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 basic_stringbuf(basic_stringbuf&& rhs); 52 basic_stringbuf(basic_stringbuf&& rhs, const allocator_type& a); // C++20 53 54 // [stringbuf.assign] Assign and swap: 55 basic_stringbuf& operator=(basic_stringbuf&& rhs); 56 void swap(basic_stringbuf& rhs) noexcept(see below); // conditionally noexcept since C++20 57 58 // [stringbuf.members] Member functions: 59 allocator_type get_allocator() const noexcept; // C++20 60 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 61 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 62 template <class SAlloc> 63 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 64 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 65 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 66 void str(const basic_string<char_type, traits_type, allocator_type>& s); 67 template <class SAlloc> 68 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 69 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 70 71protected: 72 // [stringbuf.virtuals] Overridden virtual functions: 73 virtual int_type underflow(); 74 virtual int_type pbackfail(int_type c = traits_type::eof()); 75 virtual int_type overflow (int_type c = traits_type::eof()); 76 virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize); 77 virtual pos_type seekoff(off_type off, ios_base::seekdir way, 78 ios_base::openmode which = ios_base::in | ios_base::out); 79 virtual pos_type seekpos(pos_type sp, 80 ios_base::openmode which = ios_base::in | ios_base::out); 81}; 82 83// [stringbuf.assign] non member swap 84template <class charT, class traits, class Allocator> 85void swap(basic_stringbuf<charT, traits, Allocator>& x, 86 basic_stringbuf<charT, traits, Allocator>& y); // conditionally noexcept since C++20 87 88typedef basic_stringbuf<char> stringbuf; 89typedef basic_stringbuf<wchar_t> wstringbuf; 90 91// Class template basic_istringstream [istringstream] 92template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 93class basic_istringstream 94 : public basic_istream<charT, traits> 95{ 96public: 97 typedef charT char_type; 98 typedef traits traits_type; 99 typedef typename traits_type::int_type int_type; 100 typedef typename traits_type::pos_type pos_type; 101 typedef typename traits_type::off_type off_type; 102 typedef Allocator allocator_type; 103 104 // [istringstream.cons] Constructors: 105 explicit basic_istringstream(ios_base::openmode which = ios_base::in); // before C++20 106 basic_istringstream() : basic_istringstream(ios_base::in) {} // C++20 107 explicit basic_istringstream(ios_base::openmode which); // C++20 108 explicit basic_istringstream(const basic_string<char_type, traits_type, allocator_type>& s, 109 ios_base::openmode which = ios_base::in); 110 basic_istringstream(ios_base::openmode which, const allocator_type& a); // C++20 111 explicit basic_istringstream(basic_string<char_type, traits_type, allocator_type>&& s, 112 ios_base::openmode which = ios_base::in); // C++20 113 template <class SAlloc> 114 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 115 : basic_istringstream(s, ios_base::in, a) {} // C++20 116 template <class SAlloc> 117 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 118 ios_base::openmode which, const allocator_type& a); // C++20 119 template <class SAlloc> 120 explicit basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 121 ios_base::openmode which = ios_base::in); // C++20 122 basic_istringstream(basic_istringstream&& rhs); 123 124 // [istringstream.assign] Assign and swap: 125 basic_istringstream& operator=(basic_istringstream&& rhs); 126 void swap(basic_istringstream& rhs); 127 128 // [istringstream.members] Member functions: 129 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 130 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 131 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 132 template <class SAlloc> 133 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 134 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 135 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 136 void str(const basic_string<char_type, traits_type, allocator_type>& s); 137 template <class SAlloc> 138 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 139 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 140}; 141 142template <class charT, class traits, class Allocator> 143void swap(basic_istringstream<charT, traits, Allocator>& x, 144 basic_istringstream<charT, traits, Allocator>& y); 145 146typedef basic_istringstream<char> istringstream; 147typedef basic_istringstream<wchar_t> wistringstream; 148 149// Class template basic_ostringstream [ostringstream] 150template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 151class basic_ostringstream 152 : public basic_ostream<charT, traits> 153{ 154public: 155 // types: 156 typedef charT char_type; 157 typedef traits traits_type; 158 typedef typename traits_type::int_type int_type; 159 typedef typename traits_type::pos_type pos_type; 160 typedef typename traits_type::off_type off_type; 161 typedef Allocator allocator_type; 162 163 // [ostringstream.cons] Constructors: 164 explicit basic_ostringstream(ios_base::openmode which = ios_base::out); // before C++20 165 basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20 166 explicit basic_ostringstream(ios_base::openmode which); // C++20 167 explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& s, 168 ios_base::openmode which = ios_base::out); 169 basic_ostringstream(ios_base::openmode which, const allocator_type& a); // C++20 170 explicit basic_ostringstream(basic_string<char_type, traits_type, allocator_type>&& s, 171 ios_base::openmode which = ios_base::out); // C++20 172 template <class SAlloc> 173 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 174 : basic_ostringstream(s, ios_base::out, a) {} // C++20 175 template <class SAlloc> 176 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 177 ios_base::openmode which, const allocator_type& a); // C++20 178 template <class SAlloc> 179 explicit basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 180 ios_base::openmode which = ios_base::out); // C++20 181 basic_ostringstream(basic_ostringstream&& rhs); 182 183 // [ostringstream.assign] Assign and swap: 184 basic_ostringstream& operator=(basic_ostringstream&& rhs); 185 void swap(basic_ostringstream& rhs); 186 187 // [ostringstream.members] Member functions: 188 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 189 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 190 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 191 template <class SAlloc> 192 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 193 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 194 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 195 void str(const basic_string<char_type, traits_type, allocator_type>& s); 196 template <class SAlloc> 197 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 198 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 199}; 200 201template <class charT, class traits, class Allocator> 202void swap(basic_ostringstream<charT, traits, Allocator>& x, 203 basic_ostringstream<charT, traits, Allocator>& y); 204 205typedef basic_ostringstream<char> ostringstream; 206typedef basic_ostringstream<wchar_t> wostringstream; 207 208// Class template basic_stringstream [stringstream] 209template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 210class basic_stringstream 211 : public basic_iostream<charT, traits> 212{ 213public: 214 // types: 215 typedef charT char_type; 216 typedef traits traits_type; 217 typedef typename traits_type::int_type int_type; 218 typedef typename traits_type::pos_type pos_type; 219 typedef typename traits_type::off_type off_type; 220 typedef Allocator allocator_type; 221 222 // [stringstream.cons] constructors 223 explicit basic_stringstream(ios_base::openmode which = ios_base::out | ios_base::in); // before C++20 224 basic_stringstream() : basic_stringstream(ios_base::out | ios_base::in) {} // C++20 225 explicit basic_stringstream(ios_base::openmode which); // C++20 226 explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& s, 227 ios_base::openmode which = ios_base::out | ios_base::in); 228 basic_stringstream(ios_base::openmode which, const allocator_type& a); // C++20 229 explicit basic_stringstream(basic_string<char_type, traits_type, allocator_type>&& s, 230 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 231 template <class SAlloc> 232 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 233 : basic_stringstream(s, ios_base::out | ios_base::in, a) {} // C++20 234 template <class SAlloc> 235 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 236 ios_base::openmode which, const allocator_type& a); // C++20 237 template <class SAlloc> 238 explicit basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 239 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 240 basic_stringstream(basic_stringstream&& rhs); 241 242 // [stringstream.assign] Assign and swap: 243 basic_stringstream& operator=(basic_stringstream&& rhs); 244 void swap(basic_stringstream& rhs); 245 246 // [stringstream.members] Member functions: 247 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 248 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 249 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 250 template <class SAlloc> 251 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 252 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 253 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 254 void str(const basic_string<char_type, traits_type, allocator_type>& s); 255 template <class SAlloc> 256 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 257 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 258}; 259 260template <class charT, class traits, class Allocator> 261void swap(basic_stringstream<charT, traits, Allocator>& x, 262 basic_stringstream<charT, traits, Allocator>& y); 263 264typedef basic_stringstream<char> stringstream; 265typedef basic_stringstream<wchar_t> wstringstream; 266 267} // std 268 269*/ 270 271// clang-format on 272 273#include <__assert> // all public C++ headers provide the assertion handler 274#include <__availability> 275#include <__config> 276#include <__fwd/sstream.h> 277#include <__utility/swap.h> 278#include <istream> 279#include <ostream> 280#include <string> 281#include <version> 282 283#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 284# pragma GCC system_header 285#endif 286 287_LIBCPP_PUSH_MACROS 288#include <__undef_macros> 289 290 291// TODO(LLVM-19): Remove this once we drop support for Clang 16, 292// which had this bug: https://github.com/llvm/llvm-project/issues/40363 293#ifdef _WIN32 294#define _LIBCPP_HIDE_FROM_ABI_SSTREAM _LIBCPP_ALWAYS_INLINE 295#else 296#define _LIBCPP_HIDE_FROM_ABI_SSTREAM _LIBCPP_HIDE_FROM_ABI 297#endif 298 299_LIBCPP_BEGIN_NAMESPACE_STD 300 301// Class template basic_stringbuf [stringbuf] 302 303template <class _CharT, class _Traits, class _Allocator> 304class _LIBCPP_TEMPLATE_VIS basic_stringbuf 305 : public basic_streambuf<_CharT, _Traits> 306{ 307public: 308 typedef _CharT char_type; 309 typedef _Traits traits_type; 310 typedef typename traits_type::int_type int_type; 311 typedef typename traits_type::pos_type pos_type; 312 typedef typename traits_type::off_type off_type; 313 typedef _Allocator allocator_type; 314 315 typedef basic_string<char_type, traits_type, allocator_type> string_type; 316 317private: 318 319 string_type __str_; 320 mutable char_type* __hm_; 321 ios_base::openmode __mode_; 322 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs(); 323 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs); 324 325public: 326 // [stringbuf.cons] constructors: 327 _LIBCPP_HIDE_FROM_ABI 328 basic_stringbuf() 329 : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {} 330 331 _LIBCPP_HIDE_FROM_ABI 332 explicit basic_stringbuf(ios_base::openmode __wch) 333 : __hm_(nullptr), __mode_(__wch) {} 334 335 _LIBCPP_HIDE_FROM_ABI 336 explicit basic_stringbuf(const string_type& __s, 337 ios_base::openmode __wch = ios_base::in | ios_base::out) 338 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) 339 { 340 str(__s); 341 } 342 343#if _LIBCPP_STD_VER >= 20 344 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a) 345 : basic_stringbuf(ios_base::in | ios_base::out, __a) {} 346 347 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a) 348 : __str_(__a), __hm_(nullptr), __mode_(__wch) {} 349 350 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s, 351 ios_base::openmode __wch = ios_base::in | ios_base::out) 352 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) { 353 __init_buf_ptrs(); 354 } 355 356 template <class _SAlloc> 357 _LIBCPP_HIDE_FROM_ABI 358 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a) 359 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {} 360 361 template <class _SAlloc> 362 _LIBCPP_HIDE_FROM_ABI basic_stringbuf( 363 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a) 364 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) { 365 __init_buf_ptrs(); 366 } 367 368 template <class _SAlloc> 369 requires (!is_same_v<_SAlloc, allocator_type>) 370 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, 371 ios_base::openmode __wch = ios_base::in | ios_base::out) 372 : __str_(__s), __hm_(nullptr), __mode_(__wch) { 373 __init_buf_ptrs(); 374 } 375#endif // _LIBCPP_STD_VER >= 20 376 377 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 378 379#if _LIBCPP_STD_VER >= 20 380 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a) 381 : basic_stringbuf(__rhs.__mode_, __a) { 382 __move_init(std::move(__rhs)); 383 } 384#endif 385 386 // [stringbuf.assign] Assign and swap: 387 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 388 void swap(basic_stringbuf& __rhs) 389#if _LIBCPP_STD_VER >= 20 390 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 391 allocator_traits<allocator_type>::is_always_equal::value) 392#endif 393 ; 394 395 // [stringbuf.members] Member functions: 396 397#if _LIBCPP_STD_VER >= 20 398 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); } 399#endif 400 401#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 402 string_type str() const; 403#else 404 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const & { return str(__str_.get_allocator()); } 405 406 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { 407 const basic_string_view<_CharT, _Traits> __view = view(); 408 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data(); 409 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator()); 410 // But we need something that works in C++20 also. 411 string_type __result(__str_.get_allocator()); 412 __result.__move_assign(std::move(__str_), __pos, __view.size()); 413 __str_.clear(); 414 __init_buf_ptrs(); 415 return __result; 416 } 417#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 418 419#if _LIBCPP_STD_VER >= 20 420 template <class _SAlloc> 421 requires __is_allocator<_SAlloc>::value 422 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 423 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa); 424 } 425 426 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept; 427#endif // _LIBCPP_STD_VER >= 20 428 429 void str(const string_type& __s) { 430 __str_ = __s; 431 __init_buf_ptrs(); 432 } 433 434#if _LIBCPP_STD_VER >= 20 435 template <class _SAlloc> 436 requires (!is_same_v<_SAlloc, allocator_type>) 437 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 438 __str_ = __s; 439 __init_buf_ptrs(); 440 } 441 442 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { 443 __str_ = std::move(__s); 444 __init_buf_ptrs(); 445 } 446#endif // _LIBCPP_STD_VER >= 20 447 448protected: 449 // [stringbuf.virtuals] Overridden virtual functions: 450 int_type underflow() override; 451 int_type pbackfail(int_type __c = traits_type::eof()) override; 452 int_type overflow (int_type __c = traits_type::eof()) override; 453 pos_type seekoff(off_type __off, ios_base::seekdir __way, 454 ios_base::openmode __wch = ios_base::in | ios_base::out) override; 455 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 456 pos_type seekpos(pos_type __sp, 457 ios_base::openmode __wch = ios_base::in | ios_base::out) override { 458 return seekoff(__sp, ios_base::beg, __wch); 459 } 460}; 461 462template <class _CharT, class _Traits, class _Allocator> 463_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 464 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 465 ptrdiff_t __binp = -1; 466 ptrdiff_t __ninp = -1; 467 ptrdiff_t __einp = -1; 468 if (__rhs.eback() != nullptr) 469 { 470 __binp = __rhs.eback() - __p; 471 __ninp = __rhs.gptr() - __p; 472 __einp = __rhs.egptr() - __p; 473 } 474 ptrdiff_t __bout = -1; 475 ptrdiff_t __nout = -1; 476 ptrdiff_t __eout = -1; 477 if (__rhs.pbase() != nullptr) 478 { 479 __bout = __rhs.pbase() - __p; 480 __nout = __rhs.pptr() - __p; 481 __eout = __rhs.epptr() - __p; 482 } 483 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 484 __str_ = std::move(__rhs.__str_); 485 __p = const_cast<char_type*>(__str_.data()); 486 if (__binp != -1) 487 this->setg(__p + __binp, __p + __ninp, __p + __einp); 488 if (__bout != -1) 489 { 490 this->setp(__p + __bout, __p + __eout); 491 this->__pbump(__nout); 492 } 493 __hm_ = __hm == -1 ? nullptr : __p + __hm; 494 __p = const_cast<char_type*>(__rhs.__str_.data()); 495 __rhs.setg(__p, __p, __p); 496 __rhs.setp(__p, __p); 497 __rhs.__hm_ = __p; 498 this->pubimbue(__rhs.getloc()); 499} 500 501template <class _CharT, class _Traits, class _Allocator> 502basic_stringbuf<_CharT, _Traits, _Allocator>& 503basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) 504{ 505 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 506 ptrdiff_t __binp = -1; 507 ptrdiff_t __ninp = -1; 508 ptrdiff_t __einp = -1; 509 if (__rhs.eback() != nullptr) 510 { 511 __binp = __rhs.eback() - __p; 512 __ninp = __rhs.gptr() - __p; 513 __einp = __rhs.egptr() - __p; 514 } 515 ptrdiff_t __bout = -1; 516 ptrdiff_t __nout = -1; 517 ptrdiff_t __eout = -1; 518 if (__rhs.pbase() != nullptr) 519 { 520 __bout = __rhs.pbase() - __p; 521 __nout = __rhs.pptr() - __p; 522 __eout = __rhs.epptr() - __p; 523 } 524 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 525 __str_ = std::move(__rhs.__str_); 526 __p = const_cast<char_type*>(__str_.data()); 527 if (__binp != -1) 528 this->setg(__p + __binp, __p + __ninp, __p + __einp); 529 else 530 this->setg(nullptr, nullptr, nullptr); 531 if (__bout != -1) 532 { 533 this->setp(__p + __bout, __p + __eout); 534 this->__pbump(__nout); 535 } 536 else 537 this->setp(nullptr, nullptr); 538 539 __hm_ = __hm == -1 ? nullptr : __p + __hm; 540 __mode_ = __rhs.__mode_; 541 __p = const_cast<char_type*>(__rhs.__str_.data()); 542 __rhs.setg(__p, __p, __p); 543 __rhs.setp(__p, __p); 544 __rhs.__hm_ = __p; 545 this->pubimbue(__rhs.getloc()); 546 return *this; 547} 548 549template <class _CharT, class _Traits, class _Allocator> 550void 551basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) 552#if _LIBCPP_STD_VER >= 20 553 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value || 554 allocator_traits<_Allocator>::is_always_equal::value) 555#endif 556{ 557 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 558 ptrdiff_t __rbinp = -1; 559 ptrdiff_t __rninp = -1; 560 ptrdiff_t __reinp = -1; 561 if (__rhs.eback() != nullptr) 562 { 563 __rbinp = __rhs.eback() - __p; 564 __rninp = __rhs.gptr() - __p; 565 __reinp = __rhs.egptr() - __p; 566 } 567 ptrdiff_t __rbout = -1; 568 ptrdiff_t __rnout = -1; 569 ptrdiff_t __reout = -1; 570 if (__rhs.pbase() != nullptr) 571 { 572 __rbout = __rhs.pbase() - __p; 573 __rnout = __rhs.pptr() - __p; 574 __reout = __rhs.epptr() - __p; 575 } 576 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 577 __p = const_cast<char_type*>(__str_.data()); 578 ptrdiff_t __lbinp = -1; 579 ptrdiff_t __lninp = -1; 580 ptrdiff_t __leinp = -1; 581 if (this->eback() != nullptr) 582 { 583 __lbinp = this->eback() - __p; 584 __lninp = this->gptr() - __p; 585 __leinp = this->egptr() - __p; 586 } 587 ptrdiff_t __lbout = -1; 588 ptrdiff_t __lnout = -1; 589 ptrdiff_t __leout = -1; 590 if (this->pbase() != nullptr) 591 { 592 __lbout = this->pbase() - __p; 593 __lnout = this->pptr() - __p; 594 __leout = this->epptr() - __p; 595 } 596 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 597 std::swap(__mode_, __rhs.__mode_); 598 __str_.swap(__rhs.__str_); 599 __p = const_cast<char_type*>(__str_.data()); 600 if (__rbinp != -1) 601 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 602 else 603 this->setg(nullptr, nullptr, nullptr); 604 if (__rbout != -1) 605 { 606 this->setp(__p + __rbout, __p + __reout); 607 this->__pbump(__rnout); 608 } 609 else 610 this->setp(nullptr, nullptr); 611 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 612 __p = const_cast<char_type*>(__rhs.__str_.data()); 613 if (__lbinp != -1) 614 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 615 else 616 __rhs.setg(nullptr, nullptr, nullptr); 617 if (__lbout != -1) 618 { 619 __rhs.setp(__p + __lbout, __p + __leout); 620 __rhs.__pbump(__lnout); 621 } 622 else 623 __rhs.setp(nullptr, nullptr); 624 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 625 locale __tl = __rhs.getloc(); 626 __rhs.pubimbue(this->getloc()); 627 this->pubimbue(__tl); 628} 629 630template <class _CharT, class _Traits, class _Allocator> 631inline _LIBCPP_HIDE_FROM_ABI 632void 633swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, 634 basic_stringbuf<_CharT, _Traits, _Allocator>& __y) 635#if _LIBCPP_STD_VER >= 20 636 noexcept(noexcept(__x.swap(__y))) 637#endif 638{ 639 __x.swap(__y); 640} 641 642#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 643template <class _CharT, class _Traits, class _Allocator> 644basic_string<_CharT, _Traits, _Allocator> 645basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 646 if (__mode_ & ios_base::out) { 647 if (__hm_ < this->pptr()) 648 __hm_ = this->pptr(); 649 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 650 } else if (__mode_ & ios_base::in) 651 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 652 return string_type(__str_.get_allocator()); 653} 654#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 655 656template <class _CharT, class _Traits, class _Allocator> 657_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 658 __hm_ = nullptr; 659 char_type* __data = const_cast<char_type*>(__str_.data()); 660 typename string_type::size_type __sz = __str_.size(); 661 if (__mode_ & ios_base::in) { 662 __hm_ = __data + __sz; 663 this->setg(__data, __data, __hm_); 664 } 665 if (__mode_ & ios_base::out) { 666 __hm_ = __data + __sz; 667 __str_.resize(__str_.capacity()); 668 this->setp(__data, __data + __str_.size()); 669 if (__mode_ & (ios_base::app | ios_base::ate)) { 670 while (__sz > INT_MAX) { 671 this->pbump(INT_MAX); 672 __sz -= INT_MAX; 673 } 674 if (__sz > 0) 675 this->pbump(__sz); 676 } 677 } 678} 679 680#if _LIBCPP_STD_VER >= 20 681template <class _CharT, class _Traits, class _Allocator> 682_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits> 683basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept { 684 if (__mode_ & ios_base::out) { 685 if (__hm_ < this->pptr()) 686 __hm_ = this->pptr(); 687 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_); 688 } else if (__mode_ & ios_base::in) 689 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr()); 690 return basic_string_view<_CharT, _Traits>(); 691} 692#endif // _LIBCPP_STD_VER >= 20 693 694template <class _CharT, class _Traits, class _Allocator> 695typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 696basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() 697{ 698 if (__hm_ < this->pptr()) 699 __hm_ = this->pptr(); 700 if (__mode_ & ios_base::in) 701 { 702 if (this->egptr() < __hm_) 703 this->setg(this->eback(), this->gptr(), __hm_); 704 if (this->gptr() < this->egptr()) 705 return traits_type::to_int_type(*this->gptr()); 706 } 707 return traits_type::eof(); 708} 709 710template <class _CharT, class _Traits, class _Allocator> 711typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 712basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) 713{ 714 if (__hm_ < this->pptr()) 715 __hm_ = this->pptr(); 716 if (this->eback() < this->gptr()) 717 { 718 if (traits_type::eq_int_type(__c, traits_type::eof())) 719 { 720 this->setg(this->eback(), this->gptr()-1, __hm_); 721 return traits_type::not_eof(__c); 722 } 723 if ((__mode_ & ios_base::out) || 724 traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) 725 { 726 this->setg(this->eback(), this->gptr()-1, __hm_); 727 *this->gptr() = traits_type::to_char_type(__c); 728 return __c; 729 } 730 } 731 return traits_type::eof(); 732} 733 734template <class _CharT, class _Traits, class _Allocator> 735typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 736basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) 737{ 738 if (!traits_type::eq_int_type(__c, traits_type::eof())) 739 { 740 ptrdiff_t __ninp = this->gptr() - this->eback(); 741 if (this->pptr() == this->epptr()) 742 { 743 if (!(__mode_ & ios_base::out)) 744 return traits_type::eof(); 745#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 746 try 747 { 748#endif // _LIBCPP_HAS_NO_EXCEPTIONS 749 ptrdiff_t __nout = this->pptr() - this->pbase(); 750 ptrdiff_t __hm = __hm_ - this->pbase(); 751 __str_.push_back(char_type()); 752 __str_.resize(__str_.capacity()); 753 char_type* __p = const_cast<char_type*>(__str_.data()); 754 this->setp(__p, __p + __str_.size()); 755 this->__pbump(__nout); 756 __hm_ = this->pbase() + __hm; 757#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 758 } 759 catch (...) 760 { 761 return traits_type::eof(); 762 } 763#endif // _LIBCPP_HAS_NO_EXCEPTIONS 764 } 765 __hm_ = std::max(this->pptr() + 1, __hm_); 766 if (__mode_ & ios_base::in) 767 { 768 char_type* __p = const_cast<char_type*>(__str_.data()); 769 this->setg(__p, __p + __ninp, __hm_); 770 } 771 return this->sputc(traits_type::to_char_type(__c)); 772 } 773 return traits_type::not_eof(__c); 774} 775 776template <class _CharT, class _Traits, class _Allocator> 777typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type 778basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(off_type __off, 779 ios_base::seekdir __way, 780 ios_base::openmode __wch) 781{ 782 if (__hm_ < this->pptr()) 783 __hm_ = this->pptr(); 784 if ((__wch & (ios_base::in | ios_base::out)) == 0) 785 return pos_type(-1); 786 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) 787 && __way == ios_base::cur) 788 return pos_type(-1); 789 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 790 off_type __noff; 791 switch (__way) 792 { 793 case ios_base::beg: 794 __noff = 0; 795 break; 796 case ios_base::cur: 797 if (__wch & ios_base::in) 798 __noff = this->gptr() - this->eback(); 799 else 800 __noff = this->pptr() - this->pbase(); 801 break; 802 case ios_base::end: 803 __noff = __hm; 804 break; 805 default: 806 return pos_type(-1); 807 } 808 __noff += __off; 809 if (__noff < 0 || __hm < __noff) 810 return pos_type(-1); 811 if (__noff != 0) 812 { 813 if ((__wch & ios_base::in) && this->gptr() == nullptr) 814 return pos_type(-1); 815 if ((__wch & ios_base::out) && this->pptr() == nullptr) 816 return pos_type(-1); 817 } 818 if (__wch & ios_base::in) 819 this->setg(this->eback(), this->eback() + __noff, __hm_); 820 if (__wch & ios_base::out) 821 { 822 this->setp(this->pbase(), this->epptr()); 823 this->__pbump(__noff); 824 } 825 return pos_type(__noff); 826} 827 828// Class template basic_istringstream [istringstream] 829 830template <class _CharT, class _Traits, class _Allocator> 831class _LIBCPP_TEMPLATE_VIS basic_istringstream 832 : public basic_istream<_CharT, _Traits> 833{ 834public: 835 typedef _CharT char_type; 836 typedef _Traits traits_type; 837 typedef typename traits_type::int_type int_type; 838 typedef typename traits_type::pos_type pos_type; 839 typedef typename traits_type::off_type off_type; 840 typedef _Allocator allocator_type; 841 842 typedef basic_string<char_type, traits_type, allocator_type> string_type; 843 844private: 845 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 846 847public: 848 // [istringstream.cons] Constructors: 849 _LIBCPP_HIDE_FROM_ABI 850 basic_istringstream() 851 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in) {} 852 853 _LIBCPP_HIDE_FROM_ABI 854 explicit basic_istringstream(ios_base::openmode __wch) 855 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::in) {} 856 857 _LIBCPP_HIDE_FROM_ABI 858 explicit basic_istringstream(const string_type& __s, 859 ios_base::openmode __wch = ios_base::in) 860 : basic_istream<_CharT, _Traits>(&__sb_) 861 , __sb_(__s, __wch | ios_base::in) 862 { } 863 864#if _LIBCPP_STD_VER >= 20 865 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a) 866 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {} 867 868 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in) 869 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {} 870 871 template <class _SAlloc> 872 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 873 : basic_istringstream(__s, ios_base::in, __a) {} 874 875 template <class _SAlloc> 876 _LIBCPP_HIDE_FROM_ABI basic_istringstream( 877 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 878 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {} 879 880 template <class _SAlloc> 881 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 882 ios_base::openmode __wch = ios_base::in) 883 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 884#endif // _LIBCPP_STD_VER >= 20 885 886 _LIBCPP_HIDE_FROM_ABI 887 basic_istringstream(basic_istringstream&& __rhs) 888 : basic_istream<_CharT, _Traits>(std::move(__rhs)) 889 , __sb_(std::move(__rhs.__sb_)) 890 { 891 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 892 } 893 894 // [istringstream.assign] Assign and swap: 895 basic_istringstream& operator=(basic_istringstream&& __rhs) { 896 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 897 __sb_ = std::move(__rhs.__sb_); 898 return *this; 899 } 900 _LIBCPP_HIDE_FROM_ABI 901 void swap(basic_istringstream& __rhs) { 902 basic_istream<char_type, traits_type>::swap(__rhs); 903 __sb_.swap(__rhs.__sb_); 904 } 905 906 // [istringstream.members] Member functions: 907 _LIBCPP_HIDE_FROM_ABI 908 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 909 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 910 } 911 912#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 913 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 914#else 915 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const & { return __sb_.str(); } 916 917 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { return std::move(__sb_).str(); } 918#endif 919 920#if _LIBCPP_STD_VER >= 20 921 template <class _SAlloc> 922 requires __is_allocator<_SAlloc>::value 923 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 924 return __sb_.str(__sa); 925 } 926 927 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 928#endif // _LIBCPP_STD_VER >= 20 929 930 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 931 932#if _LIBCPP_STD_VER >= 20 933 template <class _SAlloc> 934 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 935 __sb_.str(__s); 936 } 937 938 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 939#endif // _LIBCPP_STD_VER >= 20 940}; 941 942template <class _CharT, class _Traits, class _Allocator> 943inline _LIBCPP_HIDE_FROM_ABI 944void 945swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, 946 basic_istringstream<_CharT, _Traits, _Allocator>& __y) 947{ 948 __x.swap(__y); 949} 950 951// Class template basic_ostringstream [ostringstream] 952 953template <class _CharT, class _Traits, class _Allocator> 954class _LIBCPP_TEMPLATE_VIS basic_ostringstream 955 : public basic_ostream<_CharT, _Traits> 956{ 957public: 958 typedef _CharT char_type; 959 typedef _Traits traits_type; 960 typedef typename traits_type::int_type int_type; 961 typedef typename traits_type::pos_type pos_type; 962 typedef typename traits_type::off_type off_type; 963 typedef _Allocator allocator_type; 964 965 typedef basic_string<char_type, traits_type, allocator_type> string_type; 966 967private: 968 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 969 970public: 971 // [ostringstream.cons] Constructors: 972 _LIBCPP_HIDE_FROM_ABI 973 basic_ostringstream() 974 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::out) {} 975 976 _LIBCPP_HIDE_FROM_ABI 977 explicit basic_ostringstream(ios_base::openmode __wch) 978 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::out) {} 979 980 _LIBCPP_HIDE_FROM_ABI 981 explicit basic_ostringstream(const string_type& __s, 982 ios_base::openmode __wch = ios_base::out) 983 : basic_ostream<_CharT, _Traits>(&__sb_) 984 , __sb_(__s, __wch | ios_base::out) 985 { } 986 987#if _LIBCPP_STD_VER >= 20 988 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a) 989 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {} 990 991 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out) 992 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {} 993 994 template <class _SAlloc> 995 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 996 : basic_ostringstream(__s, ios_base::out, __a) {} 997 998 template <class _SAlloc> 999 _LIBCPP_HIDE_FROM_ABI basic_ostringstream( 1000 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1001 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {} 1002 1003 template <class _SAlloc> 1004 requires (!is_same_v<_SAlloc, allocator_type>) 1005 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1006 ios_base::openmode __wch = ios_base::out) 1007 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1008#endif // _LIBCPP_STD_VER >= 20 1009 1010 _LIBCPP_HIDE_FROM_ABI 1011 basic_ostringstream(basic_ostringstream&& __rhs) 1012 : basic_ostream<_CharT, _Traits>(std::move(__rhs)) 1013 , __sb_(std::move(__rhs.__sb_)) 1014 { 1015 basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); 1016 } 1017 1018 // [ostringstream.assign] Assign and swap: 1019 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 1020 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 1021 __sb_ = std::move(__rhs.__sb_); 1022 return *this; 1023 } 1024 1025 _LIBCPP_HIDE_FROM_ABI 1026 void swap(basic_ostringstream& __rhs) { 1027 basic_ostream<char_type, traits_type>::swap(__rhs); 1028 __sb_.swap(__rhs.__sb_); 1029 } 1030 1031 // [ostringstream.members] Member functions: 1032 _LIBCPP_HIDE_FROM_ABI 1033 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1034 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1035 } 1036 1037#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1038 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1039#else 1040 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const & { return __sb_.str(); } 1041 1042 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { return std::move(__sb_).str(); } 1043#endif 1044 1045#if _LIBCPP_STD_VER >= 20 1046 template <class _SAlloc> 1047 requires __is_allocator<_SAlloc>::value 1048 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1049 return __sb_.str(__sa); 1050 } 1051 1052 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1053#endif // _LIBCPP_STD_VER >= 20 1054 1055 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1056 1057#if _LIBCPP_STD_VER >= 20 1058 template <class _SAlloc> 1059 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1060 __sb_.str(__s); 1061 } 1062 1063 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1064#endif // _LIBCPP_STD_VER >= 20 1065}; 1066 1067template <class _CharT, class _Traits, class _Allocator> 1068inline _LIBCPP_HIDE_FROM_ABI 1069void 1070swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, 1071 basic_ostringstream<_CharT, _Traits, _Allocator>& __y) 1072{ 1073 __x.swap(__y); 1074} 1075 1076// Class template basic_stringstream [stringstream] 1077 1078template <class _CharT, class _Traits, class _Allocator> 1079class _LIBCPP_TEMPLATE_VIS basic_stringstream 1080 : public basic_iostream<_CharT, _Traits> 1081{ 1082public: 1083 typedef _CharT char_type; 1084 typedef _Traits traits_type; 1085 typedef typename traits_type::int_type int_type; 1086 typedef typename traits_type::pos_type pos_type; 1087 typedef typename traits_type::off_type off_type; 1088 typedef _Allocator allocator_type; 1089 1090 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1091 1092private: 1093 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1094 1095public: 1096 // [stringstream.cons] constructors 1097 _LIBCPP_HIDE_FROM_ABI 1098 basic_stringstream() 1099 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in | ios_base::out) {} 1100 1101 _LIBCPP_HIDE_FROM_ABI 1102 explicit basic_stringstream(ios_base::openmode __wch) 1103 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__wch) {} 1104 1105 _LIBCPP_HIDE_FROM_ABI 1106 explicit basic_stringstream(const string_type& __s, 1107 ios_base::openmode __wch = ios_base::in | ios_base::out) 1108 : basic_iostream<_CharT, _Traits>(&__sb_) 1109 , __sb_(__s, __wch) 1110 { } 1111 1112#if _LIBCPP_STD_VER >= 20 1113 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a) 1114 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {} 1115 1116 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out | ios_base::in) 1117 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {} 1118 1119 template <class _SAlloc> 1120 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1121 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {} 1122 1123 template <class _SAlloc> 1124 _LIBCPP_HIDE_FROM_ABI basic_stringstream( 1125 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1126 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {} 1127 1128 template <class _SAlloc> 1129 requires (!is_same_v<_SAlloc, allocator_type>) 1130 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1131 ios_base::openmode __wch = ios_base::out | ios_base::in) 1132 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1133#endif // _LIBCPP_STD_VER >= 20 1134 1135 _LIBCPP_HIDE_FROM_ABI 1136 basic_stringstream(basic_stringstream&& __rhs) 1137 : basic_iostream<_CharT, _Traits>(std::move(__rhs)) 1138 , __sb_(std::move(__rhs.__sb_)) 1139 { 1140 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 1141 } 1142 1143 // [stringstream.assign] Assign and swap: 1144 basic_stringstream& operator=(basic_stringstream&& __rhs) { 1145 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 1146 __sb_ = std::move(__rhs.__sb_); 1147 return *this; 1148 } 1149 _LIBCPP_HIDE_FROM_ABI 1150 void swap(basic_stringstream& __rhs) { 1151 basic_iostream<char_type, traits_type>::swap(__rhs); 1152 __sb_.swap(__rhs.__sb_); 1153 } 1154 1155 // [stringstream.members] Member functions: 1156 _LIBCPP_HIDE_FROM_ABI 1157 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1158 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1159 } 1160 1161#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1162 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1163#else 1164 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const & { return __sb_.str(); } 1165 1166 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { return std::move(__sb_).str(); } 1167#endif 1168 1169#if _LIBCPP_STD_VER >= 20 1170 template <class _SAlloc> 1171 requires __is_allocator<_SAlloc>::value 1172 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1173 return __sb_.str(__sa); 1174 } 1175 1176 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1177#endif // _LIBCPP_STD_VER >= 20 1178 1179 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1180 1181#if _LIBCPP_STD_VER >= 20 1182 template <class _SAlloc> 1183 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1184 __sb_.str(__s); 1185 } 1186 1187 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1188#endif // _LIBCPP_STD_VER >= 20 1189}; 1190 1191template <class _CharT, class _Traits, class _Allocator> 1192inline _LIBCPP_HIDE_FROM_ABI 1193void 1194swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, 1195 basic_stringstream<_CharT, _Traits, _Allocator>& __y) 1196{ 1197 __x.swap(__y); 1198} 1199 1200#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 1201extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 1202extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 1203extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 1204extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 1205#endif 1206 1207_LIBCPP_END_NAMESPACE_STD 1208 1209_LIBCPP_POP_MACROS 1210 1211#if _LIBCPP_STD_VER <= 20 && !defined(_LIPCPP_REMOVE_TRANSITIVE_INCLUDES) 1212# include <type_traits> 1213#endif 1214 1215#endif // _LIBCPP_SSTREAM 1216