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// TODO(LLVM-19): Remove this once we drop support for Clang 16, 291// which had this bug: https://github.com/llvm/llvm-project/issues/40363 292#ifdef _WIN32 293# define _LIBCPP_HIDE_FROM_ABI_SSTREAM _LIBCPP_ALWAYS_INLINE 294#else 295# define _LIBCPP_HIDE_FROM_ABI_SSTREAM _LIBCPP_HIDE_FROM_ABI 296#endif 297 298_LIBCPP_BEGIN_NAMESPACE_STD 299 300// Class template basic_stringbuf [stringbuf] 301 302template <class _CharT, class _Traits, class _Allocator> 303class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> { 304public: 305 typedef _CharT char_type; 306 typedef _Traits traits_type; 307 typedef typename traits_type::int_type int_type; 308 typedef typename traits_type::pos_type pos_type; 309 typedef typename traits_type::off_type off_type; 310 typedef _Allocator allocator_type; 311 312 typedef basic_string<char_type, traits_type, allocator_type> string_type; 313 314private: 315 string_type __str_; 316 mutable char_type* __hm_; 317 ios_base::openmode __mode_; 318 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs(); 319 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs); 320 321public: 322 // [stringbuf.cons] constructors: 323 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {} 324 325 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {} 326 327 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s, 328 ios_base::openmode __wch = ios_base::in | ios_base::out) 329 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) { 330 str(__s); 331 } 332 333#if _LIBCPP_STD_VER >= 20 334 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a) 335 : basic_stringbuf(ios_base::in | ios_base::out, __a) {} 336 337 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a) 338 : __str_(__a), __hm_(nullptr), __mode_(__wch) {} 339 340 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s, 341 ios_base::openmode __wch = ios_base::in | ios_base::out) 342 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) { 343 __init_buf_ptrs(); 344 } 345 346 template <class _SAlloc> 347 _LIBCPP_HIDE_FROM_ABI 348 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a) 349 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {} 350 351 template <class _SAlloc> 352 _LIBCPP_HIDE_FROM_ABI basic_stringbuf( 353 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a) 354 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) { 355 __init_buf_ptrs(); 356 } 357 358 template <class _SAlloc> 359 requires(!is_same_v<_SAlloc, allocator_type>) 360 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, 361 ios_base::openmode __wch = ios_base::in | ios_base::out) 362 : __str_(__s), __hm_(nullptr), __mode_(__wch) { 363 __init_buf_ptrs(); 364 } 365#endif // _LIBCPP_STD_VER >= 20 366 367 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 368 369#if _LIBCPP_STD_VER >= 20 370 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a) 371 : basic_stringbuf(__rhs.__mode_, __a) { 372 __move_init(std::move(__rhs)); 373 } 374#endif 375 376 // [stringbuf.assign] Assign and swap: 377 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 378 void swap(basic_stringbuf& __rhs) 379#if _LIBCPP_STD_VER >= 20 380 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 381 allocator_traits<allocator_type>::is_always_equal::value) 382#endif 383 ; 384 385 // [stringbuf.members] Member functions: 386 387#if _LIBCPP_STD_VER >= 20 388 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); } 389#endif 390 391#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 392 string_type str() const; 393#else 394 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const& { return str(__str_.get_allocator()); } 395 396 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { 397 const basic_string_view<_CharT, _Traits> __view = view(); 398 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data(); 399 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator()); 400 // But we need something that works in C++20 also. 401 string_type __result(std::move(__str_), __str_.get_allocator()); 402 __result.resize(__pos + __view.size()); 403 __result.erase(0, __pos); 404 __init_buf_ptrs(); 405 return __result; 406 } 407#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 408 409#if _LIBCPP_STD_VER >= 20 410 template <class _SAlloc> 411 requires __is_allocator<_SAlloc>::value 412 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 413 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa); 414 } 415 416 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept; 417#endif // _LIBCPP_STD_VER >= 20 418 419 void str(const string_type& __s) { 420 __str_ = __s; 421 __init_buf_ptrs(); 422 } 423 424#if _LIBCPP_STD_VER >= 20 425 template <class _SAlloc> 426 requires(!is_same_v<_SAlloc, allocator_type>) 427 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 428 __str_ = __s; 429 __init_buf_ptrs(); 430 } 431 432 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { 433 __str_ = std::move(__s); 434 __init_buf_ptrs(); 435 } 436#endif // _LIBCPP_STD_VER >= 20 437 438protected: 439 // [stringbuf.virtuals] Overridden virtual functions: 440 int_type underflow() override; 441 int_type pbackfail(int_type __c = traits_type::eof()) override; 442 int_type overflow(int_type __c = traits_type::eof()) override; 443 pos_type 444 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override; 445 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 446 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override { 447 return seekoff(__sp, ios_base::beg, __wch); 448 } 449}; 450 451template <class _CharT, class _Traits, class _Allocator> 452_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 453 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 454 ptrdiff_t __binp = -1; 455 ptrdiff_t __ninp = -1; 456 ptrdiff_t __einp = -1; 457 if (__rhs.eback() != nullptr) { 458 __binp = __rhs.eback() - __p; 459 __ninp = __rhs.gptr() - __p; 460 __einp = __rhs.egptr() - __p; 461 } 462 ptrdiff_t __bout = -1; 463 ptrdiff_t __nout = -1; 464 ptrdiff_t __eout = -1; 465 if (__rhs.pbase() != nullptr) { 466 __bout = __rhs.pbase() - __p; 467 __nout = __rhs.pptr() - __p; 468 __eout = __rhs.epptr() - __p; 469 } 470 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 471 __str_ = std::move(__rhs.__str_); 472 __p = const_cast<char_type*>(__str_.data()); 473 if (__binp != -1) 474 this->setg(__p + __binp, __p + __ninp, __p + __einp); 475 if (__bout != -1) { 476 this->setp(__p + __bout, __p + __eout); 477 this->__pbump(__nout); 478 } 479 __hm_ = __hm == -1 ? nullptr : __p + __hm; 480 __p = const_cast<char_type*>(__rhs.__str_.data()); 481 __rhs.setg(__p, __p, __p); 482 __rhs.setp(__p, __p); 483 __rhs.__hm_ = __p; 484 this->pubimbue(__rhs.getloc()); 485} 486 487template <class _CharT, class _Traits, class _Allocator> 488basic_stringbuf<_CharT, _Traits, _Allocator>& 489basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) { 490 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 491 ptrdiff_t __binp = -1; 492 ptrdiff_t __ninp = -1; 493 ptrdiff_t __einp = -1; 494 if (__rhs.eback() != nullptr) { 495 __binp = __rhs.eback() - __p; 496 __ninp = __rhs.gptr() - __p; 497 __einp = __rhs.egptr() - __p; 498 } 499 ptrdiff_t __bout = -1; 500 ptrdiff_t __nout = -1; 501 ptrdiff_t __eout = -1; 502 if (__rhs.pbase() != nullptr) { 503 __bout = __rhs.pbase() - __p; 504 __nout = __rhs.pptr() - __p; 505 __eout = __rhs.epptr() - __p; 506 } 507 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 508 __str_ = std::move(__rhs.__str_); 509 __p = const_cast<char_type*>(__str_.data()); 510 if (__binp != -1) 511 this->setg(__p + __binp, __p + __ninp, __p + __einp); 512 else 513 this->setg(nullptr, nullptr, nullptr); 514 if (__bout != -1) { 515 this->setp(__p + __bout, __p + __eout); 516 this->__pbump(__nout); 517 } else 518 this->setp(nullptr, nullptr); 519 520 __hm_ = __hm == -1 ? nullptr : __p + __hm; 521 __mode_ = __rhs.__mode_; 522 __p = const_cast<char_type*>(__rhs.__str_.data()); 523 __rhs.setg(__p, __p, __p); 524 __rhs.setp(__p, __p); 525 __rhs.__hm_ = __p; 526 this->pubimbue(__rhs.getloc()); 527 return *this; 528} 529 530template <class _CharT, class _Traits, class _Allocator> 531void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) 532#if _LIBCPP_STD_VER >= 20 533 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value || 534 allocator_traits<_Allocator>::is_always_equal::value) 535#endif 536{ 537 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 538 ptrdiff_t __rbinp = -1; 539 ptrdiff_t __rninp = -1; 540 ptrdiff_t __reinp = -1; 541 if (__rhs.eback() != nullptr) { 542 __rbinp = __rhs.eback() - __p; 543 __rninp = __rhs.gptr() - __p; 544 __reinp = __rhs.egptr() - __p; 545 } 546 ptrdiff_t __rbout = -1; 547 ptrdiff_t __rnout = -1; 548 ptrdiff_t __reout = -1; 549 if (__rhs.pbase() != nullptr) { 550 __rbout = __rhs.pbase() - __p; 551 __rnout = __rhs.pptr() - __p; 552 __reout = __rhs.epptr() - __p; 553 } 554 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 555 __p = const_cast<char_type*>(__str_.data()); 556 ptrdiff_t __lbinp = -1; 557 ptrdiff_t __lninp = -1; 558 ptrdiff_t __leinp = -1; 559 if (this->eback() != nullptr) { 560 __lbinp = this->eback() - __p; 561 __lninp = this->gptr() - __p; 562 __leinp = this->egptr() - __p; 563 } 564 ptrdiff_t __lbout = -1; 565 ptrdiff_t __lnout = -1; 566 ptrdiff_t __leout = -1; 567 if (this->pbase() != nullptr) { 568 __lbout = this->pbase() - __p; 569 __lnout = this->pptr() - __p; 570 __leout = this->epptr() - __p; 571 } 572 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 573 std::swap(__mode_, __rhs.__mode_); 574 __str_.swap(__rhs.__str_); 575 __p = const_cast<char_type*>(__str_.data()); 576 if (__rbinp != -1) 577 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 578 else 579 this->setg(nullptr, nullptr, nullptr); 580 if (__rbout != -1) { 581 this->setp(__p + __rbout, __p + __reout); 582 this->__pbump(__rnout); 583 } else 584 this->setp(nullptr, nullptr); 585 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 586 __p = const_cast<char_type*>(__rhs.__str_.data()); 587 if (__lbinp != -1) 588 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 589 else 590 __rhs.setg(nullptr, nullptr, nullptr); 591 if (__lbout != -1) { 592 __rhs.setp(__p + __lbout, __p + __leout); 593 __rhs.__pbump(__lnout); 594 } else 595 __rhs.setp(nullptr, nullptr); 596 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 597 locale __tl = __rhs.getloc(); 598 __rhs.pubimbue(this->getloc()); 599 this->pubimbue(__tl); 600} 601 602template <class _CharT, class _Traits, class _Allocator> 603inline _LIBCPP_HIDE_FROM_ABI void 604swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) 605#if _LIBCPP_STD_VER >= 20 606 noexcept(noexcept(__x.swap(__y))) 607#endif 608{ 609 __x.swap(__y); 610} 611 612#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 613template <class _CharT, class _Traits, class _Allocator> 614basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 615 if (__mode_ & ios_base::out) { 616 if (__hm_ < this->pptr()) 617 __hm_ = this->pptr(); 618 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 619 } else if (__mode_ & ios_base::in) 620 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 621 return string_type(__str_.get_allocator()); 622} 623#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 624 625template <class _CharT, class _Traits, class _Allocator> 626_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 627 __hm_ = nullptr; 628 char_type* __data = const_cast<char_type*>(__str_.data()); 629 typename string_type::size_type __sz = __str_.size(); 630 if (__mode_ & ios_base::in) { 631 __hm_ = __data + __sz; 632 this->setg(__data, __data, __hm_); 633 } 634 if (__mode_ & ios_base::out) { 635 __hm_ = __data + __sz; 636 __str_.resize(__str_.capacity()); 637 this->setp(__data, __data + __str_.size()); 638 if (__mode_ & (ios_base::app | ios_base::ate)) { 639 while (__sz > INT_MAX) { 640 this->pbump(INT_MAX); 641 __sz -= INT_MAX; 642 } 643 if (__sz > 0) 644 this->pbump(__sz); 645 } 646 } 647} 648 649#if _LIBCPP_STD_VER >= 20 650template <class _CharT, class _Traits, class _Allocator> 651_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits> 652basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept { 653 if (__mode_ & ios_base::out) { 654 if (__hm_ < this->pptr()) 655 __hm_ = this->pptr(); 656 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_); 657 } else if (__mode_ & ios_base::in) 658 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr()); 659 return basic_string_view<_CharT, _Traits>(); 660} 661#endif // _LIBCPP_STD_VER >= 20 662 663template <class _CharT, class _Traits, class _Allocator> 664typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 665basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() { 666 if (__hm_ < this->pptr()) 667 __hm_ = this->pptr(); 668 if (__mode_ & ios_base::in) { 669 if (this->egptr() < __hm_) 670 this->setg(this->eback(), this->gptr(), __hm_); 671 if (this->gptr() < this->egptr()) 672 return traits_type::to_int_type(*this->gptr()); 673 } 674 return traits_type::eof(); 675} 676 677template <class _CharT, class _Traits, class _Allocator> 678typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 679basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) { 680 if (__hm_ < this->pptr()) 681 __hm_ = this->pptr(); 682 if (this->eback() < this->gptr()) { 683 if (traits_type::eq_int_type(__c, traits_type::eof())) { 684 this->setg(this->eback(), this->gptr() - 1, __hm_); 685 return traits_type::not_eof(__c); 686 } 687 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) { 688 this->setg(this->eback(), this->gptr() - 1, __hm_); 689 *this->gptr() = traits_type::to_char_type(__c); 690 return __c; 691 } 692 } 693 return traits_type::eof(); 694} 695 696template <class _CharT, class _Traits, class _Allocator> 697typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 698basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) { 699 if (!traits_type::eq_int_type(__c, traits_type::eof())) { 700 ptrdiff_t __ninp = this->gptr() - this->eback(); 701 if (this->pptr() == this->epptr()) { 702 if (!(__mode_ & ios_base::out)) 703 return traits_type::eof(); 704#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 705 try { 706#endif // _LIBCPP_HAS_NO_EXCEPTIONS 707 ptrdiff_t __nout = this->pptr() - this->pbase(); 708 ptrdiff_t __hm = __hm_ - this->pbase(); 709 __str_.push_back(char_type()); 710 __str_.resize(__str_.capacity()); 711 char_type* __p = const_cast<char_type*>(__str_.data()); 712 this->setp(__p, __p + __str_.size()); 713 this->__pbump(__nout); 714 __hm_ = this->pbase() + __hm; 715#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 716 } catch (...) { 717 return traits_type::eof(); 718 } 719#endif // _LIBCPP_HAS_NO_EXCEPTIONS 720 } 721 __hm_ = std::max(this->pptr() + 1, __hm_); 722 if (__mode_ & ios_base::in) { 723 char_type* __p = const_cast<char_type*>(__str_.data()); 724 this->setg(__p, __p + __ninp, __hm_); 725 } 726 return this->sputc(traits_type::to_char_type(__c)); 727 } 728 return traits_type::not_eof(__c); 729} 730 731template <class _CharT, class _Traits, class _Allocator> 732typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff( 733 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) { 734 if (__hm_ < this->pptr()) 735 __hm_ = this->pptr(); 736 if ((__wch & (ios_base::in | ios_base::out)) == 0) 737 return pos_type(-1); 738 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur) 739 return pos_type(-1); 740 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 741 off_type __noff; 742 switch (__way) { 743 case ios_base::beg: 744 __noff = 0; 745 break; 746 case ios_base::cur: 747 if (__wch & ios_base::in) 748 __noff = this->gptr() - this->eback(); 749 else 750 __noff = this->pptr() - this->pbase(); 751 break; 752 case ios_base::end: 753 __noff = __hm; 754 break; 755 default: 756 return pos_type(-1); 757 } 758 __noff += __off; 759 if (__noff < 0 || __hm < __noff) 760 return pos_type(-1); 761 if (__noff != 0) { 762 if ((__wch & ios_base::in) && this->gptr() == nullptr) 763 return pos_type(-1); 764 if ((__wch & ios_base::out) && this->pptr() == nullptr) 765 return pos_type(-1); 766 } 767 if (__wch & ios_base::in) 768 this->setg(this->eback(), this->eback() + __noff, __hm_); 769 if (__wch & ios_base::out) { 770 this->setp(this->pbase(), this->epptr()); 771 this->__pbump(__noff); 772 } 773 return pos_type(__noff); 774} 775 776// Class template basic_istringstream [istringstream] 777 778template <class _CharT, class _Traits, class _Allocator> 779class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> { 780public: 781 typedef _CharT char_type; 782 typedef _Traits traits_type; 783 typedef typename traits_type::int_type int_type; 784 typedef typename traits_type::pos_type pos_type; 785 typedef typename traits_type::off_type off_type; 786 typedef _Allocator allocator_type; 787 788 typedef basic_string<char_type, traits_type, allocator_type> string_type; 789 790private: 791 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 792 793public: 794 // [istringstream.cons] Constructors: 795 _LIBCPP_HIDE_FROM_ABI basic_istringstream() : basic_istream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in) {} 796 797 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch) 798 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::in) {} 799 800 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in) 801 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::in) {} 802 803#if _LIBCPP_STD_VER >= 20 804 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a) 805 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {} 806 807 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in) 808 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {} 809 810 template <class _SAlloc> 811 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 812 : basic_istringstream(__s, ios_base::in, __a) {} 813 814 template <class _SAlloc> 815 _LIBCPP_HIDE_FROM_ABI basic_istringstream( 816 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 817 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {} 818 819 template <class _SAlloc> 820 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 821 ios_base::openmode __wch = ios_base::in) 822 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 823#endif // _LIBCPP_STD_VER >= 20 824 825 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs) 826 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 827 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 828 } 829 830 // [istringstream.assign] Assign and swap: 831 basic_istringstream& operator=(basic_istringstream&& __rhs) { 832 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 833 __sb_ = std::move(__rhs.__sb_); 834 return *this; 835 } 836 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) { 837 basic_istream<char_type, traits_type>::swap(__rhs); 838 __sb_.swap(__rhs.__sb_); 839 } 840 841 // [istringstream.members] Member functions: 842 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 843 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 844 } 845 846#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 847 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 848#else 849 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const& { return __sb_.str(); } 850 851 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { return std::move(__sb_).str(); } 852#endif 853 854#if _LIBCPP_STD_VER >= 20 855 template <class _SAlloc> 856 requires __is_allocator<_SAlloc>::value 857 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 858 return __sb_.str(__sa); 859 } 860 861 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 862#endif // _LIBCPP_STD_VER >= 20 863 864 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 865 866#if _LIBCPP_STD_VER >= 20 867 template <class _SAlloc> 868 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 869 __sb_.str(__s); 870 } 871 872 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 873#endif // _LIBCPP_STD_VER >= 20 874}; 875 876template <class _CharT, class _Traits, class _Allocator> 877inline _LIBCPP_HIDE_FROM_ABI void 878swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) { 879 __x.swap(__y); 880} 881 882// Class template basic_ostringstream [ostringstream] 883 884template <class _CharT, class _Traits, class _Allocator> 885class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> { 886public: 887 typedef _CharT char_type; 888 typedef _Traits traits_type; 889 typedef typename traits_type::int_type int_type; 890 typedef typename traits_type::pos_type pos_type; 891 typedef typename traits_type::off_type off_type; 892 typedef _Allocator allocator_type; 893 894 typedef basic_string<char_type, traits_type, allocator_type> string_type; 895 896private: 897 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 898 899public: 900 // [ostringstream.cons] Constructors: 901 _LIBCPP_HIDE_FROM_ABI basic_ostringstream() : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::out) {} 902 903 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch) 904 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::out) {} 905 906 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out) 907 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::out) {} 908 909#if _LIBCPP_STD_VER >= 20 910 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a) 911 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {} 912 913 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out) 914 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {} 915 916 template <class _SAlloc> 917 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 918 : basic_ostringstream(__s, ios_base::out, __a) {} 919 920 template <class _SAlloc> 921 _LIBCPP_HIDE_FROM_ABI basic_ostringstream( 922 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 923 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {} 924 925 template <class _SAlloc> 926 requires(!is_same_v<_SAlloc, allocator_type>) 927 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 928 ios_base::openmode __wch = ios_base::out) 929 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 930#endif // _LIBCPP_STD_VER >= 20 931 932 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs) 933 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 934 basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); 935 } 936 937 // [ostringstream.assign] Assign and swap: 938 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 939 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 940 __sb_ = std::move(__rhs.__sb_); 941 return *this; 942 } 943 944 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) { 945 basic_ostream<char_type, traits_type>::swap(__rhs); 946 __sb_.swap(__rhs.__sb_); 947 } 948 949 // [ostringstream.members] Member functions: 950 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 951 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 952 } 953 954#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 955 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 956#else 957 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const& { return __sb_.str(); } 958 959 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { return std::move(__sb_).str(); } 960#endif 961 962#if _LIBCPP_STD_VER >= 20 963 template <class _SAlloc> 964 requires __is_allocator<_SAlloc>::value 965 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 966 return __sb_.str(__sa); 967 } 968 969 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 970#endif // _LIBCPP_STD_VER >= 20 971 972 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 973 974#if _LIBCPP_STD_VER >= 20 975 template <class _SAlloc> 976 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 977 __sb_.str(__s); 978 } 979 980 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 981#endif // _LIBCPP_STD_VER >= 20 982}; 983 984template <class _CharT, class _Traits, class _Allocator> 985inline _LIBCPP_HIDE_FROM_ABI void 986swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) { 987 __x.swap(__y); 988} 989 990// Class template basic_stringstream [stringstream] 991 992template <class _CharT, class _Traits, class _Allocator> 993class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> { 994public: 995 typedef _CharT char_type; 996 typedef _Traits traits_type; 997 typedef typename traits_type::int_type int_type; 998 typedef typename traits_type::pos_type pos_type; 999 typedef typename traits_type::off_type off_type; 1000 typedef _Allocator allocator_type; 1001 1002 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1003 1004private: 1005 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1006 1007public: 1008 // [stringstream.cons] constructors 1009 _LIBCPP_HIDE_FROM_ABI basic_stringstream() 1010 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in | ios_base::out) {} 1011 1012 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch) 1013 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__wch) {} 1014 1015 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s, 1016 ios_base::openmode __wch = ios_base::in | ios_base::out) 1017 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch) {} 1018 1019#if _LIBCPP_STD_VER >= 20 1020 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a) 1021 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {} 1022 1023 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s, 1024 ios_base::openmode __wch = ios_base::out | ios_base::in) 1025 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {} 1026 1027 template <class _SAlloc> 1028 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1029 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {} 1030 1031 template <class _SAlloc> 1032 _LIBCPP_HIDE_FROM_ABI 1033 basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1034 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {} 1035 1036 template <class _SAlloc> 1037 requires(!is_same_v<_SAlloc, allocator_type>) 1038 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1039 ios_base::openmode __wch = ios_base::out | ios_base::in) 1040 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1041#endif // _LIBCPP_STD_VER >= 20 1042 1043 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs) 1044 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1045 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 1046 } 1047 1048 // [stringstream.assign] Assign and swap: 1049 basic_stringstream& operator=(basic_stringstream&& __rhs) { 1050 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 1051 __sb_ = std::move(__rhs.__sb_); 1052 return *this; 1053 } 1054 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) { 1055 basic_iostream<char_type, traits_type>::swap(__rhs); 1056 __sb_.swap(__rhs.__sb_); 1057 } 1058 1059 // [stringstream.members] Member functions: 1060 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1061 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 1062 } 1063 1064#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1065 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1066#else 1067 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() const& { return __sb_.str(); } 1068 1069 _LIBCPP_HIDE_FROM_ABI_SSTREAM string_type str() && { return std::move(__sb_).str(); } 1070#endif 1071 1072#if _LIBCPP_STD_VER >= 20 1073 template <class _SAlloc> 1074 requires __is_allocator<_SAlloc>::value 1075 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1076 return __sb_.str(__sa); 1077 } 1078 1079 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1080#endif // _LIBCPP_STD_VER >= 20 1081 1082 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1083 1084#if _LIBCPP_STD_VER >= 20 1085 template <class _SAlloc> 1086 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1087 __sb_.str(__s); 1088 } 1089 1090 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1091#endif // _LIBCPP_STD_VER >= 20 1092}; 1093 1094template <class _CharT, class _Traits, class _Allocator> 1095inline _LIBCPP_HIDE_FROM_ABI void 1096swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) { 1097 __x.swap(__y); 1098} 1099 1100#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 1101extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 1102extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 1103extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 1104extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 1105#endif 1106 1107_LIBCPP_END_NAMESPACE_STD 1108 1109_LIBCPP_POP_MACROS 1110 1111#if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 1112# include <type_traits> 1113#endif 1114 1115#endif // _LIBCPP_SSTREAM 1116