libstdc++
locale_facets.tcc
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1// Locale support -*- C++ -*-
2
3// Copyright (C) 1997-2025 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file bits/locale_facets.tcc
26 * This is an internal header file, included by other library headers.
27 * Do not attempt to use it directly. @headername{locale}
28 */
29
30#ifndef _LOCALE_FACETS_TCC
31#define _LOCALE_FACETS_TCC 1
32
33#ifdef _GLIBCXX_SYSHDR
34#pragma GCC system_header
35#endif
36#pragma GCC diagnostic push
37#pragma GCC diagnostic ignored "-Wc++11-extensions" // extern template
38
39namespace std _GLIBCXX_VISIBILITY(default)
40{
41_GLIBCXX_BEGIN_NAMESPACE_VERSION
42
43 // Routine to access a cache for the facet. If the cache didn't
44 // exist before, it gets constructed on the fly.
45 template<typename _Facet>
46 struct __use_cache
47 {
48 const _Facet*
49 operator() (const locale& __loc) const;
50 };
51
52 // Specializations.
53 template<typename _CharT>
54 struct __use_cache<__numpunct_cache<_CharT> >
55 {
56 const __numpunct_cache<_CharT>*
57 operator() (const locale& __loc) const
58 {
59 const size_t __i = numpunct<_CharT>::id._M_id();
60 const locale::facet** __caches = __loc._M_impl->_M_caches;
61 if (!__caches[__i])
62 {
63 __numpunct_cache<_CharT>* __tmp = 0;
64 __try
65 {
66 __tmp = new __numpunct_cache<_CharT>;
67 __tmp->_M_cache(__loc);
68 }
69 __catch(...)
70 {
71 delete __tmp;
72 __throw_exception_again;
73 }
74 __loc._M_impl->_M_install_cache(__tmp, __i);
75 }
76 return static_cast<const __numpunct_cache<_CharT>*>(__caches[__i]);
77 }
78 };
79
80 template<typename _CharT>
81 void
82 __numpunct_cache<_CharT>::_M_cache(const locale& __loc)
83 {
84 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
85
86 char* __grouping = 0;
87 _CharT* __truename = 0;
88 _CharT* __falsename = 0;
89 __try
90 {
91 const string& __g = __np.grouping();
92 _M_grouping_size = __g.size();
93 __grouping = new char[_M_grouping_size];
94 __g.copy(__grouping, _M_grouping_size);
95 _M_use_grouping = (_M_grouping_size
96 && static_cast<signed char>(__grouping[0]) > 0
97 && (__grouping[0]
98 != __gnu_cxx::__numeric_traits<char>::__max));
99
100 const basic_string<_CharT>& __tn = __np.truename();
101 _M_truename_size = __tn.size();
102 __truename = new _CharT[_M_truename_size];
103 __tn.copy(__truename, _M_truename_size);
104
105 const basic_string<_CharT>& __fn = __np.falsename();
106 _M_falsename_size = __fn.size();
107 __falsename = new _CharT[_M_falsename_size];
108 __fn.copy(__falsename, _M_falsename_size);
109
110 _M_decimal_point = __np.decimal_point();
111 _M_thousands_sep = __np.thousands_sep();
112
113 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc);
114 __ct.widen(__num_base::_S_atoms_out,
115 __num_base::_S_atoms_out
116 + __num_base::_S_oend, _M_atoms_out);
117 __ct.widen(__num_base::_S_atoms_in,
118 __num_base::_S_atoms_in
119 + __num_base::_S_iend, _M_atoms_in);
120
121 _M_grouping = __grouping;
122 _M_truename = __truename;
123 _M_falsename = __falsename;
124 _M_allocated = true;
125 }
126 __catch(...)
127 {
128 delete [] __grouping;
129 delete [] __truename;
130 delete [] __falsename;
131 __throw_exception_again;
132 }
133 }
134
135 // Used by both numeric and monetary facets.
136 // Check to make sure that the __grouping_tmp string constructed in
137 // money_get or num_get matches the canonical grouping for a given
138 // locale.
139 // __grouping_tmp is parsed L to R
140 // 1,222,444 == __grouping_tmp of "\1\3\3"
141 // __grouping is parsed R to L
142 // 1,222,444 == __grouping of "\3" == "\3\3\3"
143 _GLIBCXX_PURE bool
144 __verify_grouping(const char* __grouping, size_t __grouping_size,
145 const string& __grouping_tmp) throw ();
146
147_GLIBCXX_BEGIN_NAMESPACE_LDBL
148
149 template<typename _CharT, typename _InIter>
150 _GLIBCXX_DEFAULT_ABI_TAG
151 _InIter
152 num_get<_CharT, _InIter>::
153 _M_extract_float(_InIter __beg, _InIter __end, ios_base& __io,
154 ios_base::iostate& __err, string& __xtrc) const
155 {
156 typedef char_traits<_CharT> __traits_type;
157 typedef __numpunct_cache<_CharT> __cache_type;
158 __use_cache<__cache_type> __uc;
159 const locale& __loc = __io._M_getloc();
160 const __cache_type* __lc = __uc(__loc);
161 const _CharT* __lit = __lc->_M_atoms_in;
162 char_type __c = char_type();
163
164 // True if __beg becomes equal to __end.
165 bool __testeof = __beg == __end;
166
167 // First check for sign.
168 if (!__testeof)
169 {
170 __c = *__beg;
171 const bool __plus = __c == __lit[__num_base::_S_iplus];
172 if ((__plus || __c == __lit[__num_base::_S_iminus])
173 && !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
174 && !(__c == __lc->_M_decimal_point))
175 {
176 __xtrc += __plus ? '+' : '-';
177 if (++__beg != __end)
178 __c = *__beg;
179 else
180 __testeof = true;
181 }
182 }
183
184 // Next, look for leading zeros.
185 bool __found_mantissa = false;
186 int __sep_pos = 0;
187 while (!__testeof)
188 {
189 if ((__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
190 || __c == __lc->_M_decimal_point)
191 break;
192 else if (__c == __lit[__num_base::_S_izero])
193 {
194 if (!__found_mantissa)
195 {
196 __xtrc += '0';
197 __found_mantissa = true;
198 }
199 ++__sep_pos;
200
201 if (++__beg != __end)
202 __c = *__beg;
203 else
204 __testeof = true;
205 }
206 else
207 break;
208 }
209
210 // Only need acceptable digits for floating point numbers.
211 bool __found_dec = false;
212 bool __found_sci = false;
213 string __found_grouping;
214 if (__lc->_M_use_grouping)
215 __found_grouping.reserve(32);
216 const char_type* __lit_zero = __lit + __num_base::_S_izero;
217
218 if (!__lc->_M_allocated)
219 // "C" locale
220 while (!__testeof)
221 {
222 const int __digit = _M_find(__lit_zero, 10, __c);
223 if (__digit != -1)
224 {
225 __xtrc += '0' + __digit;
226 __found_mantissa = true;
227 }
228 else if (__c == __lc->_M_decimal_point
229 && !__found_dec && !__found_sci)
230 {
231 __xtrc += '.';
232 __found_dec = true;
233 }
234 else if ((__c == __lit[__num_base::_S_ie]
235 || __c == __lit[__num_base::_S_iE])
236 && !__found_sci && __found_mantissa)
237 {
238 // Scientific notation.
239 __xtrc += 'e';
240 __found_sci = true;
241
242 // Remove optional plus or minus sign, if they exist.
243 if (++__beg != __end)
244 {
245 __c = *__beg;
246 const bool __plus = __c == __lit[__num_base::_S_iplus];
247 if (__plus || __c == __lit[__num_base::_S_iminus])
248 __xtrc += __plus ? '+' : '-';
249 else
250 continue;
251 }
252 else
253 {
254 __testeof = true;
255 break;
256 }
257 }
258 else
259 break;
260
261 if (++__beg != __end)
262 __c = *__beg;
263 else
264 __testeof = true;
265 }
266 else
267 while (!__testeof)
268 {
269 // According to 22.2.2.1.2, p8-9, first look for thousands_sep
270 // and decimal_point.
271 if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
272 {
273 if (!__found_dec && !__found_sci)
274 {
275 // NB: Thousands separator at the beginning of a string
276 // is a no-no, as is two consecutive thousands separators.
277 if (__sep_pos)
278 {
279 __found_grouping += static_cast<char>(__sep_pos);
280 __sep_pos = 0;
281 }
282 else
283 {
284 // NB: __convert_to_v will not assign __v and will
285 // set the failbit.
286 __xtrc.clear();
287 break;
288 }
289 }
290 else
291 break;
292 }
293 else if (__c == __lc->_M_decimal_point)
294 {
295 if (!__found_dec && !__found_sci)
296 {
297 // If no grouping chars are seen, no grouping check
298 // is applied. Therefore __found_grouping is adjusted
299 // only if decimal_point comes after some thousands_sep.
300 if (__found_grouping.size())
301 __found_grouping += static_cast<char>(__sep_pos);
302 __xtrc += '.';
303 __found_dec = true;
304 }
305 else
306 break;
307 }
308 else
309 {
310 const char_type* __q =
311 __traits_type::find(__lit_zero, 10, __c);
312 if (__q)
313 {
314 __xtrc += '0' + (__q - __lit_zero);
315 __found_mantissa = true;
316 ++__sep_pos;
317 }
318 else if ((__c == __lit[__num_base::_S_ie]
319 || __c == __lit[__num_base::_S_iE])
320 && !__found_sci && __found_mantissa)
321 {
322 // Scientific notation.
323 if (__found_grouping.size() && !__found_dec)
324 __found_grouping += static_cast<char>(__sep_pos);
325 __xtrc += 'e';
326 __found_sci = true;
327
328 // Remove optional plus or minus sign, if they exist.
329 if (++__beg != __end)
330 {
331 __c = *__beg;
332 const bool __plus = __c == __lit[__num_base::_S_iplus];
333 if ((__plus || __c == __lit[__num_base::_S_iminus])
334 && !(__lc->_M_use_grouping
335 && __c == __lc->_M_thousands_sep)
336 && !(__c == __lc->_M_decimal_point))
337 __xtrc += __plus ? '+' : '-';
338 else
339 continue;
340 }
341 else
342 {
343 __testeof = true;
344 break;
345 }
346 }
347 else
348 break;
349 }
350
351 if (++__beg != __end)
352 __c = *__beg;
353 else
354 __testeof = true;
355 }
356
357 // Digit grouping is checked. If grouping and found_grouping don't
358 // match, then get very very upset, and set failbit.
359 if (__found_grouping.size())
360 {
361 // Add the ending grouping if a decimal or 'e'/'E' wasn't found.
362 if (!__found_dec && !__found_sci)
363 __found_grouping += static_cast<char>(__sep_pos);
364
365 if (!std::__verify_grouping(__lc->_M_grouping,
366 __lc->_M_grouping_size,
367 __found_grouping))
368 __err = ios_base::failbit;
369 }
370
371 return __beg;
372 }
373
374 template<typename _CharT, typename _InIter>
375 template<typename _ValueT>
376 _GLIBCXX_DEFAULT_ABI_TAG
377 _InIter
378 num_get<_CharT, _InIter>::
379 _M_extract_int(_InIter __beg, _InIter __end, ios_base& __io,
380 ios_base::iostate& __err, _ValueT& __v) const
381 {
382 typedef char_traits<_CharT> __traits_type;
383 using __gnu_cxx::__add_unsigned;
384 typedef typename __add_unsigned<_ValueT>::__type __unsigned_type;
385 typedef __numpunct_cache<_CharT> __cache_type;
386 __use_cache<__cache_type> __uc;
387 const locale& __loc = __io._M_getloc();
388 const __cache_type* __lc = __uc(__loc);
389 const _CharT* __lit = __lc->_M_atoms_in;
390 char_type __c = char_type();
391
392 // NB: Iff __basefield == 0, __base can change based on contents.
393 const ios_base::fmtflags __basefield = __io.flags()
394 & ios_base::basefield;
395 const bool __oct = __basefield == ios_base::oct;
396 int __base = __oct ? 8 : (__basefield == ios_base::hex ? 16 : 10);
397
398 // True if __beg becomes equal to __end.
399 bool __testeof = __beg == __end;
400
401 // First check for sign.
402 bool __negative = false;
403 if (!__testeof)
404 {
405 __c = *__beg;
406 __negative = __c == __lit[__num_base::_S_iminus];
407 if ((__negative || __c == __lit[__num_base::_S_iplus])
408 && !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
409 && !(__c == __lc->_M_decimal_point))
410 {
411 if (++__beg != __end)
412 __c = *__beg;
413 else
414 __testeof = true;
415 }
416 }
417
418 // Next, look for leading zeros and check required digits
419 // for base formats.
420 bool __found_zero = false;
421 int __sep_pos = 0;
422 while (!__testeof)
423 {
424 if ((__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
425 || __c == __lc->_M_decimal_point)
426 break;
427 else if (__c == __lit[__num_base::_S_izero]
428 && (!__found_zero || __base == 10))
429 {
430 __found_zero = true;
431 ++__sep_pos;
432 if (__basefield == 0)
433 __base = 8;
434 if (__base == 8)
435 __sep_pos = 0;
436 }
437 else if (__found_zero
438 && (__c == __lit[__num_base::_S_ix]
439 || __c == __lit[__num_base::_S_iX]))
440 {
441 if (__basefield == 0)
442 __base = 16;
443 if (__base == 16)
444 {
445 __found_zero = false;
446 __sep_pos = 0;
447 }
448 else
449 break;
450 }
451 else
452 break;
453
454 if (++__beg != __end)
455 {
456 __c = *__beg;
457 if (!__found_zero)
458 break;
459 }
460 else
461 __testeof = true;
462 }
463
464 // At this point, base is determined. If not hex, only allow
465 // base digits as valid input.
466 const size_t __len = (__base == 16 ? __num_base::_S_iend
467 - __num_base::_S_izero : __base);
468
469 // Extract.
470 typedef __gnu_cxx::__numeric_traits<_ValueT> __num_traits;
471 string __found_grouping;
472 if (__lc->_M_use_grouping)
473 __found_grouping.reserve(32);
474 bool __testfail = false;
475 bool __testoverflow = false;
476 const __unsigned_type __max =
477 (__negative && __num_traits::__is_signed)
478 ? -static_cast<__unsigned_type>(__num_traits::__min)
479 : __num_traits::__max;
480 const __unsigned_type __smax = __max / __base;
481 __unsigned_type __result = 0;
482 int __digit = 0;
483 const char_type* __lit_zero = __lit + __num_base::_S_izero;
484
485 if (!__lc->_M_allocated)
486 // "C" locale
487 while (!__testeof)
488 {
489 __digit = _M_find(__lit_zero, __len, __c);
490 if (__digit == -1)
491 break;
492
493 if (__result > __smax)
494 __testoverflow = true;
495 else
496 {
497 __result *= __base;
498 __testoverflow |= __result > __max - __digit;
499 __result += __digit;
500 ++__sep_pos;
501 }
502
503 if (++__beg != __end)
504 __c = *__beg;
505 else
506 __testeof = true;
507 }
508 else
509 while (!__testeof)
510 {
511 // According to 22.2.2.1.2, p8-9, first look for thousands_sep
512 // and decimal_point.
513 if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
514 {
515 // NB: Thousands separator at the beginning of a string
516 // is a no-no, as is two consecutive thousands separators.
517 if (__sep_pos)
518 {
519 __found_grouping += static_cast<char>(__sep_pos);
520 __sep_pos = 0;
521 }
522 else
523 {
524 __testfail = true;
525 break;
526 }
527 }
528 else if (__c == __lc->_M_decimal_point)
529 break;
530 else
531 {
532 const char_type* __q =
533 __traits_type::find(__lit_zero, __len, __c);
534 if (!__q)
535 break;
536
537 __digit = __q - __lit_zero;
538 if (__digit > 15)
539 __digit -= 6;
540 if (__result > __smax)
541 __testoverflow = true;
542 else
543 {
544 __result *= __base;
545 __testoverflow |= __result > __max - __digit;
546 __result += __digit;
547 ++__sep_pos;
548 }
549 }
550
551 if (++__beg != __end)
552 __c = *__beg;
553 else
554 __testeof = true;
555 }
556
557 // Digit grouping is checked. If grouping and found_grouping don't
558 // match, then get very very upset, and set failbit.
559 if (__found_grouping.size())
560 {
561 // Add the ending grouping.
562 __found_grouping += static_cast<char>(__sep_pos);
563
564 if (!std::__verify_grouping(__lc->_M_grouping,
565 __lc->_M_grouping_size,
566 __found_grouping))
567 __err = ios_base::failbit;
568 }
569
570 // _GLIBCXX_RESOLVE_LIB_DEFECTS
571 // 23. Num_get overflow result.
572 if ((!__sep_pos && !__found_zero && !__found_grouping.size())
573 || __testfail)
574 {
575 __v = 0;
576 __err = ios_base::failbit;
577 }
578 else if (__testoverflow)
579 {
580 if (__negative && __num_traits::__is_signed)
581 __v = __num_traits::__min;
582 else
583 __v = __num_traits::__max;
584 __err = ios_base::failbit;
585 }
586 else
587 __v = __negative ? -__result : __result;
588
589 if (__testeof)
590 __err |= ios_base::eofbit;
591 return __beg;
592 }
593
594 // _GLIBCXX_RESOLVE_LIB_DEFECTS
595 // 17. Bad bool parsing
596 template<typename _CharT, typename _InIter>
597 _InIter
598 num_get<_CharT, _InIter>::
599 do_get(iter_type __beg, iter_type __end, ios_base& __io,
600 ios_base::iostate& __err, bool& __v) const
601 {
602 if (!(__io.flags() & ios_base::boolalpha))
603 {
604 // Parse bool values as long.
605 // NB: We can't just call do_get(long) here, as it might
606 // refer to a derived class.
607 long __l = -1;
608 __beg = _M_extract_int(__beg, __end, __io, __err, __l);
609 if (__l == 0 || __l == 1)
610 __v = bool(__l);
611 else
612 {
613 // _GLIBCXX_RESOLVE_LIB_DEFECTS
614 // 23. Num_get overflow result.
615 __v = true;
616 __err = ios_base::failbit;
617 if (__beg == __end)
618 __err |= ios_base::eofbit;
619 }
620 }
621 else
622 {
623 // Parse bool values as alphanumeric.
624 typedef __numpunct_cache<_CharT> __cache_type;
625 __use_cache<__cache_type> __uc;
626 const locale& __loc = __io._M_getloc();
627 const __cache_type* __lc = __uc(__loc);
628
629 bool __testf = true;
630 bool __testt = true;
631 bool __donef = __lc->_M_falsename_size == 0;
632 bool __donet = __lc->_M_truename_size == 0;
633 bool __testeof = false;
634 size_t __n = 0;
635 while (!__donef || !__donet)
636 {
637 if (__beg == __end)
638 {
639 __testeof = true;
640 break;
641 }
642
643 const char_type __c = *__beg;
644
645 if (!__donef)
646 __testf = __c == __lc->_M_falsename[__n];
647
648 if (!__testf && __donet)
649 break;
650
651 if (!__donet)
652 __testt = __c == __lc->_M_truename[__n];
653
654 if (!__testt && __donef)
655 break;
656
657 if (!__testt && !__testf)
658 break;
659
660 ++__n;
661 ++__beg;
662
663 __donef = !__testf || __n >= __lc->_M_falsename_size;
664 __donet = !__testt || __n >= __lc->_M_truename_size;
665 }
666 if (__testf && __n == __lc->_M_falsename_size && __n)
667 {
668 __v = false;
669 if (__testt && __n == __lc->_M_truename_size)
670 __err = ios_base::failbit;
671 else
672 __err = __testeof ? ios_base::eofbit : ios_base::goodbit;
673 }
674 else if (__testt && __n == __lc->_M_truename_size && __n)
675 {
676 __v = true;
677 __err = __testeof ? ios_base::eofbit : ios_base::goodbit;
678 }
679 else
680 {
681 // _GLIBCXX_RESOLVE_LIB_DEFECTS
682 // 23. Num_get overflow result.
683 __v = false;
684 __err = ios_base::failbit;
685 if (__testeof)
686 __err |= ios_base::eofbit;
687 }
688 }
689 return __beg;
690 }
691
692 template<typename _CharT, typename _InIter>
693 _InIter
694 num_get<_CharT, _InIter>::
695 do_get(iter_type __beg, iter_type __end, ios_base& __io,
696 ios_base::iostate& __err, float& __v) const
697 {
698 string __xtrc;
699 __xtrc.reserve(32);
700 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
701 std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
702 if (__beg == __end)
703 __err |= ios_base::eofbit;
704 return __beg;
705 }
706
707 template<typename _CharT, typename _InIter>
708 _InIter
709 num_get<_CharT, _InIter>::
710 do_get(iter_type __beg, iter_type __end, ios_base& __io,
711 ios_base::iostate& __err, double& __v) const
712 {
713 string __xtrc;
714 __xtrc.reserve(32);
715 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
716 std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
717 if (__beg == __end)
718 __err |= ios_base::eofbit;
719 return __beg;
720 }
721
722#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
723 template<typename _CharT, typename _InIter>
724 _InIter
725 num_get<_CharT, _InIter>::
726 __do_get(iter_type __beg, iter_type __end, ios_base& __io,
727 ios_base::iostate& __err, double& __v) const
728 {
729 string __xtrc;
730 __xtrc.reserve(32);
731 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
732 std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
733 if (__beg == __end)
734 __err |= ios_base::eofbit;
735 return __beg;
736 }
737#endif
738
739 template<typename _CharT, typename _InIter>
740 _InIter
741 num_get<_CharT, _InIter>::
742 do_get(iter_type __beg, iter_type __end, ios_base& __io,
743 ios_base::iostate& __err, long double& __v) const
744 {
745 string __xtrc;
746 __xtrc.reserve(32);
747 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
748 std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
749 if (__beg == __end)
750 __err |= ios_base::eofbit;
751 return __beg;
752 }
753
754 template<typename _CharT, typename _InIter>
755 _InIter
756 num_get<_CharT, _InIter>::
757 do_get(iter_type __beg, iter_type __end, ios_base& __io,
758 ios_base::iostate& __err, void*& __v) const
759 {
760 // Prepare for hex formatted input.
761 typedef ios_base::fmtflags fmtflags;
762 const fmtflags __fmt = __io.flags();
763 __io.flags((__fmt & ~ios_base::basefield) | ios_base::hex);
764
765#pragma GCC diagnostic push
766#pragma GCC diagnostic ignored "-Wlong-long"
767 typedef __gnu_cxx::__conditional_type<(sizeof(void*)
768 <= sizeof(unsigned long)),
769 unsigned long, unsigned long long>::__type _UIntPtrType;
770#pragma GCC diagnostic pop
771
772 _UIntPtrType __ul;
773 __beg = _M_extract_int(__beg, __end, __io, __err, __ul);
774
775 // Reset from hex formatted input.
776 __io.flags(__fmt);
777
778 __v = reinterpret_cast<void*>(__ul);
779 return __beg;
780 }
781
782#if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \
783 && defined __LONG_DOUBLE_IEEE128__
784 template<typename _CharT, typename _InIter>
785 _InIter
786 num_get<_CharT, _InIter>::
787 __do_get(iter_type __beg, iter_type __end, ios_base& __io,
788 ios_base::iostate& __err, __ibm128& __v) const
789 {
790 string __xtrc;
791 __xtrc.reserve(32);
792 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
793 std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
794 if (__beg == __end)
795 __err |= ios_base::eofbit;
796 return __beg;
797 }
798#endif
799
800 // For use by integer and floating-point types after they have been
801 // converted into a char_type string.
802 template<typename _CharT, typename _OutIter>
803 void
804 num_put<_CharT, _OutIter>::
805 _M_pad(_CharT __fill, streamsize __w, ios_base& __io,
806 _CharT* __new, const _CharT* __cs, int& __len) const
807 {
808 // [22.2.2.2.2] Stage 3.
809 // If necessary, pad.
810 __pad<_CharT, char_traits<_CharT> >::_S_pad(__io, __fill, __new,
811 __cs, __w, __len);
812 __len = static_cast<int>(__w);
813 }
814
815_GLIBCXX_END_NAMESPACE_LDBL
816
817 template<typename _CharT, typename _ValueT>
818 int
819 __int_to_char(_CharT* __bufend, _ValueT __v, const _CharT* __lit,
820 ios_base::fmtflags __flags, bool __dec)
821 {
822 _CharT* __buf = __bufend;
823 if (__builtin_expect(__dec, true))
824 {
825 // Decimal.
826 do
827 {
828 *--__buf = __lit[(__v % 10) + __num_base::_S_odigits];
829 __v /= 10;
830 }
831 while (__v != 0);
832 }
833 else if ((__flags & ios_base::basefield) == ios_base::oct)
834 {
835 // Octal.
836 do
837 {
838 *--__buf = __lit[(__v & 0x7) + __num_base::_S_odigits];
839 __v >>= 3;
840 }
841 while (__v != 0);
842 }
843 else
844 {
845 // Hex.
846 const bool __uppercase = __flags & ios_base::uppercase;
847 const int __case_offset = __uppercase ? __num_base::_S_oudigits
848 : __num_base::_S_odigits;
849 do
850 {
851 *--__buf = __lit[(__v & 0xf) + __case_offset];
852 __v >>= 4;
853 }
854 while (__v != 0);
855 }
856 return __bufend - __buf;
857 }
858
859_GLIBCXX_BEGIN_NAMESPACE_LDBL
860
861 template<typename _CharT, typename _OutIter>
862 void
863 num_put<_CharT, _OutIter>::
864 _M_group_int(const char* __grouping, size_t __grouping_size, _CharT __sep,
865 ios_base&, _CharT* __new, _CharT* __cs, int& __len) const
866 {
867 _CharT* __p = std::__add_grouping(__new, __sep, __grouping,
868 __grouping_size, __cs, __cs + __len);
869 __len = __p - __new;
870 }
871
872 template<typename _CharT, typename _OutIter>
873 template<typename _ValueT>
874 _OutIter
875 num_put<_CharT, _OutIter>::
876 _M_insert_int(_OutIter __s, ios_base& __io, _CharT __fill,
877 _ValueT __v) const
878 {
879 using __gnu_cxx::__add_unsigned;
880 typedef typename __add_unsigned<_ValueT>::__type __unsigned_type;
881 typedef __numpunct_cache<_CharT> __cache_type;
882 __use_cache<__cache_type> __uc;
883 const locale& __loc = __io._M_getloc();
884 const __cache_type* __lc = __uc(__loc);
885 const _CharT* __lit = __lc->_M_atoms_out;
886 const ios_base::fmtflags __flags = __io.flags();
887
888 // Long enough to hold hex, dec, and octal representations.
889 const int __ilen = 5 * sizeof(_ValueT);
890 _CharT* __cs = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
891 * __ilen));
892
893 // [22.2.2.2.2] Stage 1, numeric conversion to character.
894 // Result is returned right-justified in the buffer.
895 const ios_base::fmtflags __basefield = __flags & ios_base::basefield;
896 const bool __dec = (__basefield != ios_base::oct
897 && __basefield != ios_base::hex);
898 const __unsigned_type __u = ((__v > 0 || !__dec)
899 ? __unsigned_type(__v)
900 : -__unsigned_type(__v));
901 int __len = __int_to_char(__cs + __ilen, __u, __lit, __flags, __dec);
902 __cs += __ilen - __len;
903
904 // Add grouping, if necessary.
905 if (__lc->_M_use_grouping)
906 {
907 // Grouping can add (almost) as many separators as the number
908 // of digits + space is reserved for numeric base or sign.
909 _CharT* __cs2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
910 * (__len + 1)
911 * 2));
912 _M_group_int(__lc->_M_grouping, __lc->_M_grouping_size,
913 __lc->_M_thousands_sep, __io, __cs2 + 2, __cs, __len);
914 __cs = __cs2 + 2;
915 }
916
917 // Complete Stage 1, prepend numeric base or sign.
918 if (__builtin_expect(__dec, true))
919 {
920 // Decimal.
921 if (__v >= 0)
922 {
923 if (bool(__flags & ios_base::showpos)
924 && __gnu_cxx::__numeric_traits<_ValueT>::__is_signed)
925 *--__cs = __lit[__num_base::_S_oplus], ++__len;
926 }
927 else
928 *--__cs = __lit[__num_base::_S_ominus], ++__len;
929 }
930 else if (bool(__flags & ios_base::showbase) && __v)
931 {
932 if (__basefield == ios_base::oct)
933 *--__cs = __lit[__num_base::_S_odigits], ++__len;
934 else
935 {
936 // 'x' or 'X'
937 const bool __uppercase = __flags & ios_base::uppercase;
938 *--__cs = __lit[__num_base::_S_ox + __uppercase];
939 // '0'
940 *--__cs = __lit[__num_base::_S_odigits];
941 __len += 2;
942 }
943 }
944
945 // Pad.
946 const streamsize __w = __io.width();
947 if (__w > static_cast<streamsize>(__len))
948 {
949 _CharT* __cs3 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
950 * __w));
951 _M_pad(__fill, __w, __io, __cs3, __cs, __len);
952 __cs = __cs3;
953 }
954 __io.width(0);
955
956 // [22.2.2.2.2] Stage 4.
957 // Write resulting, fully-formatted string to output iterator.
958 return std::__write(__s, __cs, __len);
959 }
960
961 template<typename _CharT, typename _OutIter>
962 void
963 num_put<_CharT, _OutIter>::
964 _M_group_float(const char* __grouping, size_t __grouping_size,
965 _CharT __sep, const _CharT* __p, _CharT* __new,
966 _CharT* __cs, int& __len) const
967 {
968 // _GLIBCXX_RESOLVE_LIB_DEFECTS
969 // 282. What types does numpunct grouping refer to?
970 // Add grouping, if necessary.
971 const int __declen = __p ? __p - __cs : __len;
972 _CharT* __p2 = std::__add_grouping(__new, __sep, __grouping,
973 __grouping_size,
974 __cs, __cs + __declen);
975
976 // Tack on decimal part.
977 int __newlen = __p2 - __new;
978 if (__p)
979 {
980 char_traits<_CharT>::copy(__p2, __p, __len - __declen);
981 __newlen += __len - __declen;
982 }
983 __len = __newlen;
984 }
985
986 // The following code uses vsnprintf (or vsprintf(), when
987 // _GLIBCXX_USE_C99_STDIO is not defined) to convert floating point
988 // values for insertion into a stream. An optimization would be to
989 // replace them with code that works directly on a wide buffer and
990 // then use __pad to do the padding. It would be good to replace
991 // them anyway to gain back the efficiency that C++ provides by
992 // knowing up front the type of the values to insert. Also, sprintf
993 // is dangerous since may lead to accidental buffer overruns. This
994 // implementation follows the C++ standard fairly directly as
995 // outlined in 22.2.2.2 [lib.locale.num.put]
996 template<typename _CharT, typename _OutIter>
997 template<typename _ValueT>
998 _OutIter
999 num_put<_CharT, _OutIter>::
1000 _M_insert_float(_OutIter __s, ios_base& __io, _CharT __fill, char __mod,
1001 _ValueT __v) const
1002 {
1003 typedef __numpunct_cache<_CharT> __cache_type;
1004 __use_cache<__cache_type> __uc;
1005 const locale& __loc = __io._M_getloc();
1006 const __cache_type* __lc = __uc(__loc);
1007
1008 // Use default precision if out of range.
1009 const streamsize __prec = __io.precision() < 0 ? 6 : __io.precision();
1010
1011 const int __max_digits =
1012 __gnu_cxx::__numeric_traits<_ValueT>::__digits10;
1013
1014 // [22.2.2.2.2] Stage 1, numeric conversion to character.
1015 int __len;
1016 // Long enough for the max format spec.
1017 char __fbuf[16];
1018 __num_base::_S_format_float(__io, __fbuf, __mod);
1019
1020#if _GLIBCXX_USE_C99_STDIO && !_GLIBCXX_HAVE_BROKEN_VSNPRINTF
1021 // Precision is always used except for hexfloat format.
1022 const bool __use_prec =
1023 (__io.flags() & ios_base::floatfield) != ios_base::floatfield;
1024
1025 // First try a buffer perhaps big enough (most probably sufficient
1026 // for non-ios_base::fixed outputs)
1027 int __cs_size = __max_digits * 3;
1028 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
1029 if (__use_prec)
1030 __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
1031 __fbuf, __prec, __v);
1032 else
1033 __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
1034 __fbuf, __v);
1035
1036 // If the buffer was not large enough, try again with the correct size.
1037 if (__len >= __cs_size)
1038 {
1039 __cs_size = __len + 1;
1040 __cs = static_cast<char*>(__builtin_alloca(__cs_size));
1041 if (__use_prec)
1042 __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
1043 __fbuf, __prec, __v);
1044 else
1045 __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
1046 __fbuf, __v);
1047 }
1048#else
1049 // Consider the possibility of long ios_base::fixed outputs
1050 const bool __fixed = __io.flags() & ios_base::fixed;
1051 const int __max_exp =
1052 __gnu_cxx::__numeric_traits<_ValueT>::__max_exponent10;
1053
1054 // The size of the output string is computed as follows.
1055 // ios_base::fixed outputs may need up to __max_exp + 1 chars
1056 // for the integer part + __prec chars for the fractional part
1057 // + 3 chars for sign, decimal point, '\0'. On the other hand,
1058 // for non-fixed outputs __max_digits * 2 + __prec chars are
1059 // largely sufficient.
1060 const int __cs_size = __fixed ? __max_exp + __prec + 4
1061 : __max_digits * 2 + __prec;
1062 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
1063 __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, __fbuf,
1064 __prec, __v);
1065#endif
1066
1067 // [22.2.2.2.2] Stage 2, convert to char_type, using correct
1068 // numpunct.decimal_point() values for '.' and adding grouping.
1069 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1070
1071 _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
1072 * __len));
1073 __ctype.widen(__cs, __cs + __len, __ws);
1074
1075 // Replace decimal point.
1076 _CharT* __wp = 0;
1077 const char* __p = char_traits<char>::find(__cs, __len, '.');
1078 if (__p)
1079 {
1080 __wp = __ws + (__p - __cs);
1081 *__wp = __lc->_M_decimal_point;
1082 }
1083
1084 // Add grouping, if necessary.
1085 // N.B. Make sure to not group things like 2e20, i.e., no decimal
1086 // point, scientific notation.
1087 if (__lc->_M_use_grouping
1088 && (__wp || __len < 3 || (__cs[1] <= '9' && __cs[2] <= '9'
1089 && __cs[1] >= '0' && __cs[2] >= '0')))
1090 {
1091 // Grouping can add (almost) as many separators as the
1092 // number of digits, but no more.
1093 _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
1094 * __len * 2));
1095
1096 streamsize __off = 0;
1097 if (__cs[0] == '-' || __cs[0] == '+')
1098 {
1099 __off = 1;
1100 __ws2[0] = __ws[0];
1101 __len -= 1;
1102 }
1103
1104 _M_group_float(__lc->_M_grouping, __lc->_M_grouping_size,
1105 __lc->_M_thousands_sep, __wp, __ws2 + __off,
1106 __ws + __off, __len);
1107 __len += __off;
1108
1109 __ws = __ws2;
1110 }
1111
1112 // Pad.
1113 const streamsize __w = __io.width();
1114 if (__w > static_cast<streamsize>(__len))
1115 {
1116 _CharT* __ws3 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
1117 * __w));
1118 _M_pad(__fill, __w, __io, __ws3, __ws, __len);
1119 __ws = __ws3;
1120 }
1121 __io.width(0);
1122
1123 // [22.2.2.2.2] Stage 4.
1124 // Write resulting, fully-formatted string to output iterator.
1125 return std::__write(__s, __ws, __len);
1126 }
1127
1128 template<typename _CharT, typename _OutIter>
1129 _OutIter
1130 num_put<_CharT, _OutIter>::
1131 do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const
1132 {
1133 const ios_base::fmtflags __flags = __io.flags();
1134 if ((__flags & ios_base::boolalpha) == 0)
1135 {
1136 const long __l = __v;
1137 __s = _M_insert_int(__s, __io, __fill, __l);
1138 }
1139 else
1140 {
1141 typedef __numpunct_cache<_CharT> __cache_type;
1142 __use_cache<__cache_type> __uc;
1143 const locale& __loc = __io._M_getloc();
1144 const __cache_type* __lc = __uc(__loc);
1145
1146 const _CharT* __name = __v ? __lc->_M_truename
1147 : __lc->_M_falsename;
1148 int __len = __v ? __lc->_M_truename_size
1149 : __lc->_M_falsename_size;
1150
1151 const streamsize __w = __io.width();
1152 if (__w > static_cast<streamsize>(__len))
1153 {
1154 const streamsize __plen = __w - __len;
1155 _CharT* __ps
1156 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
1157 * __plen));
1158
1159 char_traits<_CharT>::assign(__ps, __plen, __fill);
1160 __io.width(0);
1161
1162 if ((__flags & ios_base::adjustfield) == ios_base::left)
1163 {
1164 __s = std::__write(__s, __name, __len);
1165 __s = std::__write(__s, __ps, __plen);
1166 }
1167 else
1168 {
1169 __s = std::__write(__s, __ps, __plen);
1170 __s = std::__write(__s, __name, __len);
1171 }
1172 return __s;
1173 }
1174 __io.width(0);
1175 __s = std::__write(__s, __name, __len);
1176 }
1177 return __s;
1178 }
1179
1180 template<typename _CharT, typename _OutIter>
1181 _OutIter
1182 num_put<_CharT, _OutIter>::
1183 do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
1184 { return _M_insert_float(__s, __io, __fill, char(), __v); }
1185
1186#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
1187 template<typename _CharT, typename _OutIter>
1188 _OutIter
1189 num_put<_CharT, _OutIter>::
1190 __do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
1191 { return _M_insert_float(__s, __io, __fill, char(), __v); }
1192#endif
1193
1194 template<typename _CharT, typename _OutIter>
1195 _OutIter
1196 num_put<_CharT, _OutIter>::
1197 do_put(iter_type __s, ios_base& __io, char_type __fill,
1198 long double __v) const
1199 { return _M_insert_float(__s, __io, __fill, 'L', __v); }
1200
1201 template<typename _CharT, typename _OutIter>
1202 _OutIter
1203 num_put<_CharT, _OutIter>::
1204 do_put(iter_type __s, ios_base& __io, char_type __fill,
1205 const void* __v) const
1206 {
1207 const ios_base::fmtflags __flags = __io.flags();
1208 const ios_base::fmtflags __fmt = ~(ios_base::basefield
1209 | ios_base::uppercase);
1210 __io.flags((__flags & __fmt) | (ios_base::hex | ios_base::showbase));
1211
1212#pragma GCC diagnostic push
1213#pragma GCC diagnostic ignored "-Wlong-long"
1214 typedef __gnu_cxx::__conditional_type<(sizeof(const void*)
1215 <= sizeof(unsigned long)),
1216 unsigned long, unsigned long long>::__type _UIntPtrType;
1217#pragma GCC diagnostic pop
1218
1219 __s = _M_insert_int(__s, __io, __fill,
1220 reinterpret_cast<_UIntPtrType>(__v));
1221 __io.flags(__flags);
1222 return __s;
1223 }
1224
1225#if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \
1226 && defined __LONG_DOUBLE_IEEE128__
1227 template<typename _CharT, typename _OutIter>
1228 _OutIter
1229 num_put<_CharT, _OutIter>::
1230 __do_put(iter_type __s, ios_base& __io, char_type __fill,
1231 __ibm128 __v) const
1232 { return _M_insert_float(__s, __io, __fill, 'L', __v); }
1233#endif
1234_GLIBCXX_END_NAMESPACE_LDBL
1235
1236 // Construct correctly padded string, as per 22.2.2.2.2
1237 // Assumes
1238 // __newlen > __oldlen
1239 // __news is allocated for __newlen size
1240
1241 // NB: Of the two parameters, _CharT can be deduced from the
1242 // function arguments. The other (_Traits) has to be explicitly specified.
1243 template<typename _CharT, typename _Traits>
1244 void
1245 __pad<_CharT, _Traits>::_S_pad(ios_base& __io, _CharT __fill,
1246 _CharT* __news, const _CharT* __olds,
1247 streamsize __newlen, streamsize __oldlen)
1248 {
1249 const size_t __plen = static_cast<size_t>(__newlen - __oldlen);
1250 const ios_base::fmtflags __adjust = __io.flags() & ios_base::adjustfield;
1251
1252 // Padding last.
1253 if (__adjust == ios_base::left)
1254 {
1255 _Traits::copy(__news, __olds, __oldlen);
1256 _Traits::assign(__news + __oldlen, __plen, __fill);
1257 return;
1258 }
1259
1260 size_t __mod = 0;
1261 if (__adjust == ios_base::internal)
1262 {
1263 // Pad after the sign, if there is one.
1264 // Pad after 0[xX], if there is one.
1265 // Who came up with these rules, anyway? Jeeze.
1266 const locale& __loc = __io._M_getloc();
1267 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1268
1269 if (__ctype.widen('-') == __olds[0]
1270 || __ctype.widen('+') == __olds[0])
1271 {
1272 __news[0] = __olds[0];
1273 __mod = 1;
1274 ++__news;
1275 }
1276 else if (__ctype.widen('0') == __olds[0]
1277 && __oldlen > 1
1278 && (__ctype.widen('x') == __olds[1]
1279 || __ctype.widen('X') == __olds[1]))
1280 {
1281 __news[0] = __olds[0];
1282 __news[1] = __olds[1];
1283 __mod = 2;
1284 __news += 2;
1285 }
1286 // else Padding first.
1287 }
1288 _Traits::assign(__news, __plen, __fill);
1289 _Traits::copy(__news + __plen, __olds + __mod, __oldlen - __mod);
1290 }
1291
1292 template<typename _CharT>
1293 _CharT*
1294 __add_grouping(_CharT* __s, _CharT __sep,
1295 const char* __gbeg, size_t __gsize,
1296 const _CharT* __first, const _CharT* __last)
1297 {
1298 size_t __idx = 0;
1299 size_t __ctr = 0;
1300
1301 while (__last - __first > __gbeg[__idx]
1302 && static_cast<signed char>(__gbeg[__idx]) > 0
1303 && __gbeg[__idx] != __gnu_cxx::__numeric_traits<char>::__max)
1304 {
1305 __last -= __gbeg[__idx];
1306 __idx < __gsize - 1 ? ++__idx : ++__ctr;
1307 }
1308
1309 while (__first != __last)
1310 *__s++ = *__first++;
1311
1312 while (__ctr--)
1313 {
1314 *__s++ = __sep;
1315 for (char __i = __gbeg[__idx]; __i > 0; --__i)
1316 *__s++ = *__first++;
1317 }
1318
1319 while (__idx--)
1320 {
1321 *__s++ = __sep;
1322 for (char __i = __gbeg[__idx]; __i > 0; --__i)
1323 *__s++ = *__first++;
1324 }
1325
1326 return __s;
1327 }
1328
1329 // Inhibit implicit instantiations for required instantiations,
1330 // which are defined via explicit instantiations elsewhere.
1331#if _GLIBCXX_EXTERN_TEMPLATE
1332 extern template class _GLIBCXX_NAMESPACE_CXX11 numpunct<char>;
1333 extern template class _GLIBCXX_NAMESPACE_CXX11 numpunct_byname<char>;
1334 extern template class _GLIBCXX_NAMESPACE_LDBL num_get<char>;
1335 extern template class _GLIBCXX_NAMESPACE_LDBL num_put<char>;
1336 extern template class ctype_byname<char>;
1337
1338 extern template
1339 const ctype<char>*
1340 __try_use_facet<ctype<char> >(const locale&) _GLIBCXX_NOTHROW;
1341
1342 extern template
1343 const numpunct<char>*
1344 __try_use_facet<numpunct<char> >(const locale&) _GLIBCXX_NOTHROW;
1345
1346 extern template
1347 const num_put<char>*
1348 __try_use_facet<num_put<char> >(const locale&) _GLIBCXX_NOTHROW;
1349
1350 extern template
1351 const num_get<char>*
1352 __try_use_facet<num_get<char> >(const locale&) _GLIBCXX_NOTHROW;
1353
1354 extern template
1355 const ctype<char>&
1356 use_facet<ctype<char> >(const locale&);
1357
1358 extern template
1359 const numpunct<char>&
1360 use_facet<numpunct<char> >(const locale&);
1361
1362 extern template
1363 const num_put<char>&
1364 use_facet<num_put<char> >(const locale&);
1365
1366 extern template
1367 const num_get<char>&
1368 use_facet<num_get<char> >(const locale&);
1369
1370 extern template
1371 bool
1372 has_facet<ctype<char> >(const locale&);
1373
1374 extern template
1375 bool
1376 has_facet<numpunct<char> >(const locale&);
1377
1378 extern template
1379 bool
1380 has_facet<num_put<char> >(const locale&);
1381
1382 extern template
1383 bool
1384 has_facet<num_get<char> >(const locale&);
1385
1386#ifdef _GLIBCXX_USE_WCHAR_T
1387 extern template class _GLIBCXX_NAMESPACE_CXX11 numpunct<wchar_t>;
1388 extern template class _GLIBCXX_NAMESPACE_CXX11 numpunct_byname<wchar_t>;
1389 extern template class _GLIBCXX_NAMESPACE_LDBL num_get<wchar_t>;
1390 extern template class _GLIBCXX_NAMESPACE_LDBL num_put<wchar_t>;
1391 extern template class ctype_byname<wchar_t>;
1392
1393 extern template
1394 const ctype<wchar_t>*
1395 __try_use_facet<ctype<wchar_t> >(const locale&) _GLIBCXX_NOTHROW;
1396
1397 extern template
1398 const numpunct<wchar_t>*
1399 __try_use_facet<numpunct<wchar_t> >(const locale&) _GLIBCXX_NOTHROW;
1400
1401 extern template
1402 const num_put<wchar_t>*
1403 __try_use_facet<num_put<wchar_t> >(const locale&) _GLIBCXX_NOTHROW;
1404
1405 extern template
1406 const num_get<wchar_t>*
1407 __try_use_facet<num_get<wchar_t> >(const locale&) _GLIBCXX_NOTHROW;
1408
1409 extern template
1410 const ctype<wchar_t>&
1411 use_facet<ctype<wchar_t> >(const locale&);
1412
1413 extern template
1414 const numpunct<wchar_t>&
1415 use_facet<numpunct<wchar_t> >(const locale&);
1416
1417 extern template
1418 const num_put<wchar_t>&
1419 use_facet<num_put<wchar_t> >(const locale&);
1420
1421 extern template
1422 const num_get<wchar_t>&
1423 use_facet<num_get<wchar_t> >(const locale&);
1424
1425 extern template
1426 bool
1427 has_facet<ctype<wchar_t> >(const locale&);
1428
1429 extern template
1430 bool
1431 has_facet<numpunct<wchar_t> >(const locale&);
1432
1433 extern template
1434 bool
1435 has_facet<num_put<wchar_t> >(const locale&);
1436
1437 extern template
1438 bool
1439 has_facet<num_get<wchar_t> >(const locale&);
1440#endif
1441#endif
1442
1443_GLIBCXX_END_NAMESPACE_VERSION
1444} // namespace
1445
1446#pragma GCC diagnostic pop
1447#endif
std::ios_base::fmtflags
class __attribute((__abi_tag__("cxx11"))) failure typedef _Ios_Fmtflags fmtflags
These are thrown to indicate problems with io.
Definition ios_base.h:292
std::has_facet
bool has_facet(const locale &__loc) noexcept
Test for the presence of a facet.
Definition locale_classes.tcc:190
std::use_facet
const _Facet & use_facet(const locale &__loc)
Return a facet.
Definition locale_classes.tcc:220
std
ISO C++ entities toplevel namespace is std.
std::streamsize
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
Definition postypes.h:73
__gnu_debug::__base
constexpr _Iterator __base(_Iterator __it)
Definition helper_functions.h:320
std::basic_string
Managing sequences of characters and character-like objects.
Definition basic_string.h:95
std::basic_string::c_str
constexpr const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
Definition basic_string.h:2873
std::basic_string::size
constexpr size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
Definition basic_string.h:1163
std::basic_string::reserve
constexpr void reserve(size_type __res_arg)
Attempt to preallocate enough memory for specified number of characters.
Definition cow_string.h:3653
std::char_traits
Basis for explicit traits specializations.
Definition char_traits.h:329
std::ios_base
The base of the I/O class hierarchy.
Definition ios_base.h:266
std::ios_base::iostate
_Ios_Iostate iostate
This is a bitmask type.
Definition ios_base.h:453
std::ios_base::hex
static const fmtflags hex
Converts integer input or generates integer output in hexadecimal base.
Definition ios_base.h:390
std::ios_base::uppercase
static const fmtflags uppercase
Replaces certain lowercase letters with their uppercase equivalents in generated output.
Definition ios_base.h:430
std::ios_base::basefield
static const fmtflags basefield
A mask of dec|oct|hex. Useful for the 2-arg form of setf.
Definition ios_base.h:436
std::ios_base::showbase
static const fmtflags showbase
Generates a prefix indicating the numeric base of generated integer output.
Definition ios_base.h:413
std::ios_base::internal
static const fmtflags internal
Adds fill characters at a designated internal point in certain generated output, or identical to righ...
Definition ios_base.h:395
std::ios_base::boolalpha
static const fmtflags boolalpha
Insert/extract bool in alphabetic rather than numeric format.
Definition ios_base.h:381
std::ios_base::flags
fmtflags flags() const
Access to format flags.
Definition ios_base.h:694
std::ios_base::eofbit
static const iostate eofbit
Indicates that an input operation reached the end of an input sequence.
Definition ios_base.h:460
std::ios_base::floatfield
static const fmtflags floatfield
A mask of scientific|fixed. Useful for the 2-arg form of setf.
Definition ios_base.h:439
std::ios_base::goodbit
static const iostate goodbit
Indicates all is well.
Definition ios_base.h:468
std::ios_base::_M_getloc
const locale & _M_getloc() const
Locale access.
Definition ios_base.h:852
std::ios_base::width
streamsize width() const
Flags access.
Definition ios_base.h:789
std::ios_base::fixed
static const fmtflags fixed
Generate floating-point output in fixed-point notation.
Definition ios_base.h:387
std::ios_base::oct
static const fmtflags oct
Converts integer input or generates integer output in octal base.
Definition ios_base.h:402
std::ios_base::left
static const fmtflags left
Adds fill characters on the right (final positions) of certain generated output. (I....
Definition ios_base.h:399
std::ios_base::showpos
static const fmtflags showpos
Generates a + sign in non-negative generated numeric output.
Definition ios_base.h:420
std::ios_base::failbit
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
Definition ios_base.h:465
std::ios_base::adjustfield
static const fmtflags adjustfield
A mask of left|right|internal. Useful for the 2-arg form of setf.
Definition ios_base.h:433
std::locale
Container class for localization functionality.
Definition locale_classes.h:69
std::ctype
Primary class template ctype facet.
Definition locale_facets.h:618
std::ctype_byname
class ctype_byname [22.2.1.2].
Definition locale_facets.h:1489
std::numpunct
Primary class template numpunct.
Definition locale_facets.h:1681
std::numpunct::id
static locale::id id
Numpunct facet id.
Definition locale_facets.h:1696
std::numpunct_byname
class numpunct_byname [22.2.3.2].
Definition locale_facets.h:1914
std::num_get
Primary class template num_get.
Definition locale_facets.h:1963
std::num_get::iter_type
_InIter iter_type
Public typedefs.
Definition locale_facets.h:1969
std::num_get::char_type
_CharT char_type
Public typedefs.
Definition locale_facets.h:1968
std::num_get::do_get
virtual iter_type do_get(iter_type, iter_type, ios_base &, ios_base::iostate &, bool &) const
Numeric parsing.
Definition locale_facets.tcc:599
std::num_put
Primary class template num_put.
Definition locale_facets.h:2327
std::num_put::do_put
virtual iter_type do_put(iter_type __s, ios_base &__io, char_type __fill, bool __v) const
Numeric formatting.
Definition locale_facets.tcc:1131
std::num_put::char_type
_CharT char_type
Public typedefs.
Definition locale_facets.h:2332
std::num_put::iter_type
_OutIter iter_type
Public typedefs.
Definition locale_facets.h:2333