1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_SSTREAM 11#define _LIBCPP_SSTREAM 12 13// clang-format off 14 15/* 16 sstream synopsis [sstream.syn] 17 18// Class template basic_stringbuf [stringbuf] 19template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 20class basic_stringbuf 21 : public basic_streambuf<charT, traits> 22{ 23public: 24 typedef charT char_type; 25 typedef traits traits_type; 26 typedef typename traits_type::int_type int_type; 27 typedef typename traits_type::pos_type pos_type; 28 typedef typename traits_type::off_type off_type; 29 typedef Allocator allocator_type; 30 31 // [stringbuf.cons] constructors: 32 explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out); // before C++20 33 basic_stringbuf() : basic_stringbuf(ios_base::in | ios_base::out) {} // C++20 34 explicit basic_stringbuf(ios_base::openmode which); // C++20 35 explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& s, 36 ios_base::openmode which = ios_base::in | ios_base::out); 37 explicit basic_stringbuf(const allocator_type& a) 38 : basic_stringbuf(ios_base::in | ios_base::out, a) {} // C++20 39 basic_stringbuf(ios_base::openmode which, const allocator_type& a); // C++20 40 explicit basic_stringbuf(basic_string<char_type, traits_type, allocator_type>&& s, 41 ios_base::openmode which = ios_base::in | ios_base::out); // C++20 42 template <class SAlloc> 43 basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 44 : basic_stringbuf(s, ios_base::in | ios_base::out, a) {} // C++20 45 template <class SAlloc> 46 basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, 47 ios_base::openmode which, const allocator_type& a); // C++20 48 template <class SAlloc> 49 explicit basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, 50 ios_base::openmode which = ios_base::in | ios_base::out); // C++20 51 template<class T> 52 explicit basic_stringbuf(const T& t, 53 ios_base::openmode which = ios_base::in | ios_base::out); // Since C++26 54 template<class T> 55 basic_stringbuf(const T& t, const Allocator& a); // Since C++26 56 template<class T> 57 basic_stringbuf(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 58 basic_stringbuf(const basic_stringbuf&) = delete; 59 basic_stringbuf(basic_stringbuf&& rhs); 60 basic_stringbuf(basic_stringbuf&& rhs, const allocator_type& a); // C++20 61 62 // [stringbuf.assign] Assign and swap: 63 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 64 basic_stringbuf& operator=(basic_stringbuf&& rhs); 65 void swap(basic_stringbuf& rhs) noexcept(see below); // conditionally noexcept since C++20 66 67 // [stringbuf.members] Member functions: 68 allocator_type get_allocator() const noexcept; // C++20 69 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 70 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 71 template <class SAlloc> 72 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 73 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 74 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 75 void str(const basic_string<char_type, traits_type, allocator_type>& s); 76 template <class SAlloc> 77 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 78 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 79 template<class T> 80 void str(const T& t); // Since C++26 81 82protected: 83 // [stringbuf.virtuals] Overridden virtual functions: 84 virtual int_type underflow(); 85 virtual int_type pbackfail(int_type c = traits_type::eof()); 86 virtual int_type overflow (int_type c = traits_type::eof()); 87 virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize); 88 virtual pos_type seekoff(off_type off, ios_base::seekdir way, 89 ios_base::openmode which = ios_base::in | ios_base::out); 90 virtual pos_type seekpos(pos_type sp, 91 ios_base::openmode which = ios_base::in | ios_base::out); 92}; 93 94// [stringbuf.assign] non member swap 95template <class charT, class traits, class Allocator> 96void swap(basic_stringbuf<charT, traits, Allocator>& x, 97 basic_stringbuf<charT, traits, Allocator>& y); // conditionally noexcept since C++20 98 99typedef basic_stringbuf<char> stringbuf; 100typedef basic_stringbuf<wchar_t> wstringbuf; 101 102// Class template basic_istringstream [istringstream] 103template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 104class basic_istringstream 105 : public basic_istream<charT, traits> 106{ 107public: 108 typedef charT char_type; 109 typedef traits traits_type; 110 typedef typename traits_type::int_type int_type; 111 typedef typename traits_type::pos_type pos_type; 112 typedef typename traits_type::off_type off_type; 113 typedef Allocator allocator_type; 114 115 // [istringstream.cons] Constructors: 116 explicit basic_istringstream(ios_base::openmode which = ios_base::in); // before C++20 117 basic_istringstream() : basic_istringstream(ios_base::in) {} // C++20 118 explicit basic_istringstream(ios_base::openmode which); // C++20 119 explicit basic_istringstream(const basic_string<char_type, traits_type, allocator_type>& s, 120 ios_base::openmode which = ios_base::in); 121 basic_istringstream(ios_base::openmode which, const allocator_type& a); // C++20 122 explicit basic_istringstream(basic_string<char_type, traits_type, allocator_type>&& s, 123 ios_base::openmode which = ios_base::in); // C++20 124 template <class SAlloc> 125 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 126 : basic_istringstream(s, ios_base::in, a) {} // C++20 127 template <class SAlloc> 128 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 129 ios_base::openmode which, const allocator_type& a); // C++20 130 template <class SAlloc> 131 explicit basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 132 ios_base::openmode which = ios_base::in); // C++20 133 template<class T> 134 explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in); // Since C++26 135 template<class T> 136 basic_istringstream(const T& t, const Allocator& a); // Since C++26 137 template<class T> 138 basic_istringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 139 basic_istringstream(const basic_istringstream&) = delete; 140 basic_istringstream(basic_istringstream&& rhs); 141 142 // [istringstream.assign] Assign and swap: 143 basic_istringstream& operator=(const basic_istringstream&) = delete; 144 basic_istringstream& operator=(basic_istringstream&& rhs); 145 void swap(basic_istringstream& rhs); 146 147 // [istringstream.members] Member functions: 148 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 149 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 150 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 151 template <class SAlloc> 152 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 153 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 154 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 155 void str(const basic_string<char_type, traits_type, allocator_type>& s); 156 template <class SAlloc> 157 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 158 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 159 template<class T> 160 void str(const T& t); // Since C++26 161}; 162 163template <class charT, class traits, class Allocator> 164void swap(basic_istringstream<charT, traits, Allocator>& x, 165 basic_istringstream<charT, traits, Allocator>& y); 166 167typedef basic_istringstream<char> istringstream; 168typedef basic_istringstream<wchar_t> wistringstream; 169 170// Class template basic_ostringstream [ostringstream] 171template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 172class basic_ostringstream 173 : public basic_ostream<charT, traits> 174{ 175public: 176 // types: 177 typedef charT char_type; 178 typedef traits traits_type; 179 typedef typename traits_type::int_type int_type; 180 typedef typename traits_type::pos_type pos_type; 181 typedef typename traits_type::off_type off_type; 182 typedef Allocator allocator_type; 183 184 // [ostringstream.cons] Constructors: 185 explicit basic_ostringstream(ios_base::openmode which = ios_base::out); // before C++20 186 basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20 187 explicit basic_ostringstream(ios_base::openmode which); // C++20 188 explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& s, 189 ios_base::openmode which = ios_base::out); 190 basic_ostringstream(ios_base::openmode which, const allocator_type& a); // C++20 191 explicit basic_ostringstream(basic_string<char_type, traits_type, allocator_type>&& s, 192 ios_base::openmode which = ios_base::out); // C++20 193 template <class SAlloc> 194 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 195 : basic_ostringstream(s, ios_base::out, a) {} // C++20 196 template <class SAlloc> 197 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 198 ios_base::openmode which, const allocator_type& a); // C++20 199 template <class SAlloc> 200 explicit basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 201 ios_base::openmode which = ios_base::out); // C++20 202 template<class T> 203 explicit basic_ostringstream(const T& t, ios_base::openmode which = ios_base::out); // Since C++26 204 template<class T> 205 basic_ostringstream(const T& t, const Allocator& a); // Since C++26 206 template<class T> 207 basic_ostringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 208 basic_ostringstream(const basic_ostringstream&) = delete; 209 basic_ostringstream(basic_ostringstream&& rhs); 210 211 // [ostringstream.assign] Assign and swap: 212 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 213 basic_ostringstream& operator=(basic_ostringstream&& rhs); 214 void swap(basic_ostringstream& rhs); 215 216 // [ostringstream.members] Member functions: 217 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 218 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 219 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 220 template <class SAlloc> 221 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 222 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 223 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 224 void str(const basic_string<char_type, traits_type, allocator_type>& s); 225 template <class SAlloc> 226 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 227 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 228 template<class T> 229 void str(const T& t); // Since C++26 230}; 231 232template <class charT, class traits, class Allocator> 233void swap(basic_ostringstream<charT, traits, Allocator>& x, 234 basic_ostringstream<charT, traits, Allocator>& y); 235 236typedef basic_ostringstream<char> ostringstream; 237typedef basic_ostringstream<wchar_t> wostringstream; 238 239// Class template basic_stringstream [stringstream] 240template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 241class basic_stringstream 242 : public basic_iostream<charT, traits> 243{ 244public: 245 // types: 246 typedef charT char_type; 247 typedef traits traits_type; 248 typedef typename traits_type::int_type int_type; 249 typedef typename traits_type::pos_type pos_type; 250 typedef typename traits_type::off_type off_type; 251 typedef Allocator allocator_type; 252 253 // [stringstream.cons] constructors 254 explicit basic_stringstream(ios_base::openmode which = ios_base::out | ios_base::in); // before C++20 255 basic_stringstream() : basic_stringstream(ios_base::out | ios_base::in) {} // C++20 256 explicit basic_stringstream(ios_base::openmode which); // C++20 257 explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& s, 258 ios_base::openmode which = ios_base::out | ios_base::in); 259 basic_stringstream(ios_base::openmode which, const allocator_type& a); // C++20 260 explicit basic_stringstream(basic_string<char_type, traits_type, allocator_type>&& s, 261 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 262 template <class SAlloc> 263 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 264 : basic_stringstream(s, ios_base::out | ios_base::in, a) {} // C++20 265 template <class SAlloc> 266 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 267 ios_base::openmode which, const allocator_type& a); // C++20 268 template <class SAlloc> 269 explicit basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 270 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 271 template<class T> 272 explicit basic_stringstream(const T& t, 273 ios_base::openmode which = ios_base::out | ios_base::in); // Since C++26 274 template<class T> 275 basic_stringstream(const T& t, const Allocator& a); // Since C++26 276 template<class T> 277 basic_stringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 278 basic_stringstream(const basic_stringstream&) = delete; 279 basic_stringstream(basic_stringstream&& rhs); 280 281 // [stringstream.assign] Assign and swap: 282 basic_stringstream& operator=(const basic_stringstream&) = delete; 283 basic_stringstream& operator=(basic_stringstream&& rhs); 284 void swap(basic_stringstream& rhs); 285 286 // [stringstream.members] Member functions: 287 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 288 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 289 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 290 template <class SAlloc> 291 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 292 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 293 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 294 void str(const basic_string<char_type, traits_type, allocator_type>& s); 295 template <class SAlloc> 296 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 297 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 298 template<class T> 299 void str(const T& t); // Since C++26 300}; 301 302template <class charT, class traits, class Allocator> 303void swap(basic_stringstream<charT, traits, Allocator>& x, 304 basic_stringstream<charT, traits, Allocator>& y); 305 306typedef basic_stringstream<char> stringstream; 307typedef basic_stringstream<wchar_t> wstringstream; 308 309} // std 310 311*/ 312 313// clang-format on 314 315#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) 316# include <__cxx03/sstream> 317#else 318# include <__config> 319 320# if _LIBCPP_HAS_LOCALIZATION 321 322# include <__fwd/sstream.h> 323# include <__ostream/basic_ostream.h> 324# include <__type_traits/is_convertible.h> 325# include <__utility/swap.h> 326# include <ios> 327# include <istream> 328# include <locale> 329# include <string> 330# include <string_view> 331# include <version> 332 333# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 334# pragma GCC system_header 335# endif 336 337_LIBCPP_PUSH_MACROS 338# include <__undef_macros> 339 340_LIBCPP_BEGIN_NAMESPACE_STD 341 342// Class template basic_stringbuf [stringbuf] 343 344template <class _CharT, class _Traits, class _Allocator> 345class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> { 346public: 347 typedef _CharT char_type; 348 typedef _Traits traits_type; 349 typedef typename traits_type::int_type int_type; 350 typedef typename traits_type::pos_type pos_type; 351 typedef typename traits_type::off_type off_type; 352 typedef _Allocator allocator_type; 353 354 typedef basic_string<char_type, traits_type, allocator_type> string_type; 355 356private: 357 string_type __str_; 358 mutable char_type* __hm_; 359 ios_base::openmode __mode_; 360 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs(); 361 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs); 362 363public: 364 // [stringbuf.cons] constructors: 365 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) { 366 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't 367 __init_buf_ptrs(); 368 } 369 370 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) { 371 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't 372 __init_buf_ptrs(); 373 } 374 375 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s, 376 ios_base::openmode __wch = ios_base::in | ios_base::out) 377 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) { 378 str(__s); 379 } 380 381# if _LIBCPP_STD_VER >= 20 382 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a) 383 : basic_stringbuf(ios_base::in | ios_base::out, __a) {} 384 385 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a) 386 : __str_(__a), __hm_(nullptr), __mode_(__wch) { 387 __init_buf_ptrs(); 388 } 389 390 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s, 391 ios_base::openmode __wch = ios_base::in | ios_base::out) 392 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) { 393 __init_buf_ptrs(); 394 } 395 396 template <class _SAlloc> 397 _LIBCPP_HIDE_FROM_ABI 398 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a) 399 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {} 400 401 template <class _SAlloc> 402 _LIBCPP_HIDE_FROM_ABI basic_stringbuf( 403 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a) 404 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) { 405 __init_buf_ptrs(); 406 } 407 408 template <class _SAlloc> 409 requires(!is_same_v<_SAlloc, allocator_type>) 410 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, 411 ios_base::openmode __wch = ios_base::in | ios_base::out) 412 : __str_(__s), __hm_(nullptr), __mode_(__wch) { 413 __init_buf_ptrs(); 414 } 415# endif // _LIBCPP_STD_VER >= 20 416 417# if _LIBCPP_STD_VER >= 26 418 419 template <class _Tp> 420 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 421 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const _Tp& __t, 422 ios_base::openmode __which = ios_base::in | ios_base::out) 423 : basic_stringbuf(__t, __which, _Allocator()) {} 424 425 template <class _Tp> 426 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 427 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, const _Allocator& __a) 428 : basic_stringbuf(__t, ios_base::in | ios_base::out, __a) {} 429 430 template <class _Tp> 431 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 432 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 433 : __hm_(nullptr), __mode_(__which) { 434 basic_string_view<_CharT, _Traits> __sv = __t; 435 __str_ = string_type(__sv, __a); 436 __init_buf_ptrs(); 437 } 438 439# endif // _LIBCPP_STD_VER >= 26 440 441 basic_stringbuf(const basic_stringbuf&) = delete; 442 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 443 444# if _LIBCPP_STD_VER >= 20 445 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a) 446 : basic_stringbuf(__rhs.__mode_, __a) { 447 __move_init(std::move(__rhs)); 448 } 449# endif 450 451 // [stringbuf.assign] Assign and swap: 452 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 453 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 454 void swap(basic_stringbuf& __rhs) 455# if _LIBCPP_STD_VER >= 20 456 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || 457 allocator_traits<allocator_type>::is_always_equal::value) 458# endif 459 ; 460 461 // [stringbuf.members] Member functions: 462 463# if _LIBCPP_STD_VER >= 20 464 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); } 465# endif 466 467# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 468 string_type str() const; 469# else 470 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return str(__str_.get_allocator()); } 471 472 _LIBCPP_HIDE_FROM_ABI string_type str() && { 473 const basic_string_view<_CharT, _Traits> __view = view(); 474 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data(); 475 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator()); 476 // But we need something that works in C++20 also. 477 string_type __result(std::move(__str_), __str_.get_allocator()); 478 __result.resize(__pos + __view.size()); 479 __result.erase(0, __pos); 480 __init_buf_ptrs(); 481 return __result; 482 } 483# endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 484 485# if _LIBCPP_STD_VER >= 20 486 template <class _SAlloc> 487 requires __is_allocator<_SAlloc>::value 488 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 489 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa); 490 } 491 492 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept; 493# endif // _LIBCPP_STD_VER >= 20 494 495 void str(const string_type& __s) { 496 __str_ = __s; 497 __init_buf_ptrs(); 498 } 499 500# if _LIBCPP_STD_VER >= 20 501 template <class _SAlloc> 502 requires(!is_same_v<_SAlloc, allocator_type>) 503 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 504 __str_ = __s; 505 __init_buf_ptrs(); 506 } 507 508 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { 509 __str_ = std::move(__s); 510 __init_buf_ptrs(); 511 } 512# endif // _LIBCPP_STD_VER >= 20 513 514# if _LIBCPP_STD_VER >= 26 515 516 template <class _Tp> 517 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 518 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 519 basic_string_view<_CharT, _Traits> __sv = __t; 520 __str_ = __sv; 521 __init_buf_ptrs(); 522 } 523 524# endif // _LIBCPP_STD_VER >= 26 525 526protected: 527 // [stringbuf.virtuals] Overridden virtual functions: 528 int_type underflow() override; 529 int_type pbackfail(int_type __c = traits_type::eof()) override; 530 int_type overflow(int_type __c = traits_type::eof()) override; 531 pos_type 532 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override; 533 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 534 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override { 535 return seekoff(__sp, ios_base::beg, __wch); 536 } 537}; 538 539template <class _CharT, class _Traits, class _Allocator> 540_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 541 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 542 ptrdiff_t __binp = -1; 543 ptrdiff_t __ninp = -1; 544 ptrdiff_t __einp = -1; 545 if (__rhs.eback() != nullptr) { 546 __binp = __rhs.eback() - __p; 547 __ninp = __rhs.gptr() - __p; 548 __einp = __rhs.egptr() - __p; 549 } 550 ptrdiff_t __bout = -1; 551 ptrdiff_t __nout = -1; 552 ptrdiff_t __eout = -1; 553 if (__rhs.pbase() != nullptr) { 554 __bout = __rhs.pbase() - __p; 555 __nout = __rhs.pptr() - __p; 556 __eout = __rhs.epptr() - __p; 557 } 558 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 559 __str_ = std::move(__rhs.__str_); 560 __p = const_cast<char_type*>(__str_.data()); 561 if (__binp != -1) 562 this->setg(__p + __binp, __p + __ninp, __p + __einp); 563 if (__bout != -1) { 564 this->setp(__p + __bout, __p + __eout); 565 this->__pbump(__nout); 566 } 567 __hm_ = __hm == -1 ? nullptr : __p + __hm; 568 __p = const_cast<char_type*>(__rhs.__str_.data()); 569 __rhs.setg(__p, __p, __p); 570 __rhs.setp(__p, __p); 571 __rhs.__hm_ = __p; 572 this->pubimbue(__rhs.getloc()); 573} 574 575template <class _CharT, class _Traits, class _Allocator> 576basic_stringbuf<_CharT, _Traits, _Allocator>& 577basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) { 578 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 579 ptrdiff_t __binp = -1; 580 ptrdiff_t __ninp = -1; 581 ptrdiff_t __einp = -1; 582 if (__rhs.eback() != nullptr) { 583 __binp = __rhs.eback() - __p; 584 __ninp = __rhs.gptr() - __p; 585 __einp = __rhs.egptr() - __p; 586 } 587 ptrdiff_t __bout = -1; 588 ptrdiff_t __nout = -1; 589 ptrdiff_t __eout = -1; 590 if (__rhs.pbase() != nullptr) { 591 __bout = __rhs.pbase() - __p; 592 __nout = __rhs.pptr() - __p; 593 __eout = __rhs.epptr() - __p; 594 } 595 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 596 __str_ = std::move(__rhs.__str_); 597 __p = const_cast<char_type*>(__str_.data()); 598 if (__binp != -1) 599 this->setg(__p + __binp, __p + __ninp, __p + __einp); 600 else 601 this->setg(nullptr, nullptr, nullptr); 602 if (__bout != -1) { 603 this->setp(__p + __bout, __p + __eout); 604 this->__pbump(__nout); 605 } else 606 this->setp(nullptr, nullptr); 607 608 __hm_ = __hm == -1 ? nullptr : __p + __hm; 609 __mode_ = __rhs.__mode_; 610 __p = const_cast<char_type*>(__rhs.__str_.data()); 611 __rhs.setg(__p, __p, __p); 612 __rhs.setp(__p, __p); 613 __rhs.__hm_ = __p; 614 this->pubimbue(__rhs.getloc()); 615 return *this; 616} 617 618template <class _CharT, class _Traits, class _Allocator> 619void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) 620# if _LIBCPP_STD_VER >= 20 621 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value || 622 allocator_traits<_Allocator>::is_always_equal::value) 623# endif 624{ 625 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 626 ptrdiff_t __rbinp = -1; 627 ptrdiff_t __rninp = -1; 628 ptrdiff_t __reinp = -1; 629 if (__rhs.eback() != nullptr) { 630 __rbinp = __rhs.eback() - __p; 631 __rninp = __rhs.gptr() - __p; 632 __reinp = __rhs.egptr() - __p; 633 } 634 ptrdiff_t __rbout = -1; 635 ptrdiff_t __rnout = -1; 636 ptrdiff_t __reout = -1; 637 if (__rhs.pbase() != nullptr) { 638 __rbout = __rhs.pbase() - __p; 639 __rnout = __rhs.pptr() - __p; 640 __reout = __rhs.epptr() - __p; 641 } 642 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 643 __p = const_cast<char_type*>(__str_.data()); 644 ptrdiff_t __lbinp = -1; 645 ptrdiff_t __lninp = -1; 646 ptrdiff_t __leinp = -1; 647 if (this->eback() != nullptr) { 648 __lbinp = this->eback() - __p; 649 __lninp = this->gptr() - __p; 650 __leinp = this->egptr() - __p; 651 } 652 ptrdiff_t __lbout = -1; 653 ptrdiff_t __lnout = -1; 654 ptrdiff_t __leout = -1; 655 if (this->pbase() != nullptr) { 656 __lbout = this->pbase() - __p; 657 __lnout = this->pptr() - __p; 658 __leout = this->epptr() - __p; 659 } 660 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 661 std::swap(__mode_, __rhs.__mode_); 662 __str_.swap(__rhs.__str_); 663 __p = const_cast<char_type*>(__str_.data()); 664 if (__rbinp != -1) 665 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 666 else 667 this->setg(nullptr, nullptr, nullptr); 668 if (__rbout != -1) { 669 this->setp(__p + __rbout, __p + __reout); 670 this->__pbump(__rnout); 671 } else 672 this->setp(nullptr, nullptr); 673 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 674 __p = const_cast<char_type*>(__rhs.__str_.data()); 675 if (__lbinp != -1) 676 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 677 else 678 __rhs.setg(nullptr, nullptr, nullptr); 679 if (__lbout != -1) { 680 __rhs.setp(__p + __lbout, __p + __leout); 681 __rhs.__pbump(__lnout); 682 } else 683 __rhs.setp(nullptr, nullptr); 684 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 685 locale __tl = __rhs.getloc(); 686 __rhs.pubimbue(this->getloc()); 687 this->pubimbue(__tl); 688} 689 690template <class _CharT, class _Traits, class _Allocator> 691inline _LIBCPP_HIDE_FROM_ABI void 692swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) 693# if _LIBCPP_STD_VER >= 20 694 noexcept(noexcept(__x.swap(__y))) 695# endif 696{ 697 __x.swap(__y); 698} 699 700# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 701template <class _CharT, class _Traits, class _Allocator> 702basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 703 if (__mode_ & ios_base::out) { 704 if (__hm_ < this->pptr()) 705 __hm_ = this->pptr(); 706 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 707 } else if (__mode_ & ios_base::in) 708 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 709 return string_type(__str_.get_allocator()); 710} 711# endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 712 713template <class _CharT, class _Traits, class _Allocator> 714_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 715 __hm_ = nullptr; 716 char_type* __data = const_cast<char_type*>(__str_.data()); 717 typename string_type::size_type __sz = __str_.size(); 718 if (__mode_ & ios_base::in) { 719 __hm_ = __data + __sz; 720 this->setg(__data, __data, __hm_); 721 } 722 if (__mode_ & ios_base::out) { 723 __hm_ = __data + __sz; 724 __str_.resize(__str_.capacity()); 725 this->setp(__data, __data + __str_.size()); 726 if (__mode_ & (ios_base::app | ios_base::ate)) { 727 while (__sz > INT_MAX) { 728 this->pbump(INT_MAX); 729 __sz -= INT_MAX; 730 } 731 if (__sz > 0) 732 this->pbump(__sz); 733 } 734 } 735} 736 737# if _LIBCPP_STD_VER >= 20 738template <class _CharT, class _Traits, class _Allocator> 739_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits> 740basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept { 741 if (__mode_ & ios_base::out) { 742 if (__hm_ < this->pptr()) 743 __hm_ = this->pptr(); 744 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_); 745 } else if (__mode_ & ios_base::in) 746 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr()); 747 return basic_string_view<_CharT, _Traits>(); 748} 749# endif // _LIBCPP_STD_VER >= 20 750 751template <class _CharT, class _Traits, class _Allocator> 752typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 753basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() { 754 if (__hm_ < this->pptr()) 755 __hm_ = this->pptr(); 756 if (__mode_ & ios_base::in) { 757 if (this->egptr() < __hm_) 758 this->setg(this->eback(), this->gptr(), __hm_); 759 if (this->gptr() < this->egptr()) 760 return traits_type::to_int_type(*this->gptr()); 761 } 762 return traits_type::eof(); 763} 764 765template <class _CharT, class _Traits, class _Allocator> 766typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 767basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) { 768 if (__hm_ < this->pptr()) 769 __hm_ = this->pptr(); 770 if (this->eback() < this->gptr()) { 771 if (traits_type::eq_int_type(__c, traits_type::eof())) { 772 this->setg(this->eback(), this->gptr() - 1, __hm_); 773 return traits_type::not_eof(__c); 774 } 775 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) { 776 this->setg(this->eback(), this->gptr() - 1, __hm_); 777 *this->gptr() = traits_type::to_char_type(__c); 778 return __c; 779 } 780 } 781 return traits_type::eof(); 782} 783 784template <class _CharT, class _Traits, class _Allocator> 785typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 786basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) { 787 if (!traits_type::eq_int_type(__c, traits_type::eof())) { 788 ptrdiff_t __ninp = this->gptr() - this->eback(); 789 if (this->pptr() == this->epptr()) { 790 if (!(__mode_ & ios_base::out)) 791 return traits_type::eof(); 792# if _LIBCPP_HAS_EXCEPTIONS 793 try { 794# endif // _LIBCPP_HAS_EXCEPTIONS 795 ptrdiff_t __nout = this->pptr() - this->pbase(); 796 ptrdiff_t __hm = __hm_ - this->pbase(); 797 __str_.push_back(char_type()); 798 __str_.resize(__str_.capacity()); 799 char_type* __p = const_cast<char_type*>(__str_.data()); 800 this->setp(__p, __p + __str_.size()); 801 this->__pbump(__nout); 802 __hm_ = this->pbase() + __hm; 803# if _LIBCPP_HAS_EXCEPTIONS 804 } catch (...) { 805 return traits_type::eof(); 806 } 807# endif // _LIBCPP_HAS_EXCEPTIONS 808 } 809 __hm_ = std::max(this->pptr() + 1, __hm_); 810 if (__mode_ & ios_base::in) { 811 char_type* __p = const_cast<char_type*>(__str_.data()); 812 this->setg(__p, __p + __ninp, __hm_); 813 } 814 return this->sputc(traits_type::to_char_type(__c)); 815 } 816 return traits_type::not_eof(__c); 817} 818 819template <class _CharT, class _Traits, class _Allocator> 820typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff( 821 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) { 822 if (__hm_ < this->pptr()) 823 __hm_ = this->pptr(); 824 if ((__wch & (ios_base::in | ios_base::out)) == 0) 825 return pos_type(-1); 826 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur) 827 return pos_type(-1); 828 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 829 off_type __noff; 830 switch (__way) { 831 case ios_base::beg: 832 __noff = 0; 833 break; 834 case ios_base::cur: 835 if (__wch & ios_base::in) 836 __noff = this->gptr() - this->eback(); 837 else 838 __noff = this->pptr() - this->pbase(); 839 break; 840 case ios_base::end: 841 __noff = __hm; 842 break; 843 default: 844 return pos_type(-1); 845 } 846 __noff += __off; 847 if (__noff < 0 || __hm < __noff) 848 return pos_type(-1); 849 if (__noff != 0) { 850 if ((__wch & ios_base::in) && this->gptr() == nullptr) 851 return pos_type(-1); 852 if ((__wch & ios_base::out) && this->pptr() == nullptr) 853 return pos_type(-1); 854 } 855 if (__wch & ios_base::in) 856 this->setg(this->eback(), this->eback() + __noff, __hm_); 857 if (__wch & ios_base::out) { 858 this->setp(this->pbase(), this->epptr()); 859 this->__pbump(__noff); 860 } 861 return pos_type(__noff); 862} 863 864// Class template basic_istringstream [istringstream] 865 866template <class _CharT, class _Traits, class _Allocator> 867class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> { 868public: 869 typedef _CharT char_type; 870 typedef _Traits traits_type; 871 typedef typename traits_type::int_type int_type; 872 typedef typename traits_type::pos_type pos_type; 873 typedef typename traits_type::off_type off_type; 874 typedef _Allocator allocator_type; 875 876 typedef basic_string<char_type, traits_type, allocator_type> string_type; 877 878private: 879 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 880 881public: 882 // [istringstream.cons] Constructors: 883 _LIBCPP_HIDE_FROM_ABI basic_istringstream() 884 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in) {} 885 886 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch) 887 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in) {} 888 889 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in) 890 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 891 892# if _LIBCPP_STD_VER >= 20 893 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a) 894 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {} 895 896 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in) 897 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {} 898 899 template <class _SAlloc> 900 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 901 : basic_istringstream(__s, ios_base::in, __a) {} 902 903 template <class _SAlloc> 904 _LIBCPP_HIDE_FROM_ABI basic_istringstream( 905 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 906 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {} 907 908 template <class _SAlloc> 909 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 910 ios_base::openmode __wch = ios_base::in) 911 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {} 912# endif // _LIBCPP_STD_VER >= 20 913 914# if _LIBCPP_STD_VER >= 26 915 916 template <class _Tp> 917 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 918 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const _Tp& __t, ios_base::openmode __which = ios_base::in) 919 : basic_istringstream(__t, __which, _Allocator()) {} 920 921 template <class _Tp> 922 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 923 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, const _Allocator& __a) 924 : basic_istringstream(__t, ios_base::in, __a) {} 925 926 template <class _Tp> 927 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 928 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 929 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::in, __a) {} 930 931# endif // _LIBCPP_STD_VER >= 26 932 933 basic_istringstream(const basic_istringstream&) = delete; 934 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs) 935 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 936 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_)); 937 } 938 939 // [istringstream.assign] Assign and swap: 940 basic_istringstream& operator=(const basic_istringstream&) = delete; 941 basic_istringstream& operator=(basic_istringstream&& __rhs) { 942 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 943 __sb_ = std::move(__rhs.__sb_); 944 return *this; 945 } 946 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) { 947 basic_istream<char_type, traits_type>::swap(__rhs); 948 __sb_.swap(__rhs.__sb_); 949 } 950 951 // [istringstream.members] Member functions: 952 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 953 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_)); 954 } 955 956# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 957 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 958# else 959 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 960 961 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 962# endif 963 964# if _LIBCPP_STD_VER >= 20 965 template <class _SAlloc> 966 requires __is_allocator<_SAlloc>::value 967 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 968 return __sb_.str(__sa); 969 } 970 971 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 972# endif // _LIBCPP_STD_VER >= 20 973 974 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 975 976# if _LIBCPP_STD_VER >= 20 977 template <class _SAlloc> 978 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 979 __sb_.str(__s); 980 } 981 982 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 983# endif // _LIBCPP_STD_VER >= 20 984 985# if _LIBCPP_STD_VER >= 26 986 template <class _Tp> 987 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 988 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 989 rdbuf()->str(__t); 990 } 991# endif // _LIBCPP_STD_VER >= 26 992}; 993 994template <class _CharT, class _Traits, class _Allocator> 995inline _LIBCPP_HIDE_FROM_ABI void 996swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) { 997 __x.swap(__y); 998} 999 1000// Class template basic_ostringstream [ostringstream] 1001 1002template <class _CharT, class _Traits, class _Allocator> 1003class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> { 1004public: 1005 typedef _CharT char_type; 1006 typedef _Traits traits_type; 1007 typedef typename traits_type::int_type int_type; 1008 typedef typename traits_type::pos_type pos_type; 1009 typedef typename traits_type::off_type off_type; 1010 typedef _Allocator allocator_type; 1011 1012 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1013 1014private: 1015 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1016 1017public: 1018 // [ostringstream.cons] Constructors: 1019 _LIBCPP_HIDE_FROM_ABI basic_ostringstream() 1020 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::out) {} 1021 1022 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch) 1023 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out) {} 1024 1025 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out) 1026 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1027 1028# if _LIBCPP_STD_VER >= 20 1029 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a) 1030 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {} 1031 1032 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out) 1033 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {} 1034 1035 template <class _SAlloc> 1036 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1037 : basic_ostringstream(__s, ios_base::out, __a) {} 1038 1039 template <class _SAlloc> 1040 _LIBCPP_HIDE_FROM_ABI basic_ostringstream( 1041 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1042 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {} 1043 1044 template <class _SAlloc> 1045 requires(!is_same_v<_SAlloc, allocator_type>) 1046 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1047 ios_base::openmode __wch = ios_base::out) 1048 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {} 1049# endif // _LIBCPP_STD_VER >= 20 1050 1051# if _LIBCPP_STD_VER >= 26 1052 1053 template <class _Tp> 1054 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1055 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const _Tp& __t, ios_base::openmode __which = ios_base::out) 1056 : basic_ostringstream(__t, __which | ios_base::out, _Allocator()) {} 1057 1058 template <class _Tp> 1059 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1060 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, const _Allocator& __a) 1061 : basic_ostringstream(__t, ios_base::out, __a) {} 1062 1063 template <class _Tp> 1064 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1065 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1066 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::out, __a) {} 1067 1068# endif // _LIBCPP_STD_VER >= 26 1069 1070 basic_ostringstream(const basic_ostringstream&) = delete; 1071 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs) 1072 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1073 basic_ostream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_)); 1074 } 1075 1076 // [ostringstream.assign] Assign and swap: 1077 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 1078 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 1079 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 1080 __sb_ = std::move(__rhs.__sb_); 1081 return *this; 1082 } 1083 1084 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) { 1085 basic_ostream<char_type, traits_type>::swap(__rhs); 1086 __sb_.swap(__rhs.__sb_); 1087 } 1088 1089 // [ostringstream.members] Member functions: 1090 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1091 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_)); 1092 } 1093 1094# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1095 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1096# else 1097 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1098 1099 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1100# endif 1101 1102# if _LIBCPP_STD_VER >= 20 1103 template <class _SAlloc> 1104 requires __is_allocator<_SAlloc>::value 1105 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1106 return __sb_.str(__sa); 1107 } 1108 1109 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1110# endif // _LIBCPP_STD_VER >= 20 1111 1112 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1113 1114# if _LIBCPP_STD_VER >= 20 1115 template <class _SAlloc> 1116 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1117 __sb_.str(__s); 1118 } 1119 1120 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1121# endif // _LIBCPP_STD_VER >= 20 1122 1123# if _LIBCPP_STD_VER >= 26 1124 template <class _Tp> 1125 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1126 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1127 rdbuf()->str(__t); 1128 } 1129# endif // _LIBCPP_STD_VER >= 26 1130}; 1131 1132template <class _CharT, class _Traits, class _Allocator> 1133inline _LIBCPP_HIDE_FROM_ABI void 1134swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) { 1135 __x.swap(__y); 1136} 1137 1138// Class template basic_stringstream [stringstream] 1139 1140template <class _CharT, class _Traits, class _Allocator> 1141class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> { 1142public: 1143 typedef _CharT char_type; 1144 typedef _Traits traits_type; 1145 typedef typename traits_type::int_type int_type; 1146 typedef typename traits_type::pos_type pos_type; 1147 typedef typename traits_type::off_type off_type; 1148 typedef _Allocator allocator_type; 1149 1150 typedef basic_string<char_type, traits_type, allocator_type> string_type; 1151 1152private: 1153 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 1154 1155public: 1156 // [stringstream.cons] constructors 1157 _LIBCPP_HIDE_FROM_ABI basic_stringstream() 1158 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in | ios_base::out) {} 1159 1160 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch) 1161 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch) {} 1162 1163 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s, 1164 ios_base::openmode __wch = ios_base::in | ios_base::out) 1165 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1166 1167# if _LIBCPP_STD_VER >= 20 1168 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a) 1169 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {} 1170 1171 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s, 1172 ios_base::openmode __wch = ios_base::out | ios_base::in) 1173 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {} 1174 1175 template <class _SAlloc> 1176 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a) 1177 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {} 1178 1179 template <class _SAlloc> 1180 _LIBCPP_HIDE_FROM_ABI 1181 basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a) 1182 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {} 1183 1184 template <class _SAlloc> 1185 requires(!is_same_v<_SAlloc, allocator_type>) 1186 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, 1187 ios_base::openmode __wch = ios_base::out | ios_base::in) 1188 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {} 1189# endif // _LIBCPP_STD_VER >= 20 1190 1191# if _LIBCPP_STD_VER >= 26 1192 1193 template <class _Tp> 1194 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1195 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const _Tp& __t, 1196 ios_base::openmode __which = ios_base::out | ios_base::in) 1197 : basic_stringstream(__t, __which, _Allocator()) {} 1198 1199 template <class _Tp> 1200 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1201 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, const _Allocator& __a) 1202 : basic_stringstream(__t, ios_base::out | ios_base::in, __a) {} 1203 1204 template <class _Tp> 1205 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1206 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a) 1207 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which, __a) {} 1208 1209# endif // _LIBCPP_STD_VER >= 26 1210 1211 basic_stringstream(const basic_stringstream&) = delete; 1212 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs) 1213 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 1214 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_)); 1215 } 1216 1217 // [stringstream.assign] Assign and swap: 1218 basic_stringstream& operator=(const basic_stringstream&) = delete; 1219 basic_stringstream& operator=(basic_stringstream&& __rhs) { 1220 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 1221 __sb_ = std::move(__rhs.__sb_); 1222 return *this; 1223 } 1224 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) { 1225 basic_iostream<char_type, traits_type>::swap(__rhs); 1226 __sb_.swap(__rhs.__sb_); 1227 } 1228 1229 // [stringstream.members] Member functions: 1230 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 1231 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_)); 1232 } 1233 1234# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY) 1235 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 1236# else 1237 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); } 1238 1239 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); } 1240# endif 1241 1242# if _LIBCPP_STD_VER >= 20 1243 template <class _SAlloc> 1244 requires __is_allocator<_SAlloc>::value 1245 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const { 1246 return __sb_.str(__sa); 1247 } 1248 1249 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); } 1250# endif // _LIBCPP_STD_VER >= 20 1251 1252 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 1253 1254# if _LIBCPP_STD_VER >= 20 1255 template <class _SAlloc> 1256 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) { 1257 __sb_.str(__s); 1258 } 1259 1260 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); } 1261# endif // _LIBCPP_STD_VER >= 20 1262 1263# if _LIBCPP_STD_VER >= 26 1264 template <class _Tp> 1265 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>> 1266 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) { 1267 rdbuf()->str(__t); 1268 } 1269# endif // _LIBCPP_STD_VER >= 26 1270}; 1271 1272template <class _CharT, class _Traits, class _Allocator> 1273inline _LIBCPP_HIDE_FROM_ABI void 1274swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) { 1275 __x.swap(__y); 1276} 1277 1278# if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 1279extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 1280extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 1281extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 1282extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 1283# endif 1284 1285_LIBCPP_END_NAMESPACE_STD 1286 1287_LIBCPP_POP_MACROS 1288 1289# endif // _LIBCPP_HAS_LOCALIZATION 1290 1291# if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 1292# include <ostream> 1293# include <type_traits> 1294# endif 1295#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) 1296 1297#endif // _LIBCPP_SSTREAM 1298