2 //===----------------------------------------------------------------------===//
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
8 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP_SSTREAM
11 #define _LIBCPP_SSTREAM
16 sstream synopsis [sstream.syn]
18 // Class template basic_stringbuf [stringbuf]
19 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
21 : public basic_streambuf<charT, traits>
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;
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
52 explicit basic_stringbuf(const T& t,
53 ios_base::openmode which = ios_base::in | ios_base::out); // Since C++26
55 basic_stringbuf(const T& t, const Allocator& a); // Since C++26
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
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
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
80 void str(const T& t); // Since C++26
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);
94 // [stringbuf.assign] non member swap
95 template <class charT, class traits, class Allocator>
96 void swap(basic_stringbuf<charT, traits, Allocator>& x,
97 basic_stringbuf<charT, traits, Allocator>& y); // conditionally noexcept since C++20
99 typedef basic_stringbuf<char> stringbuf;
100 typedef basic_stringbuf<wchar_t> wstringbuf;
102 // Class template basic_istringstream [istringstream]
103 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
104 class basic_istringstream
105 : public basic_istream<charT, traits>
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;
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
134 explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in); // Since C++26
136 basic_istringstream(const T& t, const Allocator& a); // Since C++26
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);
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);
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
160 void str(const T& t); // Since C++26
163 template <class charT, class traits, class Allocator>
164 void swap(basic_istringstream<charT, traits, Allocator>& x,
165 basic_istringstream<charT, traits, Allocator>& y);
167 typedef basic_istringstream<char> istringstream;
168 typedef basic_istringstream<wchar_t> wistringstream;
170 // Class template basic_ostringstream [ostringstream]
171 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
172 class basic_ostringstream
173 : public basic_ostream<charT, traits>
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;
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
203 explicit basic_ostringstream(const T& t, ios_base::openmode which = ios_base::out); // Since C++26
205 basic_ostringstream(const T& t, const Allocator& a); // Since C++26
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);
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);
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
229 void str(const T& t); // Since C++26
232 template <class charT, class traits, class Allocator>
233 void swap(basic_ostringstream<charT, traits, Allocator>& x,
234 basic_ostringstream<charT, traits, Allocator>& y);
236 typedef basic_ostringstream<char> ostringstream;
237 typedef basic_ostringstream<wchar_t> wostringstream;
239 // Class template basic_stringstream [stringstream]
240 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
241 class basic_stringstream
242 : public basic_iostream<charT, traits>
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;
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
272 explicit basic_stringstream(const T& t,
273 ios_base::openmode which = ios_base::out | ios_base::in); // Since C++26
275 basic_stringstream(const T& t, const Allocator& a); // Since C++26
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);
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);
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
299 void str(const T& t); // Since C++26
302 template <class charT, class traits, class Allocator>
303 void swap(basic_stringstream<charT, traits, Allocator>& x,
304 basic_stringstream<charT, traits, Allocator>& y);
306 typedef basic_stringstream<char> stringstream;
307 typedef basic_stringstream<wchar_t> wstringstream;
317 #if _LIBCPP_HAS_LOCALIZATION
319 # include <__fwd/sstream.h>
320 # include <__ostream/basic_ostream.h>
321 # include <__type_traits/is_convertible.h>
322 # include <__utility/swap.h>
327 # include <string_view>
330 # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
331 # pragma GCC system_header
335 # include <__undef_macros>
337 _LIBCPP_BEGIN_NAMESPACE_STD
339 // Class template basic_stringbuf [stringbuf]
341 template <class _CharT, class _Traits, class _Allocator>
342 class _LIBCPP_TEMPLATE_VIS basic_stringbuf : public basic_streambuf<_CharT, _Traits> {
344 typedef _CharT char_type;
345 typedef _Traits traits_type;
346 typedef typename traits_type::int_type int_type;
347 typedef typename traits_type::pos_type pos_type;
348 typedef typename traits_type::off_type off_type;
349 typedef _Allocator allocator_type;
351 typedef basic_string<char_type, traits_type, allocator_type> string_type;
355 mutable char_type* __hm_;
356 ios_base::openmode __mode_;
357 _LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs();
358 _LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs);
361 // [stringbuf.cons] constructors:
362 _LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {
363 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't
367 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {
368 // it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't
372 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s,
373 ios_base::openmode __wch = ios_base::in | ios_base::out)
374 : __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) {
378 # if _LIBCPP_STD_VER >= 20
379 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a)
380 : basic_stringbuf(ios_base::in | ios_base::out, __a) {}
382 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a)
383 : __str_(__a), __hm_(nullptr), __mode_(__wch) {
387 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s,
388 ios_base::openmode __wch = ios_base::in | ios_base::out)
389 : __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) {
393 template <class _SAlloc>
394 _LIBCPP_HIDE_FROM_ABI
395 basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a)
396 : basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {}
398 template <class _SAlloc>
399 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(
400 const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a)
401 : __str_(__s, __a), __hm_(nullptr), __mode_(__wch) {
405 template <class _SAlloc>
406 requires(!is_same_v<_SAlloc, allocator_type>)
407 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s,
408 ios_base::openmode __wch = ios_base::in | ios_base::out)
409 : __str_(__s), __hm_(nullptr), __mode_(__wch) {
412 # endif // _LIBCPP_STD_VER >= 20
414 # if _LIBCPP_STD_VER >= 26
417 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
418 _LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const _Tp& __t,
419 ios_base::openmode __which = ios_base::in | ios_base::out)
420 : basic_stringbuf(__t, __which, _Allocator()) {}
423 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
424 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, const _Allocator& __a)
425 : basic_stringbuf(__t, ios_base::in | ios_base::out, __a) {}
428 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
429 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a)
430 : __hm_(nullptr), __mode_(__which) {
431 basic_string_view<_CharT, _Traits> __sv = __t;
432 __str_ = string_type(__sv, __a);
436 # endif // _LIBCPP_STD_VER >= 26
438 basic_stringbuf(const basic_stringbuf&) = delete;
439 basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); }
441 # if _LIBCPP_STD_VER >= 20
442 _LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a)
443 : basic_stringbuf(__rhs.__mode_, __a) {
444 __move_init(std::move(__rhs));
448 // [stringbuf.assign] Assign and swap:
449 basic_stringbuf& operator=(const basic_stringbuf&) = delete;
450 basic_stringbuf& operator=(basic_stringbuf&& __rhs);
451 void swap(basic_stringbuf& __rhs)
452 # if _LIBCPP_STD_VER >= 20
453 noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value ||
454 allocator_traits<allocator_type>::is_always_equal::value)
458 // [stringbuf.members] Member functions:
460 # if _LIBCPP_STD_VER >= 20
461 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); }
464 # if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
465 string_type str() const;
467 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return str(__str_.get_allocator()); }
469 _LIBCPP_HIDE_FROM_ABI string_type str() && {
470 const basic_string_view<_CharT, _Traits> __view = view();
471 typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data();
472 // In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator());
473 // But we need something that works in C++20 also.
474 string_type __result(std::move(__str_), __str_.get_allocator());
475 __result.resize(__pos + __view.size());
476 __result.erase(0, __pos);
480 # endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
482 # if _LIBCPP_STD_VER >= 20
483 template <class _SAlloc>
484 requires __is_allocator<_SAlloc>::value
485 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const {
486 return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa);
489 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept;
490 # endif // _LIBCPP_STD_VER >= 20
492 void str(const string_type& __s) {
497 # if _LIBCPP_STD_VER >= 20
498 template <class _SAlloc>
499 requires(!is_same_v<_SAlloc, allocator_type>)
500 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) {
505 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) {
506 __str_ = std::move(__s);
509 # endif // _LIBCPP_STD_VER >= 20
511 # if _LIBCPP_STD_VER >= 26
514 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
515 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) {
516 basic_string_view<_CharT, _Traits> __sv = __t;
521 # endif // _LIBCPP_STD_VER >= 26
524 // [stringbuf.virtuals] Overridden virtual functions:
525 int_type underflow() override;
526 int_type pbackfail(int_type __c = traits_type::eof()) override;
527 int_type overflow(int_type __c = traits_type::eof()) override;
529 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override;
530 _LIBCPP_HIDE_FROM_ABI_VIRTUAL
531 pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override {
532 return seekoff(__sp, ios_base::beg, __wch);
536 template <class _CharT, class _Traits, class _Allocator>
537 _LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) {
538 char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
539 ptrdiff_t __binp = -1;
540 ptrdiff_t __ninp = -1;
541 ptrdiff_t __einp = -1;
542 if (__rhs.eback() != nullptr) {
543 __binp = __rhs.eback() - __p;
544 __ninp = __rhs.gptr() - __p;
545 __einp = __rhs.egptr() - __p;
547 ptrdiff_t __bout = -1;
548 ptrdiff_t __nout = -1;
549 ptrdiff_t __eout = -1;
550 if (__rhs.pbase() != nullptr) {
551 __bout = __rhs.pbase() - __p;
552 __nout = __rhs.pptr() - __p;
553 __eout = __rhs.epptr() - __p;
555 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
556 __str_ = std::move(__rhs.__str_);
557 __p = const_cast<char_type*>(__str_.data());
559 this->setg(__p + __binp, __p + __ninp, __p + __einp);
561 this->setp(__p + __bout, __p + __eout);
562 this->__pbump(__nout);
564 __hm_ = __hm == -1 ? nullptr : __p + __hm;
565 __p = const_cast<char_type*>(__rhs.__str_.data());
566 __rhs.setg(__p, __p, __p);
567 __rhs.setp(__p, __p);
569 this->pubimbue(__rhs.getloc());
572 template <class _CharT, class _Traits, class _Allocator>
573 basic_stringbuf<_CharT, _Traits, _Allocator>&
574 basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) {
575 char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
576 ptrdiff_t __binp = -1;
577 ptrdiff_t __ninp = -1;
578 ptrdiff_t __einp = -1;
579 if (__rhs.eback() != nullptr) {
580 __binp = __rhs.eback() - __p;
581 __ninp = __rhs.gptr() - __p;
582 __einp = __rhs.egptr() - __p;
584 ptrdiff_t __bout = -1;
585 ptrdiff_t __nout = -1;
586 ptrdiff_t __eout = -1;
587 if (__rhs.pbase() != nullptr) {
588 __bout = __rhs.pbase() - __p;
589 __nout = __rhs.pptr() - __p;
590 __eout = __rhs.epptr() - __p;
592 ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
593 __str_ = std::move(__rhs.__str_);
594 __p = const_cast<char_type*>(__str_.data());
596 this->setg(__p + __binp, __p + __ninp, __p + __einp);
598 this->setg(nullptr, nullptr, nullptr);
600 this->setp(__p + __bout, __p + __eout);
601 this->__pbump(__nout);
603 this->setp(nullptr, nullptr);
605 __hm_ = __hm == -1 ? nullptr : __p + __hm;
606 __mode_ = __rhs.__mode_;
607 __p = const_cast<char_type*>(__rhs.__str_.data());
608 __rhs.setg(__p, __p, __p);
609 __rhs.setp(__p, __p);
611 this->pubimbue(__rhs.getloc());
615 template <class _CharT, class _Traits, class _Allocator>
616 void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs)
617 # if _LIBCPP_STD_VER >= 20
618 noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value ||
619 allocator_traits<_Allocator>::is_always_equal::value)
622 char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
623 ptrdiff_t __rbinp = -1;
624 ptrdiff_t __rninp = -1;
625 ptrdiff_t __reinp = -1;
626 if (__rhs.eback() != nullptr) {
627 __rbinp = __rhs.eback() - __p;
628 __rninp = __rhs.gptr() - __p;
629 __reinp = __rhs.egptr() - __p;
631 ptrdiff_t __rbout = -1;
632 ptrdiff_t __rnout = -1;
633 ptrdiff_t __reout = -1;
634 if (__rhs.pbase() != nullptr) {
635 __rbout = __rhs.pbase() - __p;
636 __rnout = __rhs.pptr() - __p;
637 __reout = __rhs.epptr() - __p;
639 ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
640 __p = const_cast<char_type*>(__str_.data());
641 ptrdiff_t __lbinp = -1;
642 ptrdiff_t __lninp = -1;
643 ptrdiff_t __leinp = -1;
644 if (this->eback() != nullptr) {
645 __lbinp = this->eback() - __p;
646 __lninp = this->gptr() - __p;
647 __leinp = this->egptr() - __p;
649 ptrdiff_t __lbout = -1;
650 ptrdiff_t __lnout = -1;
651 ptrdiff_t __leout = -1;
652 if (this->pbase() != nullptr) {
653 __lbout = this->pbase() - __p;
654 __lnout = this->pptr() - __p;
655 __leout = this->epptr() - __p;
657 ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p;
658 std::swap(__mode_, __rhs.__mode_);
659 __str_.swap(__rhs.__str_);
660 __p = const_cast<char_type*>(__str_.data());
662 this->setg(__p + __rbinp, __p + __rninp, __p + __reinp);
664 this->setg(nullptr, nullptr, nullptr);
666 this->setp(__p + __rbout, __p + __reout);
667 this->__pbump(__rnout);
669 this->setp(nullptr, nullptr);
670 __hm_ = __rhm == -1 ? nullptr : __p + __rhm;
671 __p = const_cast<char_type*>(__rhs.__str_.data());
673 __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp);
675 __rhs.setg(nullptr, nullptr, nullptr);
677 __rhs.setp(__p + __lbout, __p + __leout);
678 __rhs.__pbump(__lnout);
680 __rhs.setp(nullptr, nullptr);
681 __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm;
682 locale __tl = __rhs.getloc();
683 __rhs.pubimbue(this->getloc());
684 this->pubimbue(__tl);
687 template <class _CharT, class _Traits, class _Allocator>
688 inline _LIBCPP_HIDE_FROM_ABI void
689 swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y)
690 # if _LIBCPP_STD_VER >= 20
691 noexcept(noexcept(__x.swap(__y)))
697 # if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
698 template <class _CharT, class _Traits, class _Allocator>
699 basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const {
700 if (__mode_ & ios_base::out) {
701 if (__hm_ < this->pptr())
702 __hm_ = this->pptr();
703 return string_type(this->pbase(), __hm_, __str_.get_allocator());
704 } else if (__mode_ & ios_base::in)
705 return string_type(this->eback(), this->egptr(), __str_.get_allocator());
706 return string_type(__str_.get_allocator());
708 # endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
710 template <class _CharT, class _Traits, class _Allocator>
711 _LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() {
713 char_type* __data = const_cast<char_type*>(__str_.data());
714 typename string_type::size_type __sz = __str_.size();
715 if (__mode_ & ios_base::in) {
716 __hm_ = __data + __sz;
717 this->setg(__data, __data, __hm_);
719 if (__mode_ & ios_base::out) {
720 __hm_ = __data + __sz;
721 __str_.resize(__str_.capacity());
722 this->setp(__data, __data + __str_.size());
723 if (__mode_ & (ios_base::app | ios_base::ate)) {
724 while (__sz > INT_MAX) {
725 this->pbump(INT_MAX);
734 # if _LIBCPP_STD_VER >= 20
735 template <class _CharT, class _Traits, class _Allocator>
736 _LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits>
737 basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept {
738 if (__mode_ & ios_base::out) {
739 if (__hm_ < this->pptr())
740 __hm_ = this->pptr();
741 return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_);
742 } else if (__mode_ & ios_base::in)
743 return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr());
744 return basic_string_view<_CharT, _Traits>();
746 # endif // _LIBCPP_STD_VER >= 20
748 template <class _CharT, class _Traits, class _Allocator>
749 typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
750 basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() {
751 if (__hm_ < this->pptr())
752 __hm_ = this->pptr();
753 if (__mode_ & ios_base::in) {
754 if (this->egptr() < __hm_)
755 this->setg(this->eback(), this->gptr(), __hm_);
756 if (this->gptr() < this->egptr())
757 return traits_type::to_int_type(*this->gptr());
759 return traits_type::eof();
762 template <class _CharT, class _Traits, class _Allocator>
763 typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
764 basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) {
765 if (__hm_ < this->pptr())
766 __hm_ = this->pptr();
767 if (this->eback() < this->gptr()) {
768 if (traits_type::eq_int_type(__c, traits_type::eof())) {
769 this->setg(this->eback(), this->gptr() - 1, __hm_);
770 return traits_type::not_eof(__c);
772 if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) {
773 this->setg(this->eback(), this->gptr() - 1, __hm_);
774 *this->gptr() = traits_type::to_char_type(__c);
778 return traits_type::eof();
781 template <class _CharT, class _Traits, class _Allocator>
782 typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
783 basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) {
784 if (!traits_type::eq_int_type(__c, traits_type::eof())) {
785 ptrdiff_t __ninp = this->gptr() - this->eback();
786 if (this->pptr() == this->epptr()) {
787 if (!(__mode_ & ios_base::out))
788 return traits_type::eof();
789 # if _LIBCPP_HAS_EXCEPTIONS
791 # endif // _LIBCPP_HAS_EXCEPTIONS
792 ptrdiff_t __nout = this->pptr() - this->pbase();
793 ptrdiff_t __hm = __hm_ - this->pbase();
794 __str_.push_back(char_type());
795 __str_.resize(__str_.capacity());
796 char_type* __p = const_cast<char_type*>(__str_.data());
797 this->setp(__p, __p + __str_.size());
798 this->__pbump(__nout);
799 __hm_ = this->pbase() + __hm;
800 # if _LIBCPP_HAS_EXCEPTIONS
802 return traits_type::eof();
804 # endif // _LIBCPP_HAS_EXCEPTIONS
806 __hm_ = std::max(this->pptr() + 1, __hm_);
807 if (__mode_ & ios_base::in) {
808 char_type* __p = const_cast<char_type*>(__str_.data());
809 this->setg(__p, __p + __ninp, __hm_);
811 return this->sputc(traits_type::to_char_type(__c));
813 return traits_type::not_eof(__c);
816 template <class _CharT, class _Traits, class _Allocator>
817 typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(
818 off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) {
819 if (__hm_ < this->pptr())
820 __hm_ = this->pptr();
821 if ((__wch & (ios_base::in | ios_base::out)) == 0)
823 if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur)
825 const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data();
832 if (__wch & ios_base::in)
833 __noff = this->gptr() - this->eback();
835 __noff = this->pptr() - this->pbase();
844 if (__noff < 0 || __hm < __noff)
847 if ((__wch & ios_base::in) && this->gptr() == nullptr)
849 if ((__wch & ios_base::out) && this->pptr() == nullptr)
852 if (__wch & ios_base::in)
853 this->setg(this->eback(), this->eback() + __noff, __hm_);
854 if (__wch & ios_base::out) {
855 this->setp(this->pbase(), this->epptr());
856 this->__pbump(__noff);
858 return pos_type(__noff);
861 // Class template basic_istringstream [istringstream]
863 template <class _CharT, class _Traits, class _Allocator>
864 class _LIBCPP_TEMPLATE_VIS basic_istringstream : public basic_istream<_CharT, _Traits> {
866 typedef _CharT char_type;
867 typedef _Traits traits_type;
868 typedef typename traits_type::int_type int_type;
869 typedef typename traits_type::pos_type pos_type;
870 typedef typename traits_type::off_type off_type;
871 typedef _Allocator allocator_type;
873 typedef basic_string<char_type, traits_type, allocator_type> string_type;
876 basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
879 // [istringstream.cons] Constructors:
880 _LIBCPP_HIDE_FROM_ABI basic_istringstream()
881 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in) {}
883 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch)
884 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in) {}
886 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in)
887 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {}
889 # if _LIBCPP_STD_VER >= 20
890 _LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a)
891 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {}
893 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in)
894 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {}
896 template <class _SAlloc>
897 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a)
898 : basic_istringstream(__s, ios_base::in, __a) {}
900 template <class _SAlloc>
901 _LIBCPP_HIDE_FROM_ABI basic_istringstream(
902 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a)
903 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {}
905 template <class _SAlloc>
906 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s,
907 ios_base::openmode __wch = ios_base::in)
908 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {}
909 # endif // _LIBCPP_STD_VER >= 20
911 # if _LIBCPP_STD_VER >= 26
914 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
915 _LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const _Tp& __t, ios_base::openmode __which = ios_base::in)
916 : basic_istringstream(__t, __which, _Allocator()) {}
919 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
920 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, const _Allocator& __a)
921 : basic_istringstream(__t, ios_base::in, __a) {}
924 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
925 _LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a)
926 : basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::in, __a) {}
928 # endif // _LIBCPP_STD_VER >= 26
930 basic_istringstream(const basic_istringstream&) = delete;
931 _LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs)
932 : basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {
933 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));
936 // [istringstream.assign] Assign and swap:
937 basic_istringstream& operator=(const basic_istringstream&) = delete;
938 basic_istringstream& operator=(basic_istringstream&& __rhs) {
939 basic_istream<char_type, traits_type>::operator=(std::move(__rhs));
940 __sb_ = std::move(__rhs.__sb_);
943 _LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) {
944 basic_istream<char_type, traits_type>::swap(__rhs);
945 __sb_.swap(__rhs.__sb_);
948 // [istringstream.members] Member functions:
949 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
950 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));
953 # if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
954 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }
956 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); }
958 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); }
961 # if _LIBCPP_STD_VER >= 20
962 template <class _SAlloc>
963 requires __is_allocator<_SAlloc>::value
964 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const {
965 return __sb_.str(__sa);
968 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); }
969 # endif // _LIBCPP_STD_VER >= 20
971 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }
973 # if _LIBCPP_STD_VER >= 20
974 template <class _SAlloc>
975 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) {
979 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); }
980 # endif // _LIBCPP_STD_VER >= 20
982 # if _LIBCPP_STD_VER >= 26
984 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
985 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) {
988 # endif // _LIBCPP_STD_VER >= 26
991 template <class _CharT, class _Traits, class _Allocator>
992 inline _LIBCPP_HIDE_FROM_ABI void
993 swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) {
997 // Class template basic_ostringstream [ostringstream]
999 template <class _CharT, class _Traits, class _Allocator>
1000 class _LIBCPP_TEMPLATE_VIS basic_ostringstream : public basic_ostream<_CharT, _Traits> {
1002 typedef _CharT char_type;
1003 typedef _Traits traits_type;
1004 typedef typename traits_type::int_type int_type;
1005 typedef typename traits_type::pos_type pos_type;
1006 typedef typename traits_type::off_type off_type;
1007 typedef _Allocator allocator_type;
1009 typedef basic_string<char_type, traits_type, allocator_type> string_type;
1012 basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
1015 // [ostringstream.cons] Constructors:
1016 _LIBCPP_HIDE_FROM_ABI basic_ostringstream()
1017 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::out) {}
1019 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(ios_base::openmode __wch)
1020 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out) {}
1022 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const string_type& __s, ios_base::openmode __wch = ios_base::out)
1023 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {}
1025 # if _LIBCPP_STD_VER >= 20
1026 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(ios_base::openmode __wch, const _Allocator& __a)
1027 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::out, __a) {}
1029 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(string_type&& __s, ios_base::openmode __wch = ios_base::out)
1030 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::out) {}
1032 template <class _SAlloc>
1033 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a)
1034 : basic_ostringstream(__s, ios_base::out, __a) {}
1036 template <class _SAlloc>
1037 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(
1038 const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a)
1039 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out, __a) {}
1041 template <class _SAlloc>
1042 requires(!is_same_v<_SAlloc, allocator_type>)
1043 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s,
1044 ios_base::openmode __wch = ios_base::out)
1045 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::out) {}
1046 # endif // _LIBCPP_STD_VER >= 20
1048 # if _LIBCPP_STD_VER >= 26
1050 template <class _Tp>
1051 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1052 _LIBCPP_HIDE_FROM_ABI explicit basic_ostringstream(const _Tp& __t, ios_base::openmode __which = ios_base::out)
1053 : basic_ostringstream(__t, __which | ios_base::out, _Allocator()) {}
1055 template <class _Tp>
1056 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1057 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, const _Allocator& __a)
1058 : basic_ostringstream(__t, ios_base::out, __a) {}
1060 template <class _Tp>
1061 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1062 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a)
1063 : basic_ostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::out, __a) {}
1065 # endif // _LIBCPP_STD_VER >= 26
1067 basic_ostringstream(const basic_ostringstream&) = delete;
1068 _LIBCPP_HIDE_FROM_ABI basic_ostringstream(basic_ostringstream&& __rhs)
1069 : basic_ostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {
1070 basic_ostream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));
1073 // [ostringstream.assign] Assign and swap:
1074 basic_ostringstream& operator=(const basic_ostringstream&) = delete;
1075 basic_ostringstream& operator=(basic_ostringstream&& __rhs) {
1076 basic_ostream<char_type, traits_type>::operator=(std::move(__rhs));
1077 __sb_ = std::move(__rhs.__sb_);
1081 _LIBCPP_HIDE_FROM_ABI void swap(basic_ostringstream& __rhs) {
1082 basic_ostream<char_type, traits_type>::swap(__rhs);
1083 __sb_.swap(__rhs.__sb_);
1086 // [ostringstream.members] Member functions:
1087 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
1088 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));
1091 # if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
1092 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }
1094 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); }
1096 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); }
1099 # if _LIBCPP_STD_VER >= 20
1100 template <class _SAlloc>
1101 requires __is_allocator<_SAlloc>::value
1102 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const {
1103 return __sb_.str(__sa);
1106 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); }
1107 # endif // _LIBCPP_STD_VER >= 20
1109 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }
1111 # if _LIBCPP_STD_VER >= 20
1112 template <class _SAlloc>
1113 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) {
1117 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); }
1118 # endif // _LIBCPP_STD_VER >= 20
1120 # if _LIBCPP_STD_VER >= 26
1121 template <class _Tp>
1122 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1123 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) {
1126 # endif // _LIBCPP_STD_VER >= 26
1129 template <class _CharT, class _Traits, class _Allocator>
1130 inline _LIBCPP_HIDE_FROM_ABI void
1131 swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, basic_ostringstream<_CharT, _Traits, _Allocator>& __y) {
1135 // Class template basic_stringstream [stringstream]
1137 template <class _CharT, class _Traits, class _Allocator>
1138 class _LIBCPP_TEMPLATE_VIS basic_stringstream : public basic_iostream<_CharT, _Traits> {
1140 typedef _CharT char_type;
1141 typedef _Traits traits_type;
1142 typedef typename traits_type::int_type int_type;
1143 typedef typename traits_type::pos_type pos_type;
1144 typedef typename traits_type::off_type off_type;
1145 typedef _Allocator allocator_type;
1147 typedef basic_string<char_type, traits_type, allocator_type> string_type;
1150 basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
1153 // [stringstream.cons] constructors
1154 _LIBCPP_HIDE_FROM_ABI basic_stringstream()
1155 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in | ios_base::out) {}
1157 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(ios_base::openmode __wch)
1158 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch) {}
1160 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const string_type& __s,
1161 ios_base::openmode __wch = ios_base::in | ios_base::out)
1162 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {}
1164 # if _LIBCPP_STD_VER >= 20
1165 _LIBCPP_HIDE_FROM_ABI basic_stringstream(ios_base::openmode __wch, const _Allocator& __a)
1166 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch, __a) {}
1168 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(string_type&& __s,
1169 ios_base::openmode __wch = ios_base::out | ios_base::in)
1170 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch) {}
1172 template <class _SAlloc>
1173 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a)
1174 : basic_stringstream(__s, ios_base::out | ios_base::in, __a) {}
1176 template <class _SAlloc>
1177 _LIBCPP_HIDE_FROM_ABI
1178 basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a)
1179 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch, __a) {}
1181 template <class _SAlloc>
1182 requires(!is_same_v<_SAlloc, allocator_type>)
1183 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s,
1184 ios_base::openmode __wch = ios_base::out | ios_base::in)
1185 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch) {}
1186 # endif // _LIBCPP_STD_VER >= 20
1188 # if _LIBCPP_STD_VER >= 26
1190 template <class _Tp>
1191 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1192 _LIBCPP_HIDE_FROM_ABI explicit basic_stringstream(const _Tp& __t,
1193 ios_base::openmode __which = ios_base::out | ios_base::in)
1194 : basic_stringstream(__t, __which, _Allocator()) {}
1196 template <class _Tp>
1197 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1198 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, const _Allocator& __a)
1199 : basic_stringstream(__t, ios_base::out | ios_base::in, __a) {}
1201 template <class _Tp>
1202 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1203 _LIBCPP_HIDE_FROM_ABI basic_stringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a)
1204 : basic_iostream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which, __a) {}
1206 # endif // _LIBCPP_STD_VER >= 26
1208 basic_stringstream(const basic_stringstream&) = delete;
1209 _LIBCPP_HIDE_FROM_ABI basic_stringstream(basic_stringstream&& __rhs)
1210 : basic_iostream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {
1211 basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));
1214 // [stringstream.assign] Assign and swap:
1215 basic_stringstream& operator=(const basic_stringstream&) = delete;
1216 basic_stringstream& operator=(basic_stringstream&& __rhs) {
1217 basic_iostream<char_type, traits_type>::operator=(std::move(__rhs));
1218 __sb_ = std::move(__rhs.__sb_);
1221 _LIBCPP_HIDE_FROM_ABI void swap(basic_stringstream& __rhs) {
1222 basic_iostream<char_type, traits_type>::swap(__rhs);
1223 __sb_.swap(__rhs.__sb_);
1226 // [stringstream.members] Member functions:
1227 _LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
1228 return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));
1231 # if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
1232 _LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }
1234 _LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); }
1236 _LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); }
1239 # if _LIBCPP_STD_VER >= 20
1240 template <class _SAlloc>
1241 requires __is_allocator<_SAlloc>::value
1242 _LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const {
1243 return __sb_.str(__sa);
1246 _LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); }
1247 # endif // _LIBCPP_STD_VER >= 20
1249 _LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }
1251 # if _LIBCPP_STD_VER >= 20
1252 template <class _SAlloc>
1253 _LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) {
1257 _LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); }
1258 # endif // _LIBCPP_STD_VER >= 20
1260 # if _LIBCPP_STD_VER >= 26
1261 template <class _Tp>
1262 requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
1263 _LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) {
1266 # endif // _LIBCPP_STD_VER >= 26
1269 template <class _CharT, class _Traits, class _Allocator>
1270 inline _LIBCPP_HIDE_FROM_ABI void
1271 swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, basic_stringstream<_CharT, _Traits, _Allocator>& __y) {
1275 # if _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1
1276 extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringbuf<char>;
1277 extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_stringstream<char>;
1278 extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostringstream<char>;
1279 extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istringstream<char>;
1282 _LIBCPP_END_NAMESPACE_STD
1286 #endif // _LIBCPP_HAS_LOCALIZATION
1288 #if _LIBCPP_STD_VER <= 20 && !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES)
1290 # include <type_traits>
1293 #endif // _LIBCPP_SSTREAM