1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_SSTREAM 11#define _LIBCPP_SSTREAM 12 13// clang-format off 14 15/* 16 sstream synopsis [sstream.syn] 17 18// Class template basic_stringbuf [stringbuf] 19template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 20class basic_stringbuf 21 : public basic_streambuf<charT, traits> 22{ 23public: 24 typedef charT char_type; 25 typedef traits traits_type; 26 typedef typename traits_type::int_type int_type; 27 typedef typename traits_type::pos_type pos_type; 28 typedef typename traits_type::off_type off_type; 29 typedef Allocator allocator_type; 30 31 // [stringbuf.cons] constructors: 32 explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out); // before C++20 33 basic_stringbuf() : basic_stringbuf(ios_base::in | ios_base::out) {} // C++20 34 explicit basic_stringbuf(ios_base::openmode which); // C++20 35 explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& s, 36 ios_base::openmode which = ios_base::in | ios_base::out); 37 explicit basic_stringbuf(const allocator_type& a) 38 : basic_stringbuf(ios_base::in | ios_base::out, a) {} // C++20 39 basic_stringbuf(ios_base::openmode which, const allocator_type& a); // C++20 40 explicit basic_stringbuf(basic_string<char_type, traits_type, allocator_type>&& s, 41 ios_base::openmode which = ios_base::in | ios_base::out); // C++20 42 template <class SAlloc> 43 basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 44 : basic_stringbuf(s, ios_base::in | ios_base::out, a) {} // C++20 45 template <class SAlloc> 46 basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, 47 ios_base::openmode which, const allocator_type& a); // C++20 48 template <class SAlloc> 49 explicit basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, 50 ios_base::openmode which = ios_base::in | ios_base::out); // C++20 51 template<class T> 52 explicit basic_stringbuf(const T& t, 53 ios_base::openmode which = ios_base::in | ios_base::out); // Since C++26 54 template<class T> 55 basic_stringbuf(const T& t, const Allocator& a); // Since C++26 56 template<class T> 57 basic_stringbuf(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 58 basic_stringbuf(const basic_stringbuf&) = delete; 59 basic_stringbuf(basic_stringbuf&& rhs); 60 basic_stringbuf(basic_stringbuf&& rhs, const allocator_type& a); // C++20 61 62 // [stringbuf.assign] Assign and swap: 63 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 64 basic_stringbuf& operator=(basic_stringbuf&& rhs); 65 void swap(basic_stringbuf& rhs) noexcept(see below); // conditionally noexcept since C++20 66 67 // [stringbuf.members] Member functions: 68 allocator_type get_allocator() const noexcept; // C++20 69 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 70 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 71 template <class SAlloc> 72 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 73 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 74 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 75 void str(const basic_string<char_type, traits_type, allocator_type>& s); 76 template <class SAlloc> 77 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 78 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 79 template<class T> 80 void str(const T& t); // Since C++26 81 82protected: 83 // [stringbuf.virtuals] Overridden virtual functions: 84 virtual int_type underflow(); 85 virtual int_type pbackfail(int_type c = traits_type::eof()); 86 virtual int_type overflow (int_type c = traits_type::eof()); 87 virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize); 88 virtual pos_type seekoff(off_type off, ios_base::seekdir way, 89 ios_base::openmode which = ios_base::in | ios_base::out); 90 virtual pos_type seekpos(pos_type sp, 91 ios_base::openmode which = ios_base::in | ios_base::out); 92}; 93 94// [stringbuf.assign] non member swap 95template <class charT, class traits, class Allocator> 96void swap(basic_stringbuf<charT, traits, Allocator>& x, 97 basic_stringbuf<charT, traits, Allocator>& y); // conditionally noexcept since C++20 98 99typedef basic_stringbuf<char> stringbuf; 100typedef basic_stringbuf<wchar_t> wstringbuf; 101 102// Class template basic_istringstream [istringstream] 103template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 104class basic_istringstream 105 : public basic_istream<charT, traits> 106{ 107public: 108 typedef charT char_type; 109 typedef traits traits_type; 110 typedef typename traits_type::int_type int_type; 111 typedef typename traits_type::pos_type pos_type; 112 typedef typename traits_type::off_type off_type; 113 typedef Allocator allocator_type; 114 115 // [istringstream.cons] Constructors: 116 explicit basic_istringstream(ios_base::openmode which = ios_base::in); // before C++20 117 basic_istringstream() : basic_istringstream(ios_base::in) {} // C++20 118 explicit basic_istringstream(ios_base::openmode which); // C++20 119 explicit basic_istringstream(const basic_string<char_type, traits_type, allocator_type>& s, 120 ios_base::openmode which = ios_base::in); 121 basic_istringstream(ios_base::openmode which, const allocator_type& a); // C++20 122 explicit basic_istringstream(basic_string<char_type, traits_type, allocator_type>&& s, 123 ios_base::openmode which = ios_base::in); // C++20 124 template <class SAlloc> 125 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 126 : basic_istringstream(s, ios_base::in, a) {} // C++20 127 template <class SAlloc> 128 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 129 ios_base::openmode which, const allocator_type& a); // C++20 130 template <class SAlloc> 131 explicit basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 132 ios_base::openmode which = ios_base::in); // C++20 133 template<class T> 134 explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in); // Since C++26 135 template<class T> 136 basic_istringstream(const T& t, const Allocator& a); // Since C++26 137 template<class T> 138 basic_istringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 139 basic_istringstream(const basic_istringstream&) = delete; 140 basic_istringstream(basic_istringstream&& rhs); 141 142 // [istringstream.assign] Assign and swap: 143 basic_istringstream& operator=(const basic_istringstream&) = delete; 144 basic_istringstream& operator=(basic_istringstream&& rhs); 145 void swap(basic_istringstream& rhs); 146 147 // [istringstream.members] Member functions: 148 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 149 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 150 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 151 template <class SAlloc> 152 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 153 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 154 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 155 void str(const basic_string<char_type, traits_type, allocator_type>& s); 156 template <class SAlloc> 157 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 158 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 159 template<class T> 160 void str(const T& t); // Since C++26 161}; 162 163template <class charT, class traits, class Allocator> 164void swap(basic_istringstream<charT, traits, Allocator>& x, 165 basic_istringstream<charT, traits, Allocator>& y); 166 167typedef basic_istringstream<char> istringstream; 168typedef basic_istringstream<wchar_t> wistringstream; 169 170// Class template basic_ostringstream [ostringstream] 171template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 172class basic_ostringstream 173 : public basic_ostream<charT, traits> 174{ 175public: 176 // types: 177 typedef charT char_type; 178 typedef traits traits_type; 179 typedef typename traits_type::int_type int_type; 180 typedef typename traits_type::pos_type pos_type; 181 typedef typename traits_type::off_type off_type; 182 typedef Allocator allocator_type; 183 184 // [ostringstream.cons] Constructors: 185 explicit basic_ostringstream(ios_base::openmode which = ios_base::out); // before C++20 186 basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20 187 explicit basic_ostringstream(ios_base::openmode which); // C++20 188 explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& s, 189 ios_base::openmode which = ios_base::out); 190 basic_ostringstream(ios_base::openmode which, const allocator_type& a); // C++20 191 explicit basic_ostringstream(basic_string<char_type, traits_type, allocator_type>&& s, 192 ios_base::openmode which = ios_base::out); // C++20 193 template <class SAlloc> 194 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 195 : basic_ostringstream(s, ios_base::out, a) {} // C++20 196 template <class SAlloc> 197 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 198 ios_base::openmode which, const allocator_type& a); // C++20 199 template <class SAlloc> 200 explicit basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 201 ios_base::openmode which = ios_base::out); // C++20 202 template<class T> 203 explicit basic_ostringstream(const T& t, ios_base::openmode which = ios_base::out); // Since C++26 204 template<class T> 205 basic_ostringstream(const T& t, const Allocator& a); // Since C++26 206 template<class T> 207 basic_ostringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 208 basic_ostringstream(const basic_ostringstream&) = delete; 209 basic_ostringstream(basic_ostringstream&& rhs); 210 211 // [ostringstream.assign] Assign and swap: 212 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 213 basic_ostringstream& operator=(basic_ostringstream&& rhs); 214 void swap(basic_ostringstream& rhs); 215 216 // [ostringstream.members] Member functions: 217 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 218 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 219 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 220 template <class SAlloc> 221 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 222 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 223 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 224 void str(const basic_string<char_type, traits_type, allocator_type>& s); 225 template <class SAlloc> 226 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 227 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 228 template<class T> 229 void str(const T& t); // Since C++26 230}; 231 232template <class charT, class traits, class Allocator> 233void swap(basic_ostringstream<charT, traits, Allocator>& x, 234 basic_ostringstream<charT, traits, Allocator>& y); 235 236typedef basic_ostringstream<char> ostringstream; 237typedef basic_ostringstream<wchar_t> wostringstream; 238 239// Class template basic_stringstream [stringstream] 240template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 241class basic_stringstream 242 : public basic_iostream<charT, traits> 243{ 244public: 245 // types: 246 typedef charT char_type; 247 typedef traits traits_type; 248 typedef typename traits_type::int_type int_type; 249 typedef typename traits_type::pos_type pos_type; 250 typedef typename traits_type::off_type off_type; 251 typedef Allocator allocator_type; 252 253 // [stringstream.cons] constructors 254 explicit basic_stringstream(ios_base::openmode which = ios_base::out | ios_base::in); // before C++20 255 basic_stringstream() : basic_stringstream(ios_base::out | ios_base::in) {} // C++20 256 explicit basic_stringstream(ios_base::openmode which); // C++20 257 explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& s, 258 ios_base::openmode which = ios_base::out | ios_base::in); 259 basic_stringstream(ios_base::openmode which, const allocator_type& a); // C++20 260 explicit basic_stringstream(basic_string<char_type, traits_type, allocator_type>&& s, 261 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 262 template <class SAlloc> 263 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 264 : basic_stringstream(s, ios_base::out | ios_base::in, a) {} // C++20 265 template <class SAlloc> 266 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 267 ios_base::openmode which, const allocator_type& a); // C++20 268 template <class SAlloc> 269 explicit basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 270 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 271 template<class T> 272 explicit basic_stringstream(const T& t, 273 ios_base::openmode which = ios_base::out | ios_base::in); // Since C++26 274 template<class T> 275 basic_stringstream(const T& t, const Allocator& a); // Since C++26 276 template<class T> 277 basic_stringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 278 basic_stringstream(const basic_stringstream&) = delete; 279 basic_stringstream(basic_stringstream&& rhs); 280 281 // [stringstream.assign] Assign and swap: 282 basic_stringstream& operator=(const basic_stringstream&) = delete; 283 basic_stringstream& operator=(basic_stringstream&& rhs); 284 void swap(basic_stringstream& rhs); 285 286 // [stringstream.members] Member functions: 287 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 288 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 289 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 290 template <class SAlloc> 291 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 292 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 293 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 294 void str(const basic_string<char_type, traits_type, allocator_type>& s); 295 template <class SAlloc> 296 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 297 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 298 template<class T> 299 void str(const T& t); // Since C++26 300}; 301 302template <class charT, class traits, class Allocator> 303void swap(basic_stringstream<charT, traits, Allocator>& x, 304 basic_stringstream<charT, traits, Allocator>& y); 305 306typedef basic_stringstream<char> stringstream; 307typedef basic_stringstream<wchar_t> wstringstream; 308 309} // std 310 311*/ 312 313// clang-format on 314 315#include <__availability> 316#include <__config> 317#include <__fwd/sstream.h> 318#include <__ostream/basic_ostream.h> 319#include <__type_traits/is_convertible.h> 320#include <__utility/swap.h> 321#include <istream> 322#include <string> 323#include <string_view> 324#include <version> 325 326#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 327# pragma GCC system_header 328#endif 329 330_LIBCPP_PUSH_MACROS 331#include <__undef_macros> 332 333_LIBCPP_BEGIN_NAMESPACE_STD 334 335// Class template basic_stringbuf [stringbuf] 336 337template <class _CharT, class _Traits, class _Allocator> 338class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> { 339public: 340 typedef _CharT char_type; 341 typedef _Traits traits_type; 342 typedef typename traits_type::int_type int_type; 343 typedef typename traits_type::pos_type pos_type; 344 typedef typename traits_type::off_type off_type; 345 typedef _Allocator allocator_type; 346 347 typedef basic_string<char_type, traits_type, allocator_type> string_type; 348 349private: 350 string_type __str_; 351 mutable char_type* __hm_; 352 ios_base::openmode __mode_; 353 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs(); 354 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs); 355 356public: 357 // [stringbuf.cons] constructors: 358 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {} 359 360 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {} 361 362 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s, 363 ios_base::openmode __wch = ios_base::in | ios_base::out) 364 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) { 365 str(__s); 366 } 367 368#if _LIBCPP_STD_VER >= 20 369 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a) 370 : basic_stringbuf(ios_base::in | ios_base::out, __a) {} 371 372 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a) 373 : __str_(__a), __hm_(nullptr), __mode_(__wch) {} 374 375 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s, 376 ios_base::openmode __wch = ios_base::in | ios_base::out) 377 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) { 378 __init_buf_ptrs(); 379 } 380 381 template <class _SAlloc> 382 _LIBCPP_HIDE_FROM_ABI 383 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a) 384 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {} 385 386 template <class _SAlloc> 387 _LIBCPP_HIDE_FROM_ABI basic_stringbuf( 388 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a) 389 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) { 390 __init_buf_ptrs(); 391 } 392 393 template <class _SAlloc> 394 requires(!is_same_v<_SAlloc, allocator_type>) 395 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, 396 ios_base::openmode __wch = ios_base::in | ios_base::out) 397 : __str_(__s), __hm_(nullptr), __mode_(__wch) { 398 __init_buf_ptrs(); 399 } 400#endif // _LIBCPP_STD_VER >= 20 401 402#if _LIBCPP_STD_VER >= 26 403 404 template <class _Tp> 405 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 406 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const _Tp& __t, 407 ios_base::openmode __which = ios_base::in | ios_base::out) 408 : basic_stringbuf(__t, __which, _Allocator()) {} 409 410 template <class _Tp> 411 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 412 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, const _Allocator& __a) 413 : basic_stringbuf(__t, ios_base::in | ios_base::out, __a) {} 414 415 template <class _Tp> 416 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 417 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 418 : __hm_(nullptr), __mode_(__which) { 419 basic_string_view<_CharT, _Traits> __sv = __t; 420 __str_ = string_type(__sv, __a); 421 __init_buf_ptrs(); 422 } 423 424#endif // _LIBCPP_STD_VER >= 26 425 426 basic_stringbuf(const basic_stringbuf&) = delete; 427 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 428 429#if _LIBCPP_STD_VER >= 20 430 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a) 431 : basic_stringbuf(__rhs.__mode_, __a) { 432 __move_init(std::move(__rhs)); 433 } 434#endif 435 436 // [stringbuf.assign] Assign and swap: 437 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 438 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 439 void swap(basic_stringbuf& __rhs) 440#if _LIBCPP_STD_VER >= 20 441 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 442 allocator_traits<allocator_type>::is_always_equal::value) 443#endif 444 ; 445 446 // [stringbuf.members] Member functions: 447 448#if _LIBCPP_STD_VER >= 20 449 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); } 450#endif 451 452#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 453 string_type str() const; 454#else 455 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return str(__str_.get_allocator()); } 456 457 _LIBCPP_HIDE_FROM_ABI string_type str() && { 458 const basic_string_view<_CharT, _Traits> __view = view(); 459 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data(); 460 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator()); 461 // But we need something that works in C++20 also. 462 string_type __result(std::move(__str_), __str_.get_allocator()); 463 __result.resize(__pos + __view.size()); 464 __result.erase(0, __pos); 465 __init_buf_ptrs(); 466 return __result; 467 } 468#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 469 470#if _LIBCPP_STD_VER >= 20 471 template <class _SAlloc> 472 requires __is_allocator<_SAlloc>::value 473 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 474 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa); 475 } 476 477 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept; 478#endif // _LIBCPP_STD_VER >= 20 479 480 void str(const string_type& __s) { 481 __str_ = __s; 482 __init_buf_ptrs(); 483 } 484 485#if _LIBCPP_STD_VER >= 20 486 template <class _SAlloc> 487 requires(!is_same_v<_SAlloc, allocator_type>) 488 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 489 __str_ = __s; 490 __init_buf_ptrs(); 491 } 492 493 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { 494 __str_ = std::move(__s); 495 __init_buf_ptrs(); 496 } 497#endif // _LIBCPP_STD_VER >= 20 498 499#if _LIBCPP_STD_VER >= 26 500 501 template <class _Tp> 502 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 503 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 504 basic_string_view<_CharT, _Traits> __sv = __t; 505 __str_ = __sv; 506 __init_buf_ptrs(); 507 } 508 509#endif // _LIBCPP_STD_VER >= 26 510 511protected: 512 // [stringbuf.virtuals] Overridden virtual functions: 513 int_type underflow() override; 514 int_type pbackfail(int_type __c = traits_type::eof()) override; 515 int_type overflow(int_type __c = traits_type::eof()) override; 516 pos_type 517 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override; 518 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 519 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override { 520 return seekoff(__sp, ios_base::beg, __wch); 521 } 522}; 523 524template <class _CharT, class _Traits, class _Allocator> 525_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 526 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 527 ptrdiff_t __binp = -1; 528 ptrdiff_t __ninp = -1; 529 ptrdiff_t __einp = -1; 530 if (__rhs.eback() != nullptr) { 531 __binp = __rhs.eback() - __p; 532 __ninp = __rhs.gptr() - __p; 533 __einp = __rhs.egptr() - __p; 534 } 535 ptrdiff_t __bout = -1; 536 ptrdiff_t __nout = -1; 537 ptrdiff_t __eout = -1; 538 if (__rhs.pbase() != nullptr) { 539 __bout = __rhs.pbase() - __p; 540 __nout = __rhs.pptr() - __p; 541 __eout = __rhs.epptr() - __p; 542 } 543 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 544 __str_ = std::move(__rhs.__str_); 545 __p = const_cast<char_type*>(__str_.data()); 546 if (__binp != -1) 547 this->setg(__p + __binp, __p + __ninp, __p + __einp); 548 if (__bout != -1) { 549 this->setp(__p + __bout, __p + __eout); 550 this->__pbump(__nout); 551 } 552 __hm_ = __hm == -1 ? nullptr : __p + __hm; 553 __p = const_cast<char_type*>(__rhs.__str_.data()); 554 __rhs.setg(__p, __p, __p); 555 __rhs.setp(__p, __p); 556 __rhs.__hm_ = __p; 557 this->pubimbue(__rhs.getloc()); 558} 559 560template <class _CharT, class _Traits, class _Allocator> 561basic_stringbuf<_CharT, _Traits, _Allocator>& 562basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) { 563 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 564 ptrdiff_t __binp = -1; 565 ptrdiff_t __ninp = -1; 566 ptrdiff_t __einp = -1; 567 if (__rhs.eback() != nullptr) { 568 __binp = __rhs.eback() - __p; 569 __ninp = __rhs.gptr() - __p; 570 __einp = __rhs.egptr() - __p; 571 } 572 ptrdiff_t __bout = -1; 573 ptrdiff_t __nout = -1; 574 ptrdiff_t __eout = -1; 575 if (__rhs.pbase() != nullptr) { 576 __bout = __rhs.pbase() - __p; 577 __nout = __rhs.pptr() - __p; 578 __eout = __rhs.epptr() - __p; 579 } 580 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 581 __str_ = std::move(__rhs.__str_); 582 __p = const_cast<char_type*>(__str_.data()); 583 if (__binp != -1) 584 this->setg(__p + __binp, __p + __ninp, __p + __einp); 585 else 586 this->setg(nullptr, nullptr, nullptr); 587 if (__bout != -1) { 588 this->setp(__p + __bout, __p + __eout); 589 this->__pbump(__nout); 590 } else 591 this->setp(nullptr, nullptr); 592 593 __hm_ = __hm == -1 ? nullptr : __p + __hm; 594 __mode_ = __rhs.__mode_; 595 __p = const_cast<char_type*>(__rhs.__str_.data()); 596 __rhs.setg(__p, __p, __p); 597 __rhs.setp(__p, __p); 598 __rhs.__hm_ = __p; 599 this->pubimbue(__rhs.getloc()); 600 return *this; 601} 602 603template <class _CharT, class _Traits, class _Allocator> 604void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) 605#if _LIBCPP_STD_VER >= 20 606 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value || 607 allocator_traits<_Allocator>::is_always_equal::value) 608#endif 609{ 610 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 611 ptrdiff_t __rbinp = -1; 612 ptrdiff_t __rninp = -1; 613 ptrdiff_t __reinp = -1; 614 if (__rhs.eback() != nullptr) { 615 __rbinp = __rhs.eback() - __p; 616 __rninp = __rhs.gptr() - __p; 617 __reinp = __rhs.egptr() - __p; 618 } 619 ptrdiff_t __rbout = -1; 620 ptrdiff_t __rnout = -1; 621 ptrdiff_t __reout = -1; 622 if (__rhs.pbase() != nullptr) { 623 __rbout = __rhs.pbase() - __p; 624 __rnout = __rhs.pptr() - __p; 625 __reout = __rhs.epptr() - __p; 626 } 627 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 628 __p = const_cast<char_type*>(__str_.data()); 629 ptrdiff_t __lbinp = -1; 630 ptrdiff_t __lninp = -1; 631 ptrdiff_t __leinp = -1; 632 if (this->eback() != nullptr) { 633 __lbinp = this->eback() - __p; 634 __lninp = this->gptr() - __p; 635 __leinp = this->egptr() - __p; 636 } 637 ptrdiff_t __lbout = -1; 638 ptrdiff_t __lnout = -1; 639 ptrdiff_t __leout = -1; 640 if (this->pbase() != nullptr) { 641 __lbout = this->pbase() - __p; 642 __lnout = this->pptr() - __p; 643 __leout = this->epptr() - __p; 644 } 645 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 646 std::swap(__mode_, __rhs.__mode_); 647 __str_.swap(__rhs.__str_); 648 __p = const_cast<char_type*>(__str_.data()); 649 if (__rbinp != -1) 650 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 651 else 652 this->setg(nullptr, nullptr, nullptr); 653 if (__rbout != -1) { 654 this->setp(__p + __rbout, __p + __reout); 655 this->__pbump(__rnout); 656 } else 657 this->setp(nullptr, nullptr); 658 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 659 __p = const_cast<char_type*>(__rhs.__str_.data()); 660 if (__lbinp != -1) 661 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 662 else 663 __rhs.setg(nullptr, nullptr, nullptr); 664 if (__lbout != -1) { 665 __rhs.setp(__p + __lbout, __p + __leout); 666 __rhs.__pbump(__lnout); 667 } else 668 __rhs.setp(nullptr, nullptr); 669 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 670 locale __tl = __rhs.getloc(); 671 __rhs.pubimbue(this->getloc()); 672 this->pubimbue(__tl); 673} 674 675template <class _CharT, class _Traits, class _Allocator> 676inline _LIBCPP_HIDE_FROM_ABI void 677swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) 678#if _LIBCPP_STD_VER >= 20 679 noexcept(noexcept(__x.swap(__y))) 680#endif 681{ 682 __x.swap(__y); 683} 684 685#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 686template <class _CharT, class _Traits, class _Allocator> 687basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 688 if (__mode_ & ios_base::out) { 689 if (__hm_ < this->pptr()) 690 __hm_ = this->pptr(); 691 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 692 } else if (__mode_ & ios_base::in) 693 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 694 return string_type(__str_.get_allocator()); 695} 696#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 697 698template <class _CharT, class _Traits, class _Allocator> 699_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 700 __hm_ = nullptr; 701 char_type* __data = const_cast<char_type*>(__str_.data()); 702 typename string_type::size_type __sz = __str_.size(); 703 if (__mode_ & ios_base::in) { 704 __hm_ = __data + __sz; 705 this->setg(__data, __data, __hm_); 706 } 707 if (__mode_ & ios_base::out) { 708 __hm_ = __data + __sz; 709 __str_.resize(__str_.capacity()); 710 this->setp(__data, __data + __str_.size()); 711 if (__mode_ & (ios_base::app | ios_base::ate)) { 712 while (__sz > INT_MAX) { 713 this->pbump(INT_MAX); 714 __sz -= INT_MAX; 715 } 716 if (__sz > 0) 717 this->pbump(__sz); 718 } 719 } 720} 721 722#if _LIBCPP_STD_VER >= 20 723template <class _CharT, class _Traits, class _Allocator> 724_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits> 725basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept { 726 if (__mode_ & ios_base::out) { 727 if (__hm_ < this->pptr()) 728 __hm_ = this->pptr(); 729 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_); 730 } else if (__mode_ & ios_base::in) 731 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr()); 732 return basic_string_view<_CharT, _Traits>(); 733} 734#endif // _LIBCPP_STD_VER >= 20 735 736template <class _CharT, class _Traits, class _Allocator> 737typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 738basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() { 739 if (__hm_ < this->pptr()) 740 __hm_ = this->pptr(); 741 if (__mode_ & ios_base::in) { 742 if (this->egptr() < __hm_) 743 this->setg(this->eback(), this->gptr(), __hm_); 744 if (this->gptr() < this->egptr()) 745 return traits_type::to_int_type(*this->gptr()); 746 } 747 return traits_type::eof(); 748} 749 750template <class _CharT, class _Traits, class _Allocator> 751typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 752basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) { 753 if (__hm_ < this->pptr()) 754 __hm_ = this->pptr(); 755 if (this->eback() < this->gptr()) { 756 if (traits_type::eq_int_type(__c, traits_type::eof())) { 757 this->setg(this->eback(), this->gptr() - 1, __hm_); 758 return traits_type::not_eof(__c); 759 } 760 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) { 761 this->setg(this->eback(), this->gptr() - 1, __hm_); 762 *this->gptr() = traits_type::to_char_type(__c); 763 return __c; 764 } 765 } 766 return traits_type::eof(); 767} 768 769template <class _CharT, class _Traits, class _Allocator> 770typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 771basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) { 772 if (!traits_type::eq_int_type(__c, traits_type::eof())) { 773 ptrdiff_t __ninp = this->gptr() - this->eback(); 774 if (this->pptr() == this->epptr()) { 775 if (!(__mode_ & ios_base::out)) 776 return traits_type::eof(); 777#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 778 try { 779#endif // _LIBCPP_HAS_NO_EXCEPTIONS 780 ptrdiff_t __nout = this->pptr() - this->pbase(); 781 ptrdiff_t __hm = __hm_ - this->pbase(); 782 __str_.push_back(char_type()); 783 __str_.resize(__str_.capacity()); 784 char_type* __p = const_cast<char_type*>(__str_.data()); 785 this->setp(__p, __p + __str_.size()); 786 this->__pbump(__nout); 787 __hm_ = this->pbase() + __hm; 788#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 789 } catch (...) { 790 return traits_type::eof(); 791 } 792#endif // _LIBCPP_HAS_NO_EXCEPTIONS 793 } 794 __hm_ = std::max(this->pptr() + 1, __hm_); 795 if (__mode_ & ios_base::in) { 796 char_type* __p = const_cast<char_type*>(__str_.data()); 797 this->setg(__p, __p + __ninp, __hm_); 798 } 799 return this->sputc(traits_type::to_char_type(__c)); 800 } 801 return traits_type::not_eof(__c); 802} 803 804template <class _CharT, class _Traits, class _Allocator> 805typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff( 806 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) { 807 if (__hm_ < this->pptr()) 808 __hm_ = this->pptr(); 809 if ((__wch & (ios_base::in | ios_base::out)) == 0) 810 return pos_type(-1); 811 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur) 812 return pos_type(-1); 813 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 814 off_type __noff; 815 switch (__way) { 816 case ios_base::beg: 817 __noff = 0; 818 break; 819 case ios_base::cur: 820 if (__wch & ios_base::in) 821 __noff = this->gptr() - this->eback(); 822 else 823 __noff = this->pptr() - this->pbase(); 824 break; 825 case ios_base::end: 826 __noff = __hm; 827 break; 828 default: 829 return pos_type(-1); 830 } 831 __noff += __off; 832 if (__noff < 0 || __hm < __noff) 833 return pos_type(-1); 834 if (__noff != 0) { 835 if ((__wch & ios_base::in) && this->gptr() == nullptr) 836 return pos_type(-1); 837 if ((__wch & ios_base::out) && this->pptr() == nullptr) 838 return pos_type(-1); 839 } 840 if (__wch & ios_base::in) 841 this->setg(this->eback(), this->eback() + __noff, __hm_); 842 if (__wch & ios_base::out) { 843 this->setp(this->pbase(), this->epptr()); 844 this->__pbump(__noff); 845 } 846 return pos_type(__noff); 847} 848 849// Class template basic_istringstream [istringstream] 850 851template <class _CharT, class _Traits, class _Allocator> 852class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> { 853public: 854 typedef _CharT char_type; 855 typedef _Traits traits_type; 856 typedef typename traits_type::int_type int_type; 857 typedef typename traits_type::pos_type pos_type; 858 typedef typename traits_type::off_type off_type; 859 typedef _Allocator allocator_type; 860 861 typedef basic_string<char_type, traits_type, allocator_type> string_type; 862 863private: 864 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 865 866public: 867 // [istringstream.cons] Constructors: 868 _LIBCPP_HIDE_FROM_ABI basic_istringstream() : basic_istream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in) {} 869 870 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch) 871 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::in) {} 872 873 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in) 874 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::in) {} 875 876#if _LIBCPP_STD_VER >= 20 877 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a) 878 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {} 879 880 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in) 881 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {} 882 883 template <class _SAlloc> 884 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 885 : basic_istringstream(__s, ios_base::in, __a) {} 886 887 template <class _SAlloc> 888 _LIBCPP_HIDE_FROM_ABI basic_istringstream( 889 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 890 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {} 891 892 template <class _SAlloc> 893 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 894 ios_base::openmode __wch = ios_base::in) 895 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 896#endif // _LIBCPP_STD_VER >= 20 897 898#if _LIBCPP_STD_VER >= 26 899 900 template <class _Tp> 901 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 902 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const _Tp& __t, ios_base::openmode __which = ios_base::in) 903 : basic_istringstream(__t, __which, _Allocator()) {} 904 905 template <class _Tp> 906 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 907 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, const _Allocator& __a) 908 : basic_istringstream(__t, ios_base::in, __a) {} 909 910 template <class _Tp> 911 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 912 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 913 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::in, __a) {} 914 915#endif // _LIBCPP_STD_VER >= 26 916 917 basic_istringstream(const basic_istringstream&) = delete; 918 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs) 919 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 920 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 921 } 922 923 // [istringstream.assign] Assign and swap: 924 basic_istringstream& operator=(const basic_istringstream&) = delete; 925 basic_istringstream& operator=(basic_istringstream&& __rhs) { 926 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 927 __sb_ = std::move(__rhs.__sb_); 928 return *this; 929 } 930 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) { 931 basic_istream<char_type, traits_type>::swap(__rhs); 932 __sb_.swap(__rhs.__sb_); 933 } 934 935 // [istringstream.members] Member functions: 936 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 937 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 938 } 939 940#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 941 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 942#else 943 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 944 945 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 946#endif 947 948#if _LIBCPP_STD_VER >= 20 949 template <class _SAlloc> 950 requires __is_allocator<_SAlloc>::value 951 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 952 return __sb_.str(__sa); 953 } 954 955 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 956#endif // _LIBCPP_STD_VER >= 20 957 958 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 959 960#if _LIBCPP_STD_VER >= 20 961 template <class _SAlloc> 962 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 963 __sb_.str(__s); 964 } 965 966 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 967#endif // _LIBCPP_STD_VER >= 20 968 969#if _LIBCPP_STD_VER >= 26 970 template <class _Tp> 971 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 972 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 973 rdbuf()->str(__t); 974 } 975#endif // _LIBCPP_STD_VER >= 26 976}; 977 978template <class _CharT, class _Traits, class _Allocator> 979inline _LIBCPP_HIDE_FROM_ABI void 980swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) { 981 __x.swap(__y); 982} 983 984// Class template basic_ostringstream [ostringstream] 985 986template <class _CharT, class _Traits, class _Allocator> 987class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> { 988public: 989 typedef _CharT char_type; 990 typedef _Traits traits_type; 991 typedef typename traits_type::int_type int_type; 992 typedef typename traits_type::pos_type pos_type; 993 typedef typename traits_type::off_type off_type; 994 typedef _Allocator allocator_type; 995 996 typedef basic_string<char_type, traits_type, allocator_type> string_type; 997 998private: 999 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1000 1001public: 1002 // [ostringstream.cons] Constructors: 1003 _LIBCPP_HIDE_FROM_ABI basic_ostringstream() : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::out) {} 1004 1005 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch) 1006 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::out) {} 1007 1008 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out) 1009 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::out) {} 1010 1011#if _LIBCPP_STD_VER >= 20 1012 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a) 1013 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {} 1014 1015 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out) 1016 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {} 1017 1018 template <class _SAlloc> 1019 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1020 : basic_ostringstream(__s, ios_base::out, __a) {} 1021 1022 template <class _SAlloc> 1023 _LIBCPP_HIDE_FROM_ABI basic_ostringstream( 1024 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1025 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {} 1026 1027 template <class _SAlloc> 1028 requires(!is_same_v<_SAlloc, allocator_type>) 1029 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1030 ios_base::openmode __wch = ios_base::out) 1031 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1032#endif // _LIBCPP_STD_VER >= 20 1033 1034#if _LIBCPP_STD_VER >= 26 1035 1036 template <class _Tp> 1037 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1038 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const _Tp& __t, ios_base::openmode __which = ios_base::out) 1039 : basic_ostringstream(__t, __which | ios_base::out, _Allocator()) {} 1040 1041 template <class _Tp> 1042 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1043 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, const _Allocator& __a) 1044 : basic_ostringstream(__t, ios_base::out, __a) {} 1045 1046 template <class _Tp> 1047 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1048 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1049 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::out, __a) {} 1050 1051#endif // _LIBCPP_STD_VER >= 26 1052 1053 basic_ostringstream(const basic_ostringstream&) = delete; 1054 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs) 1055 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1056 basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); 1057 } 1058 1059 // [ostringstream.assign] Assign and swap: 1060 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 1061 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 1062 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 1063 __sb_ = std::move(__rhs.__sb_); 1064 return *this; 1065 } 1066 1067 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) { 1068 basic_ostream<char_type, traits_type>::swap(__rhs); 1069 __sb_.swap(__rhs.__sb_); 1070 } 1071 1072 // [ostringstream.members] Member functions: 1073 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1074 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1075 } 1076 1077#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1078 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1079#else 1080 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1081 1082 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1083#endif 1084 1085#if _LIBCPP_STD_VER >= 20 1086 template <class _SAlloc> 1087 requires __is_allocator<_SAlloc>::value 1088 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1089 return __sb_.str(__sa); 1090 } 1091 1092 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1093#endif // _LIBCPP_STD_VER >= 20 1094 1095 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1096 1097#if _LIBCPP_STD_VER >= 20 1098 template <class _SAlloc> 1099 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1100 __sb_.str(__s); 1101 } 1102 1103 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1104#endif // _LIBCPP_STD_VER >= 20 1105 1106#if _LIBCPP_STD_VER >= 26 1107 template <class _Tp> 1108 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1109 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1110 rdbuf()->str(__t); 1111 } 1112#endif // _LIBCPP_STD_VER >= 26 1113}; 1114 1115template <class _CharT, class _Traits, class _Allocator> 1116inline _LIBCPP_HIDE_FROM_ABI void 1117swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) { 1118 __x.swap(__y); 1119} 1120 1121// Class template basic_stringstream [stringstream] 1122 1123template <class _CharT, class _Traits, class _Allocator> 1124class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> { 1125public: 1126 typedef _CharT char_type; 1127 typedef _Traits traits_type; 1128 typedef typename traits_type::int_type int_type; 1129 typedef typename traits_type::pos_type pos_type; 1130 typedef typename traits_type::off_type off_type; 1131 typedef _Allocator allocator_type; 1132 1133 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1134 1135private: 1136 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1137 1138public: 1139 // [stringstream.cons] constructors 1140 _LIBCPP_HIDE_FROM_ABI basic_stringstream() 1141 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in | ios_base::out) {} 1142 1143 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch) 1144 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__wch) {} 1145 1146 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s, 1147 ios_base::openmode __wch = ios_base::in | ios_base::out) 1148 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch) {} 1149 1150#if _LIBCPP_STD_VER >= 20 1151 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a) 1152 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {} 1153 1154 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s, 1155 ios_base::openmode __wch = ios_base::out | ios_base::in) 1156 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {} 1157 1158 template <class _SAlloc> 1159 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1160 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {} 1161 1162 template <class _SAlloc> 1163 _LIBCPP_HIDE_FROM_ABI 1164 basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1165 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {} 1166 1167 template <class _SAlloc> 1168 requires(!is_same_v<_SAlloc, allocator_type>) 1169 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1170 ios_base::openmode __wch = ios_base::out | ios_base::in) 1171 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1172#endif // _LIBCPP_STD_VER >= 20 1173 1174#if _LIBCPP_STD_VER >= 26 1175 1176 template <class _Tp> 1177 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1178 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const _Tp& __t, 1179 ios_base::openmode __which = ios_base::out | ios_base::in) 1180 : basic_stringstream(__t, __which, _Allocator()) {} 1181 1182 template <class _Tp> 1183 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1184 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, const _Allocator& __a) 1185 : basic_stringstream(__t, ios_base::out | ios_base::in, __a) {} 1186 1187 template <class _Tp> 1188 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1189 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1190 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which, __a) {} 1191 1192#endif // _LIBCPP_STD_VER >= 26 1193 1194 basic_stringstream(const basic_stringstream&) = delete; 1195 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs) 1196 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1197 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 1198 } 1199 1200 // [stringstream.assign] Assign and swap: 1201 basic_stringstream& operator=(const basic_stringstream&) = delete; 1202 basic_stringstream& operator=(basic_stringstream&& __rhs) { 1203 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 1204 __sb_ = std::move(__rhs.__sb_); 1205 return *this; 1206 } 1207 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) { 1208 basic_iostream<char_type, traits_type>::swap(__rhs); 1209 __sb_.swap(__rhs.__sb_); 1210 } 1211 1212 // [stringstream.members] Member functions: 1213 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1214 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1215 } 1216 1217#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1218 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1219#else 1220 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1221 1222 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1223#endif 1224 1225#if _LIBCPP_STD_VER >= 20 1226 template <class _SAlloc> 1227 requires __is_allocator<_SAlloc>::value 1228 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1229 return __sb_.str(__sa); 1230 } 1231 1232 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1233#endif // _LIBCPP_STD_VER >= 20 1234 1235 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1236 1237#if _LIBCPP_STD_VER >= 20 1238 template <class _SAlloc> 1239 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1240 __sb_.str(__s); 1241 } 1242 1243 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1244#endif // _LIBCPP_STD_VER >= 20 1245 1246#if _LIBCPP_STD_VER >= 26 1247 template <class _Tp> 1248 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1249 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1250 rdbuf()->str(__t); 1251 } 1252#endif // _LIBCPP_STD_VER >= 26 1253}; 1254 1255template <class _CharT, class _Traits, class _Allocator> 1256inline _LIBCPP_HIDE_FROM_ABI void 1257swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) { 1258 __x.swap(__y); 1259} 1260 1261#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 1262extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 1263extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 1264extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 1265extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 1266#endif 1267 1268_LIBCPP_END_NAMESPACE_STD 1269 1270_LIBCPP_POP_MACROS 1271 1272#if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 1273# include <ostream> 1274# include <type_traits> 1275#endif 1276 1277#endif // _LIBCPP_SSTREAM 1278