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725dc051 BK |
1 | // Components for manipulating sequences of characters -*- C++ -*- |
2 | ||
7adcbafe | 3 | // Copyright (C) 1997-2022 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 | |
74d14778 | 62 | #elif __cplusplus >= 201703L && _GLIBCXX_HAVE_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; | |
2d76292b JW |
90 | |
91 | #if __cpp_lib_constexpr_string < 201907L | |
34a2b755 | 92 | typedef __gnu_cxx::__alloc_traits<_Char_alloc_type> _Alloc_traits; |
2d76292b JW |
93 | #else |
94 | template<typename _Traits2, typename _Dummy_for_PR85282> | |
95 | struct _Alloc_traits_impl : __gnu_cxx::__alloc_traits<_Char_alloc_type> | |
96 | { | |
97 | typedef __gnu_cxx::__alloc_traits<_Char_alloc_type> _Base; | |
98 | ||
99 | [[__gnu__::__always_inline__]] | |
100 | static constexpr typename _Base::pointer | |
101 | allocate(_Char_alloc_type& __a, typename _Base::size_type __n) | |
102 | { | |
103 | pointer __p = _Base::allocate(__a, __n); | |
74d14778 | 104 | if (std::is_constant_evaluated()) |
2d76292b JW |
105 | // Begin the lifetime of characters in allocated storage. |
106 | for (size_type __i = 0; __i < __n; ++__i) | |
107 | std::construct_at(__builtin_addressof(__p[__i])); | |
108 | return __p; | |
109 | } | |
110 | }; | |
111 | ||
112 | template<typename _Dummy_for_PR85282> | |
113 | struct _Alloc_traits_impl<char_traits<_CharT>, _Dummy_for_PR85282> | |
114 | : __gnu_cxx::__alloc_traits<_Char_alloc_type> | |
115 | { | |
116 | // std::char_traits begins the lifetime of characters. | |
117 | }; | |
118 | ||
119 | using _Alloc_traits = _Alloc_traits_impl<_Traits, void>; | |
120 | #endif | |
34a2b755 JW |
121 | |
122 | // Types: | |
123 | public: | |
124 | typedef _Traits traits_type; | |
125 | typedef typename _Traits::char_type value_type; | |
126 | typedef _Char_alloc_type allocator_type; | |
127 | typedef typename _Alloc_traits::size_type size_type; | |
128 | typedef typename _Alloc_traits::difference_type difference_type; | |
129 | typedef typename _Alloc_traits::reference reference; | |
130 | typedef typename _Alloc_traits::const_reference const_reference; | |
131 | typedef typename _Alloc_traits::pointer pointer; | |
132 | typedef typename _Alloc_traits::const_pointer const_pointer; | |
133 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; | |
134 | typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> | |
135 | const_iterator; | |
136 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; | |
137 | typedef std::reverse_iterator<iterator> reverse_iterator; | |
138 | ||
139 | /// Value returned by various member functions when they fail. | |
140 | static const size_type npos = static_cast<size_type>(-1); | |
141 | ||
3eb1eda1 | 142 | protected: |
34a2b755 JW |
143 | // type used for positions in insert, erase etc. |
144 | #if __cplusplus < 201103L | |
145 | typedef iterator __const_iterator; | |
146 | #else | |
147 | typedef const_iterator __const_iterator; | |
148 | #endif | |
149 | ||
3eb1eda1 | 150 | private: |
1a289fa3 | 151 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
152 | // A helper type for avoiding boiler-plate. |
153 | typedef basic_string_view<_CharT, _Traits> __sv_type; | |
92daf2de JW |
154 | |
155 | template<typename _Tp, typename _Res> | |
156 | using _If_sv = enable_if_t< | |
157 | __and_<is_convertible<const _Tp&, __sv_type>, | |
4cf5930f | 158 | __not_<is_convertible<const _Tp*, const basic_string*>>, |
92daf2de JW |
159 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, |
160 | _Res>; | |
df66af3b DK |
161 | |
162 | // Allows an implicit conversion to __sv_type. | |
b96e2ff9 | 163 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
164 | static __sv_type |
165 | _S_to_string_view(__sv_type __svt) noexcept | |
166 | { return __svt; } | |
167 | ||
168 | // Wraps a string_view by explicit conversion and thus | |
169 | // allows to add an internal constructor that does not | |
170 | // participate in overload resolution when a string_view | |
171 | // is provided. | |
172 | struct __sv_wrapper | |
173 | { | |
b96e2ff9 ML |
174 | _GLIBCXX20_CONSTEXPR explicit |
175 | __sv_wrapper(__sv_type __sv) noexcept : _M_sv(__sv) { } | |
176 | ||
df66af3b DK |
177 | __sv_type _M_sv; |
178 | }; | |
1a289fa3 JW |
179 | |
180 | /** | |
181 | * @brief Only internally used: Construct string from a string view | |
182 | * wrapper. | |
183 | * @param __svw string view wrapper. | |
184 | * @param __a Allocator to use. | |
185 | */ | |
b96e2ff9 | 186 | _GLIBCXX20_CONSTEXPR |
1a289fa3 JW |
187 | explicit |
188 | basic_string(__sv_wrapper __svw, const _Alloc& __a) | |
189 | : basic_string(__svw._M_sv.data(), __svw._M_sv.size(), __a) { } | |
ca8f2cb1 VV |
190 | #endif |
191 | ||
34a2b755 JW |
192 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html |
193 | struct _Alloc_hider : allocator_type // TODO check __is_final | |
194 | { | |
8cab3d18 | 195 | #if __cplusplus < 201103L |
34a2b755 JW |
196 | _Alloc_hider(pointer __dat, const _Alloc& __a = _Alloc()) |
197 | : allocator_type(__a), _M_p(__dat) { } | |
8cab3d18 | 198 | #else |
b96e2ff9 | 199 | _GLIBCXX20_CONSTEXPR |
8cab3d18 JW |
200 | _Alloc_hider(pointer __dat, const _Alloc& __a) |
201 | : allocator_type(__a), _M_p(__dat) { } | |
202 | ||
b96e2ff9 | 203 | _GLIBCXX20_CONSTEXPR |
8cab3d18 JW |
204 | _Alloc_hider(pointer __dat, _Alloc&& __a = _Alloc()) |
205 | : allocator_type(std::move(__a)), _M_p(__dat) { } | |
206 | #endif | |
34a2b755 JW |
207 | |
208 | pointer _M_p; // The actual data. | |
209 | }; | |
210 | ||
211 | _Alloc_hider _M_dataplus; | |
212 | size_type _M_string_length; | |
213 | ||
59aa28e8 | 214 | enum { _S_local_capacity = 15 / sizeof(_CharT) }; |
34a2b755 JW |
215 | |
216 | union | |
217 | { | |
218 | _CharT _M_local_buf[_S_local_capacity + 1]; | |
219 | size_type _M_allocated_capacity; | |
220 | }; | |
221 | ||
b96e2ff9 | 222 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
223 | void |
224 | _M_data(pointer __p) | |
225 | { _M_dataplus._M_p = __p; } | |
226 | ||
b96e2ff9 | 227 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
228 | void |
229 | _M_length(size_type __length) | |
230 | { _M_string_length = __length; } | |
231 | ||
b96e2ff9 | 232 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
233 | pointer |
234 | _M_data() const | |
235 | { return _M_dataplus._M_p; } | |
236 | ||
b96e2ff9 | 237 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
238 | pointer |
239 | _M_local_data() | |
240 | { | |
241 | #if __cplusplus >= 201103L | |
242 | return std::pointer_traits<pointer>::pointer_to(*_M_local_buf); | |
243 | #else | |
244 | return pointer(_M_local_buf); | |
245 | #endif | |
246 | } | |
247 | ||
b96e2ff9 | 248 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
249 | const_pointer |
250 | _M_local_data() const | |
251 | { | |
252 | #if __cplusplus >= 201103L | |
253 | return std::pointer_traits<const_pointer>::pointer_to(*_M_local_buf); | |
254 | #else | |
255 | return const_pointer(_M_local_buf); | |
256 | #endif | |
257 | } | |
258 | ||
b96e2ff9 | 259 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
260 | void |
261 | _M_capacity(size_type __capacity) | |
262 | { _M_allocated_capacity = __capacity; } | |
263 | ||
b96e2ff9 | 264 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
265 | void |
266 | _M_set_length(size_type __n) | |
267 | { | |
268 | _M_length(__n); | |
269 | traits_type::assign(_M_data()[__n], _CharT()); | |
270 | } | |
271 | ||
b96e2ff9 | 272 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
273 | bool |
274 | _M_is_local() const | |
275 | { return _M_data() == _M_local_data(); } | |
276 | ||
277 | // Create & Destroy | |
b96e2ff9 | 278 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
279 | pointer |
280 | _M_create(size_type&, size_type); | |
281 | ||
b96e2ff9 | 282 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
283 | void |
284 | _M_dispose() | |
285 | { | |
286 | if (!_M_is_local()) | |
287 | _M_destroy(_M_allocated_capacity); | |
288 | } | |
289 | ||
b96e2ff9 | 290 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
291 | void |
292 | _M_destroy(size_type __size) throw() | |
293 | { _Alloc_traits::deallocate(_M_get_allocator(), _M_data(), __size + 1); } | |
294 | ||
5a9572e4 | 295 | #if __cplusplus < 201103L || defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
34a2b755 JW |
296 | // _M_construct_aux is used to implement the 21.3.1 para 15 which |
297 | // requires special behaviour if _InIterator is an integral type | |
298 | template<typename _InIterator> | |
299 | void | |
300 | _M_construct_aux(_InIterator __beg, _InIterator __end, | |
301 | std::__false_type) | |
302 | { | |
303 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; | |
304 | _M_construct(__beg, __end, _Tag()); | |
305 | } | |
306 | ||
307 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
308 | // 438. Ambiguity in the "do the right thing" clause | |
309 | template<typename _Integer> | |
310 | void | |
311 | _M_construct_aux(_Integer __beg, _Integer __end, std::__true_type) | |
312 | { _M_construct_aux_2(static_cast<size_type>(__beg), __end); } | |
313 | ||
314 | void | |
315 | _M_construct_aux_2(size_type __req, _CharT __c) | |
316 | { _M_construct(__req, __c); } | |
5a9572e4 | 317 | #endif |
34a2b755 JW |
318 | |
319 | // For Input Iterators, used in istreambuf_iterators, etc. | |
320 | template<typename _InIterator> | |
b96e2ff9 | 321 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
322 | void |
323 | _M_construct(_InIterator __beg, _InIterator __end, | |
324 | std::input_iterator_tag); | |
325 | ||
326 | // For forward_iterators up to random_access_iterators, used for | |
327 | // string::iterator, _CharT*, etc. | |
328 | template<typename _FwdIterator> | |
b96e2ff9 | 329 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
330 | void |
331 | _M_construct(_FwdIterator __beg, _FwdIterator __end, | |
332 | std::forward_iterator_tag); | |
333 | ||
b96e2ff9 | 334 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
335 | void |
336 | _M_construct(size_type __req, _CharT __c); | |
337 | ||
b96e2ff9 | 338 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
339 | allocator_type& |
340 | _M_get_allocator() | |
341 | { return _M_dataplus; } | |
342 | ||
b96e2ff9 | 343 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
344 | const allocator_type& |
345 | _M_get_allocator() const | |
346 | { return _M_dataplus; } | |
347 | ||
6afa1083 JW |
348 | // Ensure that _M_local_buf is the active member of the union. |
349 | __attribute__((__always_inline__)) | |
350 | _GLIBCXX14_CONSTEXPR | |
351 | pointer | |
352 | _M_use_local_data() _GLIBCXX_NOEXCEPT | |
353 | { | |
354 | #if __cpp_lib_is_constant_evaluated | |
74d14778 | 355 | if (std::is_constant_evaluated()) |
6afa1083 JW |
356 | _M_local_buf[0] = _CharT(); |
357 | #endif | |
358 | return _M_local_data(); | |
359 | } | |
360 | ||
34a2b755 JW |
361 | private: |
362 | ||
363 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
364 | // The explicit instantiations in misc-inst.cc require this due to | |
365 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64063 | |
366 | template<typename _Tp, bool _Requires = | |
367 | !__are_same<_Tp, _CharT*>::__value | |
368 | && !__are_same<_Tp, const _CharT*>::__value | |
369 | && !__are_same<_Tp, iterator>::__value | |
370 | && !__are_same<_Tp, const_iterator>::__value> | |
371 | struct __enable_if_not_native_iterator | |
372 | { typedef basic_string& __type; }; | |
373 | template<typename _Tp> | |
374 | struct __enable_if_not_native_iterator<_Tp, false> { }; | |
375 | #endif | |
376 | ||
b96e2ff9 | 377 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
378 | size_type |
379 | _M_check(size_type __pos, const char* __s) const | |
380 | { | |
381 | if (__pos > this->size()) | |
382 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > " | |
383 | "this->size() (which is %zu)"), | |
384 | __s, __pos, this->size()); | |
385 | return __pos; | |
386 | } | |
387 | ||
b96e2ff9 | 388 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
389 | void |
390 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const | |
391 | { | |
392 | if (this->max_size() - (this->size() - __n1) < __n2) | |
393 | __throw_length_error(__N(__s)); | |
394 | } | |
395 | ||
396 | ||
397 | // NB: _M_limit doesn't check for a bad __pos value. | |
b96e2ff9 | 398 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
399 | size_type |
400 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT | |
401 | { | |
402 | const bool __testoff = __off < this->size() - __pos; | |
403 | return __testoff ? __off : this->size() - __pos; | |
404 | } | |
405 | ||
406 | // True if _Rep and source do not overlap. | |
407 | bool | |
408 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPT | |
409 | { | |
2d60da10 JW |
410 | return (less<const _CharT*>()(__s, _M_data()) |
411 | || less<const _CharT*>()(_M_data() + this->size(), __s)); | |
34a2b755 JW |
412 | } |
413 | ||
414 | // When __n = 1 way faster than the general multichar | |
415 | // traits_type::copy/move/assign. | |
b96e2ff9 | 416 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
417 | static void |
418 | _S_copy(_CharT* __d, const _CharT* __s, size_type __n) | |
419 | { | |
420 | if (__n == 1) | |
421 | traits_type::assign(*__d, *__s); | |
422 | else | |
423 | traits_type::copy(__d, __s, __n); | |
424 | } | |
425 | ||
b96e2ff9 | 426 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
427 | static void |
428 | _S_move(_CharT* __d, const _CharT* __s, size_type __n) | |
429 | { | |
430 | if (__n == 1) | |
431 | traits_type::assign(*__d, *__s); | |
432 | else | |
433 | traits_type::move(__d, __s, __n); | |
434 | } | |
435 | ||
b96e2ff9 | 436 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
437 | static void |
438 | _S_assign(_CharT* __d, size_type __n, _CharT __c) | |
439 | { | |
440 | if (__n == 1) | |
441 | traits_type::assign(*__d, __c); | |
442 | else | |
443 | traits_type::assign(__d, __n, __c); | |
444 | } | |
445 | ||
446 | // _S_copy_chars is a separate template to permit specialization | |
447 | // to optimize for the common case of pointers as iterators. | |
448 | template<class _Iterator> | |
b96e2ff9 | 449 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
450 | static void |
451 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) | |
34a2b755 | 452 | { |
f970a17d | 453 | for (; __k1 != __k2; ++__k1, (void)++__p) |
34a2b755 JW |
454 | traits_type::assign(*__p, *__k1); // These types are off. |
455 | } | |
456 | ||
b96e2ff9 | 457 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
458 | static void |
459 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPT | |
460 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
461 | ||
b96e2ff9 | 462 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
463 | static void |
464 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) | |
465 | _GLIBCXX_NOEXCEPT | |
466 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } | |
467 | ||
b96e2ff9 | 468 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
469 | static void |
470 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPT | |
471 | { _S_copy(__p, __k1, __k2 - __k1); } | |
472 | ||
b96e2ff9 | 473 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
474 | static void |
475 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) | |
476 | _GLIBCXX_NOEXCEPT | |
477 | { _S_copy(__p, __k1, __k2 - __k1); } | |
478 | ||
b96e2ff9 | 479 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
480 | static int |
481 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPT | |
482 | { | |
483 | const difference_type __d = difference_type(__n1 - __n2); | |
484 | ||
485 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) | |
486 | return __gnu_cxx::__numeric_traits<int>::__max; | |
487 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) | |
488 | return __gnu_cxx::__numeric_traits<int>::__min; | |
489 | else | |
490 | return int(__d); | |
491 | } | |
492 | ||
b96e2ff9 | 493 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 494 | void |
a7d47f35 | 495 | _M_assign(const basic_string&); |
34a2b755 | 496 | |
b96e2ff9 | 497 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
498 | void |
499 | _M_mutate(size_type __pos, size_type __len1, const _CharT* __s, | |
500 | size_type __len2); | |
501 | ||
b96e2ff9 | 502 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
503 | void |
504 | _M_erase(size_type __pos, size_type __n); | |
505 | ||
506 | public: | |
507 | // Construct/copy/destroy: | |
508 | // NB: We overload ctors in some cases instead of using default | |
509 | // arguments, per 17.4.4.4 para. 2 item 2. | |
510 | ||
511 | /** | |
512 | * @brief Default constructor creates an empty string. | |
513 | */ | |
b96e2ff9 | 514 | _GLIBCXX20_CONSTEXPR |
bcb896ab | 515 | basic_string() |
5caff414 | 516 | _GLIBCXX_NOEXCEPT_IF(is_nothrow_default_constructible<_Alloc>::value) |
34a2b755 | 517 | : _M_dataplus(_M_local_data()) |
2d76292b JW |
518 | { |
519 | _M_use_local_data(); | |
520 | _M_set_length(0); | |
521 | } | |
34a2b755 JW |
522 | |
523 | /** | |
524 | * @brief Construct an empty string using allocator @a a. | |
525 | */ | |
b96e2ff9 | 526 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 527 | explicit |
5caff414 | 528 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPT |
34a2b755 | 529 | : _M_dataplus(_M_local_data(), __a) |
2d76292b JW |
530 | { |
531 | _M_use_local_data(); | |
532 | _M_set_length(0); | |
533 | } | |
34a2b755 JW |
534 | |
535 | /** | |
536 | * @brief Construct string with copy of value of @a __str. | |
537 | * @param __str Source string. | |
538 | */ | |
b96e2ff9 | 539 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 540 | basic_string(const basic_string& __str) |
5caff414 JW |
541 | : _M_dataplus(_M_local_data(), |
542 | _Alloc_traits::_S_select_on_copy(__str._M_get_allocator())) | |
5a9572e4 JW |
543 | { |
544 | _M_construct(__str._M_data(), __str._M_data() + __str.length(), | |
545 | std::forward_iterator_tag()); | |
546 | } | |
34a2b755 | 547 | |
86bbf15b JW |
548 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
549 | // 2583. no way to supply an allocator for basic_string(str, pos) | |
34a2b755 JW |
550 | /** |
551 | * @brief Construct string as copy of a substring. | |
552 | * @param __str Source string. | |
553 | * @param __pos Index of first character to copy from. | |
86bbf15b | 554 | * @param __a Allocator to use. |
34a2b755 | 555 | */ |
b96e2ff9 | 556 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 557 | basic_string(const basic_string& __str, size_type __pos, |
86bbf15b JW |
558 | const _Alloc& __a = _Alloc()) |
559 | : _M_dataplus(_M_local_data(), __a) | |
560 | { | |
561 | const _CharT* __start = __str._M_data() | |
562 | + __str._M_check(__pos, "basic_string::basic_string"); | |
5a9572e4 JW |
563 | _M_construct(__start, __start + __str._M_limit(__pos, npos), |
564 | std::forward_iterator_tag()); | |
86bbf15b JW |
565 | } |
566 | ||
567 | /** | |
568 | * @brief Construct string as copy of a substring. | |
569 | * @param __str Source string. | |
570 | * @param __pos Index of first character to copy from. | |
571 | * @param __n Number of characters to copy. | |
572 | */ | |
b96e2ff9 | 573 | _GLIBCXX20_CONSTEXPR |
86bbf15b JW |
574 | basic_string(const basic_string& __str, size_type __pos, |
575 | size_type __n) | |
34a2b755 JW |
576 | : _M_dataplus(_M_local_data()) |
577 | { | |
2d60da10 | 578 | const _CharT* __start = __str._M_data() |
34a2b755 | 579 | + __str._M_check(__pos, "basic_string::basic_string"); |
5a9572e4 JW |
580 | _M_construct(__start, __start + __str._M_limit(__pos, __n), |
581 | std::forward_iterator_tag()); | |
34a2b755 JW |
582 | } |
583 | ||
584 | /** | |
585 | * @brief Construct string as copy of a substring. | |
586 | * @param __str Source string. | |
587 | * @param __pos Index of first character to copy from. | |
86bbf15b | 588 | * @param __n Number of characters to copy. |
34a2b755 JW |
589 | * @param __a Allocator to use. |
590 | */ | |
b96e2ff9 | 591 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
592 | basic_string(const basic_string& __str, size_type __pos, |
593 | size_type __n, const _Alloc& __a) | |
594 | : _M_dataplus(_M_local_data(), __a) | |
595 | { | |
2d60da10 JW |
596 | const _CharT* __start |
597 | = __str._M_data() + __str._M_check(__pos, "string::string"); | |
5a9572e4 JW |
598 | _M_construct(__start, __start + __str._M_limit(__pos, __n), |
599 | std::forward_iterator_tag()); | |
34a2b755 JW |
600 | } |
601 | ||
602 | /** | |
603 | * @brief Construct string initialized by a character %array. | |
604 | * @param __s Source character %array. | |
605 | * @param __n Number of characters to copy. | |
606 | * @param __a Allocator to use (default is default allocator). | |
607 | * | |
608 | * NB: @a __s must have at least @a __n characters, '\\0' | |
609 | * has no special meaning. | |
610 | */ | |
b96e2ff9 | 611 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
612 | basic_string(const _CharT* __s, size_type __n, |
613 | const _Alloc& __a = _Alloc()) | |
614 | : _M_dataplus(_M_local_data(), __a) | |
5a9572e4 JW |
615 | { |
616 | // NB: Not required, but considered best practice. | |
617 | if (__s == 0 && __n > 0) | |
618 | std::__throw_logic_error(__N("basic_string: " | |
619 | "construction from null is not valid")); | |
620 | _M_construct(__s, __s + __n, std::forward_iterator_tag()); | |
621 | } | |
34a2b755 JW |
622 | |
623 | /** | |
624 | * @brief Construct string as copy of a C string. | |
625 | * @param __s Source C string. | |
626 | * @param __a Allocator to use (default is default allocator). | |
627 | */ | |
5d84e6c5 JW |
628 | #if __cpp_deduction_guides && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
629 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
630 | // 3076. basic_string CTAD ambiguity | |
631 | template<typename = _RequireAllocator<_Alloc>> | |
632 | #endif | |
b96e2ff9 | 633 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
634 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()) |
635 | : _M_dataplus(_M_local_data(), __a) | |
789c57bc | 636 | { |
5a9572e4 JW |
637 | // NB: Not required, but considered best practice. |
638 | if (__s == 0) | |
639 | std::__throw_logic_error(__N("basic_string: " | |
640 | "construction from null is not valid")); | |
641 | const _CharT* __end = __s + traits_type::length(__s); | |
642 | _M_construct(__s, __end, forward_iterator_tag()); | |
789c57bc | 643 | } |
34a2b755 JW |
644 | |
645 | /** | |
646 | * @brief Construct string as multiple characters. | |
647 | * @param __n Number of characters. | |
648 | * @param __c Character to use. | |
649 | * @param __a Allocator to use (default is default allocator). | |
650 | */ | |
5d84e6c5 JW |
651 | #if __cpp_deduction_guides && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
652 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
653 | // 3076. basic_string CTAD ambiguity | |
654 | template<typename = _RequireAllocator<_Alloc>> | |
655 | #endif | |
b96e2ff9 | 656 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
657 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()) |
658 | : _M_dataplus(_M_local_data(), __a) | |
659 | { _M_construct(__n, __c); } | |
660 | ||
661 | #if __cplusplus >= 201103L | |
662 | /** | |
663 | * @brief Move construct string. | |
664 | * @param __str Source string. | |
665 | * | |
666 | * The newly-created string contains the exact contents of @a __str. | |
667 | * @a __str is a valid, but unspecified string. | |
252c9967 | 668 | */ |
b96e2ff9 | 669 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
670 | basic_string(basic_string&& __str) noexcept |
671 | : _M_dataplus(_M_local_data(), std::move(__str._M_get_allocator())) | |
672 | { | |
673 | if (__str._M_is_local()) | |
674 | { | |
faa7d78e | 675 | traits_type::copy(_M_local_buf, __str._M_local_buf, |
b96e2ff9 | 676 | __str.length() + 1); |
34a2b755 JW |
677 | } |
678 | else | |
679 | { | |
680 | _M_data(__str._M_data()); | |
681 | _M_capacity(__str._M_allocated_capacity); | |
682 | } | |
683 | ||
684 | // Must use _M_length() here not _M_set_length() because | |
685 | // basic_stringbuf relies on writing into unallocated capacity so | |
686 | // we mess up the contents if we put a '\0' in the string. | |
687 | _M_length(__str.length()); | |
688 | __str._M_data(__str._M_local_data()); | |
689 | __str._M_set_length(0); | |
690 | } | |
691 | ||
692 | /** | |
693 | * @brief Construct string from an initializer %list. | |
694 | * @param __l std::initializer_list of characters. | |
695 | * @param __a Allocator to use (default is default allocator). | |
696 | */ | |
b96e2ff9 | 697 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
698 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()) |
699 | : _M_dataplus(_M_local_data(), __a) | |
5a9572e4 | 700 | { _M_construct(__l.begin(), __l.end(), std::forward_iterator_tag()); } |
34a2b755 | 701 | |
b96e2ff9 | 702 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
703 | basic_string(const basic_string& __str, const _Alloc& __a) |
704 | : _M_dataplus(_M_local_data(), __a) | |
5a9572e4 | 705 | { _M_construct(__str.begin(), __str.end(), std::forward_iterator_tag()); } |
34a2b755 | 706 | |
b96e2ff9 | 707 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 708 | basic_string(basic_string&& __str, const _Alloc& __a) |
5caff414 | 709 | noexcept(_Alloc_traits::_S_always_equal()) |
34a2b755 JW |
710 | : _M_dataplus(_M_local_data(), __a) |
711 | { | |
5caff414 JW |
712 | if (__str._M_is_local()) |
713 | { | |
714 | traits_type::copy(_M_local_buf, __str._M_local_buf, | |
b96e2ff9 | 715 | __str.length() + 1); |
5caff414 JW |
716 | _M_length(__str.length()); |
717 | __str._M_set_length(0); | |
718 | } | |
719 | else if (_Alloc_traits::_S_always_equal() | |
720 | || __str.get_allocator() == __a) | |
721 | { | |
722 | _M_data(__str._M_data()); | |
723 | _M_length(__str.length()); | |
724 | _M_capacity(__str._M_allocated_capacity); | |
725 | __str._M_data(__str._M_local_buf); | |
726 | __str._M_set_length(0); | |
727 | } | |
34a2b755 | 728 | else |
5a9572e4 | 729 | _M_construct(__str.begin(), __str.end(), std::forward_iterator_tag()); |
34a2b755 JW |
730 | } |
731 | ||
cf876562 JW |
732 | basic_string(nullptr_t) = delete; |
733 | basic_string& operator=(nullptr_t) = delete; | |
34a2b755 JW |
734 | #endif // C++11 |
735 | ||
736 | /** | |
737 | * @brief Construct string as copy of a range. | |
738 | * @param __beg Start of range. | |
739 | * @param __end End of range. | |
740 | * @param __a Allocator to use (default is default allocator). | |
741 | */ | |
742 | #if __cplusplus >= 201103L | |
743 | template<typename _InputIterator, | |
744 | typename = std::_RequireInputIter<_InputIterator>> | |
745 | #else | |
746 | template<typename _InputIterator> | |
747 | #endif | |
b96e2ff9 | 748 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
749 | basic_string(_InputIterator __beg, _InputIterator __end, |
750 | const _Alloc& __a = _Alloc()) | |
751 | : _M_dataplus(_M_local_data(), __a) | |
5a9572e4 JW |
752 | { |
753 | #if __cplusplus >= 201103L | |
754 | _M_construct(__beg, __end, std::__iterator_category(__beg)); | |
755 | #else | |
756 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; | |
757 | _M_construct_aux(__beg, __end, _Integral()); | |
758 | #endif | |
759 | } | |
34a2b755 | 760 | |
1a289fa3 | 761 | #if __cplusplus >= 201703L |
bf56b0b8 JW |
762 | /** |
763 | * @brief Construct string from a substring of a string_view. | |
df66af3b | 764 | * @param __t Source object convertible to string view. |
bf56b0b8 JW |
765 | * @param __pos The index of the first character to copy from __t. |
766 | * @param __n The number of characters to copy from __t. | |
767 | * @param __a Allocator to use. | |
768 | */ | |
3663671a | 769 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
b96e2ff9 | 770 | _GLIBCXX20_CONSTEXPR |
bf56b0b8 JW |
771 | basic_string(const _Tp& __t, size_type __pos, size_type __n, |
772 | const _Alloc& __a = _Alloc()) | |
df66af3b | 773 | : basic_string(_S_to_string_view(__t).substr(__pos, __n), __a) { } |
bf56b0b8 | 774 | |
ca8f2cb1 VV |
775 | /** |
776 | * @brief Construct string from a string_view. | |
df66af3b | 777 | * @param __t Source object convertible to string view. |
ca8f2cb1 VV |
778 | * @param __a Allocator to use (default is default allocator). |
779 | */ | |
df66af3b | 780 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
b96e2ff9 | 781 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
782 | explicit |
783 | basic_string(const _Tp& __t, const _Alloc& __a = _Alloc()) | |
784 | : basic_string(__sv_wrapper(_S_to_string_view(__t)), __a) { } | |
ca8f2cb1 VV |
785 | #endif // C++17 |
786 | ||
34a2b755 JW |
787 | /** |
788 | * @brief Destroy the string instance. | |
789 | */ | |
b96e2ff9 | 790 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
791 | ~basic_string() |
792 | { _M_dispose(); } | |
793 | ||
794 | /** | |
795 | * @brief Assign the value of @a str to this string. | |
796 | * @param __str Source string. | |
797 | */ | |
b96e2ff9 | 798 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
799 | basic_string& |
800 | operator=(const basic_string& __str) | |
5caff414 | 801 | { |
11d10beb | 802 | return this->assign(__str); |
5caff414 | 803 | } |
34a2b755 JW |
804 | |
805 | /** | |
806 | * @brief Copy contents of @a s into this string. | |
807 | * @param __s Source null-terminated string. | |
808 | */ | |
b96e2ff9 | 809 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
810 | basic_string& |
811 | operator=(const _CharT* __s) | |
812 | { return this->assign(__s); } | |
813 | ||
814 | /** | |
815 | * @brief Set value to string of length 1. | |
816 | * @param __c Source character. | |
817 | * | |
818 | * Assigning to a character makes this string length 1 and | |
819 | * (*this)[0] == @a c. | |
820 | */ | |
b96e2ff9 | 821 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
822 | basic_string& |
823 | operator=(_CharT __c) | |
824 | { | |
825 | this->assign(1, __c); | |
826 | return *this; | |
827 | } | |
828 | ||
829 | #if __cplusplus >= 201103L | |
830 | /** | |
831 | * @brief Move assign the value of @a str to this string. | |
832 | * @param __str Source string. | |
833 | * | |
834 | * The contents of @a str are moved into this string (without copying). | |
835 | * @a str is a valid, but unspecified string. | |
252c9967 | 836 | */ |
34a2b755 JW |
837 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
838 | // 2063. Contradictory requirements for string move assignment | |
b96e2ff9 | 839 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
840 | basic_string& |
841 | operator=(basic_string&& __str) | |
5caff414 | 842 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 | 843 | { |
5caff414 JW |
844 | if (!_M_is_local() && _Alloc_traits::_S_propagate_on_move_assign() |
845 | && !_Alloc_traits::_S_always_equal() | |
846 | && _M_get_allocator() != __str._M_get_allocator()) | |
847 | { | |
848 | // Destroy existing storage before replacing allocator. | |
849 | _M_destroy(_M_allocated_capacity); | |
850 | _M_data(_M_local_data()); | |
851 | _M_set_length(0); | |
852 | } | |
853 | // Replace allocator if POCMA is true. | |
854 | std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator()); | |
855 | ||
71e09389 JW |
856 | if (__str._M_is_local()) |
857 | { | |
c2fb0a1a JW |
858 | // We've always got room for a short string, just copy it |
859 | // (unless this is a self-move, because that would violate the | |
860 | // char_traits::copy precondition that the ranges don't overlap). | |
861 | if (__builtin_expect(std::__addressof(__str) != this, true)) | |
862 | { | |
863 | if (__str.size()) | |
864 | this->_S_copy(_M_data(), __str._M_data(), __str.size()); | |
865 | _M_set_length(__str.size()); | |
866 | } | |
71e09389 JW |
867 | } |
868 | else if (_Alloc_traits::_S_propagate_on_move_assign() | |
869 | || _Alloc_traits::_S_always_equal() | |
870 | || _M_get_allocator() == __str._M_get_allocator()) | |
5caff414 | 871 | { |
71e09389 | 872 | // Just move the allocated pointer, our allocator can free it. |
5caff414 JW |
873 | pointer __data = nullptr; |
874 | size_type __capacity; | |
875 | if (!_M_is_local()) | |
876 | { | |
877 | if (_Alloc_traits::_S_always_equal()) | |
878 | { | |
71e09389 | 879 | // __str can reuse our existing storage. |
5caff414 JW |
880 | __data = _M_data(); |
881 | __capacity = _M_allocated_capacity; | |
882 | } | |
71e09389 | 883 | else // __str can't use it, so free it. |
5caff414 JW |
884 | _M_destroy(_M_allocated_capacity); |
885 | } | |
886 | ||
887 | _M_data(__str._M_data()); | |
888 | _M_length(__str.length()); | |
889 | _M_capacity(__str._M_allocated_capacity); | |
890 | if (__data) | |
891 | { | |
892 | __str._M_data(__data); | |
893 | __str._M_capacity(__capacity); | |
894 | } | |
895 | else | |
896 | __str._M_data(__str._M_local_buf); | |
897 | } | |
71e09389 JW |
898 | else // Need to do a deep copy |
899 | assign(__str); | |
5caff414 | 900 | __str.clear(); |
34a2b755 JW |
901 | return *this; |
902 | } | |
903 | ||
904 | /** | |
905 | * @brief Set value to string constructed from initializer %list. | |
906 | * @param __l std::initializer_list. | |
907 | */ | |
b96e2ff9 | 908 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
909 | basic_string& |
910 | operator=(initializer_list<_CharT> __l) | |
911 | { | |
912 | this->assign(__l.begin(), __l.size()); | |
913 | return *this; | |
914 | } | |
915 | #endif // C++11 | |
916 | ||
1a289fa3 | 917 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
918 | /** |
919 | * @brief Set value to string constructed from a string_view. | |
df66af3b | 920 | * @param __svt An object convertible to string_view. |
ca8f2cb1 | 921 | */ |
df66af3b | 922 | template<typename _Tp> |
b96e2ff9 | 923 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
924 | _If_sv<_Tp, basic_string&> |
925 | operator=(const _Tp& __svt) | |
926 | { return this->assign(__svt); } | |
ca8f2cb1 VV |
927 | |
928 | /** | |
929 | * @brief Convert to a string_view. | |
930 | * @return A string_view. | |
931 | */ | |
b96e2ff9 | 932 | _GLIBCXX20_CONSTEXPR |
ca8f2cb1 | 933 | operator __sv_type() const noexcept |
df66af3b | 934 | { return __sv_type(data(), size()); } |
ca8f2cb1 VV |
935 | #endif // C++17 |
936 | ||
34a2b755 JW |
937 | // Iterators: |
938 | /** | |
939 | * Returns a read/write iterator that points to the first character in | |
940 | * the %string. | |
941 | */ | |
b96e2ff9 | 942 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
943 | iterator |
944 | begin() _GLIBCXX_NOEXCEPT | |
945 | { return iterator(_M_data()); } | |
946 | ||
947 | /** | |
948 | * Returns a read-only (constant) iterator that points to the first | |
949 | * character in the %string. | |
950 | */ | |
b96e2ff9 | 951 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
952 | const_iterator |
953 | begin() const _GLIBCXX_NOEXCEPT | |
954 | { return const_iterator(_M_data()); } | |
955 | ||
956 | /** | |
957 | * Returns a read/write iterator that points one past the last | |
958 | * character in the %string. | |
959 | */ | |
b96e2ff9 | 960 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
961 | iterator |
962 | end() _GLIBCXX_NOEXCEPT | |
963 | { return iterator(_M_data() + this->size()); } | |
964 | ||
965 | /** | |
966 | * Returns a read-only (constant) iterator that points one past the | |
967 | * last character in the %string. | |
968 | */ | |
b96e2ff9 | 969 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
970 | const_iterator |
971 | end() const _GLIBCXX_NOEXCEPT | |
972 | { return const_iterator(_M_data() + this->size()); } | |
973 | ||
974 | /** | |
975 | * Returns a read/write reverse iterator that points to the last | |
976 | * character in the %string. Iteration is done in reverse element | |
977 | * order. | |
978 | */ | |
b96e2ff9 | 979 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
980 | reverse_iterator |
981 | rbegin() _GLIBCXX_NOEXCEPT | |
982 | { return reverse_iterator(this->end()); } | |
983 | ||
984 | /** | |
985 | * Returns a read-only (constant) reverse iterator that points | |
986 | * to the last character in the %string. Iteration is done in | |
987 | * reverse element order. | |
988 | */ | |
b96e2ff9 | 989 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
990 | const_reverse_iterator |
991 | rbegin() const _GLIBCXX_NOEXCEPT | |
992 | { return const_reverse_iterator(this->end()); } | |
993 | ||
994 | /** | |
995 | * Returns a read/write reverse iterator that points to one before the | |
996 | * first character in the %string. Iteration is done in reverse | |
997 | * element order. | |
998 | */ | |
b96e2ff9 | 999 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1000 | reverse_iterator |
1001 | rend() _GLIBCXX_NOEXCEPT | |
1002 | { return reverse_iterator(this->begin()); } | |
1003 | ||
1004 | /** | |
1005 | * Returns a read-only (constant) reverse iterator that points | |
1006 | * to one before the first character in the %string. Iteration | |
1007 | * is done in reverse element order. | |
1008 | */ | |
b96e2ff9 | 1009 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1010 | const_reverse_iterator |
1011 | rend() const _GLIBCXX_NOEXCEPT | |
1012 | { return const_reverse_iterator(this->begin()); } | |
1013 | ||
1014 | #if __cplusplus >= 201103L | |
1015 | /** | |
1016 | * Returns a read-only (constant) iterator that points to the first | |
1017 | * character in the %string. | |
1018 | */ | |
b96e2ff9 | 1019 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1020 | const_iterator |
1021 | cbegin() const noexcept | |
1022 | { return const_iterator(this->_M_data()); } | |
1023 | ||
1024 | /** | |
1025 | * Returns a read-only (constant) iterator that points one past the | |
1026 | * last character in the %string. | |
1027 | */ | |
b96e2ff9 | 1028 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1029 | const_iterator |
1030 | cend() const noexcept | |
1031 | { return const_iterator(this->_M_data() + this->size()); } | |
1032 | ||
1033 | /** | |
1034 | * Returns a read-only (constant) reverse iterator that points | |
1035 | * to the last character in the %string. Iteration is done in | |
1036 | * reverse element order. | |
1037 | */ | |
b96e2ff9 | 1038 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1039 | const_reverse_iterator |
1040 | crbegin() const noexcept | |
1041 | { return const_reverse_iterator(this->end()); } | |
1042 | ||
1043 | /** | |
1044 | * Returns a read-only (constant) reverse iterator that points | |
1045 | * to one before the first character in the %string. Iteration | |
1046 | * is done in reverse element order. | |
1047 | */ | |
b96e2ff9 | 1048 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1049 | const_reverse_iterator |
1050 | crend() const noexcept | |
1051 | { return const_reverse_iterator(this->begin()); } | |
1052 | #endif | |
1053 | ||
1054 | public: | |
1055 | // Capacity: | |
1056 | /// Returns the number of characters in the string, not including any | |
1057 | /// null-termination. | |
b96e2ff9 | 1058 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1059 | size_type |
1060 | size() const _GLIBCXX_NOEXCEPT | |
1061 | { return _M_string_length; } | |
1062 | ||
1063 | /// Returns the number of characters in the string, not including any | |
1064 | /// null-termination. | |
b96e2ff9 | 1065 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1066 | size_type |
1067 | length() const _GLIBCXX_NOEXCEPT | |
1068 | { return _M_string_length; } | |
1069 | ||
1070 | /// Returns the size() of the largest possible %string. | |
b96e2ff9 | 1071 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1072 | size_type |
1073 | max_size() const _GLIBCXX_NOEXCEPT | |
1074 | { return (_Alloc_traits::max_size(_M_get_allocator()) - 1) / 2; } | |
1075 | ||
1076 | /** | |
1077 | * @brief Resizes the %string to the specified number of characters. | |
1078 | * @param __n Number of characters the %string should contain. | |
1079 | * @param __c Character to fill any new elements. | |
1080 | * | |
1081 | * This function will %resize the %string to the specified | |
1082 | * number of characters. If the number is smaller than the | |
1083 | * %string's current size the %string is truncated, otherwise | |
1084 | * the %string is extended and new elements are %set to @a __c. | |
1085 | */ | |
b96e2ff9 | 1086 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1087 | void |
1088 | resize(size_type __n, _CharT __c); | |
1089 | ||
1090 | /** | |
1091 | * @brief Resizes the %string to the specified number of characters. | |
1092 | * @param __n Number of characters the %string should contain. | |
1093 | * | |
1094 | * This function will resize the %string to the specified length. If | |
1095 | * the new size is smaller than the %string's current size the %string | |
1096 | * is truncated, otherwise the %string is extended and new characters | |
1097 | * are default-constructed. For basic types such as char, this means | |
1098 | * setting them to 0. | |
1099 | */ | |
b96e2ff9 | 1100 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1101 | void |
1102 | resize(size_type __n) | |
1103 | { this->resize(__n, _CharT()); } | |
1104 | ||
1105 | #if __cplusplus >= 201103L | |
140cf935 AL |
1106 | #pragma GCC diagnostic push |
1107 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" | |
34a2b755 | 1108 | /// A non-binding request to reduce capacity() to size(). |
b96e2ff9 | 1109 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1110 | void |
1111 | shrink_to_fit() noexcept | |
140cf935 AL |
1112 | { reserve(); } |
1113 | #pragma GCC diagnostic pop | |
34a2b755 JW |
1114 | #endif |
1115 | ||
929abc7f JW |
1116 | #if __cplusplus > 202002L |
1117 | #define __cpp_lib_string_resize_and_overwrite 202110L | |
1118 | template<typename _Operation> | |
1119 | constexpr void | |
1120 | resize_and_overwrite(size_type __n, _Operation __op); | |
1121 | #endif | |
1122 | ||
34a2b755 JW |
1123 | /** |
1124 | * Returns the total number of characters that the %string can hold | |
1125 | * before needing to allocate more memory. | |
1126 | */ | |
b96e2ff9 | 1127 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1128 | size_type |
1129 | capacity() const _GLIBCXX_NOEXCEPT | |
1130 | { | |
1131 | return _M_is_local() ? size_type(_S_local_capacity) | |
1132 | : _M_allocated_capacity; | |
1133 | } | |
1134 | ||
1135 | /** | |
1136 | * @brief Attempt to preallocate enough memory for specified number of | |
1137 | * characters. | |
1138 | * @param __res_arg Number of characters required. | |
1139 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). | |
1140 | * | |
1141 | * This function attempts to reserve enough memory for the | |
1142 | * %string to hold the specified number of characters. If the | |
1143 | * number requested is more than max_size(), length_error is | |
1144 | * thrown. | |
1145 | * | |
1146 | * The advantage of this function is that if optimal code is a | |
1147 | * necessity and the user can determine the string length that will be | |
1148 | * required, the user can reserve the memory in %advance, and thus | |
1149 | * prevent a possible reallocation of memory and copying of %string | |
1150 | * data. | |
1151 | */ | |
b96e2ff9 | 1152 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 1153 | void |
140cf935 AL |
1154 | reserve(size_type __res_arg); |
1155 | ||
1156 | /** | |
1157 | * Equivalent to shrink_to_fit(). | |
1158 | */ | |
1159 | #if __cplusplus > 201703L | |
1160 | [[deprecated("use shrink_to_fit() instead")]] | |
1161 | #endif | |
b96e2ff9 | 1162 | _GLIBCXX20_CONSTEXPR |
140cf935 AL |
1163 | void |
1164 | reserve(); | |
34a2b755 JW |
1165 | |
1166 | /** | |
1167 | * Erases the string, making it empty. | |
1168 | */ | |
b96e2ff9 | 1169 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1170 | void |
1171 | clear() _GLIBCXX_NOEXCEPT | |
1172 | { _M_set_length(0); } | |
1173 | ||
1174 | /** | |
1175 | * Returns true if the %string is empty. Equivalent to | |
1176 | * <code>*this == ""</code>. | |
1177 | */ | |
b96e2ff9 ML |
1178 | _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR |
1179 | bool | |
34a2b755 JW |
1180 | empty() const _GLIBCXX_NOEXCEPT |
1181 | { return this->size() == 0; } | |
1182 | ||
1183 | // Element access: | |
1184 | /** | |
1185 | * @brief Subscript access to the data contained in the %string. | |
1186 | * @param __pos The index of the character to access. | |
1187 | * @return Read-only (constant) reference to the character. | |
1188 | * | |
1189 | * This operator allows for easy, array-style, data access. | |
1190 | * Note that data access with this operator is unchecked and | |
1191 | * out_of_range lookups are not defined. (For checked lookups | |
1192 | * see at().) | |
1193 | */ | |
b96e2ff9 | 1194 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1195 | const_reference |
1196 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPT | |
1197 | { | |
2f1e8e7c | 1198 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1199 | return _M_data()[__pos]; |
1200 | } | |
1201 | ||
1202 | /** | |
1203 | * @brief Subscript access to the data contained in the %string. | |
1204 | * @param __pos The index of the character to access. | |
1205 | * @return Read/write reference to the character. | |
1206 | * | |
1207 | * This operator allows for easy, array-style, data access. | |
1208 | * Note that data access with this operator is unchecked and | |
1209 | * out_of_range lookups are not defined. (For checked lookups | |
1210 | * see at().) | |
1211 | */ | |
b96e2ff9 | 1212 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1213 | reference |
1214 | operator[](size_type __pos) | |
1215 | { | |
1216 | // Allow pos == size() both in C++98 mode, as v3 extension, | |
1217 | // and in C++11 mode. | |
2f1e8e7c | 1218 | __glibcxx_assert(__pos <= size()); |
34a2b755 JW |
1219 | // In pedantic mode be strict in C++98 mode. |
1220 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); | |
1221 | return _M_data()[__pos]; | |
1222 | } | |
1223 | ||
1224 | /** | |
1225 | * @brief Provides access to the data contained in the %string. | |
1226 | * @param __n The index of the character to access. | |
1227 | * @return Read-only (const) reference to the character. | |
1228 | * @throw std::out_of_range If @a n is an invalid index. | |
1229 | * | |
1230 | * This function provides for safer data access. The parameter is | |
1231 | * first checked that it is in the range of the string. The function | |
1232 | * throws out_of_range if the check fails. | |
1233 | */ | |
b96e2ff9 | 1234 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1235 | const_reference |
1236 | at(size_type __n) const | |
1237 | { | |
1238 | if (__n >= this->size()) | |
1239 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1240 | "(which is %zu) >= this->size() " | |
1241 | "(which is %zu)"), | |
1242 | __n, this->size()); | |
1243 | return _M_data()[__n]; | |
1244 | } | |
1245 | ||
1246 | /** | |
1247 | * @brief Provides access to the data contained in the %string. | |
1248 | * @param __n The index of the character to access. | |
1249 | * @return Read/write reference to the character. | |
1250 | * @throw std::out_of_range If @a n is an invalid index. | |
1251 | * | |
1252 | * This function provides for safer data access. The parameter is | |
1253 | * first checked that it is in the range of the string. The function | |
1254 | * throws out_of_range if the check fails. | |
1255 | */ | |
b96e2ff9 | 1256 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1257 | reference |
1258 | at(size_type __n) | |
1259 | { | |
1260 | if (__n >= size()) | |
1261 | __throw_out_of_range_fmt(__N("basic_string::at: __n " | |
1262 | "(which is %zu) >= this->size() " | |
1263 | "(which is %zu)"), | |
1264 | __n, this->size()); | |
1265 | return _M_data()[__n]; | |
1266 | } | |
1267 | ||
1268 | #if __cplusplus >= 201103L | |
1269 | /** | |
1270 | * Returns a read/write reference to the data at the first | |
1271 | * element of the %string. | |
1272 | */ | |
b96e2ff9 | 1273 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1274 | reference |
1275 | front() noexcept | |
e25d2617 | 1276 | { |
2f1e8e7c | 1277 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1278 | return operator[](0); |
1279 | } | |
34a2b755 JW |
1280 | |
1281 | /** | |
1282 | * Returns a read-only (constant) reference to the data at the first | |
1283 | * element of the %string. | |
1284 | */ | |
b96e2ff9 | 1285 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1286 | const_reference |
1287 | front() const noexcept | |
e25d2617 | 1288 | { |
2f1e8e7c | 1289 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1290 | return operator[](0); |
1291 | } | |
34a2b755 JW |
1292 | |
1293 | /** | |
1294 | * Returns a read/write reference to the data at the last | |
1295 | * element of the %string. | |
1296 | */ | |
b96e2ff9 | 1297 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1298 | reference |
1299 | back() noexcept | |
e25d2617 | 1300 | { |
2f1e8e7c | 1301 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1302 | return operator[](this->size() - 1); |
1303 | } | |
34a2b755 JW |
1304 | |
1305 | /** | |
1306 | * Returns a read-only (constant) reference to the data at the | |
1307 | * last element of the %string. | |
1308 | */ | |
b96e2ff9 | 1309 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1310 | const_reference |
1311 | back() const noexcept | |
e25d2617 | 1312 | { |
2f1e8e7c | 1313 | __glibcxx_assert(!empty()); |
e25d2617 FD |
1314 | return operator[](this->size() - 1); |
1315 | } | |
34a2b755 JW |
1316 | #endif |
1317 | ||
1318 | // Modifiers: | |
1319 | /** | |
1320 | * @brief Append a string to this string. | |
1321 | * @param __str The string to append. | |
1322 | * @return Reference to this string. | |
1323 | */ | |
b96e2ff9 | 1324 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1325 | basic_string& |
1326 | operator+=(const basic_string& __str) | |
1327 | { return this->append(__str); } | |
1328 | ||
1329 | /** | |
1330 | * @brief Append a C string. | |
1331 | * @param __s The C string to append. | |
1332 | * @return Reference to this string. | |
1333 | */ | |
b96e2ff9 | 1334 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1335 | basic_string& |
1336 | operator+=(const _CharT* __s) | |
1337 | { return this->append(__s); } | |
1338 | ||
1339 | /** | |
1340 | * @brief Append a character. | |
1341 | * @param __c The character to append. | |
1342 | * @return Reference to this string. | |
1343 | */ | |
b96e2ff9 | 1344 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1345 | basic_string& |
1346 | operator+=(_CharT __c) | |
1347 | { | |
1348 | this->push_back(__c); | |
1349 | return *this; | |
1350 | } | |
1351 | ||
1352 | #if __cplusplus >= 201103L | |
1353 | /** | |
1354 | * @brief Append an initializer_list of characters. | |
1355 | * @param __l The initializer_list of characters to be appended. | |
1356 | * @return Reference to this string. | |
1357 | */ | |
b96e2ff9 | 1358 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1359 | basic_string& |
1360 | operator+=(initializer_list<_CharT> __l) | |
1361 | { return this->append(__l.begin(), __l.size()); } | |
1362 | #endif // C++11 | |
1363 | ||
1a289fa3 | 1364 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1365 | /** |
1366 | * @brief Append a string_view. | |
df66af3b | 1367 | * @param __svt An object convertible to string_view to be appended. |
ca8f2cb1 VV |
1368 | * @return Reference to this string. |
1369 | */ | |
df66af3b | 1370 | template<typename _Tp> |
b96e2ff9 | 1371 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1372 | _If_sv<_Tp, basic_string&> |
1373 | operator+=(const _Tp& __svt) | |
1374 | { return this->append(__svt); } | |
ca8f2cb1 VV |
1375 | #endif // C++17 |
1376 | ||
34a2b755 JW |
1377 | /** |
1378 | * @brief Append a string to this string. | |
1379 | * @param __str The string to append. | |
1380 | * @return Reference to this string. | |
1381 | */ | |
b96e2ff9 | 1382 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1383 | basic_string& |
1384 | append(const basic_string& __str) | |
2e806704 | 1385 | { return this->append(__str._M_data(), __str.size()); } |
34a2b755 JW |
1386 | |
1387 | /** | |
1388 | * @brief Append a substring. | |
1389 | * @param __str The string to append. | |
1390 | * @param __pos Index of the first character of str to append. | |
1391 | * @param __n The number of characters to append. | |
1392 | * @return Reference to this string. | |
1393 | * @throw std::out_of_range if @a __pos is not a valid index. | |
1394 | * | |
1395 | * This function appends @a __n characters from @a __str | |
1396 | * starting at @a __pos to this string. If @a __n is is larger | |
1397 | * than the number of available characters in @a __str, the | |
1398 | * remainder of @a __str is appended. | |
1399 | */ | |
b96e2ff9 | 1400 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 1401 | basic_string& |
852ee53c | 1402 | append(const basic_string& __str, size_type __pos, size_type __n = npos) |
2e806704 JM |
1403 | { return this->append(__str._M_data() |
1404 | + __str._M_check(__pos, "basic_string::append"), | |
1405 | __str._M_limit(__pos, __n)); } | |
34a2b755 JW |
1406 | |
1407 | /** | |
1408 | * @brief Append a C substring. | |
1409 | * @param __s The C string to append. | |
1410 | * @param __n The number of characters to append. | |
1411 | * @return Reference to this string. | |
1412 | */ | |
b96e2ff9 | 1413 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1414 | basic_string& |
1415 | append(const _CharT* __s, size_type __n) | |
1416 | { | |
1417 | __glibcxx_requires_string_len(__s, __n); | |
1418 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1419 | return _M_append(__s, __n); | |
1420 | } | |
1421 | ||
1422 | /** | |
1423 | * @brief Append a C string. | |
1424 | * @param __s The C string to append. | |
1425 | * @return Reference to this string. | |
1426 | */ | |
b96e2ff9 | 1427 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1428 | basic_string& |
1429 | append(const _CharT* __s) | |
1430 | { | |
1431 | __glibcxx_requires_string(__s); | |
1432 | const size_type __n = traits_type::length(__s); | |
1433 | _M_check_length(size_type(0), __n, "basic_string::append"); | |
1434 | return _M_append(__s, __n); | |
1435 | } | |
1436 | ||
1437 | /** | |
1438 | * @brief Append multiple characters. | |
1439 | * @param __n The number of characters to append. | |
1440 | * @param __c The character to use. | |
1441 | * @return Reference to this string. | |
1442 | * | |
1443 | * Appends __n copies of __c to this string. | |
1444 | */ | |
b96e2ff9 | 1445 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1446 | basic_string& |
1447 | append(size_type __n, _CharT __c) | |
1448 | { return _M_replace_aux(this->size(), size_type(0), __n, __c); } | |
1449 | ||
1450 | #if __cplusplus >= 201103L | |
1451 | /** | |
1452 | * @brief Append an initializer_list of characters. | |
1453 | * @param __l The initializer_list of characters to append. | |
1454 | * @return Reference to this string. | |
1455 | */ | |
b96e2ff9 | 1456 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1457 | basic_string& |
1458 | append(initializer_list<_CharT> __l) | |
1459 | { return this->append(__l.begin(), __l.size()); } | |
1460 | #endif // C++11 | |
1461 | ||
1462 | /** | |
1463 | * @brief Append a range of characters. | |
1464 | * @param __first Iterator referencing the first character to append. | |
1465 | * @param __last Iterator marking the end of the range. | |
1466 | * @return Reference to this string. | |
1467 | * | |
1468 | * Appends characters in the range [__first,__last) to this string. | |
1469 | */ | |
1470 | #if __cplusplus >= 201103L | |
1471 | template<class _InputIterator, | |
1472 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 1473 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1474 | #else |
1475 | template<class _InputIterator> | |
1476 | #endif | |
1477 | basic_string& | |
1478 | append(_InputIterator __first, _InputIterator __last) | |
1479 | { return this->replace(end(), end(), __first, __last); } | |
1480 | ||
1a289fa3 | 1481 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1482 | /** |
1483 | * @brief Append a string_view. | |
df66af3b | 1484 | * @param __svt An object convertible to string_view to be appended. |
ca8f2cb1 VV |
1485 | * @return Reference to this string. |
1486 | */ | |
df66af3b | 1487 | template<typename _Tp> |
b96e2ff9 | 1488 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1489 | _If_sv<_Tp, basic_string&> |
1490 | append(const _Tp& __svt) | |
1491 | { | |
1492 | __sv_type __sv = __svt; | |
1493 | return this->append(__sv.data(), __sv.size()); | |
1494 | } | |
ca8f2cb1 VV |
1495 | |
1496 | /** | |
1497 | * @brief Append a range of characters from a string_view. | |
df66af3b | 1498 | * @param __svt An object convertible to string_view to be appended from. |
ca8f2cb1 VV |
1499 | * @param __pos The position in the string_view to append from. |
1500 | * @param __n The number of characters to append from the string_view. | |
1501 | * @return Reference to this string. | |
1502 | */ | |
df66af3b | 1503 | template<typename _Tp> |
b96e2ff9 | 1504 | _GLIBCXX20_CONSTEXPR |
df66af3b | 1505 | _If_sv<_Tp, basic_string&> |
657213f7 JW |
1506 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) |
1507 | { | |
1508 | __sv_type __sv = __svt; | |
1509 | return _M_append(__sv.data() | |
fb8b3e29 JW |
1510 | + std::__sv_check(__sv.size(), __pos, "basic_string::append"), |
1511 | std::__sv_limit(__sv.size(), __pos, __n)); | |
657213f7 | 1512 | } |
ca8f2cb1 VV |
1513 | #endif // C++17 |
1514 | ||
34a2b755 JW |
1515 | /** |
1516 | * @brief Append a single character. | |
1517 | * @param __c Character to append. | |
1518 | */ | |
b96e2ff9 | 1519 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1520 | void |
1521 | push_back(_CharT __c) | |
1522 | { | |
1523 | const size_type __size = this->size(); | |
1524 | if (__size + 1 > this->capacity()) | |
1525 | this->_M_mutate(__size, size_type(0), 0, size_type(1)); | |
1526 | traits_type::assign(this->_M_data()[__size], __c); | |
1527 | this->_M_set_length(__size + 1); | |
1528 | } | |
1529 | ||
1530 | /** | |
1531 | * @brief Set value to contents of another string. | |
1532 | * @param __str Source string to use. | |
1533 | * @return Reference to this string. | |
1534 | */ | |
b96e2ff9 | 1535 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1536 | basic_string& |
1537 | assign(const basic_string& __str) | |
1538 | { | |
db33efde NDR |
1539 | #if __cplusplus >= 201103L |
1540 | if (_Alloc_traits::_S_propagate_on_copy_assign()) | |
1541 | { | |
1542 | if (!_Alloc_traits::_S_always_equal() && !_M_is_local() | |
1543 | && _M_get_allocator() != __str._M_get_allocator()) | |
1544 | { | |
1545 | // Propagating allocator cannot free existing storage so must | |
1546 | // deallocate it before replacing current allocator. | |
1547 | if (__str.size() <= _S_local_capacity) | |
1548 | { | |
1549 | _M_destroy(_M_allocated_capacity); | |
6afa1083 | 1550 | _M_data(_M_use_local_data()); |
db33efde NDR |
1551 | _M_set_length(0); |
1552 | } | |
1553 | else | |
1554 | { | |
1555 | const auto __len = __str.size(); | |
1556 | auto __alloc = __str._M_get_allocator(); | |
1557 | // If this allocation throws there are no effects: | |
1558 | auto __ptr = _Alloc_traits::allocate(__alloc, __len + 1); | |
1559 | _M_destroy(_M_allocated_capacity); | |
1560 | _M_data(__ptr); | |
1561 | _M_capacity(__len); | |
1562 | _M_set_length(__len); | |
1563 | } | |
1564 | } | |
1565 | std::__alloc_on_copy(_M_get_allocator(), __str._M_get_allocator()); | |
1566 | } | |
1567 | #endif | |
34a2b755 JW |
1568 | this->_M_assign(__str); |
1569 | return *this; | |
1570 | } | |
1571 | ||
1572 | #if __cplusplus >= 201103L | |
1573 | /** | |
1574 | * @brief Set value to contents of another string. | |
1575 | * @param __str Source string to use. | |
1576 | * @return Reference to this string. | |
1577 | * | |
1578 | * This function sets this string to the exact contents of @a __str. | |
1579 | * @a __str is a valid, but unspecified string. | |
1580 | */ | |
b96e2ff9 | 1581 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1582 | basic_string& |
1583 | assign(basic_string&& __str) | |
5caff414 | 1584 | noexcept(_Alloc_traits::_S_nothrow_move()) |
34a2b755 JW |
1585 | { |
1586 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
1587 | // 2063. Contradictory requirements for string move assignment | |
1588 | return *this = std::move(__str); | |
1589 | } | |
1590 | #endif // C++11 | |
1591 | ||
1592 | /** | |
1593 | * @brief Set value to a substring of a string. | |
1594 | * @param __str The string to use. | |
1595 | * @param __pos Index of the first character of str. | |
1596 | * @param __n Number of characters to use. | |
1597 | * @return Reference to this string. | |
1598 | * @throw std::out_of_range if @a pos is not a valid index. | |
1599 | * | |
1600 | * This function sets this string to the substring of @a __str | |
1601 | * consisting of @a __n characters at @a __pos. If @a __n is | |
1602 | * is larger than the number of available characters in @a | |
1603 | * __str, the remainder of @a __str is used. | |
1604 | */ | |
b96e2ff9 | 1605 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 1606 | basic_string& |
852ee53c | 1607 | assign(const basic_string& __str, size_type __pos, size_type __n = npos) |
2d60da10 | 1608 | { return _M_replace(size_type(0), this->size(), __str._M_data() |
34a2b755 JW |
1609 | + __str._M_check(__pos, "basic_string::assign"), |
1610 | __str._M_limit(__pos, __n)); } | |
1611 | ||
1612 | /** | |
1613 | * @brief Set value to a C substring. | |
1614 | * @param __s The C string to use. | |
1615 | * @param __n Number of characters to use. | |
1616 | * @return Reference to this string. | |
1617 | * | |
1618 | * This function sets the value of this string to the first @a __n | |
1619 | * characters of @a __s. If @a __n is is larger than the number of | |
1620 | * available characters in @a __s, the remainder of @a __s is used. | |
1621 | */ | |
b96e2ff9 | 1622 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1623 | basic_string& |
1624 | assign(const _CharT* __s, size_type __n) | |
1625 | { | |
1626 | __glibcxx_requires_string_len(__s, __n); | |
1627 | return _M_replace(size_type(0), this->size(), __s, __n); | |
1628 | } | |
1629 | ||
1630 | /** | |
1631 | * @brief Set value to contents of a C string. | |
1632 | * @param __s The C string to use. | |
1633 | * @return Reference to this string. | |
1634 | * | |
1635 | * This function sets the value of this string to the value of @a __s. | |
1636 | * The data is copied, so there is no dependence on @a __s once the | |
1637 | * function returns. | |
1638 | */ | |
b96e2ff9 | 1639 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1640 | basic_string& |
1641 | assign(const _CharT* __s) | |
1642 | { | |
1643 | __glibcxx_requires_string(__s); | |
1644 | return _M_replace(size_type(0), this->size(), __s, | |
1645 | traits_type::length(__s)); | |
1646 | } | |
1647 | ||
1648 | /** | |
1649 | * @brief Set value to multiple characters. | |
1650 | * @param __n Length of the resulting string. | |
1651 | * @param __c The character to use. | |
1652 | * @return Reference to this string. | |
1653 | * | |
1654 | * This function sets the value of this string to @a __n copies of | |
1655 | * character @a __c. | |
1656 | */ | |
b96e2ff9 | 1657 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1658 | basic_string& |
1659 | assign(size_type __n, _CharT __c) | |
1660 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } | |
1661 | ||
1662 | /** | |
1663 | * @brief Set value to a range of characters. | |
1664 | * @param __first Iterator referencing the first character to append. | |
1665 | * @param __last Iterator marking the end of the range. | |
1666 | * @return Reference to this string. | |
1667 | * | |
1668 | * Sets value of string to characters in the range [__first,__last). | |
1669 | */ | |
1670 | #if __cplusplus >= 201103L | |
1671 | template<class _InputIterator, | |
1672 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 1673 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1674 | #else |
1675 | template<class _InputIterator> | |
1676 | #endif | |
1677 | basic_string& | |
1678 | assign(_InputIterator __first, _InputIterator __last) | |
1679 | { return this->replace(begin(), end(), __first, __last); } | |
1680 | ||
1681 | #if __cplusplus >= 201103L | |
1682 | /** | |
1683 | * @brief Set value to an initializer_list of characters. | |
1684 | * @param __l The initializer_list of characters to assign. | |
1685 | * @return Reference to this string. | |
1686 | */ | |
b96e2ff9 | 1687 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1688 | basic_string& |
1689 | assign(initializer_list<_CharT> __l) | |
1690 | { return this->assign(__l.begin(), __l.size()); } | |
1691 | #endif // C++11 | |
1692 | ||
1a289fa3 | 1693 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1694 | /** |
1695 | * @brief Set value from a string_view. | |
df66af3b | 1696 | * @param __svt The source object convertible to string_view. |
ca8f2cb1 VV |
1697 | * @return Reference to this string. |
1698 | */ | |
df66af3b | 1699 | template<typename _Tp> |
b96e2ff9 | 1700 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1701 | _If_sv<_Tp, basic_string&> |
1702 | assign(const _Tp& __svt) | |
1703 | { | |
1704 | __sv_type __sv = __svt; | |
1705 | return this->assign(__sv.data(), __sv.size()); | |
1706 | } | |
ca8f2cb1 VV |
1707 | |
1708 | /** | |
1709 | * @brief Set value from a range of characters in a string_view. | |
df66af3b | 1710 | * @param __svt The source object convertible to string_view. |
ca8f2cb1 VV |
1711 | * @param __pos The position in the string_view to assign from. |
1712 | * @param __n The number of characters to assign. | |
1713 | * @return Reference to this string. | |
1714 | */ | |
df66af3b | 1715 | template<typename _Tp> |
b96e2ff9 | 1716 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
1717 | _If_sv<_Tp, basic_string&> |
1718 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) | |
1719 | { | |
1720 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
1721 | return _M_replace(size_type(0), this->size(), |
1722 | __sv.data() | |
1723 | + std::__sv_check(__sv.size(), __pos, "basic_string::assign"), | |
1724 | std::__sv_limit(__sv.size(), __pos, __n)); | |
657213f7 | 1725 | } |
ca8f2cb1 VV |
1726 | #endif // C++17 |
1727 | ||
34a2b755 JW |
1728 | #if __cplusplus >= 201103L |
1729 | /** | |
1730 | * @brief Insert multiple characters. | |
1731 | * @param __p Const_iterator referencing location in string to | |
1732 | * insert at. | |
1733 | * @param __n Number of characters to insert | |
1734 | * @param __c The character to insert. | |
1735 | * @return Iterator referencing the first inserted char. | |
1736 | * @throw std::length_error If new length exceeds @c max_size(). | |
1737 | * | |
1738 | * Inserts @a __n copies of character @a __c starting at the | |
1739 | * position referenced by iterator @a __p. If adding | |
1740 | * characters causes the length to exceed max_size(), | |
1741 | * length_error is thrown. The value of the string doesn't | |
1742 | * change if an error is thrown. | |
1743 | */ | |
b96e2ff9 | 1744 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1745 | iterator |
1746 | insert(const_iterator __p, size_type __n, _CharT __c) | |
1747 | { | |
1748 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1749 | const size_type __pos = __p - begin(); | |
1750 | this->replace(__p, __p, __n, __c); | |
1751 | return iterator(this->_M_data() + __pos); | |
1752 | } | |
1753 | #else | |
1754 | /** | |
1755 | * @brief Insert multiple characters. | |
1756 | * @param __p Iterator referencing location in string to insert at. | |
1757 | * @param __n Number of characters to insert | |
1758 | * @param __c The character to insert. | |
1759 | * @throw std::length_error If new length exceeds @c max_size(). | |
1760 | * | |
1761 | * Inserts @a __n copies of character @a __c starting at the | |
1762 | * position referenced by iterator @a __p. If adding | |
1763 | * characters causes the length to exceed max_size(), | |
1764 | * length_error is thrown. The value of the string doesn't | |
1765 | * change if an error is thrown. | |
1766 | */ | |
1767 | void | |
1768 | insert(iterator __p, size_type __n, _CharT __c) | |
1769 | { this->replace(__p, __p, __n, __c); } | |
1770 | #endif | |
1771 | ||
1772 | #if __cplusplus >= 201103L | |
1773 | /** | |
1774 | * @brief Insert a range of characters. | |
1775 | * @param __p Const_iterator referencing location in string to | |
1776 | * insert at. | |
1777 | * @param __beg Start of range. | |
1778 | * @param __end End of range. | |
1779 | * @return Iterator referencing the first inserted char. | |
1780 | * @throw std::length_error If new length exceeds @c max_size(). | |
1781 | * | |
1782 | * Inserts characters in range [beg,end). If adding characters | |
1783 | * causes the length to exceed max_size(), length_error is | |
1784 | * thrown. The value of the string doesn't change if an error | |
1785 | * is thrown. | |
1786 | */ | |
1787 | template<class _InputIterator, | |
1788 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 1789 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1790 | iterator |
1791 | insert(const_iterator __p, _InputIterator __beg, _InputIterator __end) | |
1792 | { | |
1793 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1794 | const size_type __pos = __p - begin(); | |
1795 | this->replace(__p, __p, __beg, __end); | |
1796 | return iterator(this->_M_data() + __pos); | |
1797 | } | |
1798 | #else | |
1799 | /** | |
1800 | * @brief Insert a range of characters. | |
1801 | * @param __p Iterator referencing location in string to insert at. | |
1802 | * @param __beg Start of range. | |
1803 | * @param __end End of range. | |
1804 | * @throw std::length_error If new length exceeds @c max_size(). | |
1805 | * | |
1806 | * Inserts characters in range [__beg,__end). If adding | |
1807 | * characters causes the length to exceed max_size(), | |
1808 | * length_error is thrown. The value of the string doesn't | |
1809 | * change if an error is thrown. | |
1810 | */ | |
1811 | template<class _InputIterator> | |
1812 | void | |
1813 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) | |
1814 | { this->replace(__p, __p, __beg, __end); } | |
1815 | #endif | |
1816 | ||
1817 | #if __cplusplus >= 201103L | |
1818 | /** | |
1819 | * @brief Insert an initializer_list of characters. | |
1820 | * @param __p Iterator referencing location in string to insert at. | |
1821 | * @param __l The initializer_list of characters to insert. | |
1822 | * @throw std::length_error If new length exceeds @c max_size(). | |
1823 | */ | |
b96e2ff9 | 1824 | _GLIBCXX20_CONSTEXPR |
cda121ac JW |
1825 | iterator |
1826 | insert(const_iterator __p, initializer_list<_CharT> __l) | |
1827 | { return this->insert(__p, __l.begin(), __l.end()); } | |
1828 | ||
1829 | #ifdef _GLIBCXX_DEFINING_STRING_INSTANTIATIONS | |
1830 | // See PR libstdc++/83328 | |
34a2b755 JW |
1831 | void |
1832 | insert(iterator __p, initializer_list<_CharT> __l) | |
1833 | { | |
1834 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1835 | this->insert(__p - begin(), __l.begin(), __l.size()); | |
1836 | } | |
cda121ac | 1837 | #endif |
34a2b755 JW |
1838 | #endif // C++11 |
1839 | ||
1840 | /** | |
1841 | * @brief Insert value of a string. | |
8c6a71e4 | 1842 | * @param __pos1 Position in string to insert at. |
34a2b755 JW |
1843 | * @param __str The string to insert. |
1844 | * @return Reference to this string. | |
1845 | * @throw std::length_error If new length exceeds @c max_size(). | |
1846 | * | |
1847 | * Inserts value of @a __str starting at @a __pos1. If adding | |
1848 | * characters causes the length to exceed max_size(), | |
1849 | * length_error is thrown. The value of the string doesn't | |
1850 | * change if an error is thrown. | |
1851 | */ | |
b96e2ff9 | 1852 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1853 | basic_string& |
1854 | insert(size_type __pos1, const basic_string& __str) | |
1855 | { return this->replace(__pos1, size_type(0), | |
2d60da10 | 1856 | __str._M_data(), __str.size()); } |
34a2b755 JW |
1857 | |
1858 | /** | |
1859 | * @brief Insert a substring. | |
8c6a71e4 JW |
1860 | * @param __pos1 Position in string to insert at. |
1861 | * @param __str The string to insert. | |
34a2b755 JW |
1862 | * @param __pos2 Start of characters in str to insert. |
1863 | * @param __n Number of characters to insert. | |
1864 | * @return Reference to this string. | |
1865 | * @throw std::length_error If new length exceeds @c max_size(). | |
1866 | * @throw std::out_of_range If @a pos1 > size() or | |
1867 | * @a __pos2 > @a str.size(). | |
1868 | * | |
1869 | * Starting at @a pos1, insert @a __n character of @a __str | |
1870 | * beginning with @a __pos2. If adding characters causes the | |
1871 | * length to exceed max_size(), length_error is thrown. If @a | |
1872 | * __pos1 is beyond the end of this string or @a __pos2 is | |
1873 | * beyond the end of @a __str, out_of_range is thrown. The | |
1874 | * value of the string doesn't change if an error is thrown. | |
1875 | */ | |
b96e2ff9 | 1876 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1877 | basic_string& |
1878 | insert(size_type __pos1, const basic_string& __str, | |
852ee53c | 1879 | size_type __pos2, size_type __n = npos) |
2d60da10 | 1880 | { return this->replace(__pos1, size_type(0), __str._M_data() |
34a2b755 JW |
1881 | + __str._M_check(__pos2, "basic_string::insert"), |
1882 | __str._M_limit(__pos2, __n)); } | |
1883 | ||
1884 | /** | |
1885 | * @brief Insert a C substring. | |
8c6a71e4 | 1886 | * @param __pos Position in string to insert at. |
34a2b755 JW |
1887 | * @param __s The C string to insert. |
1888 | * @param __n The number of characters to insert. | |
1889 | * @return Reference to this string. | |
1890 | * @throw std::length_error If new length exceeds @c max_size(). | |
1891 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1892 | * string. | |
1893 | * | |
1894 | * Inserts the first @a __n characters of @a __s starting at @a | |
1895 | * __pos. If adding characters causes the length to exceed | |
1896 | * max_size(), length_error is thrown. If @a __pos is beyond | |
1897 | * end(), out_of_range is thrown. The value of the string | |
1898 | * doesn't change if an error is thrown. | |
1899 | */ | |
b96e2ff9 | 1900 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1901 | basic_string& |
1902 | insert(size_type __pos, const _CharT* __s, size_type __n) | |
1903 | { return this->replace(__pos, size_type(0), __s, __n); } | |
1904 | ||
1905 | /** | |
1906 | * @brief Insert a C string. | |
8c6a71e4 | 1907 | * @param __pos Position in string to insert at. |
34a2b755 JW |
1908 | * @param __s The C string to insert. |
1909 | * @return Reference to this string. | |
1910 | * @throw std::length_error If new length exceeds @c max_size(). | |
1911 | * @throw std::out_of_range If @a pos is beyond the end of this | |
1912 | * string. | |
1913 | * | |
1914 | * Inserts the first @a n characters of @a __s starting at @a __pos. If | |
1915 | * adding characters causes the length to exceed max_size(), | |
1916 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is | |
1917 | * thrown. The value of the string doesn't change if an error is | |
1918 | * thrown. | |
1919 | */ | |
b96e2ff9 | 1920 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1921 | basic_string& |
1922 | insert(size_type __pos, const _CharT* __s) | |
1923 | { | |
1924 | __glibcxx_requires_string(__s); | |
1925 | return this->replace(__pos, size_type(0), __s, | |
1926 | traits_type::length(__s)); | |
1927 | } | |
1928 | ||
1929 | /** | |
1930 | * @brief Insert multiple characters. | |
1931 | * @param __pos Index in string to insert at. | |
1932 | * @param __n Number of characters to insert | |
1933 | * @param __c The character to insert. | |
1934 | * @return Reference to this string. | |
1935 | * @throw std::length_error If new length exceeds @c max_size(). | |
1936 | * @throw std::out_of_range If @a __pos is beyond the end of this | |
1937 | * string. | |
1938 | * | |
1939 | * Inserts @a __n copies of character @a __c starting at index | |
1940 | * @a __pos. If adding characters causes the length to exceed | |
1941 | * max_size(), length_error is thrown. If @a __pos > length(), | |
1942 | * out_of_range is thrown. The value of the string doesn't | |
1943 | * change if an error is thrown. | |
1944 | */ | |
b96e2ff9 | 1945 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1946 | basic_string& |
1947 | insert(size_type __pos, size_type __n, _CharT __c) | |
1948 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), | |
1949 | size_type(0), __n, __c); } | |
1950 | ||
1951 | /** | |
1952 | * @brief Insert one character. | |
1953 | * @param __p Iterator referencing position in string to insert at. | |
1954 | * @param __c The character to insert. | |
1955 | * @return Iterator referencing newly inserted char. | |
1956 | * @throw std::length_error If new length exceeds @c max_size(). | |
1957 | * | |
1958 | * Inserts character @a __c at position referenced by @a __p. | |
1959 | * If adding character causes the length to exceed max_size(), | |
1960 | * length_error is thrown. If @a __p is beyond end of string, | |
1961 | * out_of_range is thrown. The value of the string doesn't | |
1962 | * change if an error is thrown. | |
1963 | */ | |
b96e2ff9 | 1964 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
1965 | iterator |
1966 | insert(__const_iterator __p, _CharT __c) | |
1967 | { | |
1968 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); | |
1969 | const size_type __pos = __p - begin(); | |
1970 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); | |
1971 | return iterator(_M_data() + __pos); | |
1972 | } | |
1973 | ||
1a289fa3 | 1974 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
1975 | /** |
1976 | * @brief Insert a string_view. | |
8c6a71e4 | 1977 | * @param __pos Position in string to insert at. |
df66af3b | 1978 | * @param __svt The object convertible to string_view to insert. |
ca8f2cb1 VV |
1979 | * @return Reference to this string. |
1980 | */ | |
df66af3b | 1981 | template<typename _Tp> |
b96e2ff9 | 1982 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
1983 | _If_sv<_Tp, basic_string&> |
1984 | insert(size_type __pos, const _Tp& __svt) | |
1985 | { | |
1986 | __sv_type __sv = __svt; | |
1987 | return this->insert(__pos, __sv.data(), __sv.size()); | |
1988 | } | |
ca8f2cb1 VV |
1989 | |
1990 | /** | |
1991 | * @brief Insert a string_view. | |
8c6a71e4 JW |
1992 | * @param __pos1 Position in string to insert at. |
1993 | * @param __svt The object convertible to string_view to insert from. | |
1994 | * @param __pos2 Start of characters in str to insert. | |
ca8f2cb1 VV |
1995 | * @param __n The number of characters to insert. |
1996 | * @return Reference to this string. | |
1997 | */ | |
df66af3b | 1998 | template<typename _Tp> |
b96e2ff9 | 1999 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
2000 | _If_sv<_Tp, basic_string&> |
2001 | insert(size_type __pos1, const _Tp& __svt, | |
2002 | size_type __pos2, size_type __n = npos) | |
2003 | { | |
2004 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
2005 | return this->replace(__pos1, size_type(0), |
2006 | __sv.data() | |
2007 | + std::__sv_check(__sv.size(), __pos2, "basic_string::insert"), | |
2008 | std::__sv_limit(__sv.size(), __pos2, __n)); | |
657213f7 | 2009 | } |
ca8f2cb1 VV |
2010 | #endif // C++17 |
2011 | ||
34a2b755 JW |
2012 | /** |
2013 | * @brief Remove characters. | |
2014 | * @param __pos Index of first character to remove (default 0). | |
2015 | * @param __n Number of characters to remove (default remainder). | |
2016 | * @return Reference to this string. | |
2017 | * @throw std::out_of_range If @a pos is beyond the end of this | |
2018 | * string. | |
2019 | * | |
2020 | * Removes @a __n characters from this string starting at @a | |
2021 | * __pos. The length of the string is reduced by @a __n. If | |
2022 | * there are < @a __n characters to remove, the remainder of | |
2023 | * the string is truncated. If @a __p is beyond end of string, | |
2024 | * out_of_range is thrown. The value of the string doesn't | |
2025 | * change if an error is thrown. | |
2026 | */ | |
b96e2ff9 | 2027 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2028 | basic_string& |
2029 | erase(size_type __pos = 0, size_type __n = npos) | |
2030 | { | |
a922c5ff JW |
2031 | _M_check(__pos, "basic_string::erase"); |
2032 | if (__n == npos) | |
2033 | this->_M_set_length(__pos); | |
2034 | else if (__n != 0) | |
2035 | this->_M_erase(__pos, _M_limit(__pos, __n)); | |
34a2b755 JW |
2036 | return *this; |
2037 | } | |
2038 | ||
2039 | /** | |
2040 | * @brief Remove one character. | |
2041 | * @param __position Iterator referencing the character to remove. | |
2042 | * @return iterator referencing same location after removal. | |
2043 | * | |
2044 | * Removes the character at @a __position from this string. The value | |
2045 | * of the string doesn't change if an error is thrown. | |
2046 | */ | |
b96e2ff9 | 2047 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2048 | iterator |
2049 | erase(__const_iterator __position) | |
2050 | { | |
2051 | _GLIBCXX_DEBUG_PEDASSERT(__position >= begin() | |
2052 | && __position < end()); | |
2053 | const size_type __pos = __position - begin(); | |
2054 | this->_M_erase(__pos, size_type(1)); | |
2055 | return iterator(_M_data() + __pos); | |
2056 | } | |
2057 | ||
2058 | /** | |
2059 | * @brief Remove a range of characters. | |
2060 | * @param __first Iterator referencing the first character to remove. | |
2061 | * @param __last Iterator referencing the end of the range. | |
2062 | * @return Iterator referencing location of first after removal. | |
2063 | * | |
2064 | * Removes the characters in the range [first,last) from this string. | |
2065 | * The value of the string doesn't change if an error is thrown. | |
2066 | */ | |
b96e2ff9 | 2067 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2068 | iterator |
2069 | erase(__const_iterator __first, __const_iterator __last) | |
2070 | { | |
2071 | _GLIBCXX_DEBUG_PEDASSERT(__first >= begin() && __first <= __last | |
2072 | && __last <= end()); | |
2073 | const size_type __pos = __first - begin(); | |
a922c5ff JW |
2074 | if (__last == end()) |
2075 | this->_M_set_length(__pos); | |
2076 | else | |
2077 | this->_M_erase(__pos, __last - __first); | |
34a2b755 JW |
2078 | return iterator(this->_M_data() + __pos); |
2079 | } | |
2080 | ||
2081 | #if __cplusplus >= 201103L | |
2082 | /** | |
2083 | * @brief Remove the last character. | |
2084 | * | |
2085 | * The string must be non-empty. | |
2086 | */ | |
b96e2ff9 | 2087 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2088 | void |
2089 | pop_back() noexcept | |
e25d2617 | 2090 | { |
2f1e8e7c | 2091 | __glibcxx_assert(!empty()); |
e25d2617 FD |
2092 | _M_erase(size() - 1, 1); |
2093 | } | |
34a2b755 JW |
2094 | #endif // C++11 |
2095 | ||
2096 | /** | |
2097 | * @brief Replace characters with value from another string. | |
2098 | * @param __pos Index of first character to replace. | |
2099 | * @param __n Number of characters to be replaced. | |
2100 | * @param __str String to insert. | |
2101 | * @return Reference to this string. | |
2102 | * @throw std::out_of_range If @a pos is beyond the end of this | |
2103 | * string. | |
2104 | * @throw std::length_error If new length exceeds @c max_size(). | |
2105 | * | |
2106 | * Removes the characters in the range [__pos,__pos+__n) from | |
2107 | * this string. In place, the value of @a __str is inserted. | |
2108 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
2109 | * If the length of the result exceeds max_size(), length_error | |
2110 | * is thrown. The value of the string doesn't change if an | |
2111 | * error is thrown. | |
2112 | */ | |
b96e2ff9 | 2113 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2114 | basic_string& |
2115 | replace(size_type __pos, size_type __n, const basic_string& __str) | |
2d60da10 | 2116 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
34a2b755 JW |
2117 | |
2118 | /** | |
2119 | * @brief Replace characters with value from another string. | |
2120 | * @param __pos1 Index of first character to replace. | |
2121 | * @param __n1 Number of characters to be replaced. | |
2122 | * @param __str String to insert. | |
2123 | * @param __pos2 Index of first character of str to use. | |
2124 | * @param __n2 Number of characters from str to use. | |
2125 | * @return Reference to this string. | |
2126 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > | |
2127 | * __str.size(). | |
2128 | * @throw std::length_error If new length exceeds @c max_size(). | |
2129 | * | |
2130 | * Removes the characters in the range [__pos1,__pos1 + n) from this | |
2131 | * string. In place, the value of @a __str is inserted. If @a __pos is | |
2132 | * beyond end of string, out_of_range is thrown. If the length of the | |
2133 | * result exceeds max_size(), length_error is thrown. The value of the | |
2134 | * string doesn't change if an error is thrown. | |
2135 | */ | |
b96e2ff9 | 2136 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2137 | basic_string& |
2138 | replace(size_type __pos1, size_type __n1, const basic_string& __str, | |
852ee53c | 2139 | size_type __pos2, size_type __n2 = npos) |
2d60da10 | 2140 | { return this->replace(__pos1, __n1, __str._M_data() |
34a2b755 JW |
2141 | + __str._M_check(__pos2, "basic_string::replace"), |
2142 | __str._M_limit(__pos2, __n2)); } | |
2143 | ||
2144 | /** | |
2145 | * @brief Replace characters with value of a C substring. | |
2146 | * @param __pos Index of first character to replace. | |
2147 | * @param __n1 Number of characters to be replaced. | |
2148 | * @param __s C string to insert. | |
2149 | * @param __n2 Number of characters from @a s to use. | |
2150 | * @return Reference to this string. | |
2151 | * @throw std::out_of_range If @a pos1 > size(). | |
2152 | * @throw std::length_error If new length exceeds @c max_size(). | |
2153 | * | |
2154 | * Removes the characters in the range [__pos,__pos + __n1) | |
2155 | * from this string. In place, the first @a __n2 characters of | |
2156 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If | |
2157 | * @a __pos is beyond end of string, out_of_range is thrown. If | |
2158 | * the length of result exceeds max_size(), length_error is | |
2159 | * thrown. The value of the string doesn't change if an error | |
2160 | * is thrown. | |
2161 | */ | |
b96e2ff9 | 2162 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2163 | basic_string& |
2164 | replace(size_type __pos, size_type __n1, const _CharT* __s, | |
2165 | size_type __n2) | |
2166 | { | |
2167 | __glibcxx_requires_string_len(__s, __n2); | |
2168 | return _M_replace(_M_check(__pos, "basic_string::replace"), | |
2169 | _M_limit(__pos, __n1), __s, __n2); | |
2170 | } | |
2171 | ||
2172 | /** | |
2173 | * @brief Replace characters with value of a C string. | |
2174 | * @param __pos Index of first character to replace. | |
2175 | * @param __n1 Number of characters to be replaced. | |
2176 | * @param __s C string to insert. | |
2177 | * @return Reference to this string. | |
2178 | * @throw std::out_of_range If @a pos > size(). | |
2179 | * @throw std::length_error If new length exceeds @c max_size(). | |
2180 | * | |
2181 | * Removes the characters in the range [__pos,__pos + __n1) | |
2182 | * from this string. In place, the characters of @a __s are | |
2183 | * inserted. If @a __pos is beyond end of string, out_of_range | |
2184 | * is thrown. If the length of result exceeds max_size(), | |
2185 | * length_error is thrown. The value of the string doesn't | |
2186 | * change if an error is thrown. | |
2187 | */ | |
b96e2ff9 | 2188 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2189 | basic_string& |
2190 | replace(size_type __pos, size_type __n1, const _CharT* __s) | |
2191 | { | |
2192 | __glibcxx_requires_string(__s); | |
2193 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); | |
2194 | } | |
2195 | ||
2196 | /** | |
2197 | * @brief Replace characters with multiple characters. | |
2198 | * @param __pos Index of first character to replace. | |
2199 | * @param __n1 Number of characters to be replaced. | |
2200 | * @param __n2 Number of characters to insert. | |
2201 | * @param __c Character to insert. | |
2202 | * @return Reference to this string. | |
2203 | * @throw std::out_of_range If @a __pos > size(). | |
2204 | * @throw std::length_error If new length exceeds @c max_size(). | |
2205 | * | |
2206 | * Removes the characters in the range [pos,pos + n1) from this | |
2207 | * string. In place, @a __n2 copies of @a __c are inserted. | |
2208 | * If @a __pos is beyond end of string, out_of_range is thrown. | |
2209 | * If the length of result exceeds max_size(), length_error is | |
2210 | * thrown. The value of the string doesn't change if an error | |
2211 | * is thrown. | |
2212 | */ | |
b96e2ff9 | 2213 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2214 | basic_string& |
2215 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) | |
2216 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), | |
2217 | _M_limit(__pos, __n1), __n2, __c); } | |
2218 | ||
2219 | /** | |
2220 | * @brief Replace range of characters with string. | |
2221 | * @param __i1 Iterator referencing start of range to replace. | |
2222 | * @param __i2 Iterator referencing end of range to replace. | |
2223 | * @param __str String value to insert. | |
2224 | * @return Reference to this string. | |
2225 | * @throw std::length_error If new length exceeds @c max_size(). | |
2226 | * | |
2227 | * Removes the characters in the range [__i1,__i2). In place, | |
2228 | * the value of @a __str is inserted. If the length of result | |
2229 | * exceeds max_size(), length_error is thrown. The value of | |
2230 | * the string doesn't change if an error is thrown. | |
2231 | */ | |
b96e2ff9 | 2232 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2233 | basic_string& |
2234 | replace(__const_iterator __i1, __const_iterator __i2, | |
2235 | const basic_string& __str) | |
2d60da10 | 2236 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
34a2b755 JW |
2237 | |
2238 | /** | |
2239 | * @brief Replace range of characters with C substring. | |
2240 | * @param __i1 Iterator referencing start of range to replace. | |
2241 | * @param __i2 Iterator referencing end of range to replace. | |
2242 | * @param __s C string value to insert. | |
2243 | * @param __n Number of characters from s to insert. | |
2244 | * @return Reference to this string. | |
2245 | * @throw std::length_error If new length exceeds @c max_size(). | |
2246 | * | |
2247 | * Removes the characters in the range [__i1,__i2). In place, | |
2248 | * the first @a __n characters of @a __s are inserted. If the | |
2249 | * length of result exceeds max_size(), length_error is thrown. | |
2250 | * The value of the string doesn't change if an error is | |
2251 | * thrown. | |
2252 | */ | |
b96e2ff9 | 2253 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2254 | basic_string& |
2255 | replace(__const_iterator __i1, __const_iterator __i2, | |
2256 | const _CharT* __s, size_type __n) | |
2257 | { | |
2258 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2259 | && __i2 <= end()); | |
2260 | return this->replace(__i1 - begin(), __i2 - __i1, __s, __n); | |
2261 | } | |
2262 | ||
2263 | /** | |
2264 | * @brief Replace range of characters with C string. | |
2265 | * @param __i1 Iterator referencing start of range to replace. | |
2266 | * @param __i2 Iterator referencing end of range to replace. | |
2267 | * @param __s C string value to insert. | |
2268 | * @return Reference to this string. | |
2269 | * @throw std::length_error If new length exceeds @c max_size(). | |
2270 | * | |
2271 | * Removes the characters in the range [__i1,__i2). In place, | |
2272 | * the characters of @a __s are inserted. If the length of | |
2273 | * result exceeds max_size(), length_error is thrown. The | |
2274 | * value of the string doesn't change if an error is thrown. | |
2275 | */ | |
b96e2ff9 | 2276 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2277 | basic_string& |
2278 | replace(__const_iterator __i1, __const_iterator __i2, const _CharT* __s) | |
2279 | { | |
2280 | __glibcxx_requires_string(__s); | |
2281 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); | |
2282 | } | |
2283 | ||
2284 | /** | |
2285 | * @brief Replace range of characters with multiple characters | |
2286 | * @param __i1 Iterator referencing start of range to replace. | |
2287 | * @param __i2 Iterator referencing end of range to replace. | |
2288 | * @param __n Number of characters to insert. | |
2289 | * @param __c Character to insert. | |
2290 | * @return Reference to this string. | |
2291 | * @throw std::length_error If new length exceeds @c max_size(). | |
2292 | * | |
2293 | * Removes the characters in the range [__i1,__i2). In place, | |
2294 | * @a __n copies of @a __c are inserted. If the length of | |
2295 | * result exceeds max_size(), length_error is thrown. The | |
2296 | * value of the string doesn't change if an error is thrown. | |
2297 | */ | |
b96e2ff9 | 2298 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2299 | basic_string& |
2300 | replace(__const_iterator __i1, __const_iterator __i2, size_type __n, | |
2301 | _CharT __c) | |
2302 | { | |
2303 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2304 | && __i2 <= end()); | |
2305 | return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __c); | |
2306 | } | |
2307 | ||
2308 | /** | |
2309 | * @brief Replace range of characters with range. | |
2310 | * @param __i1 Iterator referencing start of range to replace. | |
2311 | * @param __i2 Iterator referencing end of range to replace. | |
2312 | * @param __k1 Iterator referencing start of range to insert. | |
2313 | * @param __k2 Iterator referencing end of range to insert. | |
2314 | * @return Reference to this string. | |
2315 | * @throw std::length_error If new length exceeds @c max_size(). | |
2316 | * | |
2317 | * Removes the characters in the range [__i1,__i2). In place, | |
2318 | * characters in the range [__k1,__k2) are inserted. If the | |
2319 | * length of result exceeds max_size(), length_error is thrown. | |
2320 | * The value of the string doesn't change if an error is | |
2321 | * thrown. | |
2322 | */ | |
2323 | #if __cplusplus >= 201103L | |
2324 | template<class _InputIterator, | |
2325 | typename = std::_RequireInputIter<_InputIterator>> | |
b96e2ff9 | 2326 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2327 | basic_string& |
2328 | replace(const_iterator __i1, const_iterator __i2, | |
2329 | _InputIterator __k1, _InputIterator __k2) | |
2330 | { | |
2331 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2332 | && __i2 <= end()); | |
2333 | __glibcxx_requires_valid_range(__k1, __k2); | |
2334 | return this->_M_replace_dispatch(__i1, __i2, __k1, __k2, | |
2335 | std::__false_type()); | |
2336 | } | |
2337 | #else | |
2338 | template<class _InputIterator> | |
2339 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST | |
2340 | typename __enable_if_not_native_iterator<_InputIterator>::__type | |
2341 | #else | |
2342 | basic_string& | |
2343 | #endif | |
2344 | replace(iterator __i1, iterator __i2, | |
2345 | _InputIterator __k1, _InputIterator __k2) | |
2346 | { | |
2347 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2348 | && __i2 <= end()); | |
2349 | __glibcxx_requires_valid_range(__k1, __k2); | |
2350 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; | |
2351 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); | |
2352 | } | |
2353 | #endif | |
2354 | ||
2355 | // Specializations for the common case of pointer and iterator: | |
2356 | // useful to avoid the overhead of temporary buffering in _M_replace. | |
b96e2ff9 | 2357 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2358 | basic_string& |
2359 | replace(__const_iterator __i1, __const_iterator __i2, | |
2360 | _CharT* __k1, _CharT* __k2) | |
2361 | { | |
2362 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2363 | && __i2 <= end()); | |
2364 | __glibcxx_requires_valid_range(__k1, __k2); | |
2365 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2366 | __k1, __k2 - __k1); | |
2367 | } | |
2368 | ||
b96e2ff9 | 2369 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2370 | basic_string& |
2371 | replace(__const_iterator __i1, __const_iterator __i2, | |
2372 | const _CharT* __k1, const _CharT* __k2) | |
2373 | { | |
2374 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2375 | && __i2 <= end()); | |
2376 | __glibcxx_requires_valid_range(__k1, __k2); | |
2377 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2378 | __k1, __k2 - __k1); | |
2379 | } | |
2380 | ||
b96e2ff9 | 2381 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2382 | basic_string& |
2383 | replace(__const_iterator __i1, __const_iterator __i2, | |
2384 | iterator __k1, iterator __k2) | |
2385 | { | |
2386 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2387 | && __i2 <= end()); | |
2388 | __glibcxx_requires_valid_range(__k1, __k2); | |
2389 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2390 | __k1.base(), __k2 - __k1); | |
2391 | } | |
2392 | ||
b96e2ff9 | 2393 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2394 | basic_string& |
2395 | replace(__const_iterator __i1, __const_iterator __i2, | |
2396 | const_iterator __k1, const_iterator __k2) | |
2397 | { | |
2398 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 | |
2399 | && __i2 <= end()); | |
2400 | __glibcxx_requires_valid_range(__k1, __k2); | |
2401 | return this->replace(__i1 - begin(), __i2 - __i1, | |
2402 | __k1.base(), __k2 - __k1); | |
2403 | } | |
2404 | ||
2405 | #if __cplusplus >= 201103L | |
2406 | /** | |
2407 | * @brief Replace range of characters with initializer_list. | |
2408 | * @param __i1 Iterator referencing start of range to replace. | |
2409 | * @param __i2 Iterator referencing end of range to replace. | |
2410 | * @param __l The initializer_list of characters to insert. | |
2411 | * @return Reference to this string. | |
2412 | * @throw std::length_error If new length exceeds @c max_size(). | |
2413 | * | |
2414 | * Removes the characters in the range [__i1,__i2). In place, | |
2415 | * characters in the range [__k1,__k2) are inserted. If the | |
2416 | * length of result exceeds max_size(), length_error is thrown. | |
2417 | * The value of the string doesn't change if an error is | |
2418 | * thrown. | |
2419 | */ | |
b96e2ff9 | 2420 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2421 | basic_string& replace(const_iterator __i1, const_iterator __i2, |
2422 | initializer_list<_CharT> __l) | |
17f8dc93 | 2423 | { return this->replace(__i1, __i2, __l.begin(), __l.size()); } |
34a2b755 JW |
2424 | #endif // C++11 |
2425 | ||
1a289fa3 | 2426 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2427 | /** |
2428 | * @brief Replace range of characters with string_view. | |
2429 | * @param __pos The position to replace at. | |
2430 | * @param __n The number of characters to replace. | |
df66af3b | 2431 | * @param __svt The object convertible to string_view to insert. |
ca8f2cb1 VV |
2432 | * @return Reference to this string. |
2433 | */ | |
df66af3b | 2434 | template<typename _Tp> |
b96e2ff9 | 2435 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2436 | _If_sv<_Tp, basic_string&> |
2437 | replace(size_type __pos, size_type __n, const _Tp& __svt) | |
2438 | { | |
2439 | __sv_type __sv = __svt; | |
2440 | return this->replace(__pos, __n, __sv.data(), __sv.size()); | |
2441 | } | |
ca8f2cb1 VV |
2442 | |
2443 | /** | |
2444 | * @brief Replace range of characters with string_view. | |
2445 | * @param __pos1 The position to replace at. | |
2446 | * @param __n1 The number of characters to replace. | |
df66af3b | 2447 | * @param __svt The object convertible to string_view to insert from. |
ca8f2cb1 VV |
2448 | * @param __pos2 The position in the string_view to insert from. |
2449 | * @param __n2 The number of characters to insert. | |
2450 | * @return Reference to this string. | |
2451 | */ | |
df66af3b | 2452 | template<typename _Tp> |
b96e2ff9 | 2453 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
2454 | _If_sv<_Tp, basic_string&> |
2455 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, | |
2456 | size_type __pos2, size_type __n2 = npos) | |
2457 | { | |
2458 | __sv_type __sv = __svt; | |
fb8b3e29 JW |
2459 | return this->replace(__pos1, __n1, |
2460 | __sv.data() | |
2461 | + std::__sv_check(__sv.size(), __pos2, "basic_string::replace"), | |
2462 | std::__sv_limit(__sv.size(), __pos2, __n2)); | |
657213f7 | 2463 | } |
ca8f2cb1 VV |
2464 | |
2465 | /** | |
2466 | * @brief Replace range of characters with string_view. | |
2467 | * @param __i1 An iterator referencing the start position | |
2468 | to replace at. | |
2469 | * @param __i2 An iterator referencing the end position | |
2470 | for the replace. | |
df66af3b | 2471 | * @param __svt The object convertible to string_view to insert from. |
ca8f2cb1 VV |
2472 | * @return Reference to this string. |
2473 | */ | |
df66af3b | 2474 | template<typename _Tp> |
b96e2ff9 | 2475 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2476 | _If_sv<_Tp, basic_string&> |
2477 | replace(const_iterator __i1, const_iterator __i2, const _Tp& __svt) | |
2478 | { | |
2479 | __sv_type __sv = __svt; | |
2480 | return this->replace(__i1 - begin(), __i2 - __i1, __sv); | |
2481 | } | |
ca8f2cb1 VV |
2482 | #endif // C++17 |
2483 | ||
34a2b755 JW |
2484 | private: |
2485 | template<class _Integer> | |
b96e2ff9 | 2486 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2487 | basic_string& |
2488 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2489 | _Integer __n, _Integer __val, __true_type) | |
2490 | { return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __val); } | |
2491 | ||
2492 | template<class _InputIterator> | |
b96e2ff9 | 2493 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2494 | basic_string& |
2495 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, | |
2496 | _InputIterator __k1, _InputIterator __k2, | |
2497 | __false_type); | |
2498 | ||
b96e2ff9 | 2499 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2500 | basic_string& |
2501 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, | |
2502 | _CharT __c); | |
2503 | ||
b96e2ff9 | 2504 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2505 | basic_string& |
2506 | _M_replace(size_type __pos, size_type __len1, const _CharT* __s, | |
2507 | const size_type __len2); | |
2508 | ||
b96e2ff9 | 2509 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2510 | basic_string& |
2511 | _M_append(const _CharT* __s, size_type __n); | |
2512 | ||
2513 | public: | |
2514 | ||
2515 | /** | |
2516 | * @brief Copy substring into C string. | |
2517 | * @param __s C string to copy value into. | |
2518 | * @param __n Number of characters to copy. | |
2519 | * @param __pos Index of first character to copy. | |
2520 | * @return Number of characters actually copied | |
2521 | * @throw std::out_of_range If __pos > size(). | |
2522 | * | |
2523 | * Copies up to @a __n characters starting at @a __pos into the | |
2524 | * C string @a __s. If @a __pos is %greater than size(), | |
2525 | * out_of_range is thrown. | |
2526 | */ | |
b96e2ff9 | 2527 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2528 | size_type |
2529 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; | |
2530 | ||
2531 | /** | |
2532 | * @brief Swap contents with another string. | |
2533 | * @param __s String to swap with. | |
2534 | * | |
2535 | * Exchanges the contents of this string with that of @a __s in constant | |
2536 | * time. | |
2537 | */ | |
b96e2ff9 | 2538 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2539 | void |
2540 | swap(basic_string& __s) _GLIBCXX_NOEXCEPT; | |
2541 | ||
2542 | // String operations: | |
2543 | /** | |
2544 | * @brief Return const pointer to null-terminated contents. | |
2545 | * | |
2546 | * This is a handle to internal data. Do not modify or dire things may | |
2547 | * happen. | |
2548 | */ | |
b96e2ff9 | 2549 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2550 | const _CharT* |
2551 | c_str() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2552 | { return _M_data(); } |
34a2b755 JW |
2553 | |
2554 | /** | |
2555 | * @brief Return const pointer to contents. | |
2556 | * | |
92d58dee JW |
2557 | * This is a pointer to internal data. It is undefined to modify |
2558 | * the contents through the returned pointer. To get a pointer that | |
2559 | * allows modifying the contents use @c &str[0] instead, | |
2560 | * (or in C++17 the non-const @c str.data() overload). | |
34a2b755 | 2561 | */ |
b96e2ff9 | 2562 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2563 | const _CharT* |
2564 | data() const _GLIBCXX_NOEXCEPT | |
2d60da10 | 2565 | { return _M_data(); } |
34a2b755 | 2566 | |
1a289fa3 | 2567 | #if __cplusplus >= 201703L |
92d58dee JW |
2568 | /** |
2569 | * @brief Return non-const pointer to contents. | |
2570 | * | |
2571 | * This is a pointer to the character sequence held by the string. | |
2572 | * Modifying the characters in the sequence is allowed. | |
2573 | */ | |
b96e2ff9 | 2574 | _GLIBCXX20_CONSTEXPR |
92d58dee JW |
2575 | _CharT* |
2576 | data() noexcept | |
2577 | { return _M_data(); } | |
2578 | #endif | |
2579 | ||
34a2b755 JW |
2580 | /** |
2581 | * @brief Return copy of allocator used to construct this string. | |
2582 | */ | |
b96e2ff9 | 2583 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2584 | allocator_type |
2585 | get_allocator() const _GLIBCXX_NOEXCEPT | |
2586 | { return _M_get_allocator(); } | |
2587 | ||
2588 | /** | |
2589 | * @brief Find position of a C substring. | |
2590 | * @param __s C string to locate. | |
2591 | * @param __pos Index of character to search from. | |
2592 | * @param __n Number of characters from @a s to search for. | |
2593 | * @return Index of start of first occurrence. | |
2594 | * | |
2595 | * Starting from @a __pos, searches forward for the first @a | |
2596 | * __n characters in @a __s within this string. If found, | |
2597 | * returns the index where it begins. If not found, returns | |
2598 | * npos. | |
2599 | */ | |
b96e2ff9 | 2600 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2601 | size_type |
39a03251 JW |
2602 | find(const _CharT* __s, size_type __pos, size_type __n) const |
2603 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2604 | |
2605 | /** | |
2606 | * @brief Find position of a string. | |
2607 | * @param __str String to locate. | |
2608 | * @param __pos Index of character to search from (default 0). | |
2609 | * @return Index of start of first occurrence. | |
2610 | * | |
2611 | * Starting from @a __pos, searches forward for value of @a __str within | |
2612 | * this string. If found, returns the index where it begins. If not | |
2613 | * found, returns npos. | |
2614 | */ | |
b96e2ff9 | 2615 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2616 | size_type |
2617 | find(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2618 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2619 | { return this->find(__str.data(), __pos, __str.size()); } |
2620 | ||
1a289fa3 | 2621 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2622 | /** |
2623 | * @brief Find position of a string_view. | |
df66af3b | 2624 | * @param __svt The object convertible to string_view to locate. |
ca8f2cb1 VV |
2625 | * @param __pos Index of character to search from (default 0). |
2626 | * @return Index of start of first occurrence. | |
2627 | */ | |
df66af3b | 2628 | template<typename _Tp> |
b96e2ff9 | 2629 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2630 | _If_sv<_Tp, size_type> |
2631 | find(const _Tp& __svt, size_type __pos = 0) const | |
2632 | noexcept(is_same<_Tp, __sv_type>::value) | |
2633 | { | |
2634 | __sv_type __sv = __svt; | |
2635 | return this->find(__sv.data(), __pos, __sv.size()); | |
2636 | } | |
ca8f2cb1 VV |
2637 | #endif // C++17 |
2638 | ||
34a2b755 JW |
2639 | /** |
2640 | * @brief Find position of a C string. | |
2641 | * @param __s C string to locate. | |
2642 | * @param __pos Index of character to search from (default 0). | |
2643 | * @return Index of start of first occurrence. | |
2644 | * | |
2645 | * Starting from @a __pos, searches forward for the value of @a | |
2646 | * __s within this string. If found, returns the index where | |
2647 | * it begins. If not found, returns npos. | |
2648 | */ | |
b96e2ff9 | 2649 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2650 | size_type |
39a03251 | 2651 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2652 | { |
2653 | __glibcxx_requires_string(__s); | |
2654 | return this->find(__s, __pos, traits_type::length(__s)); | |
2655 | } | |
2656 | ||
2657 | /** | |
2658 | * @brief Find position of a character. | |
2659 | * @param __c Character to locate. | |
2660 | * @param __pos Index of character to search from (default 0). | |
2661 | * @return Index of first occurrence. | |
2662 | * | |
2663 | * Starting from @a __pos, searches forward for @a __c within | |
2664 | * this string. If found, returns the index where it was | |
2665 | * found. If not found, returns npos. | |
2666 | */ | |
b96e2ff9 | 2667 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2668 | size_type |
2669 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT; | |
2670 | ||
2671 | /** | |
2672 | * @brief Find last position of a string. | |
2673 | * @param __str String to locate. | |
2674 | * @param __pos Index of character to search back from (default end). | |
2675 | * @return Index of start of last occurrence. | |
2676 | * | |
2677 | * Starting from @a __pos, searches backward for value of @a | |
2678 | * __str within this string. If found, returns the index where | |
2679 | * it begins. If not found, returns npos. | |
2680 | */ | |
b96e2ff9 | 2681 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2682 | size_type |
2683 | rfind(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2684 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2685 | { return this->rfind(__str.data(), __pos, __str.size()); } |
2686 | ||
1a289fa3 | 2687 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2688 | /** |
2689 | * @brief Find last position of a string_view. | |
df66af3b | 2690 | * @param __svt The object convertible to string_view to locate. |
ca8f2cb1 VV |
2691 | * @param __pos Index of character to search back from (default end). |
2692 | * @return Index of start of last occurrence. | |
2693 | */ | |
df66af3b | 2694 | template<typename _Tp> |
b96e2ff9 | 2695 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2696 | _If_sv<_Tp, size_type> |
2697 | rfind(const _Tp& __svt, size_type __pos = npos) const | |
2698 | noexcept(is_same<_Tp, __sv_type>::value) | |
2699 | { | |
2700 | __sv_type __sv = __svt; | |
2701 | return this->rfind(__sv.data(), __pos, __sv.size()); | |
2702 | } | |
ca8f2cb1 VV |
2703 | #endif // C++17 |
2704 | ||
34a2b755 JW |
2705 | /** |
2706 | * @brief Find last position of a C substring. | |
2707 | * @param __s C string to locate. | |
2708 | * @param __pos Index of character to search back from. | |
2709 | * @param __n Number of characters from s to search for. | |
2710 | * @return Index of start of last occurrence. | |
2711 | * | |
2712 | * Starting from @a __pos, searches backward for the first @a | |
2713 | * __n characters in @a __s within this string. If found, | |
2714 | * returns the index where it begins. If not found, returns | |
2715 | * npos. | |
2716 | */ | |
b96e2ff9 | 2717 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2718 | size_type |
39a03251 JW |
2719 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
2720 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2721 | |
2722 | /** | |
2723 | * @brief Find last position of a C string. | |
2724 | * @param __s C string to locate. | |
2725 | * @param __pos Index of character to start search at (default end). | |
2726 | * @return Index of start of last occurrence. | |
2727 | * | |
2728 | * Starting from @a __pos, searches backward for the value of | |
2729 | * @a __s within this string. If found, returns the index | |
2730 | * where it begins. If not found, returns npos. | |
2731 | */ | |
b96e2ff9 | 2732 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2733 | size_type |
2734 | rfind(const _CharT* __s, size_type __pos = npos) const | |
2735 | { | |
2736 | __glibcxx_requires_string(__s); | |
2737 | return this->rfind(__s, __pos, traits_type::length(__s)); | |
2738 | } | |
2739 | ||
2740 | /** | |
2741 | * @brief Find last position of a character. | |
2742 | * @param __c Character to locate. | |
2743 | * @param __pos Index of character to search back from (default end). | |
2744 | * @return Index of last occurrence. | |
2745 | * | |
2746 | * Starting from @a __pos, searches backward for @a __c within | |
2747 | * this string. If found, returns the index where it was | |
2748 | * found. If not found, returns npos. | |
2749 | */ | |
b96e2ff9 | 2750 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2751 | size_type |
2752 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT; | |
2753 | ||
2754 | /** | |
2755 | * @brief Find position of a character of string. | |
2756 | * @param __str String containing characters to locate. | |
2757 | * @param __pos Index of character to search from (default 0). | |
2758 | * @return Index of first occurrence. | |
2759 | * | |
2760 | * Starting from @a __pos, searches forward for one of the | |
2761 | * characters of @a __str within this string. If found, | |
2762 | * returns the index where it was found. If not found, returns | |
2763 | * npos. | |
2764 | */ | |
b96e2ff9 | 2765 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2766 | size_type |
2767 | find_first_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2768 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2769 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
2770 | ||
1a289fa3 | 2771 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2772 | /** |
2773 | * @brief Find position of a character of a string_view. | |
df66af3b DK |
2774 | * @param __svt An object convertible to string_view containing |
2775 | * characters to locate. | |
ca8f2cb1 VV |
2776 | * @param __pos Index of character to search from (default 0). |
2777 | * @return Index of first occurrence. | |
2778 | */ | |
df66af3b | 2779 | template<typename _Tp> |
b96e2ff9 | 2780 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2781 | _If_sv<_Tp, size_type> |
2782 | find_first_of(const _Tp& __svt, size_type __pos = 0) const | |
2783 | noexcept(is_same<_Tp, __sv_type>::value) | |
2784 | { | |
2785 | __sv_type __sv = __svt; | |
2786 | return this->find_first_of(__sv.data(), __pos, __sv.size()); | |
2787 | } | |
ca8f2cb1 VV |
2788 | #endif // C++17 |
2789 | ||
34a2b755 JW |
2790 | /** |
2791 | * @brief Find position of a character of C substring. | |
2792 | * @param __s String containing characters to locate. | |
2793 | * @param __pos Index of character to search from. | |
2794 | * @param __n Number of characters from s to search for. | |
2795 | * @return Index of first occurrence. | |
2796 | * | |
2797 | * Starting from @a __pos, searches forward for one of the | |
2798 | * first @a __n characters of @a __s within this string. If | |
2799 | * found, returns the index where it was found. If not found, | |
2800 | * returns npos. | |
2801 | */ | |
b96e2ff9 | 2802 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2803 | size_type |
39a03251 JW |
2804 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
2805 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2806 | |
2807 | /** | |
2808 | * @brief Find position of a character of C string. | |
2809 | * @param __s String containing characters to locate. | |
2810 | * @param __pos Index of character to search from (default 0). | |
2811 | * @return Index of first occurrence. | |
2812 | * | |
2813 | * Starting from @a __pos, searches forward for one of the | |
2814 | * characters of @a __s within this string. If found, returns | |
2815 | * the index where it was found. If not found, returns npos. | |
2816 | */ | |
b96e2ff9 | 2817 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2818 | size_type |
2819 | find_first_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2820 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2821 | { |
2822 | __glibcxx_requires_string(__s); | |
2823 | return this->find_first_of(__s, __pos, traits_type::length(__s)); | |
2824 | } | |
2825 | ||
2826 | /** | |
2827 | * @brief Find position of a character. | |
2828 | * @param __c Character to locate. | |
2829 | * @param __pos Index of character to search from (default 0). | |
2830 | * @return Index of first occurrence. | |
2831 | * | |
2832 | * Starting from @a __pos, searches forward for the character | |
2833 | * @a __c within this string. If found, returns the index | |
2834 | * where it was found. If not found, returns npos. | |
2835 | * | |
2836 | * Note: equivalent to find(__c, __pos). | |
2837 | */ | |
b96e2ff9 | 2838 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2839 | size_type |
2840 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPT | |
2841 | { return this->find(__c, __pos); } | |
2842 | ||
2843 | /** | |
2844 | * @brief Find last position of a character of string. | |
2845 | * @param __str String containing characters to locate. | |
2846 | * @param __pos Index of character to search back from (default end). | |
2847 | * @return Index of last occurrence. | |
2848 | * | |
2849 | * Starting from @a __pos, searches backward for one of the | |
2850 | * characters of @a __str within this string. If found, | |
2851 | * returns the index where it was found. If not found, returns | |
2852 | * npos. | |
2853 | */ | |
b96e2ff9 | 2854 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2855 | size_type |
2856 | find_last_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 2857 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2858 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
2859 | ||
1a289fa3 | 2860 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2861 | /** |
2862 | * @brief Find last position of a character of string. | |
df66af3b DK |
2863 | * @param __svt An object convertible to string_view containing |
2864 | * characters to locate. | |
ca8f2cb1 VV |
2865 | * @param __pos Index of character to search back from (default end). |
2866 | * @return Index of last occurrence. | |
2867 | */ | |
df66af3b | 2868 | template<typename _Tp> |
b96e2ff9 | 2869 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2870 | _If_sv<_Tp, size_type> |
2871 | find_last_of(const _Tp& __svt, size_type __pos = npos) const | |
2872 | noexcept(is_same<_Tp, __sv_type>::value) | |
2873 | { | |
2874 | __sv_type __sv = __svt; | |
2875 | return this->find_last_of(__sv.data(), __pos, __sv.size()); | |
2876 | } | |
ca8f2cb1 VV |
2877 | #endif // C++17 |
2878 | ||
34a2b755 JW |
2879 | /** |
2880 | * @brief Find last position of a character of C substring. | |
2881 | * @param __s C string containing characters to locate. | |
2882 | * @param __pos Index of character to search back from. | |
2883 | * @param __n Number of characters from s to search for. | |
2884 | * @return Index of last occurrence. | |
2885 | * | |
2886 | * Starting from @a __pos, searches backward for one of the | |
2887 | * first @a __n characters of @a __s within this string. If | |
2888 | * found, returns the index where it was found. If not found, | |
2889 | * returns npos. | |
2890 | */ | |
b96e2ff9 | 2891 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 2892 | size_type |
39a03251 JW |
2893 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
2894 | _GLIBCXX_NOEXCEPT; | |
34a2b755 JW |
2895 | |
2896 | /** | |
2897 | * @brief Find last position of a character of C string. | |
2898 | * @param __s C string containing characters to locate. | |
2899 | * @param __pos Index of character to search back from (default end). | |
2900 | * @return Index of last occurrence. | |
2901 | * | |
2902 | * Starting from @a __pos, searches backward for one of the | |
2903 | * characters of @a __s within this string. If found, returns | |
2904 | * the index where it was found. If not found, returns npos. | |
2905 | */ | |
b96e2ff9 | 2906 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2907 | size_type |
2908 | find_last_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 2909 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2910 | { |
2911 | __glibcxx_requires_string(__s); | |
2912 | return this->find_last_of(__s, __pos, traits_type::length(__s)); | |
2913 | } | |
2914 | ||
2915 | /** | |
2916 | * @brief Find last position of a character. | |
2917 | * @param __c Character to locate. | |
2918 | * @param __pos Index of character to search back from (default end). | |
2919 | * @return Index of last occurrence. | |
2920 | * | |
2921 | * Starting from @a __pos, searches backward for @a __c within | |
2922 | * this string. If found, returns the index where it was | |
2923 | * found. If not found, returns npos. | |
2924 | * | |
2925 | * Note: equivalent to rfind(__c, __pos). | |
2926 | */ | |
b96e2ff9 | 2927 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2928 | size_type |
2929 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPT | |
2930 | { return this->rfind(__c, __pos); } | |
2931 | ||
2932 | /** | |
2933 | * @brief Find position of a character not in string. | |
2934 | * @param __str String containing characters to avoid. | |
2935 | * @param __pos Index of character to search from (default 0). | |
2936 | * @return Index of first occurrence. | |
2937 | * | |
2938 | * Starting from @a __pos, searches forward for a character not contained | |
2939 | * in @a __str within this string. If found, returns the index where it | |
2940 | * was found. If not found, returns npos. | |
2941 | */ | |
b96e2ff9 | 2942 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2943 | size_type |
2944 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const | |
39a03251 | 2945 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2946 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
2947 | ||
1a289fa3 | 2948 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
2949 | /** |
2950 | * @brief Find position of a character not in a string_view. | |
df66af3b DK |
2951 | * @param __svt A object convertible to string_view containing |
2952 | * characters to avoid. | |
ca8f2cb1 VV |
2953 | * @param __pos Index of character to search from (default 0). |
2954 | * @return Index of first occurrence. | |
2955 | */ | |
df66af3b DK |
2956 | template<typename _Tp> |
2957 | _If_sv<_Tp, size_type> | |
b96e2ff9 | 2958 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
2959 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const |
2960 | noexcept(is_same<_Tp, __sv_type>::value) | |
2961 | { | |
2962 | __sv_type __sv = __svt; | |
2963 | return this->find_first_not_of(__sv.data(), __pos, __sv.size()); | |
2964 | } | |
ca8f2cb1 VV |
2965 | #endif // C++17 |
2966 | ||
34a2b755 JW |
2967 | /** |
2968 | * @brief Find position of a character not in C substring. | |
2969 | * @param __s C string containing characters to avoid. | |
2970 | * @param __pos Index of character to search from. | |
2971 | * @param __n Number of characters from __s to consider. | |
2972 | * @return Index of first occurrence. | |
2973 | * | |
2974 | * Starting from @a __pos, searches forward for a character not | |
2975 | * contained in the first @a __n characters of @a __s within | |
2976 | * this string. If found, returns the index where it was | |
2977 | * found. If not found, returns npos. | |
2978 | */ | |
b96e2ff9 | 2979 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2980 | size_type |
2981 | find_first_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 2982 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
2983 | |
2984 | /** | |
2985 | * @brief Find position of a character not in C string. | |
2986 | * @param __s C string containing characters to avoid. | |
2987 | * @param __pos Index of character to search from (default 0). | |
2988 | * @return Index of first occurrence. | |
2989 | * | |
2990 | * Starting from @a __pos, searches forward for a character not | |
2991 | * contained in @a __s within this string. If found, returns | |
2992 | * the index where it was found. If not found, returns npos. | |
2993 | */ | |
b96e2ff9 | 2994 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
2995 | size_type |
2996 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const | |
39a03251 | 2997 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
2998 | { |
2999 | __glibcxx_requires_string(__s); | |
3000 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); | |
3001 | } | |
3002 | ||
3003 | /** | |
3004 | * @brief Find position of a different character. | |
3005 | * @param __c Character to avoid. | |
3006 | * @param __pos Index of character to search from (default 0). | |
3007 | * @return Index of first occurrence. | |
3008 | * | |
3009 | * Starting from @a __pos, searches forward for a character | |
3010 | * other than @a __c within this string. If found, returns the | |
3011 | * index where it was found. If not found, returns npos. | |
3012 | */ | |
b96e2ff9 | 3013 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3014 | size_type |
3015 | find_first_not_of(_CharT __c, size_type __pos = 0) const | |
39a03251 | 3016 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3017 | |
3018 | /** | |
3019 | * @brief Find last position of a character not in string. | |
3020 | * @param __str String containing characters to avoid. | |
3021 | * @param __pos Index of character to search back from (default end). | |
3022 | * @return Index of last occurrence. | |
3023 | * | |
3024 | * Starting from @a __pos, searches backward for a character | |
3025 | * not contained in @a __str within this string. If found, | |
3026 | * returns the index where it was found. If not found, returns | |
3027 | * npos. | |
3028 | */ | |
b96e2ff9 | 3029 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3030 | size_type |
3031 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const | |
39a03251 | 3032 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
3033 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
3034 | ||
1a289fa3 | 3035 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
3036 | /** |
3037 | * @brief Find last position of a character not in a string_view. | |
df66af3b DK |
3038 | * @param __svt An object convertible to string_view containing |
3039 | * characters to avoid. | |
ca8f2cb1 VV |
3040 | * @param __pos Index of character to search back from (default end). |
3041 | * @return Index of last occurrence. | |
3042 | */ | |
df66af3b | 3043 | template<typename _Tp> |
b96e2ff9 | 3044 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
3045 | _If_sv<_Tp, size_type> |
3046 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const | |
3047 | noexcept(is_same<_Tp, __sv_type>::value) | |
3048 | { | |
3049 | __sv_type __sv = __svt; | |
3050 | return this->find_last_not_of(__sv.data(), __pos, __sv.size()); | |
3051 | } | |
ca8f2cb1 VV |
3052 | #endif // C++17 |
3053 | ||
34a2b755 JW |
3054 | /** |
3055 | * @brief Find last position of a character not in C substring. | |
3056 | * @param __s C string containing characters to avoid. | |
3057 | * @param __pos Index of character to search back from. | |
3058 | * @param __n Number of characters from s to consider. | |
3059 | * @return Index of last occurrence. | |
3060 | * | |
3061 | * Starting from @a __pos, searches backward for a character not | |
3062 | * contained in the first @a __n characters of @a __s within this string. | |
3063 | * If found, returns the index where it was found. If not found, | |
3064 | * returns npos. | |
3065 | */ | |
b96e2ff9 | 3066 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3067 | size_type |
3068 | find_last_not_of(const _CharT* __s, size_type __pos, | |
39a03251 | 3069 | size_type __n) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3070 | /** |
3071 | * @brief Find last position of a character not in C string. | |
3072 | * @param __s C string containing characters to avoid. | |
3073 | * @param __pos Index of character to search back from (default end). | |
3074 | * @return Index of last occurrence. | |
3075 | * | |
3076 | * Starting from @a __pos, searches backward for a character | |
3077 | * not contained in @a __s within this string. If found, | |
3078 | * returns the index where it was found. If not found, returns | |
3079 | * npos. | |
3080 | */ | |
b96e2ff9 | 3081 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3082 | size_type |
3083 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const | |
39a03251 | 3084 | _GLIBCXX_NOEXCEPT |
34a2b755 JW |
3085 | { |
3086 | __glibcxx_requires_string(__s); | |
3087 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); | |
3088 | } | |
3089 | ||
3090 | /** | |
3091 | * @brief Find last position of a different character. | |
3092 | * @param __c Character to avoid. | |
3093 | * @param __pos Index of character to search back from (default end). | |
3094 | * @return Index of last occurrence. | |
3095 | * | |
3096 | * Starting from @a __pos, searches backward for a character other than | |
3097 | * @a __c within this string. If found, returns the index where it was | |
3098 | * found. If not found, returns npos. | |
3099 | */ | |
b96e2ff9 | 3100 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3101 | size_type |
3102 | find_last_not_of(_CharT __c, size_type __pos = npos) const | |
39a03251 | 3103 | _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3104 | |
3105 | /** | |
3106 | * @brief Get a substring. | |
3107 | * @param __pos Index of first character (default 0). | |
3108 | * @param __n Number of characters in substring (default remainder). | |
3109 | * @return The new string. | |
3110 | * @throw std::out_of_range If __pos > size(). | |
3111 | * | |
3112 | * Construct and return a new string using the @a __n | |
3113 | * characters starting at @a __pos. If the string is too | |
3114 | * short, use the remainder of the characters. If @a __pos is | |
3115 | * beyond the end of the string, out_of_range is thrown. | |
3116 | */ | |
b96e2ff9 | 3117 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3118 | basic_string |
3119 | substr(size_type __pos = 0, size_type __n = npos) const | |
3120 | { return basic_string(*this, | |
3121 | _M_check(__pos, "basic_string::substr"), __n); } | |
3122 | ||
3123 | /** | |
3124 | * @brief Compare to a string. | |
3125 | * @param __str String to compare against. | |
3126 | * @return Integer < 0, 0, or > 0. | |
3127 | * | |
3128 | * Returns an integer < 0 if this string is ordered before @a | |
3129 | * __str, 0 if their values are equivalent, or > 0 if this | |
3130 | * string is ordered after @a __str. Determines the effective | |
3131 | * length rlen of the strings to compare as the smallest of | |
3132 | * size() and str.size(). The function then compares the two | |
3133 | * strings by calling traits::compare(data(), str.data(),rlen). | |
3134 | * If the result of the comparison is nonzero returns it, | |
3135 | * otherwise the shorter one is ordered first. | |
3136 | */ | |
b96e2ff9 | 3137 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3138 | int |
3139 | compare(const basic_string& __str) const | |
3140 | { | |
3141 | const size_type __size = this->size(); | |
3142 | const size_type __osize = __str.size(); | |
3143 | const size_type __len = std::min(__size, __osize); | |
3144 | ||
2d60da10 | 3145 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
34a2b755 JW |
3146 | if (!__r) |
3147 | __r = _S_compare(__size, __osize); | |
3148 | return __r; | |
3149 | } | |
3150 | ||
1a289fa3 | 3151 | #if __cplusplus >= 201703L |
ca8f2cb1 VV |
3152 | /** |
3153 | * @brief Compare to a string_view. | |
df66af3b | 3154 | * @param __svt An object convertible to string_view to compare against. |
ca8f2cb1 VV |
3155 | * @return Integer < 0, 0, or > 0. |
3156 | */ | |
df66af3b | 3157 | template<typename _Tp> |
b96e2ff9 | 3158 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
3159 | _If_sv<_Tp, int> |
3160 | compare(const _Tp& __svt) const | |
3161 | noexcept(is_same<_Tp, __sv_type>::value) | |
3162 | { | |
3163 | __sv_type __sv = __svt; | |
3164 | const size_type __size = this->size(); | |
3165 | const size_type __osize = __sv.size(); | |
3166 | const size_type __len = std::min(__size, __osize); | |
3167 | ||
3168 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); | |
3169 | if (!__r) | |
3170 | __r = _S_compare(__size, __osize); | |
3171 | return __r; | |
3172 | } | |
ca8f2cb1 VV |
3173 | |
3174 | /** | |
3175 | * @brief Compare to a string_view. | |
3176 | * @param __pos A position in the string to start comparing from. | |
3177 | * @param __n The number of characters to compare. | |
df66af3b DK |
3178 | * @param __svt An object convertible to string_view to compare |
3179 | * against. | |
ca8f2cb1 VV |
3180 | * @return Integer < 0, 0, or > 0. |
3181 | */ | |
df66af3b | 3182 | template<typename _Tp> |
b96e2ff9 | 3183 | _GLIBCXX20_CONSTEXPR |
df66af3b DK |
3184 | _If_sv<_Tp, int> |
3185 | compare(size_type __pos, size_type __n, const _Tp& __svt) const | |
3186 | noexcept(is_same<_Tp, __sv_type>::value) | |
3187 | { | |
3188 | __sv_type __sv = __svt; | |
3189 | return __sv_type(*this).substr(__pos, __n).compare(__sv); | |
3190 | } | |
ca8f2cb1 VV |
3191 | |
3192 | /** | |
3193 | * @brief Compare to a string_view. | |
3194 | * @param __pos1 A position in the string to start comparing from. | |
3195 | * @param __n1 The number of characters to compare. | |
df66af3b DK |
3196 | * @param __svt An object convertible to string_view to compare |
3197 | * against. | |
ca8f2cb1 VV |
3198 | * @param __pos2 A position in the string_view to start comparing from. |
3199 | * @param __n2 The number of characters to compare. | |
3200 | * @return Integer < 0, 0, or > 0. | |
3201 | */ | |
df66af3b | 3202 | template<typename _Tp> |
b96e2ff9 | 3203 | _GLIBCXX20_CONSTEXPR |
657213f7 JW |
3204 | _If_sv<_Tp, int> |
3205 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, | |
3206 | size_type __pos2, size_type __n2 = npos) const | |
df66af3b | 3207 | noexcept(is_same<_Tp, __sv_type>::value) |
657213f7 JW |
3208 | { |
3209 | __sv_type __sv = __svt; | |
3210 | return __sv_type(*this) | |
3211 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); | |
3212 | } | |
ca8f2cb1 VV |
3213 | #endif // C++17 |
3214 | ||
34a2b755 JW |
3215 | /** |
3216 | * @brief Compare substring to a string. | |
3217 | * @param __pos Index of first character of substring. | |
3218 | * @param __n Number of characters in substring. | |
3219 | * @param __str String to compare against. | |
3220 | * @return Integer < 0, 0, or > 0. | |
3221 | * | |
3222 | * Form the substring of this string from the @a __n characters | |
3223 | * starting at @a __pos. Returns an integer < 0 if the | |
3224 | * substring is ordered before @a __str, 0 if their values are | |
3225 | * equivalent, or > 0 if the substring is ordered after @a | |
3226 | * __str. Determines the effective length rlen of the strings | |
3227 | * to compare as the smallest of the length of the substring | |
3228 | * and @a __str.size(). The function then compares the two | |
3229 | * strings by calling | |
3230 | * traits::compare(substring.data(),str.data(),rlen). If the | |
3231 | * result of the comparison is nonzero returns it, otherwise | |
3232 | * the shorter one is ordered first. | |
3233 | */ | |
b96e2ff9 | 3234 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3235 | int |
3236 | compare(size_type __pos, size_type __n, const basic_string& __str) const; | |
3237 | ||
3238 | /** | |
3239 | * @brief Compare substring to a substring. | |
3240 | * @param __pos1 Index of first character of substring. | |
3241 | * @param __n1 Number of characters in substring. | |
3242 | * @param __str String to compare against. | |
3243 | * @param __pos2 Index of first character of substring of str. | |
3244 | * @param __n2 Number of characters in substring of str. | |
3245 | * @return Integer < 0, 0, or > 0. | |
3246 | * | |
3247 | * Form the substring of this string from the @a __n1 | |
3248 | * characters starting at @a __pos1. Form the substring of @a | |
3249 | * __str from the @a __n2 characters starting at @a __pos2. | |
3250 | * Returns an integer < 0 if this substring is ordered before | |
3251 | * the substring of @a __str, 0 if their values are equivalent, | |
3252 | * or > 0 if this substring is ordered after the substring of | |
3253 | * @a __str. Determines the effective length rlen of the | |
3254 | * strings to compare as the smallest of the lengths of the | |
3255 | * substrings. The function then compares the two strings by | |
3256 | * calling | |
3257 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). | |
3258 | * If the result of the comparison is nonzero returns it, | |
3259 | * otherwise the shorter one is ordered first. | |
3260 | */ | |
b96e2ff9 | 3261 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3262 | int |
3263 | compare(size_type __pos1, size_type __n1, const basic_string& __str, | |
852ee53c | 3264 | size_type __pos2, size_type __n2 = npos) const; |
34a2b755 JW |
3265 | |
3266 | /** | |
3267 | * @brief Compare to a C string. | |
3268 | * @param __s C string to compare against. | |
3269 | * @return Integer < 0, 0, or > 0. | |
3270 | * | |
3271 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if | |
3272 | * their values are equivalent, or > 0 if this string is ordered after | |
3273 | * @a __s. Determines the effective length rlen of the strings to | |
3274 | * compare as the smallest of size() and the length of a string | |
3275 | * constructed from @a __s. The function then compares the two strings | |
3276 | * by calling traits::compare(data(),s,rlen). If the result of the | |
3277 | * comparison is nonzero returns it, otherwise the shorter one is | |
3278 | * ordered first. | |
3279 | */ | |
b96e2ff9 | 3280 | _GLIBCXX20_CONSTEXPR |
34a2b755 | 3281 | int |
39a03251 | 3282 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT; |
34a2b755 JW |
3283 | |
3284 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3285 | // 5 String::compare specification questionable | |
3286 | /** | |
3287 | * @brief Compare substring to a C string. | |
3288 | * @param __pos Index of first character of substring. | |
3289 | * @param __n1 Number of characters in substring. | |
3290 | * @param __s C string to compare against. | |
3291 | * @return Integer < 0, 0, or > 0. | |
3292 | * | |
3293 | * Form the substring of this string from the @a __n1 | |
3294 | * characters starting at @a pos. Returns an integer < 0 if | |
3295 | * the substring is ordered before @a __s, 0 if their values | |
3296 | * are equivalent, or > 0 if the substring is ordered after @a | |
3297 | * __s. Determines the effective length rlen of the strings to | |
3298 | * compare as the smallest of the length of the substring and | |
3299 | * the length of a string constructed from @a __s. The | |
3300 | * function then compares the two string by calling | |
3301 | * traits::compare(substring.data(),__s,rlen). If the result of | |
3302 | * the comparison is nonzero returns it, otherwise the shorter | |
3303 | * one is ordered first. | |
3304 | */ | |
b96e2ff9 | 3305 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3306 | int |
3307 | compare(size_type __pos, size_type __n1, const _CharT* __s) const; | |
3308 | ||
3309 | /** | |
3310 | * @brief Compare substring against a character %array. | |
3311 | * @param __pos Index of first character of substring. | |
3312 | * @param __n1 Number of characters in substring. | |
3313 | * @param __s character %array to compare against. | |
3314 | * @param __n2 Number of characters of s. | |
3315 | * @return Integer < 0, 0, or > 0. | |
3316 | * | |
3317 | * Form the substring of this string from the @a __n1 | |
3318 | * characters starting at @a __pos. Form a string from the | |
3319 | * first @a __n2 characters of @a __s. Returns an integer < 0 | |
3320 | * if this substring is ordered before the string from @a __s, | |
3321 | * 0 if their values are equivalent, or > 0 if this substring | |
3322 | * is ordered after the string from @a __s. Determines the | |
3323 | * effective length rlen of the strings to compare as the | |
3324 | * smallest of the length of the substring and @a __n2. The | |
3325 | * function then compares the two strings by calling | |
3326 | * traits::compare(substring.data(),s,rlen). If the result of | |
3327 | * the comparison is nonzero returns it, otherwise the shorter | |
3328 | * one is ordered first. | |
3329 | * | |
3330 | * NB: s must have at least n2 characters, '\\0' has | |
3331 | * no special meaning. | |
3332 | */ | |
b96e2ff9 | 3333 | _GLIBCXX20_CONSTEXPR |
34a2b755 JW |
3334 | int |
3335 | compare(size_type __pos, size_type __n1, const _CharT* __s, | |
3336 | size_type __n2) const; | |
93ef155b | 3337 | |
b96e2ff9 ML |
3338 | #if __cplusplus >= 202002L |
3339 | constexpr bool | |
5bd624fb ESR |
3340 | starts_with(basic_string_view<_CharT, _Traits> __x) const noexcept |
3341 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3342 | ||
b96e2ff9 | 3343 | constexpr bool |
5bd624fb ESR |
3344 | starts_with(_CharT __x) const noexcept |
3345 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3346 | ||
b96e2ff9 | 3347 | constexpr bool |
5bd624fb ESR |
3348 | starts_with(const _CharT* __x) const noexcept |
3349 | { return __sv_type(this->data(), this->size()).starts_with(__x); } | |
3350 | ||
b96e2ff9 | 3351 | constexpr bool |
5bd624fb ESR |
3352 | ends_with(basic_string_view<_CharT, _Traits> __x) const noexcept |
3353 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3354 | ||
b96e2ff9 | 3355 | constexpr bool |
5bd624fb ESR |
3356 | ends_with(_CharT __x) const noexcept |
3357 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3358 | ||
b96e2ff9 | 3359 | constexpr bool |
5bd624fb ESR |
3360 | ends_with(const _CharT* __x) const noexcept |
3361 | { return __sv_type(this->data(), this->size()).ends_with(__x); } | |
3362 | #endif // C++20 | |
3363 | ||
f004d6d9 | 3364 | #if __cplusplus > 202002L |
b96e2ff9 | 3365 | constexpr bool |
f004d6d9 PF |
3366 | contains(basic_string_view<_CharT, _Traits> __x) const noexcept |
3367 | { return __sv_type(this->data(), this->size()).contains(__x); } | |
3368 | ||
b96e2ff9 | 3369 | constexpr bool |
f004d6d9 PF |
3370 | contains(_CharT __x) const noexcept |
3371 | { return __sv_type(this->data(), this->size()).contains(__x); } | |
3372 | ||
b96e2ff9 | 3373 | constexpr bool |
f004d6d9 PF |
3374 | contains(const _CharT* __x) const noexcept |
3375 | { return __sv_type(this->data(), this->size()).contains(__x); } | |
3376 | #endif // C++23 | |
3377 | ||
93ef155b JW |
3378 | // Allow basic_stringbuf::__xfer_bufptrs to call _M_length: |
3379 | template<typename, typename, typename> friend class basic_stringbuf; | |
3380 | }; | |
34a2b755 | 3381 | _GLIBCXX_END_NAMESPACE_CXX11 |
7b527614 JW |
3382 | _GLIBCXX_END_NAMESPACE_VERSION |
3383 | } // namespace std | |
3384 | #endif // _GLIBCXX_USE_CXX11_ABI | |
ec61e852 | 3385 | |
7b527614 JW |
3386 | namespace std _GLIBCXX_VISIBILITY(default) |
3387 | { | |
3388 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
725dc051 | 3389 | |
6d82c562 JW |
3390 | #if __cpp_deduction_guides >= 201606 |
3391 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 | |
3392 | template<typename _InputIterator, typename _CharT | |
3393 | = typename iterator_traits<_InputIterator>::value_type, | |
3394 | typename _Allocator = allocator<_CharT>, | |
3395 | typename = _RequireInputIter<_InputIterator>, | |
3396 | typename = _RequireAllocator<_Allocator>> | |
3397 | basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator()) | |
3398 | -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; | |
53e926c8 JW |
3399 | |
3400 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3401 | // 3075. basic_string needs deduction guides from basic_string_view | |
3402 | template<typename _CharT, typename _Traits, | |
3403 | typename _Allocator = allocator<_CharT>, | |
3404 | typename = _RequireAllocator<_Allocator>> | |
3405 | basic_string(basic_string_view<_CharT, _Traits>, const _Allocator& = _Allocator()) | |
3406 | -> basic_string<_CharT, _Traits, _Allocator>; | |
3407 | ||
3408 | template<typename _CharT, typename _Traits, | |
3409 | typename _Allocator = allocator<_CharT>, | |
3410 | typename = _RequireAllocator<_Allocator>> | |
3411 | basic_string(basic_string_view<_CharT, _Traits>, | |
3412 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, | |
3413 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, | |
3414 | const _Allocator& = _Allocator()) | |
3415 | -> basic_string<_CharT, _Traits, _Allocator>; | |
6d82c562 JW |
3416 | _GLIBCXX_END_NAMESPACE_CXX11 |
3417 | #endif | |
3418 | ||
725dc051 | 3419 | // operator+ |
284f19bf JQ |
3420 | /** |
3421 | * @brief Concatenate two strings. | |
93c66bc6 BK |
3422 | * @param __lhs First string. |
3423 | * @param __rhs Last string. | |
3424 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 3425 | */ |
41b8e86c | 3426 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3427 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3428 | basic_string<_CharT, _Traits, _Alloc> |
3429 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3430 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3431 | { | |
3432 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
3433 | __str.append(__rhs); | |
3434 | return __str; | |
3435 | } | |
3436 | ||
284f19bf JQ |
3437 | /** |
3438 | * @brief Concatenate C string and string. | |
93c66bc6 BK |
3439 | * @param __lhs First string. |
3440 | * @param __rhs Last string. | |
3441 | * @return New string with value of @a __lhs followed by @a __rhs. | |
ed6814f7 | 3442 | */ |
725dc051 | 3443 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3444 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3445 | basic_string<_CharT,_Traits,_Alloc> |
3446 | operator+(const _CharT* __lhs, | |
3447 | const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
3448 | ||
284f19bf JQ |
3449 | /** |
3450 | * @brief Concatenate character and string. | |
93c66bc6 BK |
3451 | * @param __lhs First string. |
3452 | * @param __rhs Last string. | |
3453 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 3454 | */ |
725dc051 | 3455 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3456 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3457 | basic_string<_CharT,_Traits,_Alloc> |
3458 | operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs); | |
3459 | ||
284f19bf JQ |
3460 | /** |
3461 | * @brief Concatenate string and C string. | |
93c66bc6 BK |
3462 | * @param __lhs First string. |
3463 | * @param __rhs Last string. | |
3464 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 3465 | */ |
725dc051 | 3466 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3467 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3468 | inline basic_string<_CharT, _Traits, _Alloc> |
3469 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
34a2b755 | 3470 | const _CharT* __rhs) |
725dc051 BK |
3471 | { |
3472 | basic_string<_CharT, _Traits, _Alloc> __str(__lhs); | |
3473 | __str.append(__rhs); | |
3474 | return __str; | |
3475 | } | |
3476 | ||
284f19bf JQ |
3477 | /** |
3478 | * @brief Concatenate string and character. | |
93c66bc6 BK |
3479 | * @param __lhs First string. |
3480 | * @param __rhs Last string. | |
3481 | * @return New string with @a __lhs followed by @a __rhs. | |
ed6814f7 | 3482 | */ |
725dc051 | 3483 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3484 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3485 | inline basic_string<_CharT, _Traits, _Alloc> |
3486 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs) | |
3487 | { | |
ed6814f7 | 3488 | typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
725dc051 BK |
3489 | typedef typename __string_type::size_type __size_type; |
3490 | __string_type __str(__lhs); | |
3491 | __str.append(__size_type(1), __rhs); | |
3492 | return __str; | |
3493 | } | |
3494 | ||
734f5023 | 3495 | #if __cplusplus >= 201103L |
ce99f498 | 3496 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3497 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3498 | inline basic_string<_CharT, _Traits, _Alloc> |
3499 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3500 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3501 | { return std::move(__lhs.append(__rhs)); } | |
3502 | ||
3503 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3504 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3505 | inline basic_string<_CharT, _Traits, _Alloc> |
3506 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3507 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
3508 | { return std::move(__rhs.insert(0, __lhs)); } | |
3509 | ||
3510 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3511 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3512 | inline basic_string<_CharT, _Traits, _Alloc> |
3513 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3514 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
37a68925 | 3515 | { |
f4e678ef NDR |
3516 | #if _GLIBCXX_USE_CXX11_ABI |
3517 | using _Alloc_traits = allocator_traits<_Alloc>; | |
3518 | bool __use_rhs = false; | |
3519 | if _GLIBCXX17_CONSTEXPR (typename _Alloc_traits::is_always_equal{}) | |
3520 | __use_rhs = true; | |
3521 | else if (__lhs.get_allocator() == __rhs.get_allocator()) | |
3522 | __use_rhs = true; | |
3523 | if (__use_rhs) | |
3524 | #endif | |
3525 | { | |
3526 | const auto __size = __lhs.size() + __rhs.size(); | |
3527 | if (__size > __lhs.capacity() && __size <= __rhs.capacity()) | |
3528 | return std::move(__rhs.insert(0, __lhs)); | |
3529 | } | |
3530 | return std::move(__lhs.append(__rhs)); | |
37a68925 | 3531 | } |
ce99f498 PC |
3532 | |
3533 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3534 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3535 | inline basic_string<_CharT, _Traits, _Alloc> |
3536 | operator+(const _CharT* __lhs, | |
3537 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
3538 | { return std::move(__rhs.insert(0, __lhs)); } | |
3539 | ||
3540 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3541 | _GLIBCXX20_CONSTEXPR |
ce99f498 | 3542 | inline basic_string<_CharT, _Traits, _Alloc> |
37a68925 PC |
3543 | operator+(_CharT __lhs, |
3544 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) | |
ce99f498 PC |
3545 | { return std::move(__rhs.insert(0, 1, __lhs)); } |
3546 | ||
3547 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3548 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3549 | inline basic_string<_CharT, _Traits, _Alloc> |
3550 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3551 | const _CharT* __rhs) | |
3552 | { return std::move(__lhs.append(__rhs)); } | |
3553 | ||
3554 | template<typename _CharT, typename _Traits, typename _Alloc> | |
b96e2ff9 | 3555 | _GLIBCXX20_CONSTEXPR |
ce99f498 PC |
3556 | inline basic_string<_CharT, _Traits, _Alloc> |
3557 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, | |
3558 | _CharT __rhs) | |
3559 | { return std::move(__lhs.append(1, __rhs)); } | |
3560 | #endif | |
3561 | ||
725dc051 | 3562 | // operator == |
284f19bf JQ |
3563 | /** |
3564 | * @brief Test equivalence of two strings. | |
93c66bc6 BK |
3565 | * @param __lhs First string. |
3566 | * @param __rhs Second string. | |
3567 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 3568 | */ |
725dc051 | 3569 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3570 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3571 | inline bool |
3572 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3573 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3574 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3575 | { return __lhs.compare(__rhs) == 0; } |
3576 | ||
bd12160a | 3577 | template<typename _CharT> |
b96e2ff9 | 3578 | _GLIBCXX20_CONSTEXPR |
bd12160a PC |
3579 | inline |
3580 | typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, bool>::__type | |
3581 | operator==(const basic_string<_CharT>& __lhs, | |
5caff414 | 3582 | const basic_string<_CharT>& __rhs) _GLIBCXX_NOEXCEPT |
bd12160a PC |
3583 | { return (__lhs.size() == __rhs.size() |
3584 | && !std::char_traits<_CharT>::compare(__lhs.data(), __rhs.data(), | |
3585 | __lhs.size())); } | |
3586 | ||
284f19bf JQ |
3587 | /** |
3588 | * @brief Test equivalence of string and C string. | |
93c66bc6 BK |
3589 | * @param __lhs String. |
3590 | * @param __rhs C string. | |
3591 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. | |
ed6814f7 | 3592 | */ |
725dc051 | 3593 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3594 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3595 | inline bool |
3596 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3597 | const _CharT* __rhs) | |
3598 | { return __lhs.compare(__rhs) == 0; } | |
3599 | ||
875d6cb3 JW |
3600 | #if __cpp_lib_three_way_comparison |
3601 | /** | |
3602 | * @brief Three-way comparison of a string and a C string. | |
3603 | * @param __lhs A string. | |
3604 | * @param __rhs A null-terminated string. | |
3605 | * @return A value indicating whether `__lhs` is less than, equal to, | |
3606 | * greater than, or incomparable with `__rhs`. | |
3607 | */ | |
3608 | template<typename _CharT, typename _Traits, typename _Alloc> | |
73e4d9f1 | 3609 | constexpr auto |
875d6cb3 JW |
3610 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
3611 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) noexcept | |
3612 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) | |
3613 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } | |
3614 | ||
3615 | /** | |
3616 | * @brief Three-way comparison of a string and a C string. | |
3617 | * @param __lhs A string. | |
3618 | * @param __rhs A null-terminated string. | |
3619 | * @return A value indicating whether `__lhs` is less than, equal to, | |
3620 | * greater than, or incomparable with `__rhs`. | |
3621 | */ | |
3622 | template<typename _CharT, typename _Traits, typename _Alloc> | |
73e4d9f1 | 3623 | constexpr auto |
875d6cb3 JW |
3624 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
3625 | const _CharT* __rhs) noexcept | |
3626 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) | |
3627 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } | |
3628 | #else | |
3629 | /** | |
3630 | * @brief Test equivalence of C string and string. | |
3631 | * @param __lhs C string. | |
3632 | * @param __rhs String. | |
3633 | * @return True if @a __rhs.compare(@a __lhs) == 0. False otherwise. | |
3634 | */ | |
3635 | template<typename _CharT, typename _Traits, typename _Alloc> | |
3636 | inline bool | |
3637 | operator==(const _CharT* __lhs, | |
3638 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3639 | { return __rhs.compare(__lhs) == 0; } | |
3640 | ||
725dc051 | 3641 | // operator != |
284f19bf JQ |
3642 | /** |
3643 | * @brief Test difference of two strings. | |
93c66bc6 BK |
3644 | * @param __lhs First string. |
3645 | * @param __rhs Second string. | |
3646 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 3647 | */ |
725dc051 BK |
3648 | template<typename _CharT, typename _Traits, typename _Alloc> |
3649 | inline bool | |
3650 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3651 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3652 | _GLIBCXX_NOEXCEPT |
bd12160a | 3653 | { return !(__lhs == __rhs); } |
725dc051 | 3654 | |
284f19bf JQ |
3655 | /** |
3656 | * @brief Test difference of C string and string. | |
93c66bc6 BK |
3657 | * @param __lhs C string. |
3658 | * @param __rhs String. | |
3659 | * @return True if @a __rhs.compare(@a __lhs) != 0. False otherwise. | |
ed6814f7 | 3660 | */ |
725dc051 BK |
3661 | template<typename _CharT, typename _Traits, typename _Alloc> |
3662 | inline bool | |
3663 | operator!=(const _CharT* __lhs, | |
3664 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
bd12160a | 3665 | { return !(__lhs == __rhs); } |
725dc051 | 3666 | |
284f19bf JQ |
3667 | /** |
3668 | * @brief Test difference of string and C string. | |
93c66bc6 BK |
3669 | * @param __lhs String. |
3670 | * @param __rhs C string. | |
3671 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. | |
ed6814f7 | 3672 | */ |
725dc051 BK |
3673 | template<typename _CharT, typename _Traits, typename _Alloc> |
3674 | inline bool | |
3675 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3676 | const _CharT* __rhs) | |
bd12160a | 3677 | { return !(__lhs == __rhs); } |
725dc051 BK |
3678 | |
3679 | // operator < | |
284f19bf JQ |
3680 | /** |
3681 | * @brief Test if string precedes string. | |
93c66bc6 BK |
3682 | * @param __lhs First string. |
3683 | * @param __rhs Second string. | |
3684 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 3685 | */ |
725dc051 BK |
3686 | template<typename _CharT, typename _Traits, typename _Alloc> |
3687 | inline bool | |
3688 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3689 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3690 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3691 | { return __lhs.compare(__rhs) < 0; } |
3692 | ||
284f19bf JQ |
3693 | /** |
3694 | * @brief Test if string precedes C string. | |
93c66bc6 BK |
3695 | * @param __lhs String. |
3696 | * @param __rhs C string. | |
3697 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 3698 | */ |
725dc051 BK |
3699 | template<typename _CharT, typename _Traits, typename _Alloc> |
3700 | inline bool | |
3701 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3702 | const _CharT* __rhs) | |
3703 | { return __lhs.compare(__rhs) < 0; } | |
3704 | ||
284f19bf JQ |
3705 | /** |
3706 | * @brief Test if C string precedes string. | |
93c66bc6 BK |
3707 | * @param __lhs C string. |
3708 | * @param __rhs String. | |
3709 | * @return True if @a __lhs precedes @a __rhs. False otherwise. | |
ed6814f7 | 3710 | */ |
725dc051 BK |
3711 | template<typename _CharT, typename _Traits, typename _Alloc> |
3712 | inline bool | |
3713 | operator<(const _CharT* __lhs, | |
3714 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3715 | { return __rhs.compare(__lhs) > 0; } | |
3716 | ||
3717 | // operator > | |
284f19bf JQ |
3718 | /** |
3719 | * @brief Test if string follows string. | |
93c66bc6 BK |
3720 | * @param __lhs First string. |
3721 | * @param __rhs Second string. | |
3722 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 3723 | */ |
725dc051 BK |
3724 | template<typename _CharT, typename _Traits, typename _Alloc> |
3725 | inline bool | |
3726 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3727 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3728 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3729 | { return __lhs.compare(__rhs) > 0; } |
3730 | ||
284f19bf JQ |
3731 | /** |
3732 | * @brief Test if string follows C string. | |
93c66bc6 BK |
3733 | * @param __lhs String. |
3734 | * @param __rhs C string. | |
3735 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 3736 | */ |
725dc051 BK |
3737 | template<typename _CharT, typename _Traits, typename _Alloc> |
3738 | inline bool | |
3739 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3740 | const _CharT* __rhs) | |
3741 | { return __lhs.compare(__rhs) > 0; } | |
3742 | ||
284f19bf JQ |
3743 | /** |
3744 | * @brief Test if C string follows string. | |
93c66bc6 BK |
3745 | * @param __lhs C string. |
3746 | * @param __rhs String. | |
3747 | * @return True if @a __lhs follows @a __rhs. False otherwise. | |
ed6814f7 | 3748 | */ |
725dc051 BK |
3749 | template<typename _CharT, typename _Traits, typename _Alloc> |
3750 | inline bool | |
3751 | operator>(const _CharT* __lhs, | |
3752 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3753 | { return __rhs.compare(__lhs) < 0; } | |
3754 | ||
3755 | // operator <= | |
284f19bf JQ |
3756 | /** |
3757 | * @brief Test if string doesn't follow string. | |
93c66bc6 BK |
3758 | * @param __lhs First string. |
3759 | * @param __rhs Second string. | |
3760 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 3761 | */ |
725dc051 BK |
3762 | template<typename _CharT, typename _Traits, typename _Alloc> |
3763 | inline bool | |
3764 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3765 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3766 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3767 | { return __lhs.compare(__rhs) <= 0; } |
3768 | ||
284f19bf JQ |
3769 | /** |
3770 | * @brief Test if string doesn't follow C string. | |
93c66bc6 BK |
3771 | * @param __lhs String. |
3772 | * @param __rhs C string. | |
3773 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 3774 | */ |
725dc051 BK |
3775 | template<typename _CharT, typename _Traits, typename _Alloc> |
3776 | inline bool | |
3777 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3778 | const _CharT* __rhs) | |
3779 | { return __lhs.compare(__rhs) <= 0; } | |
3780 | ||
284f19bf JQ |
3781 | /** |
3782 | * @brief Test if C string doesn't follow string. | |
93c66bc6 BK |
3783 | * @param __lhs C string. |
3784 | * @param __rhs String. | |
3785 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. | |
ed6814f7 | 3786 | */ |
725dc051 BK |
3787 | template<typename _CharT, typename _Traits, typename _Alloc> |
3788 | inline bool | |
3789 | operator<=(const _CharT* __lhs, | |
3790 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
e9fb72e8 | 3791 | { return __rhs.compare(__lhs) >= 0; } |
725dc051 BK |
3792 | |
3793 | // operator >= | |
284f19bf JQ |
3794 | /** |
3795 | * @brief Test if string doesn't precede string. | |
93c66bc6 BK |
3796 | * @param __lhs First string. |
3797 | * @param __rhs Second string. | |
3798 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 3799 | */ |
725dc051 BK |
3800 | template<typename _CharT, typename _Traits, typename _Alloc> |
3801 | inline bool | |
3802 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3803 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3804 | _GLIBCXX_NOEXCEPT |
725dc051 BK |
3805 | { return __lhs.compare(__rhs) >= 0; } |
3806 | ||
284f19bf JQ |
3807 | /** |
3808 | * @brief Test if string doesn't precede C string. | |
93c66bc6 BK |
3809 | * @param __lhs String. |
3810 | * @param __rhs C string. | |
3811 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 3812 | */ |
725dc051 BK |
3813 | template<typename _CharT, typename _Traits, typename _Alloc> |
3814 | inline bool | |
3815 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3816 | const _CharT* __rhs) | |
3817 | { return __lhs.compare(__rhs) >= 0; } | |
3818 | ||
284f19bf JQ |
3819 | /** |
3820 | * @brief Test if C string doesn't precede string. | |
93c66bc6 BK |
3821 | * @param __lhs C string. |
3822 | * @param __rhs String. | |
3823 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. | |
ed6814f7 | 3824 | */ |
725dc051 BK |
3825 | template<typename _CharT, typename _Traits, typename _Alloc> |
3826 | inline bool | |
3827 | operator>=(const _CharT* __lhs, | |
3828 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
3829 | { return __rhs.compare(__lhs) <= 0; } | |
875d6cb3 | 3830 | #endif // three-way comparison |
725dc051 | 3831 | |
284f19bf JQ |
3832 | /** |
3833 | * @brief Swap contents of two strings. | |
93c66bc6 BK |
3834 | * @param __lhs First string. |
3835 | * @param __rhs Second string. | |
284f19bf | 3836 | * |
93c66bc6 | 3837 | * Exchanges the contents of @a __lhs and @a __rhs in constant time. |
284f19bf | 3838 | */ |
725dc051 | 3839 | template<typename _CharT, typename _Traits, typename _Alloc> |
b96e2ff9 | 3840 | _GLIBCXX20_CONSTEXPR |
725dc051 BK |
3841 | inline void |
3842 | swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, | |
3843 | basic_string<_CharT, _Traits, _Alloc>& __rhs) | |
5caff414 | 3844 | _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs))) |
725dc051 BK |
3845 | { __lhs.swap(__rhs); } |
3846 | ||
34a2b755 | 3847 | |
284f19bf JQ |
3848 | /** |
3849 | * @brief Read stream into a string. | |
93c66bc6 BK |
3850 | * @param __is Input stream. |
3851 | * @param __str Buffer to store into. | |
284f19bf JQ |
3852 | * @return Reference to the input stream. |
3853 | * | |
93c66bc6 BK |
3854 | * Stores characters from @a __is into @a __str until whitespace is |
3855 | * found, the end of the stream is encountered, or str.max_size() | |
3856 | * is reached. If is.width() is non-zero, that is the limit on the | |
3857 | * number of characters stored into @a __str. Any previous | |
3858 | * contents of @a __str are erased. | |
284f19bf | 3859 | */ |
725dc051 BK |
3860 | template<typename _CharT, typename _Traits, typename _Alloc> |
3861 | basic_istream<_CharT, _Traits>& | |
3862 | operator>>(basic_istream<_CharT, _Traits>& __is, | |
3863 | basic_string<_CharT, _Traits, _Alloc>& __str); | |
3864 | ||
ceed88b1 PC |
3865 | template<> |
3866 | basic_istream<char>& | |
3867 | operator>>(basic_istream<char>& __is, basic_string<char>& __str); | |
3868 | ||
284f19bf JQ |
3869 | /** |
3870 | * @brief Write string to a stream. | |
93c66bc6 BK |
3871 | * @param __os Output stream. |
3872 | * @param __str String to write out. | |
284f19bf JQ |
3873 | * @return Reference to the output stream. |
3874 | * | |
93c66bc6 | 3875 | * Output characters of @a __str into os following the same rules as for |
284f19bf JQ |
3876 | * writing a C string. |
3877 | */ | |
725dc051 | 3878 | template<typename _CharT, typename _Traits, typename _Alloc> |
70c99f6c | 3879 | inline basic_ostream<_CharT, _Traits>& |
725dc051 | 3880 | operator<<(basic_ostream<_CharT, _Traits>& __os, |
ec2061a9 PC |
3881 | const basic_string<_CharT, _Traits, _Alloc>& __str) |
3882 | { | |
3883 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
3884 | // 586. string inserter not a formatted function | |
11202768 | 3885 | return __ostream_insert(__os, __str.data(), __str.size()); |
ec2061a9 | 3886 | } |
725dc051 | 3887 | |
284f19bf JQ |
3888 | /** |
3889 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
3890 | * @param __is Input stream. |
3891 | * @param __str Buffer to store into. | |
3892 | * @param __delim Character marking end of line. | |
284f19bf JQ |
3893 | * @return Reference to the input stream. |
3894 | * | |
93c66bc6 BK |
3895 | * Stores characters from @a __is into @a __str until @a __delim is |
3896 | * found, the end of the stream is encountered, or str.max_size() | |
3b2453a9 JW |
3897 | * is reached. Any previous contents of @a __str are erased. If |
3898 | * @a __delim is encountered, it is extracted but not stored into | |
3899 | * @a __str. | |
284f19bf | 3900 | */ |
725dc051 | 3901 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 3902 | basic_istream<_CharT, _Traits>& |
725dc051 BK |
3903 | getline(basic_istream<_CharT, _Traits>& __is, |
3904 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim); | |
3905 | ||
284f19bf JQ |
3906 | /** |
3907 | * @brief Read a line from stream into a string. | |
93c66bc6 BK |
3908 | * @param __is Input stream. |
3909 | * @param __str Buffer to store into. | |
284f19bf JQ |
3910 | * @return Reference to the input stream. |
3911 | * | |
93c66bc6 | 3912 | * Stores characters from is into @a __str until '\n' is |
2a60a9f6 | 3913 | * found, the end of the stream is encountered, or str.max_size() |
3b2453a9 JW |
3914 | * is reached. Any previous contents of @a __str are erased. If |
3915 | * end of line is encountered, it is extracted but not stored into | |
3916 | * @a __str. | |
284f19bf | 3917 | */ |
725dc051 | 3918 | template<typename _CharT, typename _Traits, typename _Alloc> |
e9fb72e8 | 3919 | inline basic_istream<_CharT, _Traits>& |
725dc051 | 3920 | getline(basic_istream<_CharT, _Traits>& __is, |
70c99f6c | 3921 | basic_string<_CharT, _Traits, _Alloc>& __str) |
19173661 JW |
3922 | { return std::getline(__is, __str, __is.widen('\n')); } |
3923 | ||
3924 | #if __cplusplus >= 201103L | |
3925 | /// Read a line from an rvalue stream into a string. | |
3926 | template<typename _CharT, typename _Traits, typename _Alloc> | |
caff45a6 | 3927 | inline basic_istream<_CharT, _Traits>& |
19173661 JW |
3928 | getline(basic_istream<_CharT, _Traits>&& __is, |
3929 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim) | |
3930 | { return std::getline(__is, __str, __delim); } | |
3931 | ||
3932 | /// Read a line from an rvalue stream into a string. | |
3933 | template<typename _CharT, typename _Traits, typename _Alloc> | |
3934 | inline basic_istream<_CharT, _Traits>& | |
3935 | getline(basic_istream<_CharT, _Traits>&& __is, | |
3936 | basic_string<_CharT, _Traits, _Alloc>& __str) | |
3937 | { return std::getline(__is, __str); } | |
3938 | #endif | |
70c99f6c | 3939 | |
e9fb72e8 PC |
3940 | template<> |
3941 | basic_istream<char>& | |
3942 | getline(basic_istream<char>& __in, basic_string<char>& __str, | |
3943 | char __delim); | |
3944 | ||
3945 | #ifdef _GLIBCXX_USE_WCHAR_T | |
3946 | template<> | |
3947 | basic_istream<wchar_t>& | |
3948 | getline(basic_istream<wchar_t>& __in, basic_string<wchar_t>& __str, | |
3949 | wchar_t __delim); | |
3950 | #endif | |
3cbc7af0 | 3951 | |
12ffa228 BK |
3952 | _GLIBCXX_END_NAMESPACE_VERSION |
3953 | } // namespace | |
7364f286 | 3954 | |
23c64853 | 3955 | #if __cplusplus >= 201103L |
7364f286 | 3956 | |
a5a6b586 | 3957 | #include <ext/string_conversions.h> |
cd0b94e6 | 3958 | #include <bits/charconv.h> |
7364f286 | 3959 | |
12ffa228 BK |
3960 | namespace std _GLIBCXX_VISIBILITY(default) |
3961 | { | |
3962 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
34a2b755 | 3963 | _GLIBCXX_BEGIN_NAMESPACE_CXX11 |
7364f286 | 3964 | |
23c64853 | 3965 | #if _GLIBCXX_USE_C99_STDLIB |
a5a6b586 PC |
3966 | // 21.4 Numeric Conversions [string.conversions]. |
3967 | inline int | |
3968 | stoi(const string& __str, size_t* __idx = 0, int __base = 10) | |
3969 | { return __gnu_cxx::__stoa<long, int>(&std::strtol, "stoi", __str.c_str(), | |
3970 | __idx, __base); } | |
3971 | ||
3972 | inline long | |
3973 | stol(const string& __str, size_t* __idx = 0, int __base = 10) | |
3974 | { return __gnu_cxx::__stoa(&std::strtol, "stol", __str.c_str(), | |
3975 | __idx, __base); } | |
3976 | ||
3977 | inline unsigned long | |
3978 | stoul(const string& __str, size_t* __idx = 0, int __base = 10) | |
3979 | { return __gnu_cxx::__stoa(&std::strtoul, "stoul", __str.c_str(), | |
3980 | __idx, __base); } | |
3981 | ||
3982 | inline long long | |
3983 | stoll(const string& __str, size_t* __idx = 0, int __base = 10) | |
3984 | { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(), | |
3985 | __idx, __base); } | |
3986 | ||
3987 | inline unsigned long long | |
3988 | stoull(const string& __str, size_t* __idx = 0, int __base = 10) | |
3989 | { return __gnu_cxx::__stoa(&std::strtoull, "stoull", __str.c_str(), | |
3990 | __idx, __base); } | |
3991 | ||
3992 | // NB: strtof vs strtod. | |
3993 | inline float | |
3994 | stof(const string& __str, size_t* __idx = 0) | |
3995 | { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); } | |
3996 | ||
3997 | inline double | |
3998 | stod(const string& __str, size_t* __idx = 0) | |
3999 | { return __gnu_cxx::__stoa(&std::strtod, "stod", __str.c_str(), __idx); } | |
4000 | ||
4001 | inline long double | |
4002 | stold(const string& __str, size_t* __idx = 0) | |
4003 | { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); } | |
23c64853 | 4004 | #endif // _GLIBCXX_USE_C99_STDLIB |
a5a6b586 | 4005 | |
cd0b94e6 | 4006 | // DR 1261. Insufficent overloads for to_string / to_wstring |
a4ecd144 | 4007 | |
a4ecd144 PC |
4008 | inline string |
4009 | to_string(int __val) | |
9d813ddd JW |
4010 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_INT__) <= 32 |
4011 | noexcept // any 32-bit value fits in the SSO buffer | |
4012 | #endif | |
cd0b94e6 JW |
4013 | { |
4014 | const bool __neg = __val < 0; | |
4015 | const unsigned __uval = __neg ? (unsigned)~__val + 1u : __val; | |
4016 | const auto __len = __detail::__to_chars_len(__uval); | |
4017 | string __str(__neg + __len, '-'); | |
4018 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
4019 | return __str; | |
4020 | } | |
a4ecd144 PC |
4021 | |
4022 | inline string | |
4023 | to_string(unsigned __val) | |
9d813ddd JW |
4024 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_INT__) <= 32 |
4025 | noexcept // any 32-bit value fits in the SSO buffer | |
4026 | #endif | |
cd0b94e6 JW |
4027 | { |
4028 | string __str(__detail::__to_chars_len(__val), '\0'); | |
4029 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
4030 | return __str; | |
4031 | } | |
a4ecd144 PC |
4032 | |
4033 | inline string | |
4034 | to_string(long __val) | |
9d813ddd JW |
4035 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_LONG__) <= 32 |
4036 | noexcept // any 32-bit value fits in the SSO buffer | |
4037 | #endif | |
cd0b94e6 JW |
4038 | { |
4039 | const bool __neg = __val < 0; | |
4040 | const unsigned long __uval = __neg ? (unsigned long)~__val + 1ul : __val; | |
4041 | const auto __len = __detail::__to_chars_len(__uval); | |
4042 | string __str(__neg + __len, '-'); | |
4043 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
4044 | return __str; | |
4045 | } | |
a4ecd144 PC |
4046 | |
4047 | inline string | |
4048 | to_string(unsigned long __val) | |
9d813ddd JW |
4049 | #if _GLIBCXX_USE_CXX11_ABI && (__CHAR_BIT__ * __SIZEOF_LONG__) <= 32 |
4050 | noexcept // any 32-bit value fits in the SSO buffer | |
4051 | #endif | |
cd0b94e6 JW |
4052 | { |
4053 | string __str(__detail::__to_chars_len(__val), '\0'); | |
4054 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
4055 | return __str; | |
4056 | } | |
a4ecd144 | 4057 | |
a5a6b586 PC |
4058 | inline string |
4059 | to_string(long long __val) | |
cd0b94e6 JW |
4060 | { |
4061 | const bool __neg = __val < 0; | |
4062 | const unsigned long long __uval | |
4063 | = __neg ? (unsigned long long)~__val + 1ull : __val; | |
4064 | const auto __len = __detail::__to_chars_len(__uval); | |
4065 | string __str(__neg + __len, '-'); | |
4066 | __detail::__to_chars_10_impl(&__str[__neg], __len, __uval); | |
4067 | return __str; | |
4068 | } | |
a5a6b586 PC |
4069 | |
4070 | inline string | |
4071 | to_string(unsigned long long __val) | |
cd0b94e6 JW |
4072 | { |
4073 | string __str(__detail::__to_chars_len(__val), '\0'); | |
4074 | __detail::__to_chars_10_impl(&__str[0], __str.size(), __val); | |
4075 | return __str; | |
4076 | } | |
4077 | ||
4078 | #if _GLIBCXX_USE_C99_STDIO | |
4079 | // NB: (v)snprintf vs sprintf. | |
a5a6b586 | 4080 | |
a4ecd144 PC |
4081 | inline string |
4082 | to_string(float __val) | |
4083 | { | |
4084 | const int __n = | |
4085 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
4086 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
4087 | "%f", __val); | |
4088 | } | |
4089 | ||
4090 | inline string | |
4091 | to_string(double __val) | |
4092 | { | |
4093 | const int __n = | |
4094 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
4095 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
4096 | "%f", __val); | |
4097 | } | |
4098 | ||
a5a6b586 PC |
4099 | inline string |
4100 | to_string(long double __val) | |
4101 | { | |
4102 | const int __n = | |
4103 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
4104 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, | |
4105 | "%Lf", __val); | |
4106 | } | |
23c64853 | 4107 | #endif // _GLIBCXX_USE_C99_STDIO |
7364f286 | 4108 | |
356510ac | 4109 | #if defined(_GLIBCXX_USE_WCHAR_T) && _GLIBCXX_USE_C99_WCHAR |
a5a6b586 PC |
4110 | inline int |
4111 | stoi(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4112 | { return __gnu_cxx::__stoa<long, int>(&std::wcstol, "stoi", __str.c_str(), | |
4113 | __idx, __base); } | |
4114 | ||
4115 | inline long | |
4116 | stol(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4117 | { return __gnu_cxx::__stoa(&std::wcstol, "stol", __str.c_str(), | |
4118 | __idx, __base); } | |
4119 | ||
4120 | inline unsigned long | |
4121 | stoul(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4122 | { return __gnu_cxx::__stoa(&std::wcstoul, "stoul", __str.c_str(), | |
4123 | __idx, __base); } | |
4124 | ||
4125 | inline long long | |
4126 | stoll(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4127 | { return __gnu_cxx::__stoa(&std::wcstoll, "stoll", __str.c_str(), | |
4128 | __idx, __base); } | |
4129 | ||
4130 | inline unsigned long long | |
4131 | stoull(const wstring& __str, size_t* __idx = 0, int __base = 10) | |
4132 | { return __gnu_cxx::__stoa(&std::wcstoull, "stoull", __str.c_str(), | |
4133 | __idx, __base); } | |
4134 | ||
4135 | // NB: wcstof vs wcstod. | |
4136 | inline float | |
4137 | stof(const wstring& __str, size_t* __idx = 0) | |
4138 | { return __gnu_cxx::__stoa(&std::wcstof, "stof", __str.c_str(), __idx); } | |
4139 | ||
4140 | inline double | |
4141 | stod(const wstring& __str, size_t* __idx = 0) | |
4142 | { return __gnu_cxx::__stoa(&std::wcstod, "stod", __str.c_str(), __idx); } | |
4143 | ||
4144 | inline long double | |
4145 | stold(const wstring& __str, size_t* __idx = 0) | |
4146 | { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); } | |
4147 | ||
f37f5fb8 | 4148 | #ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
a4ecd144 PC |
4149 | // DR 1261. |
4150 | inline wstring | |
4151 | to_wstring(int __val) | |
4152 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(int), | |
4153 | L"%d", __val); } | |
4154 | ||
4155 | inline wstring | |
4156 | to_wstring(unsigned __val) | |
4157 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4158 | 4 * sizeof(unsigned), | |
4159 | L"%u", __val); } | |
4160 | ||
4161 | inline wstring | |
4162 | to_wstring(long __val) | |
4163 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(long), | |
4164 | L"%ld", __val); } | |
4165 | ||
4166 | inline wstring | |
4167 | to_wstring(unsigned long __val) | |
4168 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4169 | 4 * sizeof(unsigned long), | |
4170 | L"%lu", __val); } | |
4171 | ||
a5a6b586 PC |
4172 | inline wstring |
4173 | to_wstring(long long __val) | |
4174 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4175 | 4 * sizeof(long long), | |
4176 | L"%lld", __val); } | |
4177 | ||
4178 | inline wstring | |
4179 | to_wstring(unsigned long long __val) | |
4180 | { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, | |
4181 | 4 * sizeof(unsigned long long), | |
4182 | L"%llu", __val); } | |
4183 | ||
a4ecd144 PC |
4184 | inline wstring |
4185 | to_wstring(float __val) | |
4186 | { | |
4187 | const int __n = | |
4188 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; | |
4189 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
4190 | L"%f", __val); | |
4191 | } | |
4192 | ||
4193 | inline wstring | |
4194 | to_wstring(double __val) | |
4195 | { | |
4196 | const int __n = | |
4197 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; | |
4198 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
4199 | L"%f", __val); | |
4200 | } | |
4201 | ||
a5a6b586 PC |
4202 | inline wstring |
4203 | to_wstring(long double __val) | |
4204 | { | |
4205 | const int __n = | |
4206 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; | |
4207 | return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, | |
4208 | L"%Lf", __val); | |
4209 | } | |
f37f5fb8 | 4210 | #endif // _GLIBCXX_HAVE_BROKEN_VSWPRINTF |
23c64853 | 4211 | #endif // _GLIBCXX_USE_WCHAR_T && _GLIBCXX_USE_C99_WCHAR |
7364f286 | 4212 | |
34a2b755 | 4213 | _GLIBCXX_END_NAMESPACE_CXX11 |
12ffa228 BK |
4214 | _GLIBCXX_END_NAMESPACE_VERSION |
4215 | } // namespace | |
725dc051 | 4216 | |
23c64853 | 4217 | #endif /* C++11 */ |
15d81a3c | 4218 | |
734f5023 | 4219 | #if __cplusplus >= 201103L |
15d81a3c PC |
4220 | |
4221 | #include <bits/functional_hash.h> | |
4222 | ||
12ffa228 BK |
4223 | namespace std _GLIBCXX_VISIBILITY(default) |
4224 | { | |
4225 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
15d81a3c PC |
4226 | |
4227 | // DR 1182. | |
4228 | ||
4229 | #ifndef _GLIBCXX_COMPATIBILITY_CXX0X | |
4230 | /// std::hash specialization for string. | |
4231 | template<> | |
4232 | struct hash<string> | |
5d64ee19 | 4233 | : public __hash_base<size_t, string> |
15d81a3c PC |
4234 | { |
4235 | size_t | |
72f1c34b | 4236 | operator()(const string& __s) const noexcept |
e7f72940 | 4237 | { return std::_Hash_impl::hash(__s.data(), __s.length()); } |
15d81a3c PC |
4238 | }; |
4239 | ||
4df047dd FD |
4240 | template<> |
4241 | struct __is_fast_hash<hash<string>> : std::false_type | |
4242 | { }; | |
4243 | ||
15d81a3c PC |
4244 | /// std::hash specialization for wstring. |
4245 | template<> | |
4246 | struct hash<wstring> | |
5d64ee19 | 4247 | : public __hash_base<size_t, wstring> |
15d81a3c PC |
4248 | { |
4249 | size_t | |
72f1c34b | 4250 | operator()(const wstring& __s) const noexcept |
e7f72940 MA |
4251 | { return std::_Hash_impl::hash(__s.data(), |
4252 | __s.length() * sizeof(wchar_t)); } | |
15d81a3c | 4253 | }; |
4df047dd FD |
4254 | |
4255 | template<> | |
4256 | struct __is_fast_hash<hash<wstring>> : std::false_type | |
4257 | { }; | |
15d81a3c PC |
4258 | #endif /* _GLIBCXX_COMPATIBILITY_CXX0X */ |
4259 | ||
c124af93 TH |
4260 | #ifdef _GLIBCXX_USE_CHAR8_T |
4261 | /// std::hash specialization for u8string. | |
4262 | template<> | |
4263 | struct hash<u8string> | |
4264 | : public __hash_base<size_t, u8string> | |
4265 | { | |
4266 | size_t | |
4267 | operator()(const u8string& __s) const noexcept | |
4268 | { return std::_Hash_impl::hash(__s.data(), | |
4269 | __s.length() * sizeof(char8_t)); } | |
4270 | }; | |
4271 | ||
4272 | template<> | |
4273 | struct __is_fast_hash<hash<u8string>> : std::false_type | |
4274 | { }; | |
4275 | #endif | |
4276 | ||
15d81a3c PC |
4277 | /// std::hash specialization for u16string. |
4278 | template<> | |
4279 | struct hash<u16string> | |
5d64ee19 | 4280 | : public __hash_base<size_t, u16string> |
15d81a3c PC |
4281 | { |
4282 | size_t | |
72f1c34b | 4283 | operator()(const u16string& __s) const noexcept |
e7f72940 MA |
4284 | { return std::_Hash_impl::hash(__s.data(), |
4285 | __s.length() * sizeof(char16_t)); } | |
15d81a3c PC |
4286 | }; |
4287 | ||
4df047dd FD |
4288 | template<> |
4289 | struct __is_fast_hash<hash<u16string>> : std::false_type | |
4290 | { }; | |
4291 | ||
15d81a3c PC |
4292 | /// std::hash specialization for u32string. |
4293 | template<> | |
4294 | struct hash<u32string> | |
5d64ee19 | 4295 | : public __hash_base<size_t, u32string> |
15d81a3c PC |
4296 | { |
4297 | size_t | |
72f1c34b | 4298 | operator()(const u32string& __s) const noexcept |
e7f72940 MA |
4299 | { return std::_Hash_impl::hash(__s.data(), |
4300 | __s.length() * sizeof(char32_t)); } | |
15d81a3c | 4301 | }; |
4df047dd FD |
4302 | |
4303 | template<> | |
4304 | struct __is_fast_hash<hash<u32string>> : std::false_type | |
4305 | { }; | |
15d81a3c | 4306 | |
10f26de9 | 4307 | #if __cplusplus >= 201402L |
1c9f675f | 4308 | |
a15f7cb8 ESR |
4309 | #define __cpp_lib_string_udls 201304 |
4310 | ||
0372af98 ESR |
4311 | inline namespace literals |
4312 | { | |
4313 | inline namespace string_literals | |
4314 | { | |
f03858e5 JW |
4315 | #pragma GCC diagnostic push |
4316 | #pragma GCC diagnostic ignored "-Wliteral-suffix" | |
b96e2ff9 ML |
4317 | |
4318 | #if __cpp_lib_constexpr_string >= 201907L | |
4319 | # define _GLIBCXX_STRING_CONSTEXPR constexpr | |
4320 | #else | |
4321 | # define _GLIBCXX_STRING_CONSTEXPR | |
4322 | #endif | |
4323 | ||
4324 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR | |
88c4d6b7 | 4325 | inline basic_string<char> |
e9a64492 | 4326 | operator""s(const char* __str, size_t __len) |
88c4d6b7 | 4327 | { return basic_string<char>{__str, __len}; } |
1c9f675f | 4328 | |
b96e2ff9 | 4329 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
88c4d6b7 | 4330 | inline basic_string<wchar_t> |
e9a64492 | 4331 | operator""s(const wchar_t* __str, size_t __len) |
88c4d6b7 | 4332 | { return basic_string<wchar_t>{__str, __len}; } |
1c9f675f | 4333 | |
c124af93 | 4334 | #ifdef _GLIBCXX_USE_CHAR8_T |
b96e2ff9 | 4335 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
c124af93 TH |
4336 | inline basic_string<char8_t> |
4337 | operator""s(const char8_t* __str, size_t __len) | |
4338 | { return basic_string<char8_t>{__str, __len}; } | |
4339 | #endif | |
4340 | ||
b96e2ff9 | 4341 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
88c4d6b7 | 4342 | inline basic_string<char16_t> |
e9a64492 | 4343 | operator""s(const char16_t* __str, size_t __len) |
88c4d6b7 | 4344 | { return basic_string<char16_t>{__str, __len}; } |
1c9f675f | 4345 | |
b96e2ff9 | 4346 | _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_STRING_CONSTEXPR |
88c4d6b7 | 4347 | inline basic_string<char32_t> |
e9a64492 | 4348 | operator""s(const char32_t* __str, size_t __len) |
88c4d6b7 | 4349 | { return basic_string<char32_t>{__str, __len}; } |
1c9f675f | 4350 | |
b96e2ff9 | 4351 | #undef _GLIBCXX_STRING_CONSTEXPR |
f03858e5 | 4352 | #pragma GCC diagnostic pop |
88c4d6b7 ESR |
4353 | } // inline namespace string_literals |
4354 | } // inline namespace literals | |
4355 | ||
10f26de9 JW |
4356 | #if __cplusplus >= 201703L |
4357 | namespace __detail::__variant | |
4358 | { | |
4359 | template<typename> struct _Never_valueless_alt; // see <variant> | |
4360 | ||
4361 | // Provide the strong exception-safety guarantee when emplacing a | |
47a468bd | 4362 | // basic_string into a variant, but only if moving the string cannot throw. |
10f26de9 JW |
4363 | template<typename _Tp, typename _Traits, typename _Alloc> |
4364 | struct _Never_valueless_alt<std::basic_string<_Tp, _Traits, _Alloc>> | |
47a468bd JW |
4365 | : __and_< |
4366 | is_nothrow_move_constructible<std::basic_string<_Tp, _Traits, _Alloc>>, | |
4367 | is_nothrow_move_assignable<std::basic_string<_Tp, _Traits, _Alloc>> | |
4368 | >::type | |
10f26de9 JW |
4369 | { }; |
4370 | } // namespace __detail::__variant | |
4371 | #endif // C++17 | |
4372 | #endif // C++14 | |
1c9f675f | 4373 | |
4a15d842 | 4374 | _GLIBCXX_END_NAMESPACE_VERSION |
1c9f675f ESR |
4375 | } // namespace std |
4376 | ||
734f5023 | 4377 | #endif // C++11 |
a5a6b586 | 4378 | |
3d7c150e | 4379 | #endif /* _BASIC_STRING_H */ |