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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-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___CXX03_SSTREAM11#define _LIBCPP___CXX03_SSTREAM12 13// clang-format off14 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_stringbuf21 : 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++2033 basic_stringbuf() : basic_stringbuf(ios_base::in | ios_base::out) {} // C++2034 explicit basic_stringbuf(ios_base::openmode which); // C++2035 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++2039 basic_stringbuf(ios_base::openmode which, const allocator_type& a); // C++2040 explicit basic_stringbuf(basic_string<char_type, traits_type, allocator_type>&& s,41 ios_base::openmode which = ios_base::in | ios_base::out); // C++2042 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++2045 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++2048 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++2051 template<class T>52 explicit basic_stringbuf(const T& t,53 ios_base::openmode which = ios_base::in | ios_base::out); // Since C++2654 template<class T>55 basic_stringbuf(const T& t, const Allocator& a); // Since C++2656 template<class T>57 basic_stringbuf(const T& t, ios_base::openmode which, const Allocator& a); // Since C++2658 basic_stringbuf(const basic_stringbuf&) = delete;59 basic_stringbuf(basic_stringbuf&& rhs);60 basic_stringbuf(basic_stringbuf&& rhs, const allocator_type& a); // C++2061 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++2066 67 // [stringbuf.members] Member functions:68 allocator_type get_allocator() const noexcept; // C++2069 basic_string<char_type, traits_type, allocator_type> str() const; // before C++2070 basic_string<char_type, traits_type, allocator_type> str() const &; // C++2071 template <class SAlloc>72 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++2073 basic_string<char_type, traits_type, allocator_type> str() &&; // C++2074 basic_string_view<char_type, traits_type> view() const noexcept; // C++2075 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++2078 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++2079 template<class T>80 void str(const T& t); // Since C++2681 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 swap95template <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++2098 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_istringstream105 : 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++20117 basic_istringstream() : basic_istringstream(ios_base::in) {} // C++20118 explicit basic_istringstream(ios_base::openmode which); // C++20119 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++20122 explicit basic_istringstream(basic_string<char_type, traits_type, allocator_type>&& s,123 ios_base::openmode which = ios_base::in); // C++20124 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++20127 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++20130 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++20133 template<class T>134 explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in); // Since C++26135 template<class T>136 basic_istringstream(const T& t, const Allocator& a); // Since C++26137 template<class T>138 basic_istringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26139 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++20150 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20151 template <class SAlloc>152 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20153 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20154 basic_string_view<char_type, traits_type> view() const noexcept; // C++20155 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++20158 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20159 template<class T>160 void str(const T& t); // Since C++26161};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_ostringstream173 : 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++20186 basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20187 explicit basic_ostringstream(ios_base::openmode which); // C++20188 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++20191 explicit basic_ostringstream(basic_string<char_type, traits_type, allocator_type>&& s,192 ios_base::openmode which = ios_base::out); // C++20193 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++20196 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++20199 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++20202 template<class T>203 explicit basic_ostringstream(const T& t, ios_base::openmode which = ios_base::out); // Since C++26204 template<class T>205 basic_ostringstream(const T& t, const Allocator& a); // Since C++26206 template<class T>207 basic_ostringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26208 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++20219 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20220 template <class SAlloc>221 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20222 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20223 basic_string_view<char_type, traits_type> view() const noexcept; // C++20224 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++20227 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20228 template<class T>229 void str(const T& t); // Since C++26230};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_stringstream242 : 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] constructors254 explicit basic_stringstream(ios_base::openmode which = ios_base::out | ios_base::in); // before C++20255 basic_stringstream() : basic_stringstream(ios_base::out | ios_base::in) {} // C++20256 explicit basic_stringstream(ios_base::openmode which); // C++20257 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++20260 explicit basic_stringstream(basic_string<char_type, traits_type, allocator_type>&& s,261 ios_base::openmode which = ios_base::out | ios_base::in); // C++20262 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++20265 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++20268 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++20271 template<class T>272 explicit basic_stringstream(const T& t,273 ios_base::openmode which = ios_base::out | ios_base::in); // Since C++26274 template<class T>275 basic_stringstream(const T& t, const Allocator& a); // Since C++26276 template<class T>277 basic_stringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26278 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++20289 basic_string<char_type, traits_type, allocator_type> str() const &; // C++20290 template <class SAlloc>291 basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20292 basic_string<char_type, traits_type, allocator_type> str() &&; // C++20293 basic_string_view<char_type, traits_type> view() const noexcept; // C++20294 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++20297 void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20298 template<class T>299 void str(const T& t); // Since C++26300};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} // std310 311*/312 313// clang-format on314 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_header327#endif328 329_LIBCPP_PUSH_MACROS330#include <__cxx03/__undef_macros>331 332_LIBCPP_BEGIN_NAMESPACE_STD333 334// Class template basic_stringbuf [stringbuf]335 336template <class _CharT, class _Traits, class _Allocator>337class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> {338public:339 typedef _CharT char_type;340 typedef _Traits traits_type;341 typedef typename traits_type::int_type int_type;342 typedef typename traits_type::pos_type pos_type;343 typedef typename traits_type::off_type off_type;344 typedef _Allocator allocator_type;345 346 typedef basic_string<char_type, traits_type, allocator_type> string_type;347 348private:349 string_type __str_;350 mutable char_type* __hm_;351 ios_base::openmode __mode_;352 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs();353 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs);354 355public:356 // [stringbuf.cons] constructors:357 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {358 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't359 __init_buf_ptrs();360 }361 362 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {363 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't364 __init_buf_ptrs();365 }366 367 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s,368 ios_base::openmode __wch = ios_base::in | ios_base::out)369 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) {370 str(__s);371 }372 373 basic_stringbuf(const basic_stringbuf&) = delete;374 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); }375 376 // [stringbuf.assign] Assign and swap:377 basic_stringbuf& operator=(const basic_stringbuf&) = delete;378 basic_stringbuf& operator=(basic_stringbuf&& __rhs);379 void swap(basic_stringbuf& __rhs);380 381 // [stringbuf.members] Member functions:382 383 string_type str() const;384 385 void str(const string_type& __s) {386 __str_ = __s;387 __init_buf_ptrs();388 }389 390protected:391 // [stringbuf.virtuals] Overridden virtual functions:392 int_type underflow() override;393 int_type pbackfail(int_type __c = traits_type::eof()) override;394 int_type overflow(int_type __c = traits_type::eof()) override;395 pos_type396 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override;397 _LIBCPP_HIDE_FROM_ABI_VIRTUAL398 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override {399 return seekoff(__sp, ios_base::beg, __wch);400 }401};402 403template <class _CharT, class _Traits, class _Allocator>404_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) {405 char_type* __p = const_cast<char_type*>(__rhs.__str_.data());406 ptrdiff_t __binp = -1;407 ptrdiff_t __ninp = -1;408 ptrdiff_t __einp = -1;409 if (__rhs.eback() != nullptr) {410 __binp = __rhs.eback() - __p;411 __ninp = __rhs.gptr() - __p;412 __einp = __rhs.egptr() - __p;413 }414 ptrdiff_t __bout = -1;415 ptrdiff_t __nout = -1;416 ptrdiff_t __eout = -1;417 if (__rhs.pbase() != nullptr) {418 __bout = __rhs.pbase() - __p;419 __nout = __rhs.pptr() - __p;420 __eout = __rhs.epptr() - __p;421 }422 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;423 __str_ = std::move(__rhs.__str_);424 __p = const_cast<char_type*>(__str_.data());425 if (__binp != -1)426 this->setg(__p + __binp, __p + __ninp, __p + __einp);427 if (__bout != -1) {428 this->setp(__p + __bout, __p + __eout);429 this->__pbump(__nout);430 }431 __hm_ = __hm == -1 ? nullptr : __p + __hm;432 __p = const_cast<char_type*>(__rhs.__str_.data());433 __rhs.setg(__p, __p, __p);434 __rhs.setp(__p, __p);435 __rhs.__hm_ = __p;436 this->pubimbue(__rhs.getloc());437}438 439template <class _CharT, class _Traits, class _Allocator>440basic_stringbuf<_CharT, _Traits, _Allocator>&441basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) {442 char_type* __p = const_cast<char_type*>(__rhs.__str_.data());443 ptrdiff_t __binp = -1;444 ptrdiff_t __ninp = -1;445 ptrdiff_t __einp = -1;446 if (__rhs.eback() != nullptr) {447 __binp = __rhs.eback() - __p;448 __ninp = __rhs.gptr() - __p;449 __einp = __rhs.egptr() - __p;450 }451 ptrdiff_t __bout = -1;452 ptrdiff_t __nout = -1;453 ptrdiff_t __eout = -1;454 if (__rhs.pbase() != nullptr) {455 __bout = __rhs.pbase() - __p;456 __nout = __rhs.pptr() - __p;457 __eout = __rhs.epptr() - __p;458 }459 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;460 __str_ = std::move(__rhs.__str_);461 __p = const_cast<char_type*>(__str_.data());462 if (__binp != -1)463 this->setg(__p + __binp, __p + __ninp, __p + __einp);464 else465 this->setg(nullptr, nullptr, nullptr);466 if (__bout != -1) {467 this->setp(__p + __bout, __p + __eout);468 this->__pbump(__nout);469 } else470 this->setp(nullptr, nullptr);471 472 __hm_ = __hm == -1 ? nullptr : __p + __hm;473 __mode_ = __rhs.__mode_;474 __p = const_cast<char_type*>(__rhs.__str_.data());475 __rhs.setg(__p, __p, __p);476 __rhs.setp(__p, __p);477 __rhs.__hm_ = __p;478 this->pubimbue(__rhs.getloc());479 return *this;480}481 482template <class _CharT, class _Traits, class _Allocator>483void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) {484 char_type* __p = const_cast<char_type*>(__rhs.__str_.data());485 ptrdiff_t __rbinp = -1;486 ptrdiff_t __rninp = -1;487 ptrdiff_t __reinp = -1;488 if (__rhs.eback() != nullptr) {489 __rbinp = __rhs.eback() - __p;490 __rninp = __rhs.gptr() - __p;491 __reinp = __rhs.egptr() - __p;492 }493 ptrdiff_t __rbout = -1;494 ptrdiff_t __rnout = -1;495 ptrdiff_t __reout = -1;496 if (__rhs.pbase() != nullptr) {497 __rbout = __rhs.pbase() - __p;498 __rnout = __rhs.pptr() - __p;499 __reout = __rhs.epptr() - __p;500 }501 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;502 __p = const_cast<char_type*>(__str_.data());503 ptrdiff_t __lbinp = -1;504 ptrdiff_t __lninp = -1;505 ptrdiff_t __leinp = -1;506 if (this->eback() != nullptr) {507 __lbinp = this->eback() - __p;508 __lninp = this->gptr() - __p;509 __leinp = this->egptr() - __p;510 }511 ptrdiff_t __lbout = -1;512 ptrdiff_t __lnout = -1;513 ptrdiff_t __leout = -1;514 if (this->pbase() != nullptr) {515 __lbout = this->pbase() - __p;516 __lnout = this->pptr() - __p;517 __leout = this->epptr() - __p;518 }519 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p;520 std::swap(__mode_, __rhs.__mode_);521 __str_.swap(__rhs.__str_);522 __p = const_cast<char_type*>(__str_.data());523 if (__rbinp != -1)524 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp);525 else526 this->setg(nullptr, nullptr, nullptr);527 if (__rbout != -1) {528 this->setp(__p + __rbout, __p + __reout);529 this->__pbump(__rnout);530 } else531 this->setp(nullptr, nullptr);532 __hm_ = __rhm == -1 ? nullptr : __p + __rhm;533 __p = const_cast<char_type*>(__rhs.__str_.data());534 if (__lbinp != -1)535 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp);536 else537 __rhs.setg(nullptr, nullptr, nullptr);538 if (__lbout != -1) {539 __rhs.setp(__p + __lbout, __p + __leout);540 __rhs.__pbump(__lnout);541 } else542 __rhs.setp(nullptr, nullptr);543 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm;544 locale __tl = __rhs.getloc();545 __rhs.pubimbue(this->getloc());546 this->pubimbue(__tl);547}548 549template <class _CharT, class _Traits, class _Allocator>550inline _LIBCPP_HIDE_FROM_ABI void551swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y) {552 __x.swap(__y);553}554 555template <class _CharT, class _Traits, class _Allocator>556basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const {557 if (__mode_ & ios_base::out) {558 if (__hm_ < this->pptr())559 __hm_ = this->pptr();560 return string_type(this->pbase(), __hm_, __str_.get_allocator());561 } else if (__mode_ & ios_base::in)562 return string_type(this->eback(), this->egptr(), __str_.get_allocator());563 return string_type(__str_.get_allocator());564}565 566template <class _CharT, class _Traits, class _Allocator>567_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() {568 __hm_ = nullptr;569 char_type* __data = const_cast<char_type*>(__str_.data());570 typename string_type::size_type __sz = __str_.size();571 if (__mode_ & ios_base::in) {572 __hm_ = __data + __sz;573 this->setg(__data, __data, __hm_);574 }575 if (__mode_ & ios_base::out) {576 __hm_ = __data + __sz;577 __str_.resize(__str_.capacity());578 this->setp(__data, __data + __str_.size());579 if (__mode_ & (ios_base::app | ios_base::ate)) {580 while (__sz > INT_MAX) {581 this->pbump(INT_MAX);582 __sz -= INT_MAX;583 }584 if (__sz > 0)585 this->pbump(__sz);586 }587 }588}589 590template <class _CharT, class _Traits, class _Allocator>591typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type592basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() {593 if (__hm_ < this->pptr())594 __hm_ = this->pptr();595 if (__mode_ & ios_base::in) {596 if (this->egptr() < __hm_)597 this->setg(this->eback(), this->gptr(), __hm_);598 if (this->gptr() < this->egptr())599 return traits_type::to_int_type(*this->gptr());600 }601 return traits_type::eof();602}603 604template <class _CharT, class _Traits, class _Allocator>605typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type606basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) {607 if (__hm_ < this->pptr())608 __hm_ = this->pptr();609 if (this->eback() < this->gptr()) {610 if (traits_type::eq_int_type(__c, traits_type::eof())) {611 this->setg(this->eback(), this->gptr() - 1, __hm_);612 return traits_type::not_eof(__c);613 }614 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) {615 this->setg(this->eback(), this->gptr() - 1, __hm_);616 *this->gptr() = traits_type::to_char_type(__c);617 return __c;618 }619 }620 return traits_type::eof();621}622 623template <class _CharT, class _Traits, class _Allocator>624typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type625basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) {626 if (!traits_type::eq_int_type(__c, traits_type::eof())) {627 ptrdiff_t __ninp = this->gptr() - this->eback();628 if (this->pptr() == this->epptr()) {629 if (!(__mode_ & ios_base::out))630 return traits_type::eof();631#ifndef _LIBCPP_HAS_NO_EXCEPTIONS632 try {633#endif // _LIBCPP_HAS_NO_EXCEPTIONS634 ptrdiff_t __nout = this->pptr() - this->pbase();635 ptrdiff_t __hm = __hm_ - this->pbase();636 __str_.push_back(char_type());637 __str_.resize(__str_.capacity());638 char_type* __p = const_cast<char_type*>(__str_.data());639 this->setp(__p, __p + __str_.size());640 this->__pbump(__nout);641 __hm_ = this->pbase() + __hm;642#ifndef _LIBCPP_HAS_NO_EXCEPTIONS643 } catch (...) {644 return traits_type::eof();645 }646#endif // _LIBCPP_HAS_NO_EXCEPTIONS647 }648 __hm_ = std::max(this->pptr() + 1, __hm_);649 if (__mode_ & ios_base::in) {650 char_type* __p = const_cast<char_type*>(__str_.data());651 this->setg(__p, __p + __ninp, __hm_);652 }653 return this->sputc(traits_type::to_char_type(__c));654 }655 return traits_type::not_eof(__c);656}657 658template <class _CharT, class _Traits, class _Allocator>659typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(660 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) {661 if (__hm_ < this->pptr())662 __hm_ = this->pptr();663 if ((__wch & (ios_base::in | ios_base::out)) == 0)664 return pos_type(-1);665 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur)666 return pos_type(-1);667 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data();668 off_type __noff;669 switch (__way) {670 case ios_base::beg:671 __noff = 0;672 break;673 case ios_base::cur:674 if (__wch & ios_base::in)675 __noff = this->gptr() - this->eback();676 else677 __noff = this->pptr() - this->pbase();678 break;679 case ios_base::end:680 __noff = __hm;681 break;682 default:683 return pos_type(-1);684 }685 __noff += __off;686 if (__noff < 0 || __hm < __noff)687 return pos_type(-1);688 if (__noff != 0) {689 if ((__wch & ios_base::in) && this->gptr() == nullptr)690 return pos_type(-1);691 if ((__wch & ios_base::out) && this->pptr() == nullptr)692 return pos_type(-1);693 }694 if (__wch & ios_base::in)695 this->setg(this->eback(), this->eback() + __noff, __hm_);696 if (__wch & ios_base::out) {697 this->setp(this->pbase(), this->epptr());698 this->__pbump(__noff);699 }700 return pos_type(__noff);701}702 703// Class template basic_istringstream [istringstream]704 705template <class _CharT, class _Traits, class _Allocator>706class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> {707public:708 typedef _CharT char_type;709 typedef _Traits traits_type;710 typedef typename traits_type::int_type int_type;711 typedef typename traits_type::pos_type pos_type;712 typedef typename traits_type::off_type off_type;713 typedef _Allocator allocator_type;714 715 typedef basic_string<char_type, traits_type, allocator_type> string_type;716 717private:718 basic_stringbuf<char_type, traits_type, allocator_type> __sb_;719 720public:721 // [istringstream.cons] Constructors:722 _LIBCPP_HIDE_FROM_ABI basic_istringstream()723 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in) {}724 725 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch)726 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in) {}727 728 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in)729 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {}730 731 basic_istringstream(const basic_istringstream&) = delete;732 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs)733 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {734 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));735 }736 737 // [istringstream.assign] Assign and swap:738 basic_istringstream& operator=(const basic_istringstream&) = delete;739 basic_istringstream& operator=(basic_istringstream&& __rhs) {740 basic_istream<char_type, traits_type>::operator=(std::move(__rhs));741 __sb_ = std::move(__rhs.__sb_);742 return *this;743 }744 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) {745 basic_istream<char_type, traits_type>::swap(__rhs);746 __sb_.swap(__rhs.__sb_);747 }748 749 // [istringstream.members] Member functions:750 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {751 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));752 }753 754 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }755 756 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }757};758 759template <class _CharT, class _Traits, class _Allocator>760inline _LIBCPP_HIDE_FROM_ABI void761swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) {762 __x.swap(__y);763}764 765// Class template basic_ostringstream [ostringstream]766 767template <class _CharT, class _Traits, class _Allocator>768class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> {769public:770 typedef _CharT char_type;771 typedef _Traits traits_type;772 typedef typename traits_type::int_type int_type;773 typedef typename traits_type::pos_type pos_type;774 typedef typename traits_type::off_type off_type;775 typedef _Allocator allocator_type;776 777 typedef basic_string<char_type, traits_type, allocator_type> string_type;778 779private:780 basic_stringbuf<char_type, traits_type, allocator_type> __sb_;781 782public:783 // [ostringstream.cons] Constructors:784 _LIBCPP_HIDE_FROM_ABI basic_ostringstream()785 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::out) {}786 787 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch)788 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out) {}789 790 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out)791 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {}792 793 basic_ostringstream(const basic_ostringstream&) = delete;794 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs)795 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {796 basic_ostream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));797 }798 799 // [ostringstream.assign] Assign and swap:800 basic_ostringstream& operator=(const basic_ostringstream&) = delete;801 basic_ostringstream& operator=(basic_ostringstream&& __rhs) {802 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs));803 __sb_ = std::move(__rhs.__sb_);804 return *this;805 }806 807 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) {808 basic_ostream<char_type, traits_type>::swap(__rhs);809 __sb_.swap(__rhs.__sb_);810 }811 812 // [ostringstream.members] Member functions:813 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {814 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));815 }816 817 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }818 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }819};820 821template <class _CharT, class _Traits, class _Allocator>822inline _LIBCPP_HIDE_FROM_ABI void823swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) {824 __x.swap(__y);825}826 827// Class template basic_stringstream [stringstream]828 829template <class _CharT, class _Traits, class _Allocator>830class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> {831public:832 typedef _CharT char_type;833 typedef _Traits traits_type;834 typedef typename traits_type::int_type int_type;835 typedef typename traits_type::pos_type pos_type;836 typedef typename traits_type::off_type off_type;837 typedef _Allocator allocator_type;838 839 typedef basic_string<char_type, traits_type, allocator_type> string_type;840 841private:842 basic_stringbuf<char_type, traits_type, allocator_type> __sb_;843 844public:845 // [stringstream.cons] constructors846 _LIBCPP_HIDE_FROM_ABI basic_stringstream()847 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in | ios_base::out) {}848 849 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch)850 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch) {}851 852 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s,853 ios_base::openmode __wch = ios_base::in | ios_base::out)854 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {}855 856 basic_stringstream(const basic_stringstream&) = delete;857 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs)858 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {859 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));860 }861 862 // [stringstream.assign] Assign and swap:863 basic_stringstream& operator=(const basic_stringstream&) = delete;864 basic_stringstream& operator=(basic_stringstream&& __rhs) {865 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs));866 __sb_ = std::move(__rhs.__sb_);867 return *this;868 }869 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) {870 basic_iostream<char_type, traits_type>::swap(__rhs);871 __sb_.swap(__rhs.__sb_);872 }873 874 // [stringstream.members] Member functions:875 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {876 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));877 }878 879 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }880 881 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }882};883 884template <class _CharT, class _Traits, class _Allocator>885inline _LIBCPP_HIDE_FROM_ABI void886swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) {887 __x.swap(__y);888}889 890#if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1891extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>;892extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>;893extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>;894extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>;895#endif896 897_LIBCPP_END_NAMESPACE_STD898 899_LIBCPP_POP_MACROS900 901#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES)902# include <__cxx03/ostream>903# include <__cxx03/type_traits>904#endif905 906#endif // _LIBCPP___CXX03_SSTREAM907