Line data Source code
1 : // Locale support -*- C++ -*-
2 :
3 : // Copyright (C) 1997-2019 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.h
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 : //
31 : // ISO C++ 14882: 22.1 Locales
32 : //
33 :
34 : #ifndef _LOCALE_FACETS_H
35 : #define _LOCALE_FACETS_H 1
36 :
37 : #pragma GCC system_header
38 :
39 : #include <cwctype> // For wctype_t
40 : #include <cctype>
41 : #include <bits/ctype_base.h>
42 : #include <iosfwd>
43 : #include <bits/ios_base.h> // For ios_base, ios_base::iostate
44 : #include <streambuf>
45 : #include <bits/cpp_type_traits.h>
46 : #include <ext/type_traits.h>
47 : #include <ext/numeric_traits.h>
48 : #include <bits/streambuf_iterator.h>
49 :
50 : namespace std _GLIBCXX_VISIBILITY(default)
51 : {
52 : _GLIBCXX_BEGIN_NAMESPACE_VERSION
53 :
54 : // NB: Don't instantiate required wchar_t facets if no wchar_t support.
55 : #ifdef _GLIBCXX_USE_WCHAR_T
56 : # define _GLIBCXX_NUM_FACETS 28
57 : # define _GLIBCXX_NUM_CXX11_FACETS 16
58 : #else
59 : # define _GLIBCXX_NUM_FACETS 14
60 : # define _GLIBCXX_NUM_CXX11_FACETS 8
61 : #endif
62 : #ifdef _GLIBCXX_USE_CHAR8_T
63 : # define _GLIBCXX_NUM_UNICODE_FACETS 4
64 : #else
65 : # define _GLIBCXX_NUM_UNICODE_FACETS 2
66 : #endif
67 :
68 : // Convert string to numeric value of type _Tp and store results.
69 : // NB: This is specialized for all required types, there is no
70 : // generic definition.
71 : template<typename _Tp>
72 : void
73 : __convert_to_v(const char*, _Tp&, ios_base::iostate&,
74 : const __c_locale&) throw();
75 :
76 : // Explicit specializations for required types.
77 : template<>
78 : void
79 : __convert_to_v(const char*, float&, ios_base::iostate&,
80 : const __c_locale&) throw();
81 :
82 : template<>
83 : void
84 : __convert_to_v(const char*, double&, ios_base::iostate&,
85 : const __c_locale&) throw();
86 :
87 : template<>
88 : void
89 : __convert_to_v(const char*, long double&, ios_base::iostate&,
90 : const __c_locale&) throw();
91 :
92 : // NB: __pad is a struct, rather than a function, so it can be
93 : // partially-specialized.
94 : template<typename _CharT, typename _Traits>
95 : struct __pad
96 : {
97 : static void
98 : _S_pad(ios_base& __io, _CharT __fill, _CharT* __news,
99 : const _CharT* __olds, streamsize __newlen, streamsize __oldlen);
100 : };
101 :
102 : // Used by both numeric and monetary facets.
103 : // Inserts "group separator" characters into an array of characters.
104 : // It's recursive, one iteration per group. It moves the characters
105 : // in the buffer this way: "xxxx12345" -> "12,345xxx". Call this
106 : // only with __gsize != 0.
107 : template<typename _CharT>
108 : _CharT*
109 : __add_grouping(_CharT* __s, _CharT __sep,
110 : const char* __gbeg, size_t __gsize,
111 : const _CharT* __first, const _CharT* __last);
112 :
113 : // This template permits specializing facet output code for
114 : // ostreambuf_iterator. For ostreambuf_iterator, sputn is
115 : // significantly more efficient than incrementing iterators.
116 : template<typename _CharT>
117 : inline
118 : ostreambuf_iterator<_CharT>
119 : __write(ostreambuf_iterator<_CharT> __s, const _CharT* __ws, int __len)
120 : {
121 : __s._M_put(__ws, __len);
122 : return __s;
123 : }
124 :
125 : // This is the unspecialized form of the template.
126 : template<typename _CharT, typename _OutIter>
127 : inline
128 : _OutIter
129 : __write(_OutIter __s, const _CharT* __ws, int __len)
130 : {
131 : for (int __j = 0; __j < __len; __j++, ++__s)
132 : *__s = __ws[__j];
133 : return __s;
134 : }
135 :
136 :
137 : // 22.2.1.1 Template class ctype
138 : // Include host and configuration specific ctype enums for ctype_base.
139 :
140 : /**
141 : * @brief Common base for ctype facet
142 : *
143 : * This template class provides implementations of the public functions
144 : * that forward to the protected virtual functions.
145 : *
146 : * This template also provides abstract stubs for the protected virtual
147 : * functions.
148 : */
149 : template<typename _CharT>
150 : class __ctype_abstract_base : public locale::facet, public ctype_base
151 : {
152 : public:
153 : // Types:
154 : /// Typedef for the template parameter
155 : typedef _CharT char_type;
156 :
157 : /**
158 : * @brief Test char_type classification.
159 : *
160 : * This function finds a mask M for @a __c and compares it to
161 : * mask @a __m. It does so by returning the value of
162 : * ctype<char_type>::do_is().
163 : *
164 : * @param __c The char_type to compare the mask of.
165 : * @param __m The mask to compare against.
166 : * @return (M & __m) != 0.
167 : */
168 : bool
169 : is(mask __m, char_type __c) const
170 : { return this->do_is(__m, __c); }
171 :
172 : /**
173 : * @brief Return a mask array.
174 : *
175 : * This function finds the mask for each char_type in the range [lo,hi)
176 : * and successively writes it to vec. vec must have as many elements
177 : * as the char array. It does so by returning the value of
178 : * ctype<char_type>::do_is().
179 : *
180 : * @param __lo Pointer to start of range.
181 : * @param __hi Pointer to end of range.
182 : * @param __vec Pointer to an array of mask storage.
183 : * @return @a __hi.
184 : */
185 : const char_type*
186 : is(const char_type *__lo, const char_type *__hi, mask *__vec) const
187 : { return this->do_is(__lo, __hi, __vec); }
188 :
189 : /**
190 : * @brief Find char_type matching a mask
191 : *
192 : * This function searches for and returns the first char_type c in
193 : * [lo,hi) for which is(m,c) is true. It does so by returning
194 : * ctype<char_type>::do_scan_is().
195 : *
196 : * @param __m The mask to compare against.
197 : * @param __lo Pointer to start of range.
198 : * @param __hi Pointer to end of range.
199 : * @return Pointer to matching char_type if found, else @a __hi.
200 : */
201 : const char_type*
202 : scan_is(mask __m, const char_type* __lo, const char_type* __hi) const
203 : { return this->do_scan_is(__m, __lo, __hi); }
204 :
205 : /**
206 : * @brief Find char_type not matching a mask
207 : *
208 : * This function searches for and returns the first char_type c in
209 : * [lo,hi) for which is(m,c) is false. It does so by returning
210 : * ctype<char_type>::do_scan_not().
211 : *
212 : * @param __m The mask to compare against.
213 : * @param __lo Pointer to first char in range.
214 : * @param __hi Pointer to end of range.
215 : * @return Pointer to non-matching char if found, else @a __hi.
216 : */
217 : const char_type*
218 : scan_not(mask __m, const char_type* __lo, const char_type* __hi) const
219 : { return this->do_scan_not(__m, __lo, __hi); }
220 :
221 : /**
222 : * @brief Convert to uppercase.
223 : *
224 : * This function converts the argument to uppercase if possible.
225 : * If not possible (for example, '2'), returns the argument. It does
226 : * so by returning ctype<char_type>::do_toupper().
227 : *
228 : * @param __c The char_type to convert.
229 : * @return The uppercase char_type if convertible, else @a __c.
230 : */
231 : char_type
232 : toupper(char_type __c) const
233 : { return this->do_toupper(__c); }
234 :
235 : /**
236 : * @brief Convert array to uppercase.
237 : *
238 : * This function converts each char_type in the range [lo,hi) to
239 : * uppercase if possible. Other elements remain untouched. It does so
240 : * by returning ctype<char_type>:: do_toupper(lo, hi).
241 : *
242 : * @param __lo Pointer to start of range.
243 : * @param __hi Pointer to end of range.
244 : * @return @a __hi.
245 : */
246 : const char_type*
247 : toupper(char_type *__lo, const char_type* __hi) const
248 : { return this->do_toupper(__lo, __hi); }
249 :
250 : /**
251 : * @brief Convert to lowercase.
252 : *
253 : * This function converts the argument to lowercase if possible. If
254 : * not possible (for example, '2'), returns the argument. It does so
255 : * by returning ctype<char_type>::do_tolower(c).
256 : *
257 : * @param __c The char_type to convert.
258 : * @return The lowercase char_type if convertible, else @a __c.
259 : */
260 : char_type
261 : tolower(char_type __c) const
262 : { return this->do_tolower(__c); }
263 :
264 : /**
265 : * @brief Convert array to lowercase.
266 : *
267 : * This function converts each char_type in the range [__lo,__hi) to
268 : * lowercase if possible. Other elements remain untouched. It does so
269 : * by returning ctype<char_type>:: do_tolower(__lo, __hi).
270 : *
271 : * @param __lo Pointer to start of range.
272 : * @param __hi Pointer to end of range.
273 : * @return @a __hi.
274 : */
275 : const char_type*
276 : tolower(char_type* __lo, const char_type* __hi) const
277 : { return this->do_tolower(__lo, __hi); }
278 :
279 : /**
280 : * @brief Widen char to char_type
281 : *
282 : * This function converts the char argument to char_type using the
283 : * simplest reasonable transformation. It does so by returning
284 : * ctype<char_type>::do_widen(c).
285 : *
286 : * Note: this is not what you want for codepage conversions. See
287 : * codecvt for that.
288 : *
289 : * @param __c The char to convert.
290 : * @return The converted char_type.
291 : */
292 : char_type
293 : widen(char __c) const
294 : { return this->do_widen(__c); }
295 :
296 : /**
297 : * @brief Widen array to char_type
298 : *
299 : * This function converts each char in the input to char_type using the
300 : * simplest reasonable transformation. It does so by returning
301 : * ctype<char_type>::do_widen(c).
302 : *
303 : * Note: this is not what you want for codepage conversions. See
304 : * codecvt for that.
305 : *
306 : * @param __lo Pointer to start of range.
307 : * @param __hi Pointer to end of range.
308 : * @param __to Pointer to the destination array.
309 : * @return @a __hi.
310 : */
311 : const char*
312 : widen(const char* __lo, const char* __hi, char_type* __to) const
313 : { return this->do_widen(__lo, __hi, __to); }
314 :
315 : /**
316 : * @brief Narrow char_type to char
317 : *
318 : * This function converts the char_type to char using the simplest
319 : * reasonable transformation. If the conversion fails, dfault is
320 : * returned instead. It does so by returning
321 : * ctype<char_type>::do_narrow(__c).
322 : *
323 : * Note: this is not what you want for codepage conversions. See
324 : * codecvt for that.
325 : *
326 : * @param __c The char_type to convert.
327 : * @param __dfault Char to return if conversion fails.
328 : * @return The converted char.
329 : */
330 : char
331 : narrow(char_type __c, char __dfault) const
332 : { return this->do_narrow(__c, __dfault); }
333 :
334 : /**
335 : * @brief Narrow array to char array
336 : *
337 : * This function converts each char_type in the input to char using the
338 : * simplest reasonable transformation and writes the results to the
339 : * destination array. For any char_type in the input that cannot be
340 : * converted, @a dfault is used instead. It does so by returning
341 : * ctype<char_type>::do_narrow(__lo, __hi, __dfault, __to).
342 : *
343 : * Note: this is not what you want for codepage conversions. See
344 : * codecvt for that.
345 : *
346 : * @param __lo Pointer to start of range.
347 : * @param __hi Pointer to end of range.
348 : * @param __dfault Char to use if conversion fails.
349 : * @param __to Pointer to the destination array.
350 : * @return @a __hi.
351 : */
352 : const char_type*
353 : narrow(const char_type* __lo, const char_type* __hi,
354 : char __dfault, char* __to) const
355 : { return this->do_narrow(__lo, __hi, __dfault, __to); }
356 :
357 : protected:
358 : explicit
359 : __ctype_abstract_base(size_t __refs = 0): facet(__refs) { }
360 :
361 : virtual
362 : ~__ctype_abstract_base() { }
363 :
364 : /**
365 : * @brief Test char_type classification.
366 : *
367 : * This function finds a mask M for @a c and compares it to mask @a m.
368 : *
369 : * do_is() is a hook for a derived facet to change the behavior of
370 : * classifying. do_is() must always return the same result for the
371 : * same input.
372 : *
373 : * @param __c The char_type to find the mask of.
374 : * @param __m The mask to compare against.
375 : * @return (M & __m) != 0.
376 : */
377 : virtual bool
378 : do_is(mask __m, char_type __c) const = 0;
379 :
380 : /**
381 : * @brief Return a mask array.
382 : *
383 : * This function finds the mask for each char_type in the range [lo,hi)
384 : * and successively writes it to vec. vec must have as many elements
385 : * as the input.
386 : *
387 : * do_is() is a hook for a derived facet to change the behavior of
388 : * classifying. do_is() must always return the same result for the
389 : * same input.
390 : *
391 : * @param __lo Pointer to start of range.
392 : * @param __hi Pointer to end of range.
393 : * @param __vec Pointer to an array of mask storage.
394 : * @return @a __hi.
395 : */
396 : virtual const char_type*
397 : do_is(const char_type* __lo, const char_type* __hi,
398 : mask* __vec) const = 0;
399 :
400 : /**
401 : * @brief Find char_type matching mask
402 : *
403 : * This function searches for and returns the first char_type c in
404 : * [__lo,__hi) for which is(__m,c) is true.
405 : *
406 : * do_scan_is() is a hook for a derived facet to change the behavior of
407 : * match searching. do_is() must always return the same result for the
408 : * same input.
409 : *
410 : * @param __m The mask to compare against.
411 : * @param __lo Pointer to start of range.
412 : * @param __hi Pointer to end of range.
413 : * @return Pointer to a matching char_type if found, else @a __hi.
414 : */
415 : virtual const char_type*
416 : do_scan_is(mask __m, const char_type* __lo,
417 : const char_type* __hi) const = 0;
418 :
419 : /**
420 : * @brief Find char_type not matching mask
421 : *
422 : * This function searches for and returns a pointer to the first
423 : * char_type c of [lo,hi) for which is(m,c) is false.
424 : *
425 : * do_scan_is() is a hook for a derived facet to change the behavior of
426 : * match searching. do_is() must always return the same result for the
427 : * same input.
428 : *
429 : * @param __m The mask to compare against.
430 : * @param __lo Pointer to start of range.
431 : * @param __hi Pointer to end of range.
432 : * @return Pointer to a non-matching char_type if found, else @a __hi.
433 : */
434 : virtual const char_type*
435 : do_scan_not(mask __m, const char_type* __lo,
436 : const char_type* __hi) const = 0;
437 :
438 : /**
439 : * @brief Convert to uppercase.
440 : *
441 : * This virtual function converts the char_type argument to uppercase
442 : * if possible. If not possible (for example, '2'), returns the
443 : * argument.
444 : *
445 : * do_toupper() is a hook for a derived facet to change the behavior of
446 : * uppercasing. do_toupper() must always return the same result for
447 : * the same input.
448 : *
449 : * @param __c The char_type to convert.
450 : * @return The uppercase char_type if convertible, else @a __c.
451 : */
452 : virtual char_type
453 : do_toupper(char_type __c) const = 0;
454 :
455 : /**
456 : * @brief Convert array to uppercase.
457 : *
458 : * This virtual function converts each char_type in the range [__lo,__hi)
459 : * to uppercase if possible. Other elements remain untouched.
460 : *
461 : * do_toupper() is a hook for a derived facet to change the behavior of
462 : * uppercasing. do_toupper() must always return the same result for
463 : * the same input.
464 : *
465 : * @param __lo Pointer to start of range.
466 : * @param __hi Pointer to end of range.
467 : * @return @a __hi.
468 : */
469 : virtual const char_type*
470 : do_toupper(char_type* __lo, const char_type* __hi) const = 0;
471 :
472 : /**
473 : * @brief Convert to lowercase.
474 : *
475 : * This virtual function converts the argument to lowercase if
476 : * possible. If not possible (for example, '2'), returns the argument.
477 : *
478 : * do_tolower() is a hook for a derived facet to change the behavior of
479 : * lowercasing. do_tolower() must always return the same result for
480 : * the same input.
481 : *
482 : * @param __c The char_type to convert.
483 : * @return The lowercase char_type if convertible, else @a __c.
484 : */
485 : virtual char_type
486 : do_tolower(char_type __c) const = 0;
487 :
488 : /**
489 : * @brief Convert array to lowercase.
490 : *
491 : * This virtual function converts each char_type in the range [__lo,__hi)
492 : * to lowercase if possible. Other elements remain untouched.
493 : *
494 : * do_tolower() is a hook for a derived facet to change the behavior of
495 : * lowercasing. do_tolower() must always return the same result for
496 : * the same input.
497 : *
498 : * @param __lo Pointer to start of range.
499 : * @param __hi Pointer to end of range.
500 : * @return @a __hi.
501 : */
502 : virtual const char_type*
503 : do_tolower(char_type* __lo, const char_type* __hi) const = 0;
504 :
505 : /**
506 : * @brief Widen char
507 : *
508 : * This virtual function converts the char to char_type using the
509 : * simplest reasonable transformation.
510 : *
511 : * do_widen() is a hook for a derived facet to change the behavior of
512 : * widening. do_widen() must always return the same result for the
513 : * same input.
514 : *
515 : * Note: this is not what you want for codepage conversions. See
516 : * codecvt for that.
517 : *
518 : * @param __c The char to convert.
519 : * @return The converted char_type
520 : */
521 : virtual char_type
522 : do_widen(char __c) const = 0;
523 :
524 : /**
525 : * @brief Widen char array
526 : *
527 : * This function converts each char in the input to char_type using the
528 : * simplest reasonable transformation.
529 : *
530 : * do_widen() is a hook for a derived facet to change the behavior of
531 : * widening. do_widen() must always return the same result for the
532 : * same input.
533 : *
534 : * Note: this is not what you want for codepage conversions. See
535 : * codecvt for that.
536 : *
537 : * @param __lo Pointer to start range.
538 : * @param __hi Pointer to end of range.
539 : * @param __to Pointer to the destination array.
540 : * @return @a __hi.
541 : */
542 : virtual const char*
543 : do_widen(const char* __lo, const char* __hi, char_type* __to) const = 0;
544 :
545 : /**
546 : * @brief Narrow char_type to char
547 : *
548 : * This virtual function converts the argument to char using the
549 : * simplest reasonable transformation. If the conversion fails, dfault
550 : * is returned instead.
551 : *
552 : * do_narrow() is a hook for a derived facet to change the behavior of
553 : * narrowing. do_narrow() must always return the same result for the
554 : * same input.
555 : *
556 : * Note: this is not what you want for codepage conversions. See
557 : * codecvt for that.
558 : *
559 : * @param __c The char_type to convert.
560 : * @param __dfault Char to return if conversion fails.
561 : * @return The converted char.
562 : */
563 : virtual char
564 : do_narrow(char_type __c, char __dfault) const = 0;
565 :
566 : /**
567 : * @brief Narrow char_type array to char
568 : *
569 : * This virtual function converts each char_type in the range
570 : * [__lo,__hi) to char using the simplest reasonable
571 : * transformation and writes the results to the destination
572 : * array. For any element in the input that cannot be
573 : * converted, @a __dfault is used instead.
574 : *
575 : * do_narrow() is a hook for a derived facet to change the behavior of
576 : * narrowing. do_narrow() must always return the same result for the
577 : * same input.
578 : *
579 : * Note: this is not what you want for codepage conversions. See
580 : * codecvt for that.
581 : *
582 : * @param __lo Pointer to start of range.
583 : * @param __hi Pointer to end of range.
584 : * @param __dfault Char to use if conversion fails.
585 : * @param __to Pointer to the destination array.
586 : * @return @a __hi.
587 : */
588 : virtual const char_type*
589 : do_narrow(const char_type* __lo, const char_type* __hi,
590 : char __dfault, char* __to) const = 0;
591 : };
592 :
593 : /**
594 : * @brief Primary class template ctype facet.
595 : * @ingroup locales
596 : *
597 : * This template class defines classification and conversion functions for
598 : * character sets. It wraps cctype functionality. Ctype gets used by
599 : * streams for many I/O operations.
600 : *
601 : * This template provides the protected virtual functions the developer
602 : * will have to replace in a derived class or specialization to make a
603 : * working facet. The public functions that access them are defined in
604 : * __ctype_abstract_base, to allow for implementation flexibility. See
605 : * ctype<wchar_t> for an example. The functions are documented in
606 : * __ctype_abstract_base.
607 : *
608 : * Note: implementations are provided for all the protected virtual
609 : * functions, but will likely not be useful.
610 : */
611 : template<typename _CharT>
612 : class ctype : public __ctype_abstract_base<_CharT>
613 : {
614 : public:
615 : // Types:
616 : typedef _CharT char_type;
617 : typedef typename __ctype_abstract_base<_CharT>::mask mask;
618 :
619 : /// The facet id for ctype<char_type>
620 : static locale::id id;
621 :
622 : explicit
623 : ctype(size_t __refs = 0) : __ctype_abstract_base<_CharT>(__refs) { }
624 :
625 : protected:
626 : virtual
627 : ~ctype();
628 :
629 : virtual bool
630 : do_is(mask __m, char_type __c) const;
631 :
632 : virtual const char_type*
633 : do_is(const char_type* __lo, const char_type* __hi, mask* __vec) const;
634 :
635 : virtual const char_type*
636 : do_scan_is(mask __m, const char_type* __lo, const char_type* __hi) const;
637 :
638 : virtual const char_type*
639 : do_scan_not(mask __m, const char_type* __lo,
640 : const char_type* __hi) const;
641 :
642 : virtual char_type
643 : do_toupper(char_type __c) const;
644 :
645 : virtual const char_type*
646 : do_toupper(char_type* __lo, const char_type* __hi) const;
647 :
648 : virtual char_type
649 : do_tolower(char_type __c) const;
650 :
651 : virtual const char_type*
652 : do_tolower(char_type* __lo, const char_type* __hi) const;
653 :
654 : virtual char_type
655 : do_widen(char __c) const;
656 :
657 : virtual const char*
658 : do_widen(const char* __lo, const char* __hi, char_type* __dest) const;
659 :
660 : virtual char
661 : do_narrow(char_type, char __dfault) const;
662 :
663 : virtual const char_type*
664 : do_narrow(const char_type* __lo, const char_type* __hi,
665 : char __dfault, char* __to) const;
666 : };
667 :
668 : template<typename _CharT>
669 : locale::id ctype<_CharT>::id;
670 :
671 : /**
672 : * @brief The ctype<char> specialization.
673 : * @ingroup locales
674 : *
675 : * This class defines classification and conversion functions for
676 : * the char type. It gets used by char streams for many I/O
677 : * operations. The char specialization provides a number of
678 : * optimizations as well.
679 : */
680 : template<>
681 : class ctype<char> : public locale::facet, public ctype_base
682 : {
683 : public:
684 : // Types:
685 : /// Typedef for the template parameter char.
686 : typedef char char_type;
687 :
688 : protected:
689 : // Data Members:
690 : __c_locale _M_c_locale_ctype;
691 : bool _M_del;
692 : __to_type _M_toupper;
693 : __to_type _M_tolower;
694 : const mask* _M_table;
695 : mutable char _M_widen_ok;
696 : mutable char _M_widen[1 + static_cast<unsigned char>(-1)];
697 : mutable char _M_narrow[1 + static_cast<unsigned char>(-1)];
698 : mutable char _M_narrow_ok; // 0 uninitialized, 1 init,
699 : // 2 memcpy can't be used
700 :
701 : public:
702 : /// The facet id for ctype<char>
703 : static locale::id id;
704 : /// The size of the mask table. It is SCHAR_MAX + 1.
705 : static const size_t table_size = 1 + static_cast<unsigned char>(-1);
706 :
707 : /**
708 : * @brief Constructor performs initialization.
709 : *
710 : * This is the constructor provided by the standard.
711 : *
712 : * @param __table If non-zero, table is used as the per-char mask.
713 : * Else classic_table() is used.
714 : * @param __del If true, passes ownership of table to this facet.
715 : * @param __refs Passed to the base facet class.
716 : */
717 : explicit
718 : ctype(const mask* __table = 0, bool __del = false, size_t __refs = 0);
719 :
720 : /**
721 : * @brief Constructor performs static initialization.
722 : *
723 : * This constructor is used to construct the initial C locale facet.
724 : *
725 : * @param __cloc Handle to C locale data.
726 : * @param __table If non-zero, table is used as the per-char mask.
727 : * @param __del If true, passes ownership of table to this facet.
728 : * @param __refs Passed to the base facet class.
729 : */
730 : explicit
731 : ctype(__c_locale __cloc, const mask* __table = 0, bool __del = false,
732 : size_t __refs = 0);
733 :
734 : /**
735 : * @brief Test char classification.
736 : *
737 : * This function compares the mask table[c] to @a __m.
738 : *
739 : * @param __c The char to compare the mask of.
740 : * @param __m The mask to compare against.
741 : * @return True if __m & table[__c] is true, false otherwise.
742 : */
743 : inline bool
744 : is(mask __m, char __c) const;
745 :
746 : /**
747 : * @brief Return a mask array.
748 : *
749 : * This function finds the mask for each char in the range [lo, hi) and
750 : * successively writes it to vec. vec must have as many elements as
751 : * the char array.
752 : *
753 : * @param __lo Pointer to start of range.
754 : * @param __hi Pointer to end of range.
755 : * @param __vec Pointer to an array of mask storage.
756 : * @return @a __hi.
757 : */
758 : inline const char*
759 : is(const char* __lo, const char* __hi, mask* __vec) const;
760 :
761 : /**
762 : * @brief Find char matching a mask
763 : *
764 : * This function searches for and returns the first char in [lo,hi) for
765 : * which is(m,char) is true.
766 : *
767 : * @param __m The mask to compare against.
768 : * @param __lo Pointer to start of range.
769 : * @param __hi Pointer to end of range.
770 : * @return Pointer to a matching char if found, else @a __hi.
771 : */
772 : inline const char*
773 : scan_is(mask __m, const char* __lo, const char* __hi) const;
774 :
775 : /**
776 : * @brief Find char not matching a mask
777 : *
778 : * This function searches for and returns a pointer to the first char
779 : * in [__lo,__hi) for which is(m,char) is false.
780 : *
781 : * @param __m The mask to compare against.
782 : * @param __lo Pointer to start of range.
783 : * @param __hi Pointer to end of range.
784 : * @return Pointer to a non-matching char if found, else @a __hi.
785 : */
786 : inline const char*
787 : scan_not(mask __m, const char* __lo, const char* __hi) const;
788 :
789 : /**
790 : * @brief Convert to uppercase.
791 : *
792 : * This function converts the char argument to uppercase if possible.
793 : * If not possible (for example, '2'), returns the argument.
794 : *
795 : * toupper() acts as if it returns ctype<char>::do_toupper(c).
796 : * do_toupper() must always return the same result for the same input.
797 : *
798 : * @param __c The char to convert.
799 : * @return The uppercase char if convertible, else @a __c.
800 : */
801 : char_type
802 0 : toupper(char_type __c) const
803 0 : { return this->do_toupper(__c); }
804 :
805 : /**
806 : * @brief Convert array to uppercase.
807 : *
808 : * This function converts each char in the range [__lo,__hi) to uppercase
809 : * if possible. Other chars remain untouched.
810 : *
811 : * toupper() acts as if it returns ctype<char>:: do_toupper(__lo, __hi).
812 : * do_toupper() must always return the same result for the same input.
813 : *
814 : * @param __lo Pointer to first char in range.
815 : * @param __hi Pointer to end of range.
816 : * @return @a __hi.
817 : */
818 : const char_type*
819 : toupper(char_type *__lo, const char_type* __hi) const
820 : { return this->do_toupper(__lo, __hi); }
821 :
822 : /**
823 : * @brief Convert to lowercase.
824 : *
825 : * This function converts the char argument to lowercase if possible.
826 : * If not possible (for example, '2'), returns the argument.
827 : *
828 : * tolower() acts as if it returns ctype<char>::do_tolower(__c).
829 : * do_tolower() must always return the same result for the same input.
830 : *
831 : * @param __c The char to convert.
832 : * @return The lowercase char if convertible, else @a __c.
833 : */
834 : char_type
835 14240 : tolower(char_type __c) const
836 0 : { return this->do_tolower(__c); }
837 :
838 : /**
839 : * @brief Convert array to lowercase.
840 : *
841 : * This function converts each char in the range [lo,hi) to lowercase
842 : * if possible. Other chars remain untouched.
843 : *
844 : * tolower() acts as if it returns ctype<char>:: do_tolower(__lo, __hi).
845 : * do_tolower() must always return the same result for the same input.
846 : *
847 : * @param __lo Pointer to first char in range.
848 : * @param __hi Pointer to end of range.
849 : * @return @a __hi.
850 : */
851 : const char_type*
852 1212850 : tolower(char_type* __lo, const char_type* __hi) const
853 1212850 : { return this->do_tolower(__lo, __hi); }
854 :
855 : /**
856 : * @brief Widen char
857 : *
858 : * This function converts the char to char_type using the simplest
859 : * reasonable transformation. For an underived ctype<char> facet, the
860 : * argument will be returned unchanged.
861 : *
862 : * This function works as if it returns ctype<char>::do_widen(c).
863 : * do_widen() must always return the same result for the same input.
864 : *
865 : * Note: this is not what you want for codepage conversions. See
866 : * codecvt for that.
867 : *
868 : * @param __c The char to convert.
869 : * @return The converted character.
870 : */
871 : char_type
872 1973552 : widen(char __c) const
873 : {
874 1973552 : if (_M_widen_ok)
875 1973552 : return _M_widen[static_cast<unsigned char>(__c)];
876 0 : this->_M_widen_init();
877 0 : return this->do_widen(__c);
878 : }
879 :
880 : /**
881 : * @brief Widen char array
882 : *
883 : * This function converts each char in the input to char using the
884 : * simplest reasonable transformation. For an underived ctype<char>
885 : * facet, the argument will be copied unchanged.
886 : *
887 : * This function works as if it returns ctype<char>::do_widen(c).
888 : * do_widen() must always return the same result for the same input.
889 : *
890 : * Note: this is not what you want for codepage conversions. See
891 : * codecvt for that.
892 : *
893 : * @param __lo Pointer to first char in range.
894 : * @param __hi Pointer to end of range.
895 : * @param __to Pointer to the destination array.
896 : * @return @a __hi.
897 : */
898 : const char*
899 : widen(const char* __lo, const char* __hi, char_type* __to) const
900 : {
901 : if (_M_widen_ok == 1)
902 : {
903 : if (__builtin_expect(__hi != __lo, true))
904 : __builtin_memcpy(__to, __lo, __hi - __lo);
905 : return __hi;
906 : }
907 : if (!_M_widen_ok)
908 : _M_widen_init();
909 : return this->do_widen(__lo, __hi, __to);
910 : }
911 :
912 : /**
913 : * @brief Narrow char
914 : *
915 : * This function converts the char to char using the simplest
916 : * reasonable transformation. If the conversion fails, dfault is
917 : * returned instead. For an underived ctype<char> facet, @a c
918 : * will be returned unchanged.
919 : *
920 : * This function works as if it returns ctype<char>::do_narrow(c).
921 : * do_narrow() must always return the same result for the same input.
922 : *
923 : * Note: this is not what you want for codepage conversions. See
924 : * codecvt for that.
925 : *
926 : * @param __c The char to convert.
927 : * @param __dfault Char to return if conversion fails.
928 : * @return The converted character.
929 : */
930 : char
931 4775 : narrow(char_type __c, char __dfault) const
932 : {
933 4775 : if (_M_narrow[static_cast<unsigned char>(__c)])
934 : return _M_narrow[static_cast<unsigned char>(__c)];
935 270 : const char __t = do_narrow(__c, __dfault);
936 270 : if (__t != __dfault)
937 270 : _M_narrow[static_cast<unsigned char>(__c)] = __t;
938 : return __t;
939 : }
940 :
941 : /**
942 : * @brief Narrow char array
943 : *
944 : * This function converts each char in the input to char using the
945 : * simplest reasonable transformation and writes the results to the
946 : * destination array. For any char in the input that cannot be
947 : * converted, @a dfault is used instead. For an underived ctype<char>
948 : * facet, the argument will be copied unchanged.
949 : *
950 : * This function works as if it returns ctype<char>::do_narrow(lo, hi,
951 : * dfault, to). do_narrow() must always return the same result for the
952 : * same input.
953 : *
954 : * Note: this is not what you want for codepage conversions. See
955 : * codecvt for that.
956 : *
957 : * @param __lo Pointer to start of range.
958 : * @param __hi Pointer to end of range.
959 : * @param __dfault Char to use if conversion fails.
960 : * @param __to Pointer to the destination array.
961 : * @return @a __hi.
962 : */
963 : const char_type*
964 : narrow(const char_type* __lo, const char_type* __hi,
965 : char __dfault, char* __to) const
966 : {
967 : if (__builtin_expect(_M_narrow_ok == 1, true))
968 : {
969 : if (__builtin_expect(__hi != __lo, true))
970 : __builtin_memcpy(__to, __lo, __hi - __lo);
971 : return __hi;
972 : }
973 : if (!_M_narrow_ok)
974 : _M_narrow_init();
975 : return this->do_narrow(__lo, __hi, __dfault, __to);
976 : }
977 :
978 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
979 : // DR 695. ctype<char>::classic_table() not accessible.
980 : /// Returns a pointer to the mask table provided to the constructor, or
981 : /// the default from classic_table() if none was provided.
982 : const mask*
983 : table() const throw()
984 : { return _M_table; }
985 :
986 : /// Returns a pointer to the C locale mask table.
987 : static const mask*
988 : classic_table() throw();
989 : protected:
990 :
991 : /**
992 : * @brief Destructor.
993 : *
994 : * This function deletes table() if @a del was true in the
995 : * constructor.
996 : */
997 : virtual
998 : ~ctype();
999 :
1000 : /**
1001 : * @brief Convert to uppercase.
1002 : *
1003 : * This virtual function converts the char argument to uppercase if
1004 : * possible. If not possible (for example, '2'), returns the argument.
1005 : *
1006 : * do_toupper() is a hook for a derived facet to change the behavior of
1007 : * uppercasing. do_toupper() must always return the same result for
1008 : * the same input.
1009 : *
1010 : * @param __c The char to convert.
1011 : * @return The uppercase char if convertible, else @a __c.
1012 : */
1013 : virtual char_type
1014 : do_toupper(char_type __c) const;
1015 :
1016 : /**
1017 : * @brief Convert array to uppercase.
1018 : *
1019 : * This virtual function converts each char in the range [lo,hi) to
1020 : * uppercase if possible. Other chars remain untouched.
1021 : *
1022 : * do_toupper() is a hook for a derived facet to change the behavior of
1023 : * uppercasing. do_toupper() must always return the same result for
1024 : * the same input.
1025 : *
1026 : * @param __lo Pointer to start of range.
1027 : * @param __hi Pointer to end of range.
1028 : * @return @a __hi.
1029 : */
1030 : virtual const char_type*
1031 : do_toupper(char_type* __lo, const char_type* __hi) const;
1032 :
1033 : /**
1034 : * @brief Convert to lowercase.
1035 : *
1036 : * This virtual function converts the char argument to lowercase if
1037 : * possible. If not possible (for example, '2'), returns the argument.
1038 : *
1039 : * do_tolower() is a hook for a derived facet to change the behavior of
1040 : * lowercasing. do_tolower() must always return the same result for
1041 : * the same input.
1042 : *
1043 : * @param __c The char to convert.
1044 : * @return The lowercase char if convertible, else @a __c.
1045 : */
1046 : virtual char_type
1047 : do_tolower(char_type __c) const;
1048 :
1049 : /**
1050 : * @brief Convert array to lowercase.
1051 : *
1052 : * This virtual function converts each char in the range [lo,hi) to
1053 : * lowercase if possible. Other chars remain untouched.
1054 : *
1055 : * do_tolower() is a hook for a derived facet to change the behavior of
1056 : * lowercasing. do_tolower() must always return the same result for
1057 : * the same input.
1058 : *
1059 : * @param __lo Pointer to first char in range.
1060 : * @param __hi Pointer to end of range.
1061 : * @return @a __hi.
1062 : */
1063 : virtual const char_type*
1064 : do_tolower(char_type* __lo, const char_type* __hi) const;
1065 :
1066 : /**
1067 : * @brief Widen char
1068 : *
1069 : * This virtual function converts the char to char using the simplest
1070 : * reasonable transformation. For an underived ctype<char> facet, the
1071 : * argument will be returned unchanged.
1072 : *
1073 : * do_widen() is a hook for a derived facet to change the behavior of
1074 : * widening. do_widen() must always return the same result for the
1075 : * same input.
1076 : *
1077 : * Note: this is not what you want for codepage conversions. See
1078 : * codecvt for that.
1079 : *
1080 : * @param __c The char to convert.
1081 : * @return The converted character.
1082 : */
1083 : virtual char_type
1084 0 : do_widen(char __c) const
1085 0 : { return __c; }
1086 :
1087 : /**
1088 : * @brief Widen char array
1089 : *
1090 : * This function converts each char in the range [lo,hi) to char using
1091 : * the simplest reasonable transformation. For an underived
1092 : * ctype<char> facet, the argument will be copied unchanged.
1093 : *
1094 : * do_widen() is a hook for a derived facet to change the behavior of
1095 : * widening. do_widen() must always return the same result for the
1096 : * same input.
1097 : *
1098 : * Note: this is not what you want for codepage conversions. See
1099 : * codecvt for that.
1100 : *
1101 : * @param __lo Pointer to start of range.
1102 : * @param __hi Pointer to end of range.
1103 : * @param __to Pointer to the destination array.
1104 : * @return @a __hi.
1105 : */
1106 : virtual const char*
1107 : do_widen(const char* __lo, const char* __hi, char_type* __to) const
1108 : {
1109 : if (__builtin_expect(__hi != __lo, true))
1110 : __builtin_memcpy(__to, __lo, __hi - __lo);
1111 : return __hi;
1112 : }
1113 :
1114 : /**
1115 : * @brief Narrow char
1116 : *
1117 : * This virtual function converts the char to char using the simplest
1118 : * reasonable transformation. If the conversion fails, dfault is
1119 : * returned instead. For an underived ctype<char> facet, @a c will be
1120 : * returned unchanged.
1121 : *
1122 : * do_narrow() is a hook for a derived facet to change the behavior of
1123 : * narrowing. do_narrow() must always return the same result for the
1124 : * same input.
1125 : *
1126 : * Note: this is not what you want for codepage conversions. See
1127 : * codecvt for that.
1128 : *
1129 : * @param __c The char to convert.
1130 : * @param __dfault Char to return if conversion fails.
1131 : * @return The converted char.
1132 : */
1133 : virtual char
1134 270 : do_narrow(char_type __c, char __dfault __attribute__((__unused__))) const
1135 270 : { return __c; }
1136 :
1137 : /**
1138 : * @brief Narrow char array to char array
1139 : *
1140 : * This virtual function converts each char in the range [lo,hi) to
1141 : * char using the simplest reasonable transformation and writes the
1142 : * results to the destination array. For any char in the input that
1143 : * cannot be converted, @a dfault is used instead. For an underived
1144 : * ctype<char> facet, the argument will be copied unchanged.
1145 : *
1146 : * do_narrow() is a hook for a derived facet to change the behavior of
1147 : * narrowing. do_narrow() must always return the same result for the
1148 : * same input.
1149 : *
1150 : * Note: this is not what you want for codepage conversions. See
1151 : * codecvt for that.
1152 : *
1153 : * @param __lo Pointer to start of range.
1154 : * @param __hi Pointer to end of range.
1155 : * @param __dfault Char to use if conversion fails.
1156 : * @param __to Pointer to the destination array.
1157 : * @return @a __hi.
1158 : */
1159 : virtual const char_type*
1160 : do_narrow(const char_type* __lo, const char_type* __hi,
1161 : char __dfault __attribute__((__unused__)), char* __to) const
1162 : {
1163 : if (__builtin_expect(__hi != __lo, true))
1164 : __builtin_memcpy(__to, __lo, __hi - __lo);
1165 : return __hi;
1166 : }
1167 :
1168 : private:
1169 : void _M_narrow_init() const;
1170 : void _M_widen_init() const;
1171 : };
1172 :
1173 : #ifdef _GLIBCXX_USE_WCHAR_T
1174 : /**
1175 : * @brief The ctype<wchar_t> specialization.
1176 : * @ingroup locales
1177 : *
1178 : * This class defines classification and conversion functions for the
1179 : * wchar_t type. It gets used by wchar_t streams for many I/O operations.
1180 : * The wchar_t specialization provides a number of optimizations as well.
1181 : *
1182 : * ctype<wchar_t> inherits its public methods from
1183 : * __ctype_abstract_base<wchar_t>.
1184 : */
1185 : template<>
1186 : class ctype<wchar_t> : public __ctype_abstract_base<wchar_t>
1187 : {
1188 : public:
1189 : // Types:
1190 : /// Typedef for the template parameter wchar_t.
1191 : typedef wchar_t char_type;
1192 : typedef wctype_t __wmask_type;
1193 :
1194 : protected:
1195 : __c_locale _M_c_locale_ctype;
1196 :
1197 : // Pre-computed narrowed and widened chars.
1198 : bool _M_narrow_ok;
1199 : char _M_narrow[128];
1200 : wint_t _M_widen[1 + static_cast<unsigned char>(-1)];
1201 :
1202 : // Pre-computed elements for do_is.
1203 : mask _M_bit[16];
1204 : __wmask_type _M_wmask[16];
1205 :
1206 : public:
1207 : // Data Members:
1208 : /// The facet id for ctype<wchar_t>
1209 : static locale::id id;
1210 :
1211 : /**
1212 : * @brief Constructor performs initialization.
1213 : *
1214 : * This is the constructor provided by the standard.
1215 : *
1216 : * @param __refs Passed to the base facet class.
1217 : */
1218 : explicit
1219 : ctype(size_t __refs = 0);
1220 :
1221 : /**
1222 : * @brief Constructor performs static initialization.
1223 : *
1224 : * This constructor is used to construct the initial C locale facet.
1225 : *
1226 : * @param __cloc Handle to C locale data.
1227 : * @param __refs Passed to the base facet class.
1228 : */
1229 : explicit
1230 : ctype(__c_locale __cloc, size_t __refs = 0);
1231 :
1232 : protected:
1233 : __wmask_type
1234 : _M_convert_to_wmask(const mask __m) const throw();
1235 :
1236 : /// Destructor
1237 : virtual
1238 : ~ctype();
1239 :
1240 : /**
1241 : * @brief Test wchar_t classification.
1242 : *
1243 : * This function finds a mask M for @a c and compares it to mask @a m.
1244 : *
1245 : * do_is() is a hook for a derived facet to change the behavior of
1246 : * classifying. do_is() must always return the same result for the
1247 : * same input.
1248 : *
1249 : * @param __c The wchar_t to find the mask of.
1250 : * @param __m The mask to compare against.
1251 : * @return (M & __m) != 0.
1252 : */
1253 : virtual bool
1254 : do_is(mask __m, char_type __c) const;
1255 :
1256 : /**
1257 : * @brief Return a mask array.
1258 : *
1259 : * This function finds the mask for each wchar_t in the range [lo,hi)
1260 : * and successively writes it to vec. vec must have as many elements
1261 : * as the input.
1262 : *
1263 : * do_is() is a hook for a derived facet to change the behavior of
1264 : * classifying. do_is() must always return the same result for the
1265 : * same input.
1266 : *
1267 : * @param __lo Pointer to start of range.
1268 : * @param __hi Pointer to end of range.
1269 : * @param __vec Pointer to an array of mask storage.
1270 : * @return @a __hi.
1271 : */
1272 : virtual const char_type*
1273 : do_is(const char_type* __lo, const char_type* __hi, mask* __vec) const;
1274 :
1275 : /**
1276 : * @brief Find wchar_t matching mask
1277 : *
1278 : * This function searches for and returns the first wchar_t c in
1279 : * [__lo,__hi) for which is(__m,c) is true.
1280 : *
1281 : * do_scan_is() is a hook for a derived facet to change the behavior of
1282 : * match searching. do_is() must always return the same result for the
1283 : * same input.
1284 : *
1285 : * @param __m The mask to compare against.
1286 : * @param __lo Pointer to start of range.
1287 : * @param __hi Pointer to end of range.
1288 : * @return Pointer to a matching wchar_t if found, else @a __hi.
1289 : */
1290 : virtual const char_type*
1291 : do_scan_is(mask __m, const char_type* __lo, const char_type* __hi) const;
1292 :
1293 : /**
1294 : * @brief Find wchar_t not matching mask
1295 : *
1296 : * This function searches for and returns a pointer to the first
1297 : * wchar_t c of [__lo,__hi) for which is(__m,c) is false.
1298 : *
1299 : * do_scan_is() is a hook for a derived facet to change the behavior of
1300 : * match searching. do_is() must always return the same result for the
1301 : * same input.
1302 : *
1303 : * @param __m The mask to compare against.
1304 : * @param __lo Pointer to start of range.
1305 : * @param __hi Pointer to end of range.
1306 : * @return Pointer to a non-matching wchar_t if found, else @a __hi.
1307 : */
1308 : virtual const char_type*
1309 : do_scan_not(mask __m, const char_type* __lo,
1310 : const char_type* __hi) const;
1311 :
1312 : /**
1313 : * @brief Convert to uppercase.
1314 : *
1315 : * This virtual function converts the wchar_t argument to uppercase if
1316 : * possible. If not possible (for example, '2'), returns the argument.
1317 : *
1318 : * do_toupper() is a hook for a derived facet to change the behavior of
1319 : * uppercasing. do_toupper() must always return the same result for
1320 : * the same input.
1321 : *
1322 : * @param __c The wchar_t to convert.
1323 : * @return The uppercase wchar_t if convertible, else @a __c.
1324 : */
1325 : virtual char_type
1326 : do_toupper(char_type __c) const;
1327 :
1328 : /**
1329 : * @brief Convert array to uppercase.
1330 : *
1331 : * This virtual function converts each wchar_t in the range [lo,hi) to
1332 : * uppercase if possible. Other elements remain untouched.
1333 : *
1334 : * do_toupper() is a hook for a derived facet to change the behavior of
1335 : * uppercasing. do_toupper() must always return the same result for
1336 : * the same input.
1337 : *
1338 : * @param __lo Pointer to start of range.
1339 : * @param __hi Pointer to end of range.
1340 : * @return @a __hi.
1341 : */
1342 : virtual const char_type*
1343 : do_toupper(char_type* __lo, const char_type* __hi) const;
1344 :
1345 : /**
1346 : * @brief Convert to lowercase.
1347 : *
1348 : * This virtual function converts the argument to lowercase if
1349 : * possible. If not possible (for example, '2'), returns the argument.
1350 : *
1351 : * do_tolower() is a hook for a derived facet to change the behavior of
1352 : * lowercasing. do_tolower() must always return the same result for
1353 : * the same input.
1354 : *
1355 : * @param __c The wchar_t to convert.
1356 : * @return The lowercase wchar_t if convertible, else @a __c.
1357 : */
1358 : virtual char_type
1359 : do_tolower(char_type __c) const;
1360 :
1361 : /**
1362 : * @brief Convert array to lowercase.
1363 : *
1364 : * This virtual function converts each wchar_t in the range [lo,hi) to
1365 : * lowercase if possible. Other elements remain untouched.
1366 : *
1367 : * do_tolower() is a hook for a derived facet to change the behavior of
1368 : * lowercasing. do_tolower() must always return the same result for
1369 : * the same input.
1370 : *
1371 : * @param __lo Pointer to start of range.
1372 : * @param __hi Pointer to end of range.
1373 : * @return @a __hi.
1374 : */
1375 : virtual const char_type*
1376 : do_tolower(char_type* __lo, const char_type* __hi) const;
1377 :
1378 : /**
1379 : * @brief Widen char to wchar_t
1380 : *
1381 : * This virtual function converts the char to wchar_t using the
1382 : * simplest reasonable transformation. For an underived ctype<wchar_t>
1383 : * facet, the argument will be cast to wchar_t.
1384 : *
1385 : * do_widen() is a hook for a derived facet to change the behavior of
1386 : * widening. do_widen() must always return the same result for the
1387 : * same input.
1388 : *
1389 : * Note: this is not what you want for codepage conversions. See
1390 : * codecvt for that.
1391 : *
1392 : * @param __c The char to convert.
1393 : * @return The converted wchar_t.
1394 : */
1395 : virtual char_type
1396 : do_widen(char __c) const;
1397 :
1398 : /**
1399 : * @brief Widen char array to wchar_t array
1400 : *
1401 : * This function converts each char in the input to wchar_t using the
1402 : * simplest reasonable transformation. For an underived ctype<wchar_t>
1403 : * facet, the argument will be copied, casting each element to wchar_t.
1404 : *
1405 : * do_widen() is a hook for a derived facet to change the behavior of
1406 : * widening. do_widen() must always return the same result for the
1407 : * same input.
1408 : *
1409 : * Note: this is not what you want for codepage conversions. See
1410 : * codecvt for that.
1411 : *
1412 : * @param __lo Pointer to start range.
1413 : * @param __hi Pointer to end of range.
1414 : * @param __to Pointer to the destination array.
1415 : * @return @a __hi.
1416 : */
1417 : virtual const char*
1418 : do_widen(const char* __lo, const char* __hi, char_type* __to) const;
1419 :
1420 : /**
1421 : * @brief Narrow wchar_t to char
1422 : *
1423 : * This virtual function converts the argument to char using
1424 : * the simplest reasonable transformation. If the conversion
1425 : * fails, dfault is returned instead. For an underived
1426 : * ctype<wchar_t> facet, @a c will be cast to char and
1427 : * returned.
1428 : *
1429 : * do_narrow() is a hook for a derived facet to change the
1430 : * behavior of narrowing. do_narrow() must always return the
1431 : * same result for the same input.
1432 : *
1433 : * Note: this is not what you want for codepage conversions. See
1434 : * codecvt for that.
1435 : *
1436 : * @param __c The wchar_t to convert.
1437 : * @param __dfault Char to return if conversion fails.
1438 : * @return The converted char.
1439 : */
1440 : virtual char
1441 : do_narrow(char_type __c, char __dfault) const;
1442 :
1443 : /**
1444 : * @brief Narrow wchar_t array to char array
1445 : *
1446 : * This virtual function converts each wchar_t in the range [lo,hi) to
1447 : * char using the simplest reasonable transformation and writes the
1448 : * results to the destination array. For any wchar_t in the input that
1449 : * cannot be converted, @a dfault is used instead. For an underived
1450 : * ctype<wchar_t> facet, the argument will be copied, casting each
1451 : * element to char.
1452 : *
1453 : * do_narrow() is a hook for a derived facet to change the behavior of
1454 : * narrowing. do_narrow() must always return the same result for the
1455 : * same input.
1456 : *
1457 : * Note: this is not what you want for codepage conversions. See
1458 : * codecvt for that.
1459 : *
1460 : * @param __lo Pointer to start of range.
1461 : * @param __hi Pointer to end of range.
1462 : * @param __dfault Char to use if conversion fails.
1463 : * @param __to Pointer to the destination array.
1464 : * @return @a __hi.
1465 : */
1466 : virtual const char_type*
1467 : do_narrow(const char_type* __lo, const char_type* __hi,
1468 : char __dfault, char* __to) const;
1469 :
1470 : // For use at construction time only.
1471 : void
1472 : _M_initialize_ctype() throw();
1473 : };
1474 : #endif //_GLIBCXX_USE_WCHAR_T
1475 :
1476 : /// class ctype_byname [22.2.1.2].
1477 : template<typename _CharT>
1478 : class ctype_byname : public ctype<_CharT>
1479 : {
1480 : public:
1481 : typedef typename ctype<_CharT>::mask mask;
1482 :
1483 : explicit
1484 : ctype_byname(const char* __s, size_t __refs = 0);
1485 :
1486 : #if __cplusplus >= 201103L
1487 : explicit
1488 : ctype_byname(const string& __s, size_t __refs = 0)
1489 : : ctype_byname(__s.c_str(), __refs) { }
1490 : #endif
1491 :
1492 : protected:
1493 : virtual
1494 : ~ctype_byname() { }
1495 : };
1496 :
1497 : /// 22.2.1.4 Class ctype_byname specializations.
1498 : template<>
1499 : class ctype_byname<char> : public ctype<char>
1500 : {
1501 : public:
1502 : explicit
1503 : ctype_byname(const char* __s, size_t __refs = 0);
1504 :
1505 : #if __cplusplus >= 201103L
1506 : explicit
1507 : ctype_byname(const string& __s, size_t __refs = 0);
1508 : #endif
1509 :
1510 : protected:
1511 : virtual
1512 : ~ctype_byname();
1513 : };
1514 :
1515 : #ifdef _GLIBCXX_USE_WCHAR_T
1516 : template<>
1517 : class ctype_byname<wchar_t> : public ctype<wchar_t>
1518 : {
1519 : public:
1520 : explicit
1521 : ctype_byname(const char* __s, size_t __refs = 0);
1522 :
1523 : #if __cplusplus >= 201103L
1524 : explicit
1525 : ctype_byname(const string& __s, size_t __refs = 0);
1526 : #endif
1527 :
1528 : protected:
1529 : virtual
1530 : ~ctype_byname();
1531 : };
1532 : #endif
1533 :
1534 : _GLIBCXX_END_NAMESPACE_VERSION
1535 : } // namespace
1536 :
1537 : // Include host and configuration specific ctype inlines.
1538 : #include <bits/ctype_inline.h>
1539 :
1540 : namespace std _GLIBCXX_VISIBILITY(default)
1541 : {
1542 : _GLIBCXX_BEGIN_NAMESPACE_VERSION
1543 :
1544 : // 22.2.2 The numeric category.
1545 : class __num_base
1546 : {
1547 : public:
1548 : // NB: Code depends on the order of _S_atoms_out elements.
1549 : // Below are the indices into _S_atoms_out.
1550 : enum
1551 : {
1552 : _S_ominus,
1553 : _S_oplus,
1554 : _S_ox,
1555 : _S_oX,
1556 : _S_odigits,
1557 : _S_odigits_end = _S_odigits + 16,
1558 : _S_oudigits = _S_odigits_end,
1559 : _S_oudigits_end = _S_oudigits + 16,
1560 : _S_oe = _S_odigits + 14, // For scientific notation, 'e'
1561 : _S_oE = _S_oudigits + 14, // For scientific notation, 'E'
1562 : _S_oend = _S_oudigits_end
1563 : };
1564 :
1565 : // A list of valid numeric literals for output. This array
1566 : // contains chars that will be passed through the current locale's
1567 : // ctype<_CharT>.widen() and then used to render numbers.
1568 : // For the standard "C" locale, this is
1569 : // "-+xX0123456789abcdef0123456789ABCDEF".
1570 : static const char* _S_atoms_out;
1571 :
1572 : // String literal of acceptable (narrow) input, for num_get.
1573 : // "-+xX0123456789abcdefABCDEF"
1574 : static const char* _S_atoms_in;
1575 :
1576 : enum
1577 : {
1578 : _S_iminus,
1579 : _S_iplus,
1580 : _S_ix,
1581 : _S_iX,
1582 : _S_izero,
1583 : _S_ie = _S_izero + 14,
1584 : _S_iE = _S_izero + 20,
1585 : _S_iend = 26
1586 : };
1587 :
1588 : // num_put
1589 : // Construct and return valid scanf format for floating point types.
1590 : static void
1591 : _S_format_float(const ios_base& __io, char* __fptr, char __mod) throw();
1592 : };
1593 :
1594 : template<typename _CharT>
1595 : struct __numpunct_cache : public locale::facet
1596 : {
1597 : const char* _M_grouping;
1598 : size_t _M_grouping_size;
1599 : bool _M_use_grouping;
1600 : const _CharT* _M_truename;
1601 : size_t _M_truename_size;
1602 : const _CharT* _M_falsename;
1603 : size_t _M_falsename_size;
1604 : _CharT _M_decimal_point;
1605 : _CharT _M_thousands_sep;
1606 :
1607 : // A list of valid numeric literals for output: in the standard
1608 : // "C" locale, this is "-+xX0123456789abcdef0123456789ABCDEF".
1609 : // This array contains the chars after having been passed
1610 : // through the current locale's ctype<_CharT>.widen().
1611 : _CharT _M_atoms_out[__num_base::_S_oend];
1612 :
1613 : // A list of valid numeric literals for input: in the standard
1614 : // "C" locale, this is "-+xX0123456789abcdefABCDEF"
1615 : // This array contains the chars after having been passed
1616 : // through the current locale's ctype<_CharT>.widen().
1617 : _CharT _M_atoms_in[__num_base::_S_iend];
1618 :
1619 : bool _M_allocated;
1620 :
1621 : __numpunct_cache(size_t __refs = 0)
1622 : : facet(__refs), _M_grouping(0), _M_grouping_size(0),
1623 : _M_use_grouping(false),
1624 : _M_truename(0), _M_truename_size(0), _M_falsename(0),
1625 : _M_falsename_size(0), _M_decimal_point(_CharT()),
1626 : _M_thousands_sep(_CharT()), _M_allocated(false)
1627 : { }
1628 :
1629 : ~__numpunct_cache();
1630 :
1631 : void
1632 : _M_cache(const locale& __loc);
1633 :
1634 : private:
1635 : __numpunct_cache&
1636 : operator=(const __numpunct_cache&);
1637 :
1638 : explicit
1639 : __numpunct_cache(const __numpunct_cache&);
1640 : };
1641 :
1642 : template<typename _CharT>
1643 : __numpunct_cache<_CharT>::~__numpunct_cache()
1644 : {
1645 : if (_M_allocated)
1646 : {
1647 : delete [] _M_grouping;
1648 : delete [] _M_truename;
1649 : delete [] _M_falsename;
1650 : }
1651 : }
1652 :
1653 : _GLIBCXX_BEGIN_NAMESPACE_CXX11
1654 :
1655 : /**
1656 : * @brief Primary class template numpunct.
1657 : * @ingroup locales
1658 : *
1659 : * This facet stores several pieces of information related to printing and
1660 : * scanning numbers, such as the decimal point character. It takes a
1661 : * template parameter specifying the char type. The numpunct facet is
1662 : * used by streams for many I/O operations involving numbers.
1663 : *
1664 : * The numpunct template uses protected virtual functions to provide the
1665 : * actual results. The public accessors forward the call to the virtual
1666 : * functions. These virtual functions are hooks for developers to
1667 : * implement the behavior they require from a numpunct facet.
1668 : */
1669 : template<typename _CharT>
1670 : class numpunct : public locale::facet
1671 : {
1672 : public:
1673 : // Types:
1674 : ///@{
1675 : /// Public typedefs
1676 : typedef _CharT char_type;
1677 : typedef basic_string<_CharT> string_type;
1678 : ///@}
1679 : typedef __numpunct_cache<_CharT> __cache_type;
1680 :
1681 : protected:
1682 : __cache_type* _M_data;
1683 :
1684 : public:
1685 : /// Numpunct facet id.
1686 : static locale::id id;
1687 :
1688 : /**
1689 : * @brief Numpunct constructor.
1690 : *
1691 : * @param __refs Refcount to pass to the base class.
1692 : */
1693 : explicit
1694 : numpunct(size_t __refs = 0)
1695 : : facet(__refs), _M_data(0)
1696 : { _M_initialize_numpunct(); }
1697 :
1698 : /**
1699 : * @brief Internal constructor. Not for general use.
1700 : *
1701 : * This is a constructor for use by the library itself to set up the
1702 : * predefined locale facets.
1703 : *
1704 : * @param __cache __numpunct_cache object.
1705 : * @param __refs Refcount to pass to the base class.
1706 : */
1707 : explicit
1708 : numpunct(__cache_type* __cache, size_t __refs = 0)
1709 : : facet(__refs), _M_data(__cache)
1710 : { _M_initialize_numpunct(); }
1711 :
1712 : /**
1713 : * @brief Internal constructor. Not for general use.
1714 : *
1715 : * This is a constructor for use by the library itself to set up new
1716 : * locales.
1717 : *
1718 : * @param __cloc The C locale.
1719 : * @param __refs Refcount to pass to the base class.
1720 : */
1721 : explicit
1722 : numpunct(__c_locale __cloc, size_t __refs = 0)
1723 : : facet(__refs), _M_data(0)
1724 : { _M_initialize_numpunct(__cloc); }
1725 :
1726 : /**
1727 : * @brief Return decimal point character.
1728 : *
1729 : * This function returns a char_type to use as a decimal point. It
1730 : * does so by returning returning
1731 : * numpunct<char_type>::do_decimal_point().
1732 : *
1733 : * @return @a char_type representing a decimal point.
1734 : */
1735 : char_type
1736 0 : decimal_point() const
1737 0 : { return this->do_decimal_point(); }
1738 :
1739 : /**
1740 : * @brief Return thousands separator character.
1741 : *
1742 : * This function returns a char_type to use as a thousands
1743 : * separator. It does so by returning returning
1744 : * numpunct<char_type>::do_thousands_sep().
1745 : *
1746 : * @return char_type representing a thousands separator.
1747 : */
1748 : char_type
1749 0 : thousands_sep() const
1750 0 : { return this->do_thousands_sep(); }
1751 :
1752 : /**
1753 : * @brief Return grouping specification.
1754 : *
1755 : * This function returns a string representing groupings for the
1756 : * integer part of a number. Groupings indicate where thousands
1757 : * separators should be inserted in the integer part of a number.
1758 : *
1759 : * Each char in the return string is interpret as an integer
1760 : * rather than a character. These numbers represent the number
1761 : * of digits in a group. The first char in the string
1762 : * represents the number of digits in the least significant
1763 : * group. If a char is negative, it indicates an unlimited
1764 : * number of digits for the group. If more chars from the
1765 : * string are required to group a number, the last char is used
1766 : * repeatedly.
1767 : *
1768 : * For example, if the grouping() returns "\003\002" and is
1769 : * applied to the number 123456789, this corresponds to
1770 : * 12,34,56,789. Note that if the string was "32", this would
1771 : * put more than 50 digits into the least significant group if
1772 : * the character set is ASCII.
1773 : *
1774 : * The string is returned by calling
1775 : * numpunct<char_type>::do_grouping().
1776 : *
1777 : * @return string representing grouping specification.
1778 : */
1779 : string
1780 0 : grouping() const
1781 0 : { return this->do_grouping(); }
1782 :
1783 : /**
1784 : * @brief Return string representation of bool true.
1785 : *
1786 : * This function returns a string_type containing the text
1787 : * representation for true bool variables. It does so by calling
1788 : * numpunct<char_type>::do_truename().
1789 : *
1790 : * @return string_type representing printed form of true.
1791 : */
1792 : string_type
1793 : truename() const
1794 : { return this->do_truename(); }
1795 :
1796 : /**
1797 : * @brief Return string representation of bool false.
1798 : *
1799 : * This function returns a string_type containing the text
1800 : * representation for false bool variables. It does so by calling
1801 : * numpunct<char_type>::do_falsename().
1802 : *
1803 : * @return string_type representing printed form of false.
1804 : */
1805 : string_type
1806 : falsename() const
1807 : { return this->do_falsename(); }
1808 :
1809 : protected:
1810 : /// Destructor.
1811 : virtual
1812 : ~numpunct();
1813 :
1814 : /**
1815 : * @brief Return decimal point character.
1816 : *
1817 : * Returns a char_type to use as a decimal point. This function is a
1818 : * hook for derived classes to change the value returned.
1819 : *
1820 : * @return @a char_type representing a decimal point.
1821 : */
1822 : virtual char_type
1823 : do_decimal_point() const
1824 : { return _M_data->_M_decimal_point; }
1825 :
1826 : /**
1827 : * @brief Return thousands separator character.
1828 : *
1829 : * Returns a char_type to use as a thousands separator. This function
1830 : * is a hook for derived classes to change the value returned.
1831 : *
1832 : * @return @a char_type representing a thousands separator.
1833 : */
1834 : virtual char_type
1835 : do_thousands_sep() const
1836 : { return _M_data->_M_thousands_sep; }
1837 :
1838 : /**
1839 : * @brief Return grouping specification.
1840 : *
1841 : * Returns a string representing groupings for the integer part of a
1842 : * number. This function is a hook for derived classes to change the
1843 : * value returned. @see grouping() for details.
1844 : *
1845 : * @return String representing grouping specification.
1846 : */
1847 : virtual string
1848 : do_grouping() const
1849 : { return _M_data->_M_grouping; }
1850 :
1851 : /**
1852 : * @brief Return string representation of bool true.
1853 : *
1854 : * Returns a string_type containing the text representation for true
1855 : * bool variables. This function is a hook for derived classes to
1856 : * change the value returned.
1857 : *
1858 : * @return string_type representing printed form of true.
1859 : */
1860 : virtual string_type
1861 : do_truename() const
1862 : { return _M_data->_M_truename; }
1863 :
1864 : /**
1865 : * @brief Return string representation of bool false.
1866 : *
1867 : * Returns a string_type containing the text representation for false
1868 : * bool variables. This function is a hook for derived classes to
1869 : * change the value returned.
1870 : *
1871 : * @return string_type representing printed form of false.
1872 : */
1873 : virtual string_type
1874 : do_falsename() const
1875 : { return _M_data->_M_falsename; }
1876 :
1877 : // For use at construction time only.
1878 : void
1879 : _M_initialize_numpunct(__c_locale __cloc = 0);
1880 : };
1881 :
1882 : template<typename _CharT>
1883 : locale::id numpunct<_CharT>::id;
1884 :
1885 : template<>
1886 : numpunct<char>::~numpunct();
1887 :
1888 : template<>
1889 : void
1890 : numpunct<char>::_M_initialize_numpunct(__c_locale __cloc);
1891 :
1892 : #ifdef _GLIBCXX_USE_WCHAR_T
1893 : template<>
1894 : numpunct<wchar_t>::~numpunct();
1895 :
1896 : template<>
1897 : void
1898 : numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc);
1899 : #endif
1900 :
1901 : /// class numpunct_byname [22.2.3.2].
1902 : template<typename _CharT>
1903 : class numpunct_byname : public numpunct<_CharT>
1904 : {
1905 : public:
1906 : typedef _CharT char_type;
1907 : typedef basic_string<_CharT> string_type;
1908 :
1909 : explicit
1910 : numpunct_byname(const char* __s, size_t __refs = 0)
1911 : : numpunct<_CharT>(__refs)
1912 : {
1913 : if (__builtin_strcmp(__s, "C") != 0
1914 : && __builtin_strcmp(__s, "POSIX") != 0)
1915 : {
1916 : __c_locale __tmp;
1917 : this->_S_create_c_locale(__tmp, __s);
1918 : this->_M_initialize_numpunct(__tmp);
1919 : this->_S_destroy_c_locale(__tmp);
1920 : }
1921 : }
1922 :
1923 : #if __cplusplus >= 201103L
1924 : explicit
1925 : numpunct_byname(const string& __s, size_t __refs = 0)
1926 : : numpunct_byname(__s.c_str(), __refs) { }
1927 : #endif
1928 :
1929 : protected:
1930 : virtual
1931 : ~numpunct_byname() { }
1932 : };
1933 :
1934 : _GLIBCXX_END_NAMESPACE_CXX11
1935 :
1936 : _GLIBCXX_BEGIN_NAMESPACE_LDBL
1937 :
1938 : /**
1939 : * @brief Primary class template num_get.
1940 : * @ingroup locales
1941 : *
1942 : * This facet encapsulates the code to parse and return a number
1943 : * from a string. It is used by the istream numeric extraction
1944 : * operators.
1945 : *
1946 : * The num_get template uses protected virtual functions to provide the
1947 : * actual results. The public accessors forward the call to the virtual
1948 : * functions. These virtual functions are hooks for developers to
1949 : * implement the behavior they require from the num_get facet.
1950 : */
1951 : template<typename _CharT, typename _InIter>
1952 : class num_get : public locale::facet
1953 : {
1954 : public:
1955 : // Types:
1956 : ///@{
1957 : /// Public typedefs
1958 : typedef _CharT char_type;
1959 : typedef _InIter iter_type;
1960 : ///@}
1961 :
1962 : /// Numpunct facet id.
1963 : static locale::id id;
1964 :
1965 : /**
1966 : * @brief Constructor performs initialization.
1967 : *
1968 : * This is the constructor provided by the standard.
1969 : *
1970 : * @param __refs Passed to the base facet class.
1971 : */
1972 : explicit
1973 : num_get(size_t __refs = 0) : facet(__refs) { }
1974 :
1975 : /**
1976 : * @brief Numeric parsing.
1977 : *
1978 : * Parses the input stream into the bool @a v. It does so by calling
1979 : * num_get::do_get().
1980 : *
1981 : * If ios_base::boolalpha is set, attempts to read
1982 : * ctype<CharT>::truename() or ctype<CharT>::falsename(). Sets
1983 : * @a v to true or false if successful. Sets err to
1984 : * ios_base::failbit if reading the string fails. Sets err to
1985 : * ios_base::eofbit if the stream is emptied.
1986 : *
1987 : * If ios_base::boolalpha is not set, proceeds as with reading a long,
1988 : * except if the value is 1, sets @a v to true, if the value is 0, sets
1989 : * @a v to false, and otherwise set err to ios_base::failbit.
1990 : *
1991 : * @param __in Start of input stream.
1992 : * @param __end End of input stream.
1993 : * @param __io Source of locale and flags.
1994 : * @param __err Error flags to set.
1995 : * @param __v Value to format and insert.
1996 : * @return Iterator after reading.
1997 : */
1998 : iter_type
1999 : get(iter_type __in, iter_type __end, ios_base& __io,
2000 : ios_base::iostate& __err, bool& __v) const
2001 : { return this->do_get(__in, __end, __io, __err, __v); }
2002 :
2003 : ///@{
2004 : /**
2005 : * @brief Numeric parsing.
2006 : *
2007 : * Parses the input stream into the integral variable @a v. It does so
2008 : * by calling num_get::do_get().
2009 : *
2010 : * Parsing is affected by the flag settings in @a io.
2011 : *
2012 : * The basic parse is affected by the value of io.flags() &
2013 : * ios_base::basefield. If equal to ios_base::oct, parses like the
2014 : * scanf %o specifier. Else if equal to ios_base::hex, parses like %X
2015 : * specifier. Else if basefield equal to 0, parses like the %i
2016 : * specifier. Otherwise, parses like %d for signed and %u for unsigned
2017 : * types. The matching type length modifier is also used.
2018 : *
2019 : * Digit grouping is interpreted according to
2020 : * numpunct::grouping() and numpunct::thousands_sep(). If the
2021 : * pattern of digit groups isn't consistent, sets err to
2022 : * ios_base::failbit.
2023 : *
2024 : * If parsing the string yields a valid value for @a v, @a v is set.
2025 : * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered.
2026 : * Sets err to ios_base::eofbit if the stream is emptied.
2027 : *
2028 : * @param __in Start of input stream.
2029 : * @param __end End of input stream.
2030 : * @param __io Source of locale and flags.
2031 : * @param __err Error flags to set.
2032 : * @param __v Value to format and insert.
2033 : * @return Iterator after reading.
2034 : */
2035 : iter_type
2036 : get(iter_type __in, iter_type __end, ios_base& __io,
2037 : ios_base::iostate& __err, long& __v) const
2038 : { return this->do_get(__in, __end, __io, __err, __v); }
2039 :
2040 : iter_type
2041 : get(iter_type __in, iter_type __end, ios_base& __io,
2042 : ios_base::iostate& __err, unsigned short& __v) const
2043 : { return this->do_get(__in, __end, __io, __err, __v); }
2044 :
2045 : iter_type
2046 : get(iter_type __in, iter_type __end, ios_base& __io,
2047 : ios_base::iostate& __err, unsigned int& __v) const
2048 : { return this->do_get(__in, __end, __io, __err, __v); }
2049 :
2050 : iter_type
2051 : get(iter_type __in, iter_type __end, ios_base& __io,
2052 : ios_base::iostate& __err, unsigned long& __v) const
2053 : { return this->do_get(__in, __end, __io, __err, __v); }
2054 :
2055 : #ifdef _GLIBCXX_USE_LONG_LONG
2056 : iter_type
2057 : get(iter_type __in, iter_type __end, ios_base& __io,
2058 : ios_base::iostate& __err, long long& __v) const
2059 : { return this->do_get(__in, __end, __io, __err, __v); }
2060 :
2061 : iter_type
2062 : get(iter_type __in, iter_type __end, ios_base& __io,
2063 : ios_base::iostate& __err, unsigned long long& __v) const
2064 : { return this->do_get(__in, __end, __io, __err, __v); }
2065 : #endif
2066 : ///@}
2067 :
2068 : ///@{
2069 : /**
2070 : * @brief Numeric parsing.
2071 : *
2072 : * Parses the input stream into the integral variable @a v. It does so
2073 : * by calling num_get::do_get().
2074 : *
2075 : * The input characters are parsed like the scanf %g specifier. The
2076 : * matching type length modifier is also used.
2077 : *
2078 : * The decimal point character used is numpunct::decimal_point().
2079 : * Digit grouping is interpreted according to
2080 : * numpunct::grouping() and numpunct::thousands_sep(). If the
2081 : * pattern of digit groups isn't consistent, sets err to
2082 : * ios_base::failbit.
2083 : *
2084 : * If parsing the string yields a valid value for @a v, @a v is set.
2085 : * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered.
2086 : * Sets err to ios_base::eofbit if the stream is emptied.
2087 : *
2088 : * @param __in Start of input stream.
2089 : * @param __end End of input stream.
2090 : * @param __io Source of locale and flags.
2091 : * @param __err Error flags to set.
2092 : * @param __v Value to format and insert.
2093 : * @return Iterator after reading.
2094 : */
2095 : iter_type
2096 : get(iter_type __in, iter_type __end, ios_base& __io,
2097 : ios_base::iostate& __err, float& __v) const
2098 : { return this->do_get(__in, __end, __io, __err, __v); }
2099 :
2100 : iter_type
2101 : get(iter_type __in, iter_type __end, ios_base& __io,
2102 : ios_base::iostate& __err, double& __v) const
2103 : { return this->do_get(__in, __end, __io, __err, __v); }
2104 :
2105 : iter_type
2106 : get(iter_type __in, iter_type __end, ios_base& __io,
2107 : ios_base::iostate& __err, long double& __v) const
2108 : { return this->do_get(__in, __end, __io, __err, __v); }
2109 : ///@}
2110 :
2111 : /**
2112 : * @brief Numeric parsing.
2113 : *
2114 : * Parses the input stream into the pointer variable @a v. It does so
2115 : * by calling num_get::do_get().
2116 : *
2117 : * The input characters are parsed like the scanf %p specifier.
2118 : *
2119 : * Digit grouping is interpreted according to
2120 : * numpunct::grouping() and numpunct::thousands_sep(). If the
2121 : * pattern of digit groups isn't consistent, sets err to
2122 : * ios_base::failbit.
2123 : *
2124 : * Note that the digit grouping effect for pointers is a bit ambiguous
2125 : * in the standard and shouldn't be relied on. See DR 344.
2126 : *
2127 : * If parsing the string yields a valid value for @a v, @a v is set.
2128 : * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered.
2129 : * Sets err to ios_base::eofbit if the stream is emptied.
2130 : *
2131 : * @param __in Start of input stream.
2132 : * @param __end End of input stream.
2133 : * @param __io Source of locale and flags.
2134 : * @param __err Error flags to set.
2135 : * @param __v Value to format and insert.
2136 : * @return Iterator after reading.
2137 : */
2138 : iter_type
2139 : get(iter_type __in, iter_type __end, ios_base& __io,
2140 : ios_base::iostate& __err, void*& __v) const
2141 : { return this->do_get(__in, __end, __io, __err, __v); }
2142 :
2143 : protected:
2144 : /// Destructor.
2145 : virtual ~num_get() { }
2146 :
2147 : _GLIBCXX_DEFAULT_ABI_TAG
2148 : iter_type
2149 : _M_extract_float(iter_type, iter_type, ios_base&, ios_base::iostate&,
2150 : string&) const;
2151 :
2152 : template<typename _ValueT>
2153 : _GLIBCXX_DEFAULT_ABI_TAG
2154 : iter_type
2155 : _M_extract_int(iter_type, iter_type, ios_base&, ios_base::iostate&,
2156 : _ValueT&) const;
2157 :
2158 : template<typename _CharT2>
2159 : typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, int>::__type
2160 : _M_find(const _CharT2*, size_t __len, _CharT2 __c) const
2161 : {
2162 : int __ret = -1;
2163 : if (__len <= 10)
2164 : {
2165 : if (__c >= _CharT2('0') && __c < _CharT2(_CharT2('0') + __len))
2166 : __ret = __c - _CharT2('0');
2167 : }
2168 : else
2169 : {
2170 : if (__c >= _CharT2('0') && __c <= _CharT2('9'))
2171 : __ret = __c - _CharT2('0');
2172 : else if (__c >= _CharT2('a') && __c <= _CharT2('f'))
2173 : __ret = 10 + (__c - _CharT2('a'));
2174 : else if (__c >= _CharT2('A') && __c <= _CharT2('F'))
2175 : __ret = 10 + (__c - _CharT2('A'));
2176 : }
2177 : return __ret;
2178 : }
2179 :
2180 : template<typename _CharT2>
2181 : typename __gnu_cxx::__enable_if<!__is_char<_CharT2>::__value,
2182 : int>::__type
2183 : _M_find(const _CharT2* __zero, size_t __len, _CharT2 __c) const
2184 : {
2185 : int __ret = -1;
2186 : const char_type* __q = char_traits<_CharT2>::find(__zero, __len, __c);
2187 : if (__q)
2188 : {
2189 : __ret = __q - __zero;
2190 : if (__ret > 15)
2191 : __ret -= 6;
2192 : }
2193 : return __ret;
2194 : }
2195 :
2196 : ///@{
2197 : /**
2198 : * @brief Numeric parsing.
2199 : *
2200 : * Parses the input stream into the variable @a v. This function is a
2201 : * hook for derived classes to change the value returned. @see get()
2202 : * for more details.
2203 : *
2204 : * @param __beg Start of input stream.
2205 : * @param __end End of input stream.
2206 : * @param __io Source of locale and flags.
2207 : * @param __err Error flags to set.
2208 : * @param __v Value to format and insert.
2209 : * @return Iterator after reading.
2210 : */
2211 : virtual iter_type
2212 : do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, bool&) const;
2213 :
2214 : virtual iter_type
2215 : do_get(iter_type __beg, iter_type __end, ios_base& __io,
2216 : ios_base::iostate& __err, long& __v) const
2217 : { return _M_extract_int(__beg, __end, __io, __err, __v); }
2218 :
2219 : virtual iter_type
2220 : do_get(iter_type __beg, iter_type __end, ios_base& __io,
2221 : ios_base::iostate& __err, unsigned short& __v) const
2222 : { return _M_extract_int(__beg, __end, __io, __err, __v); }
2223 :
2224 : virtual iter_type
2225 : do_get(iter_type __beg, iter_type __end, ios_base& __io,
2226 : ios_base::iostate& __err, unsigned int& __v) const
2227 : { return _M_extract_int(__beg, __end, __io, __err, __v); }
2228 :
2229 : virtual iter_type
2230 : do_get(iter_type __beg, iter_type __end, ios_base& __io,
2231 : ios_base::iostate& __err, unsigned long& __v) const
2232 : { return _M_extract_int(__beg, __end, __io, __err, __v); }
2233 :
2234 : #ifdef _GLIBCXX_USE_LONG_LONG
2235 : virtual iter_type
2236 : do_get(iter_type __beg, iter_type __end, ios_base& __io,
2237 : ios_base::iostate& __err, long long& __v) const
2238 : { return _M_extract_int(__beg, __end, __io, __err, __v); }
2239 :
2240 : virtual iter_type
2241 : do_get(iter_type __beg, iter_type __end, ios_base& __io,
2242 : ios_base::iostate& __err, unsigned long long& __v) const
2243 : { return _M_extract_int(__beg, __end, __io, __err, __v); }
2244 : #endif
2245 :
2246 : virtual iter_type
2247 : do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, float&) const;
2248 :
2249 : virtual iter_type
2250 : do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
2251 : double&) const;
2252 :
2253 : // XXX GLIBCXX_ABI Deprecated
2254 : #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
2255 : virtual iter_type
2256 : __do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
2257 : double&) const;
2258 : #else
2259 : virtual iter_type
2260 : do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
2261 : long double&) const;
2262 : #endif
2263 :
2264 : virtual iter_type
2265 : do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, void*&) const;
2266 :
2267 : // XXX GLIBCXX_ABI Deprecated
2268 : #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
2269 : virtual iter_type
2270 : do_get(iter_type, iter_type, ios_base&, ios_base::iostate&,
2271 : long double&) const;
2272 : #endif
2273 : ///@}
2274 : };
2275 :
2276 : template<typename _CharT, typename _InIter>
2277 : locale::id num_get<_CharT, _InIter>::id;
2278 :
2279 :
2280 : /**
2281 : * @brief Primary class template num_put.
2282 : * @ingroup locales
2283 : *
2284 : * This facet encapsulates the code to convert a number to a string. It is
2285 : * used by the ostream numeric insertion operators.
2286 : *
2287 : * The num_put template uses protected virtual functions to provide the
2288 : * actual results. The public accessors forward the call to the virtual
2289 : * functions. These virtual functions are hooks for developers to
2290 : * implement the behavior they require from the num_put facet.
2291 : */
2292 : template<typename _CharT, typename _OutIter>
2293 : class num_put : public locale::facet
2294 : {
2295 : public:
2296 : // Types:
2297 : ///@{
2298 : /// Public typedefs
2299 : typedef _CharT char_type;
2300 : typedef _OutIter iter_type;
2301 : ///@}
2302 :
2303 : /// Numpunct facet id.
2304 : static locale::id id;
2305 :
2306 : /**
2307 : * @brief Constructor performs initialization.
2308 : *
2309 : * This is the constructor provided by the standard.
2310 : *
2311 : * @param __refs Passed to the base facet class.
2312 : */
2313 : explicit
2314 : num_put(size_t __refs = 0) : facet(__refs) { }
2315 :
2316 : /**
2317 : * @brief Numeric formatting.
2318 : *
2319 : * Formats the boolean @a v and inserts it into a stream. It does so
2320 : * by calling num_put::do_put().
2321 : *
2322 : * If ios_base::boolalpha is set, writes ctype<CharT>::truename() or
2323 : * ctype<CharT>::falsename(). Otherwise formats @a v as an int.
2324 : *
2325 : * @param __s Stream to write to.
2326 : * @param __io Source of locale and flags.
2327 : * @param __fill Char_type to use for filling.
2328 : * @param __v Value to format and insert.
2329 : * @return Iterator after writing.
2330 : */
2331 : iter_type
2332 : put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const
2333 : { return this->do_put(__s, __io, __fill, __v); }
2334 :
2335 : ///@{
2336 : /**
2337 : * @brief Numeric formatting.
2338 : *
2339 : * Formats the integral value @a v and inserts it into a
2340 : * stream. It does so by calling num_put::do_put().
2341 : *
2342 : * Formatting is affected by the flag settings in @a io.
2343 : *
2344 : * The basic format is affected by the value of io.flags() &
2345 : * ios_base::basefield. If equal to ios_base::oct, formats like the
2346 : * printf %o specifier. Else if equal to ios_base::hex, formats like
2347 : * %x or %X with ios_base::uppercase unset or set respectively.
2348 : * Otherwise, formats like %d, %ld, %lld for signed and %u, %lu, %llu
2349 : * for unsigned values. Note that if both oct and hex are set, neither
2350 : * will take effect.
2351 : *
2352 : * If ios_base::showpos is set, '+' is output before positive values.
2353 : * If ios_base::showbase is set, '0' precedes octal values (except 0)
2354 : * and '0[xX]' precedes hex values.
2355 : *
2356 : * The decimal point character used is numpunct::decimal_point().
2357 : * Thousands separators are inserted according to
2358 : * numpunct::grouping() and numpunct::thousands_sep().
2359 : *
2360 : * If io.width() is non-zero, enough @a fill characters are inserted to
2361 : * make the result at least that wide. If
2362 : * (io.flags() & ios_base::adjustfield) == ios_base::left, result is
2363 : * padded at the end. If ios_base::internal, then padding occurs
2364 : * immediately after either a '+' or '-' or after '0x' or '0X'.
2365 : * Otherwise, padding occurs at the beginning.
2366 : *
2367 : * @param __s Stream to write to.
2368 : * @param __io Source of locale and flags.
2369 : * @param __fill Char_type to use for filling.
2370 : * @param __v Value to format and insert.
2371 : * @return Iterator after writing.
2372 : */
2373 : iter_type
2374 : put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
2375 : { return this->do_put(__s, __io, __fill, __v); }
2376 :
2377 : iter_type
2378 : put(iter_type __s, ios_base& __io, char_type __fill,
2379 : unsigned long __v) const
2380 : { return this->do_put(__s, __io, __fill, __v); }
2381 :
2382 : #ifdef _GLIBCXX_USE_LONG_LONG
2383 : iter_type
2384 : put(iter_type __s, ios_base& __io, char_type __fill, long long __v) const
2385 : { return this->do_put(__s, __io, __fill, __v); }
2386 :
2387 : iter_type
2388 : put(iter_type __s, ios_base& __io, char_type __fill,
2389 : unsigned long long __v) const
2390 : { return this->do_put(__s, __io, __fill, __v); }
2391 : #endif
2392 : ///@}
2393 :
2394 : ///@{
2395 : /**
2396 : * @brief Numeric formatting.
2397 : *
2398 : * Formats the floating point value @a v and inserts it into a stream.
2399 : * It does so by calling num_put::do_put().
2400 : *
2401 : * Formatting is affected by the flag settings in @a io.
2402 : *
2403 : * The basic format is affected by the value of io.flags() &
2404 : * ios_base::floatfield. If equal to ios_base::fixed, formats like the
2405 : * printf %f specifier. Else if equal to ios_base::scientific, formats
2406 : * like %e or %E with ios_base::uppercase unset or set respectively.
2407 : * Otherwise, formats like %g or %G depending on uppercase. Note that
2408 : * if both fixed and scientific are set, the effect will also be like
2409 : * %g or %G.
2410 : *
2411 : * The output precision is given by io.precision(). This precision is
2412 : * capped at numeric_limits::digits10 + 2 (different for double and
2413 : * long double). The default precision is 6.
2414 : *
2415 : * If ios_base::showpos is set, '+' is output before positive values.
2416 : * If ios_base::showpoint is set, a decimal point will always be
2417 : * output.
2418 : *
2419 : * The decimal point character used is numpunct::decimal_point().
2420 : * Thousands separators are inserted according to
2421 : * numpunct::grouping() and numpunct::thousands_sep().
2422 : *
2423 : * If io.width() is non-zero, enough @a fill characters are inserted to
2424 : * make the result at least that wide. If
2425 : * (io.flags() & ios_base::adjustfield) == ios_base::left, result is
2426 : * padded at the end. If ios_base::internal, then padding occurs
2427 : * immediately after either a '+' or '-' or after '0x' or '0X'.
2428 : * Otherwise, padding occurs at the beginning.
2429 : *
2430 : * @param __s Stream to write to.
2431 : * @param __io Source of locale and flags.
2432 : * @param __fill Char_type to use for filling.
2433 : * @param __v Value to format and insert.
2434 : * @return Iterator after writing.
2435 : */
2436 : iter_type
2437 : put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
2438 : { return this->do_put(__s, __io, __fill, __v); }
2439 :
2440 : iter_type
2441 : put(iter_type __s, ios_base& __io, char_type __fill,
2442 : long double __v) const
2443 : { return this->do_put(__s, __io, __fill, __v); }
2444 : ///@}
2445 :
2446 : /**
2447 : * @brief Numeric formatting.
2448 : *
2449 : * Formats the pointer value @a v and inserts it into a stream. It
2450 : * does so by calling num_put::do_put().
2451 : *
2452 : * This function formats @a v as an unsigned long with ios_base::hex
2453 : * and ios_base::showbase set.
2454 : *
2455 : * @param __s Stream to write to.
2456 : * @param __io Source of locale and flags.
2457 : * @param __fill Char_type to use for filling.
2458 : * @param __v Value to format and insert.
2459 : * @return Iterator after writing.
2460 : */
2461 : iter_type
2462 : put(iter_type __s, ios_base& __io, char_type __fill,
2463 : const void* __v) const
2464 : { return this->do_put(__s, __io, __fill, __v); }
2465 :
2466 : protected:
2467 : template<typename _ValueT>
2468 : iter_type
2469 : _M_insert_float(iter_type, ios_base& __io, char_type __fill,
2470 : char __mod, _ValueT __v) const;
2471 :
2472 : void
2473 : _M_group_float(const char* __grouping, size_t __grouping_size,
2474 : char_type __sep, const char_type* __p, char_type* __new,
2475 : char_type* __cs, int& __len) const;
2476 :
2477 : template<typename _ValueT>
2478 : iter_type
2479 : _M_insert_int(iter_type, ios_base& __io, char_type __fill,
2480 : _ValueT __v) const;
2481 :
2482 : void
2483 : _M_group_int(const char* __grouping, size_t __grouping_size,
2484 : char_type __sep, ios_base& __io, char_type* __new,
2485 : char_type* __cs, int& __len) const;
2486 :
2487 : void
2488 : _M_pad(char_type __fill, streamsize __w, ios_base& __io,
2489 : char_type* __new, const char_type* __cs, int& __len) const;
2490 :
2491 : /// Destructor.
2492 : virtual
2493 : ~num_put() { }
2494 :
2495 : ///@{
2496 : /**
2497 : * @brief Numeric formatting.
2498 : *
2499 : * These functions do the work of formatting numeric values and
2500 : * inserting them into a stream. This function is a hook for derived
2501 : * classes to change the value returned.
2502 : *
2503 : * @param __s Stream to write to.
2504 : * @param __io Source of locale and flags.
2505 : * @param __fill Char_type to use for filling.
2506 : * @param __v Value to format and insert.
2507 : * @return Iterator after writing.
2508 : */
2509 : virtual iter_type
2510 : do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const;
2511 :
2512 : virtual iter_type
2513 : do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
2514 : { return _M_insert_int(__s, __io, __fill, __v); }
2515 :
2516 : virtual iter_type
2517 : do_put(iter_type __s, ios_base& __io, char_type __fill,
2518 : unsigned long __v) const
2519 : { return _M_insert_int(__s, __io, __fill, __v); }
2520 :
2521 : #ifdef _GLIBCXX_USE_LONG_LONG
2522 : virtual iter_type
2523 : do_put(iter_type __s, ios_base& __io, char_type __fill,
2524 : long long __v) const
2525 : { return _M_insert_int(__s, __io, __fill, __v); }
2526 :
2527 : virtual iter_type
2528 : do_put(iter_type __s, ios_base& __io, char_type __fill,
2529 : unsigned long long __v) const
2530 : { return _M_insert_int(__s, __io, __fill, __v); }
2531 : #endif
2532 :
2533 : virtual iter_type
2534 : do_put(iter_type, ios_base&, char_type, double) const;
2535 :
2536 : // XXX GLIBCXX_ABI Deprecated
2537 : #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
2538 : virtual iter_type
2539 : __do_put(iter_type, ios_base&, char_type, double) const;
2540 : #else
2541 : virtual iter_type
2542 : do_put(iter_type, ios_base&, char_type, long double) const;
2543 : #endif
2544 :
2545 : virtual iter_type
2546 : do_put(iter_type, ios_base&, char_type, const void*) const;
2547 :
2548 : // XXX GLIBCXX_ABI Deprecated
2549 : #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
2550 : virtual iter_type
2551 : do_put(iter_type, ios_base&, char_type, long double) const;
2552 : #endif
2553 : ///@}
2554 : };
2555 :
2556 : template <typename _CharT, typename _OutIter>
2557 : locale::id num_put<_CharT, _OutIter>::id;
2558 :
2559 : _GLIBCXX_END_NAMESPACE_LDBL
2560 :
2561 : // Subclause convenience interfaces, inlines.
2562 : // NB: These are inline because, when used in a loop, some compilers
2563 : // can hoist the body out of the loop; then it's just as fast as the
2564 : // C is*() function.
2565 :
2566 : /// Convenience interface to ctype.is(ctype_base::space, __c).
2567 : template<typename _CharT>
2568 : inline bool
2569 : isspace(_CharT __c, const locale& __loc)
2570 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::space, __c); }
2571 :
2572 : /// Convenience interface to ctype.is(ctype_base::print, __c).
2573 : template<typename _CharT>
2574 : inline bool
2575 : isprint(_CharT __c, const locale& __loc)
2576 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::print, __c); }
2577 :
2578 : /// Convenience interface to ctype.is(ctype_base::cntrl, __c).
2579 : template<typename _CharT>
2580 : inline bool
2581 : iscntrl(_CharT __c, const locale& __loc)
2582 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::cntrl, __c); }
2583 :
2584 : /// Convenience interface to ctype.is(ctype_base::upper, __c).
2585 : template<typename _CharT>
2586 : inline bool
2587 : isupper(_CharT __c, const locale& __loc)
2588 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::upper, __c); }
2589 :
2590 : /// Convenience interface to ctype.is(ctype_base::lower, __c).
2591 : template<typename _CharT>
2592 : inline bool
2593 : islower(_CharT __c, const locale& __loc)
2594 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::lower, __c); }
2595 :
2596 : /// Convenience interface to ctype.is(ctype_base::alpha, __c).
2597 : template<typename _CharT>
2598 : inline bool
2599 : isalpha(_CharT __c, const locale& __loc)
2600 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alpha, __c); }
2601 :
2602 : /// Convenience interface to ctype.is(ctype_base::digit, __c).
2603 : template<typename _CharT>
2604 : inline bool
2605 : isdigit(_CharT __c, const locale& __loc)
2606 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::digit, __c); }
2607 :
2608 : /// Convenience interface to ctype.is(ctype_base::punct, __c).
2609 : template<typename _CharT>
2610 : inline bool
2611 : ispunct(_CharT __c, const locale& __loc)
2612 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::punct, __c); }
2613 :
2614 : /// Convenience interface to ctype.is(ctype_base::xdigit, __c).
2615 : template<typename _CharT>
2616 : inline bool
2617 : isxdigit(_CharT __c, const locale& __loc)
2618 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::xdigit, __c); }
2619 :
2620 : /// Convenience interface to ctype.is(ctype_base::alnum, __c).
2621 : template<typename _CharT>
2622 : inline bool
2623 : isalnum(_CharT __c, const locale& __loc)
2624 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alnum, __c); }
2625 :
2626 : /// Convenience interface to ctype.is(ctype_base::graph, __c).
2627 : template<typename _CharT>
2628 : inline bool
2629 : isgraph(_CharT __c, const locale& __loc)
2630 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::graph, __c); }
2631 :
2632 : #if __cplusplus >= 201103L
2633 : /// Convenience interface to ctype.is(ctype_base::blank, __c).
2634 : template<typename _CharT>
2635 : inline bool
2636 : isblank(_CharT __c, const locale& __loc)
2637 : { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::blank, __c); }
2638 : #endif
2639 :
2640 : /// Convenience interface to ctype.toupper(__c).
2641 : template<typename _CharT>
2642 : inline _CharT
2643 0 : toupper(_CharT __c, const locale& __loc)
2644 0 : { return use_facet<ctype<_CharT> >(__loc).toupper(__c); }
2645 :
2646 : /// Convenience interface to ctype.tolower(__c).
2647 : template<typename _CharT>
2648 : inline _CharT
2649 14240 : tolower(_CharT __c, const locale& __loc)
2650 14240 : { return use_facet<ctype<_CharT> >(__loc).tolower(__c); }
2651 :
2652 : _GLIBCXX_END_NAMESPACE_VERSION
2653 : } // namespace std
2654 :
2655 : # include <bits/locale_facets.tcc>
2656 :
2657 : #endif
|
