * adding characters causes the length to exceed max_size(), | |
1856 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is | |
1857 | * thrown. The value of the string doesn't change if an error is | |
1858 | * thrown. | |
1859 | */ | |
b96e2ff9 | 1860 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1861 | basic_string& |
1862 | insert(size_type __pos, const _CharT* __s) | |
1863 | { | |
1864 | __glibcxx_requires_string(__s); | |
1865 | return this->replace(__pos, size_type(0), __s, | |
1866 | traits_type::length(__s)); | |
1867 | } | |
1868 | ||
1869 | /** | |
1870 | * @brief Insert multiple characters. | |
1871 | * @param __pos Index in string to insert at. | |
1872 | * @param __n Number of characters to insert | |
1873 | * @param __c The character to insert. | |
1874 | * @return Reference to this string. | |
1875 | * @throw std::length_error If new length exceeds @c max_size(). | |
1876 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1877 | * string. | |
1878 | * | |
1879 | * Inserts @a __n copies of character @a __c starting at index | |
1880 | * @a __pos. If adding characters causes the length to exceed | |
1881 | * max_size(), length_error is thrown. If @a __pos > length(), | |
1882 | * out_of_range is thrown. The value of the string doesn't | |
1883 | * change if an error is thrown. | |
1884 | */ | |
b96e2ff9 | 1885 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1886 | basic_string& |
1887 | insert(size_type __pos, size_type __n, _CharT __c) | |
1888 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), | |
1889 | size_type(0), __n, __c); } | |
1890 | ||
1891 | /** | |
1892 | * @brief Insert one character. | |
1893 | * @param __p Iterator referencing position in string to insert at. | |
1894 | * @param __c The character to insert. | |
1895 | * @return Iterator referencing newly inserted char. | |
1896 | * @throw std::length_error If new length exceeds @c max_size(). | |
1897 | * | |
1898 | * Inserts character @a __c at position referenced by @a __p. | |
1899 | * If adding character causes the length to exceed max_size(), | |
1900 | * length_error is thrown. If @a __p is beyond end of string, | |
1901 | * out_of_range is thrown. The value of the string doesn't | |
1902 | * change if an error is thrown. | |
1903 | */ | |
b96e2ff9 | 1904 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1905 | iterator |
1906 | insert(__const_iterator __p, _CharT __c) | |
1907 | { | |
1908 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1909 | const size_type __pos = __p - begin(); | |
1910 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); | |
1911 | return iterator(_M_data() + __pos); | |
1912 | } | |
1913 | ||
1a289fa3 | 1914 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1915 | /** |
1916 | * @brief Insert a string_view. | |
8c6a71e4 | 1917 | * @param __pos Position in string to insert at. |
df66af3b | 1918 | * @param __svt The object convertible to string_view to insert. |
ca8f2cb1 VV |
1919 | * @return Reference to this string. |
1920 | */ | |
df66af3b | 1921 | template<typename _Tp> |
b96e2ff9 | 1922 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1923 | _If_sv<_Tp, basic_string&> |
1924 | insert(size_type __pos, const _Tp& __svt) | |
1925 | { | |
1926 | __sv_type __sv = __svt; | |
1927 | return this->insert(__pos, __sv.data(), __sv.size()); | |
1928 | } | |
ca8f2cb1 VV |
1929 | |
1930 | /** | |
1931 | * @brief Insert a string_view. | |
8c6a71e4 JW |
1932 | * @param __pos1 Position in string to insert at. |
1933 | * @param __svt The object convertible to string_view to insert from. | |
1934 | * @param __pos2 Start of characters in str to insert. | |
ca8f2cb1 VV |
1935 | * @param __n The number of characters to insert. |
1936 | * @return Reference to this string. | |
1937 | */ | |
df66af3b | 1938 | template<typename _Tp> |
b96e2ff9 | 1939 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
1940 | _If_sv<_Tp, basic_string&> |
1941 | insert(size_type __pos1, const _Tp& __svt, | |
1942 | size_type __pos2, size_type __n = npos) | |
1943 | { | |
1944 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
1945 | return this->replace(__pos1, size_type(0), |
1946 | __sv.data() | |
1947 | + std::__sv_check(__sv.size(), __pos2, "basic_string::insert"), | |
1948 | std::__sv_limit(__sv.size(), __pos2, __n)); | |
657213f7 | 1949 | } |
ca8f2cb1 VV |
1950 | #endif // C++17 |
1951 | ||
34a2b755 JW |
1952 | /** |
1953 | * @brief Remove characters. | |
1954 | * @param __pos Index of first character to remove (default 0). | |
1955 | * @param __n Number of characters to remove (default remainder). | |
1956 | * @return Reference to this string. | |
1957 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1958 | * string. | |
1959 | * | |
1960 | * Removes @a __n characters from this string starting at @a | |
1961 | * __pos. The length of the string is reduced by @a __n. If | |
1962 | * there are < @a __n characters to remove, the remainder of | |
1963 | * the string is truncated. If @a __p is beyond end of string, | |
1964 | * out_of_range is thrown. The value of the string doesn't | |
1965 | * change if an error is thrown. | |
1966 | */ | |
b96e2ff9 | 1967 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1968 | basic_string& |
1969 | erase(size_type __pos = 0, size_type __n = npos) | |
1970 | { | |
a922c5ff JW |
1971 | _M_check(__pos, "basic_string::erase"); |
1972 | if (__n == npos) | |
1973 | this->_M_set_length(__pos); | |
1974 | else if (__n != 0) | |
1975 | this->_M_erase(__pos, _M_limit(__pos, __n)); | |
34a2b755 JW |
1976 | return *this; |
1977 | } | |
1978 | ||
1979 | /** | |
1980 | * @brief Remove one character. | |
1981 | * @param __position Iterator referencing the character to remove. | |
1982 | * @return iterator referencing same location after removal. | |
1983 | * | |
1984 | * Removes the character at @a __position from this string. The value | |
1985 | * of the string doesn't change if an error is thrown. | |
1986 | */ | |
b96e2ff9 | 1987 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1988 | iterator |
1989 | erase(__const_iterator __position) | |
1990 | { | |
1991 | _GLIBCXX_DEBUG_PEDASSERT(__position >= begin() | |
1992 | && __position < end()); | |
1993 | const size_type __pos = __position - begin(); | |
1994 | this->_M_erase(__pos, size_type(1)); | |
1995 | return iterator(_M_data() + __pos); | |
1996 | } | |
1997 | ||
1998 | /** | |
1999 | * @brief Remove a range of characters. | |
2000 | * @param __first Iterator referencing the first character to remove. | |
2001 | * @param __last Iterator referencing the end of the range. | |
2002 | * @return Iterator referencing location of first after removal. | |
2003 | * | |
2004 | * Removes the characters in the range [first,last) from this string. | |
2005 | * The value of the string doesn't change if an error is thrown. | |
2006 | */ | |
b96e2ff9 | 2007 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2008 | iterator |
2009 | erase(__const_iterator __first, __const_iterator __last) | |
2010 | { | |
2011 | _GLIBCXX_DEBUG_PEDASSERT(__first >= begin() && __first <= __last | |
2012 | && __last <= end()); | |
2013 | const size_type __pos = __first - begin(); | |
a922c5ff JW |
2014 | if (__last == end()) |
2015 | this->_M_set_length(__pos); | |
2016 | else | |
2017 | this->_M_erase(__pos, __last - __first); | |
34a2b755 JW |
2018 | return iterator(this->_M_data() + __pos); |
2019 | } | |
2020 | ||
2021 | #if __cplusplus >= 201103L | |
2022 | /** | |
2023 | * @brief Remove the last character. | |
2024 | * | |
2025 | * The string must be non-empty. | |
2026 | */ | |
b96e2ff9 | 2027 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2028 | void |
2029 | pop_back() noexcept | |
e25d2617 | 2030 | { |
2f1e8e7c | 2031 | __glibcxx_assert(!empty()); |
e25d2617 FD |
2032 | _M_erase(size() - 1, 1); |
2033 | } | |
34a2b755 JW |
2034 | #endif // C++11 |
2035 | ||
2036 | /** | |
2037 | * @brief Replace characters with value from another string. | |
2038 | * @param __pos Index of first character to replace. | |
2039 | * @param __n Number of characters to be replaced. | |
2040 | * @param __str String to insert. | |
2041 | * @return Reference to this string. | |
2042 | * @throw std::out_of_range If @a pos is beyond the end of this | |
2043 | * string. | |
2044 | * @throw std::length_error If new length exceeds @c max_size(). | |
2045 | * | |
2046 | * Removes the characters in the range [__pos,__pos+__n) from | |
2047 | * this string. In place, the value of @a __str is inserted. | |
2048 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
2049 | * If the length of the result exceeds max_size(), length_error | |
2050 | * is thrown. The value of the string doesn't change if an | |
2051 | * error is thrown. | |
2052 | */ | |
b96e2ff9 | 2053 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2054 | basic_string& |
2055 | replace(size_type __pos, size_type __n, const basic_string& __str) | |
2d60da10 | 2056 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
34a2b755 JW |
2057 | |
2058 | /** | |
2059 | * @brief Replace characters with value from another string. | |
2060 | * @param __pos1 Index of first character to replace. | |
2061 | * @param __n1 Number of characters to be replaced. | |
2062 | * @param __str String to insert. | |
2063 | * @param __pos2 Index of first character of str to use. | |
2064 | * @param __n2 Number of characters from str to use. | |
2065 | * @return Reference to this string. | |
2066 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > | |
2067 | * __str.size(). | |
2068 | * @throw std::length_error If new length exceeds @c max_size(). | |
2069 | * | |
2070 | * Removes the characters in the range [__pos1,__pos1 + n) from this | |
2071 | * string. In place, the value of @a __str is inserted. If @a __pos is | |
2072 | * beyond end of string, out_of_range is thrown. If the length of the | |
2073 | * result exceeds max_size(), length_error is thrown. The value of the | |
2074 | * string doesn't change if an error is thrown. | |
2075 | */ | |
b96e2ff9 | 2076 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2077 | basic_string& |
2078 | replace(size_type __pos1, size_type __n1, const basic_string& __str, | |
852ee53c | 2079 | size_type __pos2, size_type __n2 = npos) |
2d60da10 | 2080 | { return this->replace(__pos1, __n1, __str._M_data() |
34a2b755 JW |
2081 | + __str._M_check(__pos2, "basic_string::replace"), |
2082 | __str._M_limit(__pos2, __n2)); } | |
2083 | ||
2084 | /** | |
2085 | * @brief Replace characters with value of a C substring. | |
2086 | * @param __pos Index of first character to replace. | |
2087 | * @param __n1 Number of characters to be replaced. | |
2088 | * @param __s C string to insert. | |
2089 | * @param __n2 Number of characters from @a s to use. | |
2090 | * @return Reference to this string. | |
2091 | * @throw std::out_of_range If @a pos1 > size(). | |
2092 | * @throw std::length_error If new length exceeds @c max_size(). | |
2093 | * | |
2094 | * Removes the characters in the range [__pos,__pos + __n1) | |
2095 | * from this string. In place, the first @a __n2 characters of | |
2096 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If | |
2097 | * @a __pos is beyond end of string, out_of_range is thrown. If | |
2098 | * the length of result exceeds max_size(), length_error is | |
2099 | * thrown. The value of the string doesn't change if an error | |
2100 | * is thrown. | |
2101 | */ | |
b96e2ff9 | 2102 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2103 | basic_string& |
2104 | replace(size_type __pos, size_type __n1, const _CharT* __s, | |
2105 | size_type __n2) | |
2106 | { | |
2107 | __glibcxx_requires_string_len(__s, __n2); | |
2108 | return _M_replace(_M_check(__pos, "basic_string::replace"), | |
2109 | _M_limit(__pos, __n1), __s, __n2); | |
2110 | } | |
2111 | ||
2112 | /** | |
2113 | * @brief Replace characters with value of a C string. | |
2114 | * @param __pos Index of first character to replace. | |
2115 | * @param __n1 Number of characters to be replaced. | |
2116 | * @param __s C string to insert. | |
2117 | * @return Reference to this string. | |
2118 | * @throw std::out_of_range If @a pos > size(). | |
2119 | * @throw std::length_error If new length exceeds @c max_size(). | |
2120 | * | |
2121 | * Removes the characters in the range [__pos,__pos + __n1) | |
2122 | * from this string. In place, the characters of @a __s are | |
2123 | * inserted. If @a __pos is beyond end of string, out_of_range | |
2124 | * is thrown. If the length of result exceeds max_size(), | |
2125 | * length_error is thrown. The value of the string doesn't | |
2126 | * change if an error is thrown. | |
2127 | */ | |
b96e2ff9 | 2128 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2129 | basic_string& |
2130 | replace(size_type __pos, size_type __n1, const _CharT* __s) | |
2131 | { | |
2132 | __glibcxx_requires_string(__s); | |
2133 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); | |
2134 | } | |
2135 | ||
2136 | /** | |
2137 | * @brief Replace characters with multiple characters. | |
2138 | * @param __pos Index of first character to replace. | |
2139 | * @param __n1 Number of characters to be replaced. | |
2140 | * @param __n2 Number of characters to insert. | |
2141 | * @param __c Character to insert. | |
2142 | * @return Reference to this string. | |
2143 | * @throw std::out_of_range If @a __pos > size(). | |
2144 | * @throw std::length_error If new length exceeds @c max_size(). | |
2145 | * | |
2146 | * Removes the characters in the range [pos,pos + n1) from this | |
2147 | * string. In place, @a __n2 copies of @a __c are inserted. | |
2148 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
2149 | * If the length of result exceeds max_size(), length_error is | |
2150 | * thrown. The value of the string doesn't change if an error | |
2151 | * is thrown. | |
2152 | */ | |
b96e2ff9 | 2153 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2154 | basic_string& |
2155 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) | |
2156 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), | |
2157 | _M_limit(__pos, __n1), __n2, __c); } | |
2158 | ||
2159 | /** | |
2160 | * @brief Replace range of characters with string. | |
2161 | * @param __i1 Iterator referencing start of range to replace. | |
2162 | * @param __i2 Iterator referencing end of range to replace. | |
2163 | * @param __str String value to insert. | |
2164 | * @return Reference to this string. | |
2165 | * @throw std::length_error If new length exceeds @c max_size(). | |
2166 | * | |
2167 | * Removes the characters in the range [__i1,__i2). In place, | |
2168 | * the value of @a __str is inserted. If the length of result | |
2169 | * exceeds max_size(), length_error is thrown. The value of | |
2170 | * the string doesn't change if an error is thrown. | |
2171 | */ | |
b96e2ff9 | 2172 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2173 | basic_string& |
2174 | replace(__const_iterator __i1, __const_iterator __i2, | |
2175 | const basic_string& __str) | |
2d60da10 | 2176 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
34a2b755 JW |
2177 | |
2178 | /** | |
2179 | * @brief Replace range of characters with C substring. | |
2180 | * @param __i1 Iterator referencing start of range to replace. | |
2181 | * @param __i2 Iterator referencing end of range to replace. | |
2182 | * @param __s C string value to insert. | |
2183 | * @param __n Number of characters from s to insert. | |
2184 | * @return Reference to this string. | |
2185 | * @throw std::length_error If new length exceeds @c max_size(). | |
2186 | * | |
2187 | * Removes the characters in the range [__i1,__i2). In place, | |
2188 | * the first @a __n characters of @a __s are inserted. If the | |
2189 | * length of result exceeds max_size(), length_error is thrown. | |
2190 | * The value of the string doesn't change if an error is | |
2191 | * thrown. | |
2192 | */ | |
b96e2ff9 | 2193 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2194 | basic_string& |
2195 | replace(__const_iterator __i1, __const_iterator __i2, | |
2196 | const _CharT* __s, size_type __n) | |
2197 | { | |
2198 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2199 | && __i2 <= end()); | |
2200 | return this->replace(__i1 - begin(), __i2 - __i1, __s, __n); | |
2201 | } | |
2202 | ||
2203 | /** | |
2204 | * @brief Replace range of characters with C string. | |
2205 | * @param __i1 Iterator referencing start of range to replace. | |
2206 | * @param __i2 Iterator referencing end of range to replace. | |
2207 | * @param __s C string value to insert. | |
2208 | * @return Reference to this string. | |
2209 | * @throw std::length_error If new length exceeds @c max_size(). | |
2210 | * | |
2211 | * Removes the characters in the range [__i1,__i2). In place, | |
2212 | * the characters of @a __s are inserted. If the length of | |
2213 | * result exceeds max_size(), length_error is thrown. The | |
2214 | * value of the string doesn't change if an error is thrown. | |
2215 | */ | |
b96e2ff9 | 2216 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2217 | basic_string& |
2218 | replace(__const_iterator __i1, __const_iterator __i2, const _CharT* __s) | |
2219 | { | |
2220 | __glibcxx_requires_string(__s); | |
2221 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); | |
2222 | } | |
2223 | ||
2224 | /** | |
2225 | * @brief Replace range of characters with multiple characters | |
2226 | * @param __i1 Iterator referencing start of range to replace. | |
2227 | * @param __i2 Iterator referencing end of range to replace. | |
2228 | * @param __n Number of characters to insert. | |
2229 | * @param __c Character to insert. | |
2230 | * @return Reference to this string. | |
2231 | * @throw std::length_error If new length exceeds @c max_size(). | |
2232 | * | |
2233 | * Removes the characters in the range [__i1,__i2). In place, | |
2234 | * @a __n copies of @a __c are inserted. If the length of | |
2235 | * result exceeds max_size(), length_error is thrown. The | |
2236 | * value of the string doesn't change if an error is thrown. | |
2237 | */ | |
b96e2ff9 | 2238 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2239 | basic_string& |
2240 | replace(__const_iterator __i1, __const_iterator __i2, size_type __n, | |
2241 | _CharT __c) | |
2242 | { | |
2243 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2244 | && __i2 <= end()); | |
2245 | return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __c); | |
2246 | } | |
2247 | ||
2248 | /** | |
2249 | * @brief Replace range of characters with range. | |
2250 | * @param __i1 Iterator referencing start of range to replace. | |
2251 | * @param __i2 Iterator referencing end of range to replace. | |
2252 | * @param __k1 Iterator referencing start of range to insert. | |
2253 | * @param __k2 Iterator referencing end of range to insert. | |
2254 | * @return Reference to this string. | |
2255 | * @throw std::length_error If new length exceeds @c max_size(). | |
2256 | * | |
2257 | * Removes the characters in the range [__i1,__i2). In place, | |
2258 | * characters in the range [__k1,__k2) are inserted. If the | |
2259 | * length of result exceeds max_size(), length_error is thrown. | |
2260 | * The value of the string doesn't change if an error is | |
2261 | * thrown. | |
2262 | */ | |
2263 | #if __cplusplus >= 201103L | |
2264 | template<class _InputIterator, | |
2265 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 2266 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2267 | basic_string& |
2268 | replace(const_iterator __i1, const_iterator __i2, | |
2269 | _InputIterator __k1, _InputIterator __k2) | |
2270 | { | |
2271 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2272 | && __i2 <= end()); | |
2273 | __glibcxx_requires_valid_range(__k1, __k2); | |
2274 | return this->_M_replace_dispatch(__i1, __i2, __k1, __k2, | |
2275 | std::__false_type()); | |
2276 | } | |
2277 | #else | |
2278 | template<class _InputIterator> | |
2279 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
2280 | typename __enable_if_not_native_iterator<_InputIterator>::__type | |
2281 | #else | |
2282 | basic_string& | |
2283 | #endif | |
2284 | replace(iterator __i1, iterator __i2, | |
2285 | _InputIterator __k1, _InputIterator __k2) | |
2286 | { | |
2287 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2288 | && __i2 <= end()); | |
2289 | __glibcxx_requires_valid_range(__k1, __k2); | |
2290 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; | |
2291 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); | |
2292 | } | |
2293 | #endif | |
2294 | ||
2295 | // Specializations for the common case of pointer and iterator: | |
2296 | // useful to avoid the overhead of temporary buffering in _M_replace. | |
b96e2ff9 | 2297 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2298 | basic_string& |
2299 | replace(__const_iterator __i1, __const_iterator __i2, | |
2300 | _CharT* __k1, _CharT* __k2) | |
2301 | { | |
2302 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2303 | && __i2 <= end()); | |
2304 | __glibcxx_requires_valid_range(__k1, __k2); | |
2305 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2306 | __k1, __k2 - __k1); | |
2307 | } | |
2308 | ||
b96e2ff9 | 2309 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2310 | basic_string& |
2311 | replace(__const_iterator __i1, __const_iterator __i2, | |
2312 | const _CharT* __k1, const _CharT* __k2) | |
2313 | { | |
2314 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2315 | && __i2 <= end()); | |
2316 | __glibcxx_requires_valid_range(__k1, __k2); | |
2317 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2318 | __k1, __k2 - __k1); | |
2319 | } | |
2320 | ||
b96e2ff9 | 2321 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2322 | basic_string& |
2323 | replace(__const_iterator __i1, __const_iterator __i2, | |
2324 | iterator __k1, iterator __k2) | |
2325 | { | |
2326 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2327 | && __i2 <= end()); | |
2328 | __glibcxx_requires_valid_range(__k1, __k2); | |
2329 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2330 | __k1.base(), __k2 - __k1); | |
2331 | } | |
2332 | ||
b96e2ff9 | 2333 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2334 | basic_string& |
2335 | replace(__const_iterator __i1, __const_iterator __i2, | |
2336 | const_iterator __k1, const_iterator __k2) | |
2337 | { | |
2338 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2339 | && __i2 <= end()); | |
2340 | __glibcxx_requires_valid_range(__k1, __k2); | |
2341 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2342 | __k1.base(), __k2 - __k1); | |
2343 | } | |
2344 | ||
2345 | #if __cplusplus >= 201103L | |
2346 | /** | |
2347 | * @brief Replace range of characters with initializer_list. | |
2348 | * @param __i1 Iterator referencing start of range to replace. | |
2349 | * @param __i2 Iterator referencing end of range to replace. | |
2350 | * @param __l The initializer_list of characters to insert. | |
2351 | * @return Reference to this string. | |
2352 | * @throw std::length_error If new length exceeds @c max_size(). | |
2353 | * | |
2354 | * Removes the characters in the range [__i1,__i2). In place, | |
2355 | * characters in the range [__k1,__k2) are inserted. If the | |
2356 | * length of result exceeds max_size(), length_error is thrown. | |
2357 | * The value of the string doesn't change if an error is | |
2358 | * thrown. | |
2359 | */ | |
b96e2ff9 | 2360 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2361 | basic_string& replace(const_iterator __i1, const_iterator __i2, |
2362 | initializer_list<_CharT> __l) | |
17f8dc93 | 2363 | { return this->replace(__i1, __i2, __l.begin(), __l.size()); } |
34a2b755 JW |
2364 | #endif // C++11 |
2365 | ||
1a289fa3 | 2366 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2367 | /** |
2368 | * @brief Replace range of characters with string_view. | |
2369 | * @param __pos The position to replace at. | |
2370 | * @param __n The number of characters to replace. | |
df66af3b | 2371 | * @param __svt The object convertible to string_view to insert. |
ca8f2cb1 VV |
2372 | * @return Reference to this string. |
2373 | */ | |
df66af3b | 2374 | template<typename _Tp> |
b96e2ff9 | 2375 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2376 | _If_sv<_Tp, basic_string&> |
2377 | replace(size_type __pos, size_type __n, const _Tp& __svt) | |
2378 | { | |
2379 | __sv_type __sv = __svt; | |
2380 | return this->replace(__pos, __n, __sv.data(), __sv.size()); | |
2381 | } | |
ca8f2cb1 VV |
2382 | |
2383 | /** | |
2384 | * @brief Replace range of characters with string_view. | |
2385 | * @param __pos1 The position to replace at. | |
2386 | * @param __n1 The number of characters to replace. | |
df66af3b | 2387 | * @param __svt The object convertible to string_view to insert from. |
ca8f2cb1 VV |
2388 | * @param __pos2 The position in the string_view to insert from. |
2389 | * @param __n2 The number of characters to insert. | |
2390 | * @return Reference to this string. | |
2391 | */ | |
df66af3b | 2392 | template<typename _Tp> |
b96e2ff9 | 2393 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
2394 | _If_sv<_Tp, basic_string&> |
2395 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, | |
2396 | size_type __pos2, size_type __n2 = npos) | |
2397 | { | |
2398 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
2399 | return this->replace(__pos1, __n1, |
2400 | __sv.data() | |
2401 | + std::__sv_check(__sv.size(), __pos2, "basic_string::replace"), | |
2402 | std::__sv_limit(__sv.size(), __pos2, __n2)); | |
657213f7 | 2403 | } |
ca8f2cb1 VV |
2404 | |
2405 | /** | |
2406 | * @brief Replace range of characters with string_view. | |
2407 | * @param __i1 An iterator referencing the start position | |
2408 | to replace at. | |
2409 | * @param __i2 An iterator referencing the end position | |
2410 | for the replace. | |
df66af3b | 2411 | * @param __svt The object convertible to string_view to insert from. |
ca8f2cb1 VV |
2412 | * @return Reference to this string. |
2413 | */ | |
df66af3b | 2414 | template<typename _Tp> |
b96e2ff9 | 2415 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2416 | _If_sv<_Tp, basic_string&> |
2417 | replace(const_iterator __i1, const_iterator __i2, const _Tp& __svt) | |
2418 | { | |
2419 | __sv_type __sv = __svt; | |
2420 | return this->replace(__i1 - begin(), __i2 - __i1, __sv); | |
2421 | } | |
ca8f2cb1 VV |
2422 | #endif // C++17 |
2423 | ||
34a2b755 JW |
2424 | private: |
2425 | template<class _Integer> | |
b96e2ff9 | 2426 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2427 | basic_string& |
2428 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2429 | _Integer __n, _Integer __val, __true_type) | |
2430 | { return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __val); } | |
2431 | ||
2432 | template<class _InputIterator> | |
b96e2ff9 | 2433 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2434 | basic_string& |
2435 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2436 | _InputIterator __k1, _InputIterator __k2, | |
2437 | __false_type); | |
2438 | ||
b96e2ff9 | 2439 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2440 | basic_string& |
2441 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, | |
2442 | _CharT __c); | |
2443 | ||
b96e2ff9 | 2444 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2445 | basic_string& |
2446 | _M_replace(size_type __pos, size_type __len1, const _CharT* __s, | |
2447 | const size_type __len2); | |
2448 | ||
b96e2ff9 | 2449 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2450 | basic_string& |
2451 | _M_append(const _CharT* __s, size_type __n); | |
2452 | ||
2453 | public: | |
2454 | ||
2455 | /** | |
2456 | * @brief Copy substring into C string. | |
2457 | * @param __s C string to copy value into. | |
2458 | * @param __n Number of characters to copy. | |
2459 | * @param __pos Index of first character to copy. | |
2460 | * @return Number of characters actually copied | |
2461 | * @throw std::out_of_range If __pos > size(). | |
2462 | * | |
2463 | * Copies up to @a __n characters starting at @a __pos into the | |
2464 | * C string @a __s. If @a __pos is %greater than size(), | |
2465 | * out_of_range is thrown. | |
2466 | */ | |
b96e2ff9 | 2467 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2468 | size_type |
2469 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; | |
2470 | ||
2471 | /** | |
2472 | * @brief Swap contents with another string. | |
2473 | * @param __s String to swap with. | |
2474 | * | |
2475 | * Exchanges the contents of this string with that of @a __s in constant | |
2476 | * time. | |
2477 | */ | |
b96e2ff9 | 2478 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2479 | void |
2480 | swap(basic_string& __s) _GLIBCXX_NOEXCEPT; | |
2481 | ||
2482 | // String operations: | |
2483 | /** | |
2484 | * @brief Return const pointer to null-terminated contents. | |
2485 | * | |
2486 | * This is a handle to internal data. Do not modify or dire things may | |
2487 | * happen. | |
2488 | */ | |
b96e2ff9 | 2489 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2490 | const _CharT* |
2491 | c_str() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2492 | { return _M_data(); } |
34a2b755 JW |
2493 | |
2494 | /** | |
2495 | * @brief Return const pointer to contents. | |
2496 | * | |
92d58dee JW |
2497 | * This is a pointer to internal data. It is undefined to modify |
2498 | * the contents through the returned pointer. To get a pointer that | |
2499 | * allows modifying the contents use @c &str[0] instead, | |
2500 | * (or in C++17 the non-const @c str.data() overload). | |
34a2b755 | 2501 | */ |
b96e2ff9 | 2502 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2503 | const _CharT* |
2504 | data() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2505 | { return _M_data(); } |
34a2b755 | 2506 | |
1a289fa3 | 2507 | #if __cplusplus >= 201703L |
92d58dee JW |
2508 | /** |
2509 | * @brief Return non-const pointer to contents. | |
2510 | * | |
2511 | * This is a pointer to the character sequence held by the string. | |
2512 | * Modifying the characters in the sequence is allowed. | |
2513 | */ | |
b96e2ff9 | 2514 | _GLIBCXX20_CONSTEXPR |
92d58dee JW |
2515 | _CharT* |
2516 | data() noexcept | |
2517 | { return _M_data(); } | |
2518 | #endif | |
2519 | ||
34a2b755 JW |
2520 | /** |
2521 | * @brief Return copy of allocator used to construct this string. | |
2522 | */ | |
b96e2ff9 | 2523 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2524 | allocator_type |
2525 | get_allocator() const _GLIBCXX_NOEXCEPT | |
2526 | { return _M_get_allocator(); } | |
2527 | ||
2528 | /** | |
2529 | * @brief Find position of a C substring. | |
2530 | * @param __s C string to locate. | |
2531 | * @param __pos Index of character to search from. | |
2532 | * @param __n Number of characters from @a s to search for. | |
2533 | * @return Index of start of first occurrence. | |
2534 | * | |
2535 | * Starting from @a __pos, searches forward for the first @a | |
2536 | * __n characters in @a __s within this string. If found, | |
2537 | * returns the index where it begins. If not found, returns | |
2538 | * npos. | |
2539 | */ | |
b96e2ff9 | 2540 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2541 | size_type |
39a03251 JW |
2542 | find(const _CharT* __s, size_type __pos, size_type __n) const |
2543 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2544 | |
2545 | /** | |
2546 | * @brief Find position of a string. | |
2547 | * @param __str String to locate. | |
2548 | * @param __pos Index of character to search from (default 0). | |
2549 | * @return Index of start of first occurrence. | |
2550 | * | |
2551 | * Starting from @a __pos, searches forward for value of @a __str within | |
2552 | * this string. If found, returns the index where it begins. If not | |
2553 | * found, returns npos. | |
2554 | */ | |
b96e2ff9 | 2555 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2556 | size_type |
2557 | find(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2558 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2559 | { return this->find(__str.data(), __pos, __str.size()); } |
2560 | ||
1a289fa3 | 2561 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2562 | /** |
2563 | * @brief Find position of a string_view. | |
df66af3b | 2564 | * @param __svt The object convertible to string_view to locate. |
ca8f2cb1 VV |
2565 | * @param __pos Index of character to search from (default 0). |
2566 | * @return Index of start of first occurrence. | |
2567 | */ | |
df66af3b | 2568 | template<typename _Tp> |
b96e2ff9 | 2569 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2570 | _If_sv<_Tp, size_type> |
2571 | find(const _Tp& __svt, size_type __pos = 0) const | |
2572 | noexcept(is_same<_Tp, __sv_type>::value) | |
2573 | { | |
2574 | __sv_type __sv = __svt; | |
2575 | return this->find(__sv.data(), __pos, __sv.size()); | |
2576 | } | |
ca8f2cb1 VV |
2577 | #endif // C++17 |
2578 | ||
34a2b755 JW |
2579 | /** |
2580 | * @brief Find position of a C string. | |
2581 | * @param __s C string to locate. | |
2582 | * @param __pos Index of character to search from (default 0). | |
2583 | * @return Index of start of first occurrence. | |
2584 | * | |
2585 | * Starting from @a __pos, searches forward for the value of @a | |
2586 | * __s within this string. If found, returns the index where | |
2587 | * it begins. If not found, returns npos. | |
2588 | */ | |
b96e2ff9 | 2589 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2590 | size_type |
39a03251 | 2591 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2592 | { |
2593 | __glibcxx_requires_string(__s); | |
2594 | return this->find(__s, __pos, traits_type::length(__s)); | |
2595 | } | |
2596 | ||
2597 | /** | |
2598 | * @brief Find position of a character. | |
2599 | * @param __c Character to locate. | |
2600 | * @param __pos Index of character to search from (default 0). | |
2601 | * @return Index of first occurrence. | |
2602 | * | |
2603 | * Starting from @a __pos, searches forward for @a __c within | |
2604 | * this string. If found, returns the index where it was | |
2605 | * found. If not found, returns npos. | |
2606 | */ | |
b96e2ff9 | 2607 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2608 | size_type |
2609 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT; | |
2610 | ||
2611 | /** | |
2612 | * @brief Find last position of a string. | |
2613 | * @param __str String to locate. | |
2614 | * @param __pos Index of character to search back from (default end). | |
2615 | * @return Index of start of last occurrence. | |
2616 | * | |
2617 | * Starting from @a __pos, searches backward for value of @a | |
2618 | * __str within this string. If found, returns the index where | |
2619 | * it begins. If not found, returns npos. | |
2620 | */ | |
b96e2ff9 | 2621 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2622 | size_type |
2623 | rfind(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2624 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2625 | { return this->rfind(__str.data(), __pos, __str.size()); } |
2626 | ||
1a289fa3 | 2627 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2628 | /** |
2629 | * @brief Find last position of a string_view. | |
df66af3b | 2630 | * @param __svt The object convertible to string_view to locate. |
ca8f2cb1 VV |
2631 | * @param __pos Index of character to search back from (default end). |
2632 | * @return Index of start of last occurrence. | |
2633 | */ | |
df66af3b | 2634 | template<typename _Tp> |
b96e2ff9 | 2635 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2636 | _If_sv<_Tp, size_type> |
2637 | rfind(const _Tp& __svt, size_type __pos = npos) const | |
2638 | noexcept(is_same<_Tp, __sv_type>::value) | |
2639 | { | |
2640 | __sv_type __sv = __svt; | |
2641 | return this->rfind(__sv.data(), __pos, __sv.size()); | |
2642 | } | |
ca8f2cb1 VV |
2643 | #endif // C++17 |
2644 | ||
34a2b755 JW |
2645 | /** |
2646 | * @brief Find last position of a C substring. | |
2647 | * @param __s C string to locate. | |
2648 | * @param __pos Index of character to search back from. | |
2649 | * @param __n Number of characters from s to search for. | |
2650 | * @return Index of start of last occurrence. | |
2651 | * | |
2652 | * Starting from @a __pos, searches backward for the first @a | |
2653 | * __n characters in @a __s within this string. If found, | |
2654 | * returns the index where it begins. If not found, returns | |
2655 | * npos. | |
2656 | */ | |
b96e2ff9 | 2657 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2658 | size_type |
39a03251 JW |
2659 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
2660 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2661 | |
2662 | /** | |
2663 | * @brief Find last position of a C string. | |
2664 | * @param __s C string to locate. | |
2665 | * @param __pos Index of character to start search at (default end). | |
2666 | * @return Index of start of last occurrence. | |
2667 | * | |
2668 | * Starting from @a __pos, searches backward for the value of | |
2669 | * @a __s within this string. If found, returns the index | |
2670 | * where it begins. If not found, returns npos. | |
2671 | */ | |
b96e2ff9 | 2672 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2673 | size_type |
2674 | rfind(const _CharT* __s, size_type __pos = npos) const | |
2675 | { | |
2676 | __glibcxx_requires_string(__s); | |
2677 | return this->rfind(__s, __pos, traits_type::length(__s)); | |
2678 | } | |
2679 | ||
2680 | /** | |
2681 | * @brief Find last position of a character. | |
2682 | * @param __c Character to locate. | |
2683 | * @param __pos Index of character to search back from (default end). | |
2684 | * @return Index of last occurrence. | |
2685 | * | |
2686 | * Starting from @a __pos, searches backward for @a __c within | |
2687 | * this string. If found, returns the index where it was | |
2688 | * found. If not found, returns npos. | |
2689 | */ | |
b96e2ff9 | 2690 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2691 | size_type |
2692 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT; | |
2693 | ||
2694 | /** | |
2695 | * @brief Find position of a character of string. | |
2696 | * @param __str String containing characters to locate. | |
2697 | * @param __pos Index of character to search from (default 0). | |
2698 | * @return Index of first occurrence. | |
2699 | * | |
2700 | * Starting from @a __pos, searches forward for one of the | |
2701 | * characters of @a __str within this string. If found, | |
2702 | * returns the index where it was found. If not found, returns | |
2703 | * npos. | |
2704 | */ | |
b96e2ff9 | 2705 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2706 | size_type |
2707 | find_first_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2708 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2709 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
2710 | ||
1a289fa3 | 2711 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2712 | /** |
2713 | * @brief Find position of a character of a string_view. | |
df66af3b DK |
2714 | * @param __svt An object convertible to string_view containing |
2715 | * characters to locate. | |
ca8f2cb1 VV |
2716 | * @param __pos Index of character to search from (default 0). |
2717 | * @return Index of first occurrence. | |
2718 | */ | |
df66af3b | 2719 | template<typename _Tp> |
b96e2ff9 | 2720 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2721 | _If_sv<_Tp, size_type> |
2722 | find_first_of(const _Tp& __svt, size_type __pos = 0) const | |
2723 | noexcept(is_same<_Tp, __sv_type>::value) | |
2724 | { | |
2725 | __sv_type __sv = __svt; | |
2726 | return this->find_first_of(__sv.data(), __pos, __sv.size()); | |
2727 | } | |
ca8f2cb1 VV |
2728 | #endif // C++17 |
2729 | ||
34a2b755 JW |
2730 | /** |
2731 | * @brief Find position of a character of C substring. | |
2732 | * @param __s String containing characters to locate. | |
2733 | * @param __pos Index of character to search from. | |
2734 | * @param __n Number of characters from s to search for. | |
2735 | * @return Index of first occurrence. | |
2736 | * | |
2737 | * Starting from @a __pos, searches forward for one of the | |
2738 | * first @a __n characters of @a __s within this string. If | |
2739 | * found, returns the index where it was found. If not found, | |
2740 | * returns npos. | |
2741 | */ | |
b96e2ff9 | 2742 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2743 | size_type |
39a03251 JW |
2744 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
2745 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2746 | |
2747 | /** | |
2748 | * @brief Find position of a character of C string. | |
2749 | * @param __s String containing characters to locate. | |
2750 | * @param __pos Index of character to search from (default 0). | |
2751 | * @return Index of first occurrence. | |
2752 | * | |
2753 | * Starting from @a __pos, searches forward for one of the | |
2754 | * characters of @a __s within this string. If found, returns | |
2755 | * the index where it was found. If not found, returns npos. | |
2756 | */ | |
b96e2ff9 | 2757 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2758 | size_type |
2759 | find_first_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2760 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2761 | { |
2762 | __glibcxx_requires_string(__s); | |
2763 | return this->find_first_of(__s, __pos, traits_type::length(__s)); | |
2764 | } | |
2765 | ||
2766 | /** | |
2767 | * @brief Find position of a character. | |
2768 | * @param __c Character to locate. | |
2769 | * @param __pos Index of character to search from (default 0). | |
2770 | * @return Index of first occurrence. | |
2771 | * | |
2772 | * Starting from @a __pos, searches forward for the character | |
2773 | * @a __c within this string. If found, returns the index | |
2774 | * where it was found. If not found, returns npos. | |
2775 | * | |
2776 | * Note: equivalent to find(__c, __pos). | |
2777 | */ | |
b96e2ff9 | 2778 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2779 | size_type |
2780 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT | |
2781 | { return this->find(__c, __pos); } | |
2782 | ||
2783 | /** | |
2784 | * @brief Find last position of a character of string. | |
2785 | * @param __str String containing characters to locate. | |
2786 | * @param __pos Index of character to search back from (default end). | |
2787 | * @return Index of last occurrence. | |
2788 | * | |
2789 | * Starting from @a __pos, searches backward for one of the | |
2790 | * characters of @a __str within this string. If found, | |
2791 | * returns the index where it was found. If not found, returns | |
2792 | * npos. | |
2793 | */ | |
b96e2ff9 | 2794 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2795 | size_type |
2796 | find_last_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2797 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2798 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
2799 | ||
1a289fa3 | 2800 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2801 | /** |
2802 | * @brief Find last position of a character of string. | |
df66af3b DK |
2803 | * @param __svt An object convertible to string_view containing |
2804 | * characters to locate. | |
ca8f2cb1 VV |
2805 | * @param __pos Index of character to search back from (default end). |
2806 | * @return Index of last occurrence. | |
2807 | */ | |
df66af3b | 2808 | template<typename _Tp> |
b96e2ff9 | 2809 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2810 | _If_sv<_Tp, size_type> |
2811 | find_last_of(const _Tp& __svt, size_type __pos = npos) const | |
2812 | noexcept(is_same<_Tp, __sv_type>::value) | |
2813 | { | |
2814 | __sv_type __sv = __svt; | |
2815 | return this->find_last_of(__sv.data(), __pos, __sv.size()); | |
2816 | } | |
ca8f2cb1 VV |
2817 | #endif // C++17 |
2818 | ||
34a2b755 JW |
2819 | /** |
2820 | * @brief Find last position of a character of C substring. | |
2821 | * @param __s C string containing characters to locate. | |
2822 | * @param __pos Index of character to search back from. | |
2823 | * @param __n Number of characters from s to search for. | |
2824 | * @return Index of last occurrence. | |
2825 | * | |
2826 | * Starting from @a __pos, searches backward for one of the | |
2827 | * first @a __n characters of @a __s within this string. If | |
2828 | * found, returns the index where it was found. If not found, | |
2829 | * returns npos. | |
2830 | */ | |
b96e2ff9 | 2831 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2832 | size_type |
39a03251 JW |
2833 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
2834 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2835 | |
2836 | /** | |
2837 | * @brief Find last position of a character of C string. | |
2838 | * @param __s C string containing characters to locate. | |
2839 | * @param __pos Index of character to search back from (default end). | |
2840 | * @return Index of last occurrence. | |
2841 | * | |
2842 | * Starting from @a __pos, searches backward for one of the | |
2843 | * characters of @a __s within this string. If found, returns | |
2844 | * the index where it was found. If not found, returns npos. | |
2845 | */ | |
b96e2ff9 | 2846 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2847 | size_type |
2848 | find_last_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 2849 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2850 | { |
2851 | __glibcxx_requires_string(__s); | |
2852 | return this->find_last_of(__s, __pos, traits_type::length(__s)); | |
2853 | } | |
2854 | ||
2855 | /** | |
2856 | * @brief Find last position of a character. | |
2857 | * @param __c Character to locate. | |
2858 | * @param __pos Index of character to search back from (default end). | |
2859 | * @return Index of last occurrence. | |
2860 | * | |
2861 | * Starting from @a __pos, searches backward for @a __c within | |
2862 | * this string. If found, returns the index where it was | |
2863 | * found. If not found, returns npos. | |
2864 | * | |
2865 | * Note: equivalent to rfind(__c, __pos). | |
2866 | */ | |
b96e2ff9 | 2867 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2868 | size_type |
2869 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT | |
2870 | { return this->rfind(__c, __pos); } | |
2871 | ||
2872 | /** | |
2873 | * @brief Find position of a character not in string. | |
2874 | * @param __str String containing characters to avoid. | |
2875 | * @param __pos Index of character to search from (default 0). | |
2876 | * @return Index of first occurrence. | |
2877 | * | |
2878 | * Starting from @a __pos, searches forward for a character not contained | |
2879 | * in @a __str within this string. If found, returns the index where it | |
2880 | * was found. If not found, returns npos. | |
2881 | */ | |
b96e2ff9 | 2882 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2883 | size_type |
2884 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2885 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2886 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
2887 | ||
1a289fa3 | 2888 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2889 | /** |
2890 | * @brief Find position of a character not in a string_view. | |
df66af3b DK |
2891 | * @param __svt A object convertible to string_view containing |
2892 | * characters to avoid. | |
ca8f2cb1 VV |
2893 | * @param __pos Index of character to search from (default 0). |
2894 | * @return Index of first occurrence. | |
2895 | */ | |
df66af3b DK |
2896 | template<typename _Tp> |
2897 | _If_sv<_Tp, size_type> | |
b96e2ff9 | 2898 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2899 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const |
2900 | noexcept(is_same<_Tp, __sv_type>::value) | |
2901 | { | |
2902 | __sv_type __sv = __svt; | |
2903 | return this->find_first_not_of(__sv.data(), __pos, __sv.size()); | |
2904 | } | |
ca8f2cb1 VV |
2905 | #endif // C++17 |
2906 | ||
34a2b755 JW |
2907 | /** |
2908 | * @brief Find position of a character not in C substring. | |
2909 | * @param __s C string containing characters to avoid. | |
2910 | * @param __pos Index of character to search from. | |
2911 | * @param __n Number of characters from __s to consider. | |
2912 | * @return Index of first occurrence. | |
2913 | * | |
2914 | * Starting from @a __pos, searches forward for a character not | |
2915 | * contained in the first @a __n characters of @a __s within | |
2916 | * this string. If found, returns the index where it was | |
2917 | * found. If not found, returns npos. | |
2918 | */ | |
b96e2ff9 | 2919 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2920 | size_type |
2921 | find_first_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 2922 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2923 | |
2924 | /** | |
2925 | * @brief Find position of a character not in C string. | |
2926 | * @param __s C string containing characters to avoid. | |
2927 | * @param __pos Index of character to search from (default 0). | |
2928 | * @return Index of first occurrence. | |
2929 | * | |
2930 | * Starting from @a __pos, searches forward for a character not | |
2931 | * contained in @a __s within this string. If found, returns | |
2932 | * the index where it was found. If not found, returns npos. | |
2933 | */ | |
b96e2ff9 | 2934 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2935 | size_type |
2936 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2937 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2938 | { |
2939 | __glibcxx_requires_string(__s); | |
2940 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); | |
2941 | } | |
2942 | ||
2943 | /** | |
2944 | * @brief Find position of a different character. | |
2945 | * @param __c Character to avoid. | |
2946 | * @param __pos Index of character to search from (default 0). | |
2947 | * @return Index of first occurrence. | |
2948 | * | |
2949 | * Starting from @a __pos, searches forward for a character | |
2950 | * other than @a __c within this string. If found, returns the | |
2951 | * index where it was found. If not found, returns npos. | |
2952 | */ | |
b96e2ff9 | 2953 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2954 | size_type |
2955 | find_first_not_of(_CharT __c, size_type __pos = 0) const | |
39a03251 | 2956 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2957 | |
2958 | /** | |
2959 | * @brief Find last position of a character not in string. | |
2960 | * @param __str String containing characters to avoid. | |
2961 | * @param __pos Index of character to search back from (default end). | |
2962 | * @return Index of last occurrence. | |
2963 | * | |
2964 | * Starting from @a __pos, searches backward for a character | |
2965 | * not contained in @a __str within this string. If found, | |
2966 | * returns the index where it was found. If not found, returns | |
2967 | * npos. | |
2968 | */ | |
b96e2ff9 | 2969 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2970 | size_type |
2971 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2972 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2973 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
2974 | ||
1a289fa3 | 2975 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2976 | /** |
2977 | * @brief Find last position of a character not in a string_view. | |
df66af3b DK |
2978 | * @param __svt An object convertible to string_view containing |
2979 | * characters to avoid. | |
ca8f2cb1 VV |
2980 | * @param __pos Index of character to search back from (default end). |
2981 | * @return Index of last occurrence. | |
2982 | */ | |
df66af3b | 2983 | template<typename _Tp> |
b96e2ff9 | 2984 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2985 | _If_sv<_Tp, size_type> |
2986 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const | |
2987 | noexcept(is_same<_Tp, __sv_type>::value) | |
2988 | { | |
2989 | __sv_type __sv = __svt; | |
2990 | return this->find_last_not_of(__sv.data(), __pos, __sv.size()); | |
2991 | } | |
ca8f2cb1 VV |
2992 | #endif // C++17 |
2993 | ||
34a2b755 JW |
2994 | /** |
2995 | * @brief Find last position of a character not in C substring. | |
2996 | * @param __s C string containing characters to avoid. | |
2997 | * @param __pos Index of character to search back from. | |
2998 | * @param __n Number of characters from s to consider. | |
2999 | * @return Index of last occurrence. | |
3000 | * | |
3001 | * Starting from @a __pos, searches backward for a character not | |
3002 | * contained in the first @a __n characters of @a __s within this string. | |
3003 | * If found, returns the index where it was found. If not found, | |
3004 | * returns npos. | |
3005 | */ | |
b96e2ff9 | 3006 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3007 | size_type |
3008 | find_last_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 3009 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3010 | /** |
3011 | * @brief Find last position of a character not in C string. | |
3012 | * @param __s C string containing characters to avoid. | |
3013 | * @param __pos Index of character to search back from (default end). | |
3014 | * @return Index of last occurrence. | |
3015 | * | |
3016 | * Starting from @a __pos, searches backward for a character | |
3017 | * not contained in @a __s within this string. If found, | |
3018 | * returns the index where it was found. If not found, returns | |
3019 | * npos. | |
3020 | */ | |
b96e2ff9 | 3021 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3022 | size_type |
3023 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 3024 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
3025 | { |
3026 | __glibcxx_requires_string(__s); | |
3027 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); | |
3028 | } | |
3029 | ||
3030 | /** | |
3031 | * @brief Find last position of a different character. | |
3032 | * @param __c Character to avoid. | |
3033 | * @param __pos Index of character to search back from (default end). | |
3034 | * @return Index of last occurrence. | |
3035 | * | |
3036 | * Starting from @a __pos, searches backward for a character other than | |
3037 | * @a __c within this string. If found, returns the index where it was | |
3038 | * found. If not found, returns npos. | |
3039 | */ | |
b96e2ff9 | 3040 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3041 | size_type |
3042 | find_last_not_of(_CharT __c, size_type __pos = npos) const | |
39a03251 | 3043 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3044 | |
3045 | /** | |
3046 | * @brief Get a substring. | |
3047 | * @param __pos Index of first character (default 0). | |
3048 | * @param __n Number of characters in substring (default remainder). | |
3049 | * @return The new string. | |
3050 | * @throw std::out_of_range If __pos > size(). | |
3051 | * | |
3052 | * Construct and return a new string using the @a __n | |
3053 | * characters starting at @a __pos. If the string is too | |
3054 | * short, use the remainder of the characters. If @a __pos is | |
3055 | * beyond the end of the string, out_of_range is thrown. | |
3056 | */ | |
b96e2ff9 | 3057 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3058 | basic_string |
3059 | substr(size_type __pos = 0, size_type __n = npos) const | |
3060 | { return basic_string(*this, | |
3061 | _M_check(__pos, "basic_string::substr"), __n); } | |
3062 | ||
3063 | /** | |
3064 | * @brief Compare to a string. | |
3065 | * @param __str String to compare against. | |
3066 | * @return Integer < 0, 0, or > 0. | |
3067 | * | |
3068 | * Returns an integer < 0 if this string is ordered before @a | |
3069 | * __str, 0 if their values are equivalent, or > 0 if this | |
3070 | * string is ordered after @a __str. Determines the effective | |
3071 | * length rlen of the strings to compare as the smallest of | |
3072 | * size() and str.size(). The function then compares the two | |
3073 | * strings by calling traits::compare(data(), str.data(),rlen). | |
3074 | * If the result of the comparison is nonzero returns it, | |
3075 | * otherwise the shorter one is ordered first. | |
3076 | */ | |
b96e2ff9 | 3077 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3078 | int |
3079 | compare(const basic_string& __str) const | |
3080 | { | |
3081 | const size_type __size = this->size(); | |
3082 | const size_type __osize = __str.size(); | |
3083 | const size_type __len = std::min(__size, __osize); | |
3084 | ||
2d60da10 | 3085 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
34a2b755 JW |
3086 | if (!__r) |
3087 | __r = _S_compare(__size, __osize); | |
3088 | return __r; | |
3089 | } | |
3090 | ||
1a289fa3 | 3091 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
3092 | /** |
3093 | * @brief Compare to a string_view. | |
df66af3b | 3094 | * @param __svt An object convertible to string_view to compare against. |
ca8f2cb1 VV |
3095 | * @return Integer < 0, 0, or > 0. |
3096 | */ | |
df66af3b | 3097 | template<typename _Tp> |
b96e2ff9 | 3098 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
3099 | _If_sv<_Tp, int> |
3100 | compare(const _Tp& __svt) const | |
3101 | noexcept(is_same<_Tp, __sv_type>::value) | |
3102 | { | |
3103 | __sv_type __sv = __svt; | |
3104 | const size_type __size = this->size(); | |
3105 | const size_type __osize = __sv.size(); | |
3106 | const size_type __len = std::min(__size, __osize); | |
3107 | ||
3108 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); | |
3109 | if (!__r) | |
3110 | __r = _S_compare(__size, __osize); | |
3111 | return __r; | |
3112 | } | |
ca8f2cb1 VV |
3113 | |
3114 | /** | |
3115 | * @brief Compare to a string_view. | |
3116 | * @param __pos A position in the string to start comparing from. | |
3117 | * @param __n The number of characters to compare. | |
df66af3b DK |
3118 | * @param __svt An object convertible to string_view to compare |
3119 | * against. | |
ca8f2cb1 VV |
3120 | * @return Integer < 0, 0, or > 0. |
3121 | */ | |
df66af3b | 3122 | template<typename _Tp> |
b96e2ff9 | 3123 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
3124 | _If_sv<_Tp, int> |
3125 | compare(size_type __pos, size_type __n, const _Tp& __svt) const | |
3126 | noexcept(is_same<_Tp, __sv_type>::value) | |
3127 | { | |
3128 | __sv_type __sv = __svt; | |
3129 | return __sv_type(*this).substr(__pos, __n).compare(__sv); | |
3130 | } | |
ca8f2cb1 VV |
3131 | |
3132 | /** | |
3133 | * @brief Compare to a string_view. | |
3134 | * @param __pos1 A position in the string to start comparing from. | |
3135 | * @param __n1 The number of characters to compare. | |
df66af3b DK |
3136 | * @param __svt An object convertible to string_view to compare |
3137 | * against. | |
ca8f2cb1 VV |
3138 | * @param __pos2 A position in the string_view to start comparing from. |
3139 | * @param __n2 The number of characters to compare. | |
3140 | * @return Integer < 0, 0, or > 0. | |
3141 | */ | |
df66af3b | 3142 | template<typename _Tp> |
b96e2ff9 | 3143 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
3144 | _If_sv<_Tp, int> |
3145 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, | |
3146 | size_type __pos2, size_type __n2 = npos) const | |
df66af3b | 3147 | noexcept(is_same<_Tp, __sv_type>::value) |
657213f7 JW |
3148 | { |
3149 | __sv_type __sv = __svt; | |
3150 | return __sv_type(*this) | |
3151 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); | |
3152 | } | |
ca8f2cb1 VV |
3153 | #endif // C++17 |
3154 | ||
34a2b755 JW |
3155 | /** |
3156 | * @brief Compare substring to a string. | |
3157 | * @param __pos Index of first character of substring. | |
3158 | * @param __n Number of characters in substring. | |
3159 | * @param __str String to compare against. | |
3160 | * @return Integer < 0, 0, or > 0. | |
3161 | * | |
3162 | * Form the substring of this string from the @a __n characters | |
3163 | * starting at @a __pos. Returns an integer < 0 if the | |
3164 | * substring is ordered before @a __str, 0 if their values are | |
3165 | * equivalent, or > 0 if the substring is ordered after @a | |
3166 | * __str. Determines the effective length rlen of the strings | |
3167 | * to compare as the smallest of the length of the substring | |
3168 | * and @a __str.size(). The function then compares the two | |
3169 | * strings by calling | |
3170 | * traits::compare(substring.data(),str.data(),rlen). If the | |
3171 | * result of the comparison is nonzero returns it, otherwise | |
3172 | * the shorter one is ordered first. | |
3173 | */ | |
b96e2ff9 | 3174 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3175 | int |
3176 | compare(size_type __pos, size_type __n, const basic_string& __str) const; | |
3177 | ||
3178 | /** | |
3179 | * @brief Compare substring to a substring. | |
3180 | * @param __pos1 Index of first character of substring. | |
3181 | * @param __n1 Number of characters in substring. | |
3182 | * @param __str String to compare against. | |
3183 | * @param __pos2 Index of first character of substring of str. | |
3184 | * @param __n2 Number of characters in substring of str. | |
3185 | * @return Integer < 0, 0, or > 0. | |
3186 | * | |
3187 | * Form the substring of this string from the @a __n1 | |
3188 | * characters starting at @a __pos1. Form the substring of @a | |
3189 | * __str from the @a __n2 characters starting at @a __pos2. | |
3190 | * Returns an integer < 0 if this substring is ordered before | |
3191 | * the substring of @a __str, 0 if their values are equivalent, | |
3192 | * or > 0 if this substring is ordered after the substring of | |
3193 | * @a __str. Determines the effective length rlen of the | |
3194 | * strings to compare as the smallest of the lengths of the | |
3195 | * substrings. The function then compares the two strings by | |
3196 | * calling | |
3197 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). | |
3198 | * If the result of the comparison is nonzero returns it, | |
3199 | * otherwise the shorter one is ordered first. | |
3200 | */ | |
b96e2ff9 | 3201 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3202 | int |
3203 | compare(size_type __pos1, size_type __n1, const basic_string& __str, | |
852ee53c | 3204 | size_type __pos2, size_type __n2 = npos) const; |
34a2b755 JW |
3205 | |
3206 | /** | |
3207 | * @brief Compare to a C string. | |
3208 | * @param __s C string to compare against. | |
3209 | * @return Integer < 0, 0, or > 0. | |
3210 | * | |
3211 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if | |
3212 | * their values are equivalent, or > 0 if this string is ordered after | |
3213 | * @a __s. Determines the effective length rlen of the strings to | |
3214 | * compare as the smallest of size() and the length of a string | |
3215 | * constructed from @a __s. The function then compares the two strings | |
3216 | * by calling traits::compare(data(),s,rlen). If the result of the | |
3217 | * comparison is nonzero returns it, otherwise the shorter one is | |
3218 | * ordered first. | |
3219 | */ | |
b96e2ff9 | 3220 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 3221 | int |
39a03251 | 3222 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3223 | |
3224 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3225 | // 5 String::compare specification questionable | |
3226 | /** | |
3227 | * @brief Compare substring to a C string. | |
3228 | * @param __pos Index of first character of substring. | |
3229 | * @param __n1 Number of characters in substring. | |
3230 | * @param __s C string to compare against. | |
3231 | * @return Integer < 0, 0, or > 0. | |
3232 | * | |
3233 | * Form the substring of this string from the @a __n1 | |
3234 | * characters starting at @a pos. Returns an integer < 0 if | |
3235 | * the substring is ordered before @a __s, 0 if their values | |
3236 | * are equivalent, or > 0 if the substring is ordered after @a | |
3237 | * __s. Determines the effective length rlen of the strings to | |
3238 | * compare as the smallest of the length of the substring and | |
3239 | * the length of a string constructed from @a __s. The | |
3240 | * function then compares the two string by calling | |
3241 | * traits::compare(substring.data(),__s,rlen). If the result of | |
3242 | * the comparison is nonzero returns it, otherwise the shorter | |
3243 | * one is ordered first. | |
3244 | */ | |
b96e2ff9 | 3245 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3246 | int |
3247 | compare(size_type __pos, size_type __n1, const _CharT* __s) const; | |
3248 | ||
3249 | /** | |
3250 | * @brief Compare substring against a character %array. | |
3251 | * @param __pos Index of first character of substring. | |
3252 | * @param __n1 Number of characters in substring. | |
3253 | * @param __s character %array to compare against. | |
3254 | * @param __n2 Number of characters of s. | |
3255 | * @return Integer < 0, 0, or > 0. | |
3256 | * | |
3257 | * Form the substring of this string from the @a __n1 | |
3258 | * characters starting at @a __pos. Form a string from the | |
3259 | * first @a __n2 characters of @a __s. Returns an integer < 0 | |
3260 | * if this substring is ordered before the string from @a __s, | |
3261 | * 0 if their values are equivalent, or > 0 if this substring | |
3262 | * is ordered after the string from @a __s. Determines the | |
3263 | * effective length rlen of the strings to compare as the | |
3264 | * smallest of the length of the substring and @a __n2. The | |
3265 | * function then compares the two strings by calling | |
3266 | * traits::compare(substring.data(),s,rlen). If the result of | |
3267 | * the comparison is nonzero returns it, otherwise the shorter | |
3268 | * one is ordered first. | |
3269 | * | |
3270 | * NB: s must have at least n2 characters, '\\0' has | |
3271 | * no special meaning. | |
3272 | */ | |
b96e2ff9 | 3273 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3274 | int |
3275 | compare(size_type __pos, size_type __n1, const _CharT* __s, | |
3276 | size_type __n2) const; | |
93ef155b | 3277 | |
b96e2ff9 ML |
3278 | #if __cplusplus >= 202002L |
3279 | constexpr bool | |
5bd624fb ESR |
3280 | starts_with(basic_string_view<_CharT, _Traits> __x) const noexcept |
3281 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3282 | ||
b96e2ff9 | 3283 | constexpr bool |
5bd624fb ESR |
3284 | starts_with(_CharT __x) const noexcept |
3285 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3286 | ||
b96e2ff9 | 3287 | constexpr bool |
5bd624fb ESR |
3288 | starts_with(const _CharT* __x) const noexcept |
3289 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3290 | ||
b96e2ff9 | 3291 | constexpr bool |
5bd624fb ESR |
3292 | ends_with(basic_string_view<_CharT, _Traits> __x) const noexcept |
3293 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3294 | ||
b96e2ff9 | 3295 | constexpr bool |
5bd624fb ESR |
3296 | ends_with(_CharT __x) const noexcept |
3297 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3298 | ||
b96e2ff9 | 3299 | constexpr bool |
5bd624fb ESR |
3300 | ends_with(const _CharT* __x) const noexcept |
3301 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3302 | #endif // C++20 | |
3303 | ||
f004d6d9 | 3304 | #if __cplusplus > 202002L |
b96e2ff9 | 3305 | constexpr bool |
f004d6d9 PF |
3306 | contains(basic_string_view<_CharT, _Traits> __x) const noexcept |
3307 | { return __sv_type(this->data(), this->size()).contains(__x); } | |
3308 | ||
b96e2ff9 | 3309 | constexpr bool |
f004d6d9 PF |
3310 | contains(_CharT __x) const noexcept |
3311 | { return __sv_type(this->data(), this->size()).contains(__x); } | |
3312 | ||
b96e2ff9 | 3313 | constexpr bool |
f004d6d9 PF |
3314 | contains(const _CharT* __x) const noexcept |
3315 | { return __sv_type(this->data(), this->size()).contains(__x); } | |
3316 | #endif // C++23 | |
3317 | ||
93ef155b JW |
3318 | // Allow basic_stringbuf::__xfer_bufptrs to call _M_length: |
3319 | template<typename, typename, typename> friend class basic_stringbuf; | |
3320 | }; | |
34a2b755 | 3321 | _GLIBCXX_END_NAMESPACE_CXX11 |
7b527614 JW |
3322 | _GLIBCXX_END_NAMESPACE_VERSION |
3323 | } // namespace std | |
3324 | #endif // _GLIBCXX_USE_CXX11_ABI | |
ec61e852 | 3325 | |
7b527614 JW |
3326 | namespace std _GLIBCXX_VISIBILITY(default) |
3327 | { | |
3328 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
725dc051 | 3329 | |
6d82c562 JW |
3330 | #if __cpp_deduction_guides >= 201606 |
3331 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 | |
3332 | template<typename _InputIterator, typename _CharT | |
3333 | = typename iterator_traits<_InputIterator>::value_type, | |
3334 | typename _Allocator = allocator<_CharT>, | |
3335 | typename = _RequireInputIter<_InputIterator>, | |
3336 | typename = _RequireAllocator<_Allocator>> | |
3337 | basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator()) | |
3338 | -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; | |
53e926c8 JW |
3339 | |
3340 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3341 | // 3075. basic_string needs deduction guides from basic_string_view | |
3342 | template<typename _CharT, typename _Traits, | |
3343 | typename _Allocator = allocator<_CharT>, | |
3344 | typename = _RequireAllocator<_Allocator>> | |
3345 | basic_string(basic_string_view<_CharT, _Traits>, const _Allocator& = _Allocator()) | |
3346 | -> basic_string<_CharT, _Traits, _Allocator>; | |
3347 | ||
3348 | template<typename _CharT, typename _Traits, | |
3349 | typename _Allocator = allocator<_CharT>, | |
3350 | typename = _RequireAllocator<_Allocator>> | |
3351 | basic_string(basic_string_view<_CharT, _Traits>, | |
3352 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, | |
3353 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, | |
3354 | const _Allocator& = _Allocator()) | |
3355 | -> basic_string<_CharT, _Traits, _Allocator>; | |
6d82c562 JW |
3356 | _GLIBCXX_END_NAMESPACE_CXX11 |
3357 | #endif | |
3358 | ||
725dc051 | 3359 | // operator+ |
284f19bf JQ |
3360 | /** |
3361 | * @brief Concatenate two strings. | |
93c66bc6 BK |
3362 | * @param __lhs First string. |
3363 | * @param __rhs Last string. | |
3364 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 3365 | */ |
41b8e86c | 3366 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3367 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3368 | basic_string<_CharT, _Traits, _Alloc> |
3369 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3370 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3371 | { | |
3372 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
3373 | __str.append(__rhs); | |
3374 | return __str; | |
3375 | } | |
3376 | ||
284f19bf JQ |
3377 | /** |
3378 | * @brief Concatenate C string and string. | |
93c66bc6 BK |
3379 | * @param __lhs First string. |
3380 | * @param __rhs Last string. | |
3381 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 3382 | */ |
725dc051 | 3383 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3384 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3385 | basic_string<_CharT,_Traits,_Alloc> |
3386 | operator+(const _CharT* __lhs, | |
3387 | const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
3388 | ||
284f19bf JQ |
3389 | /** |
3390 | * @brief Concatenate character and string. | |
93c66bc6 BK |
3391 | * @param __lhs First string. |
3392 | * @param __rhs Last string. | |
3393 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 3394 | */ |
725dc051 | 3395 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3396 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3397 | basic_string<_CharT,_Traits,_Alloc> |
3398 | operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
3399 | ||
284f19bf JQ |
3400 | /** |
3401 | * @brief Concatenate string and C string. | |
93c66bc6 BK |
3402 | * @param __lhs First string. |
3403 | * @param __rhs Last string. | |
3404 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 3405 | */ |
725dc051 | 3406 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3407 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3408 | inline basic_string<_CharT, _Traits, _Alloc> |
3409 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
34a2b755 | 3410 | const _CharT* __rhs) |
725dc051 BK |
3411 | { |
3412 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
3413 | __str.append(__rhs); | |
3414 | return __str; | |
3415 | } | |
3416 | ||
284f19bf JQ |
3417 | /** |
3418 | * @brief Concatenate string and character. | |
93c66bc6 BK |
3419 | * @param __lhs First string. |
3420 | * @param __rhs Last string. | |
3421 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 3422 | */ |
725dc051 | 3423 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3424 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3425 | inline basic_string<_CharT, _Traits, _Alloc> |
3426 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs) | |
3427 | { | |
ed6814f7 | 3428 | typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
725dc051 BK |
3429 | typedef typename __string_type::size_type __size_type; |
3430 | __string_type __str(__lhs); | |
3431 | __str.append(__size_type(1), __rhs); | |
3432 | return __str; | |
3433 | } | |
3434 | ||
734f5023 | 3435 | #if __cplusplus >= 201103L |
ce99f498 | 3436 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3437 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3438 | inline basic_string<_CharT, _Traits, _Alloc> |
3439 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3440 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3441 | { return std::move(__lhs.append(__rhs)); } | |
3442 | ||
3443 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3444 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3445 | inline basic_string<_CharT, _Traits, _Alloc> |
3446 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3447 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
3448 | { return std::move(__rhs.insert(0, __lhs)); } | |
3449 | ||
3450 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3451 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3452 | inline basic_string<_CharT, _Traits, _Alloc> |
3453 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3454 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
37a68925 | 3455 | { |
f4e678ef NDR |
3456 | #if _GLIBCXX_USE_CXX11_ABI |
3457 | using _Alloc_traits = allocator_traits<_Alloc>; | |
3458 | bool __use_rhs = false; | |
3459 | if _GLIBCXX17_CONSTEXPR (typename _Alloc_traits::is_always_equal{}) | |
3460 | __use_rhs = true; | |
3461 | else if (__lhs.get_allocator() == __rhs.get_allocator()) | |
3462 | __use_rhs = true; | |
3463 | if (__use_rhs) | |
3464 | #endif | |
3465 | { | |
3466 | const auto __size = __lhs.size() + __rhs.size(); | |
3467 | if (__size > __lhs.capacity() && __size <= __rhs.capacity()) | |
3468 | return std::move(__rhs.insert(0, __lhs)); | |
3469 | } | |
3470 | return std::move(__lhs.append(__rhs)); | |
37a68925 | 3471 | } |
ce99f498 PC |
3472 | |
3473 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3474 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3475 | inline basic_string<_CharT, _Traits, _Alloc> |
3476 | operator+(const _CharT* __lhs, | |
3477 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
3478 | { return std::move(__rhs.insert(0, __lhs)); } | |
3479 | ||
3480 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3481 | _GLIBCXX20_CONSTEXPR |
ce99f498 | 3482 | inline basic_string<_CharT, _Traits, _Alloc> |
37a68925 PC |
3483 | operator+(_CharT __lhs, |
3484 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
ce99f498 PC |
3485 | { return std::move(__rhs.insert(0, 1, __lhs)); } |
3486 | ||
3487 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3488 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3489 | inline basic_string<_CharT, _Traits, _Alloc> |
3490 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3491 | const _CharT* __rhs) | |
3492 | { return std::move(__lhs.append(__rhs)); } | |
3493 | ||
3494 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3495 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3496 | inline basic_string<_CharT, _Traits, _Alloc> |
3497 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3498 | _CharT __rhs) | |
3499 | { return std::move(__lhs.append(1, __rhs)); } | |
3500 | #endif | |
3501 | ||
725dc051 | 3502 | // operator == |
284f19bf JQ |
3503 | /** |
3504 | * @brief Test equivalence of two strings. | |
93c66bc6 BK |
3505 | * @param __lhs First string. |
3506 | * @param __rhs Second string. | |
3507 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 3508 | */ |
725dc051 | 3509 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3510 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3511 | inline bool |
3512 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3513 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3514 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3515 | { return __lhs.compare(__rhs) == 0; } |
3516 | ||
bd12160a | 3517 | template<typename _CharT> |
b96e2ff9 | 3518 | _GLIBCXX20_CONSTEXPR |
bd12160a PC |
3519 | inline |
3520 | typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, bool>::__type | |
3521 | operator==(const basic_string<_CharT>& __lhs, | |
5caff414 | 3522 | const basic_string<_CharT>& __rhs) _GLIBCXX_NOEXCEPT |
bd12160a PC |
3523 | { return (__lhs.size() == __rhs.size() |
3524 | && !std::char_traits<_CharT>::compare(__lhs.data(), __rhs.data(), | |
3525 | __lhs.size())); } | |
3526 | ||
284f19bf JQ |
3527 | /** |
3528 | * @brief Test equivalence of string and C string. | |
93c66bc6 BK |
3529 | * @param __lhs String. |
3530 | * @param __rhs C string. | |
3531 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 3532 | */ |
725dc051 | 3533 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3534 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3535 | inline bool |
3536 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3537 | const _CharT* __rhs) | |
3538 | { return __lhs.compare(__rhs) == 0; } | |
3539 | ||
875d6cb3 JW |
3540 | #if __cpp_lib_three_way_comparison |
3541 | /** | |
3542 | * @brief Three-way comparison of a string and a C string. | |
3543 | * @param __lhs A string. | |
3544 | * @param __rhs A null-terminated string. | |
3545 | * @return A value indicating whether `__lhs` is less than, equal to, | |
3546 | * greater than, or incomparable with `__rhs`. | |
3547 | */ | |
3548 | template<typename _CharT, typename _Traits, typename _Alloc> | |
73e4d9f1 | 3549 | constexpr auto |
875d6cb3 JW |
3550 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
3551 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) noexcept | |
3552 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) | |
3553 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } | |
3554 | ||
3555 | /** | |
3556 | * @brief Three-way comparison of a string and a C string. | |
3557 | * @param __lhs A string. | |
3558 | * @param __rhs A null-terminated string. | |
3559 | * @return A value indicating whether `__lhs` is less than, equal to, | |
3560 | * greater than, or incomparable with `__rhs`. | |
3561 | */ | |
3562 | template<typename _CharT, typename _Traits, typename _Alloc> | |
73e4d9f1 | 3563 | constexpr auto |
875d6cb3 JW |
3564 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
3565 | const _CharT* __rhs) noexcept | |
3566 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) | |
3567 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } | |
3568 | #else | |
3569 | /** | |
3570 | * @brief Test equivalence of C string and string. | |
3571 | * @param __lhs C string. | |
3572 | * @param __rhs String. | |
3573 | * @return True if @a __rhs.compare(@a __lhs) == 0. False otherwise. | |
3574 | */ | |
3575 | template<typename _CharT, typename _Traits, typename _Alloc> | |
3576 | inline bool | |
3577 | operator==(const _CharT* __lhs, | |
3578 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3579 | { return __rhs.compare(__lhs) == 0; } | |
3580 | ||
725dc051 | 3581 | // operator != |
284f19bf JQ |
3582 | /** |
3583 | * @brief Test difference of two strings. | |
93c66bc6 BK |
3584 | * @param __lhs First string. |
3585 | * @param __rhs Second string. | |
3586 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 3587 | */ |
725dc051 BK |
3588 | template<typename _CharT, typename _Traits, typename _Alloc> |
3589 | inline bool | |
3590 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3591 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3592 | _GLIBCXX_NOEXCEPT |
bd12160a | 3593 | { return !(__lhs == __rhs); } |
725dc051 | 3594 | |
284f19bf JQ |
3595 | /** |
3596 | * @brief Test difference of C string and string. | |
93c66bc6 BK |
3597 | * @param __lhs C string. |
3598 | * @param __rhs String. | |
3599 | * @return True if @a __rhs.compare(@a __lhs) != 0. False otherwise. | |
ed6814f7 | 3600 | */ |
725dc051 BK |
3601 | template<typename _CharT, typename _Traits, typename _Alloc> |
3602 | inline bool | |
3603 | operator!=(const _CharT* __lhs, | |
3604 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
bd12160a | 3605 | { return !(__lhs == __rhs); } |
725dc051 | 3606 | |
284f19bf JQ |
3607 | /** |
3608 | * @brief Test difference of string and C string. | |
93c66bc6 BK |
3609 | * @param __lhs String. |
3610 | * @param __rhs C string. | |
3611 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 3612 | */ |
725dc051 BK |
3613 | template<typename _CharT, typename _Traits, typename _Alloc> |
3614 | inline bool | |
3615 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3616 | const _CharT* __rhs) | |
bd12160a | 3617 | { return !(__lhs == __rhs); } |
725dc051 BK |
3618 | |
3619 | // operator < | |
284f19bf JQ |
3620 | /** |
3621 | * @brief Test if string precedes string. | |
93c66bc6 BK |
3622 | * @param __lhs First string. |
3623 | * @param __rhs Second string. | |
3624 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 3625 | */ |
725dc051 BK |
3626 | template<typename _CharT, typename _Traits, typename _Alloc> |
3627 | inline bool | |
3628 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3629 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3630 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3631 | { return __lhs.compare(__rhs) < 0; } |
3632 | ||
284f19bf JQ |
3633 | /** |
3634 | * @brief Test if string precedes C string. | |
93c66bc6 BK |
3635 | * @param __lhs String. |
3636 | * @param __rhs C string. | |
3637 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 3638 | */ |
725dc051 BK |
3639 | template<typename _CharT, typename _Traits, typename _Alloc> |
3640 | inline bool | |
3641 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3642 | const _CharT* __rhs) | |
3643 | { return __lhs.compare(__rhs) < 0; } | |
3644 | ||
284f19bf JQ |
3645 | /** |
3646 | * @brief Test if C string precedes string. | |
93c66bc6 BK |
3647 | * @param __lhs C string. |
3648 | * @param __rhs String. | |
3649 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 3650 | */ |
725dc051 BK |
3651 | template<typename _CharT, typename _Traits, typename _Alloc> |
3652 | inline bool | |
3653 | operator<(const _CharT* __lhs, | |
3654 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3655 | { return __rhs.compare(__lhs) > 0; } | |
3656 | ||
3657 | // operator > | |
284f19bf JQ |
3658 | /** |
3659 | * @brief Test if string follows string. | |
93c66bc6 BK |
3660 | * @param __lhs First string. |
3661 | * @param __rhs Second string. | |
3662 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 3663 | */ |
725dc051 BK |
3664 | template<typename _CharT, typename _Traits, typename _Alloc> |
3665 | inline bool | |
3666 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3667 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3668 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3669 | { return __lhs.compare(__rhs) > 0; } |
3670 | ||
284f19bf JQ |
3671 | /** |
3672 | * @brief Test if string follows C string. | |
93c66bc6 BK |
3673 | * @param __lhs String. |
3674 | * @param __rhs C string. | |
3675 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 3676 | */ |
725dc051 BK |
3677 | template<typename _CharT, typename _Traits, typename _Alloc> |
3678 | inline bool | |
3679 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3680 | const _CharT* __rhs) | |
3681 | { return __lhs.compare(__rhs) > 0; } | |
3682 | ||
284f19bf JQ |
3683 | /** |
3684 | * @brief Test if C string follows string. | |
93c66bc6 BK |
3685 | * @param __lhs C string. |
3686 | * @param __rhs String. | |
3687 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 3688 | */ |
725dc051 BK |
3689 | template<typename _CharT, typename _Traits, typename _Alloc> |
3690 | inline bool | |
3691 | operator>(const _CharT* __lhs, | |
3692 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3693 | { return __rhs.compare(__lhs) < 0; } | |
3694 | ||
3695 | // operator <= | |
284f19bf JQ |
3696 | /** |
3697 | * @brief Test if string doesn't follow string. | |
93c66bc6 BK |
3698 | * @param __lhs First string. |
3699 | * @param __rhs Second string. | |
3700 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 3701 | */ |
725dc051 BK |
3702 | template<typename _CharT, typename _Traits, typename _Alloc> |
3703 | inline bool | |
3704 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3705 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3706 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3707 | { return __lhs.compare(__rhs) <= 0; } |
3708 | ||
284f19bf JQ |
3709 | /** |
3710 | * @brief Test if string doesn't follow C string. | |
93c66bc6 BK |
3711 | * @param __lhs String. |
3712 | * @param __rhs C string. | |
3713 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 3714 | */ |
725dc051 BK |
3715 | template<typename _CharT, typename _Traits, typename _Alloc> |
3716 | inline bool | |
3717 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3718 | const _CharT* __rhs) | |
3719 | { return __lhs.compare(__rhs) <= 0; } | |
3720 | ||
284f19bf JQ |
3721 | /** |
3722 | * @brief Test if C string doesn't follow string. | |
93c66bc6 BK |
3723 | * @param __lhs C string. |
3724 | * @param __rhs String. | |
3725 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 3726 | */ |
725dc051 BK |
3727 | template<typename _CharT, typename _Traits, typename _Alloc> |
3728 | inline bool | |
3729 | operator<=(const _CharT* __lhs, | |
3730 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
e9fb72e8 | 3731 | { return __rhs.compare(__lhs) >= 0; } |
725dc051 BK |
3732 | |
3733 | // operator >= | |
284f19bf JQ |
3734 | /** |
3735 | * @brief Test if string doesn't precede string. | |
93c66bc6 BK |
3736 | * @param __lhs First string. |
3737 | * @param __rhs Second string. | |
3738 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 3739 | */ |
725dc051 BK |
3740 | template<typename _CharT, typename _Traits, typename _Alloc> |
3741 | inline bool | |
3742 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3743 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3744 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3745 | { return __lhs.compare(__rhs) >= 0; } |
3746 | ||
284f19bf JQ |
3747 | /** |
3748 | * @brief Test if string doesn't precede C string. | |
93c66bc6 BK |
3749 | * @param __lhs String. |
3750 | * @param __rhs C string. | |
3751 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 3752 | */ |
725dc051 BK |
3753 | template<typename _CharT, typename _Traits, typename _Alloc> |
3754 | inline bool | |
3755 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3756 | const _CharT* __rhs) | |
3757 | { return __lhs.compare(__rhs) >= 0; } | |
3758 | ||
284f19bf JQ |
3759 | /** |
3760 | * @brief Test if C string doesn't precede string. | |
93c66bc6 BK |
3761 | * @param __lhs C string. |
3762 | * @param __rhs String. | |
3763 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 3764 | */ |
725dc051 BK |
3765 | template<typename _CharT, typename _Traits, typename _Alloc> |
3766 | inline bool | |
3767 | operator>=(const _CharT* __lhs, | |
3768 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3769 | { return __rhs.compare(__lhs) <= 0; } | |
875d6cb3 | 3770 | #endif // three-way comparison |
725dc051 | 3771 | |
284f19bf JQ |
3772 | /** |
3773 | * @brief Swap contents of two strings. | |
93c66bc6 BK |
3774 | * @param __lhs First string. |
3775 | * @param __rhs Second string. | |
284f19bf | 3776 | * |
93c66bc6 | 3777 | * Exchanges the contents of @a __lhs and @a __rhs in constant time. |
284f19bf | 3778 | */ |
725dc051 | 3779 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3780 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3781 | inline void |
3782 | swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3783 | basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3784 | _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs))) |
725dc051 BK |
3785 | { __lhs.swap(__rhs); } |
3786 | ||
34a2b755 | 3787 | |
284f19bf JQ |
3788 | /** |
3789 | * @brief Read stream into a string. | |
93c66bc6 BK |
3790 | * @param __is Input stream. |
3791 | * @param __str Buffer to store into. | |
284f19bf JQ |
3792 | * @return Reference to the input stream. |
3793 | * | |
93c66bc6 BK |
3794 | * Stores characters from @a __is into @a __str until whitespace is |
3795 | * found, the end of the stream is encountered, or str.max_size() | |
3796 | * is reached. If is.width() is non-zero, that is the limit on the | |
3797 | * number of characters stored into @a __str. Any previous | |
3798 | * contents of @a __str are erased. | |
284f19bf | 3799 | */ |
725dc051 BK |
3800 | template<typename _CharT, typename _Traits, typename _Alloc> |
3801 | basic_istream<_CharT, _Traits>& | |
3802 | operator>>(basic_istream<_CharT, _Traits>& __is, | |
3803 | basic_string<_CharT, _Traits, _Alloc>& __str); | |
3804 | ||
ceed88b1 PC |
3805 | template<> |
3806 | basic_istream<char>& | |
3807 | operator>>(basic_istream<char>& __is, basic_string<char>& __str); | |
3808 | ||
284f19bf JQ |
3809 | /** |
3810 | * @brief Write string to a stream. | |
93c66bc6 BK |
3811 | * @param __os Output stream. |
3812 | * @param __str String to write out. | |
284f19bf JQ |
3813 | * @return Reference to the output stream. |
3814 | * | |
93c66bc6 | 3815 | * Output characters of @a __str into os following the same rules as for |
284f19bf JQ |
3816 | * writing a C string. |
3817 | */ | |
725dc051 | 3818 | template<typename _CharT, typename _Traits, typename _Alloc> |
70c99f6c | 3819 | inline basic_ostream<_CharT, _Traits>& |
725dc051 | 3820 | operator<<(basic_ostream<_CharT, _Traits>& __os, |
ec2061a9 PC |
3821 | const basic_string<_CharT, _Traits, _Alloc>& __str) |
3822 | { | |
3823 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3824 | // 586. string inserter not a formatted function | |
11202768 | 3825 | return __ostream_insert(__os, __str.data(), __str.size()); |
ec2061a9 | 3826 | } |
725dc051 | 3827 | |
284f19bf JQ |
3828 | /** |
3829 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
3830 | * @param __is Input stream. |
3831 | * @param __str Buffer to store into. | |
3832 | * @param __delim Character marking end of line. | |
284f19bf JQ |
3833 | * @return Reference to the input stream. |
3834 | * | |
93c66bc6 BK |
3835 | * Stores characters from @a __is into @a __str until @a __delim is |
3836 | * found, the end of the stream is encountered, or str.max_size() | |
3b2453a9 JW |
3837 | * is reached. Any previous contents of @a __str are erased. If |
3838 | * @a __delim is encountered, it is extracted but not stored into | |
3839 | * @a __str. | |
284f19bf | 3840 | */ |
725dc051 | 3841 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 3842 | basic_istream<_CharT, _Traits>& |
725dc051 BK |
3843 | getline(basic_istream<_CharT, _Traits>& __is, |
3844 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim); | |
3845 | ||
284f19bf JQ |
3846 | /** |
3847 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
3848 | * @param __is Input stream. |
3849 | * @param __str Buffer to store into. | |
284f19bf JQ |
3850 | * @return Reference to the input stream. |
3851 | * | |
93c66bc6 | 3852 | * Stores characters from is into @a __str until '\n' is |
2a60a9f6 | 3853 | * found, the end of the stream is encountered, or str.max_size() |
3b2453a9 JW |
3854 | * is reached. Any previous contents of @a __str are erased. If |
3855 | * end of line is encountered, it is extracted but not stored into | |
3856 | * @a __str. | |
284f19bf | 3857 | */ |
725dc051 | 3858 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 3859 | inline basic_istream<_CharT, _Traits>& |
725dc051 | 3860 | getline(basic_istream<_CharT, _Traits>& __is, |
70c99f6c | 3861 | basic_string<_CharT, _Traits, _Alloc>& __str) |
19173661 JW |
3862 | { return std::getline(__is, __str, __is.widen('\n')); } |
3863 | ||
3864 | #if __cplusplus >= 201103L | |
3865 | /// Read a line from an rvalue stream into a string. | |
3866 | template<typename _CharT, typename _Traits, typename _Alloc> | |
caff45a6 | 3867 | inline basic_istream<_CharT, _Traits>& |
19173661 JW |
3868 | getline(basic_istream<_CharT, _Traits>&& __is, |
3869 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim) | |
3870 | { return std::getline(__is, __str, __delim); } | |
3871 | ||
3872 | /// Read a line from an rvalue stream into a string. | |
3873 | template<typename _CharT, typename _Traits, typename _Alloc> | |
3874 | inline basic_istream<_CharT, _Traits>& | |
3875 | getline(basic_istream<_CharT, _Traits>&& __is, | |
3876 | basic_string<_CharT, _Traits, _Alloc>& __str) | |
3877 | { return std::getline(__is, __str); } | |
3878 | #endif | |
70c99f6c | 3879 | |
e9fb72e8 PC |
3880 | template<> |
3881 | basic_istream<char>& | |
3882 | getline(basic_istream<char>& __in, basic_string<char>& __str, | |
3883 | char __delim); | |
3884 | ||
3885 | #ifdef _GLIBCXX_USE_WCHAR_T | |
3886 | template<> | |
3887 | basic_istream<wchar_t>& | |
3888 | getline(basic_istream<wchar_t>& __in, basic_string<wchar_t>& __str, | |
3889 | wchar_t __delim); | |
3890 | #endif | |
3cbc7af0 | 3891 | |
12ffa228 BK |
3892 | _GLIBCXX_END_NAMESPACE_VERSION |
3893 | } // namespace | |
7364f286 | 3894 | |
23c64853 | 3895 | #if __cplusplus >= 201103L |
7364f286 | 3896 | |
a5a6b586 | 3897 | #include <ext/string_conversions.h> |
cd0b94e6 | 3898 | #include <bits/charconv.h> |
7364f286 | 3899 | |
12ffa228 BK |
3900 | namespace std _GLIBCXX_VISIBILITY(default) |
3901 | { | |
3902 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
34a2b755 | 3903 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 |
7364f286 | 3904 | |
23c64853 | 3905 | #if _GLIBCXX_USE_C99_STDLIB |
a5a6b586 PC |
3906 | // 21.4 Numeric Conversions [string.conversions]. |
3907 | inline int | |
3908 | stoi(const string& __str, size_t* __idx = 0, int __base = 10) | |
3909 | { return __gnu_cxx::__stoa<long, int>(&std::strtol, "stoi", __str.c_str(), | |
3910 | __idx, __base); } | |
3911 | ||
3912 | inline long | |
3913 | stol(const string& __str, size_t* __idx = 0, int __base = 10) | |
3914 | { return __gnu_cxx::__stoa(&std::strtol, "stol", __str.c_str(), | |
3915 | __idx, __base); } | |
3916 | ||
3917 | inline unsigned long | |
3918 | stoul(const string& __str, size_t* __idx = 0, int __base = 10) | |
3919 | { return __gnu_cxx::__stoa(&std::strtoul, "stoul", __str.c_str(), | |
3920 | __idx, __base); } | |
3921 | ||
3922 | inline long long | |
3923 | stoll(const string& __str, size_t* __idx = 0, int __base = 10) | |
3924 | { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(), | |
3925 | __idx, __base); } | |
3926 | ||
3927 | inline unsigned long long | |
3928 | stoull(const string& __str, size_t* __idx = 0, int __base = 10) | |
3929 | { return __gnu_cxx::__stoa(&std::strtoull, "stoull", __str.c_str(), | |
3930 | __idx, __base); } | |
3931 | ||
3932 | // NB: strtof vs strtod. | |
3933 | inline float | |
3934 | stof(const string& __str, size_t* __idx = 0) | |
3935 | { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); } | |
3936 | ||
3937 | inline double | |
3938 | stod(const string& __str, size_t* __idx = 0) | |
3939 | { return __gnu_cxx::__stoa(&std::strtod, "stod", __str.c_str(), __idx); } | |
3940 | ||
3941 | inline long double | |
3942 | stold(const string& __str, size_t* __idx = 0) | |
3943 | { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); } | |
23c64853 | 3944 | #endif // _GLIBCXX_USE_C99_STDLIB |
a5a6b586 | 3945 | |
cd0b94e6 | 3946 | // DR 1261. Insufficent overloads for to_string / to_wstring |
a4ecd144 | 3947 | |
a4ecd144 PC |
3948 | inline string |
3949 | to_string(int __val) | |
9d813ddd JW |
3950 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_INT__) <= 32 |
3951 | noexcept // any 32-bit value fits in the SSO buffer | |
3952 | #endif | |
cd0b94e6 JW |
3953 | { |
3954 | const bool __neg = __val < 0; | |
3955 | const unsigned __uval = __neg ? (unsigned)~__val + 1u : __val; | |
3956 | const auto __len = __detail::__to_chars_len(__uval); | |
3957 | string __str(__neg + __len, '-'); | |
3958 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
3959 | return __str; | |
3960 | } | |
a4ecd144 PC |
3961 | |
3962 | inline string | |
3963 | to_string(unsigned __val) | |
9d813ddd JW |
3964 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_INT__) <= 32 |
3965 | noexcept // any 32-bit value fits in the SSO buffer | |
3966 | #endif | |
cd0b94e6 JW |
3967 | { |
3968 | string __str(__detail::__to_chars_len(__val), '\0'); | |
3969 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
3970 | return __str; | |
3971 | } | |
a4ecd144 PC |
3972 | |
3973 | inline string | |
3974 | to_string(long __val) | |
9d813ddd JW |
3975 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_LONG__) <= 32 |
3976 | noexcept // any 32-bit value fits in the SSO buffer | |
3977 | #endif | |
cd0b94e6 JW |
3978 | { |
3979 | const bool __neg = __val < 0; | |
3980 | const unsigned long __uval = __neg ? (unsigned long)~__val + 1ul : __val; | |
3981 | const auto __len = __detail::__to_chars_len(__uval); | |
3982 | string __str(__neg + __len, '-'); | |
3983 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
3984 | return __str; | |
3985 | } | |
a4ecd144 PC |
3986 | |
3987 | inline string | |
3988 | to_string(unsigned long __val) | |
9d813ddd JW |
3989 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_LONG__) <= 32 |
3990 | noexcept // any 32-bit value fits in the SSO buffer | |
3991 | #endif | |
cd0b94e6 JW |
3992 | { |
3993 | string __str(__detail::__to_chars_len(__val), '\0'); | |
3994 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
3995 | return __str; | |
3996 | } | |
a4ecd144 | 3997 | |
a5a6b586 PC |
3998 | inline string |
3999 | to_string(long long __val) | |
cd0b94e6 JW |
4000 | { |
4001 | const bool __neg = __val < 0; | |
4002 | const unsigned long long __uval | |
4003 | = __neg ? (unsigned long long)~__val + 1ull : __val; | |
4004 | const auto __len = __detail::__to_chars_len(__uval); | |
4005 | string __str(__neg + __len, '-'); | |
4006 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
4007 | return __str; | |
4008 | } | |
a5a6b586 PC |
4009 | |
4010 | inline string | |
4011 | to_string(unsigned long long __val) | |
cd0b94e6 JW |
4012 | { |
4013 | string __str(__detail::__to_chars_len(__val), '\0'); | |
4014 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
4015 | return __str; | |
4016 | } | |
4017 | ||
4018 | #if _GLIBCXX_USE_C99_STDIO | |
4019 | // NB: (v)snprintf vs sprintf. | |
a5a6b586 | 4020 | |
a4ecd144 PC |
4021 | inline string |
4022 | to_string(float __val) | |
4023 | { | |
4024 | const int __n = | |
4025 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
4026 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
4027 | "%f", __val); | |
4028 | } | |
4029 | ||
4030 | inline string | |
4031 | to_string(double __val) | |
4032 | { | |
4033 | const int __n = | |
4034 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
4035 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
4036 | "%f", __val); | |
4037 | } | |
4038 | ||
a5a6b586 PC |
4039 | inline string |
4040 | to_string(long double __val) | |
4041 | { | |
4042 | const int __n = | |
4043 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
4044 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
4045 | "%Lf", __val); | |
4046 | } | |
23c64853 | 4047 | #endif // _GLIBCXX_USE_C99_STDIO |
7364f286 | 4048 | |
356510ac | 4049 | #if defined(_GLIBCXX_USE_WCHAR_T) && _GLIBCXX_USE_C99_WCHAR |
a5a6b586 PC |
4050 | inline int |
4051 | stoi(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4052 | { return __gnu_cxx::__stoa<long, int>(&std::wcstol, "stoi", __str.c_str(), | |
4053 | __idx, __base); } | |
4054 | ||
4055 | inline long | |
4056 | stol(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4057 | { return __gnu_cxx::__stoa(&std::wcstol, "stol", __str.c_str(), | |
4058 | __idx, __base); } | |
4059 | ||
4060 | inline unsigned long | |
4061 | stoul(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4062 | { return __gnu_cxx::__stoa(&std::wcstoul, "stoul", __str.c_str(), | |
4063 | __idx, __base); } | |
4064 | ||
4065 | inline long long | |
4066 | stoll(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4067 | { return __gnu_cxx::__stoa(&std::wcstoll, "stoll", __str.c_str(), | |
4068 | __idx, __base); } | |
4069 | ||
4070 | inline unsigned long long | |
4071 | stoull(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4072 | { return __gnu_cxx::__stoa(&std::wcstoull, "stoull", __str.c_str(), | |
4073 | __idx, __base); } | |
4074 | ||
4075 | // NB: wcstof vs wcstod. | |
4076 | inline float | |
4077 | stof(const wstring& __str, size_t* __idx = 0) | |
4078 | { return __gnu_cxx::__stoa(&std::wcstof, "stof", __str.c_str(), __idx); } | |
4079 | ||
4080 | inline double | |
4081 | stod(const wstring& __str, size_t* __idx = 0) | |
4082 | { return __gnu_cxx::__stoa(&std::wcstod, "stod", __str.c_str(), __idx); } | |
4083 | ||
4084 | inline long double | |
4085 | stold(const wstring& __str, size_t* __idx = 0) | |
4086 | { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); } | |
4087 | ||
f37f5fb8 | 4088 | #ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
a4ecd144 PC |
4089 | // DR 1261. |
4090 | inline wstring | |
4091 | to_wstring(int __val) | |
4092 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(int), | |
4093 | L"%d", __val); } | |
4094 | ||
4095 | inline wstring | |
4096 | to_wstring(unsigned __val) | |
4097 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4098 | 4 * sizeof(unsigned), | |
4099 | L"%u", __val); } | |
4100 | ||
4101 | inline wstring | |
4102 | to_wstring(long __val) | |
4103 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(long), | |
4104 | L"%ld", __val); } | |
4105 | ||
4106 | inline wstring | |
4107 | to_wstring(unsigned long __val) | |
4108 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4109 | 4 * sizeof(unsigned long), | |
4110 | L"%lu", __val); } | |
4111 | ||
a5a6b586 PC |
4112 | inline wstring |
4113 | to_wstring(long long __val) | |
4114 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4115 | 4 * sizeof(long long), | |
4116 | L"%lld", __val); } | |
4117 | ||
4118 | inline wstring | |
4119 | to_wstring(unsigned long long __val) | |
4120 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4121 | 4 * sizeof(unsigned long long), | |
4122 | L"%llu", __val); } | |
4123 | ||
a4ecd144 PC |
4124 | inline wstring |
4125 | to_wstring(float __val) | |
4126 | { | |
4127 | const int __n = | |
4128 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
4129 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
4130 | L"%f", __val); | |
4131 | } | |
4132 | ||
4133 | inline wstring | |
4134 | to_wstring(double __val) | |
4135 | { | |
4136 | const int __n = | |
4137 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
4138 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
4139 | L"%f", __val); | |
4140 | } | |
4141 | ||
a5a6b586 PC |
4142 | inline wstring |
4143 | to_wstring(long double __val) | |
4144 | { | |
4145 | const int __n = | |
4146 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
4147 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
4148 | L"%Lf", __val); | |
4149 | } | |
f37f5fb8 | 4150 | #endif // _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
23c64853 | 4151 | #endif // _GLIBCXX_USE_WCHAR_T && _GLIBCXX_USE_C99_WCHAR |
7364f286 | 4152 | |
34a2b755 | 4153 | _GLIBCXX_END_NAMESPACE_CXX11 |
12ffa228 BK |
4154 | _GLIBCXX_END_NAMESPACE_VERSION |
4155 | } // namespace | |
725dc051 | 4156 | |
23c64853 | 4157 | #endif /* C++11 */ |
15d81a3c | 4158 | |
734f5023 | 4159 | #if __cplusplus >= 201103L |
15d81a3c PC |
4160 | |
4161 | #include <bits/functional_hash.h> | |
4162 | ||
12ffa228 BK |
4163 | namespace std _GLIBCXX_VISIBILITY(default) |
4164 | { | |
4165 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
15d81a3c PC |
4166 | |
4167 | // DR 1182. | |
4168 | ||
4169 | #ifndef _GLIBCXX_COMPATIBILITY_CXX0X | |
4170 | /// std::hash specialization for string. | |
4171 | template<> | |
4172 | struct hash<string> | |
5d64ee19 | 4173 | : public __hash_base<size_t, string> |
15d81a3c PC |
4174 | { |
4175 | size_t | |
72f1c34b | 4176 | operator()(const string& __s) const noexcept |
e7f72940 | 4177 | { return std::_Hash_impl::hash(__s.data(), __s.length()); } |
15d81a3c PC |
4178 | }; |
4179 | ||
4df047dd FD |
4180 | template<> |
4181 | struct __is_fast_hash<hash<string>> : std::false_type | |
4182 | { }; | |
4183 | ||
15d81a3c PC |
4184 | /// std::hash specialization for wstring. |
4185 | template<> | |
4186 | struct hash<wstring> | |
5d64ee19 | 4187 | : public __hash_base<size_t, wstring> |
15d81a3c PC |
4188 | { |
4189 | size_t | |
72f1c34b | 4190 | operator()(const wstring& __s) const noexcept |
e7f72940 MA |
4191 | { return std::_Hash_impl::hash(__s.data(), |
4192 | __s.length() * sizeof(wchar_t)); } | |
15d81a3c | 4193 | }; |
4df047dd FD |
4194 | |
4195 | template<> | |
4196 | struct __is_fast_hash<hash<wstring>> : std::false_type | |
4197 | { }; | |
15d81a3c PC |
4198 | #endif /* _GLIBCXX_COMPATIBILITY_CXX0X */ |
4199 | ||
c124af93 TH |
4200 | #ifdef _GLIBCXX_USE_CHAR8_T |
4201 | /// std::hash specialization for u8string. | |
4202 | template<> | |
4203 | struct hash<u8string> | |
4204 | : public __hash_base<size_t, u8string> | |
4205 | { | |
4206 | size_t | |
4207 | operator()(const u8string& __s) const noexcept | |
4208 | { return std::_Hash_impl::hash(__s.data(), | |
4209 | __s.length() * sizeof(char8_t)); } | |
4210 | }; | |
4211 | ||
4212 | template<> | |
4213 | struct __is_fast_hash<hash<u8string>> : std::false_type | |
4214 | { }; | |
4215 | #endif | |
4216 | ||
15d81a3c PC |
4217 | /// std::hash specialization for u16string. |
4218 | template<> | |
4219 | struct hash<u16string> | |
5d64ee19 | 4220 | : public __hash_base<size_t, u16string> |
15d81a3c PC |
4221 | { |
4222 | size_t | |
72f1c34b | 4223 | operator()(const u16string& __s) const noexcept |
e7f72940 MA |
4224 | { return std::_Hash_impl::hash(__s.data(), |
4225 | __s.length() * sizeof(char16_t)); } | |
15d81a3c PC |
4226 | }; |
4227 | ||
4df047dd FD |
4228 | template<> |
4229 | struct __is_fast_hash<hash<u16string>> : std::false_type | |
4230 | { }; | |
4231 | ||
15d81a3c PC |
4232 | /// std::hash specialization for u32string. |
4233 | template<> | |
4234 | struct hash<u32string> | |
5d64ee19 | 4235 | : public __hash_base<size_t, u32string> |
15d81a3c PC |
4236 | { |
4237 | size_t | |
72f1c34b | 4238 | operator()(const u32string& __s) const noexcept |
e7f72940 MA |
4239 | { return std::_Hash_impl::hash(__s.data(), |
4240 | __s.length() * sizeof(char32_t)); } | |
15d81a3c | 4241 | }; |
4df047dd FD |
4242 | |
4243 | template<> | |
4244 | struct __is_fast_hash<hash<u32string>> : std::false_type | |
4245 | { }; | |
15d81a3c | 4246 | |
10f26de9 | 4247 | #if __cplusplus >= 201402L |
1c9f675f | 4248 | |
a15f7cb8 ESR |
4249 | #define __cpp_lib_string_udls 201304 |
4250 | ||
0372af98 ESR |
4251 | inline namespace literals |
4252 | { | |
4253 | inline namespace string_literals | |
4254 | { | |
f03858e5 JW |
4255 | #pragma GCC diagnostic push |
4256 | #pragma GCC diagnostic ignored "-Wliteral-suffix" | |
b96e2ff9 ML |
4257 | |
4258 | #if __cpp_lib_constexpr_string >= 201907L | |
4259 | # define _GLIBCXX_STRING_CONSTEXPR constexpr | |
4260 | #else | |
4261 | # define _GLIBCXX_STRING_CONSTEXPR | |
4262 | #endif | |
4263 | ||
4264 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR | |
88c4d6b7 | 4265 | inline basic_string<char> |
e9a64492 | 4266 | operator""s(const char* __str, size_t __len) |
88c4d6b7 | 4267 | { return basic_string<char>{__str, __len}; } |
1c9f675f | 4268 | |
b96e2ff9 | 4269 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
88c4d6b7 | 4270 | inline basic_string<wchar_t> |
e9a64492 | 4271 | operator""s(const wchar_t* __str, size_t __len) |
88c4d6b7 | 4272 | { return basic_string<wchar_t>{__str, __len}; } |
1c9f675f | 4273 | |
c124af93 | 4274 | #ifdef _GLIBCXX_USE_CHAR8_T |
b96e2ff9 | 4275 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
c124af93 TH |
4276 | inline basic_string<char8_t> |
4277 | operator""s(const char8_t* __str, size_t __len) | |
4278 | { return basic_string<char8_t>{__str, __len}; } | |
4279 | #endif | |
4280 | ||
b96e2ff9 | 4281 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
88c4d6b7 | 4282 | inline basic_string<char16_t> |
e9a64492 | 4283 | operator""s(const char16_t* __str, size_t __len) |
88c4d6b7 | 4284 | { return basic_string<char16_t>{__str, __len}; } |
1c9f675f | 4285 | |
b96e2ff9 | 4286 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
88c4d6b7 | 4287 | inline basic_string<char32_t> |
e9a64492 | 4288 | operator""s(const char32_t* __str, size_t __len) |
88c4d6b7 | 4289 | { return basic_string<char32_t>{__str, __len}; } |
1c9f675f | 4290 | |
b96e2ff9 | 4291 | #undef _GLIBCXX_STRING_CONSTEXPR |
f03858e5 | 4292 | #pragma GCC diagnostic pop |
88c4d6b7 ESR |
4293 | } // inline namespace string_literals |
4294 | } // inline namespace literals | |
4295 | ||
10f26de9 JW |
4296 | #if __cplusplus >= 201703L |
4297 | namespace __detail::__variant | |
4298 | { | |
4299 | template<typename> struct _Never_valueless_alt; // see <variant> | |
4300 | ||
4301 | // Provide the strong exception-safety guarantee when emplacing a | |
47a468bd | 4302 | // basic_string into a variant, but only if moving the string cannot throw. |
10f26de9 JW |
4303 | template<typename _Tp, typename _Traits, typename _Alloc> |
4304 | struct _Never_valueless_alt<std::basic_string<_Tp, _Traits, _Alloc>> | |
47a468bd JW |
4305 | : __and_< |
4306 | is_nothrow_move_constructible<std::basic_string<_Tp, _Traits, _Alloc>>, | |
4307 | is_nothrow_move_assignable<std::basic_string<_Tp, _Traits, _Alloc>> | |
4308 | >::type | |
10f26de9 JW |
4309 | { }; |
4310 | } // namespace __detail::__variant | |
4311 | #endif // C++17 | |
4312 | #endif // C++14 | |
1c9f675f | 4313 | |
4a15d842 | 4314 | _GLIBCXX_END_NAMESPACE_VERSION |
1c9f675f ESR |
4315 | } // namespace std |
4316 | ||
734f5023 | 4317 | #endif // C++11 |
a5a6b586 | 4318 | |
3d7c150e | 4319 | #endif /* _BASIC_STRING_H */ |