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