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 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't 359 __init_buf_ptrs(); 360 } 361 362 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) { 363 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't 364 __init_buf_ptrs(); 365 } 366 367 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s, 368 ios_base::openmode __wch = ios_base::in | ios_base::out) 369 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) { 370 str(__s); 371 } 372 373#if _LIBCPP_STD_VER >= 20 374 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a) 375 : basic_stringbuf(ios_base::in | ios_base::out, __a) {} 376 377 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a) 378 : __str_(__a), __hm_(nullptr), __mode_(__wch) { 379 __init_buf_ptrs(); 380 } 381 382 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s, 383 ios_base::openmode __wch = ios_base::in | ios_base::out) 384 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) { 385 __init_buf_ptrs(); 386 } 387 388 template <class _SAlloc> 389 _LIBCPP_HIDE_FROM_ABI 390 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a) 391 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {} 392 393 template <class _SAlloc> 394 _LIBCPP_HIDE_FROM_ABI basic_stringbuf( 395 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a) 396 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) { 397 __init_buf_ptrs(); 398 } 399 400 template <class _SAlloc> 401 requires(!is_same_v<_SAlloc, allocator_type>) 402 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, 403 ios_base::openmode __wch = ios_base::in | ios_base::out) 404 : __str_(__s), __hm_(nullptr), __mode_(__wch) { 405 __init_buf_ptrs(); 406 } 407#endif // _LIBCPP_STD_VER >= 20 408 409#if _LIBCPP_STD_VER >= 26 410 411 template <class _Tp> 412 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 413 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const _Tp& __t, 414 ios_base::openmode __which = ios_base::in | ios_base::out) 415 : basic_stringbuf(__t, __which, _Allocator()) {} 416 417 template <class _Tp> 418 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 419 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, const _Allocator& __a) 420 : basic_stringbuf(__t, ios_base::in | ios_base::out, __a) {} 421 422 template <class _Tp> 423 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 424 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 425 : __hm_(nullptr), __mode_(__which) { 426 basic_string_view<_CharT, _Traits> __sv = __t; 427 __str_ = string_type(__sv, __a); 428 __init_buf_ptrs(); 429 } 430 431#endif // _LIBCPP_STD_VER >= 26 432 433 basic_stringbuf(const basic_stringbuf&) = delete; 434 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 435 436#if _LIBCPP_STD_VER >= 20 437 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a) 438 : basic_stringbuf(__rhs.__mode_, __a) { 439 __move_init(std::move(__rhs)); 440 } 441#endif 442 443 // [stringbuf.assign] Assign and swap: 444 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 445 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 446 void swap(basic_stringbuf& __rhs) 447#if _LIBCPP_STD_VER >= 20 448 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 449 allocator_traits<allocator_type>::is_always_equal::value) 450#endif 451 ; 452 453 // [stringbuf.members] Member functions: 454 455#if _LIBCPP_STD_VER >= 20 456 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); } 457#endif 458 459#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 460 string_type str() const; 461#else 462 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return str(__str_.get_allocator()); } 463 464 _LIBCPP_HIDE_FROM_ABI string_type str() && { 465 const basic_string_view<_CharT, _Traits> __view = view(); 466 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data(); 467 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator()); 468 // But we need something that works in C++20 also. 469 string_type __result(std::move(__str_), __str_.get_allocator()); 470 __result.resize(__pos + __view.size()); 471 __result.erase(0, __pos); 472 __init_buf_ptrs(); 473 return __result; 474 } 475#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 476 477#if _LIBCPP_STD_VER >= 20 478 template <class _SAlloc> 479 requires __is_allocator<_SAlloc>::value 480 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 481 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa); 482 } 483 484 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept; 485#endif // _LIBCPP_STD_VER >= 20 486 487 void str(const string_type& __s) { 488 __str_ = __s; 489 __init_buf_ptrs(); 490 } 491 492#if _LIBCPP_STD_VER >= 20 493 template <class _SAlloc> 494 requires(!is_same_v<_SAlloc, allocator_type>) 495 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 496 __str_ = __s; 497 __init_buf_ptrs(); 498 } 499 500 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { 501 __str_ = std::move(__s); 502 __init_buf_ptrs(); 503 } 504#endif // _LIBCPP_STD_VER >= 20 505 506#if _LIBCPP_STD_VER >= 26 507 508 template <class _Tp> 509 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 510 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 511 basic_string_view<_CharT, _Traits> __sv = __t; 512 __str_ = __sv; 513 __init_buf_ptrs(); 514 } 515 516#endif // _LIBCPP_STD_VER >= 26 517 518protected: 519 // [stringbuf.virtuals] Overridden virtual functions: 520 int_type underflow() override; 521 int_type pbackfail(int_type __c = traits_type::eof()) override; 522 int_type overflow(int_type __c = traits_type::eof()) override; 523 pos_type 524 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override; 525 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 526 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override { 527 return seekoff(__sp, ios_base::beg, __wch); 528 } 529}; 530 531template <class _CharT, class _Traits, class _Allocator> 532_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 533 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 534 ptrdiff_t __binp = -1; 535 ptrdiff_t __ninp = -1; 536 ptrdiff_t __einp = -1; 537 if (__rhs.eback() != nullptr) { 538 __binp = __rhs.eback() - __p; 539 __ninp = __rhs.gptr() - __p; 540 __einp = __rhs.egptr() - __p; 541 } 542 ptrdiff_t __bout = -1; 543 ptrdiff_t __nout = -1; 544 ptrdiff_t __eout = -1; 545 if (__rhs.pbase() != nullptr) { 546 __bout = __rhs.pbase() - __p; 547 __nout = __rhs.pptr() - __p; 548 __eout = __rhs.epptr() - __p; 549 } 550 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 551 __str_ = std::move(__rhs.__str_); 552 __p = const_cast<char_type*>(__str_.data()); 553 if (__binp != -1) 554 this->setg(__p + __binp, __p + __ninp, __p + __einp); 555 if (__bout != -1) { 556 this->setp(__p + __bout, __p + __eout); 557 this->__pbump(__nout); 558 } 559 __hm_ = __hm == -1 ? nullptr : __p + __hm; 560 __p = const_cast<char_type*>(__rhs.__str_.data()); 561 __rhs.setg(__p, __p, __p); 562 __rhs.setp(__p, __p); 563 __rhs.__hm_ = __p; 564 this->pubimbue(__rhs.getloc()); 565} 566 567template <class _CharT, class _Traits, class _Allocator> 568basic_stringbuf<_CharT, _Traits, _Allocator>& 569basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) { 570 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 571 ptrdiff_t __binp = -1; 572 ptrdiff_t __ninp = -1; 573 ptrdiff_t __einp = -1; 574 if (__rhs.eback() != nullptr) { 575 __binp = __rhs.eback() - __p; 576 __ninp = __rhs.gptr() - __p; 577 __einp = __rhs.egptr() - __p; 578 } 579 ptrdiff_t __bout = -1; 580 ptrdiff_t __nout = -1; 581 ptrdiff_t __eout = -1; 582 if (__rhs.pbase() != nullptr) { 583 __bout = __rhs.pbase() - __p; 584 __nout = __rhs.pptr() - __p; 585 __eout = __rhs.epptr() - __p; 586 } 587 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 588 __str_ = std::move(__rhs.__str_); 589 __p = const_cast<char_type*>(__str_.data()); 590 if (__binp != -1) 591 this->setg(__p + __binp, __p + __ninp, __p + __einp); 592 else 593 this->setg(nullptr, nullptr, nullptr); 594 if (__bout != -1) { 595 this->setp(__p + __bout, __p + __eout); 596 this->__pbump(__nout); 597 } else 598 this->setp(nullptr, nullptr); 599 600 __hm_ = __hm == -1 ? nullptr : __p + __hm; 601 __mode_ = __rhs.__mode_; 602 __p = const_cast<char_type*>(__rhs.__str_.data()); 603 __rhs.setg(__p, __p, __p); 604 __rhs.setp(__p, __p); 605 __rhs.__hm_ = __p; 606 this->pubimbue(__rhs.getloc()); 607 return *this; 608} 609 610template <class _CharT, class _Traits, class _Allocator> 611void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) 612#if _LIBCPP_STD_VER >= 20 613 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value || 614 allocator_traits<_Allocator>::is_always_equal::value) 615#endif 616{ 617 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 618 ptrdiff_t __rbinp = -1; 619 ptrdiff_t __rninp = -1; 620 ptrdiff_t __reinp = -1; 621 if (__rhs.eback() != nullptr) { 622 __rbinp = __rhs.eback() - __p; 623 __rninp = __rhs.gptr() - __p; 624 __reinp = __rhs.egptr() - __p; 625 } 626 ptrdiff_t __rbout = -1; 627 ptrdiff_t __rnout = -1; 628 ptrdiff_t __reout = -1; 629 if (__rhs.pbase() != nullptr) { 630 __rbout = __rhs.pbase() - __p; 631 __rnout = __rhs.pptr() - __p; 632 __reout = __rhs.epptr() - __p; 633 } 634 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 635 __p = const_cast<char_type*>(__str_.data()); 636 ptrdiff_t __lbinp = -1; 637 ptrdiff_t __lninp = -1; 638 ptrdiff_t __leinp = -1; 639 if (this->eback() != nullptr) { 640 __lbinp = this->eback() - __p; 641 __lninp = this->gptr() - __p; 642 __leinp = this->egptr() - __p; 643 } 644 ptrdiff_t __lbout = -1; 645 ptrdiff_t __lnout = -1; 646 ptrdiff_t __leout = -1; 647 if (this->pbase() != nullptr) { 648 __lbout = this->pbase() - __p; 649 __lnout = this->pptr() - __p; 650 __leout = this->epptr() - __p; 651 } 652 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 653 std::swap(__mode_, __rhs.__mode_); 654 __str_.swap(__rhs.__str_); 655 __p = const_cast<char_type*>(__str_.data()); 656 if (__rbinp != -1) 657 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 658 else 659 this->setg(nullptr, nullptr, nullptr); 660 if (__rbout != -1) { 661 this->setp(__p + __rbout, __p + __reout); 662 this->__pbump(__rnout); 663 } else 664 this->setp(nullptr, nullptr); 665 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 666 __p = const_cast<char_type*>(__rhs.__str_.data()); 667 if (__lbinp != -1) 668 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 669 else 670 __rhs.setg(nullptr, nullptr, nullptr); 671 if (__lbout != -1) { 672 __rhs.setp(__p + __lbout, __p + __leout); 673 __rhs.__pbump(__lnout); 674 } else 675 __rhs.setp(nullptr, nullptr); 676 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 677 locale __tl = __rhs.getloc(); 678 __rhs.pubimbue(this->getloc()); 679 this->pubimbue(__tl); 680} 681 682template <class _CharT, class _Traits, class _Allocator> 683inline _LIBCPP_HIDE_FROM_ABI void 684swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) 685#if _LIBCPP_STD_VER >= 20 686 noexcept(noexcept(__x.swap(__y))) 687#endif 688{ 689 __x.swap(__y); 690} 691 692#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 693template <class _CharT, class _Traits, class _Allocator> 694basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 695 if (__mode_ & ios_base::out) { 696 if (__hm_ < this->pptr()) 697 __hm_ = this->pptr(); 698 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 699 } else if (__mode_ & ios_base::in) 700 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 701 return string_type(__str_.get_allocator()); 702} 703#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 704 705template <class _CharT, class _Traits, class _Allocator> 706_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 707 __hm_ = nullptr; 708 char_type* __data = const_cast<char_type*>(__str_.data()); 709 typename string_type::size_type __sz = __str_.size(); 710 if (__mode_ & ios_base::in) { 711 __hm_ = __data + __sz; 712 this->setg(__data, __data, __hm_); 713 } 714 if (__mode_ & ios_base::out) { 715 __hm_ = __data + __sz; 716 __str_.resize(__str_.capacity()); 717 this->setp(__data, __data + __str_.size()); 718 if (__mode_ & (ios_base::app | ios_base::ate)) { 719 while (__sz > INT_MAX) { 720 this->pbump(INT_MAX); 721 __sz -= INT_MAX; 722 } 723 if (__sz > 0) 724 this->pbump(__sz); 725 } 726 } 727} 728 729#if _LIBCPP_STD_VER >= 20 730template <class _CharT, class _Traits, class _Allocator> 731_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits> 732basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept { 733 if (__mode_ & ios_base::out) { 734 if (__hm_ < this->pptr()) 735 __hm_ = this->pptr(); 736 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_); 737 } else if (__mode_ & ios_base::in) 738 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr()); 739 return basic_string_view<_CharT, _Traits>(); 740} 741#endif // _LIBCPP_STD_VER >= 20 742 743template <class _CharT, class _Traits, class _Allocator> 744typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 745basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() { 746 if (__hm_ < this->pptr()) 747 __hm_ = this->pptr(); 748 if (__mode_ & ios_base::in) { 749 if (this->egptr() < __hm_) 750 this->setg(this->eback(), this->gptr(), __hm_); 751 if (this->gptr() < this->egptr()) 752 return traits_type::to_int_type(*this->gptr()); 753 } 754 return traits_type::eof(); 755} 756 757template <class _CharT, class _Traits, class _Allocator> 758typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 759basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) { 760 if (__hm_ < this->pptr()) 761 __hm_ = this->pptr(); 762 if (this->eback() < this->gptr()) { 763 if (traits_type::eq_int_type(__c, traits_type::eof())) { 764 this->setg(this->eback(), this->gptr() - 1, __hm_); 765 return traits_type::not_eof(__c); 766 } 767 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) { 768 this->setg(this->eback(), this->gptr() - 1, __hm_); 769 *this->gptr() = traits_type::to_char_type(__c); 770 return __c; 771 } 772 } 773 return traits_type::eof(); 774} 775 776template <class _CharT, class _Traits, class _Allocator> 777typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 778basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) { 779 if (!traits_type::eq_int_type(__c, traits_type::eof())) { 780 ptrdiff_t __ninp = this->gptr() - this->eback(); 781 if (this->pptr() == this->epptr()) { 782 if (!(__mode_ & ios_base::out)) 783 return traits_type::eof(); 784#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 785 try { 786#endif // _LIBCPP_HAS_NO_EXCEPTIONS 787 ptrdiff_t __nout = this->pptr() - this->pbase(); 788 ptrdiff_t __hm = __hm_ - this->pbase(); 789 __str_.push_back(char_type()); 790 __str_.resize(__str_.capacity()); 791 char_type* __p = const_cast<char_type*>(__str_.data()); 792 this->setp(__p, __p + __str_.size()); 793 this->__pbump(__nout); 794 __hm_ = this->pbase() + __hm; 795#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 796 } catch (...) { 797 return traits_type::eof(); 798 } 799#endif // _LIBCPP_HAS_NO_EXCEPTIONS 800 } 801 __hm_ = std::max(this->pptr() + 1, __hm_); 802 if (__mode_ & ios_base::in) { 803 char_type* __p = const_cast<char_type*>(__str_.data()); 804 this->setg(__p, __p + __ninp, __hm_); 805 } 806 return this->sputc(traits_type::to_char_type(__c)); 807 } 808 return traits_type::not_eof(__c); 809} 810 811template <class _CharT, class _Traits, class _Allocator> 812typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff( 813 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) { 814 if (__hm_ < this->pptr()) 815 __hm_ = this->pptr(); 816 if ((__wch & (ios_base::in | ios_base::out)) == 0) 817 return pos_type(-1); 818 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur) 819 return pos_type(-1); 820 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 821 off_type __noff; 822 switch (__way) { 823 case ios_base::beg: 824 __noff = 0; 825 break; 826 case ios_base::cur: 827 if (__wch & ios_base::in) 828 __noff = this->gptr() - this->eback(); 829 else 830 __noff = this->pptr() - this->pbase(); 831 break; 832 case ios_base::end: 833 __noff = __hm; 834 break; 835 default: 836 return pos_type(-1); 837 } 838 __noff += __off; 839 if (__noff < 0 || __hm < __noff) 840 return pos_type(-1); 841 if (__noff != 0) { 842 if ((__wch & ios_base::in) && this->gptr() == nullptr) 843 return pos_type(-1); 844 if ((__wch & ios_base::out) && this->pptr() == nullptr) 845 return pos_type(-1); 846 } 847 if (__wch & ios_base::in) 848 this->setg(this->eback(), this->eback() + __noff, __hm_); 849 if (__wch & ios_base::out) { 850 this->setp(this->pbase(), this->epptr()); 851 this->__pbump(__noff); 852 } 853 return pos_type(__noff); 854} 855 856// Class template basic_istringstream [istringstream] 857 858template <class _CharT, class _Traits, class _Allocator> 859class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> { 860public: 861 typedef _CharT char_type; 862 typedef _Traits traits_type; 863 typedef typename traits_type::int_type int_type; 864 typedef typename traits_type::pos_type pos_type; 865 typedef typename traits_type::off_type off_type; 866 typedef _Allocator allocator_type; 867 868 typedef basic_string<char_type, traits_type, allocator_type> string_type; 869 870private: 871 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 872 873public: 874 // [istringstream.cons] Constructors: 875 _LIBCPP_HIDE_FROM_ABI basic_istringstream() 876 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in) {} 877 878 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch) 879 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in) {} 880 881 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in) 882 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 883 884#if _LIBCPP_STD_VER >= 20 885 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a) 886 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {} 887 888 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in) 889 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {} 890 891 template <class _SAlloc> 892 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 893 : basic_istringstream(__s, ios_base::in, __a) {} 894 895 template <class _SAlloc> 896 _LIBCPP_HIDE_FROM_ABI basic_istringstream( 897 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 898 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {} 899 900 template <class _SAlloc> 901 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 902 ios_base::openmode __wch = ios_base::in) 903 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 904#endif // _LIBCPP_STD_VER >= 20 905 906#if _LIBCPP_STD_VER >= 26 907 908 template <class _Tp> 909 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 910 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const _Tp& __t, ios_base::openmode __which = ios_base::in) 911 : basic_istringstream(__t, __which, _Allocator()) {} 912 913 template <class _Tp> 914 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 915 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, const _Allocator& __a) 916 : basic_istringstream(__t, ios_base::in, __a) {} 917 918 template <class _Tp> 919 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 920 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 921 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::in, __a) {} 922 923#endif // _LIBCPP_STD_VER >= 26 924 925 basic_istringstream(const basic_istringstream&) = delete; 926 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs) 927 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 928 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_)); 929 } 930 931 // [istringstream.assign] Assign and swap: 932 basic_istringstream& operator=(const basic_istringstream&) = delete; 933 basic_istringstream& operator=(basic_istringstream&& __rhs) { 934 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 935 __sb_ = std::move(__rhs.__sb_); 936 return *this; 937 } 938 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) { 939 basic_istream<char_type, traits_type>::swap(__rhs); 940 __sb_.swap(__rhs.__sb_); 941 } 942 943 // [istringstream.members] Member functions: 944 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 945 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_)); 946 } 947 948#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 949 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 950#else 951 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 952 953 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 954#endif 955 956#if _LIBCPP_STD_VER >= 20 957 template <class _SAlloc> 958 requires __is_allocator<_SAlloc>::value 959 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 960 return __sb_.str(__sa); 961 } 962 963 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 964#endif // _LIBCPP_STD_VER >= 20 965 966 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 967 968#if _LIBCPP_STD_VER >= 20 969 template <class _SAlloc> 970 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 971 __sb_.str(__s); 972 } 973 974 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 975#endif // _LIBCPP_STD_VER >= 20 976 977#if _LIBCPP_STD_VER >= 26 978 template <class _Tp> 979 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 980 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 981 rdbuf()->str(__t); 982 } 983#endif // _LIBCPP_STD_VER >= 26 984}; 985 986template <class _CharT, class _Traits, class _Allocator> 987inline _LIBCPP_HIDE_FROM_ABI void 988swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) { 989 __x.swap(__y); 990} 991 992// Class template basic_ostringstream [ostringstream] 993 994template <class _CharT, class _Traits, class _Allocator> 995class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> { 996public: 997 typedef _CharT char_type; 998 typedef _Traits traits_type; 999 typedef typename traits_type::int_type int_type; 1000 typedef typename traits_type::pos_type pos_type; 1001 typedef typename traits_type::off_type off_type; 1002 typedef _Allocator allocator_type; 1003 1004 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1005 1006private: 1007 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1008 1009public: 1010 // [ostringstream.cons] Constructors: 1011 _LIBCPP_HIDE_FROM_ABI basic_ostringstream() 1012 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::out) {} 1013 1014 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch) 1015 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out) {} 1016 1017 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out) 1018 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1019 1020#if _LIBCPP_STD_VER >= 20 1021 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a) 1022 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {} 1023 1024 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out) 1025 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {} 1026 1027 template <class _SAlloc> 1028 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1029 : basic_ostringstream(__s, ios_base::out, __a) {} 1030 1031 template <class _SAlloc> 1032 _LIBCPP_HIDE_FROM_ABI basic_ostringstream( 1033 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1034 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {} 1035 1036 template <class _SAlloc> 1037 requires(!is_same_v<_SAlloc, allocator_type>) 1038 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1039 ios_base::openmode __wch = ios_base::out) 1040 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1041#endif // _LIBCPP_STD_VER >= 20 1042 1043#if _LIBCPP_STD_VER >= 26 1044 1045 template <class _Tp> 1046 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1047 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const _Tp& __t, ios_base::openmode __which = ios_base::out) 1048 : basic_ostringstream(__t, __which | ios_base::out, _Allocator()) {} 1049 1050 template <class _Tp> 1051 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1052 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, const _Allocator& __a) 1053 : basic_ostringstream(__t, ios_base::out, __a) {} 1054 1055 template <class _Tp> 1056 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1057 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1058 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::out, __a) {} 1059 1060#endif // _LIBCPP_STD_VER >= 26 1061 1062 basic_ostringstream(const basic_ostringstream&) = delete; 1063 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs) 1064 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1065 basic_ostream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_)); 1066 } 1067 1068 // [ostringstream.assign] Assign and swap: 1069 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 1070 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 1071 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 1072 __sb_ = std::move(__rhs.__sb_); 1073 return *this; 1074 } 1075 1076 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) { 1077 basic_ostream<char_type, traits_type>::swap(__rhs); 1078 __sb_.swap(__rhs.__sb_); 1079 } 1080 1081 // [ostringstream.members] Member functions: 1082 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1083 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_)); 1084 } 1085 1086#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1087 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1088#else 1089 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1090 1091 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1092#endif 1093 1094#if _LIBCPP_STD_VER >= 20 1095 template <class _SAlloc> 1096 requires __is_allocator<_SAlloc>::value 1097 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1098 return __sb_.str(__sa); 1099 } 1100 1101 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1102#endif // _LIBCPP_STD_VER >= 20 1103 1104 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1105 1106#if _LIBCPP_STD_VER >= 20 1107 template <class _SAlloc> 1108 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1109 __sb_.str(__s); 1110 } 1111 1112 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1113#endif // _LIBCPP_STD_VER >= 20 1114 1115#if _LIBCPP_STD_VER >= 26 1116 template <class _Tp> 1117 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1118 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1119 rdbuf()->str(__t); 1120 } 1121#endif // _LIBCPP_STD_VER >= 26 1122}; 1123 1124template <class _CharT, class _Traits, class _Allocator> 1125inline _LIBCPP_HIDE_FROM_ABI void 1126swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) { 1127 __x.swap(__y); 1128} 1129 1130// Class template basic_stringstream [stringstream] 1131 1132template <class _CharT, class _Traits, class _Allocator> 1133class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> { 1134public: 1135 typedef _CharT char_type; 1136 typedef _Traits traits_type; 1137 typedef typename traits_type::int_type int_type; 1138 typedef typename traits_type::pos_type pos_type; 1139 typedef typename traits_type::off_type off_type; 1140 typedef _Allocator allocator_type; 1141 1142 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1143 1144private: 1145 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1146 1147public: 1148 // [stringstream.cons] constructors 1149 _LIBCPP_HIDE_FROM_ABI basic_stringstream() 1150 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in | ios_base::out) {} 1151 1152 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch) 1153 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch) {} 1154 1155 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s, 1156 ios_base::openmode __wch = ios_base::in | ios_base::out) 1157 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1158 1159#if _LIBCPP_STD_VER >= 20 1160 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a) 1161 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {} 1162 1163 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s, 1164 ios_base::openmode __wch = ios_base::out | ios_base::in) 1165 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {} 1166 1167 template <class _SAlloc> 1168 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1169 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {} 1170 1171 template <class _SAlloc> 1172 _LIBCPP_HIDE_FROM_ABI 1173 basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1174 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {} 1175 1176 template <class _SAlloc> 1177 requires(!is_same_v<_SAlloc, allocator_type>) 1178 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1179 ios_base::openmode __wch = ios_base::out | ios_base::in) 1180 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1181#endif // _LIBCPP_STD_VER >= 20 1182 1183#if _LIBCPP_STD_VER >= 26 1184 1185 template <class _Tp> 1186 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1187 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const _Tp& __t, 1188 ios_base::openmode __which = ios_base::out | ios_base::in) 1189 : basic_stringstream(__t, __which, _Allocator()) {} 1190 1191 template <class _Tp> 1192 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1193 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, const _Allocator& __a) 1194 : basic_stringstream(__t, ios_base::out | ios_base::in, __a) {} 1195 1196 template <class _Tp> 1197 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1198 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1199 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which, __a) {} 1200 1201#endif // _LIBCPP_STD_VER >= 26 1202 1203 basic_stringstream(const basic_stringstream&) = delete; 1204 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs) 1205 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1206 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_)); 1207 } 1208 1209 // [stringstream.assign] Assign and swap: 1210 basic_stringstream& operator=(const basic_stringstream&) = delete; 1211 basic_stringstream& operator=(basic_stringstream&& __rhs) { 1212 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 1213 __sb_ = std::move(__rhs.__sb_); 1214 return *this; 1215 } 1216 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) { 1217 basic_iostream<char_type, traits_type>::swap(__rhs); 1218 __sb_.swap(__rhs.__sb_); 1219 } 1220 1221 // [stringstream.members] Member functions: 1222 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1223 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_)); 1224 } 1225 1226#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1227 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1228#else 1229 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1230 1231 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1232#endif 1233 1234#if _LIBCPP_STD_VER >= 20 1235 template <class _SAlloc> 1236 requires __is_allocator<_SAlloc>::value 1237 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1238 return __sb_.str(__sa); 1239 } 1240 1241 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1242#endif // _LIBCPP_STD_VER >= 20 1243 1244 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1245 1246#if _LIBCPP_STD_VER >= 20 1247 template <class _SAlloc> 1248 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1249 __sb_.str(__s); 1250 } 1251 1252 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1253#endif // _LIBCPP_STD_VER >= 20 1254 1255#if _LIBCPP_STD_VER >= 26 1256 template <class _Tp> 1257 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1258 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1259 rdbuf()->str(__t); 1260 } 1261#endif // _LIBCPP_STD_VER >= 26 1262}; 1263 1264template <class _CharT, class _Traits, class _Allocator> 1265inline _LIBCPP_HIDE_FROM_ABI void 1266swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) { 1267 __x.swap(__y); 1268} 1269 1270#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 1271extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 1272extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 1273extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 1274extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 1275#endif 1276 1277_LIBCPP_END_NAMESPACE_STD 1278 1279_LIBCPP_POP_MACROS 1280 1281#if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 1282# include <ostream> 1283# include <type_traits> 1284#endif 1285 1286#endif // _LIBCPP_SSTREAM 1287