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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_SSTREAM11#define _LIBCPP_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#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)316# include <__cxx03/sstream>317#else318# include <__config>319 320# if _LIBCPP_HAS_LOCALIZATION321 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 <streambuf>329# include <string>330# include <string_view>331# include <version>332 333# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)334# pragma GCC system_header335# endif336 337_LIBCPP_PUSH_MACROS338# include <__undef_macros>339 340_LIBCPP_BEGIN_NAMESPACE_STD341 342// Class template basic_stringbuf [stringbuf]343 344template <class _CharT, class _Traits, class _Allocator>345class 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't367 __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't372 __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 >= 20382 _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_ABI398 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 >= 20416 417# if _LIBCPP_STD_VER >= 26418 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 >= 26440 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 >= 20445 _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# endif450 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 >= 20456 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value ||457 allocator_traits<allocator_type>::is_always_equal::value)458# endif459 ;460 461 // [stringbuf.members] Member functions:462 463# if _LIBCPP_STD_VER >= 20464 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); }465# endif466 467# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)468 string_type str() const;469# else470 _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 >= 20486 template <class _SAlloc>487 requires __is_allocator_v<_SAlloc>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 >= 20494 495 void str(const string_type& __s) {496 __str_ = __s;497 __init_buf_ptrs();498 }499 500# if _LIBCPP_STD_VER >= 20501 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 >= 20513 514# if _LIBCPP_STD_VER >= 26515 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 >= 26525 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_type532 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override;533 _LIBCPP_HIDE_FROM_ABI_VIRTUAL534 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 else601 this->setg(nullptr, nullptr, nullptr);602 if (__bout != -1) {603 this->setp(__p + __bout, __p + __eout);604 this->__pbump(__nout);605 } else606 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 >= 20621 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value ||622 allocator_traits<_Allocator>::is_always_equal::value)623# endif624{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 else667 this->setg(nullptr, nullptr, nullptr);668 if (__rbout != -1) {669 this->setp(__p + __rbout, __p + __reout);670 this->__pbump(__rnout);671 } else672 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 else678 __rhs.setg(nullptr, nullptr, nullptr);679 if (__lbout != -1) {680 __rhs.setp(__p + __lbout, __p + __leout);681 __rhs.__pbump(__lnout);682 } else683 __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 void692swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y)693# if _LIBCPP_STD_VER >= 20694 noexcept(noexcept(__x.swap(__y)))695# endif696{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 >= 20738template <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 >= 20750 751template <class _CharT, class _Traits, class _Allocator>752typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type753basic_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_type767basic_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_type786basic_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_EXCEPTIONS793 try {794# endif // _LIBCPP_HAS_EXCEPTIONS795 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_EXCEPTIONS804 } catch (...) {805 return traits_type::eof();806 }807# endif // _LIBCPP_HAS_EXCEPTIONS808 }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 else838 __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 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 >= 20893 _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 >= 20913 914# if _LIBCPP_STD_VER >= 26915 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 >= 26932 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# else959 _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# endif963 964# if _LIBCPP_STD_VER >= 20965 template <class _SAlloc>966 requires __is_allocator_v<_SAlloc>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 >= 20973 974 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }975 976# if _LIBCPP_STD_VER >= 20977 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 >= 20984 985# if _LIBCPP_STD_VER >= 26986 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 >= 26992};993 994template <class _CharT, class _Traits, class _Allocator>995inline _LIBCPP_HIDE_FROM_ABI void996swap(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 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 >= 201029 _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 >= 201050 1051# if _LIBCPP_STD_VER >= 261052 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 >= 261069 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# else1097 _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# endif1101 1102# if _LIBCPP_STD_VER >= 201103 template <class _SAlloc>1104 requires __is_allocator_v<_SAlloc>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 >= 201111 1112 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }1113 1114# if _LIBCPP_STD_VER >= 201115 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 >= 201122 1123# if _LIBCPP_STD_VER >= 261124 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 >= 261130};1131 1132template <class _CharT, class _Traits, class _Allocator>1133inline _LIBCPP_HIDE_FROM_ABI void1134swap(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 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] constructors1157 _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 >= 201168 _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_ABI1181 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 >= 201190 1191# if _LIBCPP_STD_VER >= 261192 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 >= 261210 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# else1237 _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# endif1241 1242# if _LIBCPP_STD_VER >= 201243 template <class _SAlloc>1244 requires __is_allocator_v<_SAlloc>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 >= 201251 1252 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }1253 1254# if _LIBCPP_STD_VER >= 201255 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 >= 201262 1263# if _LIBCPP_STD_VER >= 261264 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 >= 261270};1271 1272template <class _CharT, class _Traits, class _Allocator>1273inline _LIBCPP_HIDE_FROM_ABI void1274swap(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_11279extern 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# endif1284 1285_LIBCPP_END_NAMESPACE_STD1286 1287_LIBCPP_POP_MACROS1288 1289# endif // _LIBCPP_HAS_LOCALIZATION1290 1291# if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES)1292# include <ostream>1293# include <type_traits>1294# endif1295#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)1296 1297#endif // _LIBCPP_SSTREAM1298