1// -*- C++ -*- 2//===--------------------------- string -----------------------------------===// 3// 4// The LLVM Compiler Infrastructure 5// 6// This file is distributed under the University of Illinois Open Source 7// License. See LICENSE.TXT for details. 8// 9//===----------------------------------------------------------------------===// 10 11#ifndef _LIBCPP_STRING 12#define _LIBCPP_STRING 13 14/* 15 string synopsis 16 17namespace std 18{ 19 20template <class stateT> 21class fpos 22{ 23private: 24 stateT st; 25public: 26 fpos(streamoff = streamoff()); 27 28 operator streamoff() const; 29 30 stateT state() const; 31 void state(stateT); 32 33 fpos& operator+=(streamoff); 34 fpos operator+ (streamoff) const; 35 fpos& operator-=(streamoff); 36 fpos operator- (streamoff) const; 37}; 38 39template <class stateT> streamoff operator-(const fpos<stateT>& x, const fpos<stateT>& y); 40 41template <class stateT> bool operator==(const fpos<stateT>& x, const fpos<stateT>& y); 42template <class stateT> bool operator!=(const fpos<stateT>& x, const fpos<stateT>& y); 43 44template <class charT> 45struct char_traits 46{ 47 typedef charT char_type; 48 typedef ... int_type; 49 typedef streamoff off_type; 50 typedef streampos pos_type; 51 typedef mbstate_t state_type; 52 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; 56 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); 63 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; 69}; 70 71template <> struct char_traits<char>; 72template <> struct char_traits<wchar_t>; 73 74template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 75class basic_string 76{ 77public: 78// types: 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; 92 93 static const size_type npos = -1; 94 95 basic_string() 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, 102 const allocator_type& a = allocator_type()); 103 basic_string(const basic_string& str, size_type pos, size_type n, 104 const Allocator& a = Allocator()); 105 template<class T> 106 basic_string(const T& t, size_type pos, size_type n, const Allocator& a = Allocator()); // C++17 107 explicit basic_string(const basic_string_view<charT, traits> sv, const Allocator& a = Allocator()); 108 basic_string(const value_type* s, const allocator_type& a = allocator_type()); 109 basic_string(const value_type* s, size_type n, const allocator_type& a = allocator_type()); 110 basic_string(size_type n, value_type c, const allocator_type& a = allocator_type()); 111 template<class InputIterator> 112 basic_string(InputIterator begin, InputIterator end, 113 const allocator_type& a = allocator_type()); 114 basic_string(initializer_list<value_type>, const Allocator& = Allocator()); 115 basic_string(const basic_string&, const Allocator&); 116 basic_string(basic_string&&, const Allocator&); 117 118 ~basic_string(); 119 120 operator basic_string_view<charT, traits>() const noexcept; 121 122 basic_string& operator=(const basic_string& str); 123 basic_string& operator=(basic_string_view<charT, traits> sv); 124 basic_string& operator=(basic_string&& str) 125 noexcept( 126 allocator_type::propagate_on_container_move_assignment::value || 127 allocator_type::is_always_equal::value ); // C++17 128 basic_string& operator=(const value_type* s); 129 basic_string& operator=(value_type c); 130 basic_string& operator=(initializer_list<value_type>); 131 132 iterator begin() noexcept; 133 const_iterator begin() const noexcept; 134 iterator end() noexcept; 135 const_iterator end() const noexcept; 136 137 reverse_iterator rbegin() noexcept; 138 const_reverse_iterator rbegin() const noexcept; 139 reverse_iterator rend() noexcept; 140 const_reverse_iterator rend() const noexcept; 141 142 const_iterator cbegin() const noexcept; 143 const_iterator cend() const noexcept; 144 const_reverse_iterator crbegin() const noexcept; 145 const_reverse_iterator crend() const noexcept; 146 147 size_type size() const noexcept; 148 size_type length() const noexcept; 149 size_type max_size() const noexcept; 150 size_type capacity() const noexcept; 151 152 void resize(size_type n, value_type c); 153 void resize(size_type n); 154 155 void reserve(size_type res_arg = 0); 156 void shrink_to_fit(); 157 void clear() noexcept; 158 bool empty() const noexcept; 159 160 const_reference operator[](size_type pos) const; 161 reference operator[](size_type pos); 162 163 const_reference at(size_type n) const; 164 reference at(size_type n); 165 166 basic_string& operator+=(const basic_string& str); 167 basic_string& operator+=(basic_string_view<charT, traits> sv); 168 basic_string& operator+=(const value_type* s); 169 basic_string& operator+=(value_type c); 170 basic_string& operator+=(initializer_list<value_type>); 171 172 basic_string& append(const basic_string& str); 173 basic_string& append(basic_string_view<charT, traits> sv); 174 basic_string& append(const basic_string& str, size_type pos, size_type n=npos); //C++14 175 template <class T> 176 basic_string& append(const T& t, size_type pos, size_type n=npos); // C++17 177 basic_string& append(const value_type* s, size_type n); 178 basic_string& append(const value_type* s); 179 basic_string& append(size_type n, value_type c); 180 template<class InputIterator> 181 basic_string& append(InputIterator first, InputIterator last); 182 basic_string& append(initializer_list<value_type>); 183 184 void push_back(value_type c); 185 void pop_back(); 186 reference front(); 187 const_reference front() const; 188 reference back(); 189 const_reference back() const; 190 191 basic_string& assign(const basic_string& str); 192 basic_string& assign(basic_string_view<charT, traits> sv); 193 basic_string& assign(basic_string&& str); 194 basic_string& assign(const basic_string& str, size_type pos, size_type n=npos); // C++14 195 template <class T> 196 basic_string& assign(const T& t, size_type pos, size_type n=npos); // C++17 197 basic_string& assign(const value_type* s, size_type n); 198 basic_string& assign(const value_type* s); 199 basic_string& assign(size_type n, value_type c); 200 template<class InputIterator> 201 basic_string& assign(InputIterator first, InputIterator last); 202 basic_string& assign(initializer_list<value_type>); 203 204 basic_string& insert(size_type pos1, const basic_string& str); 205 basic_string& insert(size_type pos1, basic_string_view<charT, traits> sv); 206 basic_string& insert(size_type pos1, const basic_string& str, 207 size_type pos2, size_type n); 208 template <class T> 209 basic_string& insert(size_type pos1, const T& t, size_type pos2, size_type n); // C++17 210 basic_string& insert(size_type pos, const value_type* s, size_type n=npos); //C++14 211 basic_string& insert(size_type pos, const value_type* s); 212 basic_string& insert(size_type pos, size_type n, value_type c); 213 iterator insert(const_iterator p, value_type c); 214 iterator insert(const_iterator p, size_type n, value_type c); 215 template<class InputIterator> 216 iterator insert(const_iterator p, InputIterator first, InputIterator last); 217 iterator insert(const_iterator p, initializer_list<value_type>); 218 219 basic_string& erase(size_type pos = 0, size_type n = npos); 220 iterator erase(const_iterator position); 221 iterator erase(const_iterator first, const_iterator last); 222 223 basic_string& replace(size_type pos1, size_type n1, const basic_string& str); 224 basic_string& replace(size_type pos1, size_type n1, basic_string_view<charT, traits> sv); 225 basic_string& replace(size_type pos1, size_type n1, const basic_string& str, 226 size_type pos2, size_type n2=npos); // C++14 227 template <class T> 228 basic_string& replace(size_type pos1, size_type n1, const T& t, 229 size_type pos2, size_type n); // C++17 230 basic_string& replace(size_type pos, size_type n1, const value_type* s, size_type n2); 231 basic_string& replace(size_type pos, size_type n1, const value_type* s); 232 basic_string& replace(size_type pos, size_type n1, size_type n2, value_type c); 233 basic_string& replace(const_iterator i1, const_iterator i2, const basic_string& str); 234 basic_string& replace(const_iterator i1, const_iterator i2, basic_string_view<charT, traits> sv); 235 basic_string& replace(const_iterator i1, const_iterator i2, const value_type* s, size_type n); 236 basic_string& replace(const_iterator i1, const_iterator i2, const value_type* s); 237 basic_string& replace(const_iterator i1, const_iterator i2, size_type n, value_type c); 238 template<class InputIterator> 239 basic_string& replace(const_iterator i1, const_iterator i2, InputIterator j1, InputIterator j2); 240 basic_string& replace(const_iterator i1, const_iterator i2, initializer_list<value_type>); 241 242 size_type copy(value_type* s, size_type n, size_type pos = 0) const; 243 basic_string substr(size_type pos = 0, size_type n = npos) const; 244 245 void swap(basic_string& str) 246 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 247 allocator_traits<allocator_type>::is_always_equal::value); // C++17 248 249 const value_type* c_str() const noexcept; 250 const value_type* data() const noexcept; 251 value_type* data() noexcept; // C++17 252 253 allocator_type get_allocator() const noexcept; 254 255 size_type find(const basic_string& str, size_type pos = 0) const noexcept; 256 size_type find(basic_string_view<charT, traits> sv, size_type pos = 0) const noexcept; 257 size_type find(const value_type* s, size_type pos, size_type n) const noexcept; 258 size_type find(const value_type* s, size_type pos = 0) const noexcept; 259 size_type find(value_type c, size_type pos = 0) const noexcept; 260 261 size_type rfind(const basic_string& str, size_type pos = npos) const noexcept; 262 size_type ffind(basic_string_view<charT, traits> sv, size_type pos = 0) const noexcept; 263 size_type rfind(const value_type* s, size_type pos, size_type n) const noexcept; 264 size_type rfind(const value_type* s, size_type pos = npos) const noexcept; 265 size_type rfind(value_type c, size_type pos = npos) const noexcept; 266 267 size_type find_first_of(const basic_string& str, size_type pos = 0) const noexcept; 268 size_type find_first_of(basic_string_view<charT, traits> sv, size_type pos = 0) const noexcept; 269 size_type find_first_of(const value_type* s, size_type pos, size_type n) const noexcept; 270 size_type find_first_of(const value_type* s, size_type pos = 0) const noexcept; 271 size_type find_first_of(value_type c, size_type pos = 0) const noexcept; 272 273 size_type find_last_of(const basic_string& str, size_type pos = npos) const noexcept; 274 size_type find_last_of(basic_string_view<charT, traits> sv, size_type pos = 0) const noexcept; 275 size_type find_last_of(const value_type* s, size_type pos, size_type n) const noexcept; 276 size_type find_last_of(const value_type* s, size_type pos = npos) const noexcept; 277 size_type find_last_of(value_type c, size_type pos = npos) const noexcept; 278 279 size_type find_first_not_of(const basic_string& str, size_type pos = 0) const noexcept; 280 size_type find_first_not_of(basic_string_view<charT, traits> sv, size_type pos = 0) const noexcept; 281 size_type find_first_not_of(const value_type* s, size_type pos, size_type n) const noexcept; 282 size_type find_first_not_of(const value_type* s, size_type pos = 0) const noexcept; 283 size_type find_first_not_of(value_type c, size_type pos = 0) const noexcept; 284 285 size_type find_last_not_of(const basic_string& str, size_type pos = npos) const noexcept; 286 size_type find_last_not_of(basic_string_view<charT, traits> sv, size_type pos = 0) const noexcept; 287 size_type find_last_not_of(const value_type* s, size_type pos, size_type n) const noexcept; 288 size_type find_last_not_of(const value_type* s, size_type pos = npos) const noexcept; 289 size_type find_last_not_of(value_type c, size_type pos = npos) const noexcept; 290 291 int compare(const basic_string& str) const noexcept; 292 int compare(basic_string_view<charT, traits> sv) const noexcept; 293 int compare(size_type pos1, size_type n1, const basic_string& str) const; 294 int compare(size_type pos1, size_type n1, basic_string_view<charT, traits> sv) const; 295 int compare(size_type pos1, size_type n1, const basic_string& str, 296 size_type pos2, size_type n2=npos) const; // C++14 297 template <class T> 298 int compare(size_type pos1, size_type n1, const T& t, 299 size_type pos2, size_type n2=npos) const; // C++17 300 int compare(const value_type* s) const noexcept; 301 int compare(size_type pos1, size_type n1, const value_type* s) const; 302 int compare(size_type pos1, size_type n1, const value_type* s, size_type n2) const; 303 304 bool __invariants() const; 305}; 306 307template<class charT, class traits, class Allocator> 308basic_string<charT, traits, Allocator> 309operator+(const basic_string<charT, traits, Allocator>& lhs, 310 const basic_string<charT, traits, Allocator>& rhs); 311 312template<class charT, class traits, class Allocator> 313basic_string<charT, traits, Allocator> 314operator+(const charT* lhs , const basic_string<charT,traits,Allocator>&rhs); 315 316template<class charT, class traits, class Allocator> 317basic_string<charT, traits, Allocator> 318operator+(charT lhs, const basic_string<charT,traits,Allocator>& rhs); 319 320template<class charT, class traits, class Allocator> 321basic_string<charT, traits, Allocator> 322operator+(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs); 323 324template<class charT, class traits, class Allocator> 325basic_string<charT, traits, Allocator> 326operator+(const basic_string<charT, traits, Allocator>& lhs, charT rhs); 327 328template<class charT, class traits, class Allocator> 329bool operator==(const basic_string<charT, traits, Allocator>& lhs, 330 const basic_string<charT, traits, Allocator>& rhs) noexcept; 331 332template<class charT, class traits, class Allocator> 333bool operator==(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept; 334 335template<class charT, class traits, class Allocator> 336bool operator==(const basic_string<charT,traits,Allocator>& lhs, const charT* rhs) noexcept; 337 338template<class charT, class traits, class Allocator> 339bool operator!=(const basic_string<charT,traits,Allocator>& lhs, 340 const basic_string<charT, traits, Allocator>& rhs) noexcept; 341 342template<class charT, class traits, class Allocator> 343bool operator!=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept; 344 345template<class charT, class traits, class Allocator> 346bool operator!=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept; 347 348template<class charT, class traits, class Allocator> 349bool operator< (const basic_string<charT, traits, Allocator>& lhs, 350 const basic_string<charT, traits, Allocator>& rhs) noexcept; 351 352template<class charT, class traits, class Allocator> 353bool operator< (const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept; 354 355template<class charT, class traits, class Allocator> 356bool operator< (const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept; 357 358template<class charT, class traits, class Allocator> 359bool operator> (const basic_string<charT, traits, Allocator>& lhs, 360 const basic_string<charT, traits, Allocator>& rhs) noexcept; 361 362template<class charT, class traits, class Allocator> 363bool operator> (const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept; 364 365template<class charT, class traits, class Allocator> 366bool operator> (const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept; 367 368template<class charT, class traits, class Allocator> 369bool operator<=(const basic_string<charT, traits, Allocator>& lhs, 370 const basic_string<charT, traits, Allocator>& rhs) noexcept; 371 372template<class charT, class traits, class Allocator> 373bool operator<=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept; 374 375template<class charT, class traits, class Allocator> 376bool operator<=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept; 377 378template<class charT, class traits, class Allocator> 379bool operator>=(const basic_string<charT, traits, Allocator>& lhs, 380 const basic_string<charT, traits, Allocator>& rhs) noexcept; 381 382template<class charT, class traits, class Allocator> 383bool operator>=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept; 384 385template<class charT, class traits, class Allocator> 386bool operator>=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept; 387 388template<class charT, class traits, class Allocator> 389void swap(basic_string<charT, traits, Allocator>& lhs, 390 basic_string<charT, traits, Allocator>& rhs) 391 noexcept(noexcept(lhs.swap(rhs))); 392 393template<class charT, class traits, class Allocator> 394basic_istream<charT, traits>& 395operator>>(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str); 396 397template<class charT, class traits, class Allocator> 398basic_ostream<charT, traits>& 399operator<<(basic_ostream<charT, traits>& os, const basic_string<charT, traits, Allocator>& str); 400 401template<class charT, class traits, class Allocator> 402basic_istream<charT, traits>& 403getline(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str, 404 charT delim); 405 406template<class charT, class traits, class Allocator> 407basic_istream<charT, traits>& 408getline(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str); 409 410typedef basic_string<char> string; 411typedef basic_string<wchar_t> wstring; 412typedef basic_string<char16_t> u16string; 413typedef basic_string<char32_t> u32string; 414 415int stoi (const string& str, size_t* idx = 0, int base = 10); 416long stol (const string& str, size_t* idx = 0, int base = 10); 417unsigned long stoul (const string& str, size_t* idx = 0, int base = 10); 418long long stoll (const string& str, size_t* idx = 0, int base = 10); 419unsigned long long stoull(const string& str, size_t* idx = 0, int base = 10); 420 421float stof (const string& str, size_t* idx = 0); 422double stod (const string& str, size_t* idx = 0); 423long double stold(const string& str, size_t* idx = 0); 424 425string to_string(int val); 426string to_string(unsigned val); 427string to_string(long val); 428string to_string(unsigned long val); 429string to_string(long long val); 430string to_string(unsigned long long val); 431string to_string(float val); 432string to_string(double val); 433string to_string(long double val); 434 435int stoi (const wstring& str, size_t* idx = 0, int base = 10); 436long stol (const wstring& str, size_t* idx = 0, int base = 10); 437unsigned long stoul (const wstring& str, size_t* idx = 0, int base = 10); 438long long stoll (const wstring& str, size_t* idx = 0, int base = 10); 439unsigned long long stoull(const wstring& str, size_t* idx = 0, int base = 10); 440 441float stof (const wstring& str, size_t* idx = 0); 442double stod (const wstring& str, size_t* idx = 0); 443long double stold(const wstring& str, size_t* idx = 0); 444 445wstring to_wstring(int val); 446wstring to_wstring(unsigned val); 447wstring to_wstring(long val); 448wstring to_wstring(unsigned long val); 449wstring to_wstring(long long val); 450wstring to_wstring(unsigned long long val); 451wstring to_wstring(float val); 452wstring to_wstring(double val); 453wstring to_wstring(long double val); 454 455template <> struct hash<string>; 456template <> struct hash<u16string>; 457template <> struct hash<u32string>; 458template <> struct hash<wstring>; 459 460basic_string<char> operator "" s( const char *str, size_t len ); // C++14 461basic_string<wchar_t> operator "" s( const wchar_t *str, size_t len ); // C++14 462basic_string<char16_t> operator "" s( const char16_t *str, size_t len ); // C++14 463basic_string<char32_t> operator "" s( const char32_t *str, size_t len ); // C++14 464 465} // std 466 467*/ 468 469#include <__config> 470#include <string_view> 471#include <iosfwd> 472#include <cstring> 473#include <cstdio> // For EOF. 474#include <cwchar> 475#include <algorithm> 476#include <iterator> 477#include <utility> 478#include <memory> 479#include <stdexcept> 480#include <type_traits> 481#include <initializer_list> 482#include <__functional_base> 483#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 484#include <cstdint> 485#endif 486 487#include <__undef_min_max> 488 489#include <__debug> 490 491#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 492#pragma GCC system_header 493#endif 494 495_LIBCPP_BEGIN_NAMESPACE_STD 496 497// fpos 498 499template <class _StateT> 500class _LIBCPP_TEMPLATE_VIS fpos 501{ 502private: 503 _StateT __st_; 504 streamoff __off_; 505public: 506 _LIBCPP_INLINE_VISIBILITY fpos(streamoff __off = streamoff()) : __st_(), __off_(__off) {} 507 508 _LIBCPP_INLINE_VISIBILITY operator streamoff() const {return __off_;} 509 510 _LIBCPP_INLINE_VISIBILITY _StateT state() const {return __st_;} 511 _LIBCPP_INLINE_VISIBILITY void state(_StateT __st) {__st_ = __st;} 512 513 _LIBCPP_INLINE_VISIBILITY fpos& operator+=(streamoff __off) {__off_ += __off; return *this;} 514 _LIBCPP_INLINE_VISIBILITY fpos operator+ (streamoff __off) const {fpos __t(*this); __t += __off; return __t;} 515 _LIBCPP_INLINE_VISIBILITY fpos& operator-=(streamoff __off) {__off_ -= __off; return *this;} 516 _LIBCPP_INLINE_VISIBILITY fpos operator- (streamoff __off) const {fpos __t(*this); __t -= __off; return __t;} 517}; 518 519template <class _StateT> 520inline _LIBCPP_INLINE_VISIBILITY 521streamoff operator-(const fpos<_StateT>& __x, const fpos<_StateT>& __y) 522 {return streamoff(__x) - streamoff(__y);} 523 524template <class _StateT> 525inline _LIBCPP_INLINE_VISIBILITY 526bool operator==(const fpos<_StateT>& __x, const fpos<_StateT>& __y) 527 {return streamoff(__x) == streamoff(__y);} 528 529template <class _StateT> 530inline _LIBCPP_INLINE_VISIBILITY 531bool operator!=(const fpos<_StateT>& __x, const fpos<_StateT>& __y) 532 {return streamoff(__x) != streamoff(__y);} 533 534// basic_string 535 536template<class _CharT, class _Traits, class _Allocator> 537basic_string<_CharT, _Traits, _Allocator> 538operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, 539 const basic_string<_CharT, _Traits, _Allocator>& __y); 540 541template<class _CharT, class _Traits, class _Allocator> 542basic_string<_CharT, _Traits, _Allocator> 543operator+(const _CharT* __x, const basic_string<_CharT,_Traits,_Allocator>& __y); 544 545template<class _CharT, class _Traits, class _Allocator> 546basic_string<_CharT, _Traits, _Allocator> 547operator+(_CharT __x, const basic_string<_CharT,_Traits,_Allocator>& __y); 548 549template<class _CharT, class _Traits, class _Allocator> 550basic_string<_CharT, _Traits, _Allocator> 551operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, const _CharT* __y); 552 553template<class _CharT, class _Traits, class _Allocator> 554basic_string<_CharT, _Traits, _Allocator> 555operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, _CharT __y); 556 557template <bool> 558class _LIBCPP_TEMPLATE_VIS __basic_string_common 559{ 560protected: 561 _LIBCPP_NORETURN void __throw_length_error() const; 562 _LIBCPP_NORETURN void __throw_out_of_range() const; 563}; 564 565template <bool __b> 566void 567__basic_string_common<__b>::__throw_length_error() const 568{ 569 _VSTD::__throw_length_error("basic_string"); 570} 571 572template <bool __b> 573void 574__basic_string_common<__b>::__throw_out_of_range() const 575{ 576 _VSTD::__throw_out_of_range("basic_string"); 577} 578 579#ifdef _LIBCPP_MSVC 580#pragma warning( push ) 581#pragma warning( disable: 4231 ) 582#endif // _LIBCPP_MSVC 583_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __basic_string_common<true>) 584#ifdef _LIBCPP_MSVC 585#pragma warning( pop ) 586#endif // _LIBCPP_MSVC 587 588#ifdef _LIBCPP_NO_EXCEPTIONS 589template <class _Iter> 590struct __libcpp_string_gets_noexcept_iterator_impl : public true_type {}; 591#elif defined(_LIBCPP_HAS_NO_NOEXCEPT) 592template <class _Iter> 593struct __libcpp_string_gets_noexcept_iterator_impl : public false_type {}; 594#else 595template <class _Iter, bool = __is_forward_iterator<_Iter>::value> 596struct __libcpp_string_gets_noexcept_iterator_impl : public _LIBCPP_BOOL_CONSTANT(( 597 noexcept(++(declval<_Iter&>())) && 598 is_nothrow_assignable<_Iter&, _Iter>::value && 599 noexcept(declval<_Iter>() == declval<_Iter>()) && 600 noexcept(*declval<_Iter>()) 601)) {}; 602 603template <class _Iter> 604struct __libcpp_string_gets_noexcept_iterator_impl<_Iter, false> : public false_type {}; 605#endif 606 607 608template <class _Iter> 609struct __libcpp_string_gets_noexcept_iterator 610 : public _LIBCPP_BOOL_CONSTANT(__libcpp_is_trivial_iterator<_Iter>::value || __libcpp_string_gets_noexcept_iterator_impl<_Iter>::value) {}; 611 612template <class _CharT, class _Traits, class _Tp> 613struct __can_be_converted_to_string_view : public _LIBCPP_BOOL_CONSTANT( 614 ( is_convertible<const _Tp&, basic_string_view<_CharT, _Traits> >::value && 615 !is_convertible<const _Tp&, const _CharT*>::value)) {}; 616 617#ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 618 619template <class _CharT, size_t = sizeof(_CharT)> 620struct __padding 621{ 622 unsigned char __xx[sizeof(_CharT)-1]; 623}; 624 625template <class _CharT> 626struct __padding<_CharT, 1> 627{ 628}; 629 630#endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 631 632template<class _CharT, class _Traits, class _Allocator> 633class _LIBCPP_TEMPLATE_VIS basic_string 634 : private __basic_string_common<true> 635{ 636public: 637 typedef basic_string __self; 638 typedef basic_string_view<_CharT, _Traits> __self_view; 639 typedef _Traits traits_type; 640 typedef typename traits_type::char_type value_type; 641 typedef _Allocator allocator_type; 642 typedef allocator_traits<allocator_type> __alloc_traits; 643 typedef typename __alloc_traits::size_type size_type; 644 typedef typename __alloc_traits::difference_type difference_type; 645 typedef value_type& reference; 646 typedef const value_type& const_reference; 647 typedef typename __alloc_traits::pointer pointer; 648 typedef typename __alloc_traits::const_pointer const_pointer; 649 650 static_assert(is_pod<value_type>::value, "Character type of basic_string must be a POD"); 651 static_assert((is_same<_CharT, value_type>::value), 652 "traits_type::char_type must be the same type as CharT"); 653 static_assert((is_same<typename allocator_type::value_type, value_type>::value), 654 "Allocator::value_type must be same type as value_type"); 655#if defined(_LIBCPP_RAW_ITERATORS) 656 typedef pointer iterator; 657 typedef const_pointer const_iterator; 658#else // defined(_LIBCPP_RAW_ITERATORS) 659 typedef __wrap_iter<pointer> iterator; 660 typedef __wrap_iter<const_pointer> const_iterator; 661#endif // defined(_LIBCPP_RAW_ITERATORS) 662 typedef _VSTD::reverse_iterator<iterator> reverse_iterator; 663 typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator; 664 665private: 666 667#ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 668 669 struct __long 670 { 671 pointer __data_; 672 size_type __size_; 673 size_type __cap_; 674 }; 675 676#if _LIBCPP_BIG_ENDIAN 677 enum {__short_mask = 0x01}; 678 enum {__long_mask = 0x1ul}; 679#else // _LIBCPP_BIG_ENDIAN 680 enum {__short_mask = 0x80}; 681 enum {__long_mask = ~(size_type(~0) >> 1)}; 682#endif // _LIBCPP_BIG_ENDIAN 683 684 enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ? 685 (sizeof(__long) - 1)/sizeof(value_type) : 2}; 686 687 struct __short 688 { 689 value_type __data_[__min_cap]; 690 struct 691 : __padding<value_type> 692 { 693 unsigned char __size_; 694 }; 695 }; 696 697#else 698 699 struct __long 700 { 701 size_type __cap_; 702 size_type __size_; 703 pointer __data_; 704 }; 705 706#if _LIBCPP_BIG_ENDIAN 707 enum {__short_mask = 0x80}; 708 enum {__long_mask = ~(size_type(~0) >> 1)}; 709#else // _LIBCPP_BIG_ENDIAN 710 enum {__short_mask = 0x01}; 711 enum {__long_mask = 0x1ul}; 712#endif // _LIBCPP_BIG_ENDIAN 713 714 enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ? 715 (sizeof(__long) - 1)/sizeof(value_type) : 2}; 716 717 struct __short 718 { 719 union 720 { 721 unsigned char __size_; 722 value_type __lx; 723 }; 724 value_type __data_[__min_cap]; 725 }; 726 727#endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 728 729 union __ulx{__long __lx; __short __lxx;}; 730 731 enum {__n_words = sizeof(__ulx) / sizeof(size_type)}; 732 733 struct __raw 734 { 735 size_type __words[__n_words]; 736 }; 737 738 struct __rep 739 { 740 union 741 { 742 __long __l; 743 __short __s; 744 __raw __r; 745 }; 746 }; 747 748 __compressed_pair<__rep, allocator_type> __r_; 749 750public: 751 static const size_type npos = -1; 752 753 _LIBCPP_INLINE_VISIBILITY basic_string() 754 _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value); 755 756 _LIBCPP_INLINE_VISIBILITY explicit basic_string(const allocator_type& __a) 757#if _LIBCPP_STD_VER <= 14 758 _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value); 759#else 760 _NOEXCEPT; 761#endif 762 763 basic_string(const basic_string& __str); 764 basic_string(const basic_string& __str, const allocator_type& __a); 765 766#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 767 _LIBCPP_INLINE_VISIBILITY 768 basic_string(basic_string&& __str) 769#if _LIBCPP_STD_VER <= 14 770 _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value); 771#else 772 _NOEXCEPT; 773#endif 774 775 _LIBCPP_INLINE_VISIBILITY 776 basic_string(basic_string&& __str, const allocator_type& __a); 777#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 778 _LIBCPP_INLINE_VISIBILITY basic_string(const _CharT* __s); 779 _LIBCPP_INLINE_VISIBILITY 780 basic_string(const _CharT* __s, const _Allocator& __a); 781 _LIBCPP_INLINE_VISIBILITY 782 basic_string(const _CharT* __s, size_type __n); 783 _LIBCPP_INLINE_VISIBILITY 784 basic_string(const _CharT* __s, size_type __n, const _Allocator& __a); 785 _LIBCPP_INLINE_VISIBILITY 786 basic_string(size_type __n, _CharT __c); 787 _LIBCPP_INLINE_VISIBILITY 788 basic_string(size_type __n, _CharT __c, const _Allocator& __a); 789 basic_string(const basic_string& __str, size_type __pos, size_type __n, 790 const _Allocator& __a = _Allocator()); 791 _LIBCPP_INLINE_VISIBILITY 792 basic_string(const basic_string& __str, size_type __pos, 793 const _Allocator& __a = _Allocator()); 794 template<class _Tp> 795 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 796 basic_string(const _Tp& __t, size_type __pos, size_type __n, 797 const allocator_type& __a = allocator_type(), 798 typename enable_if<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, void>::type* = 0); 799 _LIBCPP_INLINE_VISIBILITY explicit 800 basic_string(__self_view __sv); 801 _LIBCPP_INLINE_VISIBILITY 802 basic_string(__self_view __sv, const _Allocator& __a); 803 template<class _InputIterator> 804 _LIBCPP_INLINE_VISIBILITY 805 basic_string(_InputIterator __first, _InputIterator __last); 806 template<class _InputIterator> 807 _LIBCPP_INLINE_VISIBILITY 808 basic_string(_InputIterator __first, _InputIterator __last, const allocator_type& __a); 809#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 810 _LIBCPP_INLINE_VISIBILITY 811 basic_string(initializer_list<_CharT> __il); 812 _LIBCPP_INLINE_VISIBILITY 813 basic_string(initializer_list<_CharT> __il, const _Allocator& __a); 814#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 815 816 inline ~basic_string(); 817 818 _LIBCPP_INLINE_VISIBILITY 819 operator __self_view() const _NOEXCEPT { return __self_view(data(), size()); } 820 821 basic_string& operator=(const basic_string& __str); 822 823#ifndef _LIBCPP_CXX03_LANG 824 template <class = void> 825#endif 826 _LIBCPP_INLINE_VISIBILITY 827 basic_string& operator=(__self_view __sv) {return assign(__sv);} 828#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 829 _LIBCPP_INLINE_VISIBILITY 830 basic_string& operator=(basic_string&& __str) 831 _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)); 832#endif 833 _LIBCPP_INLINE_VISIBILITY basic_string& operator=(const value_type* __s) {return assign(__s);} 834 basic_string& operator=(value_type __c); 835#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 836 _LIBCPP_INLINE_VISIBILITY 837 basic_string& operator=(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());} 838#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 839 840#if _LIBCPP_DEBUG_LEVEL >= 2 841 _LIBCPP_INLINE_VISIBILITY 842 iterator begin() _NOEXCEPT 843 {return iterator(this, __get_pointer());} 844 _LIBCPP_INLINE_VISIBILITY 845 const_iterator begin() const _NOEXCEPT 846 {return const_iterator(this, __get_pointer());} 847 _LIBCPP_INLINE_VISIBILITY 848 iterator end() _NOEXCEPT 849 {return iterator(this, __get_pointer() + size());} 850 _LIBCPP_INLINE_VISIBILITY 851 const_iterator end() const _NOEXCEPT 852 {return const_iterator(this, __get_pointer() + size());} 853#else 854 _LIBCPP_INLINE_VISIBILITY 855 iterator begin() _NOEXCEPT 856 {return iterator(__get_pointer());} 857 _LIBCPP_INLINE_VISIBILITY 858 const_iterator begin() const _NOEXCEPT 859 {return const_iterator(__get_pointer());} 860 _LIBCPP_INLINE_VISIBILITY 861 iterator end() _NOEXCEPT 862 {return iterator(__get_pointer() + size());} 863 _LIBCPP_INLINE_VISIBILITY 864 const_iterator end() const _NOEXCEPT 865 {return const_iterator(__get_pointer() + size());} 866#endif // _LIBCPP_DEBUG_LEVEL >= 2 867 _LIBCPP_INLINE_VISIBILITY 868 reverse_iterator rbegin() _NOEXCEPT 869 {return reverse_iterator(end());} 870 _LIBCPP_INLINE_VISIBILITY 871 const_reverse_iterator rbegin() const _NOEXCEPT 872 {return const_reverse_iterator(end());} 873 _LIBCPP_INLINE_VISIBILITY 874 reverse_iterator rend() _NOEXCEPT 875 {return reverse_iterator(begin());} 876 _LIBCPP_INLINE_VISIBILITY 877 const_reverse_iterator rend() const _NOEXCEPT 878 {return const_reverse_iterator(begin());} 879 880 _LIBCPP_INLINE_VISIBILITY 881 const_iterator cbegin() const _NOEXCEPT 882 {return begin();} 883 _LIBCPP_INLINE_VISIBILITY 884 const_iterator cend() const _NOEXCEPT 885 {return end();} 886 _LIBCPP_INLINE_VISIBILITY 887 const_reverse_iterator crbegin() const _NOEXCEPT 888 {return rbegin();} 889 _LIBCPP_INLINE_VISIBILITY 890 const_reverse_iterator crend() const _NOEXCEPT 891 {return rend();} 892 893 _LIBCPP_INLINE_VISIBILITY size_type size() const _NOEXCEPT 894 {return __is_long() ? __get_long_size() : __get_short_size();} 895 _LIBCPP_INLINE_VISIBILITY size_type length() const _NOEXCEPT {return size();} 896 _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT; 897 _LIBCPP_INLINE_VISIBILITY size_type capacity() const _NOEXCEPT 898 {return (__is_long() ? __get_long_cap() 899 : static_cast<size_type>(__min_cap)) - 1;} 900 901 void resize(size_type __n, value_type __c); 902 _LIBCPP_INLINE_VISIBILITY void resize(size_type __n) {resize(__n, value_type());} 903 904 void reserve(size_type res_arg = 0); 905 _LIBCPP_INLINE_VISIBILITY 906 void shrink_to_fit() _NOEXCEPT {reserve();} 907 _LIBCPP_INLINE_VISIBILITY 908 void clear() _NOEXCEPT; 909 _LIBCPP_INLINE_VISIBILITY bool empty() const _NOEXCEPT {return size() == 0;} 910 911 _LIBCPP_INLINE_VISIBILITY const_reference operator[](size_type __pos) const _NOEXCEPT; 912 _LIBCPP_INLINE_VISIBILITY reference operator[](size_type __pos) _NOEXCEPT; 913 914 const_reference at(size_type __n) const; 915 reference at(size_type __n); 916 917 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(const basic_string& __str) {return append(__str);} 918 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(__self_view __sv) {return append(__sv);} 919 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(const value_type* __s) {return append(__s);} 920 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(value_type __c) {push_back(__c); return *this;} 921#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 922 _LIBCPP_INLINE_VISIBILITY basic_string& operator+=(initializer_list<value_type> __il) {return append(__il);} 923#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 924 925 _LIBCPP_INLINE_VISIBILITY 926 basic_string& append(const basic_string& __str); 927 _LIBCPP_INLINE_VISIBILITY 928 basic_string& append(__self_view __sv) { return append(__sv.data(), __sv.size()); } 929 basic_string& append(const basic_string& __str, size_type __pos, size_type __n=npos); 930 template <class _Tp> 931 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 932 typename enable_if 933 < 934 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 935 basic_string& 936 >::type 937 append(const _Tp& __t, size_type __pos, size_type __n=npos); 938 basic_string& append(const value_type* __s, size_type __n); 939 basic_string& append(const value_type* __s); 940 basic_string& append(size_type __n, value_type __c); 941 template <class _ForwardIterator> 942 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 943 basic_string& __append_forward_unsafe(_ForwardIterator, _ForwardIterator); 944 template<class _InputIterator> 945 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 946 typename enable_if 947 < 948 __is_exactly_input_iterator<_InputIterator>::value 949 || !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value, 950 basic_string& 951 >::type 952 _LIBCPP_INLINE_VISIBILITY 953 append(_InputIterator __first, _InputIterator __last) { 954 const basic_string __temp (__first, __last, __alloc()); 955 append(__temp.data(), __temp.size()); 956 return *this; 957 } 958 template<class _ForwardIterator> 959 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 960 typename enable_if 961 < 962 __is_forward_iterator<_ForwardIterator>::value 963 && __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value, 964 basic_string& 965 >::type 966 _LIBCPP_INLINE_VISIBILITY 967 append(_ForwardIterator __first, _ForwardIterator __last) { 968 return __append_forward_unsafe(__first, __last); 969 } 970 971#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 972 _LIBCPP_INLINE_VISIBILITY 973 basic_string& append(initializer_list<value_type> __il) {return append(__il.begin(), __il.size());} 974#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 975 976 void push_back(value_type __c); 977 _LIBCPP_INLINE_VISIBILITY 978 void pop_back(); 979 _LIBCPP_INLINE_VISIBILITY reference front(); 980 _LIBCPP_INLINE_VISIBILITY const_reference front() const; 981 _LIBCPP_INLINE_VISIBILITY reference back(); 982 _LIBCPP_INLINE_VISIBILITY const_reference back() const; 983 984 _LIBCPP_INLINE_VISIBILITY 985 basic_string& assign(__self_view __sv) { return assign(__sv.data(), __sv.size()); } 986 _LIBCPP_INLINE_VISIBILITY 987 basic_string& assign(const basic_string& __str) { return *this = __str; } 988#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 989 _LIBCPP_INLINE_VISIBILITY 990 basic_string& assign(basic_string&& str) 991 _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) 992 {*this = _VSTD::move(str); return *this;} 993#endif 994 basic_string& assign(const basic_string& __str, size_type __pos, size_type __n=npos); 995 template <class _Tp> 996 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 997 typename enable_if 998 < 999 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 1000 basic_string& 1001 >::type 1002 assign(const _Tp & __t, size_type pos, size_type n=npos); 1003 basic_string& assign(const value_type* __s, size_type __n); 1004 basic_string& assign(const value_type* __s); 1005 basic_string& assign(size_type __n, value_type __c); 1006 template<class _InputIterator> 1007 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1008 typename enable_if 1009 < 1010 __is_exactly_input_iterator<_InputIterator>::value 1011 || !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value, 1012 basic_string& 1013 >::type 1014 assign(_InputIterator __first, _InputIterator __last); 1015 template<class _ForwardIterator> 1016 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1017 typename enable_if 1018 < 1019 __is_forward_iterator<_ForwardIterator>::value 1020 && __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value, 1021 basic_string& 1022 >::type 1023 assign(_ForwardIterator __first, _ForwardIterator __last); 1024#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1025 _LIBCPP_INLINE_VISIBILITY 1026 basic_string& assign(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());} 1027#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1028 1029 _LIBCPP_INLINE_VISIBILITY 1030 basic_string& insert(size_type __pos1, const basic_string& __str); 1031 _LIBCPP_INLINE_VISIBILITY 1032 basic_string& insert(size_type __pos1, __self_view __sv) { return insert(__pos1, __sv.data(), __sv.size()); } 1033 template <class _Tp> 1034 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1035 typename enable_if 1036 < 1037 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 1038 basic_string& 1039 >::type 1040 insert(size_type __pos1, const _Tp& __t, size_type __pos2, size_type __n=npos); 1041 basic_string& insert(size_type __pos1, const basic_string& __str, size_type __pos2, size_type __n=npos); 1042 basic_string& insert(size_type __pos, const value_type* __s, size_type __n); 1043 basic_string& insert(size_type __pos, const value_type* __s); 1044 basic_string& insert(size_type __pos, size_type __n, value_type __c); 1045 iterator insert(const_iterator __pos, value_type __c); 1046 _LIBCPP_INLINE_VISIBILITY 1047 iterator insert(const_iterator __pos, size_type __n, value_type __c); 1048 template<class _InputIterator> 1049 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1050 typename enable_if 1051 < 1052 __is_exactly_input_iterator<_InputIterator>::value 1053 || !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value, 1054 iterator 1055 >::type 1056 insert(const_iterator __pos, _InputIterator __first, _InputIterator __last); 1057 template<class _ForwardIterator> 1058 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1059 typename enable_if 1060 < 1061 __is_forward_iterator<_ForwardIterator>::value 1062 && __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value, 1063 iterator 1064 >::type 1065 insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last); 1066#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1067 _LIBCPP_INLINE_VISIBILITY 1068 iterator insert(const_iterator __pos, initializer_list<value_type> __il) 1069 {return insert(__pos, __il.begin(), __il.end());} 1070#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1071 1072 basic_string& erase(size_type __pos = 0, size_type __n = npos); 1073 _LIBCPP_INLINE_VISIBILITY 1074 iterator erase(const_iterator __pos); 1075 _LIBCPP_INLINE_VISIBILITY 1076 iterator erase(const_iterator __first, const_iterator __last); 1077 1078 _LIBCPP_INLINE_VISIBILITY 1079 basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str); 1080 _LIBCPP_INLINE_VISIBILITY 1081 basic_string& replace(size_type __pos1, size_type __n1, __self_view __sv) { return replace(__pos1, __n1, __sv.data(), __sv.size()); } 1082 basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos); 1083 template <class _Tp> 1084 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1085 typename enable_if 1086 < 1087 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 1088 basic_string& 1089 >::type 1090 replace(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2=npos); 1091 basic_string& replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2); 1092 basic_string& replace(size_type __pos, size_type __n1, const value_type* __s); 1093 basic_string& replace(size_type __pos, size_type __n1, size_type __n2, value_type __c); 1094 _LIBCPP_INLINE_VISIBILITY 1095 basic_string& replace(const_iterator __i1, const_iterator __i2, const basic_string& __str); 1096 _LIBCPP_INLINE_VISIBILITY 1097 basic_string& replace(const_iterator __i1, const_iterator __i2, __self_view __sv) { return replace(__i1 - begin(), __i2 - __i1, __sv); } 1098 _LIBCPP_INLINE_VISIBILITY 1099 basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n); 1100 _LIBCPP_INLINE_VISIBILITY 1101 basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s); 1102 _LIBCPP_INLINE_VISIBILITY 1103 basic_string& replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c); 1104 template<class _InputIterator> 1105 _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 1106 typename enable_if 1107 < 1108 __is_input_iterator<_InputIterator>::value, 1109 basic_string& 1110 >::type 1111 replace(const_iterator __i1, const_iterator __i2, _InputIterator __j1, _InputIterator __j2); 1112#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1113 _LIBCPP_INLINE_VISIBILITY 1114 basic_string& replace(const_iterator __i1, const_iterator __i2, initializer_list<value_type> __il) 1115 {return replace(__i1, __i2, __il.begin(), __il.end());} 1116#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1117 1118 size_type copy(value_type* __s, size_type __n, size_type __pos = 0) const; 1119 _LIBCPP_INLINE_VISIBILITY 1120 basic_string substr(size_type __pos = 0, size_type __n = npos) const; 1121 1122 _LIBCPP_INLINE_VISIBILITY 1123 void swap(basic_string& __str) 1124#if _LIBCPP_STD_VER >= 14 1125 _NOEXCEPT_DEBUG; 1126#else 1127 _NOEXCEPT_DEBUG_(!__alloc_traits::propagate_on_container_swap::value || 1128 __is_nothrow_swappable<allocator_type>::value); 1129#endif 1130 1131 _LIBCPP_INLINE_VISIBILITY 1132 const value_type* c_str() const _NOEXCEPT {return data();} 1133 _LIBCPP_INLINE_VISIBILITY 1134 const value_type* data() const _NOEXCEPT {return _VSTD::__to_raw_pointer(__get_pointer());} 1135#if _LIBCPP_STD_VER > 14 1136 _LIBCPP_INLINE_VISIBILITY 1137 value_type* data() _NOEXCEPT {return _VSTD::__to_raw_pointer(__get_pointer());} 1138#endif 1139 1140 _LIBCPP_INLINE_VISIBILITY 1141 allocator_type get_allocator() const _NOEXCEPT {return __alloc();} 1142 1143 _LIBCPP_INLINE_VISIBILITY 1144 size_type find(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; 1145 _LIBCPP_INLINE_VISIBILITY 1146 size_type find(__self_view __sv, size_type __pos = 0) const _NOEXCEPT; 1147 size_type find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; 1148 _LIBCPP_INLINE_VISIBILITY 1149 size_type find(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; 1150 size_type find(value_type __c, size_type __pos = 0) const _NOEXCEPT; 1151 1152 _LIBCPP_INLINE_VISIBILITY 1153 size_type rfind(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; 1154 _LIBCPP_INLINE_VISIBILITY 1155 size_type rfind(__self_view __sv, size_type __pos = 0) const _NOEXCEPT; 1156 size_type rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; 1157 _LIBCPP_INLINE_VISIBILITY 1158 size_type rfind(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; 1159 size_type rfind(value_type __c, size_type __pos = npos) const _NOEXCEPT; 1160 1161 _LIBCPP_INLINE_VISIBILITY 1162 size_type find_first_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; 1163 _LIBCPP_INLINE_VISIBILITY 1164 size_type find_first_of(__self_view __sv, size_type __pos = 0) const _NOEXCEPT; 1165 size_type find_first_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; 1166 _LIBCPP_INLINE_VISIBILITY 1167 size_type find_first_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; 1168 _LIBCPP_INLINE_VISIBILITY 1169 size_type find_first_of(value_type __c, size_type __pos = 0) const _NOEXCEPT; 1170 1171 _LIBCPP_INLINE_VISIBILITY 1172 size_type find_last_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; 1173 _LIBCPP_INLINE_VISIBILITY 1174 size_type find_last_of(__self_view __sv, size_type __pos = 0) const _NOEXCEPT; 1175 size_type find_last_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; 1176 _LIBCPP_INLINE_VISIBILITY 1177 size_type find_last_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; 1178 _LIBCPP_INLINE_VISIBILITY 1179 size_type find_last_of(value_type __c, size_type __pos = npos) const _NOEXCEPT; 1180 1181 _LIBCPP_INLINE_VISIBILITY 1182 size_type find_first_not_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; 1183 _LIBCPP_INLINE_VISIBILITY 1184 size_type find_first_not_of(__self_view __sv, size_type __pos = 0) const _NOEXCEPT; 1185 size_type find_first_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; 1186 _LIBCPP_INLINE_VISIBILITY 1187 size_type find_first_not_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; 1188 _LIBCPP_INLINE_VISIBILITY 1189 size_type find_first_not_of(value_type __c, size_type __pos = 0) const _NOEXCEPT; 1190 1191 _LIBCPP_INLINE_VISIBILITY 1192 size_type find_last_not_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; 1193 _LIBCPP_INLINE_VISIBILITY 1194 size_type find_last_not_of(__self_view __sv, size_type __pos = 0) const _NOEXCEPT; 1195 size_type find_last_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; 1196 _LIBCPP_INLINE_VISIBILITY 1197 size_type find_last_not_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; 1198 _LIBCPP_INLINE_VISIBILITY 1199 size_type find_last_not_of(value_type __c, size_type __pos = npos) const _NOEXCEPT; 1200 1201 _LIBCPP_INLINE_VISIBILITY 1202 int compare(const basic_string& __str) const _NOEXCEPT; 1203 _LIBCPP_INLINE_VISIBILITY 1204 int compare(__self_view __sv) const _NOEXCEPT; 1205 _LIBCPP_INLINE_VISIBILITY 1206 int compare(size_type __pos1, size_type __n1, __self_view __sv) const; 1207 _LIBCPP_INLINE_VISIBILITY 1208 int compare(size_type __pos1, size_type __n1, const basic_string& __str) const; 1209 int compare(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos) const; 1210 template <class _Tp> 1211 inline _LIBCPP_INLINE_VISIBILITY 1212 typename enable_if 1213 < 1214 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 1215 int 1216 >::type 1217 compare(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2=npos) const; 1218 int compare(const value_type* __s) const _NOEXCEPT; 1219 int compare(size_type __pos1, size_type __n1, const value_type* __s) const; 1220 int compare(size_type __pos1, size_type __n1, const value_type* __s, size_type __n2) const; 1221 1222 _LIBCPP_INLINE_VISIBILITY bool __invariants() const; 1223 1224 _LIBCPP_INLINE_VISIBILITY 1225 bool __is_long() const _NOEXCEPT 1226 {return bool(__r_.first().__s.__size_ & __short_mask);} 1227 1228#if _LIBCPP_DEBUG_LEVEL >= 2 1229 1230 bool __dereferenceable(const const_iterator* __i) const; 1231 bool __decrementable(const const_iterator* __i) const; 1232 bool __addable(const const_iterator* __i, ptrdiff_t __n) const; 1233 bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const; 1234 1235#endif // _LIBCPP_DEBUG_LEVEL >= 2 1236 1237private: 1238 _LIBCPP_INLINE_VISIBILITY 1239 allocator_type& __alloc() _NOEXCEPT 1240 {return __r_.second();} 1241 _LIBCPP_INLINE_VISIBILITY 1242 const allocator_type& __alloc() const _NOEXCEPT 1243 {return __r_.second();} 1244 1245#ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 1246 1247 _LIBCPP_INLINE_VISIBILITY 1248 void __set_short_size(size_type __s) _NOEXCEPT 1249# if _LIBCPP_BIG_ENDIAN 1250 {__r_.first().__s.__size_ = (unsigned char)(__s << 1);} 1251# else 1252 {__r_.first().__s.__size_ = (unsigned char)(__s);} 1253# endif 1254 1255 _LIBCPP_INLINE_VISIBILITY 1256 size_type __get_short_size() const _NOEXCEPT 1257# if _LIBCPP_BIG_ENDIAN 1258 {return __r_.first().__s.__size_ >> 1;} 1259# else 1260 {return __r_.first().__s.__size_;} 1261# endif 1262 1263#else // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 1264 1265 _LIBCPP_INLINE_VISIBILITY 1266 void __set_short_size(size_type __s) _NOEXCEPT 1267# if _LIBCPP_BIG_ENDIAN 1268 {__r_.first().__s.__size_ = (unsigned char)(__s);} 1269# else 1270 {__r_.first().__s.__size_ = (unsigned char)(__s << 1);} 1271# endif 1272 1273 _LIBCPP_INLINE_VISIBILITY 1274 size_type __get_short_size() const _NOEXCEPT 1275# if _LIBCPP_BIG_ENDIAN 1276 {return __r_.first().__s.__size_;} 1277# else 1278 {return __r_.first().__s.__size_ >> 1;} 1279# endif 1280 1281#endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 1282 1283 _LIBCPP_INLINE_VISIBILITY 1284 void __set_long_size(size_type __s) _NOEXCEPT 1285 {__r_.first().__l.__size_ = __s;} 1286 _LIBCPP_INLINE_VISIBILITY 1287 size_type __get_long_size() const _NOEXCEPT 1288 {return __r_.first().__l.__size_;} 1289 _LIBCPP_INLINE_VISIBILITY 1290 void __set_size(size_type __s) _NOEXCEPT 1291 {if (__is_long()) __set_long_size(__s); else __set_short_size(__s);} 1292 1293 _LIBCPP_INLINE_VISIBILITY 1294 void __set_long_cap(size_type __s) _NOEXCEPT 1295 {__r_.first().__l.__cap_ = __long_mask | __s;} 1296 _LIBCPP_INLINE_VISIBILITY 1297 size_type __get_long_cap() const _NOEXCEPT 1298 {return __r_.first().__l.__cap_ & size_type(~__long_mask);} 1299 1300 _LIBCPP_INLINE_VISIBILITY 1301 void __set_long_pointer(pointer __p) _NOEXCEPT 1302 {__r_.first().__l.__data_ = __p;} 1303 _LIBCPP_INLINE_VISIBILITY 1304 pointer __get_long_pointer() _NOEXCEPT 1305 {return __r_.first().__l.__data_;} 1306 _LIBCPP_INLINE_VISIBILITY 1307 const_pointer __get_long_pointer() const _NOEXCEPT 1308 {return __r_.first().__l.__data_;} 1309 _LIBCPP_INLINE_VISIBILITY 1310 pointer __get_short_pointer() _NOEXCEPT 1311 {return pointer_traits<pointer>::pointer_to(__r_.first().__s.__data_[0]);} 1312 _LIBCPP_INLINE_VISIBILITY 1313 const_pointer __get_short_pointer() const _NOEXCEPT 1314 {return pointer_traits<const_pointer>::pointer_to(__r_.first().__s.__data_[0]);} 1315 _LIBCPP_INLINE_VISIBILITY 1316 pointer __get_pointer() _NOEXCEPT 1317 {return __is_long() ? __get_long_pointer() : __get_short_pointer();} 1318 _LIBCPP_INLINE_VISIBILITY 1319 const_pointer __get_pointer() const _NOEXCEPT 1320 {return __is_long() ? __get_long_pointer() : __get_short_pointer();} 1321 1322 _LIBCPP_INLINE_VISIBILITY 1323 void __zero() _NOEXCEPT 1324 { 1325 size_type (&__a)[__n_words] = __r_.first().__r.__words; 1326 for (unsigned __i = 0; __i < __n_words; ++__i) 1327 __a[__i] = 0; 1328 } 1329 1330 template <size_type __a> static 1331 _LIBCPP_INLINE_VISIBILITY 1332 size_type __align_it(size_type __s) _NOEXCEPT 1333 {return (__s + (__a-1)) & ~(__a-1);} 1334 enum {__alignment = 16}; 1335 static _LIBCPP_INLINE_VISIBILITY 1336 size_type __recommend(size_type __s) _NOEXCEPT 1337 {return (__s < __min_cap ? static_cast<size_type>(__min_cap) : 1338 __align_it<sizeof(value_type) < __alignment ? 1339 __alignment/sizeof(value_type) : 1 > (__s+1)) - 1;} 1340 1341 inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 1342 void __init(const value_type* __s, size_type __sz, size_type __reserve); 1343 inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 1344 void __init(const value_type* __s, size_type __sz); 1345 inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 1346 void __init(size_type __n, value_type __c); 1347 1348 template <class _InputIterator> 1349 inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 1350 typename enable_if 1351 < 1352 __is_exactly_input_iterator<_InputIterator>::value, 1353 void 1354 >::type 1355 __init(_InputIterator __first, _InputIterator __last); 1356 1357 template <class _ForwardIterator> 1358 inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 1359 typename enable_if 1360 < 1361 __is_forward_iterator<_ForwardIterator>::value, 1362 void 1363 >::type 1364 __init(_ForwardIterator __first, _ForwardIterator __last); 1365 1366 void __grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz, 1367 size_type __n_copy, size_type __n_del, size_type __n_add = 0); 1368 void __grow_by_and_replace(size_type __old_cap, size_type __delta_cap, size_type __old_sz, 1369 size_type __n_copy, size_type __n_del, 1370 size_type __n_add, const value_type* __p_new_stuff); 1371 1372 _LIBCPP_INLINE_VISIBILITY 1373 void __erase_to_end(size_type __pos); 1374 1375 _LIBCPP_INLINE_VISIBILITY 1376 void __copy_assign_alloc(const basic_string& __str) 1377 {__copy_assign_alloc(__str, integral_constant<bool, 1378 __alloc_traits::propagate_on_container_copy_assignment::value>());} 1379 1380 _LIBCPP_INLINE_VISIBILITY 1381 void __copy_assign_alloc(const basic_string& __str, true_type) 1382 { 1383 if (__alloc() == __str.__alloc()) 1384 __alloc() = __str.__alloc(); 1385 else 1386 { 1387 if (!__str.__is_long()) 1388 { 1389 clear(); 1390 shrink_to_fit(); 1391 __alloc() = __str.__alloc(); 1392 } 1393 else 1394 { 1395 allocator_type __a = __str.__alloc(); 1396 pointer __p = __alloc_traits::allocate(__a, __str.__get_long_cap()); 1397 clear(); 1398 shrink_to_fit(); 1399 __alloc() = _VSTD::move(__a); 1400 __set_long_pointer(__p); 1401 __set_long_cap(__str.__get_long_cap()); 1402 __set_long_size(__str.size()); 1403 } 1404 } 1405 } 1406 1407 _LIBCPP_INLINE_VISIBILITY 1408 void __copy_assign_alloc(const basic_string&, false_type) _NOEXCEPT 1409 {} 1410 1411#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1412 _LIBCPP_INLINE_VISIBILITY 1413 void __move_assign(basic_string& __str, false_type) 1414 _NOEXCEPT_(__alloc_traits::is_always_equal::value); 1415 _LIBCPP_INLINE_VISIBILITY 1416 void __move_assign(basic_string& __str, true_type) 1417#if _LIBCPP_STD_VER > 14 1418 _NOEXCEPT; 1419#else 1420 _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value); 1421#endif 1422#endif 1423 1424 _LIBCPP_INLINE_VISIBILITY 1425 void 1426 __move_assign_alloc(basic_string& __str) 1427 _NOEXCEPT_( 1428 !__alloc_traits::propagate_on_container_move_assignment::value || 1429 is_nothrow_move_assignable<allocator_type>::value) 1430 {__move_assign_alloc(__str, integral_constant<bool, 1431 __alloc_traits::propagate_on_container_move_assignment::value>());} 1432 1433 _LIBCPP_INLINE_VISIBILITY 1434 void __move_assign_alloc(basic_string& __c, true_type) 1435 _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) 1436 { 1437 __alloc() = _VSTD::move(__c.__alloc()); 1438 } 1439 1440 _LIBCPP_INLINE_VISIBILITY 1441 void __move_assign_alloc(basic_string&, false_type) 1442 _NOEXCEPT 1443 {} 1444 1445 _LIBCPP_INLINE_VISIBILITY void __invalidate_all_iterators(); 1446 _LIBCPP_INLINE_VISIBILITY void __invalidate_iterators_past(size_type); 1447 1448 friend basic_string operator+<>(const basic_string&, const basic_string&); 1449 friend basic_string operator+<>(const value_type*, const basic_string&); 1450 friend basic_string operator+<>(value_type, const basic_string&); 1451 friend basic_string operator+<>(const basic_string&, const value_type*); 1452 friend basic_string operator+<>(const basic_string&, value_type); 1453}; 1454 1455template <class _CharT, class _Traits, class _Allocator> 1456inline _LIBCPP_INLINE_VISIBILITY 1457void 1458basic_string<_CharT, _Traits, _Allocator>::__invalidate_all_iterators() 1459{ 1460#if _LIBCPP_DEBUG_LEVEL >= 2 1461 __get_db()->__invalidate_all(this); 1462#endif // _LIBCPP_DEBUG_LEVEL >= 2 1463} 1464 1465template <class _CharT, class _Traits, class _Allocator> 1466inline _LIBCPP_INLINE_VISIBILITY 1467void 1468basic_string<_CharT, _Traits, _Allocator>::__invalidate_iterators_past(size_type 1469#if _LIBCPP_DEBUG_LEVEL >= 2 1470 __pos 1471#endif 1472 ) 1473{ 1474#if _LIBCPP_DEBUG_LEVEL >= 2 1475 __c_node* __c = __get_db()->__find_c_and_lock(this); 1476 if (__c) 1477 { 1478 const_pointer __new_last = __get_pointer() + __pos; 1479 for (__i_node** __p = __c->end_; __p != __c->beg_; ) 1480 { 1481 --__p; 1482 const_iterator* __i = static_cast<const_iterator*>((*__p)->__i_); 1483 if (__i->base() > __new_last) 1484 { 1485 (*__p)->__c_ = nullptr; 1486 if (--__c->end_ != __p) 1487 memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*)); 1488 } 1489 } 1490 __get_db()->unlock(); 1491 } 1492#endif // _LIBCPP_DEBUG_LEVEL >= 2 1493} 1494 1495template <class _CharT, class _Traits, class _Allocator> 1496inline _LIBCPP_INLINE_VISIBILITY 1497basic_string<_CharT, _Traits, _Allocator>::basic_string() 1498 _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) 1499{ 1500#if _LIBCPP_DEBUG_LEVEL >= 2 1501 __get_db()->__insert_c(this); 1502#endif 1503 __zero(); 1504} 1505 1506template <class _CharT, class _Traits, class _Allocator> 1507inline _LIBCPP_INLINE_VISIBILITY 1508basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& __a) 1509#if _LIBCPP_STD_VER <= 14 1510 _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value) 1511#else 1512 _NOEXCEPT 1513#endif 1514: __r_(__a) 1515{ 1516#if _LIBCPP_DEBUG_LEVEL >= 2 1517 __get_db()->__insert_c(this); 1518#endif 1519 __zero(); 1520} 1521 1522template <class _CharT, class _Traits, class _Allocator> 1523void basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, 1524 size_type __sz, 1525 size_type __reserve) 1526{ 1527 if (__reserve > max_size()) 1528 this->__throw_length_error(); 1529 pointer __p; 1530 if (__reserve < __min_cap) 1531 { 1532 __set_short_size(__sz); 1533 __p = __get_short_pointer(); 1534 } 1535 else 1536 { 1537 size_type __cap = __recommend(__reserve); 1538 __p = __alloc_traits::allocate(__alloc(), __cap+1); 1539 __set_long_pointer(__p); 1540 __set_long_cap(__cap+1); 1541 __set_long_size(__sz); 1542 } 1543 traits_type::copy(_VSTD::__to_raw_pointer(__p), __s, __sz); 1544 traits_type::assign(__p[__sz], value_type()); 1545} 1546 1547template <class _CharT, class _Traits, class _Allocator> 1548void 1549basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, size_type __sz) 1550{ 1551 if (__sz > max_size()) 1552 this->__throw_length_error(); 1553 pointer __p; 1554 if (__sz < __min_cap) 1555 { 1556 __set_short_size(__sz); 1557 __p = __get_short_pointer(); 1558 } 1559 else 1560 { 1561 size_type __cap = __recommend(__sz); 1562 __p = __alloc_traits::allocate(__alloc(), __cap+1); 1563 __set_long_pointer(__p); 1564 __set_long_cap(__cap+1); 1565 __set_long_size(__sz); 1566 } 1567 traits_type::copy(_VSTD::__to_raw_pointer(__p), __s, __sz); 1568 traits_type::assign(__p[__sz], value_type()); 1569} 1570 1571template <class _CharT, class _Traits, class _Allocator> 1572inline _LIBCPP_INLINE_VISIBILITY 1573basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s) 1574{ 1575 _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*) detected nullptr"); 1576 __init(__s, traits_type::length(__s)); 1577#if _LIBCPP_DEBUG_LEVEL >= 2 1578 __get_db()->__insert_c(this); 1579#endif 1580} 1581 1582template <class _CharT, class _Traits, class _Allocator> 1583inline _LIBCPP_INLINE_VISIBILITY 1584basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, const _Allocator& __a) 1585 : __r_(__a) 1586{ 1587 _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*, allocator) detected nullptr"); 1588 __init(__s, traits_type::length(__s)); 1589#if _LIBCPP_DEBUG_LEVEL >= 2 1590 __get_db()->__insert_c(this); 1591#endif 1592} 1593 1594template <class _CharT, class _Traits, class _Allocator> 1595inline _LIBCPP_INLINE_VISIBILITY 1596basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, size_type __n) 1597{ 1598 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n) detected nullptr"); 1599 __init(__s, __n); 1600#if _LIBCPP_DEBUG_LEVEL >= 2 1601 __get_db()->__insert_c(this); 1602#endif 1603} 1604 1605template <class _CharT, class _Traits, class _Allocator> 1606inline _LIBCPP_INLINE_VISIBILITY 1607basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, size_type __n, const _Allocator& __a) 1608 : __r_(__a) 1609{ 1610 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n, allocator) detected nullptr"); 1611 __init(__s, __n); 1612#if _LIBCPP_DEBUG_LEVEL >= 2 1613 __get_db()->__insert_c(this); 1614#endif 1615} 1616 1617template <class _CharT, class _Traits, class _Allocator> 1618basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str) 1619 : __r_(__alloc_traits::select_on_container_copy_construction(__str.__alloc())) 1620{ 1621 if (!__str.__is_long()) 1622 __r_.first().__r = __str.__r_.first().__r; 1623 else 1624 __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size()); 1625#if _LIBCPP_DEBUG_LEVEL >= 2 1626 __get_db()->__insert_c(this); 1627#endif 1628} 1629 1630template <class _CharT, class _Traits, class _Allocator> 1631basic_string<_CharT, _Traits, _Allocator>::basic_string( 1632 const basic_string& __str, const allocator_type& __a) 1633 : __r_(__a) 1634{ 1635 if (!__str.__is_long()) 1636 __r_.first().__r = __str.__r_.first().__r; 1637 else 1638 __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size()); 1639#if _LIBCPP_DEBUG_LEVEL >= 2 1640 __get_db()->__insert_c(this); 1641#endif 1642} 1643 1644#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1645 1646template <class _CharT, class _Traits, class _Allocator> 1647inline _LIBCPP_INLINE_VISIBILITY 1648basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str) 1649#if _LIBCPP_STD_VER <= 14 1650 _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) 1651#else 1652 _NOEXCEPT 1653#endif 1654 : __r_(_VSTD::move(__str.__r_)) 1655{ 1656 __str.__zero(); 1657#if _LIBCPP_DEBUG_LEVEL >= 2 1658 __get_db()->__insert_c(this); 1659 if (__is_long()) 1660 __get_db()->swap(this, &__str); 1661#endif 1662} 1663 1664template <class _CharT, class _Traits, class _Allocator> 1665inline _LIBCPP_INLINE_VISIBILITY 1666basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str, const allocator_type& __a) 1667 : __r_(__a) 1668{ 1669 if (__str.__is_long() && __a != __str.__alloc()) // copy, not move 1670 __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size()); 1671 else 1672 { 1673 __r_.first().__r = __str.__r_.first().__r; 1674 __str.__zero(); 1675 } 1676#if _LIBCPP_DEBUG_LEVEL >= 2 1677 __get_db()->__insert_c(this); 1678 if (__is_long()) 1679 __get_db()->swap(this, &__str); 1680#endif 1681} 1682 1683#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1684 1685template <class _CharT, class _Traits, class _Allocator> 1686void 1687basic_string<_CharT, _Traits, _Allocator>::__init(size_type __n, value_type __c) 1688{ 1689 if (__n > max_size()) 1690 this->__throw_length_error(); 1691 pointer __p; 1692 if (__n < __min_cap) 1693 { 1694 __set_short_size(__n); 1695 __p = __get_short_pointer(); 1696 } 1697 else 1698 { 1699 size_type __cap = __recommend(__n); 1700 __p = __alloc_traits::allocate(__alloc(), __cap+1); 1701 __set_long_pointer(__p); 1702 __set_long_cap(__cap+1); 1703 __set_long_size(__n); 1704 } 1705 traits_type::assign(_VSTD::__to_raw_pointer(__p), __n, __c); 1706 traits_type::assign(__p[__n], value_type()); 1707} 1708 1709template <class _CharT, class _Traits, class _Allocator> 1710inline _LIBCPP_INLINE_VISIBILITY 1711basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c) 1712{ 1713 __init(__n, __c); 1714#if _LIBCPP_DEBUG_LEVEL >= 2 1715 __get_db()->__insert_c(this); 1716#endif 1717} 1718 1719template <class _CharT, class _Traits, class _Allocator> 1720inline _LIBCPP_INLINE_VISIBILITY 1721basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c, const _Allocator& __a) 1722 : __r_(__a) 1723{ 1724 __init(__n, __c); 1725#if _LIBCPP_DEBUG_LEVEL >= 2 1726 __get_db()->__insert_c(this); 1727#endif 1728} 1729 1730template <class _CharT, class _Traits, class _Allocator> 1731basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, 1732 size_type __pos, size_type __n, 1733 const _Allocator& __a) 1734 : __r_(__a) 1735{ 1736 size_type __str_sz = __str.size(); 1737 if (__pos > __str_sz) 1738 this->__throw_out_of_range(); 1739 __init(__str.data() + __pos, _VSTD::min(__n, __str_sz - __pos)); 1740#if _LIBCPP_DEBUG_LEVEL >= 2 1741 __get_db()->__insert_c(this); 1742#endif 1743} 1744 1745template <class _CharT, class _Traits, class _Allocator> 1746inline _LIBCPP_INLINE_VISIBILITY 1747basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, size_type __pos, 1748 const _Allocator& __a) 1749 : __r_(__a) 1750{ 1751 size_type __str_sz = __str.size(); 1752 if (__pos > __str_sz) 1753 this->__throw_out_of_range(); 1754 __init(__str.data() + __pos, __str_sz - __pos); 1755#if _LIBCPP_DEBUG_LEVEL >= 2 1756 __get_db()->__insert_c(this); 1757#endif 1758} 1759 1760template <class _CharT, class _Traits, class _Allocator> 1761template <class _Tp> 1762basic_string<_CharT, _Traits, _Allocator>::basic_string( 1763 const _Tp& __t, size_type __pos, size_type __n, const allocator_type& __a, 1764 typename enable_if<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, void>::type *) 1765 : __r_(__a) 1766{ 1767 __self_view __sv = __self_view(__t).substr(__pos, __n); 1768 __init(__sv.data(), __sv.size()); 1769#if _LIBCPP_DEBUG_LEVEL >= 2 1770 __get_db()->__insert_c(this); 1771#endif 1772} 1773 1774template <class _CharT, class _Traits, class _Allocator> 1775inline _LIBCPP_INLINE_VISIBILITY 1776basic_string<_CharT, _Traits, _Allocator>::basic_string(__self_view __sv) 1777{ 1778 __init(__sv.data(), __sv.size()); 1779#if _LIBCPP_DEBUG_LEVEL >= 2 1780 __get_db()->__insert_c(this); 1781#endif 1782} 1783 1784template <class _CharT, class _Traits, class _Allocator> 1785inline _LIBCPP_INLINE_VISIBILITY 1786basic_string<_CharT, _Traits, _Allocator>::basic_string(__self_view __sv, const _Allocator& __a) 1787 : __r_(__a) 1788{ 1789 __init(__sv.data(), __sv.size()); 1790#if _LIBCPP_DEBUG_LEVEL >= 2 1791 __get_db()->__insert_c(this); 1792#endif 1793} 1794 1795template <class _CharT, class _Traits, class _Allocator> 1796template <class _InputIterator> 1797typename enable_if 1798< 1799 __is_exactly_input_iterator<_InputIterator>::value, 1800 void 1801>::type 1802basic_string<_CharT, _Traits, _Allocator>::__init(_InputIterator __first, _InputIterator __last) 1803{ 1804 __zero(); 1805#ifndef _LIBCPP_NO_EXCEPTIONS 1806 try 1807 { 1808#endif // _LIBCPP_NO_EXCEPTIONS 1809 for (; __first != __last; ++__first) 1810 push_back(*__first); 1811#ifndef _LIBCPP_NO_EXCEPTIONS 1812 } 1813 catch (...) 1814 { 1815 if (__is_long()) 1816 __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); 1817 throw; 1818 } 1819#endif // _LIBCPP_NO_EXCEPTIONS 1820} 1821 1822template <class _CharT, class _Traits, class _Allocator> 1823template <class _ForwardIterator> 1824typename enable_if 1825< 1826 __is_forward_iterator<_ForwardIterator>::value, 1827 void 1828>::type 1829basic_string<_CharT, _Traits, _Allocator>::__init(_ForwardIterator __first, _ForwardIterator __last) 1830{ 1831 size_type __sz = static_cast<size_type>(_VSTD::distance(__first, __last)); 1832 if (__sz > max_size()) 1833 this->__throw_length_error(); 1834 pointer __p; 1835 if (__sz < __min_cap) 1836 { 1837 __set_short_size(__sz); 1838 __p = __get_short_pointer(); 1839 } 1840 else 1841 { 1842 size_type __cap = __recommend(__sz); 1843 __p = __alloc_traits::allocate(__alloc(), __cap+1); 1844 __set_long_pointer(__p); 1845 __set_long_cap(__cap+1); 1846 __set_long_size(__sz); 1847 } 1848 for (; __first != __last; ++__first, (void) ++__p) 1849 traits_type::assign(*__p, *__first); 1850 traits_type::assign(*__p, value_type()); 1851} 1852 1853template <class _CharT, class _Traits, class _Allocator> 1854template<class _InputIterator> 1855inline _LIBCPP_INLINE_VISIBILITY 1856basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last) 1857{ 1858 __init(__first, __last); 1859#if _LIBCPP_DEBUG_LEVEL >= 2 1860 __get_db()->__insert_c(this); 1861#endif 1862} 1863 1864template <class _CharT, class _Traits, class _Allocator> 1865template<class _InputIterator> 1866inline _LIBCPP_INLINE_VISIBILITY 1867basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last, 1868 const allocator_type& __a) 1869 : __r_(__a) 1870{ 1871 __init(__first, __last); 1872#if _LIBCPP_DEBUG_LEVEL >= 2 1873 __get_db()->__insert_c(this); 1874#endif 1875} 1876 1877#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1878 1879template <class _CharT, class _Traits, class _Allocator> 1880inline _LIBCPP_INLINE_VISIBILITY 1881basic_string<_CharT, _Traits, _Allocator>::basic_string( 1882 initializer_list<_CharT> __il) 1883{ 1884 __init(__il.begin(), __il.end()); 1885#if _LIBCPP_DEBUG_LEVEL >= 2 1886 __get_db()->__insert_c(this); 1887#endif 1888} 1889 1890template <class _CharT, class _Traits, class _Allocator> 1891inline _LIBCPP_INLINE_VISIBILITY 1892basic_string<_CharT, _Traits, _Allocator>::basic_string( 1893 initializer_list<_CharT> __il, const _Allocator& __a) 1894 1895 : __r_(__a) 1896{ 1897 __init(__il.begin(), __il.end()); 1898#if _LIBCPP_DEBUG_LEVEL >= 2 1899 __get_db()->__insert_c(this); 1900#endif 1901} 1902 1903#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 1904 1905template <class _CharT, class _Traits, class _Allocator> 1906basic_string<_CharT, _Traits, _Allocator>::~basic_string() 1907{ 1908#if _LIBCPP_DEBUG_LEVEL >= 2 1909 __get_db()->__erase_c(this); 1910#endif 1911 if (__is_long()) 1912 __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); 1913} 1914 1915template <class _CharT, class _Traits, class _Allocator> 1916void 1917basic_string<_CharT, _Traits, _Allocator>::__grow_by_and_replace 1918 (size_type __old_cap, size_type __delta_cap, size_type __old_sz, 1919 size_type __n_copy, size_type __n_del, size_type __n_add, const value_type* __p_new_stuff) 1920{ 1921 size_type __ms = max_size(); 1922 if (__delta_cap > __ms - __old_cap - 1) 1923 this->__throw_length_error(); 1924 pointer __old_p = __get_pointer(); 1925 size_type __cap = __old_cap < __ms / 2 - __alignment ? 1926 __recommend(_VSTD::max(__old_cap + __delta_cap, 2 * __old_cap)) : 1927 __ms - 1; 1928 pointer __p = __alloc_traits::allocate(__alloc(), __cap+1); 1929 __invalidate_all_iterators(); 1930 if (__n_copy != 0) 1931 traits_type::copy(_VSTD::__to_raw_pointer(__p), 1932 _VSTD::__to_raw_pointer(__old_p), __n_copy); 1933 if (__n_add != 0) 1934 traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy, __p_new_stuff, __n_add); 1935 size_type __sec_cp_sz = __old_sz - __n_del - __n_copy; 1936 if (__sec_cp_sz != 0) 1937 traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy + __n_add, 1938 _VSTD::__to_raw_pointer(__old_p) + __n_copy + __n_del, __sec_cp_sz); 1939 if (__old_cap+1 != __min_cap) 1940 __alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1); 1941 __set_long_pointer(__p); 1942 __set_long_cap(__cap+1); 1943 __old_sz = __n_copy + __n_add + __sec_cp_sz; 1944 __set_long_size(__old_sz); 1945 traits_type::assign(__p[__old_sz], value_type()); 1946} 1947 1948template <class _CharT, class _Traits, class _Allocator> 1949void 1950basic_string<_CharT, _Traits, _Allocator>::__grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz, 1951 size_type __n_copy, size_type __n_del, size_type __n_add) 1952{ 1953 size_type __ms = max_size(); 1954 if (__delta_cap > __ms - __old_cap) 1955 this->__throw_length_error(); 1956 pointer __old_p = __get_pointer(); 1957 size_type __cap = __old_cap < __ms / 2 - __alignment ? 1958 __recommend(_VSTD::max(__old_cap + __delta_cap, 2 * __old_cap)) : 1959 __ms - 1; 1960 pointer __p = __alloc_traits::allocate(__alloc(), __cap+1); 1961 __invalidate_all_iterators(); 1962 if (__n_copy != 0) 1963 traits_type::copy(_VSTD::__to_raw_pointer(__p), 1964 _VSTD::__to_raw_pointer(__old_p), __n_copy); 1965 size_type __sec_cp_sz = __old_sz - __n_del - __n_copy; 1966 if (__sec_cp_sz != 0) 1967 traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy + __n_add, 1968 _VSTD::__to_raw_pointer(__old_p) + __n_copy + __n_del, 1969 __sec_cp_sz); 1970 if (__old_cap+1 != __min_cap) 1971 __alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1); 1972 __set_long_pointer(__p); 1973 __set_long_cap(__cap+1); 1974} 1975 1976// assign 1977 1978template <class _CharT, class _Traits, class _Allocator> 1979basic_string<_CharT, _Traits, _Allocator>& 1980basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s, size_type __n) 1981{ 1982 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::assign received nullptr"); 1983 size_type __cap = capacity(); 1984 if (__cap >= __n) 1985 { 1986 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer()); 1987 traits_type::move(__p, __s, __n); 1988 traits_type::assign(__p[__n], value_type()); 1989 __set_size(__n); 1990 __invalidate_iterators_past(__n); 1991 } 1992 else 1993 { 1994 size_type __sz = size(); 1995 __grow_by_and_replace(__cap, __n - __cap, __sz, 0, __sz, __n, __s); 1996 } 1997 return *this; 1998} 1999 2000template <class _CharT, class _Traits, class _Allocator> 2001basic_string<_CharT, _Traits, _Allocator>& 2002basic_string<_CharT, _Traits, _Allocator>::assign(size_type __n, value_type __c) 2003{ 2004 size_type __cap = capacity(); 2005 if (__cap < __n) 2006 { 2007 size_type __sz = size(); 2008 __grow_by(__cap, __n - __cap, __sz, 0, __sz); 2009 } 2010 else 2011 __invalidate_iterators_past(__n); 2012 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer()); 2013 traits_type::assign(__p, __n, __c); 2014 traits_type::assign(__p[__n], value_type()); 2015 __set_size(__n); 2016 return *this; 2017} 2018 2019template <class _CharT, class _Traits, class _Allocator> 2020basic_string<_CharT, _Traits, _Allocator>& 2021basic_string<_CharT, _Traits, _Allocator>::operator=(value_type __c) 2022{ 2023 pointer __p; 2024 if (__is_long()) 2025 { 2026 __p = __get_long_pointer(); 2027 __set_long_size(1); 2028 } 2029 else 2030 { 2031 __p = __get_short_pointer(); 2032 __set_short_size(1); 2033 } 2034 traits_type::assign(*__p, __c); 2035 traits_type::assign(*++__p, value_type()); 2036 __invalidate_iterators_past(1); 2037 return *this; 2038} 2039 2040template <class _CharT, class _Traits, class _Allocator> 2041basic_string<_CharT, _Traits, _Allocator>& 2042basic_string<_CharT, _Traits, _Allocator>::operator=(const basic_string& __str) 2043{ 2044 if (this != &__str) 2045 { 2046 __copy_assign_alloc(__str); 2047 assign(__str.data(), __str.size()); 2048 } 2049 return *this; 2050} 2051 2052#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 2053 2054template <class _CharT, class _Traits, class _Allocator> 2055inline _LIBCPP_INLINE_VISIBILITY 2056void 2057basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, false_type) 2058 _NOEXCEPT_(__alloc_traits::is_always_equal::value) 2059{ 2060 if (__alloc() != __str.__alloc()) 2061 assign(__str); 2062 else 2063 __move_assign(__str, true_type()); 2064} 2065 2066template <class _CharT, class _Traits, class _Allocator> 2067inline _LIBCPP_INLINE_VISIBILITY 2068void 2069basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, true_type) 2070#if _LIBCPP_STD_VER > 14 2071 _NOEXCEPT 2072#else 2073 _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) 2074#endif 2075{ 2076 clear(); 2077 shrink_to_fit(); 2078 __r_.first() = __str.__r_.first(); 2079 __move_assign_alloc(__str); 2080 __str.__zero(); 2081} 2082 2083template <class _CharT, class _Traits, class _Allocator> 2084inline _LIBCPP_INLINE_VISIBILITY 2085basic_string<_CharT, _Traits, _Allocator>& 2086basic_string<_CharT, _Traits, _Allocator>::operator=(basic_string&& __str) 2087 _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) 2088{ 2089 __move_assign(__str, integral_constant<bool, 2090 __alloc_traits::propagate_on_container_move_assignment::value>()); 2091 return *this; 2092} 2093 2094#endif 2095 2096template <class _CharT, class _Traits, class _Allocator> 2097template<class _InputIterator> 2098typename enable_if 2099< 2100 __is_exactly_input_iterator <_InputIterator>::value 2101 || !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value, 2102 basic_string<_CharT, _Traits, _Allocator>& 2103>::type 2104basic_string<_CharT, _Traits, _Allocator>::assign(_InputIterator __first, _InputIterator __last) 2105{ 2106 const basic_string __temp(__first, __last, __alloc()); 2107 assign(__temp.data(), __temp.size()); 2108 return *this; 2109} 2110 2111template <class _CharT, class _Traits, class _Allocator> 2112template<class _ForwardIterator> 2113typename enable_if 2114< 2115 __is_forward_iterator<_ForwardIterator>::value 2116 && __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value, 2117 basic_string<_CharT, _Traits, _Allocator>& 2118>::type 2119basic_string<_CharT, _Traits, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last) 2120{ 2121 size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); 2122 size_type __cap = capacity(); 2123 if (__cap < __n) 2124 { 2125 size_type __sz = size(); 2126 __grow_by(__cap, __n - __cap, __sz, 0, __sz); 2127 } 2128 else 2129 __invalidate_iterators_past(__n); 2130 pointer __p = __get_pointer(); 2131 for (; __first != __last; ++__first, ++__p) 2132 traits_type::assign(*__p, *__first); 2133 traits_type::assign(*__p, value_type()); 2134 __set_size(__n); 2135 return *this; 2136} 2137 2138template <class _CharT, class _Traits, class _Allocator> 2139basic_string<_CharT, _Traits, _Allocator>& 2140basic_string<_CharT, _Traits, _Allocator>::assign(const basic_string& __str, size_type __pos, size_type __n) 2141{ 2142 size_type __sz = __str.size(); 2143 if (__pos > __sz) 2144 this->__throw_out_of_range(); 2145 return assign(__str.data() + __pos, _VSTD::min(__n, __sz - __pos)); 2146} 2147 2148template <class _CharT, class _Traits, class _Allocator> 2149template <class _Tp> 2150typename enable_if 2151< 2152 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 2153 basic_string<_CharT, _Traits, _Allocator>& 2154>::type 2155basic_string<_CharT, _Traits, _Allocator>::assign(const _Tp & __t, size_type __pos, size_type __n) 2156{ 2157 __self_view __sv = __t; 2158 size_type __sz = __sv.size(); 2159 if (__pos > __sz) 2160 this->__throw_out_of_range(); 2161 return assign(__sv.data() + __pos, _VSTD::min(__n, __sz - __pos)); 2162} 2163 2164 2165template <class _CharT, class _Traits, class _Allocator> 2166basic_string<_CharT, _Traits, _Allocator>& 2167basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s) 2168{ 2169 _LIBCPP_ASSERT(__s != nullptr, "string::assign received nullptr"); 2170 return assign(__s, traits_type::length(__s)); 2171} 2172 2173// append 2174 2175template <class _CharT, class _Traits, class _Allocator> 2176basic_string<_CharT, _Traits, _Allocator>& 2177basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s, size_type __n) 2178{ 2179 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::append received nullptr"); 2180 size_type __cap = capacity(); 2181 size_type __sz = size(); 2182 if (__cap - __sz >= __n) 2183 { 2184 if (__n) 2185 { 2186 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer()); 2187 traits_type::copy(__p + __sz, __s, __n); 2188 __sz += __n; 2189 __set_size(__sz); 2190 traits_type::assign(__p[__sz], value_type()); 2191 } 2192 } 2193 else 2194 __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __sz, 0, __n, __s); 2195 return *this; 2196} 2197 2198template <class _CharT, class _Traits, class _Allocator> 2199basic_string<_CharT, _Traits, _Allocator>& 2200basic_string<_CharT, _Traits, _Allocator>::append(size_type __n, value_type __c) 2201{ 2202 if (__n) 2203 { 2204 size_type __cap = capacity(); 2205 size_type __sz = size(); 2206 if (__cap - __sz < __n) 2207 __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); 2208 pointer __p = __get_pointer(); 2209 traits_type::assign(_VSTD::__to_raw_pointer(__p) + __sz, __n, __c); 2210 __sz += __n; 2211 __set_size(__sz); 2212 traits_type::assign(__p[__sz], value_type()); 2213 } 2214 return *this; 2215} 2216 2217template <class _CharT, class _Traits, class _Allocator> 2218void 2219basic_string<_CharT, _Traits, _Allocator>::push_back(value_type __c) 2220{ 2221 bool __is_short = !__is_long(); 2222 size_type __cap; 2223 size_type __sz; 2224 if (__is_short) 2225 { 2226 __cap = __min_cap - 1; 2227 __sz = __get_short_size(); 2228 } 2229 else 2230 { 2231 __cap = __get_long_cap() - 1; 2232 __sz = __get_long_size(); 2233 } 2234 if (__sz == __cap) 2235 { 2236 __grow_by(__cap, 1, __sz, __sz, 0); 2237 __is_short = !__is_long(); 2238 } 2239 pointer __p; 2240 if (__is_short) 2241 { 2242 __p = __get_short_pointer() + __sz; 2243 __set_short_size(__sz+1); 2244 } 2245 else 2246 { 2247 __p = __get_long_pointer() + __sz; 2248 __set_long_size(__sz+1); 2249 } 2250 traits_type::assign(*__p, __c); 2251 traits_type::assign(*++__p, value_type()); 2252} 2253 2254template <class _Tp> 2255bool __ptr_in_range (const _Tp* __p, const _Tp* __first, const _Tp* __last) 2256{ 2257 return __first <= __p && __p < __last; 2258} 2259 2260template <class _Tp1, class _Tp2> 2261bool __ptr_in_range (const _Tp1*, const _Tp2*, const _Tp2*) 2262{ 2263 return false; 2264} 2265 2266template <class _CharT, class _Traits, class _Allocator> 2267template<class _ForwardIterator> 2268basic_string<_CharT, _Traits, _Allocator>& 2269basic_string<_CharT, _Traits, _Allocator>::__append_forward_unsafe( 2270 _ForwardIterator __first, _ForwardIterator __last) 2271{ 2272 static_assert(__is_forward_iterator<_ForwardIterator>::value, 2273 "function requires a ForwardIterator"); 2274 size_type __sz = size(); 2275 size_type __cap = capacity(); 2276 size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); 2277 if (__n) 2278 { 2279 if ( __ptr_in_range(&*__first, data(), data() + size())) 2280 { 2281 const basic_string __temp (__first, __last, __alloc()); 2282 append(__temp.data(), __temp.size()); 2283 } 2284 else 2285 { 2286 if (__cap - __sz < __n) 2287 __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); 2288 pointer __p = __get_pointer() + __sz; 2289 for (; __first != __last; ++__p, ++__first) 2290 traits_type::assign(*__p, *__first); 2291 traits_type::assign(*__p, value_type()); 2292 __set_size(__sz + __n); 2293 } 2294 } 2295 return *this; 2296} 2297 2298template <class _CharT, class _Traits, class _Allocator> 2299inline _LIBCPP_INLINE_VISIBILITY 2300basic_string<_CharT, _Traits, _Allocator>& 2301basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str) 2302{ 2303 return append(__str.data(), __str.size()); 2304} 2305 2306template <class _CharT, class _Traits, class _Allocator> 2307basic_string<_CharT, _Traits, _Allocator>& 2308basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str, size_type __pos, size_type __n) 2309{ 2310 size_type __sz = __str.size(); 2311 if (__pos > __sz) 2312 this->__throw_out_of_range(); 2313 return append(__str.data() + __pos, _VSTD::min(__n, __sz - __pos)); 2314} 2315 2316template <class _CharT, class _Traits, class _Allocator> 2317template <class _Tp> 2318 typename enable_if 2319 < 2320 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 2321 basic_string<_CharT, _Traits, _Allocator>& 2322 >::type 2323basic_string<_CharT, _Traits, _Allocator>::append(const _Tp & __t, size_type __pos, size_type __n) 2324{ 2325 __self_view __sv = __t; 2326 size_type __sz = __sv.size(); 2327 if (__pos > __sz) 2328 this->__throw_out_of_range(); 2329 return append(__sv.data() + __pos, _VSTD::min(__n, __sz - __pos)); 2330} 2331 2332template <class _CharT, class _Traits, class _Allocator> 2333basic_string<_CharT, _Traits, _Allocator>& 2334basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s) 2335{ 2336 _LIBCPP_ASSERT(__s != nullptr, "string::append received nullptr"); 2337 return append(__s, traits_type::length(__s)); 2338} 2339 2340// insert 2341 2342template <class _CharT, class _Traits, class _Allocator> 2343basic_string<_CharT, _Traits, _Allocator>& 2344basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s, size_type __n) 2345{ 2346 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::insert received nullptr"); 2347 size_type __sz = size(); 2348 if (__pos > __sz) 2349 this->__throw_out_of_range(); 2350 size_type __cap = capacity(); 2351 if (__cap - __sz >= __n) 2352 { 2353 if (__n) 2354 { 2355 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer()); 2356 size_type __n_move = __sz - __pos; 2357 if (__n_move != 0) 2358 { 2359 if (__p + __pos <= __s && __s < __p + __sz) 2360 __s += __n; 2361 traits_type::move(__p + __pos + __n, __p + __pos, __n_move); 2362 } 2363 traits_type::move(__p + __pos, __s, __n); 2364 __sz += __n; 2365 __set_size(__sz); 2366 traits_type::assign(__p[__sz], value_type()); 2367 } 2368 } 2369 else 2370 __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s); 2371 return *this; 2372} 2373 2374template <class _CharT, class _Traits, class _Allocator> 2375basic_string<_CharT, _Traits, _Allocator>& 2376basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, size_type __n, value_type __c) 2377{ 2378 size_type __sz = size(); 2379 if (__pos > __sz) 2380 this->__throw_out_of_range(); 2381 if (__n) 2382 { 2383 size_type __cap = capacity(); 2384 value_type* __p; 2385 if (__cap - __sz >= __n) 2386 { 2387 __p = _VSTD::__to_raw_pointer(__get_pointer()); 2388 size_type __n_move = __sz - __pos; 2389 if (__n_move != 0) 2390 traits_type::move(__p + __pos + __n, __p + __pos, __n_move); 2391 } 2392 else 2393 { 2394 __grow_by(__cap, __sz + __n - __cap, __sz, __pos, 0, __n); 2395 __p = _VSTD::__to_raw_pointer(__get_long_pointer()); 2396 } 2397 traits_type::assign(__p + __pos, __n, __c); 2398 __sz += __n; 2399 __set_size(__sz); 2400 traits_type::assign(__p[__sz], value_type()); 2401 } 2402 return *this; 2403} 2404 2405template <class _CharT, class _Traits, class _Allocator> 2406template<class _InputIterator> 2407typename enable_if 2408< 2409 __is_exactly_input_iterator<_InputIterator>::value 2410 || !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value, 2411 typename basic_string<_CharT, _Traits, _Allocator>::iterator 2412>::type 2413basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _InputIterator __first, _InputIterator __last) 2414{ 2415#if _LIBCPP_DEBUG_LEVEL >= 2 2416 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, 2417 "string::insert(iterator, range) called with an iterator not" 2418 " referring to this string"); 2419#endif 2420 const basic_string __temp(__first, __last, __alloc()); 2421 return insert(__pos, __temp.data(), __temp.data() + __temp.size()); 2422} 2423 2424template <class _CharT, class _Traits, class _Allocator> 2425template<class _ForwardIterator> 2426typename enable_if 2427< 2428 __is_forward_iterator<_ForwardIterator>::value 2429 && __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value, 2430 typename basic_string<_CharT, _Traits, _Allocator>::iterator 2431>::type 2432basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last) 2433{ 2434#if _LIBCPP_DEBUG_LEVEL >= 2 2435 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, 2436 "string::insert(iterator, range) called with an iterator not" 2437 " referring to this string"); 2438#endif 2439 size_type __ip = static_cast<size_type>(__pos - begin()); 2440 size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); 2441 if (__n) 2442 { 2443 if ( __ptr_in_range(&*__first, data(), data() + size())) 2444 { 2445 const basic_string __temp(__first, __last, __alloc()); 2446 return insert(__pos, __temp.data(), __temp.data() + __temp.size()); 2447 } 2448 2449 size_type __sz = size(); 2450 size_type __cap = capacity(); 2451 value_type* __p; 2452 if (__cap - __sz >= __n) 2453 { 2454 __p = _VSTD::__to_raw_pointer(__get_pointer()); 2455 size_type __n_move = __sz - __ip; 2456 if (__n_move != 0) 2457 traits_type::move(__p + __ip + __n, __p + __ip, __n_move); 2458 } 2459 else 2460 { 2461 __grow_by(__cap, __sz + __n - __cap, __sz, __ip, 0, __n); 2462 __p = _VSTD::__to_raw_pointer(__get_long_pointer()); 2463 } 2464 __sz += __n; 2465 __set_size(__sz); 2466 traits_type::assign(__p[__sz], value_type()); 2467 for (__p += __ip; __first != __last; ++__p, ++__first) 2468 traits_type::assign(*__p, *__first); 2469 } 2470 return begin() + __ip; 2471} 2472 2473template <class _CharT, class _Traits, class _Allocator> 2474inline _LIBCPP_INLINE_VISIBILITY 2475basic_string<_CharT, _Traits, _Allocator>& 2476basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str) 2477{ 2478 return insert(__pos1, __str.data(), __str.size()); 2479} 2480 2481template <class _CharT, class _Traits, class _Allocator> 2482basic_string<_CharT, _Traits, _Allocator>& 2483basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str, 2484 size_type __pos2, size_type __n) 2485{ 2486 size_type __str_sz = __str.size(); 2487 if (__pos2 > __str_sz) 2488 this->__throw_out_of_range(); 2489 return insert(__pos1, __str.data() + __pos2, _VSTD::min(__n, __str_sz - __pos2)); 2490} 2491 2492template <class _CharT, class _Traits, class _Allocator> 2493template <class _Tp> 2494typename enable_if 2495< 2496 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 2497 basic_string<_CharT, _Traits, _Allocator>& 2498>::type 2499basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const _Tp& __t, 2500 size_type __pos2, size_type __n) 2501{ 2502 __self_view __sv = __t; 2503 size_type __str_sz = __sv.size(); 2504 if (__pos2 > __str_sz) 2505 this->__throw_out_of_range(); 2506 return insert(__pos1, __sv.data() + __pos2, _VSTD::min(__n, __str_sz - __pos2)); 2507} 2508 2509template <class _CharT, class _Traits, class _Allocator> 2510basic_string<_CharT, _Traits, _Allocator>& 2511basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s) 2512{ 2513 _LIBCPP_ASSERT(__s != nullptr, "string::insert received nullptr"); 2514 return insert(__pos, __s, traits_type::length(__s)); 2515} 2516 2517template <class _CharT, class _Traits, class _Allocator> 2518typename basic_string<_CharT, _Traits, _Allocator>::iterator 2519basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, value_type __c) 2520{ 2521 size_type __ip = static_cast<size_type>(__pos - begin()); 2522 size_type __sz = size(); 2523 size_type __cap = capacity(); 2524 value_type* __p; 2525 if (__cap == __sz) 2526 { 2527 __grow_by(__cap, 1, __sz, __ip, 0, 1); 2528 __p = _VSTD::__to_raw_pointer(__get_long_pointer()); 2529 } 2530 else 2531 { 2532 __p = _VSTD::__to_raw_pointer(__get_pointer()); 2533 size_type __n_move = __sz - __ip; 2534 if (__n_move != 0) 2535 traits_type::move(__p + __ip + 1, __p + __ip, __n_move); 2536 } 2537 traits_type::assign(__p[__ip], __c); 2538 traits_type::assign(__p[++__sz], value_type()); 2539 __set_size(__sz); 2540 return begin() + static_cast<difference_type>(__ip); 2541} 2542 2543template <class _CharT, class _Traits, class _Allocator> 2544inline _LIBCPP_INLINE_VISIBILITY 2545typename basic_string<_CharT, _Traits, _Allocator>::iterator 2546basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, size_type __n, value_type __c) 2547{ 2548#if _LIBCPP_DEBUG_LEVEL >= 2 2549 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, 2550 "string::insert(iterator, n, value) called with an iterator not" 2551 " referring to this string"); 2552#endif 2553 difference_type __p = __pos - begin(); 2554 insert(static_cast<size_type>(__p), __n, __c); 2555 return begin() + __p; 2556} 2557 2558// replace 2559 2560template <class _CharT, class _Traits, class _Allocator> 2561basic_string<_CharT, _Traits, _Allocator>& 2562basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2) 2563 _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 2564{ 2565 _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::replace received nullptr"); 2566 size_type __sz = size(); 2567 if (__pos > __sz) 2568 this->__throw_out_of_range(); 2569 __n1 = _VSTD::min(__n1, __sz - __pos); 2570 size_type __cap = capacity(); 2571 if (__cap - __sz + __n1 >= __n2) 2572 { 2573 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer()); 2574 if (__n1 != __n2) 2575 { 2576 size_type __n_move = __sz - __pos - __n1; 2577 if (__n_move != 0) 2578 { 2579 if (__n1 > __n2) 2580 { 2581 traits_type::move(__p + __pos, __s, __n2); 2582 traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); 2583 goto __finish; 2584 } 2585 if (__p + __pos < __s && __s < __p + __sz) 2586 { 2587 if (__p + __pos + __n1 <= __s) 2588 __s += __n2 - __n1; 2589 else // __p + __pos < __s < __p + __pos + __n1 2590 { 2591 traits_type::move(__p + __pos, __s, __n1); 2592 __pos += __n1; 2593 __s += __n2; 2594 __n2 -= __n1; 2595 __n1 = 0; 2596 } 2597 } 2598 traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); 2599 } 2600 } 2601 traits_type::move(__p + __pos, __s, __n2); 2602__finish: 2603// __sz += __n2 - __n1; in this and the below function below can cause unsigned integer overflow, 2604// but this is a safe operation, so we disable the check. 2605 __sz += __n2 - __n1; 2606 __set_size(__sz); 2607 __invalidate_iterators_past(__sz); 2608 traits_type::assign(__p[__sz], value_type()); 2609 } 2610 else 2611 __grow_by_and_replace(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2, __s); 2612 return *this; 2613} 2614 2615template <class _CharT, class _Traits, class _Allocator> 2616basic_string<_CharT, _Traits, _Allocator>& 2617basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, size_type __n2, value_type __c) 2618 _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 2619{ 2620 size_type __sz = size(); 2621 if (__pos > __sz) 2622 this->__throw_out_of_range(); 2623 __n1 = _VSTD::min(__n1, __sz - __pos); 2624 size_type __cap = capacity(); 2625 value_type* __p; 2626 if (__cap - __sz + __n1 >= __n2) 2627 { 2628 __p = _VSTD::__to_raw_pointer(__get_pointer()); 2629 if (__n1 != __n2) 2630 { 2631 size_type __n_move = __sz - __pos - __n1; 2632 if (__n_move != 0) 2633 traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); 2634 } 2635 } 2636 else 2637 { 2638 __grow_by(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2); 2639 __p = _VSTD::__to_raw_pointer(__get_long_pointer()); 2640 } 2641 traits_type::assign(__p + __pos, __n2, __c); 2642 __sz += __n2 - __n1; 2643 __set_size(__sz); 2644 __invalidate_iterators_past(__sz); 2645 traits_type::assign(__p[__sz], value_type()); 2646 return *this; 2647} 2648 2649template <class _CharT, class _Traits, class _Allocator> 2650template<class _InputIterator> 2651typename enable_if 2652< 2653 __is_input_iterator<_InputIterator>::value, 2654 basic_string<_CharT, _Traits, _Allocator>& 2655>::type 2656basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, 2657 _InputIterator __j1, _InputIterator __j2) 2658{ 2659 const basic_string __temp(__j1, __j2, __alloc()); 2660 return this->replace(__i1, __i2, __temp); 2661} 2662 2663template <class _CharT, class _Traits, class _Allocator> 2664inline _LIBCPP_INLINE_VISIBILITY 2665basic_string<_CharT, _Traits, _Allocator>& 2666basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str) 2667{ 2668 return replace(__pos1, __n1, __str.data(), __str.size()); 2669} 2670 2671template <class _CharT, class _Traits, class _Allocator> 2672basic_string<_CharT, _Traits, _Allocator>& 2673basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str, 2674 size_type __pos2, size_type __n2) 2675{ 2676 size_type __str_sz = __str.size(); 2677 if (__pos2 > __str_sz) 2678 this->__throw_out_of_range(); 2679 return replace(__pos1, __n1, __str.data() + __pos2, _VSTD::min(__n2, __str_sz - __pos2)); 2680} 2681 2682template <class _CharT, class _Traits, class _Allocator> 2683template <class _Tp> 2684typename enable_if 2685< 2686 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 2687 basic_string<_CharT, _Traits, _Allocator>& 2688>::type 2689basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const _Tp& __t, 2690 size_type __pos2, size_type __n2) 2691{ 2692 __self_view __sv = __t; 2693 size_type __str_sz = __sv.size(); 2694 if (__pos2 > __str_sz) 2695 this->__throw_out_of_range(); 2696 return replace(__pos1, __n1, __sv.data() + __pos2, _VSTD::min(__n2, __str_sz - __pos2)); 2697} 2698 2699template <class _CharT, class _Traits, class _Allocator> 2700basic_string<_CharT, _Traits, _Allocator>& 2701basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s) 2702{ 2703 _LIBCPP_ASSERT(__s != nullptr, "string::replace received nullptr"); 2704 return replace(__pos, __n1, __s, traits_type::length(__s)); 2705} 2706 2707template <class _CharT, class _Traits, class _Allocator> 2708inline _LIBCPP_INLINE_VISIBILITY 2709basic_string<_CharT, _Traits, _Allocator>& 2710basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const basic_string& __str) 2711{ 2712 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), 2713 __str.data(), __str.size()); 2714} 2715 2716template <class _CharT, class _Traits, class _Allocator> 2717inline _LIBCPP_INLINE_VISIBILITY 2718basic_string<_CharT, _Traits, _Allocator>& 2719basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n) 2720{ 2721 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __s, __n); 2722} 2723 2724template <class _CharT, class _Traits, class _Allocator> 2725inline _LIBCPP_INLINE_VISIBILITY 2726basic_string<_CharT, _Traits, _Allocator>& 2727basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s) 2728{ 2729 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __s); 2730} 2731 2732template <class _CharT, class _Traits, class _Allocator> 2733inline _LIBCPP_INLINE_VISIBILITY 2734basic_string<_CharT, _Traits, _Allocator>& 2735basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c) 2736{ 2737 return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __n, __c); 2738} 2739 2740// erase 2741 2742template <class _CharT, class _Traits, class _Allocator> 2743basic_string<_CharT, _Traits, _Allocator>& 2744basic_string<_CharT, _Traits, _Allocator>::erase(size_type __pos, size_type __n) 2745{ 2746 size_type __sz = size(); 2747 if (__pos > __sz) 2748 this->__throw_out_of_range(); 2749 if (__n) 2750 { 2751 value_type* __p = _VSTD::__to_raw_pointer(__get_pointer()); 2752 __n = _VSTD::min(__n, __sz - __pos); 2753 size_type __n_move = __sz - __pos - __n; 2754 if (__n_move != 0) 2755 traits_type::move(__p + __pos, __p + __pos + __n, __n_move); 2756 __sz -= __n; 2757 __set_size(__sz); 2758 __invalidate_iterators_past(__sz); 2759 traits_type::assign(__p[__sz], value_type()); 2760 } 2761 return *this; 2762} 2763 2764template <class _CharT, class _Traits, class _Allocator> 2765inline _LIBCPP_INLINE_VISIBILITY 2766typename basic_string<_CharT, _Traits, _Allocator>::iterator 2767basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __pos) 2768{ 2769#if _LIBCPP_DEBUG_LEVEL >= 2 2770 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, 2771 "string::erase(iterator) called with an iterator not" 2772 " referring to this string"); 2773#endif 2774 _LIBCPP_ASSERT(__pos != end(), 2775 "string::erase(iterator) called with a non-dereferenceable iterator"); 2776 iterator __b = begin(); 2777 size_type __r = static_cast<size_type>(__pos - __b); 2778 erase(__r, 1); 2779 return __b + static_cast<difference_type>(__r); 2780} 2781 2782template <class _CharT, class _Traits, class _Allocator> 2783inline _LIBCPP_INLINE_VISIBILITY 2784typename basic_string<_CharT, _Traits, _Allocator>::iterator 2785basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __first, const_iterator __last) 2786{ 2787#if _LIBCPP_DEBUG_LEVEL >= 2 2788 _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this, 2789 "string::erase(iterator, iterator) called with an iterator not" 2790 " referring to this string"); 2791#endif 2792 _LIBCPP_ASSERT(__first <= __last, "string::erase(first, last) called with invalid range"); 2793 iterator __b = begin(); 2794 size_type __r = static_cast<size_type>(__first - __b); 2795 erase(__r, static_cast<size_type>(__last - __first)); 2796 return __b + static_cast<difference_type>(__r); 2797} 2798 2799template <class _CharT, class _Traits, class _Allocator> 2800inline _LIBCPP_INLINE_VISIBILITY 2801void 2802basic_string<_CharT, _Traits, _Allocator>::pop_back() 2803{ 2804 _LIBCPP_ASSERT(!empty(), "string::pop_back(): string is already empty"); 2805 size_type __sz; 2806 if (__is_long()) 2807 { 2808 __sz = __get_long_size() - 1; 2809 __set_long_size(__sz); 2810 traits_type::assign(*(__get_long_pointer() + __sz), value_type()); 2811 } 2812 else 2813 { 2814 __sz = __get_short_size() - 1; 2815 __set_short_size(__sz); 2816 traits_type::assign(*(__get_short_pointer() + __sz), value_type()); 2817 } 2818 __invalidate_iterators_past(__sz); 2819} 2820 2821template <class _CharT, class _Traits, class _Allocator> 2822inline _LIBCPP_INLINE_VISIBILITY 2823void 2824basic_string<_CharT, _Traits, _Allocator>::clear() _NOEXCEPT 2825{ 2826 __invalidate_all_iterators(); 2827 if (__is_long()) 2828 { 2829 traits_type::assign(*__get_long_pointer(), value_type()); 2830 __set_long_size(0); 2831 } 2832 else 2833 { 2834 traits_type::assign(*__get_short_pointer(), value_type()); 2835 __set_short_size(0); 2836 } 2837} 2838 2839template <class _CharT, class _Traits, class _Allocator> 2840inline _LIBCPP_INLINE_VISIBILITY 2841void 2842basic_string<_CharT, _Traits, _Allocator>::__erase_to_end(size_type __pos) 2843{ 2844 if (__is_long()) 2845 { 2846 traits_type::assign(*(__get_long_pointer() + __pos), value_type()); 2847 __set_long_size(__pos); 2848 } 2849 else 2850 { 2851 traits_type::assign(*(__get_short_pointer() + __pos), value_type()); 2852 __set_short_size(__pos); 2853 } 2854 __invalidate_iterators_past(__pos); 2855} 2856 2857template <class _CharT, class _Traits, class _Allocator> 2858void 2859basic_string<_CharT, _Traits, _Allocator>::resize(size_type __n, value_type __c) 2860{ 2861 size_type __sz = size(); 2862 if (__n > __sz) 2863 append(__n - __sz, __c); 2864 else 2865 __erase_to_end(__n); 2866} 2867 2868template <class _CharT, class _Traits, class _Allocator> 2869inline _LIBCPP_INLINE_VISIBILITY 2870typename basic_string<_CharT, _Traits, _Allocator>::size_type 2871basic_string<_CharT, _Traits, _Allocator>::max_size() const _NOEXCEPT 2872{ 2873 size_type __m = __alloc_traits::max_size(__alloc()); 2874#if _LIBCPP_BIG_ENDIAN 2875 return (__m <= ~__long_mask ? __m : __m/2) - __alignment; 2876#else 2877 return __m - __alignment; 2878#endif 2879} 2880 2881template <class _CharT, class _Traits, class _Allocator> 2882void 2883basic_string<_CharT, _Traits, _Allocator>::reserve(size_type __res_arg) 2884{ 2885 if (__res_arg > max_size()) 2886 this->__throw_length_error(); 2887 size_type __cap = capacity(); 2888 size_type __sz = size(); 2889 __res_arg = _VSTD::max(__res_arg, __sz); 2890 __res_arg = __recommend(__res_arg); 2891 if (__res_arg != __cap) 2892 { 2893 pointer __new_data, __p; 2894 bool __was_long, __now_long; 2895 if (__res_arg == __min_cap - 1) 2896 { 2897 __was_long = true; 2898 __now_long = false; 2899 __new_data = __get_short_pointer(); 2900 __p = __get_long_pointer(); 2901 } 2902 else 2903 { 2904 if (__res_arg > __cap) 2905 __new_data = __alloc_traits::allocate(__alloc(), __res_arg+1); 2906 else 2907 { 2908 #ifndef _LIBCPP_NO_EXCEPTIONS 2909 try 2910 { 2911 #endif // _LIBCPP_NO_EXCEPTIONS 2912 __new_data = __alloc_traits::allocate(__alloc(), __res_arg+1); 2913 #ifndef _LIBCPP_NO_EXCEPTIONS 2914 } 2915 catch (...) 2916 { 2917 return; 2918 } 2919 #else // _LIBCPP_NO_EXCEPTIONS 2920 if (__new_data == nullptr) 2921 return; 2922 #endif // _LIBCPP_NO_EXCEPTIONS 2923 } 2924 __now_long = true; 2925 __was_long = __is_long(); 2926 __p = __get_pointer(); 2927 } 2928 traits_type::copy(_VSTD::__to_raw_pointer(__new_data), 2929 _VSTD::__to_raw_pointer(__p), size()+1); 2930 if (__was_long) 2931 __alloc_traits::deallocate(__alloc(), __p, __cap+1); 2932 if (__now_long) 2933 { 2934 __set_long_cap(__res_arg+1); 2935 __set_long_size(__sz); 2936 __set_long_pointer(__new_data); 2937 } 2938 else 2939 __set_short_size(__sz); 2940 __invalidate_all_iterators(); 2941 } 2942} 2943 2944template <class _CharT, class _Traits, class _Allocator> 2945inline _LIBCPP_INLINE_VISIBILITY 2946typename basic_string<_CharT, _Traits, _Allocator>::const_reference 2947basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) const _NOEXCEPT 2948{ 2949 _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); 2950 return *(data() + __pos); 2951} 2952 2953template <class _CharT, class _Traits, class _Allocator> 2954inline _LIBCPP_INLINE_VISIBILITY 2955typename basic_string<_CharT, _Traits, _Allocator>::reference 2956basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) _NOEXCEPT 2957{ 2958 _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); 2959 return *(__get_pointer() + __pos); 2960} 2961 2962template <class _CharT, class _Traits, class _Allocator> 2963typename basic_string<_CharT, _Traits, _Allocator>::const_reference 2964basic_string<_CharT, _Traits, _Allocator>::at(size_type __n) const 2965{ 2966 if (__n >= size()) 2967 this->__throw_out_of_range(); 2968 return (*this)[__n]; 2969} 2970 2971template <class _CharT, class _Traits, class _Allocator> 2972typename basic_string<_CharT, _Traits, _Allocator>::reference 2973basic_string<_CharT, _Traits, _Allocator>::at(size_type __n) 2974{ 2975 if (__n >= size()) 2976 this->__throw_out_of_range(); 2977 return (*this)[__n]; 2978} 2979 2980template <class _CharT, class _Traits, class _Allocator> 2981inline _LIBCPP_INLINE_VISIBILITY 2982typename basic_string<_CharT, _Traits, _Allocator>::reference 2983basic_string<_CharT, _Traits, _Allocator>::front() 2984{ 2985 _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); 2986 return *__get_pointer(); 2987} 2988 2989template <class _CharT, class _Traits, class _Allocator> 2990inline _LIBCPP_INLINE_VISIBILITY 2991typename basic_string<_CharT, _Traits, _Allocator>::const_reference 2992basic_string<_CharT, _Traits, _Allocator>::front() const 2993{ 2994 _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); 2995 return *data(); 2996} 2997 2998template <class _CharT, class _Traits, class _Allocator> 2999inline _LIBCPP_INLINE_VISIBILITY 3000typename basic_string<_CharT, _Traits, _Allocator>::reference 3001basic_string<_CharT, _Traits, _Allocator>::back() 3002{ 3003 _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); 3004 return *(__get_pointer() + size() - 1); 3005} 3006 3007template <class _CharT, class _Traits, class _Allocator> 3008inline _LIBCPP_INLINE_VISIBILITY 3009typename basic_string<_CharT, _Traits, _Allocator>::const_reference 3010basic_string<_CharT, _Traits, _Allocator>::back() const 3011{ 3012 _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); 3013 return *(data() + size() - 1); 3014} 3015 3016template <class _CharT, class _Traits, class _Allocator> 3017typename basic_string<_CharT, _Traits, _Allocator>::size_type 3018basic_string<_CharT, _Traits, _Allocator>::copy(value_type* __s, size_type __n, size_type __pos) const 3019{ 3020 size_type __sz = size(); 3021 if (__pos > __sz) 3022 this->__throw_out_of_range(); 3023 size_type __rlen = _VSTD::min(__n, __sz - __pos); 3024 traits_type::copy(__s, data() + __pos, __rlen); 3025 return __rlen; 3026} 3027 3028template <class _CharT, class _Traits, class _Allocator> 3029inline _LIBCPP_INLINE_VISIBILITY 3030basic_string<_CharT, _Traits, _Allocator> 3031basic_string<_CharT, _Traits, _Allocator>::substr(size_type __pos, size_type __n) const 3032{ 3033 return basic_string(*this, __pos, __n, __alloc()); 3034} 3035 3036template <class _CharT, class _Traits, class _Allocator> 3037inline _LIBCPP_INLINE_VISIBILITY 3038void 3039basic_string<_CharT, _Traits, _Allocator>::swap(basic_string& __str) 3040#if _LIBCPP_STD_VER >= 14 3041 _NOEXCEPT_DEBUG 3042#else 3043 _NOEXCEPT_DEBUG_(!__alloc_traits::propagate_on_container_swap::value || 3044 __is_nothrow_swappable<allocator_type>::value) 3045#endif 3046{ 3047#if _LIBCPP_DEBUG_LEVEL >= 2 3048 if (!__is_long()) 3049 __get_db()->__invalidate_all(this); 3050 if (!__str.__is_long()) 3051 __get_db()->__invalidate_all(&__str); 3052 __get_db()->swap(this, &__str); 3053#endif 3054 _LIBCPP_ASSERT( 3055 __alloc_traits::propagate_on_container_swap::value || 3056 __alloc_traits::is_always_equal::value || 3057 __alloc() == __str.__alloc(), "swapping non-equal allocators"); 3058 _VSTD::swap(__r_.first(), __str.__r_.first()); 3059 __swap_allocator(__alloc(), __str.__alloc()); 3060} 3061 3062// find 3063 3064template <class _Traits> 3065struct _LIBCPP_HIDDEN __traits_eq 3066{ 3067 typedef typename _Traits::char_type char_type; 3068 _LIBCPP_INLINE_VISIBILITY 3069 bool operator()(const char_type& __x, const char_type& __y) _NOEXCEPT 3070 {return _Traits::eq(__x, __y);} 3071}; 3072 3073template<class _CharT, class _Traits, class _Allocator> 3074typename basic_string<_CharT, _Traits, _Allocator>::size_type 3075basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, 3076 size_type __pos, 3077 size_type __n) const _NOEXCEPT 3078{ 3079 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find(): received nullptr"); 3080 return __str_find<value_type, size_type, traits_type, npos> 3081 (data(), size(), __s, __pos, __n); 3082} 3083 3084template<class _CharT, class _Traits, class _Allocator> 3085inline _LIBCPP_INLINE_VISIBILITY 3086typename basic_string<_CharT, _Traits, _Allocator>::size_type 3087basic_string<_CharT, _Traits, _Allocator>::find(const basic_string& __str, 3088 size_type __pos) const _NOEXCEPT 3089{ 3090 return __str_find<value_type, size_type, traits_type, npos> 3091 (data(), size(), __str.data(), __pos, __str.size()); 3092} 3093 3094template<class _CharT, class _Traits, class _Allocator> 3095inline _LIBCPP_INLINE_VISIBILITY 3096typename basic_string<_CharT, _Traits, _Allocator>::size_type 3097basic_string<_CharT, _Traits, _Allocator>::find(__self_view __sv, 3098 size_type __pos) const _NOEXCEPT 3099{ 3100 return __str_find<value_type, size_type, traits_type, npos> 3101 (data(), size(), __sv.data(), __pos, __sv.size()); 3102} 3103 3104template<class _CharT, class _Traits, class _Allocator> 3105inline _LIBCPP_INLINE_VISIBILITY 3106typename basic_string<_CharT, _Traits, _Allocator>::size_type 3107basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, 3108 size_type __pos) const _NOEXCEPT 3109{ 3110 _LIBCPP_ASSERT(__s != nullptr, "string::find(): received nullptr"); 3111 return __str_find<value_type, size_type, traits_type, npos> 3112 (data(), size(), __s, __pos, traits_type::length(__s)); 3113} 3114 3115template<class _CharT, class _Traits, class _Allocator> 3116typename basic_string<_CharT, _Traits, _Allocator>::size_type 3117basic_string<_CharT, _Traits, _Allocator>::find(value_type __c, 3118 size_type __pos) const _NOEXCEPT 3119{ 3120 return __str_find<value_type, size_type, traits_type, npos> 3121 (data(), size(), __c, __pos); 3122} 3123 3124// rfind 3125 3126template<class _CharT, class _Traits, class _Allocator> 3127typename basic_string<_CharT, _Traits, _Allocator>::size_type 3128basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, 3129 size_type __pos, 3130 size_type __n) const _NOEXCEPT 3131{ 3132 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::rfind(): received nullptr"); 3133 return __str_rfind<value_type, size_type, traits_type, npos> 3134 (data(), size(), __s, __pos, __n); 3135} 3136 3137template<class _CharT, class _Traits, class _Allocator> 3138inline _LIBCPP_INLINE_VISIBILITY 3139typename basic_string<_CharT, _Traits, _Allocator>::size_type 3140basic_string<_CharT, _Traits, _Allocator>::rfind(const basic_string& __str, 3141 size_type __pos) const _NOEXCEPT 3142{ 3143 return __str_rfind<value_type, size_type, traits_type, npos> 3144 (data(), size(), __str.data(), __pos, __str.size()); 3145} 3146 3147template<class _CharT, class _Traits, class _Allocator> 3148inline _LIBCPP_INLINE_VISIBILITY 3149typename basic_string<_CharT, _Traits, _Allocator>::size_type 3150basic_string<_CharT, _Traits, _Allocator>::rfind(__self_view __sv, 3151 size_type __pos) const _NOEXCEPT 3152{ 3153 return __str_rfind<value_type, size_type, traits_type, npos> 3154 (data(), size(), __sv.data(), __pos, __sv.size()); 3155} 3156 3157template<class _CharT, class _Traits, class _Allocator> 3158inline _LIBCPP_INLINE_VISIBILITY 3159typename basic_string<_CharT, _Traits, _Allocator>::size_type 3160basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, 3161 size_type __pos) const _NOEXCEPT 3162{ 3163 _LIBCPP_ASSERT(__s != nullptr, "string::rfind(): received nullptr"); 3164 return __str_rfind<value_type, size_type, traits_type, npos> 3165 (data(), size(), __s, __pos, traits_type::length(__s)); 3166} 3167 3168template<class _CharT, class _Traits, class _Allocator> 3169typename basic_string<_CharT, _Traits, _Allocator>::size_type 3170basic_string<_CharT, _Traits, _Allocator>::rfind(value_type __c, 3171 size_type __pos) const _NOEXCEPT 3172{ 3173 return __str_rfind<value_type, size_type, traits_type, npos> 3174 (data(), size(), __c, __pos); 3175} 3176 3177// find_first_of 3178 3179template<class _CharT, class _Traits, class _Allocator> 3180typename basic_string<_CharT, _Traits, _Allocator>::size_type 3181basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, 3182 size_type __pos, 3183 size_type __n) const _NOEXCEPT 3184{ 3185 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_of(): received nullptr"); 3186 return __str_find_first_of<value_type, size_type, traits_type, npos> 3187 (data(), size(), __s, __pos, __n); 3188} 3189 3190template<class _CharT, class _Traits, class _Allocator> 3191inline _LIBCPP_INLINE_VISIBILITY 3192typename basic_string<_CharT, _Traits, _Allocator>::size_type 3193basic_string<_CharT, _Traits, _Allocator>::find_first_of(const basic_string& __str, 3194 size_type __pos) const _NOEXCEPT 3195{ 3196 return __str_find_first_of<value_type, size_type, traits_type, npos> 3197 (data(), size(), __str.data(), __pos, __str.size()); 3198} 3199 3200template<class _CharT, class _Traits, class _Allocator> 3201inline _LIBCPP_INLINE_VISIBILITY 3202typename basic_string<_CharT, _Traits, _Allocator>::size_type 3203basic_string<_CharT, _Traits, _Allocator>::find_first_of(__self_view __sv, 3204 size_type __pos) const _NOEXCEPT 3205{ 3206 return __str_find_first_of<value_type, size_type, traits_type, npos> 3207 (data(), size(), __sv.data(), __pos, __sv.size()); 3208} 3209 3210template<class _CharT, class _Traits, class _Allocator> 3211inline _LIBCPP_INLINE_VISIBILITY 3212typename basic_string<_CharT, _Traits, _Allocator>::size_type 3213basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, 3214 size_type __pos) const _NOEXCEPT 3215{ 3216 _LIBCPP_ASSERT(__s != nullptr, "string::find_first_of(): received nullptr"); 3217 return __str_find_first_of<value_type, size_type, traits_type, npos> 3218 (data(), size(), __s, __pos, traits_type::length(__s)); 3219} 3220 3221template<class _CharT, class _Traits, class _Allocator> 3222inline _LIBCPP_INLINE_VISIBILITY 3223typename basic_string<_CharT, _Traits, _Allocator>::size_type 3224basic_string<_CharT, _Traits, _Allocator>::find_first_of(value_type __c, 3225 size_type __pos) const _NOEXCEPT 3226{ 3227 return find(__c, __pos); 3228} 3229 3230// find_last_of 3231 3232template<class _CharT, class _Traits, class _Allocator> 3233typename basic_string<_CharT, _Traits, _Allocator>::size_type 3234basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, 3235 size_type __pos, 3236 size_type __n) const _NOEXCEPT 3237{ 3238 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_of(): received nullptr"); 3239 return __str_find_last_of<value_type, size_type, traits_type, npos> 3240 (data(), size(), __s, __pos, __n); 3241} 3242 3243template<class _CharT, class _Traits, class _Allocator> 3244inline _LIBCPP_INLINE_VISIBILITY 3245typename basic_string<_CharT, _Traits, _Allocator>::size_type 3246basic_string<_CharT, _Traits, _Allocator>::find_last_of(const basic_string& __str, 3247 size_type __pos) const _NOEXCEPT 3248{ 3249 return __str_find_last_of<value_type, size_type, traits_type, npos> 3250 (data(), size(), __str.data(), __pos, __str.size()); 3251} 3252 3253template<class _CharT, class _Traits, class _Allocator> 3254inline _LIBCPP_INLINE_VISIBILITY 3255typename basic_string<_CharT, _Traits, _Allocator>::size_type 3256basic_string<_CharT, _Traits, _Allocator>::find_last_of(__self_view __sv, 3257 size_type __pos) const _NOEXCEPT 3258{ 3259 return __str_find_last_of<value_type, size_type, traits_type, npos> 3260 (data(), size(), __sv.data(), __pos, __sv.size()); 3261} 3262 3263template<class _CharT, class _Traits, class _Allocator> 3264inline _LIBCPP_INLINE_VISIBILITY 3265typename basic_string<_CharT, _Traits, _Allocator>::size_type 3266basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, 3267 size_type __pos) const _NOEXCEPT 3268{ 3269 _LIBCPP_ASSERT(__s != nullptr, "string::find_last_of(): received nullptr"); 3270 return __str_find_last_of<value_type, size_type, traits_type, npos> 3271 (data(), size(), __s, __pos, traits_type::length(__s)); 3272} 3273 3274template<class _CharT, class _Traits, class _Allocator> 3275inline _LIBCPP_INLINE_VISIBILITY 3276typename basic_string<_CharT, _Traits, _Allocator>::size_type 3277basic_string<_CharT, _Traits, _Allocator>::find_last_of(value_type __c, 3278 size_type __pos) const _NOEXCEPT 3279{ 3280 return rfind(__c, __pos); 3281} 3282 3283// find_first_not_of 3284 3285template<class _CharT, class _Traits, class _Allocator> 3286typename basic_string<_CharT, _Traits, _Allocator>::size_type 3287basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s, 3288 size_type __pos, 3289 size_type __n) const _NOEXCEPT 3290{ 3291 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_not_of(): received nullptr"); 3292 return __str_find_first_not_of<value_type, size_type, traits_type, npos> 3293 (data(), size(), __s, __pos, __n); 3294} 3295 3296template<class _CharT, class _Traits, class _Allocator> 3297inline _LIBCPP_INLINE_VISIBILITY 3298typename basic_string<_CharT, _Traits, _Allocator>::size_type 3299basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const basic_string& __str, 3300 size_type __pos) const _NOEXCEPT 3301{ 3302 return __str_find_first_not_of<value_type, size_type, traits_type, npos> 3303 (data(), size(), __str.data(), __pos, __str.size()); 3304} 3305 3306template<class _CharT, class _Traits, class _Allocator> 3307inline _LIBCPP_INLINE_VISIBILITY 3308typename basic_string<_CharT, _Traits, _Allocator>::size_type 3309basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(__self_view __sv, 3310 size_type __pos) const _NOEXCEPT 3311{ 3312 return __str_find_first_not_of<value_type, size_type, traits_type, npos> 3313 (data(), size(), __sv.data(), __pos, __sv.size()); 3314} 3315 3316template<class _CharT, class _Traits, class _Allocator> 3317inline _LIBCPP_INLINE_VISIBILITY 3318typename basic_string<_CharT, _Traits, _Allocator>::size_type 3319basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s, 3320 size_type __pos) const _NOEXCEPT 3321{ 3322 _LIBCPP_ASSERT(__s != nullptr, "string::find_first_not_of(): received nullptr"); 3323 return __str_find_first_not_of<value_type, size_type, traits_type, npos> 3324 (data(), size(), __s, __pos, traits_type::length(__s)); 3325} 3326 3327template<class _CharT, class _Traits, class _Allocator> 3328inline _LIBCPP_INLINE_VISIBILITY 3329typename basic_string<_CharT, _Traits, _Allocator>::size_type 3330basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(value_type __c, 3331 size_type __pos) const _NOEXCEPT 3332{ 3333 return __str_find_first_not_of<value_type, size_type, traits_type, npos> 3334 (data(), size(), __c, __pos); 3335} 3336 3337// find_last_not_of 3338 3339template<class _CharT, class _Traits, class _Allocator> 3340typename basic_string<_CharT, _Traits, _Allocator>::size_type 3341basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s, 3342 size_type __pos, 3343 size_type __n) const _NOEXCEPT 3344{ 3345 _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_not_of(): received nullptr"); 3346 return __str_find_last_not_of<value_type, size_type, traits_type, npos> 3347 (data(), size(), __s, __pos, __n); 3348} 3349 3350template<class _CharT, class _Traits, class _Allocator> 3351inline _LIBCPP_INLINE_VISIBILITY 3352typename basic_string<_CharT, _Traits, _Allocator>::size_type 3353basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const basic_string& __str, 3354 size_type __pos) const _NOEXCEPT 3355{ 3356 return __str_find_last_not_of<value_type, size_type, traits_type, npos> 3357 (data(), size(), __str.data(), __pos, __str.size()); 3358} 3359 3360template<class _CharT, class _Traits, class _Allocator> 3361inline _LIBCPP_INLINE_VISIBILITY 3362typename basic_string<_CharT, _Traits, _Allocator>::size_type 3363basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(__self_view __sv, 3364 size_type __pos) const _NOEXCEPT 3365{ 3366 return __str_find_last_not_of<value_type, size_type, traits_type, npos> 3367 (data(), size(), __sv.data(), __pos, __sv.size()); 3368} 3369 3370template<class _CharT, class _Traits, class _Allocator> 3371inline _LIBCPP_INLINE_VISIBILITY 3372typename basic_string<_CharT, _Traits, _Allocator>::size_type 3373basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s, 3374 size_type __pos) const _NOEXCEPT 3375{ 3376 _LIBCPP_ASSERT(__s != nullptr, "string::find_last_not_of(): received nullptr"); 3377 return __str_find_last_not_of<value_type, size_type, traits_type, npos> 3378 (data(), size(), __s, __pos, traits_type::length(__s)); 3379} 3380 3381template<class _CharT, class _Traits, class _Allocator> 3382inline _LIBCPP_INLINE_VISIBILITY 3383typename basic_string<_CharT, _Traits, _Allocator>::size_type 3384basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(value_type __c, 3385 size_type __pos) const _NOEXCEPT 3386{ 3387 return __str_find_last_not_of<value_type, size_type, traits_type, npos> 3388 (data(), size(), __c, __pos); 3389} 3390 3391// compare 3392 3393template <class _CharT, class _Traits, class _Allocator> 3394inline _LIBCPP_INLINE_VISIBILITY 3395int 3396basic_string<_CharT, _Traits, _Allocator>::compare(__self_view __sv) const _NOEXCEPT 3397{ 3398 size_t __lhs_sz = size(); 3399 size_t __rhs_sz = __sv.size(); 3400 int __result = traits_type::compare(data(), __sv.data(), 3401 _VSTD::min(__lhs_sz, __rhs_sz)); 3402 if (__result != 0) 3403 return __result; 3404 if (__lhs_sz < __rhs_sz) 3405 return -1; 3406 if (__lhs_sz > __rhs_sz) 3407 return 1; 3408 return 0; 3409} 3410 3411template <class _CharT, class _Traits, class _Allocator> 3412inline _LIBCPP_INLINE_VISIBILITY 3413int 3414basic_string<_CharT, _Traits, _Allocator>::compare(const basic_string& __str) const _NOEXCEPT 3415{ 3416 return compare(__self_view(__str)); 3417} 3418 3419template <class _CharT, class _Traits, class _Allocator> 3420int 3421basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, 3422 size_type __n1, 3423 const value_type* __s, 3424 size_type __n2) const 3425{ 3426 _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::compare(): received nullptr"); 3427 size_type __sz = size(); 3428 if (__pos1 > __sz || __n2 == npos) 3429 this->__throw_out_of_range(); 3430 size_type __rlen = _VSTD::min(__n1, __sz - __pos1); 3431 int __r = traits_type::compare(data() + __pos1, __s, _VSTD::min(__rlen, __n2)); 3432 if (__r == 0) 3433 { 3434 if (__rlen < __n2) 3435 __r = -1; 3436 else if (__rlen > __n2) 3437 __r = 1; 3438 } 3439 return __r; 3440} 3441 3442template <class _CharT, class _Traits, class _Allocator> 3443inline _LIBCPP_INLINE_VISIBILITY 3444int 3445basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, 3446 size_type __n1, 3447 __self_view __sv) const 3448{ 3449 return compare(__pos1, __n1, __sv.data(), __sv.size()); 3450} 3451 3452template <class _CharT, class _Traits, class _Allocator> 3453inline _LIBCPP_INLINE_VISIBILITY 3454int 3455basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, 3456 size_type __n1, 3457 const basic_string& __str) const 3458{ 3459 return compare(__pos1, __n1, __str.data(), __str.size()); 3460} 3461 3462template <class _CharT, class _Traits, class _Allocator> 3463template <class _Tp> 3464typename enable_if 3465< 3466 __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, 3467 int 3468>::type 3469basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, 3470 size_type __n1, 3471 const _Tp& __t, 3472 size_type __pos2, 3473 size_type __n2) const 3474{ 3475 __self_view __sv = __t; 3476 return __self_view(*this).substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); 3477} 3478 3479template <class _CharT, class _Traits, class _Allocator> 3480int 3481basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, 3482 size_type __n1, 3483 const basic_string& __str, 3484 size_type __pos2, 3485 size_type __n2) const 3486{ 3487 return compare(__pos1, __n1, __self_view(__str), __pos2, __n2); 3488} 3489 3490template <class _CharT, class _Traits, class _Allocator> 3491int 3492basic_string<_CharT, _Traits, _Allocator>::compare(const value_type* __s) const _NOEXCEPT 3493{ 3494 _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr"); 3495 return compare(0, npos, __s, traits_type::length(__s)); 3496} 3497 3498template <class _CharT, class _Traits, class _Allocator> 3499int 3500basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, 3501 size_type __n1, 3502 const value_type* __s) const 3503{ 3504 _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr"); 3505 return compare(__pos1, __n1, __s, traits_type::length(__s)); 3506} 3507 3508// __invariants 3509 3510template<class _CharT, class _Traits, class _Allocator> 3511inline _LIBCPP_INLINE_VISIBILITY 3512bool 3513basic_string<_CharT, _Traits, _Allocator>::__invariants() const 3514{ 3515 if (size() > capacity()) 3516 return false; 3517 if (capacity() < __min_cap - 1) 3518 return false; 3519 if (data() == 0) 3520 return false; 3521 if (data()[size()] != value_type(0)) 3522 return false; 3523 return true; 3524} 3525 3526// operator== 3527 3528template<class _CharT, class _Traits, class _Allocator> 3529inline _LIBCPP_INLINE_VISIBILITY 3530bool 3531operator==(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3532 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3533{ 3534 size_t __lhs_sz = __lhs.size(); 3535 return __lhs_sz == __rhs.size() && _Traits::compare(__lhs.data(), 3536 __rhs.data(), 3537 __lhs_sz) == 0; 3538} 3539 3540template<class _Allocator> 3541inline _LIBCPP_INLINE_VISIBILITY 3542bool 3543operator==(const basic_string<char, char_traits<char>, _Allocator>& __lhs, 3544 const basic_string<char, char_traits<char>, _Allocator>& __rhs) _NOEXCEPT 3545{ 3546 size_t __lhs_sz = __lhs.size(); 3547 if (__lhs_sz != __rhs.size()) 3548 return false; 3549 const char* __lp = __lhs.data(); 3550 const char* __rp = __rhs.data(); 3551 if (__lhs.__is_long()) 3552 return char_traits<char>::compare(__lp, __rp, __lhs_sz) == 0; 3553 for (; __lhs_sz != 0; --__lhs_sz, ++__lp, ++__rp) 3554 if (*__lp != *__rp) 3555 return false; 3556 return true; 3557} 3558 3559template<class _CharT, class _Traits, class _Allocator> 3560inline _LIBCPP_INLINE_VISIBILITY 3561bool 3562operator==(const _CharT* __lhs, 3563 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3564{ 3565 typedef basic_string<_CharT, _Traits, _Allocator> _String; 3566 _LIBCPP_ASSERT(__lhs != nullptr, "operator==(char*, basic_string): received nullptr"); 3567 size_t __lhs_len = _Traits::length(__lhs); 3568 if (__lhs_len != __rhs.size()) return false; 3569 return __rhs.compare(0, _String::npos, __lhs, __lhs_len) == 0; 3570} 3571 3572template<class _CharT, class _Traits, class _Allocator> 3573inline _LIBCPP_INLINE_VISIBILITY 3574bool 3575operator==(const basic_string<_CharT,_Traits,_Allocator>& __lhs, 3576 const _CharT* __rhs) _NOEXCEPT 3577{ 3578 typedef basic_string<_CharT, _Traits, _Allocator> _String; 3579 _LIBCPP_ASSERT(__rhs != nullptr, "operator==(basic_string, char*): received nullptr"); 3580 size_t __rhs_len = _Traits::length(__rhs); 3581 if (__rhs_len != __lhs.size()) return false; 3582 return __lhs.compare(0, _String::npos, __rhs, __rhs_len) == 0; 3583} 3584 3585template<class _CharT, class _Traits, class _Allocator> 3586inline _LIBCPP_INLINE_VISIBILITY 3587bool 3588operator!=(const basic_string<_CharT,_Traits,_Allocator>& __lhs, 3589 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3590{ 3591 return !(__lhs == __rhs); 3592} 3593 3594template<class _CharT, class _Traits, class _Allocator> 3595inline _LIBCPP_INLINE_VISIBILITY 3596bool 3597operator!=(const _CharT* __lhs, 3598 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3599{ 3600 return !(__lhs == __rhs); 3601} 3602 3603template<class _CharT, class _Traits, class _Allocator> 3604inline _LIBCPP_INLINE_VISIBILITY 3605bool 3606operator!=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3607 const _CharT* __rhs) _NOEXCEPT 3608{ 3609 return !(__lhs == __rhs); 3610} 3611 3612// operator< 3613 3614template<class _CharT, class _Traits, class _Allocator> 3615inline _LIBCPP_INLINE_VISIBILITY 3616bool 3617operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3618 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3619{ 3620 return __lhs.compare(__rhs) < 0; 3621} 3622 3623template<class _CharT, class _Traits, class _Allocator> 3624inline _LIBCPP_INLINE_VISIBILITY 3625bool 3626operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3627 const _CharT* __rhs) _NOEXCEPT 3628{ 3629 return __lhs.compare(__rhs) < 0; 3630} 3631 3632template<class _CharT, class _Traits, class _Allocator> 3633inline _LIBCPP_INLINE_VISIBILITY 3634bool 3635operator< (const _CharT* __lhs, 3636 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3637{ 3638 return __rhs.compare(__lhs) > 0; 3639} 3640 3641// operator> 3642 3643template<class _CharT, class _Traits, class _Allocator> 3644inline _LIBCPP_INLINE_VISIBILITY 3645bool 3646operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3647 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3648{ 3649 return __rhs < __lhs; 3650} 3651 3652template<class _CharT, class _Traits, class _Allocator> 3653inline _LIBCPP_INLINE_VISIBILITY 3654bool 3655operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3656 const _CharT* __rhs) _NOEXCEPT 3657{ 3658 return __rhs < __lhs; 3659} 3660 3661template<class _CharT, class _Traits, class _Allocator> 3662inline _LIBCPP_INLINE_VISIBILITY 3663bool 3664operator> (const _CharT* __lhs, 3665 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3666{ 3667 return __rhs < __lhs; 3668} 3669 3670// operator<= 3671 3672template<class _CharT, class _Traits, class _Allocator> 3673inline _LIBCPP_INLINE_VISIBILITY 3674bool 3675operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3676 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3677{ 3678 return !(__rhs < __lhs); 3679} 3680 3681template<class _CharT, class _Traits, class _Allocator> 3682inline _LIBCPP_INLINE_VISIBILITY 3683bool 3684operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3685 const _CharT* __rhs) _NOEXCEPT 3686{ 3687 return !(__rhs < __lhs); 3688} 3689 3690template<class _CharT, class _Traits, class _Allocator> 3691inline _LIBCPP_INLINE_VISIBILITY 3692bool 3693operator<=(const _CharT* __lhs, 3694 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3695{ 3696 return !(__rhs < __lhs); 3697} 3698 3699// operator>= 3700 3701template<class _CharT, class _Traits, class _Allocator> 3702inline _LIBCPP_INLINE_VISIBILITY 3703bool 3704operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3705 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3706{ 3707 return !(__lhs < __rhs); 3708} 3709 3710template<class _CharT, class _Traits, class _Allocator> 3711inline _LIBCPP_INLINE_VISIBILITY 3712bool 3713operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3714 const _CharT* __rhs) _NOEXCEPT 3715{ 3716 return !(__lhs < __rhs); 3717} 3718 3719template<class _CharT, class _Traits, class _Allocator> 3720inline _LIBCPP_INLINE_VISIBILITY 3721bool 3722operator>=(const _CharT* __lhs, 3723 const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT 3724{ 3725 return !(__lhs < __rhs); 3726} 3727 3728// operator + 3729 3730template<class _CharT, class _Traits, class _Allocator> 3731basic_string<_CharT, _Traits, _Allocator> 3732operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, 3733 const basic_string<_CharT, _Traits, _Allocator>& __rhs) 3734{ 3735 basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator()); 3736 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size(); 3737 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size(); 3738 __r.__init(__lhs.data(), __lhs_sz, __lhs_sz + __rhs_sz); 3739 __r.append(__rhs.data(), __rhs_sz); 3740 return __r; 3741} 3742 3743template<class _CharT, class _Traits, class _Allocator> 3744basic_string<_CharT, _Traits, _Allocator> 3745operator+(const _CharT* __lhs , const basic_string<_CharT,_Traits,_Allocator>& __rhs) 3746{ 3747 basic_string<_CharT, _Traits, _Allocator> __r(__rhs.get_allocator()); 3748 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = _Traits::length(__lhs); 3749 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size(); 3750 __r.__init(__lhs, __lhs_sz, __lhs_sz + __rhs_sz); 3751 __r.append(__rhs.data(), __rhs_sz); 3752 return __r; 3753} 3754 3755template<class _CharT, class _Traits, class _Allocator> 3756basic_string<_CharT, _Traits, _Allocator> 3757operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Allocator>& __rhs) 3758{ 3759 basic_string<_CharT, _Traits, _Allocator> __r(__rhs.get_allocator()); 3760 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size(); 3761 __r.__init(&__lhs, 1, 1 + __rhs_sz); 3762 __r.append(__rhs.data(), __rhs_sz); 3763 return __r; 3764} 3765 3766template<class _CharT, class _Traits, class _Allocator> 3767basic_string<_CharT, _Traits, _Allocator> 3768operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) 3769{ 3770 basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator()); 3771 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size(); 3772 typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = _Traits::length(__rhs); 3773 __r.__init(__lhs.data(), __lhs_sz, __lhs_sz + __rhs_sz); 3774 __r.append(__rhs, __rhs_sz); 3775 return __r; 3776} 3777 3778template<class _CharT, class _Traits, class _Allocator> 3779basic_string<_CharT, _Traits, _Allocator> 3780operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, _CharT __rhs) 3781{ 3782 basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator()); 3783 typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size(); 3784 __r.__init(__lhs.data(), __lhs_sz, __lhs_sz + 1); 3785 __r.push_back(__rhs); 3786 return __r; 3787} 3788 3789#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 3790 3791template<class _CharT, class _Traits, class _Allocator> 3792inline _LIBCPP_INLINE_VISIBILITY 3793basic_string<_CharT, _Traits, _Allocator> 3794operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) 3795{ 3796 return _VSTD::move(__lhs.append(__rhs)); 3797} 3798 3799template<class _CharT, class _Traits, class _Allocator> 3800inline _LIBCPP_INLINE_VISIBILITY 3801basic_string<_CharT, _Traits, _Allocator> 3802operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs) 3803{ 3804 return _VSTD::move(__rhs.insert(0, __lhs)); 3805} 3806 3807template<class _CharT, class _Traits, class _Allocator> 3808inline _LIBCPP_INLINE_VISIBILITY 3809basic_string<_CharT, _Traits, _Allocator> 3810operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs) 3811{ 3812 return _VSTD::move(__lhs.append(__rhs)); 3813} 3814 3815template<class _CharT, class _Traits, class _Allocator> 3816inline _LIBCPP_INLINE_VISIBILITY 3817basic_string<_CharT, _Traits, _Allocator> 3818operator+(const _CharT* __lhs , basic_string<_CharT,_Traits,_Allocator>&& __rhs) 3819{ 3820 return _VSTD::move(__rhs.insert(0, __lhs)); 3821} 3822 3823template<class _CharT, class _Traits, class _Allocator> 3824inline _LIBCPP_INLINE_VISIBILITY 3825basic_string<_CharT, _Traits, _Allocator> 3826operator+(_CharT __lhs, basic_string<_CharT,_Traits,_Allocator>&& __rhs) 3827{ 3828 __rhs.insert(__rhs.begin(), __lhs); 3829 return _VSTD::move(__rhs); 3830} 3831 3832template<class _CharT, class _Traits, class _Allocator> 3833inline _LIBCPP_INLINE_VISIBILITY 3834basic_string<_CharT, _Traits, _Allocator> 3835operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const _CharT* __rhs) 3836{ 3837 return _VSTD::move(__lhs.append(__rhs)); 3838} 3839 3840template<class _CharT, class _Traits, class _Allocator> 3841inline _LIBCPP_INLINE_VISIBILITY 3842basic_string<_CharT, _Traits, _Allocator> 3843operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, _CharT __rhs) 3844{ 3845 __lhs.push_back(__rhs); 3846 return _VSTD::move(__lhs); 3847} 3848 3849#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 3850 3851// swap 3852 3853template<class _CharT, class _Traits, class _Allocator> 3854inline _LIBCPP_INLINE_VISIBILITY 3855void 3856swap(basic_string<_CharT, _Traits, _Allocator>& __lhs, 3857 basic_string<_CharT, _Traits, _Allocator>& __rhs) 3858 _NOEXCEPT_(_NOEXCEPT_(__lhs.swap(__rhs))) 3859{ 3860 __lhs.swap(__rhs); 3861} 3862 3863#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 3864 3865typedef basic_string<char16_t> u16string; 3866typedef basic_string<char32_t> u32string; 3867 3868#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 3869 3870_LIBCPP_FUNC_VIS int stoi (const string& __str, size_t* __idx = 0, int __base = 10); 3871_LIBCPP_FUNC_VIS long stol (const string& __str, size_t* __idx = 0, int __base = 10); 3872_LIBCPP_FUNC_VIS unsigned long stoul (const string& __str, size_t* __idx = 0, int __base = 10); 3873_LIBCPP_FUNC_VIS long long stoll (const string& __str, size_t* __idx = 0, int __base = 10); 3874_LIBCPP_FUNC_VIS unsigned long long stoull(const string& __str, size_t* __idx = 0, int __base = 10); 3875 3876_LIBCPP_FUNC_VIS float stof (const string& __str, size_t* __idx = 0); 3877_LIBCPP_FUNC_VIS double stod (const string& __str, size_t* __idx = 0); 3878_LIBCPP_FUNC_VIS long double stold(const string& __str, size_t* __idx = 0); 3879 3880_LIBCPP_FUNC_VIS string to_string(int __val); 3881_LIBCPP_FUNC_VIS string to_string(unsigned __val); 3882_LIBCPP_FUNC_VIS string to_string(long __val); 3883_LIBCPP_FUNC_VIS string to_string(unsigned long __val); 3884_LIBCPP_FUNC_VIS string to_string(long long __val); 3885_LIBCPP_FUNC_VIS string to_string(unsigned long long __val); 3886_LIBCPP_FUNC_VIS string to_string(float __val); 3887_LIBCPP_FUNC_VIS string to_string(double __val); 3888_LIBCPP_FUNC_VIS string to_string(long double __val); 3889 3890_LIBCPP_FUNC_VIS int stoi (const wstring& __str, size_t* __idx = 0, int __base = 10); 3891_LIBCPP_FUNC_VIS long stol (const wstring& __str, size_t* __idx = 0, int __base = 10); 3892_LIBCPP_FUNC_VIS unsigned long stoul (const wstring& __str, size_t* __idx = 0, int __base = 10); 3893_LIBCPP_FUNC_VIS long long stoll (const wstring& __str, size_t* __idx = 0, int __base = 10); 3894_LIBCPP_FUNC_VIS unsigned long long stoull(const wstring& __str, size_t* __idx = 0, int __base = 10); 3895 3896_LIBCPP_FUNC_VIS float stof (const wstring& __str, size_t* __idx = 0); 3897_LIBCPP_FUNC_VIS double stod (const wstring& __str, size_t* __idx = 0); 3898_LIBCPP_FUNC_VIS long double stold(const wstring& __str, size_t* __idx = 0); 3899 3900_LIBCPP_FUNC_VIS wstring to_wstring(int __val); 3901_LIBCPP_FUNC_VIS wstring to_wstring(unsigned __val); 3902_LIBCPP_FUNC_VIS wstring to_wstring(long __val); 3903_LIBCPP_FUNC_VIS wstring to_wstring(unsigned long __val); 3904_LIBCPP_FUNC_VIS wstring to_wstring(long long __val); 3905_LIBCPP_FUNC_VIS wstring to_wstring(unsigned long long __val); 3906_LIBCPP_FUNC_VIS wstring to_wstring(float __val); 3907_LIBCPP_FUNC_VIS wstring to_wstring(double __val); 3908_LIBCPP_FUNC_VIS wstring to_wstring(long double __val); 3909 3910template<class _CharT, class _Traits, class _Allocator> 3911 const typename basic_string<_CharT, _Traits, _Allocator>::size_type 3912 basic_string<_CharT, _Traits, _Allocator>::npos; 3913 3914template<class _CharT, class _Traits, class _Allocator> 3915struct _LIBCPP_TEMPLATE_VIS hash<basic_string<_CharT, _Traits, _Allocator> > 3916 : public unary_function<basic_string<_CharT, _Traits, _Allocator>, size_t> 3917{ 3918 size_t 3919 operator()(const basic_string<_CharT, _Traits, _Allocator>& __val) const _NOEXCEPT; 3920}; 3921 3922template<class _CharT, class _Traits, class _Allocator> 3923size_t 3924hash<basic_string<_CharT, _Traits, _Allocator> >::operator()( 3925 const basic_string<_CharT, _Traits, _Allocator>& __val) const _NOEXCEPT 3926{ 3927 return __do_string_hash(__val.data(), __val.data() + __val.size()); 3928} 3929 3930template<class _CharT, class _Traits, class _Allocator> 3931basic_ostream<_CharT, _Traits>& 3932operator<<(basic_ostream<_CharT, _Traits>& __os, 3933 const basic_string<_CharT, _Traits, _Allocator>& __str); 3934 3935template<class _CharT, class _Traits, class _Allocator> 3936basic_istream<_CharT, _Traits>& 3937operator>>(basic_istream<_CharT, _Traits>& __is, 3938 basic_string<_CharT, _Traits, _Allocator>& __str); 3939 3940template<class _CharT, class _Traits, class _Allocator> 3941basic_istream<_CharT, _Traits>& 3942getline(basic_istream<_CharT, _Traits>& __is, 3943 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm); 3944 3945template<class _CharT, class _Traits, class _Allocator> 3946inline _LIBCPP_INLINE_VISIBILITY 3947basic_istream<_CharT, _Traits>& 3948getline(basic_istream<_CharT, _Traits>& __is, 3949 basic_string<_CharT, _Traits, _Allocator>& __str); 3950 3951#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 3952 3953template<class _CharT, class _Traits, class _Allocator> 3954inline _LIBCPP_INLINE_VISIBILITY 3955basic_istream<_CharT, _Traits>& 3956getline(basic_istream<_CharT, _Traits>&& __is, 3957 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm); 3958 3959template<class _CharT, class _Traits, class _Allocator> 3960inline _LIBCPP_INLINE_VISIBILITY 3961basic_istream<_CharT, _Traits>& 3962getline(basic_istream<_CharT, _Traits>&& __is, 3963 basic_string<_CharT, _Traits, _Allocator>& __str); 3964 3965#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 3966 3967#if _LIBCPP_DEBUG_LEVEL >= 2 3968 3969template<class _CharT, class _Traits, class _Allocator> 3970bool 3971basic_string<_CharT, _Traits, _Allocator>::__dereferenceable(const const_iterator* __i) const 3972{ 3973 return this->data() <= _VSTD::__to_raw_pointer(__i->base()) && 3974 _VSTD::__to_raw_pointer(__i->base()) < this->data() + this->size(); 3975} 3976 3977template<class _CharT, class _Traits, class _Allocator> 3978bool 3979basic_string<_CharT, _Traits, _Allocator>::__decrementable(const const_iterator* __i) const 3980{ 3981 return this->data() < _VSTD::__to_raw_pointer(__i->base()) && 3982 _VSTD::__to_raw_pointer(__i->base()) <= this->data() + this->size(); 3983} 3984 3985template<class _CharT, class _Traits, class _Allocator> 3986bool 3987basic_string<_CharT, _Traits, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const 3988{ 3989 const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n; 3990 return this->data() <= __p && __p <= this->data() + this->size(); 3991} 3992 3993template<class _CharT, class _Traits, class _Allocator> 3994bool 3995basic_string<_CharT, _Traits, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const 3996{ 3997 const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n; 3998 return this->data() <= __p && __p < this->data() + this->size(); 3999} 4000 4001#endif // _LIBCPP_DEBUG_LEVEL >= 2 4002 4003#if _LIBCPP_STD_VER > 11 4004// Literal suffixes for basic_string [basic.string.literals] 4005inline namespace literals 4006{ 4007 inline namespace string_literals 4008 { 4009 inline _LIBCPP_INLINE_VISIBILITY 4010 basic_string<char> operator "" s( const char *__str, size_t __len ) 4011 { 4012 return basic_string<char> (__str, __len); 4013 } 4014 4015 inline _LIBCPP_INLINE_VISIBILITY 4016 basic_string<wchar_t> operator "" s( const wchar_t *__str, size_t __len ) 4017 { 4018 return basic_string<wchar_t> (__str, __len); 4019 } 4020 4021 inline _LIBCPP_INLINE_VISIBILITY 4022 basic_string<char16_t> operator "" s( const char16_t *__str, size_t __len ) 4023 { 4024 return basic_string<char16_t> (__str, __len); 4025 } 4026 4027 inline _LIBCPP_INLINE_VISIBILITY 4028 basic_string<char32_t> operator "" s( const char32_t *__str, size_t __len ) 4029 { 4030 return basic_string<char32_t> (__str, __len); 4031 } 4032 } 4033} 4034#endif 4035 4036_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_string<char>) 4037_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_string<wchar_t>) 4038_LIBCPP_EXTERN_TEMPLATE(string operator+<char, char_traits<char>, allocator<char> >(char const*, string const&)) 4039 4040_LIBCPP_END_NAMESPACE_STD 4041 4042#endif // _LIBCPP_STRING 4043