1 /* Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 * ISO C99 Standard: 7.24
21 * Extended multibyte and wide character utilities <wchar.h>
26 #ifndef __need_mbstate_t
28 # include <features.h>
31 #ifndef __UCLIBC_HAS_WCHAR__
32 #error Attempted to include wchar.h when uClibc built without wide char support.
36 /* Get FILE definition. */
37 # define __need___FILE
42 /* Get va_list definition. */
43 # define __need___va_list
46 /* Get size_t, wchar_t, wint_t and NULL from <stddef.h>. */
47 # define __need_size_t
48 # define __need_wchar_t
54 #include <bits/wchar.h>
56 /* We try to get wint_t from <stddef.h>, but not all GCC versions define it
57 there. So define it ourselves if it remains undefined. */
59 /* Integral type unchanged by default argument promotions that can
60 hold any value corresponding to members of the extended character
61 set, as well as at least one value that does not correspond to any
62 member of the extended character set. */
64 typedef unsigned int wint_t;
66 /* Work around problems with the <stddef.h> file which doesn't put
67 wint_t in the std namespace. */
68 # if defined __cplusplus && defined _GLIBCPP_USE_NAMESPACES \
69 && defined __WINT_TYPE__
71 typedef __WINT_TYPE__ wint_t;
77 #ifndef __mbstate_t_defined
78 # define __mbstate_t_defined 1
79 /* Conversion state information. */
94 } __value; /* Value so far. */
98 #undef __need_mbstate_t
101 /* The rest of the file is only used if used if __need_mbstate_t is not
105 __BEGIN_NAMESPACE_C99
107 typedef __mbstate_t mbstate_t;
110 __USING_NAMESPACE_C99(mbstate_t)
114 /* These constants might also be defined in <inttypes.h>. */
115 # define WCHAR_MIN __WCHAR_MIN
116 # define WCHAR_MAX __WCHAR_MAX
120 # define WEOF (0xffffffffu)
123 /* For XPG4 compliance we have to define the stuff from <wctype.h> here
125 #if defined __USE_XOPEN && !defined __USE_UNIX98
132 __BEGIN_NAMESPACE_STD
133 /* This incomplete type is defined in <time.h> but needed here because
136 /* XXX We have to clean this up at some point. Since tm is in the std
137 namespace but wcsftime is in __c99 the type wouldn't be found
138 without inserting it in the global namespace. */
139 __USING_NAMESPACE_STD(tm)
143 __BEGIN_NAMESPACE_C99
144 /* Copy SRC to DEST. */
145 extern wchar_t *wcscpy (wchar_t *__restrict __dest,
146 __const wchar_t *__restrict __src) __THROW;
147 /* Copy no more than N wide-characters of SRC to DEST. */
148 extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
149 __const wchar_t *__restrict __src, size_t __n)
152 /* Append SRC onto DEST. */
153 extern wchar_t *wcscat (wchar_t *__restrict __dest,
154 __const wchar_t *__restrict __src) __THROW;
155 /* Append no more than N wide-characters of SRC onto DEST. */
156 extern wchar_t *wcsncat (wchar_t *__restrict __dest,
157 __const wchar_t *__restrict __src, size_t __n)
160 /* Compare S1 and S2. */
161 extern int wcscmp (__const wchar_t *__s1, __const wchar_t *__s2)
162 __THROW __attribute_pure__;
163 /* Compare N wide-characters of S1 and S2. */
164 extern int wcsncmp (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n)
165 __THROW __attribute_pure__;
169 /* Compare S1 and S2, ignoring case. */
170 extern int wcscasecmp (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
172 /* Compare no more than N chars of S1 and S2, ignoring case. */
173 extern int wcsncasecmp (__const wchar_t *__s1, __const wchar_t *__s2,
176 #ifdef __UCLIBC_HAS_XLOCALE__
177 /* Similar to the two functions above but take the information from
178 the provided locale and not the global locale. */
179 # include <xlocale.h>
181 extern int wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
182 __locale_t __loc) __THROW;
183 extern int __wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
184 __locale_t __loc) __THROW;
186 extern int wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
187 size_t __n, __locale_t __loc) __THROW;
188 extern int __wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
189 size_t __n, __locale_t __loc) __THROW;
190 #endif /* __UCLIBC_HAS_XLOCALE__ */
193 __BEGIN_NAMESPACE_C99
194 /* Compare S1 and S2, both interpreted as appropriate to the
195 LC_COLLATE category of the current locale. */
196 extern int wcscoll (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
197 /* Transform S2 into array pointed to by S1 such that if wcscmp is
198 applied to two transformed strings the result is the as applying
199 `wcscoll' to the original strings. */
200 extern size_t wcsxfrm (wchar_t *__restrict __s1,
201 __const wchar_t *__restrict __s2, size_t __n) __THROW;
205 #ifdef __UCLIBC_HAS_XLOCALE__
206 /* Similar to the two functions above but take the information from
207 the provided locale and not the global locale. */
209 /* Compare S1 and S2, both interpreted as appropriate to the
210 LC_COLLATE category of the given locale. */
211 extern int wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2,
212 __locale_t __loc) __THROW;
213 extern int __wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2,
214 __locale_t __loc) __THROW;
216 /* Transform S2 into array pointed to by S1 such that if wcscmp is
217 applied to two transformed strings the result is the as applying
218 `wcscoll' to the original strings. */
219 extern size_t wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2,
220 size_t __n, __locale_t __loc) __THROW;
221 extern size_t __wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2,
222 size_t __n, __locale_t __loc) __THROW;
224 #endif /* __UCLIBC_HAS_XLOCALE__ */
226 /* Duplicate S, returning an identical malloc'd string. */
227 extern wchar_t *wcsdup (__const wchar_t *__s) __THROW __attribute_malloc__;
230 __BEGIN_NAMESPACE_C99
231 /* Find the first occurrence of WC in WCS. */
232 extern wchar_t *wcschr (__const wchar_t *__wcs, wchar_t __wc)
233 __THROW __attribute_pure__;
234 /* Find the last occurrence of WC in WCS. */
235 extern wchar_t *wcsrchr (__const wchar_t *__wcs, wchar_t __wc)
236 __THROW __attribute_pure__;
240 /* This function is similar to `wcschr'. But it returns a pointer to
241 the closing NUL wide character in case C is not found in S. */
242 extern wchar_t *wcschrnul (__const wchar_t *__s, wchar_t __wc)
243 __THROW __attribute_pure__;
246 __BEGIN_NAMESPACE_C99
247 /* Return the length of the initial segmet of WCS which
248 consists entirely of wide characters not in REJECT. */
249 extern size_t wcscspn (__const wchar_t *__wcs, __const wchar_t *__reject)
250 __THROW __attribute_pure__;
251 /* Return the length of the initial segmet of WCS which
252 consists entirely of wide characters in ACCEPT. */
253 extern size_t wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept)
254 __THROW __attribute_pure__;
255 /* Find the first occurrence in WCS of any character in ACCEPT. */
256 extern wchar_t *wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept)
257 __THROW __attribute_pure__;
258 /* Find the first occurrence of NEEDLE in HAYSTACK. */
259 extern wchar_t *wcsstr (__const wchar_t *__haystack, __const wchar_t *__needle)
260 __THROW __attribute_pure__;
262 /* Divide WCS into tokens separated by characters in DELIM. */
263 extern wchar_t *wcstok (wchar_t *__restrict __s,
264 __const wchar_t *__restrict __delim,
265 wchar_t **__restrict __ptr) __THROW;
267 /* Return the number of wide characters in S. */
268 extern size_t wcslen (__const wchar_t *__s) __THROW __attribute_pure__;
272 /* Another name for `wcsstr' from XPG4. */
273 extern wchar_t *wcswcs (__const wchar_t *__haystack, __const wchar_t *__needle)
274 __THROW __attribute_pure__;
278 /* Return the number of wide characters in S, but at most MAXLEN. */
279 extern size_t wcsnlen (__const wchar_t *__s, size_t __maxlen)
280 __THROW __attribute_pure__;
284 __BEGIN_NAMESPACE_C99
285 /* Search N wide characters of S for C. */
286 extern wchar_t *wmemchr (__const wchar_t *__s, wchar_t __c, size_t __n)
287 __THROW __attribute_pure__;
289 /* Compare N wide characters of S1 and S2. */
290 extern int wmemcmp (__const wchar_t *__restrict __s1,
291 __const wchar_t *__restrict __s2, size_t __n)
292 __THROW __attribute_pure__;
294 /* Copy N wide characters of SRC to DEST. */
295 extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
296 __const wchar_t *__restrict __s2, size_t __n) __THROW;
298 /* Copy N wide characters of SRC to DEST, guaranteeing
299 correct behavior for overlapping strings. */
300 extern wchar_t *wmemmove (wchar_t *__s1, __const wchar_t *__s2, size_t __n)
303 /* Set N wide characters of S to C. */
304 extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
308 /* Copy N wide characters of SRC to DEST and return pointer to following
310 extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
311 __const wchar_t *__restrict __s2, size_t __n)
316 __BEGIN_NAMESPACE_C99
317 /* Determine whether C constitutes a valid (one-byte) multibyte
319 extern wint_t btowc (int __c) __THROW;
321 /* Determine whether C corresponds to a member of the extended
322 character set whose multibyte representation is a single byte. */
323 extern int wctob (wint_t __c) __THROW;
325 /* Determine whether PS points to an object representing the initial
327 extern int mbsinit (__const mbstate_t *__ps) __THROW __attribute_pure__;
329 /* Write wide character representation of multibyte character pointed
331 extern size_t mbrtowc (wchar_t *__restrict __pwc,
332 __const char *__restrict __s, size_t __n,
333 mbstate_t *__p) __THROW;
335 /* Write multibyte representation of wide character WC to S. */
336 extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
337 mbstate_t *__restrict __ps) __THROW;
339 /* Return number of bytes in multibyte character pointed to by S. */
340 extern size_t __mbrlen (__const char *__restrict __s, size_t __n,
341 mbstate_t *__restrict __ps) __THROW;
342 extern size_t mbrlen (__const char *__restrict __s, size_t __n,
343 mbstate_t *__restrict __ps) __THROW;
346 #ifdef __USE_EXTERN_INLINES
347 /* Define inline function as optimization. */
348 extern __inline size_t mbrlen (__const char *__restrict __s, size_t __n,
349 mbstate_t *__restrict __ps) __THROW
350 { return (__ps != NULL
351 ? mbrtowc (NULL, __s, __n, __ps) : __mbrlen (__s, __n, NULL)); }
354 __BEGIN_NAMESPACE_C99
355 /* Write wide character representation of multibyte character string
357 extern size_t mbsrtowcs (wchar_t *__restrict __dst,
358 __const char **__restrict __src, size_t __len,
359 mbstate_t *__restrict __ps) __THROW;
361 /* Write multibyte character representation of wide character string
363 extern size_t wcsrtombs (char *__restrict __dst,
364 __const wchar_t **__restrict __src, size_t __len,
365 mbstate_t *__restrict __ps) __THROW;
370 /* Write wide character representation of at most NMC bytes of the
371 multibyte character string SRC to DST. */
372 extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
373 __const char **__restrict __src, size_t __nmc,
374 size_t __len, mbstate_t *__restrict __ps) __THROW;
376 /* Write multibyte character representation of at most NWC characters
377 from the wide character string SRC to DST. */
378 extern size_t wcsnrtombs (char *__restrict __dst,
379 __const wchar_t **__restrict __src,
380 size_t __nwc, size_t __len,
381 mbstate_t *__restrict __ps) __THROW;
385 /* The following functions are extensions found in X/Open CAE. */
387 /* Determine number of column positions required for C. */
388 extern int wcwidth (wchar_t __c) __THROW;
390 /* Determine number of column positions required for first N wide
391 characters (or fewer if S ends before this) in S. */
392 extern int wcswidth (__const wchar_t *__s, size_t __n) __THROW;
393 #endif /* Use X/Open. */
396 __BEGIN_NAMESPACE_C99
397 #ifdef __UCLIBC_HAS_FLOATS__
398 /* Convert initial portion of the wide string NPTR to `double'
400 extern double wcstod (__const wchar_t *__restrict __nptr,
401 wchar_t **__restrict __endptr) __THROW;
404 /* Likewise for `float' and `long double' sizes of floating-point numbers. */
405 extern float wcstof (__const wchar_t *__restrict __nptr,
406 wchar_t **__restrict __endptr) __THROW;
407 extern long double wcstold (__const wchar_t *__restrict __nptr,
408 wchar_t **__restrict __endptr) __THROW;
410 #endif /* __UCLIBC_HAS_FLOATS__ */
413 /* Convert initial portion of wide string NPTR to `long int'
415 extern long int wcstol (__const wchar_t *__restrict __nptr,
416 wchar_t **__restrict __endptr, int __base) __THROW;
418 /* Convert initial portion of wide string NPTR to `unsigned long int'
420 extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr,
421 wchar_t **__restrict __endptr, int __base)
424 #if defined __USE_ISOC99 || (defined __GNUC__ && defined __USE_GNU)
425 /* Convert initial portion of wide string NPTR to `long int'
428 extern long long int wcstoll (__const wchar_t *__restrict __nptr,
429 wchar_t **__restrict __endptr, int __base)
432 /* Convert initial portion of wide string NPTR to `unsigned long long int'
435 extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr,
436 wchar_t **__restrict __endptr,
438 #endif /* ISO C99 or GCC and GNU. */
441 #if defined __GNUC__ && defined __USE_GNU
442 /* Convert initial portion of wide string NPTR to `long int'
445 extern long long int wcstoq (__const wchar_t *__restrict __nptr,
446 wchar_t **__restrict __endptr, int __base)
449 /* Convert initial portion of wide string NPTR to `unsigned long long int'
452 extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr,
453 wchar_t **__restrict __endptr,
455 #endif /* GCC and use GNU. */
458 #ifdef __UCLIBC_HAS_XLOCALE__
459 /* The concept of one static locale per category is not very well
460 thought out. Many applications will need to process its data using
461 information from several different locales. Another application is
462 the implementation of the internationalization handling in the
463 upcoming ISO C++ standard library. To support this another set of
464 the functions using locale data exist which have an additional
467 Attention: all these functions are *not* standardized in any form.
468 This is a proof-of-concept implementation. */
470 /* Structure for reentrant locale using functions. This is an
471 (almost) opaque type for the user level programs. */
472 # include <xlocale.h>
474 /* Special versions of the functions above which take the locale to
475 use as an additional parameter. */
476 extern long int wcstol_l (__const wchar_t *__restrict __nptr,
477 wchar_t **__restrict __endptr, int __base,
478 __locale_t __loc) __THROW;
479 extern long int __wcstol_l (__const wchar_t *__restrict __nptr,
480 wchar_t **__restrict __endptr, int __base,
481 __locale_t __loc) __THROW;
483 extern unsigned long int wcstoul_l (__const wchar_t *__restrict __nptr,
484 wchar_t **__restrict __endptr,
485 int __base, __locale_t __loc) __THROW;
486 extern unsigned long int __wcstoul_l (__const wchar_t *__restrict __nptr,
487 wchar_t **__restrict __endptr,
488 int __base, __locale_t __loc) __THROW;
491 extern long long int wcstoll_l (__const wchar_t *__restrict __nptr,
492 wchar_t **__restrict __endptr,
493 int __base, __locale_t __loc) __THROW;
495 extern long long int __wcstoll_l (__const wchar_t *__restrict __nptr,
496 wchar_t **__restrict __endptr,
497 int __base, __locale_t __loc) __THROW;
500 extern unsigned long long int wcstoull_l (__const wchar_t *__restrict __nptr,
501 wchar_t **__restrict __endptr,
502 int __base, __locale_t __loc)
505 extern unsigned long long int __wcstoull_l (__const wchar_t *__restrict __nptr,
506 wchar_t **__restrict __endptr,
507 int __base, __locale_t __loc)
510 #ifdef __UCLIBC_HAS_FLOATS__
511 extern double wcstod_l (__const wchar_t *__restrict __nptr,
512 wchar_t **__restrict __endptr, __locale_t __loc)
514 extern double __wcstod_l (__const wchar_t *__restrict __nptr,
515 wchar_t **__restrict __endptr, __locale_t __loc)
518 extern float wcstof_l (__const wchar_t *__restrict __nptr,
519 wchar_t **__restrict __endptr, __locale_t __loc)
521 extern float __wcstof_l (__const wchar_t *__restrict __nptr,
522 wchar_t **__restrict __endptr, __locale_t __loc)
525 extern long double wcstold_l (__const wchar_t *__restrict __nptr,
526 wchar_t **__restrict __endptr,
527 __locale_t __loc) __THROW;
528 extern long double __wcstold_l (__const wchar_t *__restrict __nptr,
529 wchar_t **__restrict __endptr,
530 __locale_t __loc) __THROW;
531 #endif /* __UCLIBC_HAS_FLOATS__ */
532 #endif /* __UCLIBC_HAS_XLOCALE__ */
537 #ifdef __UCLIBC_HAS_FLOATS__
538 /* The internal entry points for `wcstoX' take an extra flag argument
539 saying whether or not to parse locale-dependent number grouping. */
540 extern double __wcstod_internal (__const wchar_t *__restrict __nptr,
541 wchar_t **__restrict __endptr, int __group)
543 extern float __wcstof_internal (__const wchar_t *__restrict __nptr,
544 wchar_t **__restrict __endptr, int __group)
546 extern long double __wcstold_internal (__const wchar_t *__restrict __nptr,
547 wchar_t **__restrict __endptr,
548 int __group) __THROW;
549 #endif /* __UCLIBC_HAS_FLOATS__ */
551 #ifndef __wcstol_internal_defined
552 extern long int __wcstol_internal (__const wchar_t *__restrict __nptr,
553 wchar_t **__restrict __endptr,
554 int __base, int __group) __THROW;
555 # define __wcstol_internal_defined 1
557 #ifndef __wcstoul_internal_defined
558 extern unsigned long int __wcstoul_internal (__const wchar_t *__restrict __npt,
559 wchar_t **__restrict __endptr,
560 int __base, int __group) __THROW;
561 # define __wcstoul_internal_defined 1
563 #ifndef __wcstoll_internal_defined
565 extern long long int __wcstoll_internal (__const wchar_t *__restrict __nptr,
566 wchar_t **__restrict __endptr,
567 int __base, int __group) __THROW;
568 # define __wcstoll_internal_defined 1
570 #ifndef __wcstoull_internal_defined
572 extern unsigned long long int __wcstoull_internal (__const wchar_t *
577 int __group) __THROW;
578 # define __wcstoull_internal_defined 1
582 #if defined __OPTIMIZE__ && __GNUC__ >= 2
583 /* Define inline functions which call the internal entry points. */
584 /* __BEGIN_NAMESPACE_C99 */
586 /* extern __inline double wcstod (__const wchar_t *__restrict __nptr, */
587 /* wchar_t **__restrict __endptr) __THROW */
588 /* { return __wcstod_internal (__nptr, __endptr, 0); } */
589 /* extern __inline long int wcstol (__const wchar_t *__restrict __nptr, */
590 /* wchar_t **__restrict __endptr, */
591 /* int __base) __THROW */
592 /* { return __wcstol_internal (__nptr, __endptr, __base, 0); } */
593 /* extern __inline unsigned long int wcstoul (__const wchar_t *__restrict __nptr, */
594 /* wchar_t **__restrict __endptr, */
595 /* int __base) __THROW */
596 /* { return __wcstoul_internal (__nptr, __endptr, __base, 0); } */
597 /* __END_NAMESPACE_C99 */
600 /* extern __inline float wcstof (__const wchar_t *__restrict __nptr, */
601 /* wchar_t **__restrict __endptr) __THROW */
602 /* { return __wcstof_internal (__nptr, __endptr, 0); } */
603 /* extern __inline long double wcstold (__const wchar_t *__restrict __nptr, */
604 /* wchar_t **__restrict __endptr) __THROW */
605 /* { return __wcstold_internal (__nptr, __endptr, 0); } */
609 /* extern __inline long long int wcstoq (__const wchar_t *__restrict __nptr, */
610 /* wchar_t **__restrict __endptr, */
611 /* int __base) __THROW */
612 /* { return __wcstoll_internal (__nptr, __endptr, __base, 0); } */
614 /* extern __inline unsigned long long int wcstouq (__const wchar_t * */
615 /* __restrict __nptr, */
616 /* wchar_t **__restrict __endptr, */
617 /* int __base) __THROW */
618 /* { return __wcstoull_internal (__nptr, __endptr, __base, 0); } */
619 # endif /* Use GNU. */
620 #endif /* Optimizing GCC >=2. */
625 /* Copy SRC to DEST, returning the address of the terminating L'\0' in
627 extern wchar_t *wcpcpy (wchar_t *__dest, __const wchar_t *__src) __THROW;
629 /* Copy no more than N characters of SRC to DEST, returning the address of
630 the last character written into DEST. */
631 extern wchar_t *wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
636 /* Wide character I/O functions. */
637 #if defined __USE_ISOC99 || defined __USE_UNIX98
638 __BEGIN_NAMESPACE_C99
640 /* Select orientation for stream. */
641 extern int fwide (__FILE *__fp, int __mode) __THROW;
644 /* Write formatted output to STREAM.
646 This function is a possible cancellation point and therefore not
647 marked with __THROW. */
648 extern int fwprintf (__FILE *__restrict __stream,
649 __const wchar_t *__restrict __format, ...)
650 /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
651 /* Write formatted output to stdout.
653 This function is a possible cancellation point and therefore not
654 marked with __THROW. */
655 extern int wprintf (__const wchar_t *__restrict __format, ...)
656 /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
657 /* Write formatted output of at most N characters to S. */
658 extern int swprintf (wchar_t *__restrict __s, size_t __n,
659 __const wchar_t *__restrict __format, ...)
660 __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
662 /* Write formatted output to S from argument list ARG.
664 This function is a possible cancellation point and therefore not
665 marked with __THROW. */
666 extern int vfwprintf (__FILE *__restrict __s,
667 __const wchar_t *__restrict __format,
668 __gnuc_va_list __arg)
669 /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
670 /* Write formatted output to stdout from argument list ARG.
672 This function is a possible cancellation point and therefore not
673 marked with __THROW. */
674 extern int vwprintf (__const wchar_t *__restrict __format,
675 __gnuc_va_list __arg)
676 /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
677 /* Write formatted output of at most N character to S from argument
679 extern int vswprintf (wchar_t *__restrict __s, size_t __n,
680 __const wchar_t *__restrict __format,
681 __gnuc_va_list __arg)
682 __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
685 /* Read formatted input from STREAM.
687 This function is a possible cancellation point and therefore not
688 marked with __THROW. */
689 extern int fwscanf (__FILE *__restrict __stream,
690 __const wchar_t *__restrict __format, ...)
691 /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
692 /* Read formatted input from stdin.
694 This function is a possible cancellation point and therefore not
695 marked with __THROW. */
696 extern int wscanf (__const wchar_t *__restrict __format, ...)
697 /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
698 /* Read formatted input from S. */
699 extern int swscanf (__const wchar_t *__restrict __s,
700 __const wchar_t *__restrict __format, ...)
701 __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
704 #endif /* Use ISO C99 and Unix98. */
707 __BEGIN_NAMESPACE_C99
709 /* Read formatted input from S into argument list ARG.
711 This function is a possible cancellation point and therefore not
712 marked with __THROW. */
713 extern int vfwscanf (__FILE *__restrict __s,
714 __const wchar_t *__restrict __format,
715 __gnuc_va_list __arg)
716 /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
717 /* Read formatted input from stdin into argument list ARG.
719 This function is a possible cancellation point and therefore not
720 marked with __THROW. */
721 extern int vwscanf (__const wchar_t *__restrict __format,
722 __gnuc_va_list __arg)
723 /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
724 /* Read formatted input from S into argument list ARG. */
725 extern int vswscanf (__const wchar_t *__restrict __s,
726 __const wchar_t *__restrict __format,
727 __gnuc_va_list __arg)
728 __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
731 #endif /* Use ISO C99. */
734 __BEGIN_NAMESPACE_C99
735 /* Read a character from STREAM.
737 These functions are possible cancellation points and therefore not
738 marked with __THROW. */
739 extern wint_t fgetwc (__FILE *__stream);
740 extern wint_t getwc (__FILE *__stream);
742 /* Read a character from stdin.
744 This function is a possible cancellation point and therefore not
745 marked with __THROW. */
746 extern wint_t getwchar (void);
749 /* Write a character to STREAM.
751 These functions are possible cancellation points and therefore not
752 marked with __THROW. */
753 extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
754 extern wint_t putwc (wchar_t __wc, __FILE *__stream);
756 /* Write a character to stdout.
758 This function is a possible cancellation points and therefore not
759 marked with __THROW. */
760 extern wint_t putwchar (wchar_t __wc);
763 /* Get a newline-terminated wide character string of finite length
766 This function is a possible cancellation points and therefore not
767 marked with __THROW. */
768 extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
769 __FILE *__restrict __stream);
771 /* Write a string to STREAM.
773 This function is a possible cancellation points and therefore not
774 marked with __THROW. */
775 extern int fputws (__const wchar_t *__restrict __ws,
776 __FILE *__restrict __stream);
779 /* Push a character back onto the input buffer of STREAM.
781 This function is a possible cancellation points and therefore not
782 marked with __THROW. */
783 extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
788 /* These are defined to be equivalent to the `char' functions defined
791 These functions are not part of POSIX and therefore no official
792 cancellation point. But due to similarity with an POSIX interface
793 or due to the implementation they are cancellation points and
794 therefore not marked with __THROW. */
795 extern wint_t getwc_unlocked (__FILE *__stream);
796 extern wint_t getwchar_unlocked (void);
798 /* This is the wide character version of a GNU extension.
800 This function is not part of POSIX and therefore no official
801 cancellation point. But due to similarity with an POSIX interface
802 or due to the implementation it is a cancellation point and
803 therefore not marked with __THROW. */
804 extern wint_t fgetwc_unlocked (__FILE *__stream);
806 /* Faster version when locking is not necessary.
808 This function is not part of POSIX and therefore no official
809 cancellation point. But due to similarity with an POSIX interface
810 or due to the implementation it is a cancellation point and
811 therefore not marked with __THROW. */
812 extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
814 /* These are defined to be equivalent to the `char' functions defined
817 These functions are not part of POSIX and therefore no official
818 cancellation point. But due to similarity with an POSIX interface
819 or due to the implementation they are cancellation points and
820 therefore not marked with __THROW. */
821 extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
822 extern wint_t putwchar_unlocked (wchar_t __wc);
825 /* This function does the same as `fgetws' but does not lock the stream.
827 This function is not part of POSIX and therefore no official
828 cancellation point. But due to similarity with an POSIX interface
829 or due to the implementation it is a cancellation point and
830 therefore not marked with __THROW. */
831 extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
832 __FILE *__restrict __stream);
834 /* This function does the same as `fputws' but does not lock the stream.
836 This function is not part of POSIX and therefore no official
837 cancellation point. But due to similarity with an POSIX interface
838 or due to the implementation it is a cancellation point and
839 therefore not marked with __THROW. */
840 extern int fputws_unlocked (__const wchar_t *__restrict __ws,
841 __FILE *__restrict __stream);
845 __BEGIN_NAMESPACE_C99
846 /* Format TP into S according to FORMAT.
847 Write no more than MAXSIZE wide characters and return the number
848 of wide characters written, or 0 if it would exceed MAXSIZE. */
849 extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
850 __const wchar_t *__restrict __format,
851 __const struct tm *__restrict __tp) __THROW;
855 #ifdef __UCLIBC_HAS_XLOCALE__
856 # include <xlocale.h>
858 /* Similar to `wcsftime' but takes the information from
859 the provided locale and not the global locale. */
860 extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
861 __const wchar_t *__restrict __format,
862 __const struct tm *__restrict __tp,
863 __locale_t __loc) __THROW;
864 extern size_t __wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
865 __const wchar_t *__restrict __format,
866 __const struct tm *__restrict __tp,
867 __locale_t __loc) __THROW;
868 #endif /* __UCLIBC_HAS_XLOCALE__ */
871 /* The X/Open standard demands that most of the functions defined in
872 the <wctype.h> header must also appear here. This is probably
873 because some X/Open members wrote their implementation before the
874 ISO C standard was published and introduced the better solution.
875 We have to provide these definitions for compliance reasons but we
876 do this nonsense only if really necessary. */
877 #if defined __USE_UNIX98 && !defined __USE_GNU
878 # define __need_iswxxx
884 #endif /* _WCHAR_H defined */