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___CXX03_SSTREAM 11#define _LIBCPP___CXX03_SSTREAM 12 13// clang-format off 14 15/* 16 sstream synopsis [sstream.syn] 17 18// Class template basic_stringbuf [stringbuf] 19template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 20class basic_stringbuf 21 : public basic_streambuf<charT, traits> 22{ 23public: 24 typedef charT char_type; 25 typedef traits traits_type; 26 typedef typename traits_type::int_type int_type; 27 typedef typename traits_type::pos_type pos_type; 28 typedef typename traits_type::off_type off_type; 29 typedef Allocator allocator_type; 30 31 // [stringbuf.cons] constructors: 32 explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out); // before C++20 33 basic_stringbuf() : basic_stringbuf(ios_base::in | ios_base::out) {} // C++20 34 explicit basic_stringbuf(ios_base::openmode which); // C++20 35 explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& s, 36 ios_base::openmode which = ios_base::in | ios_base::out); 37 explicit basic_stringbuf(const allocator_type& a) 38 : basic_stringbuf(ios_base::in | ios_base::out, a) {} // C++20 39 basic_stringbuf(ios_base::openmode which, const allocator_type& a); // C++20 40 explicit basic_stringbuf(basic_string<char_type, traits_type, allocator_type>&& s, 41 ios_base::openmode which = ios_base::in | ios_base::out); // C++20 42 template <class SAlloc> 43 basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 44 : basic_stringbuf(s, ios_base::in | ios_base::out, a) {} // C++20 45 template <class SAlloc> 46 basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, 47 ios_base::openmode which, const allocator_type& a); // C++20 48 template <class SAlloc> 49 explicit basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, 50 ios_base::openmode which = ios_base::in | ios_base::out); // C++20 51 template<class T> 52 explicit basic_stringbuf(const T& t, 53 ios_base::openmode which = ios_base::in | ios_base::out); // Since C++26 54 template<class T> 55 basic_stringbuf(const T& t, const Allocator& a); // Since C++26 56 template<class T> 57 basic_stringbuf(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 58 basic_stringbuf(const basic_stringbuf&) = delete; 59 basic_stringbuf(basic_stringbuf&& rhs); 60 basic_stringbuf(basic_stringbuf&& rhs, const allocator_type& a); // C++20 61 62 // [stringbuf.assign] Assign and swap: 63 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 64 basic_stringbuf& operator=(basic_stringbuf&& rhs); 65 void swap(basic_stringbuf& rhs) noexcept(see below); // conditionally noexcept since C++20 66 67 // [stringbuf.members] Member functions: 68 allocator_type get_allocator() const noexcept; // C++20 69 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 70 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 71 template <class SAlloc> 72 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 73 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 74 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 75 void str(const basic_string<char_type, traits_type, allocator_type>& s); 76 template <class SAlloc> 77 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 78 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 79 template<class T> 80 void str(const T& t); // Since C++26 81 82protected: 83 // [stringbuf.virtuals] Overridden virtual functions: 84 virtual int_type underflow(); 85 virtual int_type pbackfail(int_type c = traits_type::eof()); 86 virtual int_type overflow (int_type c = traits_type::eof()); 87 virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize); 88 virtual pos_type seekoff(off_type off, ios_base::seekdir way, 89 ios_base::openmode which = ios_base::in | ios_base::out); 90 virtual pos_type seekpos(pos_type sp, 91 ios_base::openmode which = ios_base::in | ios_base::out); 92}; 93 94// [stringbuf.assign] non member swap 95template <class charT, class traits, class Allocator> 96void swap(basic_stringbuf<charT, traits, Allocator>& x, 97 basic_stringbuf<charT, traits, Allocator>& y); // conditionally noexcept since C++20 98 99typedef basic_stringbuf<char> stringbuf; 100typedef basic_stringbuf<wchar_t> wstringbuf; 101 102// Class template basic_istringstream [istringstream] 103template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 104class basic_istringstream 105 : public basic_istream<charT, traits> 106{ 107public: 108 typedef charT char_type; 109 typedef traits traits_type; 110 typedef typename traits_type::int_type int_type; 111 typedef typename traits_type::pos_type pos_type; 112 typedef typename traits_type::off_type off_type; 113 typedef Allocator allocator_type; 114 115 // [istringstream.cons] Constructors: 116 explicit basic_istringstream(ios_base::openmode which = ios_base::in); // before C++20 117 basic_istringstream() : basic_istringstream(ios_base::in) {} // C++20 118 explicit basic_istringstream(ios_base::openmode which); // C++20 119 explicit basic_istringstream(const basic_string<char_type, traits_type, allocator_type>& s, 120 ios_base::openmode which = ios_base::in); 121 basic_istringstream(ios_base::openmode which, const allocator_type& a); // C++20 122 explicit basic_istringstream(basic_string<char_type, traits_type, allocator_type>&& s, 123 ios_base::openmode which = ios_base::in); // C++20 124 template <class SAlloc> 125 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 126 : basic_istringstream(s, ios_base::in, a) {} // C++20 127 template <class SAlloc> 128 basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 129 ios_base::openmode which, const allocator_type& a); // C++20 130 template <class SAlloc> 131 explicit basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, 132 ios_base::openmode which = ios_base::in); // C++20 133 template<class T> 134 explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in); // Since C++26 135 template<class T> 136 basic_istringstream(const T& t, const Allocator& a); // Since C++26 137 template<class T> 138 basic_istringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 139 basic_istringstream(const basic_istringstream&) = delete; 140 basic_istringstream(basic_istringstream&& rhs); 141 142 // [istringstream.assign] Assign and swap: 143 basic_istringstream& operator=(const basic_istringstream&) = delete; 144 basic_istringstream& operator=(basic_istringstream&& rhs); 145 void swap(basic_istringstream& rhs); 146 147 // [istringstream.members] Member functions: 148 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 149 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 150 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 151 template <class SAlloc> 152 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 153 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 154 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 155 void str(const basic_string<char_type, traits_type, allocator_type>& s); 156 template <class SAlloc> 157 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 158 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 159 template<class T> 160 void str(const T& t); // Since C++26 161}; 162 163template <class charT, class traits, class Allocator> 164void swap(basic_istringstream<charT, traits, Allocator>& x, 165 basic_istringstream<charT, traits, Allocator>& y); 166 167typedef basic_istringstream<char> istringstream; 168typedef basic_istringstream<wchar_t> wistringstream; 169 170// Class template basic_ostringstream [ostringstream] 171template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 172class basic_ostringstream 173 : public basic_ostream<charT, traits> 174{ 175public: 176 // types: 177 typedef charT char_type; 178 typedef traits traits_type; 179 typedef typename traits_type::int_type int_type; 180 typedef typename traits_type::pos_type pos_type; 181 typedef typename traits_type::off_type off_type; 182 typedef Allocator allocator_type; 183 184 // [ostringstream.cons] Constructors: 185 explicit basic_ostringstream(ios_base::openmode which = ios_base::out); // before C++20 186 basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20 187 explicit basic_ostringstream(ios_base::openmode which); // C++20 188 explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& s, 189 ios_base::openmode which = ios_base::out); 190 basic_ostringstream(ios_base::openmode which, const allocator_type& a); // C++20 191 explicit basic_ostringstream(basic_string<char_type, traits_type, allocator_type>&& s, 192 ios_base::openmode which = ios_base::out); // C++20 193 template <class SAlloc> 194 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 195 : basic_ostringstream(s, ios_base::out, a) {} // C++20 196 template <class SAlloc> 197 basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 198 ios_base::openmode which, const allocator_type& a); // C++20 199 template <class SAlloc> 200 explicit basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, 201 ios_base::openmode which = ios_base::out); // C++20 202 template<class T> 203 explicit basic_ostringstream(const T& t, ios_base::openmode which = ios_base::out); // Since C++26 204 template<class T> 205 basic_ostringstream(const T& t, const Allocator& a); // Since C++26 206 template<class T> 207 basic_ostringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 208 basic_ostringstream(const basic_ostringstream&) = delete; 209 basic_ostringstream(basic_ostringstream&& rhs); 210 211 // [ostringstream.assign] Assign and swap: 212 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 213 basic_ostringstream& operator=(basic_ostringstream&& rhs); 214 void swap(basic_ostringstream& rhs); 215 216 // [ostringstream.members] Member functions: 217 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 218 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 219 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 220 template <class SAlloc> 221 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 222 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 223 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 224 void str(const basic_string<char_type, traits_type, allocator_type>& s); 225 template <class SAlloc> 226 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 227 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 228 template<class T> 229 void str(const T& t); // Since C++26 230}; 231 232template <class charT, class traits, class Allocator> 233void swap(basic_ostringstream<charT, traits, Allocator>& x, 234 basic_ostringstream<charT, traits, Allocator>& y); 235 236typedef basic_ostringstream<char> ostringstream; 237typedef basic_ostringstream<wchar_t> wostringstream; 238 239// Class template basic_stringstream [stringstream] 240template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 241class basic_stringstream 242 : public basic_iostream<charT, traits> 243{ 244public: 245 // types: 246 typedef charT char_type; 247 typedef traits traits_type; 248 typedef typename traits_type::int_type int_type; 249 typedef typename traits_type::pos_type pos_type; 250 typedef typename traits_type::off_type off_type; 251 typedef Allocator allocator_type; 252 253 // [stringstream.cons] constructors 254 explicit basic_stringstream(ios_base::openmode which = ios_base::out | ios_base::in); // before C++20 255 basic_stringstream() : basic_stringstream(ios_base::out | ios_base::in) {} // C++20 256 explicit basic_stringstream(ios_base::openmode which); // C++20 257 explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& s, 258 ios_base::openmode which = ios_base::out | ios_base::in); 259 basic_stringstream(ios_base::openmode which, const allocator_type& a); // C++20 260 explicit basic_stringstream(basic_string<char_type, traits_type, allocator_type>&& s, 261 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 262 template <class SAlloc> 263 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a) 264 : basic_stringstream(s, ios_base::out | ios_base::in, a) {} // C++20 265 template <class SAlloc> 266 basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 267 ios_base::openmode which, const allocator_type& a); // C++20 268 template <class SAlloc> 269 explicit basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, 270 ios_base::openmode which = ios_base::out | ios_base::in); // C++20 271 template<class T> 272 explicit basic_stringstream(const T& t, 273 ios_base::openmode which = ios_base::out | ios_base::in); // Since C++26 274 template<class T> 275 basic_stringstream(const T& t, const Allocator& a); // Since C++26 276 template<class T> 277 basic_stringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26 278 basic_stringstream(const basic_stringstream&) = delete; 279 basic_stringstream(basic_stringstream&& rhs); 280 281 // [stringstream.assign] Assign and swap: 282 basic_stringstream& operator=(const basic_stringstream&) = delete; 283 basic_stringstream& operator=(basic_stringstream&& rhs); 284 void swap(basic_stringstream& rhs); 285 286 // [stringstream.members] Member functions: 287 basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; 288 basic_string<char_type, traits_type, allocator_type> str() const; // before C++20 289 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20 290 template <class SAlloc> 291 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20 292 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20 293 basic_string_view<char_type, traits_type> view() const noexcept; // C++20 294 void str(const basic_string<char_type, traits_type, allocator_type>& s); 295 template <class SAlloc> 296 void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20 297 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20 298 template<class T> 299 void str(const T& t); // Since C++26 300}; 301 302template <class charT, class traits, class Allocator> 303void swap(basic_stringstream<charT, traits, Allocator>& x, 304 basic_stringstream<charT, traits, Allocator>& y); 305 306typedef basic_stringstream<char> stringstream; 307typedef basic_stringstream<wchar_t> wstringstream; 308 309} // std 310 311*/ 312 313// clang-format on 314 315#include <__cxx03/__config> 316#include <__cxx03/__fwd/sstream.h> 317#include <__cxx03/__ostream/basic_ostream.h> 318#include <__cxx03/__type_traits/is_convertible.h> 319#include <__cxx03/__utility/swap.h> 320#include <__cxx03/istream> 321#include <__cxx03/string> 322#include <__cxx03/string_view> 323#include <__cxx03/version> 324 325#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 326# pragma GCC system_header 327#endif 328 329_LIBCPP_PUSH_MACROS 330#include <__cxx03/__undef_macros> 331 332_LIBCPP_BEGIN_NAMESPACE_STD 333 334// Class template basic_stringbuf [stringbuf] 335 336template <class _CharT, class _Traits, class _Allocator> 337class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> { 338public: 339 typedef _CharT char_type; 340 typedef _Traits traits_type; 341 typedef typename traits_type::int_type int_type; 342 typedef typename traits_type::pos_type pos_type; 343 typedef typename traits_type::off_type off_type; 344 typedef _Allocator allocator_type; 345 346 typedef basic_string<char_type, traits_type, allocator_type> string_type; 347 348private: 349 string_type __str_; 350 mutable char_type* __hm_; 351 ios_base::openmode __mode_; 352 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs(); 353 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs); 354 355public: 356 // [stringbuf.cons] constructors: 357 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {} 358 359 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {} 360 361 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s, 362 ios_base::openmode __wch = ios_base::in | ios_base::out) 363 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) { 364 str(__s); 365 } 366 367 basic_stringbuf(const basic_stringbuf&) = delete; 368 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); } 369 370 // [stringbuf.assign] Assign and swap: 371 basic_stringbuf& operator=(const basic_stringbuf&) = delete; 372 basic_stringbuf& operator=(basic_stringbuf&& __rhs); 373 void swap(basic_stringbuf& __rhs); 374 375 // [stringbuf.members] Member functions: 376 377 string_type str() const; 378 379 void str(const string_type& __s) { 380 __str_ = __s; 381 __init_buf_ptrs(); 382 } 383 384protected: 385 // [stringbuf.virtuals] Overridden virtual functions: 386 int_type underflow() override; 387 int_type pbackfail(int_type __c = traits_type::eof()) override; 388 int_type overflow(int_type __c = traits_type::eof()) override; 389 pos_type 390 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override; 391 _LIBCPP_HIDE_FROM_ABI_VIRTUAL 392 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override { 393 return seekoff(__sp, ios_base::beg, __wch); 394 } 395}; 396 397template <class _CharT, class _Traits, class _Allocator> 398_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) { 399 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 400 ptrdiff_t __binp = -1; 401 ptrdiff_t __ninp = -1; 402 ptrdiff_t __einp = -1; 403 if (__rhs.eback() != nullptr) { 404 __binp = __rhs.eback() - __p; 405 __ninp = __rhs.gptr() - __p; 406 __einp = __rhs.egptr() - __p; 407 } 408 ptrdiff_t __bout = -1; 409 ptrdiff_t __nout = -1; 410 ptrdiff_t __eout = -1; 411 if (__rhs.pbase() != nullptr) { 412 __bout = __rhs.pbase() - __p; 413 __nout = __rhs.pptr() - __p; 414 __eout = __rhs.epptr() - __p; 415 } 416 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 417 __str_ = std::move(__rhs.__str_); 418 __p = const_cast<char_type*>(__str_.data()); 419 if (__binp != -1) 420 this->setg(__p + __binp, __p + __ninp, __p + __einp); 421 if (__bout != -1) { 422 this->setp(__p + __bout, __p + __eout); 423 this->__pbump(__nout); 424 } 425 __hm_ = __hm == -1 ? nullptr : __p + __hm; 426 __p = const_cast<char_type*>(__rhs.__str_.data()); 427 __rhs.setg(__p, __p, __p); 428 __rhs.setp(__p, __p); 429 __rhs.__hm_ = __p; 430 this->pubimbue(__rhs.getloc()); 431} 432 433template <class _CharT, class _Traits, class _Allocator> 434basic_stringbuf<_CharT, _Traits, _Allocator>& 435basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) { 436 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 437 ptrdiff_t __binp = -1; 438 ptrdiff_t __ninp = -1; 439 ptrdiff_t __einp = -1; 440 if (__rhs.eback() != nullptr) { 441 __binp = __rhs.eback() - __p; 442 __ninp = __rhs.gptr() - __p; 443 __einp = __rhs.egptr() - __p; 444 } 445 ptrdiff_t __bout = -1; 446 ptrdiff_t __nout = -1; 447 ptrdiff_t __eout = -1; 448 if (__rhs.pbase() != nullptr) { 449 __bout = __rhs.pbase() - __p; 450 __nout = __rhs.pptr() - __p; 451 __eout = __rhs.epptr() - __p; 452 } 453 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 454 __str_ = std::move(__rhs.__str_); 455 __p = const_cast<char_type*>(__str_.data()); 456 if (__binp != -1) 457 this->setg(__p + __binp, __p + __ninp, __p + __einp); 458 else 459 this->setg(nullptr, nullptr, nullptr); 460 if (__bout != -1) { 461 this->setp(__p + __bout, __p + __eout); 462 this->__pbump(__nout); 463 } else 464 this->setp(nullptr, nullptr); 465 466 __hm_ = __hm == -1 ? nullptr : __p + __hm; 467 __mode_ = __rhs.__mode_; 468 __p = const_cast<char_type*>(__rhs.__str_.data()); 469 __rhs.setg(__p, __p, __p); 470 __rhs.setp(__p, __p); 471 __rhs.__hm_ = __p; 472 this->pubimbue(__rhs.getloc()); 473 return *this; 474} 475 476template <class _CharT, class _Traits, class _Allocator> 477void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) { 478 char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); 479 ptrdiff_t __rbinp = -1; 480 ptrdiff_t __rninp = -1; 481 ptrdiff_t __reinp = -1; 482 if (__rhs.eback() != nullptr) { 483 __rbinp = __rhs.eback() - __p; 484 __rninp = __rhs.gptr() - __p; 485 __reinp = __rhs.egptr() - __p; 486 } 487 ptrdiff_t __rbout = -1; 488 ptrdiff_t __rnout = -1; 489 ptrdiff_t __reout = -1; 490 if (__rhs.pbase() != nullptr) { 491 __rbout = __rhs.pbase() - __p; 492 __rnout = __rhs.pptr() - __p; 493 __reout = __rhs.epptr() - __p; 494 } 495 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; 496 __p = const_cast<char_type*>(__str_.data()); 497 ptrdiff_t __lbinp = -1; 498 ptrdiff_t __lninp = -1; 499 ptrdiff_t __leinp = -1; 500 if (this->eback() != nullptr) { 501 __lbinp = this->eback() - __p; 502 __lninp = this->gptr() - __p; 503 __leinp = this->egptr() - __p; 504 } 505 ptrdiff_t __lbout = -1; 506 ptrdiff_t __lnout = -1; 507 ptrdiff_t __leout = -1; 508 if (this->pbase() != nullptr) { 509 __lbout = this->pbase() - __p; 510 __lnout = this->pptr() - __p; 511 __leout = this->epptr() - __p; 512 } 513 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; 514 std::swap(__mode_, __rhs.__mode_); 515 __str_.swap(__rhs.__str_); 516 __p = const_cast<char_type*>(__str_.data()); 517 if (__rbinp != -1) 518 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); 519 else 520 this->setg(nullptr, nullptr, nullptr); 521 if (__rbout != -1) { 522 this->setp(__p + __rbout, __p + __reout); 523 this->__pbump(__rnout); 524 } else 525 this->setp(nullptr, nullptr); 526 __hm_ = __rhm == -1 ? nullptr : __p + __rhm; 527 __p = const_cast<char_type*>(__rhs.__str_.data()); 528 if (__lbinp != -1) 529 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); 530 else 531 __rhs.setg(nullptr, nullptr, nullptr); 532 if (__lbout != -1) { 533 __rhs.setp(__p + __lbout, __p + __leout); 534 __rhs.__pbump(__lnout); 535 } else 536 __rhs.setp(nullptr, nullptr); 537 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; 538 locale __tl = __rhs.getloc(); 539 __rhs.pubimbue(this->getloc()); 540 this->pubimbue(__tl); 541} 542 543template <class _CharT, class _Traits, class _Allocator> 544inline _LIBCPP_HIDE_FROM_ABI void 545swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) { 546 __x.swap(__y); 547} 548 549template <class _CharT, class _Traits, class _Allocator> 550basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const { 551 if (__mode_ & ios_base::out) { 552 if (__hm_ < this->pptr()) 553 __hm_ = this->pptr(); 554 return string_type(this->pbase(), __hm_, __str_.get_allocator()); 555 } else if (__mode_ & ios_base::in) 556 return string_type(this->eback(), this->egptr(), __str_.get_allocator()); 557 return string_type(__str_.get_allocator()); 558} 559 560template <class _CharT, class _Traits, class _Allocator> 561_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() { 562 __hm_ = nullptr; 563 char_type* __data = const_cast<char_type*>(__str_.data()); 564 typename string_type::size_type __sz = __str_.size(); 565 if (__mode_ & ios_base::in) { 566 __hm_ = __data + __sz; 567 this->setg(__data, __data, __hm_); 568 } 569 if (__mode_ & ios_base::out) { 570 __hm_ = __data + __sz; 571 __str_.resize(__str_.capacity()); 572 this->setp(__data, __data + __str_.size()); 573 if (__mode_ & (ios_base::app | ios_base::ate)) { 574 while (__sz > INT_MAX) { 575 this->pbump(INT_MAX); 576 __sz -= INT_MAX; 577 } 578 if (__sz > 0) 579 this->pbump(__sz); 580 } 581 } 582} 583 584template <class _CharT, class _Traits, class _Allocator> 585typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 586basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() { 587 if (__hm_ < this->pptr()) 588 __hm_ = this->pptr(); 589 if (__mode_ & ios_base::in) { 590 if (this->egptr() < __hm_) 591 this->setg(this->eback(), this->gptr(), __hm_); 592 if (this->gptr() < this->egptr()) 593 return traits_type::to_int_type(*this->gptr()); 594 } 595 return traits_type::eof(); 596} 597 598template <class _CharT, class _Traits, class _Allocator> 599typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 600basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) { 601 if (__hm_ < this->pptr()) 602 __hm_ = this->pptr(); 603 if (this->eback() < this->gptr()) { 604 if (traits_type::eq_int_type(__c, traits_type::eof())) { 605 this->setg(this->eback(), this->gptr() - 1, __hm_); 606 return traits_type::not_eof(__c); 607 } 608 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) { 609 this->setg(this->eback(), this->gptr() - 1, __hm_); 610 *this->gptr() = traits_type::to_char_type(__c); 611 return __c; 612 } 613 } 614 return traits_type::eof(); 615} 616 617template <class _CharT, class _Traits, class _Allocator> 618typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type 619basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) { 620 if (!traits_type::eq_int_type(__c, traits_type::eof())) { 621 ptrdiff_t __ninp = this->gptr() - this->eback(); 622 if (this->pptr() == this->epptr()) { 623 if (!(__mode_ & ios_base::out)) 624 return traits_type::eof(); 625#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 626 try { 627#endif // _LIBCPP_HAS_NO_EXCEPTIONS 628 ptrdiff_t __nout = this->pptr() - this->pbase(); 629 ptrdiff_t __hm = __hm_ - this->pbase(); 630 __str_.push_back(char_type()); 631 __str_.resize(__str_.capacity()); 632 char_type* __p = const_cast<char_type*>(__str_.data()); 633 this->setp(__p, __p + __str_.size()); 634 this->__pbump(__nout); 635 __hm_ = this->pbase() + __hm; 636#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 637 } catch (...) { 638 return traits_type::eof(); 639 } 640#endif // _LIBCPP_HAS_NO_EXCEPTIONS 641 } 642 __hm_ = std::max(this->pptr() + 1, __hm_); 643 if (__mode_ & ios_base::in) { 644 char_type* __p = const_cast<char_type*>(__str_.data()); 645 this->setg(__p, __p + __ninp, __hm_); 646 } 647 return this->sputc(traits_type::to_char_type(__c)); 648 } 649 return traits_type::not_eof(__c); 650} 651 652template <class _CharT, class _Traits, class _Allocator> 653typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff( 654 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) { 655 if (__hm_ < this->pptr()) 656 __hm_ = this->pptr(); 657 if ((__wch & (ios_base::in | ios_base::out)) == 0) 658 return pos_type(-1); 659 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur) 660 return pos_type(-1); 661 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); 662 off_type __noff; 663 switch (__way) { 664 case ios_base::beg: 665 __noff = 0; 666 break; 667 case ios_base::cur: 668 if (__wch & ios_base::in) 669 __noff = this->gptr() - this->eback(); 670 else 671 __noff = this->pptr() - this->pbase(); 672 break; 673 case ios_base::end: 674 __noff = __hm; 675 break; 676 default: 677 return pos_type(-1); 678 } 679 __noff += __off; 680 if (__noff < 0 || __hm < __noff) 681 return pos_type(-1); 682 if (__noff != 0) { 683 if ((__wch & ios_base::in) && this->gptr() == nullptr) 684 return pos_type(-1); 685 if ((__wch & ios_base::out) && this->pptr() == nullptr) 686 return pos_type(-1); 687 } 688 if (__wch & ios_base::in) 689 this->setg(this->eback(), this->eback() + __noff, __hm_); 690 if (__wch & ios_base::out) { 691 this->setp(this->pbase(), this->epptr()); 692 this->__pbump(__noff); 693 } 694 return pos_type(__noff); 695} 696 697// Class template basic_istringstream [istringstream] 698 699template <class _CharT, class _Traits, class _Allocator> 700class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> { 701public: 702 typedef _CharT char_type; 703 typedef _Traits traits_type; 704 typedef typename traits_type::int_type int_type; 705 typedef typename traits_type::pos_type pos_type; 706 typedef typename traits_type::off_type off_type; 707 typedef _Allocator allocator_type; 708 709 typedef basic_string<char_type, traits_type, allocator_type> string_type; 710 711private: 712 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 713 714public: 715 // [istringstream.cons] Constructors: 716 _LIBCPP_HIDE_FROM_ABI basic_istringstream() : basic_istream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in) {} 717 718 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch) 719 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::in) {} 720 721 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in) 722 : basic_istream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::in) {} 723 724 basic_istringstream(const basic_istringstream&) = delete; 725 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs) 726 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 727 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 728 } 729 730 // [istringstream.assign] Assign and swap: 731 basic_istringstream& operator=(const basic_istringstream&) = delete; 732 basic_istringstream& operator=(basic_istringstream&& __rhs) { 733 basic_istream<char_type, traits_type>::operator=(std::move(__rhs)); 734 __sb_ = std::move(__rhs.__sb_); 735 return *this; 736 } 737 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) { 738 basic_istream<char_type, traits_type>::swap(__rhs); 739 __sb_.swap(__rhs.__sb_); 740 } 741 742 // [istringstream.members] Member functions: 743 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 744 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 745 } 746 747 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 748 749 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 750}; 751 752template <class _CharT, class _Traits, class _Allocator> 753inline _LIBCPP_HIDE_FROM_ABI void 754swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) { 755 __x.swap(__y); 756} 757 758// Class template basic_ostringstream [ostringstream] 759 760template <class _CharT, class _Traits, class _Allocator> 761class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> { 762public: 763 typedef _CharT char_type; 764 typedef _Traits traits_type; 765 typedef typename traits_type::int_type int_type; 766 typedef typename traits_type::pos_type pos_type; 767 typedef typename traits_type::off_type off_type; 768 typedef _Allocator allocator_type; 769 770 typedef basic_string<char_type, traits_type, allocator_type> string_type; 771 772private: 773 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 774 775public: 776 // [ostringstream.cons] Constructors: 777 _LIBCPP_HIDE_FROM_ABI basic_ostringstream() : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::out) {} 778 779 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch) 780 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__wch | ios_base::out) {} 781 782 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out) 783 : basic_ostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch | ios_base::out) {} 784 785 basic_ostringstream(const basic_ostringstream&) = delete; 786 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs) 787 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 788 basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); 789 } 790 791 // [ostringstream.assign] Assign and swap: 792 basic_ostringstream& operator=(const basic_ostringstream&) = delete; 793 basic_ostringstream& operator=(basic_ostringstream&& __rhs) { 794 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs)); 795 __sb_ = std::move(__rhs.__sb_); 796 return *this; 797 } 798 799 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) { 800 basic_ostream<char_type, traits_type>::swap(__rhs); 801 __sb_.swap(__rhs.__sb_); 802 } 803 804 // [ostringstream.members] Member functions: 805 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 806 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 807 } 808 809 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 810 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 811}; 812 813template <class _CharT, class _Traits, class _Allocator> 814inline _LIBCPP_HIDE_FROM_ABI void 815swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) { 816 __x.swap(__y); 817} 818 819// Class template basic_stringstream [stringstream] 820 821template <class _CharT, class _Traits, class _Allocator> 822class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> { 823public: 824 typedef _CharT char_type; 825 typedef _Traits traits_type; 826 typedef typename traits_type::int_type int_type; 827 typedef typename traits_type::pos_type pos_type; 828 typedef typename traits_type::off_type off_type; 829 typedef _Allocator allocator_type; 830 831 typedef basic_string<char_type, traits_type, allocator_type> string_type; 832 833private: 834 basic_stringbuf<char_type, traits_type, allocator_type> __sb_; 835 836public: 837 // [stringstream.cons] constructors 838 _LIBCPP_HIDE_FROM_ABI basic_stringstream() 839 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(ios_base::in | ios_base::out) {} 840 841 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch) 842 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__wch) {} 843 844 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s, 845 ios_base::openmode __wch = ios_base::in | ios_base::out) 846 : basic_iostream<_CharT, _Traits>(&__sb_), __sb_(__s, __wch) {} 847 848 basic_stringstream(const basic_stringstream&) = delete; 849 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs) 850 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) { 851 basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); 852 } 853 854 // [stringstream.assign] Assign and swap: 855 basic_stringstream& operator=(const basic_stringstream&) = delete; 856 basic_stringstream& operator=(basic_stringstream&& __rhs) { 857 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs)); 858 __sb_ = std::move(__rhs.__sb_); 859 return *this; 860 } 861 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) { 862 basic_iostream<char_type, traits_type>::swap(__rhs); 863 __sb_.swap(__rhs.__sb_); 864 } 865 866 // [stringstream.members] Member functions: 867 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const { 868 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); 869 } 870 871 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); } 872 873 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); } 874}; 875 876template <class _CharT, class _Traits, class _Allocator> 877inline _LIBCPP_HIDE_FROM_ABI void 878swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) { 879 __x.swap(__y); 880} 881 882#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 883extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>; 884extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>; 885extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>; 886extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>; 887#endif 888 889_LIBCPP_END_NAMESPACE_STD 890 891_LIBCPP_POP_MACROS 892 893#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 894# include <__cxx03/ostream> 895# include <__cxx03/type_traits> 896#endif 897 898#endif // _LIBCPP___CXX03_SSTREAM 899