2 //===--------------------------- string -----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is distributed under the University of Illinois Open Source
7 // License. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_STRING
12 #define _LIBCPP_STRING
20 template <class stateT>
26 fpos(streamoff = streamoff());
28 operator streamoff() const;
33 fpos& operator+=(streamoff);
34 fpos operator+ (streamoff) const;
35 fpos& operator-=(streamoff);
36 fpos operator- (streamoff) const;
39 template <class stateT> streamoff operator-(const fpos<stateT>& x, const fpos<stateT>& y);
41 template <class stateT> bool operator==(const fpos<stateT>& x, const fpos<stateT>& y);
42 template <class stateT> bool operator!=(const fpos<stateT>& x, const fpos<stateT>& y);
44 template <class charT>
47 typedef charT char_type;
49 typedef streamoff off_type;
50 typedef streampos pos_type;
51 typedef mbstate_t state_type;
53 static void assign(char_type& c1, const char_type& c2) noexcept;
54 static constexpr bool eq(char_type c1, char_type c2) noexcept;
55 static constexpr bool lt(char_type c1, char_type c2) noexcept;
57 static int compare(const char_type* s1, const char_type* s2, size_t n);
58 static size_t length(const char_type* s);
59 static const char_type* find(const char_type* s, size_t n, const char_type& a);
60 static char_type* move(char_type* s1, const char_type* s2, size_t n);
61 static char_type* copy(char_type* s1, const char_type* s2, size_t n);
62 static char_type* assign(char_type* s, size_t n, char_type a);
64 static constexpr int_type not_eof(int_type c) noexcept;
65 static constexpr char_type to_char_type(int_type c) noexcept;
66 static constexpr int_type to_int_type(char_type c) noexcept;
67 static constexpr bool eq_int_type(int_type c1, int_type c2) noexcept;
68 static constexpr int_type eof() noexcept;
71 template <> struct char_traits<char>;
72 template <> struct char_traits<wchar_t>;
74 template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
79 typedef traits traits_type;
80 typedef typename traits_type::char_type value_type;
81 typedef Allocator allocator_type;
82 typedef typename allocator_type::size_type size_type;
83 typedef typename allocator_type::difference_type difference_type;
84 typedef typename allocator_type::reference reference;
85 typedef typename allocator_type::const_reference const_reference;
86 typedef typename allocator_type::pointer pointer;
87 typedef typename allocator_type::const_pointer const_pointer;
88 typedef implementation-defined iterator;
89 typedef implementation-defined const_iterator;
90 typedef std::reverse_iterator<iterator> reverse_iterator;
91 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
93 static const size_type npos = -1;
96 noexcept(is_nothrow_default_constructible<allocator_type>::value);
97 explicit basic_string(const allocator_type& a);
98 basic_string(const basic_string& str);
99 basic_string(basic_string&& str)
100 noexcept(is_nothrow_move_constructible<allocator_type>::value);
101 basic_string(const basic_string& str, size_type pos, size_type n = npos,
102 const allocator_type& a = allocator_type());
103 basic_string(const value_type* s, const allocator_type& a = allocator_type());
104 basic_string(const value_type* s, size_type n, const allocator_type& a = allocator_type());
105 basic_string(size_type n, value_type c, const allocator_type& a = allocator_type());
106 template<class InputIterator>
107 basic_string(InputIterator begin, InputIterator end,
108 const allocator_type& a = allocator_type());
109 basic_string(initializer_list<value_type>, const Allocator& = Allocator());
110 basic_string(const basic_string&, const Allocator&);
111 basic_string(basic_string&&, const Allocator&);
115 basic_string& operator=(const basic_string& str);
116 basic_string& operator=(basic_string&& str)
118 allocator_type::propagate_on_container_move_assignment::value ||
119 allocator_type::is_always_equal::value ); // C++17
120 basic_string& operator=(const value_type* s);
121 basic_string& operator=(value_type c);
122 basic_string& operator=(initializer_list<value_type>);
124 iterator begin() noexcept;
125 const_iterator begin() const noexcept;
126 iterator end() noexcept;
127 const_iterator end() const noexcept;
129 reverse_iterator rbegin() noexcept;
130 const_reverse_iterator rbegin() const noexcept;
131 reverse_iterator rend() noexcept;
132 const_reverse_iterator rend() const noexcept;
134 const_iterator cbegin() const noexcept;
135 const_iterator cend() const noexcept;
136 const_reverse_iterator crbegin() const noexcept;
137 const_reverse_iterator crend() const noexcept;
139 size_type size() const noexcept;
140 size_type length() const noexcept;
141 size_type max_size() const noexcept;
142 size_type capacity() const noexcept;
144 void resize(size_type n, value_type c);
145 void resize(size_type n);
147 void reserve(size_type res_arg = 0);
148 void shrink_to_fit();
149 void clear() noexcept;
150 bool empty() const noexcept;
152 const_reference operator[](size_type pos) const;
153 reference operator[](size_type pos);
155 const_reference at(size_type n) const;
156 reference at(size_type n);
158 basic_string& operator+=(const basic_string& str);
159 basic_string& operator+=(const value_type* s);
160 basic_string& operator+=(value_type c);
161 basic_string& operator+=(initializer_list<value_type>);
163 basic_string& append(const basic_string& str);
164 basic_string& append(const basic_string& str, size_type pos, size_type n=npos); //C++14
165 basic_string& append(const value_type* s, size_type n);
166 basic_string& append(const value_type* s);
167 basic_string& append(size_type n, value_type c);
168 template<class InputIterator>
169 basic_string& append(InputIterator first, InputIterator last);
170 basic_string& append(initializer_list<value_type>);
172 void push_back(value_type c);
175 const_reference front() const;
177 const_reference back() const;
179 basic_string& assign(const basic_string& str);
180 basic_string& assign(basic_string&& str);
181 basic_string& assign(const basic_string& str, size_type pos, size_type n=npos); // C++14
182 basic_string& assign(const value_type* s, size_type n);
183 basic_string& assign(const value_type* s);
184 basic_string& assign(size_type n, value_type c);
185 template<class InputIterator>
186 basic_string& assign(InputIterator first, InputIterator last);
187 basic_string& assign(initializer_list<value_type>);
189 basic_string& insert(size_type pos1, const basic_string& str);
190 basic_string& insert(size_type pos1, const basic_string& str,
191 size_type pos2, size_type n);
192 basic_string& insert(size_type pos, const value_type* s, size_type n=npos); //C++14
193 basic_string& insert(size_type pos, const value_type* s);
194 basic_string& insert(size_type pos, size_type n, value_type c);
195 iterator insert(const_iterator p, value_type c);
196 iterator insert(const_iterator p, size_type n, value_type c);
197 template<class InputIterator>
198 iterator insert(const_iterator p, InputIterator first, InputIterator last);
199 iterator insert(const_iterator p, initializer_list<value_type>);
201 basic_string& erase(size_type pos = 0, size_type n = npos);
202 iterator erase(const_iterator position);
203 iterator erase(const_iterator first, const_iterator last);
205 basic_string& replace(size_type pos1, size_type n1, const basic_string& str);
206 basic_string& replace(size_type pos1, size_type n1, const basic_string& str,
207 size_type pos2, size_type n2=npos); // C++14
208 basic_string& replace(size_type pos, size_type n1, const value_type* s, size_type n2);
209 basic_string& replace(size_type pos, size_type n1, const value_type* s);
210 basic_string& replace(size_type pos, size_type n1, size_type n2, value_type c);
211 basic_string& replace(const_iterator i1, const_iterator i2, const basic_string& str);
212 basic_string& replace(const_iterator i1, const_iterator i2, const value_type* s, size_type n);
213 basic_string& replace(const_iterator i1, const_iterator i2, const value_type* s);
214 basic_string& replace(const_iterator i1, const_iterator i2, size_type n, value_type c);
215 template<class InputIterator>
216 basic_string& replace(const_iterator i1, const_iterator i2, InputIterator j1, InputIterator j2);
217 basic_string& replace(const_iterator i1, const_iterator i2, initializer_list<value_type>);
219 size_type copy(value_type* s, size_type n, size_type pos = 0) const;
220 basic_string substr(size_type pos = 0, size_type n = npos) const;
222 void swap(basic_string& str)
223 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value ||
224 allocator_traits<allocator_type>::is_always_equal::value); // C++17
226 const value_type* c_str() const noexcept;
227 const value_type* data() const noexcept;
229 allocator_type get_allocator() const noexcept;
231 size_type find(const basic_string& str, size_type pos = 0) const noexcept;
232 size_type find(const value_type* s, size_type pos, size_type n) const noexcept;
233 size_type find(const value_type* s, size_type pos = 0) const noexcept;
234 size_type find(value_type c, size_type pos = 0) const noexcept;
236 size_type rfind(const basic_string& str, size_type pos = npos) const noexcept;
237 size_type rfind(const value_type* s, size_type pos, size_type n) const noexcept;
238 size_type rfind(const value_type* s, size_type pos = npos) const noexcept;
239 size_type rfind(value_type c, size_type pos = npos) const noexcept;
241 size_type find_first_of(const basic_string& str, size_type pos = 0) const noexcept;
242 size_type find_first_of(const value_type* s, size_type pos, size_type n) const noexcept;
243 size_type find_first_of(const value_type* s, size_type pos = 0) const noexcept;
244 size_type find_first_of(value_type c, size_type pos = 0) const noexcept;
246 size_type find_last_of(const basic_string& str, size_type pos = npos) const noexcept;
247 size_type find_last_of(const value_type* s, size_type pos, size_type n) const noexcept;
248 size_type find_last_of(const value_type* s, size_type pos = npos) const noexcept;
249 size_type find_last_of(value_type c, size_type pos = npos) const noexcept;
251 size_type find_first_not_of(const basic_string& str, size_type pos = 0) const noexcept;
252 size_type find_first_not_of(const value_type* s, size_type pos, size_type n) const noexcept;
253 size_type find_first_not_of(const value_type* s, size_type pos = 0) const noexcept;
254 size_type find_first_not_of(value_type c, size_type pos = 0) const noexcept;
256 size_type find_last_not_of(const basic_string& str, size_type pos = npos) const noexcept;
257 size_type find_last_not_of(const value_type* s, size_type pos, size_type n) const noexcept;
258 size_type find_last_not_of(const value_type* s, size_type pos = npos) const noexcept;
259 size_type find_last_not_of(value_type c, size_type pos = npos) const noexcept;
261 int compare(const basic_string& str) const noexcept;
262 int compare(size_type pos1, size_type n1, const basic_string& str) const;
263 int compare(size_type pos1, size_type n1, const basic_string& str,
264 size_type pos2, size_type n2=npos) const; // C++14
265 int compare(const value_type* s) const noexcept;
266 int compare(size_type pos1, size_type n1, const value_type* s) const;
267 int compare(size_type pos1, size_type n1, const value_type* s, size_type n2) const;
269 bool __invariants() const;
272 template<class charT, class traits, class Allocator>
273 basic_string<charT, traits, Allocator>
274 operator+(const basic_string<charT, traits, Allocator>& lhs,
275 const basic_string<charT, traits, Allocator>& rhs);
277 template<class charT, class traits, class Allocator>
278 basic_string<charT, traits, Allocator>
279 operator+(const charT* lhs , const basic_string<charT,traits,Allocator>&rhs);
281 template<class charT, class traits, class Allocator>
282 basic_string<charT, traits, Allocator>
283 operator+(charT lhs, const basic_string<charT,traits,Allocator>& rhs);
285 template<class charT, class traits, class Allocator>
286 basic_string<charT, traits, Allocator>
287 operator+(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs);
289 template<class charT, class traits, class Allocator>
290 basic_string<charT, traits, Allocator>
291 operator+(const basic_string<charT, traits, Allocator>& lhs, charT rhs);
293 template<class charT, class traits, class Allocator>
294 bool operator==(const basic_string<charT, traits, Allocator>& lhs,
295 const basic_string<charT, traits, Allocator>& rhs) noexcept;
297 template<class charT, class traits, class Allocator>
298 bool operator==(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
300 template<class charT, class traits, class Allocator>
301 bool operator==(const basic_string<charT,traits,Allocator>& lhs, const charT* rhs) noexcept;
303 template<class charT, class traits, class Allocator>
304 bool operator!=(const basic_string<charT,traits,Allocator>& lhs,
305 const basic_string<charT, traits, Allocator>& rhs) noexcept;
307 template<class charT, class traits, class Allocator>
308 bool operator!=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
310 template<class charT, class traits, class Allocator>
311 bool operator!=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
313 template<class charT, class traits, class Allocator>
314 bool operator< (const basic_string<charT, traits, Allocator>& lhs,
315 const basic_string<charT, traits, Allocator>& rhs) noexcept;
317 template<class charT, class traits, class Allocator>
318 bool operator< (const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
320 template<class charT, class traits, class Allocator>
321 bool operator< (const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
323 template<class charT, class traits, class Allocator>
324 bool operator> (const basic_string<charT, traits, Allocator>& lhs,
325 const basic_string<charT, traits, Allocator>& rhs) noexcept;
327 template<class charT, class traits, class Allocator>
328 bool operator> (const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
330 template<class charT, class traits, class Allocator>
331 bool operator> (const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
333 template<class charT, class traits, class Allocator>
334 bool operator<=(const basic_string<charT, traits, Allocator>& lhs,
335 const basic_string<charT, traits, Allocator>& rhs) noexcept;
337 template<class charT, class traits, class Allocator>
338 bool operator<=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
340 template<class charT, class traits, class Allocator>
341 bool operator<=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
343 template<class charT, class traits, class Allocator>
344 bool operator>=(const basic_string<charT, traits, Allocator>& lhs,
345 const basic_string<charT, traits, Allocator>& rhs) noexcept;
347 template<class charT, class traits, class Allocator>
348 bool operator>=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
350 template<class charT, class traits, class Allocator>
351 bool operator>=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
353 template<class charT, class traits, class Allocator>
354 void swap(basic_string<charT, traits, Allocator>& lhs,
355 basic_string<charT, traits, Allocator>& rhs)
356 noexcept(noexcept(lhs.swap(rhs)));
358 template<class charT, class traits, class Allocator>
359 basic_istream<charT, traits>&
360 operator>>(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str);
362 template<class charT, class traits, class Allocator>
363 basic_ostream<charT, traits>&
364 operator<<(basic_ostream<charT, traits>& os, const basic_string<charT, traits, Allocator>& str);
366 template<class charT, class traits, class Allocator>
367 basic_istream<charT, traits>&
368 getline(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str,
371 template<class charT, class traits, class Allocator>
372 basic_istream<charT, traits>&
373 getline(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str);
375 typedef basic_string<char> string;
376 typedef basic_string<wchar_t> wstring;
377 typedef basic_string<char16_t> u16string;
378 typedef basic_string<char32_t> u32string;
380 int stoi (const string& str, size_t* idx = 0, int base = 10);
381 long stol (const string& str, size_t* idx = 0, int base = 10);
382 unsigned long stoul (const string& str, size_t* idx = 0, int base = 10);
383 long long stoll (const string& str, size_t* idx = 0, int base = 10);
384 unsigned long long stoull(const string& str, size_t* idx = 0, int base = 10);
386 float stof (const string& str, size_t* idx = 0);
387 double stod (const string& str, size_t* idx = 0);
388 long double stold(const string& str, size_t* idx = 0);
390 string to_string(int val);
391 string to_string(unsigned val);
392 string to_string(long val);
393 string to_string(unsigned long val);
394 string to_string(long long val);
395 string to_string(unsigned long long val);
396 string to_string(float val);
397 string to_string(double val);
398 string to_string(long double val);
400 int stoi (const wstring& str, size_t* idx = 0, int base = 10);
401 long stol (const wstring& str, size_t* idx = 0, int base = 10);
402 unsigned long stoul (const wstring& str, size_t* idx = 0, int base = 10);
403 long long stoll (const wstring& str, size_t* idx = 0, int base = 10);
404 unsigned long long stoull(const wstring& str, size_t* idx = 0, int base = 10);
406 float stof (const wstring& str, size_t* idx = 0);
407 double stod (const wstring& str, size_t* idx = 0);
408 long double stold(const wstring& str, size_t* idx = 0);
410 wstring to_wstring(int val);
411 wstring to_wstring(unsigned val);
412 wstring to_wstring(long val);
413 wstring to_wstring(unsigned long val);
414 wstring to_wstring(long long val);
415 wstring to_wstring(unsigned long long val);
416 wstring to_wstring(float val);
417 wstring to_wstring(double val);
418 wstring to_wstring(long double val);
420 template <> struct hash<string>;
421 template <> struct hash<u16string>;
422 template <> struct hash<u32string>;
423 template <> struct hash<wstring>;
425 basic_string<char> operator "" s( const char *str, size_t len ); // C++14
426 basic_string<wchar_t> operator "" s( const wchar_t *str, size_t len ); // C++14
427 basic_string<char16_t> operator "" s( const char16_t *str, size_t len ); // C++14
428 basic_string<char32_t> operator "" s( const char32_t *str, size_t len ); // C++14
437 #include <cstdio> // For EOF.
444 #include <type_traits>
445 #include <initializer_list>
446 #include <__functional_base>
447 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
450 #if defined(_LIBCPP_NO_EXCEPTIONS)
454 #include <__undef_min_max>
458 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
459 #pragma GCC system_header
462 _LIBCPP_BEGIN_NAMESPACE_STD
466 template <class _StateT>
467 class _LIBCPP_TYPE_VIS_ONLY fpos
473 _LIBCPP_INLINE_VISIBILITY fpos(streamoff __off = streamoff()) : __st_(), __off_(__off) {}
475 _LIBCPP_INLINE_VISIBILITY operator streamoff() const {return __off_;}
477 _LIBCPP_INLINE_VISIBILITY _StateT state() const {return __st_;}
478 _LIBCPP_INLINE_VISIBILITY void state(_StateT __st) {__st_ = __st;}
480 _LIBCPP_INLINE_VISIBILITY fpos& operator+=(streamoff __off) {__off_ += __off; return *this;}
481 _LIBCPP_INLINE_VISIBILITY fpos operator+ (streamoff __off) const {fpos __t(*this); __t += __off; return __t;}
482 _LIBCPP_INLINE_VISIBILITY fpos& operator-=(streamoff __off) {__off_ -= __off; return *this;}
483 _LIBCPP_INLINE_VISIBILITY fpos operator- (streamoff __off) const {fpos __t(*this); __t -= __off; return __t;}
486 template <class _StateT>
487 inline _LIBCPP_INLINE_VISIBILITY
488 streamoff operator-(const fpos<_StateT>& __x, const fpos<_StateT>& __y)
489 {return streamoff(__x) - streamoff(__y);}
491 template <class _StateT>
492 inline _LIBCPP_INLINE_VISIBILITY
493 bool operator==(const fpos<_StateT>& __x, const fpos<_StateT>& __y)
494 {return streamoff(__x) == streamoff(__y);}
496 template <class _StateT>
497 inline _LIBCPP_INLINE_VISIBILITY
498 bool operator!=(const fpos<_StateT>& __x, const fpos<_StateT>& __y)
499 {return streamoff(__x) != streamoff(__y);}
503 template <class _CharT>
504 struct _LIBCPP_TYPE_VIS_ONLY char_traits
506 typedef _CharT char_type;
507 typedef int int_type;
508 typedef streamoff off_type;
509 typedef streampos pos_type;
510 typedef mbstate_t state_type;
512 static inline void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT
514 static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
515 {return __c1 == __c2;}
516 static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
517 {return __c1 < __c2;}
519 static int compare(const char_type* __s1, const char_type* __s2, size_t __n);
520 static size_t length(const char_type* __s);
521 static const char_type* find(const char_type* __s, size_t __n, const char_type& __a);
522 static char_type* move(char_type* __s1, const char_type* __s2, size_t __n);
523 static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n);
524 static char_type* assign(char_type* __s, size_t __n, char_type __a);
526 static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
527 {return eq_int_type(__c, eof()) ? ~eof() : __c;}
528 static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
529 {return char_type(__c);}
530 static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
531 {return int_type(__c);}
532 static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
533 {return __c1 == __c2;}
534 static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
535 {return int_type(EOF);}
538 template <class _CharT>
540 char_traits<_CharT>::compare(const char_type* __s1, const char_type* __s2, size_t __n)
542 for (; __n; --__n, ++__s1, ++__s2)
544 if (lt(*__s1, *__s2))
546 if (lt(*__s2, *__s1))
552 template <class _CharT>
553 inline _LIBCPP_INLINE_VISIBILITY
555 char_traits<_CharT>::length(const char_type* __s)
558 for (; !eq(*__s, char_type(0)); ++__s)
563 template <class _CharT>
564 inline _LIBCPP_INLINE_VISIBILITY
566 char_traits<_CharT>::find(const char_type* __s, size_t __n, const char_type& __a)
577 template <class _CharT>
579 char_traits<_CharT>::move(char_type* __s1, const char_type* __s2, size_t __n)
581 char_type* __r = __s1;
584 for (; __n; --__n, ++__s1, ++__s2)
585 assign(*__s1, *__s2);
587 else if (__s2 < __s1)
592 assign(*--__s1, *--__s2);
597 template <class _CharT>
598 inline _LIBCPP_INLINE_VISIBILITY
600 char_traits<_CharT>::copy(char_type* __s1, const char_type* __s2, size_t __n)
602 _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
603 char_type* __r = __s1;
604 for (; __n; --__n, ++__s1, ++__s2)
605 assign(*__s1, *__s2);
609 template <class _CharT>
610 inline _LIBCPP_INLINE_VISIBILITY
612 char_traits<_CharT>::assign(char_type* __s, size_t __n, char_type __a)
614 char_type* __r = __s;
615 for (; __n; --__n, ++__s)
623 struct _LIBCPP_TYPE_VIS_ONLY char_traits<char>
625 typedef char char_type;
626 typedef int int_type;
627 typedef streamoff off_type;
628 typedef streampos pos_type;
629 typedef mbstate_t state_type;
631 static inline void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT
633 static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
634 {return __c1 == __c2;}
635 static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
636 {return (unsigned char)__c1 < (unsigned char)__c2;}
638 static inline int compare(const char_type* __s1, const char_type* __s2, size_t __n)
639 {return __n == 0 ? 0 : memcmp(__s1, __s2, __n);}
640 static inline size_t length(const char_type* __s) {return strlen(__s);}
641 static inline const char_type* find(const char_type* __s, size_t __n, const char_type& __a)
642 {return __n == 0 ? NULL : (const char_type*) memchr(__s, to_int_type(__a), __n);}
643 static inline char_type* move(char_type* __s1, const char_type* __s2, size_t __n)
644 {return __n == 0 ? __s1 : (char_type*) memmove(__s1, __s2, __n);}
645 static inline char_type* copy(char_type* __s1, const char_type* __s2, size_t __n)
647 _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
648 return __n == 0 ? __s1 : (char_type*)memcpy(__s1, __s2, __n);
650 static inline char_type* assign(char_type* __s, size_t __n, char_type __a)
651 {return __n == 0 ? __s : (char_type*)memset(__s, to_int_type(__a), __n);}
653 static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
654 {return eq_int_type(__c, eof()) ? ~eof() : __c;}
655 static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
656 {return char_type(__c);}
657 static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
658 {return int_type((unsigned char)__c);}
659 static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
660 {return __c1 == __c2;}
661 static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
662 {return int_type(EOF);}
665 // char_traits<wchar_t>
668 struct _LIBCPP_TYPE_VIS_ONLY char_traits<wchar_t>
670 typedef wchar_t char_type;
671 typedef wint_t int_type;
672 typedef streamoff off_type;
673 typedef streampos pos_type;
674 typedef mbstate_t state_type;
676 static inline void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT
678 static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
679 {return __c1 == __c2;}
680 static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
681 {return __c1 < __c2;}
683 static inline int compare(const char_type* __s1, const char_type* __s2, size_t __n)
684 {return __n == 0 ? 0 : wmemcmp(__s1, __s2, __n);}
685 static inline size_t length(const char_type* __s)
686 {return wcslen(__s);}
687 static inline const char_type* find(const char_type* __s, size_t __n, const char_type& __a)
688 {return __n == 0 ? NULL : (const char_type*)wmemchr(__s, __a, __n);}
689 static inline char_type* move(char_type* __s1, const char_type* __s2, size_t __n)
690 {return __n == 0 ? __s1 : (char_type*)wmemmove(__s1, __s2, __n);}
691 static inline char_type* copy(char_type* __s1, const char_type* __s2, size_t __n)
693 _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
694 return __n == 0 ? __s1 : (char_type*)wmemcpy(__s1, __s2, __n);
696 static inline char_type* assign(char_type* __s, size_t __n, char_type __a)
697 {return __n == 0 ? __s : (char_type*)wmemset(__s, __a, __n);}
699 static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
700 {return eq_int_type(__c, eof()) ? ~eof() : __c;}
701 static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
702 {return char_type(__c);}
703 static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
704 {return int_type(__c);}
705 static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
706 {return __c1 == __c2;}
707 static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
708 {return int_type(WEOF);}
711 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
714 struct _LIBCPP_TYPE_VIS_ONLY char_traits<char16_t>
716 typedef char16_t char_type;
717 typedef uint_least16_t int_type;
718 typedef streamoff off_type;
719 typedef u16streampos pos_type;
720 typedef mbstate_t state_type;
722 static inline void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT
724 static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
725 {return __c1 == __c2;}
726 static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
727 {return __c1 < __c2;}
729 static int compare(const char_type* __s1, const char_type* __s2, size_t __n);
730 static size_t length(const char_type* __s);
731 static const char_type* find(const char_type* __s, size_t __n, const char_type& __a);
732 static char_type* move(char_type* __s1, const char_type* __s2, size_t __n);
733 static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n);
734 static char_type* assign(char_type* __s, size_t __n, char_type __a);
736 static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
737 {return eq_int_type(__c, eof()) ? ~eof() : __c;}
738 static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
739 {return char_type(__c);}
740 static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
741 {return int_type(__c);}
742 static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
743 {return __c1 == __c2;}
744 static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
745 {return int_type(0xFFFF);}
748 inline _LIBCPP_INLINE_VISIBILITY
750 char_traits<char16_t>::compare(const char_type* __s1, const char_type* __s2, size_t __n)
752 for (; __n; --__n, ++__s1, ++__s2)
754 if (lt(*__s1, *__s2))
756 if (lt(*__s2, *__s1))
762 inline _LIBCPP_INLINE_VISIBILITY
764 char_traits<char16_t>::length(const char_type* __s)
767 for (; !eq(*__s, char_type(0)); ++__s)
772 inline _LIBCPP_INLINE_VISIBILITY
774 char_traits<char16_t>::find(const char_type* __s, size_t __n, const char_type& __a)
785 inline _LIBCPP_INLINE_VISIBILITY
787 char_traits<char16_t>::move(char_type* __s1, const char_type* __s2, size_t __n)
789 char_type* __r = __s1;
792 for (; __n; --__n, ++__s1, ++__s2)
793 assign(*__s1, *__s2);
795 else if (__s2 < __s1)
800 assign(*--__s1, *--__s2);
805 inline _LIBCPP_INLINE_VISIBILITY
807 char_traits<char16_t>::copy(char_type* __s1, const char_type* __s2, size_t __n)
809 _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
810 char_type* __r = __s1;
811 for (; __n; --__n, ++__s1, ++__s2)
812 assign(*__s1, *__s2);
816 inline _LIBCPP_INLINE_VISIBILITY
818 char_traits<char16_t>::assign(char_type* __s, size_t __n, char_type __a)
820 char_type* __r = __s;
821 for (; __n; --__n, ++__s)
827 struct _LIBCPP_TYPE_VIS_ONLY char_traits<char32_t>
829 typedef char32_t char_type;
830 typedef uint_least32_t int_type;
831 typedef streamoff off_type;
832 typedef u32streampos pos_type;
833 typedef mbstate_t state_type;
835 static inline void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT
837 static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
838 {return __c1 == __c2;}
839 static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
840 {return __c1 < __c2;}
842 static int compare(const char_type* __s1, const char_type* __s2, size_t __n);
843 static size_t length(const char_type* __s);
844 static const char_type* find(const char_type* __s, size_t __n, const char_type& __a);
845 static char_type* move(char_type* __s1, const char_type* __s2, size_t __n);
846 static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n);
847 static char_type* assign(char_type* __s, size_t __n, char_type __a);
849 static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
850 {return eq_int_type(__c, eof()) ? ~eof() : __c;}
851 static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
852 {return char_type(__c);}
853 static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
854 {return int_type(__c);}
855 static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
856 {return __c1 == __c2;}
857 static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
858 {return int_type(0xFFFFFFFF);}
861 inline _LIBCPP_INLINE_VISIBILITY
863 char_traits<char32_t>::compare(const char_type* __s1, const char_type* __s2, size_t __n)
865 for (; __n; --__n, ++__s1, ++__s2)
867 if (lt(*__s1, *__s2))
869 if (lt(*__s2, *__s1))
875 inline _LIBCPP_INLINE_VISIBILITY
877 char_traits<char32_t>::length(const char_type* __s)
880 for (; !eq(*__s, char_type(0)); ++__s)
885 inline _LIBCPP_INLINE_VISIBILITY
887 char_traits<char32_t>::find(const char_type* __s, size_t __n, const char_type& __a)
898 inline _LIBCPP_INLINE_VISIBILITY
900 char_traits<char32_t>::move(char_type* __s1, const char_type* __s2, size_t __n)
902 char_type* __r = __s1;
905 for (; __n; --__n, ++__s1, ++__s2)
906 assign(*__s1, *__s2);
908 else if (__s2 < __s1)
913 assign(*--__s1, *--__s2);
918 inline _LIBCPP_INLINE_VISIBILITY
920 char_traits<char32_t>::copy(char_type* __s1, const char_type* __s2, size_t __n)
922 _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
923 char_type* __r = __s1;
924 for (; __n; --__n, ++__s1, ++__s2)
925 assign(*__s1, *__s2);
929 inline _LIBCPP_INLINE_VISIBILITY
931 char_traits<char32_t>::assign(char_type* __s, size_t __n, char_type __a)
933 char_type* __r = __s;
934 for (; __n; --__n, ++__s)
939 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
941 // helper fns for basic_string
944 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
945 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
946 __str_find(const _CharT *__p, _SizeT __sz,
947 _CharT __c, _SizeT __pos) _NOEXCEPT
951 const _CharT* __r = _Traits::find(__p + __pos, __sz - __pos, __c);
954 return static_cast<_SizeT>(__r - __p);
957 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
958 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
959 __str_find(const _CharT *__p, _SizeT __sz,
960 const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
962 if (__pos > __sz || __sz - __pos < __n)
967 _VSTD::__search(__p + __pos, __p + __sz,
968 __s, __s + __n, _Traits::eq,
969 random_access_iterator_tag(), random_access_iterator_tag());
970 if (__r == __p + __sz)
972 return static_cast<_SizeT>(__r - __p);
978 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
979 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
980 __str_rfind(const _CharT *__p, _SizeT __sz,
981 _CharT __c, _SizeT __pos) _NOEXCEPT
989 for (const _CharT* __ps = __p + __pos; __ps != __p;)
991 if (_Traits::eq(*--__ps, __c))
992 return static_cast<_SizeT>(__ps - __p);
997 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
998 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
999 __str_rfind(const _CharT *__p, _SizeT __sz,
1000 const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
1002 __pos = _VSTD::min(__pos, __sz);
1003 if (__n < __sz - __pos)
1007 const _CharT* __r = _VSTD::__find_end(
1008 __p, __p + __pos, __s, __s + __n, _Traits::eq,
1009 random_access_iterator_tag(), random_access_iterator_tag());
1010 if (__n > 0 && __r == __p + __pos)
1012 return static_cast<_SizeT>(__r - __p);
1015 // __str_find_first_of
1016 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
1017 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1018 __str_find_first_of(const _CharT *__p, _SizeT __sz,
1019 const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
1021 if (__pos >= __sz || __n == 0)
1023 const _CharT* __r = _VSTD::__find_first_of_ce
1024 (__p + __pos, __p + __sz, __s, __s + __n, _Traits::eq );
1025 if (__r == __p + __sz)
1027 return static_cast<_SizeT>(__r - __p);
1031 // __str_find_last_of
1032 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
1033 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1034 __str_find_last_of(const _CharT *__p, _SizeT __sz,
1035 const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
1043 for (const _CharT* __ps = __p + __pos; __ps != __p;)
1045 const _CharT* __r = _Traits::find(__s, __n, *--__ps);
1047 return static_cast<_SizeT>(__ps - __p);
1054 // __str_find_first_not_of
1055 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
1056 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1057 __str_find_first_not_of(const _CharT *__p, _SizeT __sz,
1058 const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
1062 const _CharT* __pe = __p + __sz;
1063 for (const _CharT* __ps = __p + __pos; __ps != __pe; ++__ps)
1064 if (_Traits::find(__s, __n, *__ps) == 0)
1065 return static_cast<_SizeT>(__ps - __p);
1071 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
1072 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1073 __str_find_first_not_of(const _CharT *__p, _SizeT __sz,
1074 _CharT __c, _SizeT __pos) _NOEXCEPT
1078 const _CharT* __pe = __p + __sz;
1079 for (const _CharT* __ps = __p + __pos; __ps != __pe; ++__ps)
1080 if (!_Traits::eq(*__ps, __c))
1081 return static_cast<_SizeT>(__ps - __p);
1087 // __str_find_last_not_of
1088 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
1089 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1090 __str_find_last_not_of(const _CharT *__p, _SizeT __sz,
1091 const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
1097 for (const _CharT* __ps = __p + __pos; __ps != __p;)
1098 if (_Traits::find(__s, __n, *--__ps) == 0)
1099 return static_cast<_SizeT>(__ps - __p);
1104 template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
1105 _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1106 __str_find_last_not_of(const _CharT *__p, _SizeT __sz,
1107 _CharT __c, _SizeT __pos) _NOEXCEPT
1113 for (const _CharT* __ps = __p + __pos; __ps != __p;)
1114 if (!_Traits::eq(*--__ps, __c))
1115 return static_cast<_SizeT>(__ps - __p);
1119 template<class _Ptr>
1120 size_t _LIBCPP_INLINE_VISIBILITY __do_string_hash(_Ptr __p, _Ptr __e)
1122 typedef typename iterator_traits<_Ptr>::value_type value_type;
1123 return __murmur2_or_cityhash<size_t>()(__p, (__e-__p)*sizeof(value_type));
1128 template<class _CharT, class _Traits, class _Allocator>
1129 basic_string<_CharT, _Traits, _Allocator>
1130 operator+(const basic_string<_CharT, _Traits, _Allocator>& __x,
1131 const basic_string<_CharT, _Traits, _Allocator>& __y);
1133 template<class _CharT, class _Traits, class _Allocator>
1134 basic_string<_CharT, _Traits, _Allocator>
1135 operator+(const _CharT* __x, const basic_string<_CharT,_Traits,_Allocator>& __y);
1137 template<class _CharT, class _Traits, class _Allocator>
1138 basic_string<_CharT, _Traits, _Allocator>
1139 operator+(_CharT __x, const basic_string<_CharT,_Traits,_Allocator>& __y);
1141 template<class _CharT, class _Traits, class _Allocator>
1142 basic_string<_CharT, _Traits, _Allocator>
1143 operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, const _CharT* __y);
1145 template<class _CharT, class _Traits, class _Allocator>
1146 basic_string<_CharT, _Traits, _Allocator>
1147 operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, _CharT __y);
1150 class _LIBCPP_TYPE_VIS_ONLY __basic_string_common
1153 void __throw_length_error() const;
1154 void __throw_out_of_range() const;
1159 __basic_string_common<__b>::__throw_length_error() const
1161 #ifndef _LIBCPP_NO_EXCEPTIONS
1162 throw length_error("basic_string");
1164 assert(!"basic_string length_error");
1170 __basic_string_common<__b>::__throw_out_of_range() const
1172 #ifndef _LIBCPP_NO_EXCEPTIONS
1173 throw out_of_range("basic_string");
1175 assert(!"basic_string out_of_range");
1180 #pragma warning( push )
1181 #pragma warning( disable: 4231 )
1182 #endif // _LIBCPP_MSVC
1183 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS __basic_string_common<true>)
1185 #pragma warning( pop )
1186 #endif // _LIBCPP_MSVC
1188 #ifdef _LIBCPP_ALTERNATE_STRING_LAYOUT
1190 template <class _CharT, size_t = sizeof(_CharT)>
1193 unsigned char __xx[sizeof(_CharT)-1];
1196 template <class _CharT>
1197 struct __padding<_CharT, 1>
1201 #endif // _LIBCPP_ALTERNATE_STRING_LAYOUT
1203 template<class _CharT, class _Traits, class _Allocator>
1204 class _LIBCPP_TYPE_VIS_ONLY basic_string
1205 : private __basic_string_common<true>
1208 typedef basic_string __self;
1209 typedef _Traits traits_type;
1210 typedef typename traits_type::char_type value_type;
1211 typedef _Allocator allocator_type;
1212 typedef allocator_traits<allocator_type> __alloc_traits;
1213 typedef typename __alloc_traits::size_type size_type;
1214 typedef typename __alloc_traits::difference_type difference_type;
1215 typedef value_type& reference;
1216 typedef const value_type& const_reference;
1217 typedef typename __alloc_traits::pointer pointer;
1218 typedef typename __alloc_traits::const_pointer const_pointer;
1220 static_assert(is_pod<value_type>::value, "Character type of basic_string must be a POD");
1221 static_assert((is_same<_CharT, value_type>::value),
1222 "traits_type::char_type must be the same type as CharT");
1223 static_assert((is_same<typename allocator_type::value_type, value_type>::value),
1224 "Allocator::value_type must be same type as value_type");
1225 #if defined(_LIBCPP_RAW_ITERATORS)
1226 typedef pointer iterator;
1227 typedef const_pointer const_iterator;
1228 #else // defined(_LIBCPP_RAW_ITERATORS)
1229 typedef __wrap_iter<pointer> iterator;
1230 typedef __wrap_iter<const_pointer> const_iterator;
1231 #endif // defined(_LIBCPP_RAW_ITERATORS)
1232 typedef _VSTD::reverse_iterator<iterator> reverse_iterator;
1233 typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator;
1237 #ifdef _LIBCPP_ALTERNATE_STRING_LAYOUT
1246 #if _LIBCPP_BIG_ENDIAN
1247 enum {__short_mask = 0x01};
1248 enum {__long_mask = 0x1ul};
1249 #else // _LIBCPP_BIG_ENDIAN
1250 enum {__short_mask = 0x80};
1251 enum {__long_mask = ~(size_type(~0) >> 1)};
1252 #endif // _LIBCPP_BIG_ENDIAN
1254 enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ?
1255 (sizeof(__long) - 1)/sizeof(value_type) : 2};
1259 value_type __data_[__min_cap];
1261 : __padding<value_type>
1263 unsigned char __size_;
1276 #if _LIBCPP_BIG_ENDIAN
1277 enum {__short_mask = 0x80};
1278 enum {__long_mask = ~(size_type(~0) >> 1)};
1279 #else // _LIBCPP_BIG_ENDIAN
1280 enum {__short_mask = 0x01};
1281 enum {__long_mask = 0x1ul};
1282 #endif // _LIBCPP_BIG_ENDIAN
1284 enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ?
1285 (sizeof(__long) - 1)/sizeof(value_type) : 2};
1291 unsigned char __size_;
1294 value_type __data_[__min_cap];
1297 #endif // _LIBCPP_ALTERNATE_STRING_LAYOUT
1299 union __ulx{__long __lx; __short __lxx;};
1301 enum {__n_words = sizeof(__ulx) / sizeof(size_type)};
1305 size_type __words[__n_words];
1318 __compressed_pair<__rep, allocator_type> __r_;
1321 static const size_type npos = -1;
1323 _LIBCPP_INLINE_VISIBILITY basic_string()
1324 _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
1326 _LIBCPP_INLINE_VISIBILITY explicit basic_string(const allocator_type& __a)
1327 #if _LIBCPP_STD_VER <= 14
1328 _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value);
1333 basic_string(const basic_string& __str);
1334 basic_string(const basic_string& __str, const allocator_type& __a);
1336 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1337 _LIBCPP_INLINE_VISIBILITY
1338 basic_string(basic_string&& __str)
1339 #if _LIBCPP_STD_VER <= 14
1340 _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value);
1345 _LIBCPP_INLINE_VISIBILITY
1346 basic_string(basic_string&& __str, const allocator_type& __a);
1347 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
1348 _LIBCPP_INLINE_VISIBILITY basic_string(const value_type* __s);
1349 _LIBCPP_INLINE_VISIBILITY
1350 basic_string(const value_type* __s, const allocator_type& __a);
1351 _LIBCPP_INLINE_VISIBILITY
1352 basic_string(const value_type* __s, size_type __n);
1353 _LIBCPP_INLINE_VISIBILITY
1354 basic_string(const value_type* __s, size_type __n, const allocator_type& __a);
1355 _LIBCPP_INLINE_VISIBILITY
1356 basic_string(size_type __n, value_type __c);
1357 _LIBCPP_INLINE_VISIBILITY
1358 basic_string(size_type __n, value_type __c, const allocator_type& __a);
1359 basic_string(const basic_string& __str, size_type __pos, size_type __n = npos,
1360 const allocator_type& __a = allocator_type());
1361 template<class _InputIterator>
1362 _LIBCPP_INLINE_VISIBILITY
1363 basic_string(_InputIterator __first, _InputIterator __last);
1364 template<class _InputIterator>
1365 _LIBCPP_INLINE_VISIBILITY
1366 basic_string(_InputIterator __first, _InputIterator __last, const allocator_type& __a);
1367 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1368 _LIBCPP_INLINE_VISIBILITY
1369 basic_string(initializer_list<value_type> __il);
1370 _LIBCPP_INLINE_VISIBILITY
1371 basic_string(initializer_list<value_type> __il, const allocator_type& __a);
1372 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1376 basic_string& operator=(const basic_string& __str);
1377 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1378 _LIBCPP_INLINE_VISIBILITY
1379 basic_string& operator=(basic_string&& __str)
1380 _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value));
1382 _LIBCPP_INLINE_VISIBILITY basic_string& operator=(const value_type* __s) {return assign(__s);}
1383 basic_string& operator=(value_type __c);
1384 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1385 _LIBCPP_INLINE_VISIBILITY
1386 basic_string& operator=(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());}
1387 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1389 #if _LIBCPP_DEBUG_LEVEL >= 2
1390 _LIBCPP_INLINE_VISIBILITY
1391 iterator begin() _NOEXCEPT
1392 {return iterator(this, __get_pointer());}
1393 _LIBCPP_INLINE_VISIBILITY
1394 const_iterator begin() const _NOEXCEPT
1395 {return const_iterator(this, __get_pointer());}
1396 _LIBCPP_INLINE_VISIBILITY
1397 iterator end() _NOEXCEPT
1398 {return iterator(this, __get_pointer() + size());}
1399 _LIBCPP_INLINE_VISIBILITY
1400 const_iterator end() const _NOEXCEPT
1401 {return const_iterator(this, __get_pointer() + size());}
1403 _LIBCPP_INLINE_VISIBILITY
1404 iterator begin() _NOEXCEPT
1405 {return iterator(__get_pointer());}
1406 _LIBCPP_INLINE_VISIBILITY
1407 const_iterator begin() const _NOEXCEPT
1408 {return const_iterator(__get_pointer());}
1409 _LIBCPP_INLINE_VISIBILITY
1410 iterator end() _NOEXCEPT
1411 {return iterator(__get_pointer() + size());}
1412 _LIBCPP_INLINE_VISIBILITY
1413 const_iterator end() const _NOEXCEPT
1414 {return const_iterator(__get_pointer() + size());}
1415 #endif // _LIBCPP_DEBUG_LEVEL >= 2
1416 _LIBCPP_INLINE_VISIBILITY
1417 reverse_iterator rbegin() _NOEXCEPT
1418 {return reverse_iterator(end());}
1419 _LIBCPP_INLINE_VISIBILITY
1420 const_reverse_iterator rbegin() const _NOEXCEPT
1421 {return const_reverse_iterator(end());}
1422 _LIBCPP_INLINE_VISIBILITY
1423 reverse_iterator rend() _NOEXCEPT
1424 {return reverse_iterator(begin());}
1425 _LIBCPP_INLINE_VISIBILITY
1426 const_reverse_iterator rend() const _NOEXCEPT
1427 {return const_reverse_iterator(begin());}
1429 _LIBCPP_INLINE_VISIBILITY
1430 const_iterator cbegin() const _NOEXCEPT
1432 _LIBCPP_INLINE_VISIBILITY
1433 const_iterator cend() const _NOEXCEPT
1435 _LIBCPP_INLINE_VISIBILITY
1436 const_reverse_iterator crbegin() const _NOEXCEPT
1438 _LIBCPP_INLINE_VISIBILITY
1439 const_reverse_iterator crend() const _NOEXCEPT
1442 _LIBCPP_INLINE_VISIBILITY size_type size() const _NOEXCEPT
1443 {return __is_long() ? __get_long_size() : __get_short_size();}
1444 _LIBCPP_INLINE_VISIBILITY size_type length() const _NOEXCEPT {return size();}
1445 _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT;
1446 _LIBCPP_INLINE_VISIBILITY size_type capacity() const _NOEXCEPT
1447 {return (__is_long() ? __get_long_cap() : __min_cap) - 1;}
1449 void resize(size_type __n, value_type __c);
1450 _LIBCPP_INLINE_VISIBILITY void resize(size_type __n) {resize(__n, value_type());}
1452 void reserve(size_type res_arg = 0);
1453 _LIBCPP_INLINE_VISIBILITY
1454 void shrink_to_fit() _NOEXCEPT {reserve();}
1455 _LIBCPP_INLINE_VISIBILITY
1456 void clear() _NOEXCEPT;
1457 _LIBCPP_INLINE_VISIBILITY bool empty() const _NOEXCEPT {return size() == 0;}
1459 _LIBCPP_INLINE_VISIBILITY const_reference operator[](size_type __pos) const;
1460 _LIBCPP_INLINE_VISIBILITY reference operator[](size_type __pos);
1462 const_reference at(size_type __n) const;
1463 reference at(size_type __n);
1465 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(const basic_string& __str) {return append(__str);}
1466 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(const value_type* __s) {return append(__s);}
1467 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(value_type __c) {push_back(__c); return *this;}
1468 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1469 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(initializer_list<value_type> __il) {return append(__il);}
1470 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1472 _LIBCPP_INLINE_VISIBILITY
1473 basic_string& append(const basic_string& __str);
1474 basic_string& append(const basic_string& __str, size_type __pos, size_type __n=npos);
1475 basic_string& append(const value_type* __s, size_type __n);
1476 basic_string& append(const value_type* __s);
1477 basic_string& append(size_type __n, value_type __c);
1478 template<class _InputIterator>
1481 __is_input_iterator <_InputIterator>::value &&
1482 !__is_forward_iterator<_InputIterator>::value,
1485 append(_InputIterator __first, _InputIterator __last);
1486 template<class _ForwardIterator>
1489 __is_forward_iterator<_ForwardIterator>::value,
1492 append(_ForwardIterator __first, _ForwardIterator __last);
1493 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1494 _LIBCPP_INLINE_VISIBILITY
1495 basic_string& append(initializer_list<value_type> __il) {return append(__il.begin(), __il.size());}
1496 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1498 void push_back(value_type __c);
1499 _LIBCPP_INLINE_VISIBILITY
1501 _LIBCPP_INLINE_VISIBILITY reference front();
1502 _LIBCPP_INLINE_VISIBILITY const_reference front() const;
1503 _LIBCPP_INLINE_VISIBILITY reference back();
1504 _LIBCPP_INLINE_VISIBILITY const_reference back() const;
1506 _LIBCPP_INLINE_VISIBILITY
1507 basic_string& assign(const basic_string& __str);
1508 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1509 _LIBCPP_INLINE_VISIBILITY
1510 basic_string& assign(basic_string&& str)
1511 {*this = _VSTD::move(str); return *this;}
1513 basic_string& assign(const basic_string& __str, size_type __pos, size_type __n=npos);
1514 basic_string& assign(const value_type* __s, size_type __n);
1515 basic_string& assign(const value_type* __s);
1516 basic_string& assign(size_type __n, value_type __c);
1517 template<class _InputIterator>
1520 __is_input_iterator <_InputIterator>::value &&
1521 !__is_forward_iterator<_InputIterator>::value,
1524 assign(_InputIterator __first, _InputIterator __last);
1525 template<class _ForwardIterator>
1528 __is_forward_iterator<_ForwardIterator>::value,
1531 assign(_ForwardIterator __first, _ForwardIterator __last);
1532 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1533 _LIBCPP_INLINE_VISIBILITY
1534 basic_string& assign(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());}
1535 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1537 _LIBCPP_INLINE_VISIBILITY
1538 basic_string& insert(size_type __pos1, const basic_string& __str);
1539 basic_string& insert(size_type __pos1, const basic_string& __str, size_type __pos2, size_type __n=npos);
1540 basic_string& insert(size_type __pos, const value_type* __s, size_type __n);
1541 basic_string& insert(size_type __pos, const value_type* __s);
1542 basic_string& insert(size_type __pos, size_type __n, value_type __c);
1543 iterator insert(const_iterator __pos, value_type __c);
1544 _LIBCPP_INLINE_VISIBILITY
1545 iterator insert(const_iterator __pos, size_type __n, value_type __c);
1546 template<class _InputIterator>
1549 __is_input_iterator <_InputIterator>::value &&
1550 !__is_forward_iterator<_InputIterator>::value,
1553 insert(const_iterator __pos, _InputIterator __first, _InputIterator __last);
1554 template<class _ForwardIterator>
1557 __is_forward_iterator<_ForwardIterator>::value,
1560 insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last);
1561 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1562 _LIBCPP_INLINE_VISIBILITY
1563 iterator insert(const_iterator __pos, initializer_list<value_type> __il)
1564 {return insert(__pos, __il.begin(), __il.end());}
1565 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1567 basic_string& erase(size_type __pos = 0, size_type __n = npos);
1568 _LIBCPP_INLINE_VISIBILITY
1569 iterator erase(const_iterator __pos);
1570 _LIBCPP_INLINE_VISIBILITY
1571 iterator erase(const_iterator __first, const_iterator __last);
1573 _LIBCPP_INLINE_VISIBILITY
1574 basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str);
1575 basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos);
1576 basic_string& replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2);
1577 basic_string& replace(size_type __pos, size_type __n1, const value_type* __s);
1578 basic_string& replace(size_type __pos, size_type __n1, size_type __n2, value_type __c);
1579 _LIBCPP_INLINE_VISIBILITY
1580 basic_string& replace(const_iterator __i1, const_iterator __i2, const basic_string& __str);
1581 _LIBCPP_INLINE_VISIBILITY
1582 basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n);
1583 _LIBCPP_INLINE_VISIBILITY
1584 basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s);
1585 _LIBCPP_INLINE_VISIBILITY
1586 basic_string& replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c);
1587 template<class _InputIterator>
1590 __is_input_iterator<_InputIterator>::value,
1593 replace(const_iterator __i1, const_iterator __i2, _InputIterator __j1, _InputIterator __j2);
1594 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1595 _LIBCPP_INLINE_VISIBILITY
1596 basic_string& replace(const_iterator __i1, const_iterator __i2, initializer_list<value_type> __il)
1597 {return replace(__i1, __i2, __il.begin(), __il.end());}
1598 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
1600 size_type copy(value_type* __s, size_type __n, size_type __pos = 0) const;
1601 _LIBCPP_INLINE_VISIBILITY
1602 basic_string substr(size_type __pos = 0, size_type __n = npos) const;
1604 _LIBCPP_INLINE_VISIBILITY
1605 void swap(basic_string& __str)
1606 #if _LIBCPP_STD_VER >= 14
1609 _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value ||
1610 __is_nothrow_swappable<allocator_type>::value);
1613 _LIBCPP_INLINE_VISIBILITY
1614 const value_type* c_str() const _NOEXCEPT {return data();}
1615 _LIBCPP_INLINE_VISIBILITY
1616 const value_type* data() const _NOEXCEPT {return _VSTD::__to_raw_pointer(__get_pointer());}
1618 _LIBCPP_INLINE_VISIBILITY
1619 allocator_type get_allocator() const _NOEXCEPT {return __alloc();}
1621 _LIBCPP_INLINE_VISIBILITY
1622 size_type find(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT;
1623 size_type find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
1624 _LIBCPP_INLINE_VISIBILITY
1625 size_type find(const value_type* __s, size_type __pos = 0) const _NOEXCEPT;
1626 size_type find(value_type __c, size_type __pos = 0) const _NOEXCEPT;
1628 _LIBCPP_INLINE_VISIBILITY
1629 size_type rfind(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT;
1630 size_type rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
1631 _LIBCPP_INLINE_VISIBILITY
1632 size_type rfind(const value_type* __s, size_type __pos = npos) const _NOEXCEPT;
1633 size_type rfind(value_type __c, size_type __pos = npos) const _NOEXCEPT;
1635 _LIBCPP_INLINE_VISIBILITY
1636 size_type find_first_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT;
1637 size_type find_first_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
1638 _LIBCPP_INLINE_VISIBILITY
1639 size_type find_first_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT;
1640 _LIBCPP_INLINE_VISIBILITY
1641 size_type find_first_of(value_type __c, size_type __pos = 0) const _NOEXCEPT;
1643 _LIBCPP_INLINE_VISIBILITY
1644 size_type find_last_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT;
1645 size_type find_last_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
1646 _LIBCPP_INLINE_VISIBILITY
1647 size_type find_last_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT;
1648 _LIBCPP_INLINE_VISIBILITY
1649 size_type find_last_of(value_type __c, size_type __pos = npos) const _NOEXCEPT;
1651 _LIBCPP_INLINE_VISIBILITY
1652 size_type find_first_not_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT;
1653 size_type find_first_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
1654 _LIBCPP_INLINE_VISIBILITY
1655 size_type find_first_not_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT;
1656 _LIBCPP_INLINE_VISIBILITY
1657 size_type find_first_not_of(value_type __c, size_type __pos = 0) const _NOEXCEPT;
1659 _LIBCPP_INLINE_VISIBILITY
1660 size_type find_last_not_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT;
1661 size_type find_last_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
1662 _LIBCPP_INLINE_VISIBILITY
1663 size_type find_last_not_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT;
1664 _LIBCPP_INLINE_VISIBILITY
1665 size_type find_last_not_of(value_type __c, size_type __pos = npos) const _NOEXCEPT;
1667 _LIBCPP_INLINE_VISIBILITY
1668 int compare(const basic_string& __str) const _NOEXCEPT;
1669 _LIBCPP_INLINE_VISIBILITY
1670 int compare(size_type __pos1, size_type __n1, const basic_string& __str) const;
1671 int compare(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos) const;
1672 int compare(const value_type* __s) const _NOEXCEPT;
1673 int compare(size_type __pos1, size_type __n1, const value_type* __s) const;
1674 int compare(size_type __pos1, size_type __n1, const value_type* __s, size_type __n2) const;
1676 _LIBCPP_INLINE_VISIBILITY bool __invariants() const;
1678 _LIBCPP_INLINE_VISIBILITY
1679 bool __is_long() const _NOEXCEPT
1680 {return bool(__r_.first().__s.__size_ & __short_mask);}
1682 #if _LIBCPP_DEBUG_LEVEL >= 2
1684 bool __dereferenceable(const const_iterator* __i) const;
1685 bool __decrementable(const const_iterator* __i) const;
1686 bool __addable(const const_iterator* __i, ptrdiff_t __n) const;
1687 bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const;
1689 #endif // _LIBCPP_DEBUG_LEVEL >= 2
1692 _LIBCPP_INLINE_VISIBILITY
1693 allocator_type& __alloc() _NOEXCEPT
1694 {return __r_.second();}
1695 _LIBCPP_INLINE_VISIBILITY
1696 const allocator_type& __alloc() const _NOEXCEPT
1697 {return __r_.second();}
1699 #ifdef _LIBCPP_ALTERNATE_STRING_LAYOUT
1701 _LIBCPP_INLINE_VISIBILITY
1702 void __set_short_size(size_type __s) _NOEXCEPT
1703 # if _LIBCPP_BIG_ENDIAN
1704 {__r_.first().__s.__size_ = (unsigned char)(__s << 1);}
1706 {__r_.first().__s.__size_ = (unsigned char)(__s);}
1709 _LIBCPP_INLINE_VISIBILITY
1710 size_type __get_short_size() const _NOEXCEPT
1711 # if _LIBCPP_BIG_ENDIAN
1712 {return __r_.first().__s.__size_ >> 1;}
1714 {return __r_.first().__s.__size_;}
1717 #else // _LIBCPP_ALTERNATE_STRING_LAYOUT
1719 _LIBCPP_INLINE_VISIBILITY
1720 void __set_short_size(size_type __s) _NOEXCEPT
1721 # if _LIBCPP_BIG_ENDIAN
1722 {__r_.first().__s.__size_ = (unsigned char)(__s);}
1724 {__r_.first().__s.__size_ = (unsigned char)(__s << 1);}
1727 _LIBCPP_INLINE_VISIBILITY
1728 size_type __get_short_size() const _NOEXCEPT
1729 # if _LIBCPP_BIG_ENDIAN
1730 {return __r_.first().__s.__size_;}
1732 {return __r_.first().__s.__size_ >> 1;}
1735 #endif // _LIBCPP_ALTERNATE_STRING_LAYOUT
1737 _LIBCPP_INLINE_VISIBILITY
1738 void __set_long_size(size_type __s) _NOEXCEPT
1739 {__r_.first().__l.__size_ = __s;}
1740 _LIBCPP_INLINE_VISIBILITY
1741 size_type __get_long_size() const _NOEXCEPT
1742 {return __r_.first().__l.__size_;}
1743 _LIBCPP_INLINE_VISIBILITY
1744 void __set_size(size_type __s) _NOEXCEPT
1745 {if (__is_long()) __set_long_size(__s); else __set_short_size(__s);}
1747 _LIBCPP_INLINE_VISIBILITY
1748 void __set_long_cap(size_type __s) _NOEXCEPT
1749 {__r_.first().__l.__cap_ = __long_mask | __s;}
1750 _LIBCPP_INLINE_VISIBILITY
1751 size_type __get_long_cap() const _NOEXCEPT
1752 {return __r_.first().__l.__cap_ & size_type(~__long_mask);}
1754 _LIBCPP_INLINE_VISIBILITY
1755 void __set_long_pointer(pointer __p) _NOEXCEPT
1756 {__r_.first().__l.__data_ = __p;}
1757 _LIBCPP_INLINE_VISIBILITY
1758 pointer __get_long_pointer() _NOEXCEPT
1759 {return __r_.first().__l.__data_;}
1760 _LIBCPP_INLINE_VISIBILITY
1761 const_pointer __get_long_pointer() const _NOEXCEPT
1762 {return __r_.first().__l.__data_;}
1763 _LIBCPP_INLINE_VISIBILITY
1764 pointer __get_short_pointer() _NOEXCEPT
1765 {return pointer_traits<pointer>::pointer_to(__r_.first().__s.__data_[0]);}
1766 _LIBCPP_INLINE_VISIBILITY
1767 const_pointer __get_short_pointer() const _NOEXCEPT
1768 {return pointer_traits<const_pointer>::pointer_to(__r_.first().__s.__data_[0]);}
1769 _LIBCPP_INLINE_VISIBILITY
1770 pointer __get_pointer() _NOEXCEPT
1771 {return __is_long() ? __get_long_pointer() : __get_short_pointer();}
1772 _LIBCPP_INLINE_VISIBILITY
1773 const_pointer __get_pointer() const _NOEXCEPT
1774 {return __is_long() ? __get_long_pointer() : __get_short_pointer();}
1776 _LIBCPP_INLINE_VISIBILITY
1777 void __zero() _NOEXCEPT
1779 size_type (&__a)[__n_words] = __r_.first().__r.__words;
1780 for (unsigned __i = 0; __i < __n_words; ++__i)
1784 template <size_type __a> static
1785 _LIBCPP_INLINE_VISIBILITY
1786 size_type __align_it(size_type __s) _NOEXCEPT
1787 {return __s + (__a-1) & ~(__a-1);}
1788 enum {__alignment = 16};
1789 static _LIBCPP_INLINE_VISIBILITY
1790 size_type __recommend(size_type __s) _NOEXCEPT
1791 {return (__s < __min_cap ? __min_cap :
1792 __align_it<sizeof(value_type) < __alignment ?
1793 __alignment/sizeof(value_type) : 1 > (__s+1)) - 1;}
1795 void __init(const value_type* __s, size_type __sz, size_type __reserve);
1796 void __init(const value_type* __s, size_type __sz);
1797 void __init(size_type __n, value_type __c);
1799 template <class _InputIterator>
1802 __is_input_iterator <_InputIterator>::value &&
1803 !__is_forward_iterator<_InputIterator>::value,
1806 __init(_InputIterator __first, _InputIterator __last);
1808 template <class _ForwardIterator>
1811 __is_forward_iterator<_ForwardIterator>::value,
1814 __init(_ForwardIterator __first, _ForwardIterator __last);
1816 void __grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
1817 size_type __n_copy, size_type __n_del, size_type __n_add = 0);
1818 void __grow_by_and_replace(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
1819 size_type __n_copy, size_type __n_del,
1820 size_type __n_add, const value_type* __p_new_stuff);
1822 _LIBCPP_INLINE_VISIBILITY
1823 void __erase_to_end(size_type __pos);
1825 _LIBCPP_INLINE_VISIBILITY
1826 void __copy_assign_alloc(const basic_string& __str)
1827 {__copy_assign_alloc(__str, integral_constant<bool,
1828 __alloc_traits::propagate_on_container_copy_assignment::value>());}
1830 _LIBCPP_INLINE_VISIBILITY
1831 void __copy_assign_alloc(const basic_string& __str, true_type)
1833 if (__alloc() != __str.__alloc())
1838 __alloc() = __str.__alloc();
1841 _LIBCPP_INLINE_VISIBILITY
1842 void __copy_assign_alloc(const basic_string&, false_type) _NOEXCEPT
1845 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1846 _LIBCPP_INLINE_VISIBILITY
1847 void __move_assign(basic_string& __str, false_type)
1848 _NOEXCEPT_(__alloc_traits::is_always_equal::value);
1849 _LIBCPP_INLINE_VISIBILITY
1850 void __move_assign(basic_string& __str, true_type)
1851 #if _LIBCPP_STD_VER > 14
1854 _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value);
1858 _LIBCPP_INLINE_VISIBILITY
1860 __move_assign_alloc(basic_string& __str)
1862 !__alloc_traits::propagate_on_container_move_assignment::value ||
1863 is_nothrow_move_assignable<allocator_type>::value)
1864 {__move_assign_alloc(__str, integral_constant<bool,
1865 __alloc_traits::propagate_on_container_move_assignment::value>());}
1867 _LIBCPP_INLINE_VISIBILITY
1868 void __move_assign_alloc(basic_string& __c, true_type)
1869 _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
1871 __alloc() = _VSTD::move(__c.__alloc());
1874 _LIBCPP_INLINE_VISIBILITY
1875 void __move_assign_alloc(basic_string&, false_type)
1879 _LIBCPP_INLINE_VISIBILITY void __invalidate_all_iterators();
1880 _LIBCPP_INLINE_VISIBILITY void __invalidate_iterators_past(size_type);
1882 friend basic_string operator+<>(const basic_string&, const basic_string&);
1883 friend basic_string operator+<>(const value_type*, const basic_string&);
1884 friend basic_string operator+<>(value_type, const basic_string&);
1885 friend basic_string operator+<>(const basic_string&, const value_type*);
1886 friend basic_string operator+<>(const basic_string&, value_type);
1889 template <class _CharT, class _Traits, class _Allocator>
1890 inline _LIBCPP_INLINE_VISIBILITY
1892 basic_string<_CharT, _Traits, _Allocator>::__invalidate_all_iterators()
1894 #if _LIBCPP_DEBUG_LEVEL >= 2
1895 __get_db()->__invalidate_all(this);
1896 #endif // _LIBCPP_DEBUG_LEVEL >= 2
1899 template <class _CharT, class _Traits, class _Allocator>
1900 inline _LIBCPP_INLINE_VISIBILITY
1902 basic_string<_CharT, _Traits, _Allocator>::__invalidate_iterators_past(size_type
1903 #if _LIBCPP_DEBUG_LEVEL >= 2
1908 #if _LIBCPP_DEBUG_LEVEL >= 2
1909 __c_node* __c = __get_db()->__find_c_and_lock(this);
1912 const_pointer __new_last = __get_pointer() + __pos;
1913 for (__i_node** __p = __c->end_; __p != __c->beg_; )
1916 const_iterator* __i = static_cast<const_iterator*>((*__p)->__i_);
1917 if (__i->base() > __new_last)
1919 (*__p)->__c_ = nullptr;
1920 if (--__c->end_ != __p)
1921 memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*));
1924 __get_db()->unlock();
1926 #endif // _LIBCPP_DEBUG_LEVEL >= 2
1929 template <class _CharT, class _Traits, class _Allocator>
1930 inline _LIBCPP_INLINE_VISIBILITY
1931 basic_string<_CharT, _Traits, _Allocator>::basic_string()
1932 _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
1934 #if _LIBCPP_DEBUG_LEVEL >= 2
1935 __get_db()->__insert_c(this);
1940 template <class _CharT, class _Traits, class _Allocator>
1941 inline _LIBCPP_INLINE_VISIBILITY
1942 basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& __a)
1943 #if _LIBCPP_STD_VER <= 14
1944 _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value)
1950 #if _LIBCPP_DEBUG_LEVEL >= 2
1951 __get_db()->__insert_c(this);
1956 template <class _CharT, class _Traits, class _Allocator>
1958 basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, size_type __sz, size_type __reserve)
1960 if (__reserve > max_size())
1961 this->__throw_length_error();
1963 if (__reserve < __min_cap)
1965 __set_short_size(__sz);
1966 __p = __get_short_pointer();
1970 size_type __cap = __recommend(__reserve);
1971 __p = __alloc_traits::allocate(__alloc(), __cap+1);
1972 __set_long_pointer(__p);
1973 __set_long_cap(__cap+1);
1974 __set_long_size(__sz);
1976 traits_type::copy(_VSTD::__to_raw_pointer(__p), __s, __sz);
1977 traits_type::assign(__p[__sz], value_type());
1980 template <class _CharT, class _Traits, class _Allocator>
1982 basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, size_type __sz)
1984 if (__sz > max_size())
1985 this->__throw_length_error();
1987 if (__sz < __min_cap)
1989 __set_short_size(__sz);
1990 __p = __get_short_pointer();
1994 size_type __cap = __recommend(__sz);
1995 __p = __alloc_traits::allocate(__alloc(), __cap+1);
1996 __set_long_pointer(__p);
1997 __set_long_cap(__cap+1);
1998 __set_long_size(__sz);
2000 traits_type::copy(_VSTD::__to_raw_pointer(__p), __s, __sz);
2001 traits_type::assign(__p[__sz], value_type());
2004 template <class _CharT, class _Traits, class _Allocator>
2005 inline _LIBCPP_INLINE_VISIBILITY
2006 basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s)
2008 _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*) detected nullptr");
2009 __init(__s, traits_type::length(__s));
2010 #if _LIBCPP_DEBUG_LEVEL >= 2
2011 __get_db()->__insert_c(this);
2015 template <class _CharT, class _Traits, class _Allocator>
2016 inline _LIBCPP_INLINE_VISIBILITY
2017 basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s, const allocator_type& __a)
2020 _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*, allocator) detected nullptr");
2021 __init(__s, traits_type::length(__s));
2022 #if _LIBCPP_DEBUG_LEVEL >= 2
2023 __get_db()->__insert_c(this);
2027 template <class _CharT, class _Traits, class _Allocator>
2028 inline _LIBCPP_INLINE_VISIBILITY
2029 basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s, size_type __n)
2031 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n) detected nullptr");
2033 #if _LIBCPP_DEBUG_LEVEL >= 2
2034 __get_db()->__insert_c(this);
2038 template <class _CharT, class _Traits, class _Allocator>
2039 inline _LIBCPP_INLINE_VISIBILITY
2040 basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s, size_type __n, const allocator_type& __a)
2043 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n, allocator) detected nullptr");
2045 #if _LIBCPP_DEBUG_LEVEL >= 2
2046 __get_db()->__insert_c(this);
2050 template <class _CharT, class _Traits, class _Allocator>
2051 basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str)
2052 : __r_(__alloc_traits::select_on_container_copy_construction(__str.__alloc()))
2054 if (!__str.__is_long())
2055 __r_.first().__r = __str.__r_.first().__r;
2057 __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
2058 #if _LIBCPP_DEBUG_LEVEL >= 2
2059 __get_db()->__insert_c(this);
2063 template <class _CharT, class _Traits, class _Allocator>
2064 basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, const allocator_type& __a)
2067 if (!__str.__is_long())
2068 __r_.first().__r = __str.__r_.first().__r;
2070 __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
2071 #if _LIBCPP_DEBUG_LEVEL >= 2
2072 __get_db()->__insert_c(this);
2076 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2078 template <class _CharT, class _Traits, class _Allocator>
2079 inline _LIBCPP_INLINE_VISIBILITY
2080 basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str)
2081 #if _LIBCPP_STD_VER <= 14
2082 _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value)
2086 : __r_(_VSTD::move(__str.__r_))
2089 #if _LIBCPP_DEBUG_LEVEL >= 2
2090 __get_db()->__insert_c(this);
2092 __get_db()->swap(this, &__str);
2096 template <class _CharT, class _Traits, class _Allocator>
2097 inline _LIBCPP_INLINE_VISIBILITY
2098 basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str, const allocator_type& __a)
2101 if (__str.__is_long() && __a != __str.__alloc()) // copy, not move
2102 __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
2105 __r_.first().__r = __str.__r_.first().__r;
2108 #if _LIBCPP_DEBUG_LEVEL >= 2
2109 __get_db()->__insert_c(this);
2111 __get_db()->swap(this, &__str);
2115 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2117 template <class _CharT, class _Traits, class _Allocator>
2119 basic_string<_CharT, _Traits, _Allocator>::__init(size_type __n, value_type __c)
2121 if (__n > max_size())
2122 this->__throw_length_error();
2124 if (__n < __min_cap)
2126 __set_short_size(__n);
2127 __p = __get_short_pointer();
2131 size_type __cap = __recommend(__n);
2132 __p = __alloc_traits::allocate(__alloc(), __cap+1);
2133 __set_long_pointer(__p);
2134 __set_long_cap(__cap+1);
2135 __set_long_size(__n);
2137 traits_type::assign(_VSTD::__to_raw_pointer(__p), __n, __c);
2138 traits_type::assign(__p[__n], value_type());
2141 template <class _CharT, class _Traits, class _Allocator>
2142 inline _LIBCPP_INLINE_VISIBILITY
2143 basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, value_type __c)
2146 #if _LIBCPP_DEBUG_LEVEL >= 2
2147 __get_db()->__insert_c(this);
2151 template <class _CharT, class _Traits, class _Allocator>
2152 inline _LIBCPP_INLINE_VISIBILITY
2153 basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, value_type __c, const allocator_type& __a)
2157 #if _LIBCPP_DEBUG_LEVEL >= 2
2158 __get_db()->__insert_c(this);
2162 template <class _CharT, class _Traits, class _Allocator>
2163 basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, size_type __pos, size_type __n,
2164 const allocator_type& __a)
2167 size_type __str_sz = __str.size();
2168 if (__pos > __str_sz)
2169 this->__throw_out_of_range();
2170 __init(__str.data() + __pos, _VSTD::min(__n, __str_sz - __pos));
2171 #if _LIBCPP_DEBUG_LEVEL >= 2
2172 __get_db()->__insert_c(this);
2176 template <class _CharT, class _Traits, class _Allocator>
2177 template <class _InputIterator>
2180 __is_input_iterator <_InputIterator>::value &&
2181 !__is_forward_iterator<_InputIterator>::value,
2184 basic_string<_CharT, _Traits, _Allocator>::__init(_InputIterator __first, _InputIterator __last)
2187 #ifndef _LIBCPP_NO_EXCEPTIONS
2190 #endif // _LIBCPP_NO_EXCEPTIONS
2191 for (; __first != __last; ++__first)
2192 push_back(*__first);
2193 #ifndef _LIBCPP_NO_EXCEPTIONS
2198 __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap());
2201 #endif // _LIBCPP_NO_EXCEPTIONS
2204 template <class _CharT, class _Traits, class _Allocator>
2205 template <class _ForwardIterator>
2208 __is_forward_iterator<_ForwardIterator>::value,
2211 basic_string<_CharT, _Traits, _Allocator>::__init(_ForwardIterator __first, _ForwardIterator __last)
2213 size_type __sz = static_cast<size_type>(_VSTD::distance(__first, __last));
2214 if (__sz > max_size())
2215 this->__throw_length_error();
2217 if (__sz < __min_cap)
2219 __set_short_size(__sz);
2220 __p = __get_short_pointer();
2224 size_type __cap = __recommend(__sz);
2225 __p = __alloc_traits::allocate(__alloc(), __cap+1);
2226 __set_long_pointer(__p);
2227 __set_long_cap(__cap+1);
2228 __set_long_size(__sz);
2230 for (; __first != __last; ++__first, (void) ++__p)
2231 traits_type::assign(*__p, *__first);
2232 traits_type::assign(*__p, value_type());
2235 template <class _CharT, class _Traits, class _Allocator>
2236 template<class _InputIterator>
2237 inline _LIBCPP_INLINE_VISIBILITY
2238 basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last)
2240 __init(__first, __last);
2241 #if _LIBCPP_DEBUG_LEVEL >= 2
2242 __get_db()->__insert_c(this);
2246 template <class _CharT, class _Traits, class _Allocator>
2247 template<class _InputIterator>
2248 inline _LIBCPP_INLINE_VISIBILITY
2249 basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last,
2250 const allocator_type& __a)
2253 __init(__first, __last);
2254 #if _LIBCPP_DEBUG_LEVEL >= 2
2255 __get_db()->__insert_c(this);
2259 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
2261 template <class _CharT, class _Traits, class _Allocator>
2262 inline _LIBCPP_INLINE_VISIBILITY
2263 basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<value_type> __il)
2265 __init(__il.begin(), __il.end());
2266 #if _LIBCPP_DEBUG_LEVEL >= 2
2267 __get_db()->__insert_c(this);
2271 template <class _CharT, class _Traits, class _Allocator>
2272 inline _LIBCPP_INLINE_VISIBILITY
2273 basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<value_type> __il, const allocator_type& __a)
2276 __init(__il.begin(), __il.end());
2277 #if _LIBCPP_DEBUG_LEVEL >= 2
2278 __get_db()->__insert_c(this);
2282 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
2284 template <class _CharT, class _Traits, class _Allocator>
2285 basic_string<_CharT, _Traits, _Allocator>::~basic_string()
2287 #if _LIBCPP_DEBUG_LEVEL >= 2
2288 __get_db()->__erase_c(this);
2291 __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap());
2294 template <class _CharT, class _Traits, class _Allocator>
2296 basic_string<_CharT, _Traits, _Allocator>::__grow_by_and_replace
2297 (size_type __old_cap, size_type __delta_cap, size_type __old_sz,
2298 size_type __n_copy, size_type __n_del, size_type __n_add, const value_type* __p_new_stuff)
2300 size_type __ms = max_size();
2301 if (__delta_cap > __ms - __old_cap - 1)
2302 this->__throw_length_error();
2303 pointer __old_p = __get_pointer();
2304 size_type __cap = __old_cap < __ms / 2 - __alignment ?
2305 __recommend(_VSTD::max(__old_cap + __delta_cap, 2 * __old_cap)) :
2307 pointer __p = __alloc_traits::allocate(__alloc(), __cap+1);
2308 __invalidate_all_iterators();
2310 traits_type::copy(_VSTD::__to_raw_pointer(__p),
2311 _VSTD::__to_raw_pointer(__old_p), __n_copy);
2313 traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy, __p_new_stuff, __n_add);
2314 size_type __sec_cp_sz = __old_sz - __n_del - __n_copy;
2315 if (__sec_cp_sz != 0)
2316 traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy + __n_add,
2317 _VSTD::__to_raw_pointer(__old_p) + __n_copy + __n_del, __sec_cp_sz);
2318 if (__old_cap+1 != __min_cap)
2319 __alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1);
2320 __set_long_pointer(__p);
2321 __set_long_cap(__cap+1);
2322 __old_sz = __n_copy + __n_add + __sec_cp_sz;
2323 __set_long_size(__old_sz);
2324 traits_type::assign(__p[__old_sz], value_type());
2327 template <class _CharT, class _Traits, class _Allocator>
2329 basic_string<_CharT, _Traits, _Allocator>::__grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
2330 size_type __n_copy, size_type __n_del, size_type __n_add)
2332 size_type __ms = max_size();
2333 if (__delta_cap > __ms - __old_cap)
2334 this->__throw_length_error();
2335 pointer __old_p = __get_pointer();
2336 size_type __cap = __old_cap < __ms / 2 - __alignment ?
2337 __recommend(_VSTD::max(__old_cap + __delta_cap, 2 * __old_cap)) :
2339 pointer __p = __alloc_traits::allocate(__alloc(), __cap+1);
2340 __invalidate_all_iterators();
2342 traits_type::copy(_VSTD::__to_raw_pointer(__p),
2343 _VSTD::__to_raw_pointer(__old_p), __n_copy);
2344 size_type __sec_cp_sz = __old_sz - __n_del - __n_copy;
2345 if (__sec_cp_sz != 0)
2346 traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy + __n_add,
2347 _VSTD::__to_raw_pointer(__old_p) + __n_copy + __n_del,
2349 if (__old_cap+1 != __min_cap)
2350 __alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1);
2351 __set_long_pointer(__p);
2352 __set_long_cap(__cap+1);
2357 template <class _CharT, class _Traits, class _Allocator>
2358 basic_string<_CharT, _Traits, _Allocator>&
2359 basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s, size_type __n)
2361 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::assign received nullptr");
2362 size_type __cap = capacity();
2365 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
2366 traits_type::move(__p, __s, __n);
2367 traits_type::assign(__p[__n], value_type());
2369 __invalidate_iterators_past(__n);
2373 size_type __sz = size();
2374 __grow_by_and_replace(__cap, __n - __cap, __sz, 0, __sz, __n, __s);
2379 template <class _CharT, class _Traits, class _Allocator>
2380 basic_string<_CharT, _Traits, _Allocator>&
2381 basic_string<_CharT, _Traits, _Allocator>::assign(size_type __n, value_type __c)
2383 size_type __cap = capacity();
2386 size_type __sz = size();
2387 __grow_by(__cap, __n - __cap, __sz, 0, __sz);
2390 __invalidate_iterators_past(__n);
2391 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
2392 traits_type::assign(__p, __n, __c);
2393 traits_type::assign(__p[__n], value_type());
2398 template <class _CharT, class _Traits, class _Allocator>
2399 basic_string<_CharT, _Traits, _Allocator>&
2400 basic_string<_CharT, _Traits, _Allocator>::operator=(value_type __c)
2405 __p = __get_long_pointer();
2410 __p = __get_short_pointer();
2411 __set_short_size(1);
2413 traits_type::assign(*__p, __c);
2414 traits_type::assign(*++__p, value_type());
2415 __invalidate_iterators_past(1);
2419 template <class _CharT, class _Traits, class _Allocator>
2420 basic_string<_CharT, _Traits, _Allocator>&
2421 basic_string<_CharT, _Traits, _Allocator>::operator=(const basic_string& __str)
2425 __copy_assign_alloc(__str);
2431 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2433 template <class _CharT, class _Traits, class _Allocator>
2434 inline _LIBCPP_INLINE_VISIBILITY
2436 basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, false_type)
2437 _NOEXCEPT_(__alloc_traits::is_always_equal::value)
2439 if (__alloc() != __str.__alloc())
2442 __move_assign(__str, true_type());
2445 template <class _CharT, class _Traits, class _Allocator>
2446 inline _LIBCPP_INLINE_VISIBILITY
2448 basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, true_type)
2449 #if _LIBCPP_STD_VER > 14
2452 _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
2457 __r_.first() = __str.__r_.first();
2458 __move_assign_alloc(__str);
2462 template <class _CharT, class _Traits, class _Allocator>
2463 inline _LIBCPP_INLINE_VISIBILITY
2464 basic_string<_CharT, _Traits, _Allocator>&
2465 basic_string<_CharT, _Traits, _Allocator>::operator=(basic_string&& __str)
2466 _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value))
2468 __move_assign(__str, integral_constant<bool,
2469 __alloc_traits::propagate_on_container_move_assignment::value>());
2475 template <class _CharT, class _Traits, class _Allocator>
2476 template<class _InputIterator>
2479 __is_input_iterator <_InputIterator>::value &&
2480 !__is_forward_iterator<_InputIterator>::value,
2481 basic_string<_CharT, _Traits, _Allocator>&
2483 basic_string<_CharT, _Traits, _Allocator>::assign(_InputIterator __first, _InputIterator __last)
2486 for (; __first != __last; ++__first)
2487 push_back(*__first);
2491 template <class _CharT, class _Traits, class _Allocator>
2492 template<class _ForwardIterator>
2495 __is_forward_iterator<_ForwardIterator>::value,
2496 basic_string<_CharT, _Traits, _Allocator>&
2498 basic_string<_CharT, _Traits, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last)
2500 size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last));
2501 size_type __cap = capacity();
2504 size_type __sz = size();
2505 __grow_by(__cap, __n - __cap, __sz, 0, __sz);
2508 __invalidate_iterators_past(__n);
2509 pointer __p = __get_pointer();
2510 for (; __first != __last; ++__first, ++__p)
2511 traits_type::assign(*__p, *__first);
2512 traits_type::assign(*__p, value_type());
2517 template <class _CharT, class _Traits, class _Allocator>
2518 inline _LIBCPP_INLINE_VISIBILITY
2519 basic_string<_CharT, _Traits, _Allocator>&
2520 basic_string<_CharT, _Traits, _Allocator>::assign(const basic_string& __str)
2522 return assign(__str.data(), __str.size());
2525 template <class _CharT, class _Traits, class _Allocator>
2526 basic_string<_CharT, _Traits, _Allocator>&
2527 basic_string<_CharT, _Traits, _Allocator>::assign(const basic_string& __str, size_type __pos, size_type __n)
2529 size_type __sz = __str.size();
2531 this->__throw_out_of_range();
2532 return assign(__str.data() + __pos, _VSTD::min(__n, __sz - __pos));
2535 template <class _CharT, class _Traits, class _Allocator>
2536 basic_string<_CharT, _Traits, _Allocator>&
2537 basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s)
2539 _LIBCPP_ASSERT(__s != nullptr, "string::assign received nullptr");
2540 return assign(__s, traits_type::length(__s));
2545 template <class _CharT, class _Traits, class _Allocator>
2546 basic_string<_CharT, _Traits, _Allocator>&
2547 basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s, size_type __n)
2549 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::append received nullptr");
2550 size_type __cap = capacity();
2551 size_type __sz = size();
2552 if (__cap - __sz >= __n)
2556 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
2557 traits_type::copy(__p + __sz, __s, __n);
2560 traits_type::assign(__p[__sz], value_type());
2564 __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __sz, 0, __n, __s);
2568 template <class _CharT, class _Traits, class _Allocator>
2569 basic_string<_CharT, _Traits, _Allocator>&
2570 basic_string<_CharT, _Traits, _Allocator>::append(size_type __n, value_type __c)
2574 size_type __cap = capacity();
2575 size_type __sz = size();
2576 if (__cap - __sz < __n)
2577 __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0);
2578 pointer __p = __get_pointer();
2579 traits_type::assign(_VSTD::__to_raw_pointer(__p) + __sz, __n, __c);
2582 traits_type::assign(__p[__sz], value_type());
2587 template <class _CharT, class _Traits, class _Allocator>
2589 basic_string<_CharT, _Traits, _Allocator>::push_back(value_type __c)
2591 bool __is_short = !__is_long();
2596 __cap = __min_cap - 1;
2597 __sz = __get_short_size();
2601 __cap = __get_long_cap() - 1;
2602 __sz = __get_long_size();
2606 __grow_by(__cap, 1, __sz, __sz, 0);
2607 __is_short = !__is_long();
2612 __p = __get_short_pointer() + __sz;
2613 __set_short_size(__sz+1);
2617 __p = __get_long_pointer() + __sz;
2618 __set_long_size(__sz+1);
2620 traits_type::assign(*__p, __c);
2621 traits_type::assign(*++__p, value_type());
2624 template <class _CharT, class _Traits, class _Allocator>
2625 template<class _InputIterator>
2628 __is_input_iterator <_InputIterator>::value &&
2629 !__is_forward_iterator<_InputIterator>::value,
2630 basic_string<_CharT, _Traits, _Allocator>&
2632 basic_string<_CharT, _Traits, _Allocator>::append(_InputIterator __first, _InputIterator __last)
2634 for (; __first != __last; ++__first)
2635 push_back(*__first);
2639 template <class _CharT, class _Traits, class _Allocator>
2640 template<class _ForwardIterator>
2643 __is_forward_iterator<_ForwardIterator>::value,
2644 basic_string<_CharT, _Traits, _Allocator>&
2646 basic_string<_CharT, _Traits, _Allocator>::append(_ForwardIterator __first, _ForwardIterator __last)
2648 size_type __sz = size();
2649 size_type __cap = capacity();
2650 size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last));
2653 if (__cap - __sz < __n)
2654 __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0);
2655 pointer __p = __get_pointer() + __sz;
2656 for (; __first != __last; ++__p, ++__first)
2657 traits_type::assign(*__p, *__first);
2658 traits_type::assign(*__p, value_type());
2659 __set_size(__sz + __n);
2664 template <class _CharT, class _Traits, class _Allocator>
2665 inline _LIBCPP_INLINE_VISIBILITY
2666 basic_string<_CharT, _Traits, _Allocator>&
2667 basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str)
2669 return append(__str.data(), __str.size());
2672 template <class _CharT, class _Traits, class _Allocator>
2673 basic_string<_CharT, _Traits, _Allocator>&
2674 basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str, size_type __pos, size_type __n)
2676 size_type __sz = __str.size();
2678 this->__throw_out_of_range();
2679 return append(__str.data() + __pos, _VSTD::min(__n, __sz - __pos));
2682 template <class _CharT, class _Traits, class _Allocator>
2683 basic_string<_CharT, _Traits, _Allocator>&
2684 basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s)
2686 _LIBCPP_ASSERT(__s != nullptr, "string::append received nullptr");
2687 return append(__s, traits_type::length(__s));
2692 template <class _CharT, class _Traits, class _Allocator>
2693 basic_string<_CharT, _Traits, _Allocator>&
2694 basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s, size_type __n)
2696 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::insert received nullptr");
2697 size_type __sz = size();
2699 this->__throw_out_of_range();
2700 size_type __cap = capacity();
2701 if (__cap - __sz >= __n)
2705 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
2706 size_type __n_move = __sz - __pos;
2709 if (__p + __pos <= __s && __s < __p + __sz)
2711 traits_type::move(__p + __pos + __n, __p + __pos, __n_move);
2713 traits_type::move(__p + __pos, __s, __n);
2716 traits_type::assign(__p[__sz], value_type());
2720 __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s);
2724 template <class _CharT, class _Traits, class _Allocator>
2725 basic_string<_CharT, _Traits, _Allocator>&
2726 basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, size_type __n, value_type __c)
2728 size_type __sz = size();
2730 this->__throw_out_of_range();
2733 size_type __cap = capacity();
2735 if (__cap - __sz >= __n)
2737 __p = _VSTD::__to_raw_pointer(__get_pointer());
2738 size_type __n_move = __sz - __pos;
2740 traits_type::move(__p + __pos + __n, __p + __pos, __n_move);
2744 __grow_by(__cap, __sz + __n - __cap, __sz, __pos, 0, __n);
2745 __p = _VSTD::__to_raw_pointer(__get_long_pointer());
2747 traits_type::assign(__p + __pos, __n, __c);
2750 traits_type::assign(__p[__sz], value_type());
2755 template <class _CharT, class _Traits, class _Allocator>
2756 template<class _InputIterator>
2759 __is_input_iterator <_InputIterator>::value &&
2760 !__is_forward_iterator<_InputIterator>::value,
2761 typename basic_string<_CharT, _Traits, _Allocator>::iterator
2763 basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _InputIterator __first, _InputIterator __last)
2765 #if _LIBCPP_DEBUG_LEVEL >= 2
2766 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
2767 "string::insert(iterator, range) called with an iterator not"
2768 " referring to this string");
2770 size_type __old_sz = size();
2771 difference_type __ip = __pos - begin();
2772 for (; __first != __last; ++__first)
2773 push_back(*__first);
2774 pointer __p = __get_pointer();
2775 _VSTD::rotate(__p + __ip, __p + __old_sz, __p + size());
2776 #if _LIBCPP_DEBUG_LEVEL >= 2
2777 return iterator(this, __p + __ip);
2779 return iterator(__p + __ip);
2783 template <class _CharT, class _Traits, class _Allocator>
2784 template<class _ForwardIterator>
2787 __is_forward_iterator<_ForwardIterator>::value,
2788 typename basic_string<_CharT, _Traits, _Allocator>::iterator
2790 basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last)
2792 #if _LIBCPP_DEBUG_LEVEL >= 2
2793 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
2794 "string::insert(iterator, range) called with an iterator not"
2795 " referring to this string");
2797 size_type __ip = static_cast<size_type>(__pos - begin());
2798 size_type __sz = size();
2799 size_type __cap = capacity();
2800 size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last));
2804 if (__cap - __sz >= __n)
2806 __p = _VSTD::__to_raw_pointer(__get_pointer());
2807 size_type __n_move = __sz - __ip;
2809 traits_type::move(__p + __ip + __n, __p + __ip, __n_move);
2813 __grow_by(__cap, __sz + __n - __cap, __sz, __ip, 0, __n);
2814 __p = _VSTD::__to_raw_pointer(__get_long_pointer());
2818 traits_type::assign(__p[__sz], value_type());
2819 for (__p += __ip; __first != __last; ++__p, ++__first)
2820 traits_type::assign(*__p, *__first);
2822 return begin() + __ip;
2825 template <class _CharT, class _Traits, class _Allocator>
2826 inline _LIBCPP_INLINE_VISIBILITY
2827 basic_string<_CharT, _Traits, _Allocator>&
2828 basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str)
2830 return insert(__pos1, __str.data(), __str.size());
2833 template <class _CharT, class _Traits, class _Allocator>
2834 basic_string<_CharT, _Traits, _Allocator>&
2835 basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str,
2836 size_type __pos2, size_type __n)
2838 size_type __str_sz = __str.size();
2839 if (__pos2 > __str_sz)
2840 this->__throw_out_of_range();
2841 return insert(__pos1, __str.data() + __pos2, _VSTD::min(__n, __str_sz - __pos2));
2844 template <class _CharT, class _Traits, class _Allocator>
2845 basic_string<_CharT, _Traits, _Allocator>&
2846 basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s)
2848 _LIBCPP_ASSERT(__s != nullptr, "string::insert received nullptr");
2849 return insert(__pos, __s, traits_type::length(__s));
2852 template <class _CharT, class _Traits, class _Allocator>
2853 typename basic_string<_CharT, _Traits, _Allocator>::iterator
2854 basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, value_type __c)
2856 size_type __ip = static_cast<size_type>(__pos - begin());
2857 size_type __sz = size();
2858 size_type __cap = capacity();
2862 __grow_by(__cap, 1, __sz, __ip, 0, 1);
2863 __p = _VSTD::__to_raw_pointer(__get_long_pointer());
2867 __p = _VSTD::__to_raw_pointer(__get_pointer());
2868 size_type __n_move = __sz - __ip;
2870 traits_type::move(__p + __ip + 1, __p + __ip, __n_move);
2872 traits_type::assign(__p[__ip], __c);
2873 traits_type::assign(__p[++__sz], value_type());
2875 return begin() + static_cast<difference_type>(__ip);
2878 template <class _CharT, class _Traits, class _Allocator>
2879 inline _LIBCPP_INLINE_VISIBILITY
2880 typename basic_string<_CharT, _Traits, _Allocator>::iterator
2881 basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, size_type __n, value_type __c)
2883 #if _LIBCPP_DEBUG_LEVEL >= 2
2884 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
2885 "string::insert(iterator, n, value) called with an iterator not"
2886 " referring to this string");
2888 difference_type __p = __pos - begin();
2889 insert(static_cast<size_type>(__p), __n, __c);
2890 return begin() + __p;
2895 template <class _CharT, class _Traits, class _Allocator>
2896 basic_string<_CharT, _Traits, _Allocator>&
2897 basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2)
2899 _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::replace received nullptr");
2900 size_type __sz = size();
2902 this->__throw_out_of_range();
2903 __n1 = _VSTD::min(__n1, __sz - __pos);
2904 size_type __cap = capacity();
2905 if (__cap - __sz + __n1 >= __n2)
2907 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
2910 size_type __n_move = __sz - __pos - __n1;
2915 traits_type::move(__p + __pos, __s, __n2);
2916 traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move);
2919 if (__p + __pos < __s && __s < __p + __sz)
2921 if (__p + __pos + __n1 <= __s)
2923 else // __p + __pos < __s < __p + __pos + __n1
2925 traits_type::move(__p + __pos, __s, __n1);
2932 traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move);
2935 traits_type::move(__p + __pos, __s, __n2);
2937 __sz += __n2 - __n1;
2939 __invalidate_iterators_past(__sz);
2940 traits_type::assign(__p[__sz], value_type());
2943 __grow_by_and_replace(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2, __s);
2947 template <class _CharT, class _Traits, class _Allocator>
2948 basic_string<_CharT, _Traits, _Allocator>&
2949 basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, size_type __n2, value_type __c)
2951 size_type __sz = size();
2953 this->__throw_out_of_range();
2954 __n1 = _VSTD::min(__n1, __sz - __pos);
2955 size_type __cap = capacity();
2957 if (__cap - __sz + __n1 >= __n2)
2959 __p = _VSTD::__to_raw_pointer(__get_pointer());
2962 size_type __n_move = __sz - __pos - __n1;
2964 traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move);
2969 __grow_by(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2);
2970 __p = _VSTD::__to_raw_pointer(__get_long_pointer());
2972 traits_type::assign(__p + __pos, __n2, __c);
2973 __sz += __n2 - __n1;
2975 __invalidate_iterators_past(__sz);
2976 traits_type::assign(__p[__sz], value_type());
2980 template <class _CharT, class _Traits, class _Allocator>
2981 template<class _InputIterator>
2984 __is_input_iterator<_InputIterator>::value,
2985 basic_string<_CharT, _Traits, _Allocator>&
2987 basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2,
2988 _InputIterator __j1, _InputIterator __j2)
2990 for (; true; ++__i1, ++__j1)
2995 insert(__i1, __j1, __j2);
3003 traits_type::assign(const_cast<value_type&>(*__i1), *__j1);
3008 template <class _CharT, class _Traits, class _Allocator>
3009 inline _LIBCPP_INLINE_VISIBILITY
3010 basic_string<_CharT, _Traits, _Allocator>&
3011 basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str)
3013 return replace(__pos1, __n1, __str.data(), __str.size());
3016 template <class _CharT, class _Traits, class _Allocator>
3017 basic_string<_CharT, _Traits, _Allocator>&
3018 basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str,
3019 size_type __pos2, size_type __n2)
3021 size_type __str_sz = __str.size();
3022 if (__pos2 > __str_sz)
3023 this->__throw_out_of_range();
3024 return replace(__pos1, __n1, __str.data() + __pos2, _VSTD::min(__n2, __str_sz - __pos2));
3027 template <class _CharT, class _Traits, class _Allocator>
3028 basic_string<_CharT, _Traits, _Allocator>&
3029 basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s)
3031 _LIBCPP_ASSERT(__s != nullptr, "string::replace received nullptr");
3032 return replace(__pos, __n1, __s, traits_type::length(__s));
3035 template <class _CharT, class _Traits, class _Allocator>
3036 inline _LIBCPP_INLINE_VISIBILITY
3037 basic_string<_CharT, _Traits, _Allocator>&
3038 basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const basic_string& __str)
3040 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1),
3041 __str.data(), __str.size());
3044 template <class _CharT, class _Traits, class _Allocator>
3045 inline _LIBCPP_INLINE_VISIBILITY
3046 basic_string<_CharT, _Traits, _Allocator>&
3047 basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n)
3049 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __s, __n);
3052 template <class _CharT, class _Traits, class _Allocator>
3053 inline _LIBCPP_INLINE_VISIBILITY
3054 basic_string<_CharT, _Traits, _Allocator>&
3055 basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s)
3057 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __s);
3060 template <class _CharT, class _Traits, class _Allocator>
3061 inline _LIBCPP_INLINE_VISIBILITY
3062 basic_string<_CharT, _Traits, _Allocator>&
3063 basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c)
3065 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __n, __c);
3070 template <class _CharT, class _Traits, class _Allocator>
3071 basic_string<_CharT, _Traits, _Allocator>&
3072 basic_string<_CharT, _Traits, _Allocator>::erase(size_type __pos, size_type __n)
3074 size_type __sz = size();
3076 this->__throw_out_of_range();
3079 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
3080 __n = _VSTD::min(__n, __sz - __pos);
3081 size_type __n_move = __sz - __pos - __n;
3083 traits_type::move(__p + __pos, __p + __pos + __n, __n_move);
3086 __invalidate_iterators_past(__sz);
3087 traits_type::assign(__p[__sz], value_type());
3092 template <class _CharT, class _Traits, class _Allocator>
3093 inline _LIBCPP_INLINE_VISIBILITY
3094 typename basic_string<_CharT, _Traits, _Allocator>::iterator
3095 basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __pos)
3097 #if _LIBCPP_DEBUG_LEVEL >= 2
3098 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
3099 "string::erase(iterator) called with an iterator not"
3100 " referring to this string");
3102 _LIBCPP_ASSERT(__pos != end(),
3103 "string::erase(iterator) called with a non-dereferenceable iterator");
3104 iterator __b = begin();
3105 size_type __r = static_cast<size_type>(__pos - __b);
3107 return __b + static_cast<difference_type>(__r);
3110 template <class _CharT, class _Traits, class _Allocator>
3111 inline _LIBCPP_INLINE_VISIBILITY
3112 typename basic_string<_CharT, _Traits, _Allocator>::iterator
3113 basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __first, const_iterator __last)
3115 #if _LIBCPP_DEBUG_LEVEL >= 2
3116 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this,
3117 "string::erase(iterator, iterator) called with an iterator not"
3118 " referring to this string");
3120 _LIBCPP_ASSERT(__first <= __last, "string::erase(first, last) called with invalid range");
3121 iterator __b = begin();
3122 size_type __r = static_cast<size_type>(__first - __b);
3123 erase(__r, static_cast<size_type>(__last - __first));
3124 return __b + static_cast<difference_type>(__r);
3127 template <class _CharT, class _Traits, class _Allocator>
3128 inline _LIBCPP_INLINE_VISIBILITY
3130 basic_string<_CharT, _Traits, _Allocator>::pop_back()
3132 _LIBCPP_ASSERT(!empty(), "string::pop_back(): string is already empty");
3136 __sz = __get_long_size() - 1;
3137 __set_long_size(__sz);
3138 traits_type::assign(*(__get_long_pointer() + __sz), value_type());
3142 __sz = __get_short_size() - 1;
3143 __set_short_size(__sz);
3144 traits_type::assign(*(__get_short_pointer() + __sz), value_type());
3146 __invalidate_iterators_past(__sz);
3149 template <class _CharT, class _Traits, class _Allocator>
3150 inline _LIBCPP_INLINE_VISIBILITY
3152 basic_string<_CharT, _Traits, _Allocator>::clear() _NOEXCEPT
3154 __invalidate_all_iterators();
3157 traits_type::assign(*__get_long_pointer(), value_type());
3162 traits_type::assign(*__get_short_pointer(), value_type());
3163 __set_short_size(0);
3167 template <class _CharT, class _Traits, class _Allocator>
3168 inline _LIBCPP_INLINE_VISIBILITY
3170 basic_string<_CharT, _Traits, _Allocator>::__erase_to_end(size_type __pos)
3174 traits_type::assign(*(__get_long_pointer() + __pos), value_type());
3175 __set_long_size(__pos);
3179 traits_type::assign(*(__get_short_pointer() + __pos), value_type());
3180 __set_short_size(__pos);
3182 __invalidate_iterators_past(__pos);
3185 template <class _CharT, class _Traits, class _Allocator>
3187 basic_string<_CharT, _Traits, _Allocator>::resize(size_type __n, value_type __c)
3189 size_type __sz = size();
3191 append(__n - __sz, __c);
3193 __erase_to_end(__n);
3196 template <class _CharT, class _Traits, class _Allocator>
3197 inline _LIBCPP_INLINE_VISIBILITY
3198 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3199 basic_string<_CharT, _Traits, _Allocator>::max_size() const _NOEXCEPT
3201 size_type __m = __alloc_traits::max_size(__alloc());
3202 #if _LIBCPP_BIG_ENDIAN
3203 return (__m <= ~__long_mask ? __m : __m/2) - __alignment;
3205 return __m - __alignment;
3209 template <class _CharT, class _Traits, class _Allocator>
3211 basic_string<_CharT, _Traits, _Allocator>::reserve(size_type __res_arg)
3213 if (__res_arg > max_size())
3214 this->__throw_length_error();
3215 size_type __cap = capacity();
3216 size_type __sz = size();
3217 __res_arg = _VSTD::max(__res_arg, __sz);
3218 __res_arg = __recommend(__res_arg);
3219 if (__res_arg != __cap)
3221 pointer __new_data, __p;
3222 bool __was_long, __now_long;
3223 if (__res_arg == __min_cap - 1)
3227 __new_data = __get_short_pointer();
3228 __p = __get_long_pointer();
3232 if (__res_arg > __cap)
3233 __new_data = __alloc_traits::allocate(__alloc(), __res_arg+1);
3236 #ifndef _LIBCPP_NO_EXCEPTIONS
3239 #endif // _LIBCPP_NO_EXCEPTIONS
3240 __new_data = __alloc_traits::allocate(__alloc(), __res_arg+1);
3241 #ifndef _LIBCPP_NO_EXCEPTIONS
3247 #else // _LIBCPP_NO_EXCEPTIONS
3248 if (__new_data == nullptr)
3250 #endif // _LIBCPP_NO_EXCEPTIONS
3253 __was_long = __is_long();
3254 __p = __get_pointer();
3256 traits_type::copy(_VSTD::__to_raw_pointer(__new_data),
3257 _VSTD::__to_raw_pointer(__p), size()+1);
3259 __alloc_traits::deallocate(__alloc(), __p, __cap+1);
3262 __set_long_cap(__res_arg+1);
3263 __set_long_size(__sz);
3264 __set_long_pointer(__new_data);
3267 __set_short_size(__sz);
3268 __invalidate_all_iterators();
3272 template <class _CharT, class _Traits, class _Allocator>
3273 inline _LIBCPP_INLINE_VISIBILITY
3274 typename basic_string<_CharT, _Traits, _Allocator>::const_reference
3275 basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) const
3277 _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds");
3278 return *(data() + __pos);
3281 template <class _CharT, class _Traits, class _Allocator>
3282 inline _LIBCPP_INLINE_VISIBILITY
3283 typename basic_string<_CharT, _Traits, _Allocator>::reference
3284 basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos)
3286 _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds");
3287 return *(__get_pointer() + __pos);
3290 template <class _CharT, class _Traits, class _Allocator>
3291 typename basic_string<_CharT, _Traits, _Allocator>::const_reference
3292 basic_string<_CharT, _Traits, _Allocator>::at(size_type __n) const
3295 this->__throw_out_of_range();
3296 return (*this)[__n];
3299 template <class _CharT, class _Traits, class _Allocator>
3300 typename basic_string<_CharT, _Traits, _Allocator>::reference
3301 basic_string<_CharT, _Traits, _Allocator>::at(size_type __n)
3304 this->__throw_out_of_range();
3305 return (*this)[__n];
3308 template <class _CharT, class _Traits, class _Allocator>
3309 inline _LIBCPP_INLINE_VISIBILITY
3310 typename basic_string<_CharT, _Traits, _Allocator>::reference
3311 basic_string<_CharT, _Traits, _Allocator>::front()
3313 _LIBCPP_ASSERT(!empty(), "string::front(): string is empty");
3314 return *__get_pointer();
3317 template <class _CharT, class _Traits, class _Allocator>
3318 inline _LIBCPP_INLINE_VISIBILITY
3319 typename basic_string<_CharT, _Traits, _Allocator>::const_reference
3320 basic_string<_CharT, _Traits, _Allocator>::front() const
3322 _LIBCPP_ASSERT(!empty(), "string::front(): string is empty");
3326 template <class _CharT, class _Traits, class _Allocator>
3327 inline _LIBCPP_INLINE_VISIBILITY
3328 typename basic_string<_CharT, _Traits, _Allocator>::reference
3329 basic_string<_CharT, _Traits, _Allocator>::back()
3331 _LIBCPP_ASSERT(!empty(), "string::back(): string is empty");
3332 return *(__get_pointer() + size() - 1);
3335 template <class _CharT, class _Traits, class _Allocator>
3336 inline _LIBCPP_INLINE_VISIBILITY
3337 typename basic_string<_CharT, _Traits, _Allocator>::const_reference
3338 basic_string<_CharT, _Traits, _Allocator>::back() const
3340 _LIBCPP_ASSERT(!empty(), "string::back(): string is empty");
3341 return *(data() + size() - 1);
3344 template <class _CharT, class _Traits, class _Allocator>
3345 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3346 basic_string<_CharT, _Traits, _Allocator>::copy(value_type* __s, size_type __n, size_type __pos) const
3348 size_type __sz = size();
3350 this->__throw_out_of_range();
3351 size_type __rlen = _VSTD::min(__n, __sz - __pos);
3352 traits_type::copy(__s, data() + __pos, __rlen);
3356 template <class _CharT, class _Traits, class _Allocator>
3357 inline _LIBCPP_INLINE_VISIBILITY
3358 basic_string<_CharT, _Traits, _Allocator>
3359 basic_string<_CharT, _Traits, _Allocator>::substr(size_type __pos, size_type __n) const
3361 return basic_string(*this, __pos, __n, __alloc());
3364 template <class _CharT, class _Traits, class _Allocator>
3365 inline _LIBCPP_INLINE_VISIBILITY
3367 basic_string<_CharT, _Traits, _Allocator>::swap(basic_string& __str)
3368 #if _LIBCPP_STD_VER >= 14
3371 _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value ||
3372 __is_nothrow_swappable<allocator_type>::value)
3375 #if _LIBCPP_DEBUG_LEVEL >= 2
3377 __get_db()->__invalidate_all(this);
3378 if (!__str.__is_long())
3379 __get_db()->__invalidate_all(&__str);
3380 __get_db()->swap(this, &__str);
3382 _VSTD::swap(__r_.first(), __str.__r_.first());
3383 __swap_allocator(__alloc(), __str.__alloc());
3388 template <class _Traits>
3389 struct _LIBCPP_HIDDEN __traits_eq
3391 typedef typename _Traits::char_type char_type;
3392 _LIBCPP_INLINE_VISIBILITY
3393 bool operator()(const char_type& __x, const char_type& __y) _NOEXCEPT
3394 {return _Traits::eq(__x, __y);}
3397 template<class _CharT, class _Traits, class _Allocator>
3398 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3399 basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s,
3401 size_type __n) const _NOEXCEPT
3403 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find(): received nullptr");
3404 return _VSTD::__str_find<value_type, size_type, traits_type, npos>
3405 (data(), size(), __s, __pos, __n);
3408 template<class _CharT, class _Traits, class _Allocator>
3409 inline _LIBCPP_INLINE_VISIBILITY
3410 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3411 basic_string<_CharT, _Traits, _Allocator>::find(const basic_string& __str,
3412 size_type __pos) const _NOEXCEPT
3414 return _VSTD::__str_find<value_type, size_type, traits_type, npos>
3415 (data(), size(), __str.data(), __pos, __str.size());
3418 template<class _CharT, class _Traits, class _Allocator>
3419 inline _LIBCPP_INLINE_VISIBILITY
3420 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3421 basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s,
3422 size_type __pos) const _NOEXCEPT
3424 _LIBCPP_ASSERT(__s != nullptr, "string::find(): received nullptr");
3425 return _VSTD::__str_find<value_type, size_type, traits_type, npos>
3426 (data(), size(), __s, __pos, traits_type::length(__s));
3429 template<class _CharT, class _Traits, class _Allocator>
3430 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3431 basic_string<_CharT, _Traits, _Allocator>::find(value_type __c,
3432 size_type __pos) const _NOEXCEPT
3434 return _VSTD::__str_find<value_type, size_type, traits_type, npos>
3435 (data(), size(), __c, __pos);
3440 template<class _CharT, class _Traits, class _Allocator>
3441 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3442 basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s,
3444 size_type __n) const _NOEXCEPT
3446 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::rfind(): received nullptr");
3447 return _VSTD::__str_rfind<value_type, size_type, traits_type, npos>
3448 (data(), size(), __s, __pos, __n);
3451 template<class _CharT, class _Traits, class _Allocator>
3452 inline _LIBCPP_INLINE_VISIBILITY
3453 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3454 basic_string<_CharT, _Traits, _Allocator>::rfind(const basic_string& __str,
3455 size_type __pos) const _NOEXCEPT
3457 return _VSTD::__str_rfind<value_type, size_type, traits_type, npos>
3458 (data(), size(), __str.data(), __pos, __str.size());
3461 template<class _CharT, class _Traits, class _Allocator>
3462 inline _LIBCPP_INLINE_VISIBILITY
3463 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3464 basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s,
3465 size_type __pos) const _NOEXCEPT
3467 _LIBCPP_ASSERT(__s != nullptr, "string::rfind(): received nullptr");
3468 return _VSTD::__str_rfind<value_type, size_type, traits_type, npos>
3469 (data(), size(), __s, __pos, traits_type::length(__s));
3472 template<class _CharT, class _Traits, class _Allocator>
3473 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3474 basic_string<_CharT, _Traits, _Allocator>::rfind(value_type __c,
3475 size_type __pos) const _NOEXCEPT
3477 return _VSTD::__str_rfind<value_type, size_type, traits_type, npos>
3478 (data(), size(), __c, __pos);
3483 template<class _CharT, class _Traits, class _Allocator>
3484 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3485 basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s,
3487 size_type __n) const _NOEXCEPT
3489 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_of(): received nullptr");
3490 return _VSTD::__str_find_first_of<value_type, size_type, traits_type, npos>
3491 (data(), size(), __s, __pos, __n);
3494 template<class _CharT, class _Traits, class _Allocator>
3495 inline _LIBCPP_INLINE_VISIBILITY
3496 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3497 basic_string<_CharT, _Traits, _Allocator>::find_first_of(const basic_string& __str,
3498 size_type __pos) const _NOEXCEPT
3500 return _VSTD::__str_find_first_of<value_type, size_type, traits_type, npos>
3501 (data(), size(), __str.data(), __pos, __str.size());
3504 template<class _CharT, class _Traits, class _Allocator>
3505 inline _LIBCPP_INLINE_VISIBILITY
3506 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3507 basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s,
3508 size_type __pos) const _NOEXCEPT
3510 _LIBCPP_ASSERT(__s != nullptr, "string::find_first_of(): received nullptr");
3511 return _VSTD::__str_find_first_of<value_type, size_type, traits_type, npos>
3512 (data(), size(), __s, __pos, traits_type::length(__s));
3515 template<class _CharT, class _Traits, class _Allocator>
3516 inline _LIBCPP_INLINE_VISIBILITY
3517 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3518 basic_string<_CharT, _Traits, _Allocator>::find_first_of(value_type __c,
3519 size_type __pos) const _NOEXCEPT
3521 return find(__c, __pos);
3526 template<class _CharT, class _Traits, class _Allocator>
3527 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3528 basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s,
3530 size_type __n) const _NOEXCEPT
3532 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_of(): received nullptr");
3533 return _VSTD::__str_find_last_of<value_type, size_type, traits_type, npos>
3534 (data(), size(), __s, __pos, __n);
3537 template<class _CharT, class _Traits, class _Allocator>
3538 inline _LIBCPP_INLINE_VISIBILITY
3539 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3540 basic_string<_CharT, _Traits, _Allocator>::find_last_of(const basic_string& __str,
3541 size_type __pos) const _NOEXCEPT
3543 return _VSTD::__str_find_last_of<value_type, size_type, traits_type, npos>
3544 (data(), size(), __str.data(), __pos, __str.size());
3547 template<class _CharT, class _Traits, class _Allocator>
3548 inline _LIBCPP_INLINE_VISIBILITY
3549 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3550 basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s,
3551 size_type __pos) const _NOEXCEPT
3553 _LIBCPP_ASSERT(__s != nullptr, "string::find_last_of(): received nullptr");
3554 return _VSTD::__str_find_last_of<value_type, size_type, traits_type, npos>
3555 (data(), size(), __s, __pos, traits_type::length(__s));
3558 template<class _CharT, class _Traits, class _Allocator>
3559 inline _LIBCPP_INLINE_VISIBILITY
3560 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3561 basic_string<_CharT, _Traits, _Allocator>::find_last_of(value_type __c,
3562 size_type __pos) const _NOEXCEPT
3564 return rfind(__c, __pos);
3567 // find_first_not_of
3569 template<class _CharT, class _Traits, class _Allocator>
3570 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3571 basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s,
3573 size_type __n) const _NOEXCEPT
3575 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_not_of(): received nullptr");
3576 return _VSTD::__str_find_first_not_of<value_type, size_type, traits_type, npos>
3577 (data(), size(), __s, __pos, __n);
3580 template<class _CharT, class _Traits, class _Allocator>
3581 inline _LIBCPP_INLINE_VISIBILITY
3582 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3583 basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const basic_string& __str,
3584 size_type __pos) const _NOEXCEPT
3586 return _VSTD::__str_find_first_not_of<value_type, size_type, traits_type, npos>
3587 (data(), size(), __str.data(), __pos, __str.size());
3590 template<class _CharT, class _Traits, class _Allocator>
3591 inline _LIBCPP_INLINE_VISIBILITY
3592 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3593 basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s,
3594 size_type __pos) const _NOEXCEPT
3596 _LIBCPP_ASSERT(__s != nullptr, "string::find_first_not_of(): received nullptr");
3597 return _VSTD::__str_find_first_not_of<value_type, size_type, traits_type, npos>
3598 (data(), size(), __s, __pos, traits_type::length(__s));
3601 template<class _CharT, class _Traits, class _Allocator>
3602 inline _LIBCPP_INLINE_VISIBILITY
3603 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3604 basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(value_type __c,
3605 size_type __pos) const _NOEXCEPT
3607 return _VSTD::__str_find_first_not_of<value_type, size_type, traits_type, npos>
3608 (data(), size(), __c, __pos);
3613 template<class _CharT, class _Traits, class _Allocator>
3614 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3615 basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s,
3617 size_type __n) const _NOEXCEPT
3619 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_not_of(): received nullptr");
3620 return _VSTD::__str_find_last_not_of<value_type, size_type, traits_type, npos>
3621 (data(), size(), __s, __pos, __n);
3624 template<class _CharT, class _Traits, class _Allocator>
3625 inline _LIBCPP_INLINE_VISIBILITY
3626 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3627 basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const basic_string& __str,
3628 size_type __pos) const _NOEXCEPT
3630 return _VSTD::__str_find_last_not_of<value_type, size_type, traits_type, npos>
3631 (data(), size(), __str.data(), __pos, __str.size());
3634 template<class _CharT, class _Traits, class _Allocator>
3635 inline _LIBCPP_INLINE_VISIBILITY
3636 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3637 basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s,
3638 size_type __pos) const _NOEXCEPT
3640 _LIBCPP_ASSERT(__s != nullptr, "string::find_last_not_of(): received nullptr");
3641 return _VSTD::__str_find_last_not_of<value_type, size_type, traits_type, npos>
3642 (data(), size(), __s, __pos, traits_type::length(__s));
3645 template<class _CharT, class _Traits, class _Allocator>
3646 inline _LIBCPP_INLINE_VISIBILITY
3647 typename basic_string<_CharT, _Traits, _Allocator>::size_type
3648 basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(value_type __c,
3649 size_type __pos) const _NOEXCEPT
3651 return _VSTD::__str_find_last_not_of<value_type, size_type, traits_type, npos>
3652 (data(), size(), __c, __pos);
3657 template <class _CharT, class _Traits, class _Allocator>
3658 inline _LIBCPP_INLINE_VISIBILITY
3660 basic_string<_CharT, _Traits, _Allocator>::compare(const basic_string& __str) const _NOEXCEPT
3662 size_t __lhs_sz = size();
3663 size_t __rhs_sz = __str.size();
3664 int __result = traits_type::compare(data(), __str.data(),
3665 _VSTD::min(__lhs_sz, __rhs_sz));
3668 if (__lhs_sz < __rhs_sz)
3670 if (__lhs_sz > __rhs_sz)
3675 template <class _CharT, class _Traits, class _Allocator>
3676 inline _LIBCPP_INLINE_VISIBILITY
3678 basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
3680 const basic_string& __str) const
3682 return compare(__pos1, __n1, __str.data(), __str.size());
3685 template <class _CharT, class _Traits, class _Allocator>
3687 basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
3689 const basic_string& __str,
3691 size_type __n2) const
3693 size_type __sz = __str.size();
3695 this->__throw_out_of_range();
3696 return compare(__pos1, __n1, __str.data() + __pos2, _VSTD::min(__n2,
3700 template <class _CharT, class _Traits, class _Allocator>
3702 basic_string<_CharT, _Traits, _Allocator>::compare(const value_type* __s) const _NOEXCEPT
3704 _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr");
3705 return compare(0, npos, __s, traits_type::length(__s));
3708 template <class _CharT, class _Traits, class _Allocator>
3710 basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
3712 const value_type* __s) const
3714 _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr");
3715 return compare(__pos1, __n1, __s, traits_type::length(__s));
3718 template <class _CharT, class _Traits, class _Allocator>
3720 basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
3722 const value_type* __s,
3723 size_type __n2) const
3725 _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::compare(): received nullptr");
3726 size_type __sz = size();
3727 if (__pos1 > __sz || __n2 == npos)
3728 this->__throw_out_of_range();
3729 size_type __rlen = _VSTD::min(__n1, __sz - __pos1);
3730 int __r = traits_type::compare(data() + __pos1, __s, _VSTD::min(__rlen, __n2));
3735 else if (__rlen > __n2)
3743 template<class _CharT, class _Traits, class _Allocator>
3744 inline _LIBCPP_INLINE_VISIBILITY
3746 basic_string<_CharT, _Traits, _Allocator>::__invariants() const
3748 if (size() > capacity())
3750 if (capacity() < __min_cap - 1)
3754 if (data()[size()] != value_type(0))
3761 template<class _CharT, class _Traits, class _Allocator>
3762 inline _LIBCPP_INLINE_VISIBILITY
3764 operator==(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3765 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3767 size_t __lhs_sz = __lhs.size();
3768 return __lhs_sz == __rhs.size() && _Traits::compare(__lhs.data(),
3773 template<class _Allocator>
3774 inline _LIBCPP_INLINE_VISIBILITY
3776 operator==(const basic_string<char, char_traits<char>, _Allocator>& __lhs,
3777 const basic_string<char, char_traits<char>, _Allocator>& __rhs) _NOEXCEPT
3779 size_t __lhs_sz = __lhs.size();
3780 if (__lhs_sz != __rhs.size())
3782 const char* __lp = __lhs.data();
3783 const char* __rp = __rhs.data();
3784 if (__lhs.__is_long())
3785 return char_traits<char>::compare(__lp, __rp, __lhs_sz) == 0;
3786 for (; __lhs_sz != 0; --__lhs_sz, ++__lp, ++__rp)
3792 template<class _CharT, class _Traits, class _Allocator>
3793 inline _LIBCPP_INLINE_VISIBILITY
3795 operator==(const _CharT* __lhs,
3796 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3798 return __rhs.compare(__lhs) == 0;
3801 template<class _CharT, class _Traits, class _Allocator>
3802 inline _LIBCPP_INLINE_VISIBILITY
3804 operator==(const basic_string<_CharT,_Traits,_Allocator>& __lhs,
3805 const _CharT* __rhs) _NOEXCEPT
3807 return __lhs.compare(__rhs) == 0;
3812 template<class _CharT, class _Traits, class _Allocator>
3813 inline _LIBCPP_INLINE_VISIBILITY
3815 operator!=(const basic_string<_CharT,_Traits,_Allocator>& __lhs,
3816 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3818 return !(__lhs == __rhs);
3821 template<class _CharT, class _Traits, class _Allocator>
3822 inline _LIBCPP_INLINE_VISIBILITY
3824 operator!=(const _CharT* __lhs,
3825 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3827 return !(__lhs == __rhs);
3830 template<class _CharT, class _Traits, class _Allocator>
3831 inline _LIBCPP_INLINE_VISIBILITY
3833 operator!=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3834 const _CharT* __rhs) _NOEXCEPT
3836 return !(__lhs == __rhs);
3841 template<class _CharT, class _Traits, class _Allocator>
3842 inline _LIBCPP_INLINE_VISIBILITY
3844 operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3845 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3847 return __lhs.compare(__rhs) < 0;
3850 template<class _CharT, class _Traits, class _Allocator>
3851 inline _LIBCPP_INLINE_VISIBILITY
3853 operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3854 const _CharT* __rhs) _NOEXCEPT
3856 return __lhs.compare(__rhs) < 0;
3859 template<class _CharT, class _Traits, class _Allocator>
3860 inline _LIBCPP_INLINE_VISIBILITY
3862 operator< (const _CharT* __lhs,
3863 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3865 return __rhs.compare(__lhs) > 0;
3870 template<class _CharT, class _Traits, class _Allocator>
3871 inline _LIBCPP_INLINE_VISIBILITY
3873 operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3874 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3876 return __rhs < __lhs;
3879 template<class _CharT, class _Traits, class _Allocator>
3880 inline _LIBCPP_INLINE_VISIBILITY
3882 operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3883 const _CharT* __rhs) _NOEXCEPT
3885 return __rhs < __lhs;
3888 template<class _CharT, class _Traits, class _Allocator>
3889 inline _LIBCPP_INLINE_VISIBILITY
3891 operator> (const _CharT* __lhs,
3892 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3894 return __rhs < __lhs;
3899 template<class _CharT, class _Traits, class _Allocator>
3900 inline _LIBCPP_INLINE_VISIBILITY
3902 operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3903 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3905 return !(__rhs < __lhs);
3908 template<class _CharT, class _Traits, class _Allocator>
3909 inline _LIBCPP_INLINE_VISIBILITY
3911 operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3912 const _CharT* __rhs) _NOEXCEPT
3914 return !(__rhs < __lhs);
3917 template<class _CharT, class _Traits, class _Allocator>
3918 inline _LIBCPP_INLINE_VISIBILITY
3920 operator<=(const _CharT* __lhs,
3921 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3923 return !(__rhs < __lhs);
3928 template<class _CharT, class _Traits, class _Allocator>
3929 inline _LIBCPP_INLINE_VISIBILITY
3931 operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3932 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3934 return !(__lhs < __rhs);
3937 template<class _CharT, class _Traits, class _Allocator>
3938 inline _LIBCPP_INLINE_VISIBILITY
3940 operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3941 const _CharT* __rhs) _NOEXCEPT
3943 return !(__lhs < __rhs);
3946 template<class _CharT, class _Traits, class _Allocator>
3947 inline _LIBCPP_INLINE_VISIBILITY
3949 operator>=(const _CharT* __lhs,
3950 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
3952 return !(__lhs < __rhs);
3957 template<class _CharT, class _Traits, class _Allocator>
3958 basic_string<_CharT, _Traits, _Allocator>
3959 operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
3960 const basic_string<_CharT, _Traits, _Allocator>& __rhs)
3962 basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator());
3963 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size();
3964 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size();
3965 __r.__init(__lhs.data(), __lhs_sz, __lhs_sz + __rhs_sz);
3966 __r.append(__rhs.data(), __rhs_sz);
3970 template<class _CharT, class _Traits, class _Allocator>
3971 basic_string<_CharT, _Traits, _Allocator>
3972 operator+(const _CharT* __lhs , const basic_string<_CharT,_Traits,_Allocator>& __rhs)
3974 basic_string<_CharT, _Traits, _Allocator> __r(__rhs.get_allocator());
3975 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = _Traits::length(__lhs);
3976 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size();
3977 __r.__init(__lhs, __lhs_sz, __lhs_sz + __rhs_sz);
3978 __r.append(__rhs.data(), __rhs_sz);
3982 template<class _CharT, class _Traits, class _Allocator>
3983 basic_string<_CharT, _Traits, _Allocator>
3984 operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Allocator>& __rhs)
3986 basic_string<_CharT, _Traits, _Allocator> __r(__rhs.get_allocator());
3987 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size();
3988 __r.__init(&__lhs, 1, 1 + __rhs_sz);
3989 __r.append(__rhs.data(), __rhs_sz);
3993 template<class _CharT, class _Traits, class _Allocator>
3994 basic_string<_CharT, _Traits, _Allocator>
3995 operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs)
3997 basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator());
3998 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size();
3999 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = _Traits::length(__rhs);
4000 __r.__init(__lhs.data(), __lhs_sz, __lhs_sz + __rhs_sz);
4001 __r.append(__rhs, __rhs_sz);
4005 template<class _CharT, class _Traits, class _Allocator>
4006 basic_string<_CharT, _Traits, _Allocator>
4007 operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, _CharT __rhs)
4009 basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator());
4010 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size();
4011 __r.__init(__lhs.data(), __lhs_sz, __lhs_sz + 1);
4012 __r.push_back(__rhs);
4016 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4018 template<class _CharT, class _Traits, class _Allocator>
4019 inline _LIBCPP_INLINE_VISIBILITY
4020 basic_string<_CharT, _Traits, _Allocator>
4021 operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs)
4023 return _VSTD::move(__lhs.append(__rhs));
4026 template<class _CharT, class _Traits, class _Allocator>
4027 inline _LIBCPP_INLINE_VISIBILITY
4028 basic_string<_CharT, _Traits, _Allocator>
4029 operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs)
4031 return _VSTD::move(__rhs.insert(0, __lhs));
4034 template<class _CharT, class _Traits, class _Allocator>
4035 inline _LIBCPP_INLINE_VISIBILITY
4036 basic_string<_CharT, _Traits, _Allocator>
4037 operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs)
4039 return _VSTD::move(__lhs.append(__rhs));
4042 template<class _CharT, class _Traits, class _Allocator>
4043 inline _LIBCPP_INLINE_VISIBILITY
4044 basic_string<_CharT, _Traits, _Allocator>
4045 operator+(const _CharT* __lhs , basic_string<_CharT,_Traits,_Allocator>&& __rhs)
4047 return _VSTD::move(__rhs.insert(0, __lhs));
4050 template<class _CharT, class _Traits, class _Allocator>
4051 inline _LIBCPP_INLINE_VISIBILITY
4052 basic_string<_CharT, _Traits, _Allocator>
4053 operator+(_CharT __lhs, basic_string<_CharT,_Traits,_Allocator>&& __rhs)
4055 __rhs.insert(__rhs.begin(), __lhs);
4056 return _VSTD::move(__rhs);
4059 template<class _CharT, class _Traits, class _Allocator>
4060 inline _LIBCPP_INLINE_VISIBILITY
4061 basic_string<_CharT, _Traits, _Allocator>
4062 operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const _CharT* __rhs)
4064 return _VSTD::move(__lhs.append(__rhs));
4067 template<class _CharT, class _Traits, class _Allocator>
4068 inline _LIBCPP_INLINE_VISIBILITY
4069 basic_string<_CharT, _Traits, _Allocator>
4070 operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, _CharT __rhs)
4072 __lhs.push_back(__rhs);
4073 return _VSTD::move(__lhs);
4076 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4080 template<class _CharT, class _Traits, class _Allocator>
4081 inline _LIBCPP_INLINE_VISIBILITY
4083 swap(basic_string<_CharT, _Traits, _Allocator>& __lhs,
4084 basic_string<_CharT, _Traits, _Allocator>& __rhs)
4085 _NOEXCEPT_(_NOEXCEPT_(__lhs.swap(__rhs)))
4090 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
4092 typedef basic_string<char16_t> u16string;
4093 typedef basic_string<char32_t> u32string;
4095 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
4097 _LIBCPP_FUNC_VIS int stoi (const string& __str, size_t* __idx = 0, int __base = 10);
4098 _LIBCPP_FUNC_VIS long stol (const string& __str, size_t* __idx = 0, int __base = 10);
4099 _LIBCPP_FUNC_VIS unsigned long stoul (const string& __str, size_t* __idx = 0, int __base = 10);
4100 _LIBCPP_FUNC_VIS long long stoll (const string& __str, size_t* __idx = 0, int __base = 10);
4101 _LIBCPP_FUNC_VIS unsigned long long stoull(const string& __str, size_t* __idx = 0, int __base = 10);
4103 _LIBCPP_FUNC_VIS float stof (const string& __str, size_t* __idx = 0);
4104 _LIBCPP_FUNC_VIS double stod (const string& __str, size_t* __idx = 0);
4105 _LIBCPP_FUNC_VIS long double stold(const string& __str, size_t* __idx = 0);
4107 _LIBCPP_FUNC_VIS string to_string(int __val);
4108 _LIBCPP_FUNC_VIS string to_string(unsigned __val);
4109 _LIBCPP_FUNC_VIS string to_string(long __val);
4110 _LIBCPP_FUNC_VIS string to_string(unsigned long __val);
4111 _LIBCPP_FUNC_VIS string to_string(long long __val);
4112 _LIBCPP_FUNC_VIS string to_string(unsigned long long __val);
4113 _LIBCPP_FUNC_VIS string to_string(float __val);
4114 _LIBCPP_FUNC_VIS string to_string(double __val);
4115 _LIBCPP_FUNC_VIS string to_string(long double __val);
4117 _LIBCPP_FUNC_VIS int stoi (const wstring& __str, size_t* __idx = 0, int __base = 10);
4118 _LIBCPP_FUNC_VIS long stol (const wstring& __str, size_t* __idx = 0, int __base = 10);
4119 _LIBCPP_FUNC_VIS unsigned long stoul (const wstring& __str, size_t* __idx = 0, int __base = 10);
4120 _LIBCPP_FUNC_VIS long long stoll (const wstring& __str, size_t* __idx = 0, int __base = 10);
4121 _LIBCPP_FUNC_VIS unsigned long long stoull(const wstring& __str, size_t* __idx = 0, int __base = 10);
4123 _LIBCPP_FUNC_VIS float stof (const wstring& __str, size_t* __idx = 0);
4124 _LIBCPP_FUNC_VIS double stod (const wstring& __str, size_t* __idx = 0);
4125 _LIBCPP_FUNC_VIS long double stold(const wstring& __str, size_t* __idx = 0);
4127 _LIBCPP_FUNC_VIS wstring to_wstring(int __val);
4128 _LIBCPP_FUNC_VIS wstring to_wstring(unsigned __val);
4129 _LIBCPP_FUNC_VIS wstring to_wstring(long __val);
4130 _LIBCPP_FUNC_VIS wstring to_wstring(unsigned long __val);
4131 _LIBCPP_FUNC_VIS wstring to_wstring(long long __val);
4132 _LIBCPP_FUNC_VIS wstring to_wstring(unsigned long long __val);
4133 _LIBCPP_FUNC_VIS wstring to_wstring(float __val);
4134 _LIBCPP_FUNC_VIS wstring to_wstring(double __val);
4135 _LIBCPP_FUNC_VIS wstring to_wstring(long double __val);
4137 template<class _CharT, class _Traits, class _Allocator>
4138 const typename basic_string<_CharT, _Traits, _Allocator>::size_type
4139 basic_string<_CharT, _Traits, _Allocator>::npos;
4141 template<class _CharT, class _Traits, class _Allocator>
4142 struct _LIBCPP_TYPE_VIS_ONLY hash<basic_string<_CharT, _Traits, _Allocator> >
4143 : public unary_function<basic_string<_CharT, _Traits, _Allocator>, size_t>
4146 operator()(const basic_string<_CharT, _Traits, _Allocator>& __val) const _NOEXCEPT;
4149 template<class _CharT, class _Traits, class _Allocator>
4151 hash<basic_string<_CharT, _Traits, _Allocator> >::operator()(
4152 const basic_string<_CharT, _Traits, _Allocator>& __val) const _NOEXCEPT
4154 return __do_string_hash(__val.data(), __val.data() + __val.size());
4157 template<class _CharT, class _Traits, class _Allocator>
4158 basic_ostream<_CharT, _Traits>&
4159 operator<<(basic_ostream<_CharT, _Traits>& __os,
4160 const basic_string<_CharT, _Traits, _Allocator>& __str);
4162 template<class _CharT, class _Traits, class _Allocator>
4163 basic_istream<_CharT, _Traits>&
4164 operator>>(basic_istream<_CharT, _Traits>& __is,
4165 basic_string<_CharT, _Traits, _Allocator>& __str);
4167 template<class _CharT, class _Traits, class _Allocator>
4168 basic_istream<_CharT, _Traits>&
4169 getline(basic_istream<_CharT, _Traits>& __is,
4170 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm);
4172 template<class _CharT, class _Traits, class _Allocator>
4173 inline _LIBCPP_INLINE_VISIBILITY
4174 basic_istream<_CharT, _Traits>&
4175 getline(basic_istream<_CharT, _Traits>& __is,
4176 basic_string<_CharT, _Traits, _Allocator>& __str);
4178 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4180 template<class _CharT, class _Traits, class _Allocator>
4181 inline _LIBCPP_INLINE_VISIBILITY
4182 basic_istream<_CharT, _Traits>&
4183 getline(basic_istream<_CharT, _Traits>&& __is,
4184 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm);
4186 template<class _CharT, class _Traits, class _Allocator>
4187 inline _LIBCPP_INLINE_VISIBILITY
4188 basic_istream<_CharT, _Traits>&
4189 getline(basic_istream<_CharT, _Traits>&& __is,
4190 basic_string<_CharT, _Traits, _Allocator>& __str);
4192 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4194 #if _LIBCPP_DEBUG_LEVEL >= 2
4196 template<class _CharT, class _Traits, class _Allocator>
4198 basic_string<_CharT, _Traits, _Allocator>::__dereferenceable(const const_iterator* __i) const
4200 return this->data() <= _VSTD::__to_raw_pointer(__i->base()) &&
4201 _VSTD::__to_raw_pointer(__i->base()) < this->data() + this->size();
4204 template<class _CharT, class _Traits, class _Allocator>
4206 basic_string<_CharT, _Traits, _Allocator>::__decrementable(const const_iterator* __i) const
4208 return this->data() < _VSTD::__to_raw_pointer(__i->base()) &&
4209 _VSTD::__to_raw_pointer(__i->base()) <= this->data() + this->size();
4212 template<class _CharT, class _Traits, class _Allocator>
4214 basic_string<_CharT, _Traits, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const
4216 const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n;
4217 return this->data() <= __p && __p <= this->data() + this->size();
4220 template<class _CharT, class _Traits, class _Allocator>
4222 basic_string<_CharT, _Traits, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const
4224 const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n;
4225 return this->data() <= __p && __p < this->data() + this->size();
4228 #endif // _LIBCPP_DEBUG_LEVEL >= 2
4230 #if _LIBCPP_STD_VER > 11
4231 // Literal suffixes for basic_string [basic.string.literals]
4232 inline namespace literals
4234 inline namespace string_literals
4236 inline _LIBCPP_INLINE_VISIBILITY
4237 basic_string<char> operator "" s( const char *__str, size_t __len )
4239 return basic_string<char> (__str, __len);
4242 inline _LIBCPP_INLINE_VISIBILITY
4243 basic_string<wchar_t> operator "" s( const wchar_t *__str, size_t __len )
4245 return basic_string<wchar_t> (__str, __len);
4248 inline _LIBCPP_INLINE_VISIBILITY
4249 basic_string<char16_t> operator "" s( const char16_t *__str, size_t __len )
4251 return basic_string<char16_t> (__str, __len);
4254 inline _LIBCPP_INLINE_VISIBILITY
4255 basic_string<char32_t> operator "" s( const char32_t *__str, size_t __len )
4257 return basic_string<char32_t> (__str, __len);
4263 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_string<char>)
4264 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_string<wchar_t>)
4265 _LIBCPP_EXTERN_TEMPLATE(string operator+<char, char_traits<char>, allocator<char> >(char const*, string const&))
4267 _LIBCPP_END_NAMESPACE_STD
4269 #endif // _LIBCPP_STRING