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 <__config> 316#include <__fwd/sstream.h> 317#include <__ostream/basic_ostream.h> 318#include <__type_traits/is_convertible.h> 319#include <__utility/swap.h> 320#include <istream> 321#include <string> 322#include <string_view> 323#include <version> 324 325#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 326# pragma GCC system_header 327#endif 328 329_LIBCPP_PUSH_MACROS 330#include <__undef_macros> 331 332_LIBCPP_BEGIN_NAMESPACE_STD 333 334// Class template basic_stringbuf [stringbuf] 335 336template <class _CharT, class _Traits, class _Allocator> 337class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> { 338public: 339 typedef _CharT char_type; 340 typedef _Traits traits_type; 341 typedef typename traits_type::int_type int_type; 342 typedef typename traits_type::pos_type pos_type; 343 typedef typename traits_type::off_type off_type; 344 typedef _Allocator allocator_type; 345 346 typedef basic_string<char_type, traits_type, allocator_type> string_type; 347 348private: 349 string_type __str_; 350 mutable char_type* __hm_; 351 ios_base::openmode __mode_; 352 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs(); 353 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs); 354 355public: 356 // [stringbuf.cons] constructors: 357 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {} 358 359 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {} 360 361 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s, 362 ios_base::openmode __wch = ios_base::in | ios_base::out) 363 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) { 364 str(__s); 365 } 366 367#if _LIBCPP_STD_VER >= 20 368 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a) 369 : basic_stringbuf(ios_base::in | ios_base::out, __a) {} 370 371 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a) 372 : __str_(__a), __hm_(nullptr), __mode_(__wch) {} 373 374 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s, 375 ios_base::openmode __wch = ios_base::in | ios_base::out) 376 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) { 377 __init_buf_ptrs(); 378 } 379 380 template <class _SAlloc> 381 _LIBCPP_HIDE_FROM_ABI 382 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a) 383 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {} 384 385 template <class _SAlloc> 386 _LIBCPP_HIDE_FROM_ABI basic_stringbuf( 387 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a) 388 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) { 389 __init_buf_ptrs(); 390 } 391 392 template <class _SAlloc> 393 requires(!is_same_v<_SAlloc, allocator_type>) 394 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, 395 ios_base::openmode __wch = ios_base::in | ios_base::out) 396 : __str_(__s), __hm_(nullptr), __mode_(__wch) { 397 __init_buf_ptrs(); 398 } 399#endif // _LIBCPP_STD_VER >= 20 400 401#if _LIBCPP_STD_VER >= 26 402 403 template <class _Tp> 404 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 405 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const _Tp& __t, 406 ios_base::openmode __which = ios_base::in | ios_base::out) 407 : basic_stringbuf(__t, __which, _Allocator()) {} 408 409 template <class _Tp> 410 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 411 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, const _Allocator& __a) 412 : basic_stringbuf(__t, ios_base::in | ios_base::out, __a) {} 413 414 template <class _Tp> 415 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 416 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 417 : __hm_(nullptr), __mode_(__which) { 418 basic_string_view<_CharT, _Traits> __sv = __t; 419 __str_ = string_type(__sv, __a); 420 __init_buf_ptrs(); 421 } 422 423#endif // _LIBCPP_STD_VER >= 26 424 425 basic_stringbuf(const basic_stringbuf&) = delete; 426 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 427 428#if _LIBCPP_STD_VER >= 20 429 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a) 430 : basic_stringbuf(__rhs.__mode_, __a) { 431 __move_init(std::move(__rhs)); 432 } 433#endif 434 435 // [stringbuf.assign] Assign and swap: 436 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 437 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 438 void swap(basic_stringbuf& __rhs) 439#if _LIBCPP_STD_VER >= 20 440 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 441 allocator_traits<allocator_type>::is_always_equal::value) 442#endif 443 ; 444 445 // [stringbuf.members] Member functions: 446 447#if _LIBCPP_STD_VER >= 20 448 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); } 449#endif 450 451#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 452 string_type str() const; 453#else 454 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return str(__str_.get_allocator()); } 455 456 _LIBCPP_HIDE_FROM_ABI string_type str() && { 457 const basic_string_view<_CharT, _Traits> __view = view(); 458 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data(); 459 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator()); 460 // But we need something that works in C++20 also. 461 string_type __result(std::move(__str_), __str_.get_allocator()); 462 __result.resize(__pos + __view.size()); 463 __result.erase(0, __pos); 464 __init_buf_ptrs(); 465 return __result; 466 } 467#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 468 469#if _LIBCPP_STD_VER >= 20 470 template <class _SAlloc> 471 requires __is_allocator<_SAlloc>::value 472 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 473 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa); 474 } 475 476 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept; 477#endif // _LIBCPP_STD_VER >= 20 478 479 void str(const string_type& __s) { 480 __str_ = __s; 481 __init_buf_ptrs(); 482 } 483 484#if _LIBCPP_STD_VER >= 20 485 template <class _SAlloc> 486 requires(!is_same_v<_SAlloc, allocator_type>) 487 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 488 __str_ = __s; 489 __init_buf_ptrs(); 490 } 491 492 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { 493 __str_ = std::move(__s); 494 __init_buf_ptrs(); 495 } 496#endif // _LIBCPP_STD_VER >= 20 497 498#if _LIBCPP_STD_VER >= 26 499 500 template <class _Tp> 501 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 502 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 503 basic_string_view<_CharT, _Traits> __sv = __t; 504 __str_ = __sv; 505 __init_buf_ptrs(); 506 } 507 508#endif // _LIBCPP_STD_VER >= 26 509 510protected: 511 // [stringbuf.virtuals] Overridden virtual functions: 512 int_type underflow() override; 513 int_type pbackfail(int_type __c = traits_type::eof()) override; 514 int_type overflow(int_type __c = traits_type::eof()) override; 515 pos_type 516 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override; 517 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 518 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override { 519 return seekoff(__sp, ios_base::beg, __wch); 520 } 521}; 522 523template <class _CharT, class _Traits, class _Allocator> 524_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 525 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 526 ptrdiff_t __binp = -1; 527 ptrdiff_t __ninp = -1; 528 ptrdiff_t __einp = -1; 529 if (__rhs.eback() != nullptr) { 530 __binp = __rhs.eback() - __p; 531 __ninp = __rhs.gptr() - __p; 532 __einp = __rhs.egptr() - __p; 533 } 534 ptrdiff_t __bout = -1; 535 ptrdiff_t __nout = -1; 536 ptrdiff_t __eout = -1; 537 if (__rhs.pbase() != nullptr) { 538 __bout = __rhs.pbase() - __p; 539 __nout = __rhs.pptr() - __p; 540 __eout = __rhs.epptr() - __p; 541 } 542 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 543 __str_ = std::move(__rhs.__str_); 544 __p = const_cast<char_type*>(__str_.data()); 545 if (__binp != -1) 546 this->setg(__p + __binp, __p + __ninp, __p + __einp); 547 if (__bout != -1) { 548 this->setp(__p + __bout, __p + __eout); 549 this->__pbump(__nout); 550 } 551 __hm_ = __hm == -1 ? nullptr : __p + __hm; 552 __p = const_cast<char_type*>(__rhs.__str_.data()); 553 __rhs.setg(__p, __p, __p); 554 __rhs.setp(__p, __p); 555 __rhs.__hm_ = __p; 556 this->pubimbue(__rhs.getloc()); 557} 558 559template <class _CharT, class _Traits, class _Allocator> 560basic_stringbuf<_CharT, _Traits, _Allocator>& 561basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) { 562 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 563 ptrdiff_t __binp = -1; 564 ptrdiff_t __ninp = -1; 565 ptrdiff_t __einp = -1; 566 if (__rhs.eback() != nullptr) { 567 __binp = __rhs.eback() - __p; 568 __ninp = __rhs.gptr() - __p; 569 __einp = __rhs.egptr() - __p; 570 } 571 ptrdiff_t __bout = -1; 572 ptrdiff_t __nout = -1; 573 ptrdiff_t __eout = -1; 574 if (__rhs.pbase() != nullptr) { 575 __bout = __rhs.pbase() - __p; 576 __nout = __rhs.pptr() - __p; 577 __eout = __rhs.epptr() - __p; 578 } 579 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 580 __str_ = std::move(__rhs.__str_); 581 __p = const_cast<char_type*>(__str_.data()); 582 if (__binp != -1) 583 this->setg(__p + __binp, __p + __ninp, __p + __einp); 584 else 585 this->setg(nullptr, nullptr, nullptr); 586 if (__bout != -1) { 587 this->setp(__p + __bout, __p + __eout); 588 this->__pbump(__nout); 589 } else 590 this->setp(nullptr, nullptr); 591 592 __hm_ = __hm == -1 ? nullptr : __p + __hm; 593 __mode_ = __rhs.__mode_; 594 __p = const_cast<char_type*>(__rhs.__str_.data()); 595 __rhs.setg(__p, __p, __p); 596 __rhs.setp(__p, __p); 597 __rhs.__hm_ = __p; 598 this->pubimbue(__rhs.getloc()); 599 return *this; 600} 601 602template <class _CharT, class _Traits, class _Allocator> 603void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) 604#if _LIBCPP_STD_VER >= 20 605 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value || 606 allocator_traits<_Allocator>::is_always_equal::value) 607#endif 608{ 609 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 610 ptrdiff_t __rbinp = -1; 611 ptrdiff_t __rninp = -1; 612 ptrdiff_t __reinp = -1; 613 if (__rhs.eback() != nullptr) { 614 __rbinp = __rhs.eback() - __p; 615 __rninp = __rhs.gptr() - __p; 616 __reinp = __rhs.egptr() - __p; 617 } 618 ptrdiff_t __rbout = -1; 619 ptrdiff_t __rnout = -1; 620 ptrdiff_t __reout = -1; 621 if (__rhs.pbase() != nullptr) { 622 __rbout = __rhs.pbase() - __p; 623 __rnout = __rhs.pptr() - __p; 624 __reout = __rhs.epptr() - __p; 625 } 626 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 627 __p = const_cast<char_type*>(__str_.data()); 628 ptrdiff_t __lbinp = -1; 629 ptrdiff_t __lninp = -1; 630 ptrdiff_t __leinp = -1; 631 if (this->eback() != nullptr) { 632 __lbinp = this->eback() - __p; 633 __lninp = this->gptr() - __p; 634 __leinp = this->egptr() - __p; 635 } 636 ptrdiff_t __lbout = -1; 637 ptrdiff_t __lnout = -1; 638 ptrdiff_t __leout = -1; 639 if (this->pbase() != nullptr) { 640 __lbout = this->pbase() - __p; 641 __lnout = this->pptr() - __p; 642 __leout = this->epptr() - __p; 643 } 644 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 645 std::swap(__mode_, __rhs.__mode_); 646 __str_.swap(__rhs.__str_); 647 __p = const_cast<char_type*>(__str_.data()); 648 if (__rbinp != -1) 649 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 650 else 651 this->setg(nullptr, nullptr, nullptr); 652 if (__rbout != -1) { 653 this->setp(__p + __rbout, __p + __reout); 654 this->__pbump(__rnout); 655 } else 656 this->setp(nullptr, nullptr); 657 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 658 __p = const_cast<char_type*>(__rhs.__str_.data()); 659 if (__lbinp != -1) 660 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 661 else 662 __rhs.setg(nullptr, nullptr, nullptr); 663 if (__lbout != -1) { 664 __rhs.setp(__p + __lbout, __p + __leout); 665 __rhs.__pbump(__lnout); 666 } else 667 __rhs.setp(nullptr, nullptr); 668 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 669 locale __tl = __rhs.getloc(); 670 __rhs.pubimbue(this->getloc()); 671 this->pubimbue(__tl); 672} 673 674template <class _CharT, class _Traits, class _Allocator> 675inline _LIBCPP_HIDE_FROM_ABI void 676swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) 677#if _LIBCPP_STD_VER >= 20 678 noexcept(noexcept(__x.swap(__y))) 679#endif 680{ 681 __x.swap(__y); 682} 683 684#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 685template <class _CharT, class _Traits, class _Allocator> 686basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 687 if (__mode_ & ios_base::out) { 688 if (__hm_ < this->pptr()) 689 __hm_ = this->pptr(); 690 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 691 } else if (__mode_ & ios_base::in) 692 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 693 return string_type(__str_.get_allocator()); 694} 695#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 696 697template <class _CharT, class _Traits, class _Allocator> 698_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 699 __hm_ = nullptr; 700 char_type* __data = const_cast<char_type*>(__str_.data()); 701 typename string_type::size_type __sz = __str_.size(); 702 if (__mode_ & ios_base::in) { 703 __hm_ = __data + __sz; 704 this->setg(__data, __data, __hm_); 705 } 706 if (__mode_ & ios_base::out) { 707 __hm_ = __data + __sz; 708 __str_.resize(__str_.capacity()); 709 this->setp(__data, __data + __str_.size()); 710 if (__mode_ & (ios_base::app | ios_base::ate)) { 711 while (__sz > INT_MAX) { 712 this->pbump(INT_MAX); 713 __sz -= INT_MAX; 714 } 715 if (__sz > 0) 716 this->pbump(__sz); 717 } 718 } 719} 720 721#if _LIBCPP_STD_VER >= 20 722template <class _CharT, class _Traits, class _Allocator> 723_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits> 724basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept { 725 if (__mode_ & ios_base::out) { 726 if (__hm_ < this->pptr()) 727 __hm_ = this->pptr(); 728 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_); 729 } else if (__mode_ & ios_base::in) 730 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr()); 731 return basic_string_view<_CharT, _Traits>(); 732} 733#endif // _LIBCPP_STD_VER >= 20 734 735template <class _CharT, class _Traits, class _Allocator> 736typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 737basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() { 738 if (__hm_ < this->pptr()) 739 __hm_ = this->pptr(); 740 if (__mode_ & ios_base::in) { 741 if (this->egptr() < __hm_) 742 this->setg(this->eback(), this->gptr(), __hm_); 743 if (this->gptr() < this->egptr()) 744 return traits_type::to_int_type(*this->gptr()); 745 } 746 return traits_type::eof(); 747} 748 749template <class _CharT, class _Traits, class _Allocator> 750typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 751basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) { 752 if (__hm_ < this->pptr()) 753 __hm_ = this->pptr(); 754 if (this->eback() < this->gptr()) { 755 if (traits_type::eq_int_type(__c, traits_type::eof())) { 756 this->setg(this->eback(), this->gptr() - 1, __hm_); 757 return traits_type::not_eof(__c); 758 } 759 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) { 760 this->setg(this->eback(), this->gptr() - 1, __hm_); 761 *this->gptr() = traits_type::to_char_type(__c); 762 return __c; 763 } 764 } 765 return traits_type::eof(); 766} 767 768template <class _CharT, class _Traits, class _Allocator> 769typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 770basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) { 771 if (!traits_type::eq_int_type(__c, traits_type::eof())) { 772 ptrdiff_t __ninp = this->gptr() - this->eback(); 773 if (this->pptr() == this->epptr()) { 774 if (!(__mode_ & ios_base::out)) 775 return traits_type::eof(); 776#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 777 try { 778#endif // _LIBCPP_HAS_NO_EXCEPTIONS 779 ptrdiff_t __nout = this->pptr() - this->pbase(); 780 ptrdiff_t __hm = __hm_ - this->pbase(); 781 __str_.push_back(char_type()); 782 __str_.resize(__str_.capacity()); 783 char_type* __p = const_cast<char_type*>(__str_.data()); 784 this->setp(__p, __p + __str_.size()); 785 this->__pbump(__nout); 786 __hm_ = this->pbase() + __hm; 787#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 788 } catch (...) { 789 return traits_type::eof(); 790 } 791#endif // _LIBCPP_HAS_NO_EXCEPTIONS 792 } 793 __hm_ = std::max(this->pptr() + 1, __hm_); 794 if (__mode_ & ios_base::in) { 795 char_type* __p = const_cast<char_type*>(__str_.data()); 796 this->setg(__p, __p + __ninp, __hm_); 797 } 798 return this->sputc(traits_type::to_char_type(__c)); 799 } 800 return traits_type::not_eof(__c); 801} 802 803template <class _CharT, class _Traits, class _Allocator> 804typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff( 805 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) { 806 if (__hm_ < this->pptr()) 807 __hm_ = this->pptr(); 808 if ((__wch & (ios_base::in | ios_base::out)) == 0) 809 return pos_type(-1); 810 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur) 811 return pos_type(-1); 812 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 813 off_type __noff; 814 switch (__way) { 815 case ios_base::beg: 816 __noff = 0; 817 break; 818 case ios_base::cur: 819 if (__wch & ios_base::in) 820 __noff = this->gptr() - this->eback(); 821 else 822 __noff = this->pptr() - this->pbase(); 823 break; 824 case ios_base::end: 825 __noff = __hm; 826 break; 827 default: 828 return pos_type(-1); 829 } 830 __noff += __off; 831 if (__noff < 0 || __hm < __noff) 832 return pos_type(-1); 833 if (__noff != 0) { 834 if ((__wch & ios_base::in) && this->gptr() == nullptr) 835 return pos_type(-1); 836 if ((__wch & ios_base::out) && this->pptr() == nullptr) 837 return pos_type(-1); 838 } 839 if (__wch & ios_base::in) 840 this->setg(this->eback(), this->eback() + __noff, __hm_); 841 if (__wch & ios_base::out) { 842 this->setp(this->pbase(), this->epptr()); 843 this->__pbump(__noff); 844 } 845 return pos_type(__noff); 846} 847 848// Class template basic_istringstream [istringstream] 849 850template <class _CharT, class _Traits, class _Allocator> 851class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> { 852public: 853 typedef _CharT char_type; 854 typedef _Traits traits_type; 855 typedef typename traits_type::int_type int_type; 856 typedef typename traits_type::pos_type pos_type; 857 typedef typename traits_type::off_type off_type; 858 typedef _Allocator allocator_type; 859 860 typedef basic_string<char_type, traits_type, allocator_type> string_type; 861 862private: 863 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 864 865public: 866 // [istringstream.cons] Constructors: 867 _LIBCPP_HIDE_FROM_ABI basic_istringstream() : basic_istream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in) {} 868 869 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch) 870 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::in) {} 871 872 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in) 873 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::in) {} 874 875#if _LIBCPP_STD_VER >= 20 876 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a) 877 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {} 878 879 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in) 880 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {} 881 882 template <class _SAlloc> 883 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 884 : basic_istringstream(__s, ios_base::in, __a) {} 885 886 template <class _SAlloc> 887 _LIBCPP_HIDE_FROM_ABI basic_istringstream( 888 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 889 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {} 890 891 template <class _SAlloc> 892 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 893 ios_base::openmode __wch = ios_base::in) 894 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 895#endif // _LIBCPP_STD_VER >= 20 896 897#if _LIBCPP_STD_VER >= 26 898 899 template <class _Tp> 900 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 901 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const _Tp& __t, ios_base::openmode __which = ios_base::in) 902 : basic_istringstream(__t, __which, _Allocator()) {} 903 904 template <class _Tp> 905 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 906 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, const _Allocator& __a) 907 : basic_istringstream(__t, ios_base::in, __a) {} 908 909 template <class _Tp> 910 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 911 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 912 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::in, __a) {} 913 914#endif // _LIBCPP_STD_VER >= 26 915 916 basic_istringstream(const basic_istringstream&) = delete; 917 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs) 918 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 919 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 920 } 921 922 // [istringstream.assign] Assign and swap: 923 basic_istringstream& operator=(const basic_istringstream&) = delete; 924 basic_istringstream& operator=(basic_istringstream&& __rhs) { 925 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 926 __sb_ = std::move(__rhs.__sb_); 927 return *this; 928 } 929 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) { 930 basic_istream<char_type, traits_type>::swap(__rhs); 931 __sb_.swap(__rhs.__sb_); 932 } 933 934 // [istringstream.members] Member functions: 935 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 936 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 937 } 938 939#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 940 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 941#else 942 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 943 944 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 945#endif 946 947#if _LIBCPP_STD_VER >= 20 948 template <class _SAlloc> 949 requires __is_allocator<_SAlloc>::value 950 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 951 return __sb_.str(__sa); 952 } 953 954 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 955#endif // _LIBCPP_STD_VER >= 20 956 957 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 958 959#if _LIBCPP_STD_VER >= 20 960 template <class _SAlloc> 961 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 962 __sb_.str(__s); 963 } 964 965 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 966#endif // _LIBCPP_STD_VER >= 20 967 968#if _LIBCPP_STD_VER >= 26 969 template <class _Tp> 970 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 971 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 972 rdbuf()->str(__t); 973 } 974#endif // _LIBCPP_STD_VER >= 26 975}; 976 977template <class _CharT, class _Traits, class _Allocator> 978inline _LIBCPP_HIDE_FROM_ABI void 979swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) { 980 __x.swap(__y); 981} 982 983// Class template basic_ostringstream [ostringstream] 984 985template <class _CharT, class _Traits, class _Allocator> 986class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> { 987public: 988 typedef _CharT char_type; 989 typedef _Traits traits_type; 990 typedef typename traits_type::int_type int_type; 991 typedef typename traits_type::pos_type pos_type; 992 typedef typename traits_type::off_type off_type; 993 typedef _Allocator allocator_type; 994 995 typedef basic_string<char_type, traits_type, allocator_type> string_type; 996 997private: 998 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 999 1000public: 1001 // [ostringstream.cons] Constructors: 1002 _LIBCPP_HIDE_FROM_ABI basic_ostringstream() : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::out) {} 1003 1004 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch) 1005 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::out) {} 1006 1007 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out) 1008 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::out) {} 1009 1010#if _LIBCPP_STD_VER >= 20 1011 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a) 1012 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {} 1013 1014 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out) 1015 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {} 1016 1017 template <class _SAlloc> 1018 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1019 : basic_ostringstream(__s, ios_base::out, __a) {} 1020 1021 template <class _SAlloc> 1022 _LIBCPP_HIDE_FROM_ABI basic_ostringstream( 1023 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1024 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {} 1025 1026 template <class _SAlloc> 1027 requires(!is_same_v<_SAlloc, allocator_type>) 1028 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1029 ios_base::openmode __wch = ios_base::out) 1030 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1031#endif // _LIBCPP_STD_VER >= 20 1032 1033#if _LIBCPP_STD_VER >= 26 1034 1035 template <class _Tp> 1036 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1037 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const _Tp& __t, ios_base::openmode __which = ios_base::out) 1038 : basic_ostringstream(__t, __which | ios_base::out, _Allocator()) {} 1039 1040 template <class _Tp> 1041 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1042 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, const _Allocator& __a) 1043 : basic_ostringstream(__t, ios_base::out, __a) {} 1044 1045 template <class _Tp> 1046 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1047 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1048 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::out, __a) {} 1049 1050#endif // _LIBCPP_STD_VER >= 26 1051 1052 basic_ostringstream(const basic_ostringstream&) = delete; 1053 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs) 1054 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1055 basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); 1056 } 1057 1058 // [ostringstream.assign] Assign and swap: 1059 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 1060 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 1061 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 1062 __sb_ = std::move(__rhs.__sb_); 1063 return *this; 1064 } 1065 1066 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) { 1067 basic_ostream<char_type, traits_type>::swap(__rhs); 1068 __sb_.swap(__rhs.__sb_); 1069 } 1070 1071 // [ostringstream.members] Member functions: 1072 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1073 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1074 } 1075 1076#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1077 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1078#else 1079 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1080 1081 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1082#endif 1083 1084#if _LIBCPP_STD_VER >= 20 1085 template <class _SAlloc> 1086 requires __is_allocator<_SAlloc>::value 1087 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1088 return __sb_.str(__sa); 1089 } 1090 1091 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1092#endif // _LIBCPP_STD_VER >= 20 1093 1094 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1095 1096#if _LIBCPP_STD_VER >= 20 1097 template <class _SAlloc> 1098 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1099 __sb_.str(__s); 1100 } 1101 1102 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1103#endif // _LIBCPP_STD_VER >= 20 1104 1105#if _LIBCPP_STD_VER >= 26 1106 template <class _Tp> 1107 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1108 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1109 rdbuf()->str(__t); 1110 } 1111#endif // _LIBCPP_STD_VER >= 26 1112}; 1113 1114template <class _CharT, class _Traits, class _Allocator> 1115inline _LIBCPP_HIDE_FROM_ABI void 1116swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) { 1117 __x.swap(__y); 1118} 1119 1120// Class template basic_stringstream [stringstream] 1121 1122template <class _CharT, class _Traits, class _Allocator> 1123class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> { 1124public: 1125 typedef _CharT char_type; 1126 typedef _Traits traits_type; 1127 typedef typename traits_type::int_type int_type; 1128 typedef typename traits_type::pos_type pos_type; 1129 typedef typename traits_type::off_type off_type; 1130 typedef _Allocator allocator_type; 1131 1132 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1133 1134private: 1135 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1136 1137public: 1138 // [stringstream.cons] constructors 1139 _LIBCPP_HIDE_FROM_ABI basic_stringstream() 1140 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in | ios_base::out) {} 1141 1142 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch) 1143 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__wch) {} 1144 1145 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s, 1146 ios_base::openmode __wch = ios_base::in | ios_base::out) 1147 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch) {} 1148 1149#if _LIBCPP_STD_VER >= 20 1150 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a) 1151 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {} 1152 1153 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s, 1154 ios_base::openmode __wch = ios_base::out | ios_base::in) 1155 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {} 1156 1157 template <class _SAlloc> 1158 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1159 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {} 1160 1161 template <class _SAlloc> 1162 _LIBCPP_HIDE_FROM_ABI 1163 basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1164 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {} 1165 1166 template <class _SAlloc> 1167 requires(!is_same_v<_SAlloc, allocator_type>) 1168 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1169 ios_base::openmode __wch = ios_base::out | ios_base::in) 1170 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1171#endif // _LIBCPP_STD_VER >= 20 1172 1173#if _LIBCPP_STD_VER >= 26 1174 1175 template <class _Tp> 1176 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1177 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const _Tp& __t, 1178 ios_base::openmode __which = ios_base::out | ios_base::in) 1179 : basic_stringstream(__t, __which, _Allocator()) {} 1180 1181 template <class _Tp> 1182 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1183 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, const _Allocator& __a) 1184 : basic_stringstream(__t, ios_base::out | ios_base::in, __a) {} 1185 1186 template <class _Tp> 1187 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1188 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1189 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which, __a) {} 1190 1191#endif // _LIBCPP_STD_VER >= 26 1192 1193 basic_stringstream(const basic_stringstream&) = delete; 1194 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs) 1195 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1196 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 1197 } 1198 1199 // [stringstream.assign] Assign and swap: 1200 basic_stringstream& operator=(const basic_stringstream&) = delete; 1201 basic_stringstream& operator=(basic_stringstream&& __rhs) { 1202 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 1203 __sb_ = std::move(__rhs.__sb_); 1204 return *this; 1205 } 1206 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) { 1207 basic_iostream<char_type, traits_type>::swap(__rhs); 1208 __sb_.swap(__rhs.__sb_); 1209 } 1210 1211 // [stringstream.members] Member functions: 1212 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1213 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1214 } 1215 1216#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1217 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1218#else 1219 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1220 1221 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1222#endif 1223 1224#if _LIBCPP_STD_VER >= 20 1225 template <class _SAlloc> 1226 requires __is_allocator<_SAlloc>::value 1227 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1228 return __sb_.str(__sa); 1229 } 1230 1231 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1232#endif // _LIBCPP_STD_VER >= 20 1233 1234 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1235 1236#if _LIBCPP_STD_VER >= 20 1237 template <class _SAlloc> 1238 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1239 __sb_.str(__s); 1240 } 1241 1242 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1243#endif // _LIBCPP_STD_VER >= 20 1244 1245#if _LIBCPP_STD_VER >= 26 1246 template <class _Tp> 1247 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1248 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1249 rdbuf()->str(__t); 1250 } 1251#endif // _LIBCPP_STD_VER >= 26 1252}; 1253 1254template <class _CharT, class _Traits, class _Allocator> 1255inline _LIBCPP_HIDE_FROM_ABI void 1256swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) { 1257 __x.swap(__y); 1258} 1259 1260#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 1261extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 1262extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 1263extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 1264extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 1265#endif 1266 1267_LIBCPP_END_NAMESPACE_STD 1268 1269_LIBCPP_POP_MACROS 1270 1271#if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 1272# include <ostream> 1273# include <type_traits> 1274#endif 1275 1276#endif // _LIBCPP_SSTREAM 1277