wchar.h 27 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793
  1. /* Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. /*
  16. * ISO C99 Standard: 7.24
  17. * Extended multibyte and wide character utilities <wchar.h>
  18. */
  19. #ifndef _WCHAR_H
  20. #ifndef __need_mbstate_t
  21. # define _WCHAR_H 1
  22. # include <features.h>
  23. #endif
  24. #ifndef __UCLIBC_HAS_WCHAR__
  25. #error Attempted to include wchar.h when uClibc built without wide char support.
  26. #endif
  27. #ifdef _WCHAR_H
  28. /* Get FILE definition. */
  29. # define __need___FILE
  30. # ifdef __USE_UNIX98
  31. # define __need_FILE
  32. # endif
  33. # include <stdio.h>
  34. /* Get va_list definition. */
  35. # define __need___va_list
  36. # include <stdarg.h>
  37. /* Get size_t, wchar_t, wint_t and NULL from <stddef.h>. */
  38. # define __need_size_t
  39. # define __need_wchar_t
  40. # define __need_NULL
  41. #endif
  42. #define __need_wint_t
  43. #include <stddef.h>
  44. #include <bits/wchar.h>
  45. /* We try to get wint_t from <stddef.h>, but not all GCC versions define it
  46. there. So define it ourselves if it remains undefined. */
  47. #ifndef _WINT_T
  48. /* Integral type unchanged by default argument promotions that can
  49. hold any value corresponding to members of the extended character
  50. set, as well as at least one value that does not correspond to any
  51. member of the extended character set. */
  52. # define _WINT_T
  53. typedef unsigned int wint_t;
  54. #else
  55. /* Work around problems with the <stddef.h> file which doesn't put
  56. wint_t in the std namespace. */
  57. # if defined __cplusplus && defined _GLIBCPP_USE_NAMESPACES \
  58. && defined __WINT_TYPE__
  59. __BEGIN_NAMESPACE_STD
  60. typedef __WINT_TYPE__ wint_t;
  61. __END_NAMESPACE_STD
  62. # endif
  63. #endif
  64. #ifndef __mbstate_t_defined
  65. # define __mbstate_t_defined 1
  66. /* Conversion state information. */
  67. #if 1
  68. typedef struct
  69. {
  70. wchar_t __mask;
  71. wchar_t __wc;
  72. } __mbstate_t;
  73. #else
  74. typedef struct
  75. {
  76. int __count;
  77. union
  78. {
  79. wint_t __wch;
  80. char __wchb[4];
  81. } __value; /* Value so far. */
  82. } __mbstate_t;
  83. #endif
  84. #endif
  85. #undef __need_mbstate_t
  86. /* The rest of the file is only used if used if __need_mbstate_t is not
  87. defined. */
  88. #ifdef _WCHAR_H
  89. __BEGIN_NAMESPACE_C99
  90. /* Public type. */
  91. typedef __mbstate_t mbstate_t;
  92. __END_NAMESPACE_C99
  93. #ifdef __USE_GNU
  94. __USING_NAMESPACE_C99(mbstate_t)
  95. #endif
  96. #ifndef WCHAR_MIN
  97. /* These constants might also be defined in <inttypes.h>. */
  98. # define WCHAR_MIN __WCHAR_MIN
  99. # define WCHAR_MAX __WCHAR_MAX
  100. #endif
  101. #ifndef WEOF
  102. # define WEOF (0xffffffffu)
  103. #endif
  104. /* For XPG4 compliance we have to define the stuff from <wctype.h> here
  105. as well. */
  106. #if defined __USE_XOPEN && !defined __USE_UNIX98
  107. # include <wctype.h>
  108. #endif
  109. __BEGIN_DECLS
  110. __BEGIN_NAMESPACE_STD
  111. /* This incomplete type is defined in <time.h> but needed here because
  112. of `wcsftime'. */
  113. struct tm;
  114. /* XXX We have to clean this up at some point. Since tm is in the std
  115. namespace but wcsftime is in __c99 the type wouldn't be found
  116. without inserting it in the global namespace. */
  117. __USING_NAMESPACE_STD(tm)
  118. __END_NAMESPACE_STD
  119. __BEGIN_NAMESPACE_C99
  120. /* Copy SRC to DEST. */
  121. extern wchar_t *wcscpy (wchar_t *__restrict __dest,
  122. __const wchar_t *__restrict __src) __THROW;
  123. /* Copy no more than N wide-characters of SRC to DEST. */
  124. extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
  125. __const wchar_t *__restrict __src, size_t __n)
  126. __THROW;
  127. /* Append SRC onto DEST. */
  128. extern wchar_t *wcscat (wchar_t *__restrict __dest,
  129. __const wchar_t *__restrict __src) __THROW;
  130. libc_hidden_proto(wcscat)
  131. /* Append no more than N wide-characters of SRC onto DEST. */
  132. extern wchar_t *wcsncat (wchar_t *__restrict __dest,
  133. __const wchar_t *__restrict __src, size_t __n)
  134. __THROW;
  135. /* Compare S1 and S2. */
  136. extern int wcscmp (__const wchar_t *__s1, __const wchar_t *__s2)
  137. __THROW __attribute_pure__;
  138. libc_hidden_proto(wcscmp)
  139. /* Compare N wide-characters of S1 and S2. */
  140. extern int wcsncmp (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n)
  141. __THROW __attribute_pure__;
  142. __END_NAMESPACE_C99
  143. #ifdef __USE_GNU
  144. /* Compare S1 and S2, ignoring case. */
  145. extern int wcscasecmp (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
  146. /* Compare no more than N chars of S1 and S2, ignoring case. */
  147. extern int wcsncasecmp (__const wchar_t *__s1, __const wchar_t *__s2,
  148. size_t __n) __THROW;
  149. #ifdef __UCLIBC_HAS_XLOCALE__
  150. /* Similar to the two functions above but take the information from
  151. the provided locale and not the global locale. */
  152. # include <xlocale.h>
  153. extern int wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
  154. __locale_t __loc) __THROW;
  155. libc_hidden_proto(wcscasecmp_l)
  156. extern int wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
  157. size_t __n, __locale_t __loc) __THROW;
  158. libc_hidden_proto(wcsncasecmp_l)
  159. #endif /* __UCLIBC_HAS_XLOCALE__ */
  160. #endif
  161. __BEGIN_NAMESPACE_C99
  162. /* Compare S1 and S2, both interpreted as appropriate to the
  163. LC_COLLATE category of the current locale. */
  164. extern int wcscoll (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
  165. libc_hidden_proto(wcscoll)
  166. /* Transform S2 into array pointed to by S1 such that if wcscmp is
  167. applied to two transformed strings the result is the as applying
  168. `wcscoll' to the original strings. */
  169. extern size_t wcsxfrm (wchar_t *__restrict __s1,
  170. __const wchar_t *__restrict __s2, size_t __n) __THROW;
  171. __END_NAMESPACE_C99
  172. #ifdef __USE_GNU
  173. #ifdef __UCLIBC_HAS_XLOCALE__
  174. /* Similar to the two functions above but take the information from
  175. the provided locale and not the global locale. */
  176. /* Compare S1 and S2, both interpreted as appropriate to the
  177. LC_COLLATE category of the given locale. */
  178. extern int wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2,
  179. __locale_t __loc) __THROW;
  180. libc_hidden_proto(wcscoll_l)
  181. /* Transform S2 into array pointed to by S1 such that if wcscmp is
  182. applied to two transformed strings the result is the as applying
  183. `wcscoll' to the original strings. */
  184. extern size_t wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2,
  185. size_t __n, __locale_t __loc) __THROW;
  186. libc_hidden_proto(wcsxfrm_l)
  187. #endif /* __UCLIBC_HAS_XLOCALE__ */
  188. /* Duplicate S, returning an identical malloc'd string. */
  189. extern wchar_t *wcsdup (__const wchar_t *__s) __THROW __attribute_malloc__;
  190. #endif
  191. __BEGIN_NAMESPACE_C99
  192. /* Find the first occurrence of WC in WCS. */
  193. extern wchar_t *wcschr (__const wchar_t *__wcs, wchar_t __wc)
  194. __THROW __attribute_pure__;
  195. /* Find the last occurrence of WC in WCS. */
  196. extern wchar_t *wcsrchr (__const wchar_t *__wcs, wchar_t __wc)
  197. __THROW __attribute_pure__;
  198. __END_NAMESPACE_C99
  199. #ifdef __USE_GNU
  200. /* This function is similar to `wcschr'. But it returns a pointer to
  201. the closing NUL wide character in case C is not found in S. */
  202. extern wchar_t *wcschrnul (__const wchar_t *__s, wchar_t __wc)
  203. __THROW __attribute_pure__;
  204. #endif
  205. __BEGIN_NAMESPACE_C99
  206. /* Return the length of the initial segmet of WCS which
  207. consists entirely of wide characters not in REJECT. */
  208. extern size_t wcscspn (__const wchar_t *__wcs, __const wchar_t *__reject)
  209. __THROW __attribute_pure__;
  210. /* Return the length of the initial segmet of WCS which
  211. consists entirely of wide characters in ACCEPT. */
  212. extern size_t wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept)
  213. __THROW __attribute_pure__;
  214. libc_hidden_proto(wcsspn)
  215. /* Find the first occurrence in WCS of any character in ACCEPT. */
  216. extern wchar_t *wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept)
  217. __THROW __attribute_pure__;
  218. libc_hidden_proto(wcspbrk)
  219. /* Find the first occurrence of NEEDLE in HAYSTACK. */
  220. extern wchar_t *wcsstr (__const wchar_t *__haystack, __const wchar_t *__needle)
  221. __THROW __attribute_pure__;
  222. /* Divide WCS into tokens separated by characters in DELIM. */
  223. extern wchar_t *wcstok (wchar_t *__restrict __s,
  224. __const wchar_t *__restrict __delim,
  225. wchar_t **__restrict __ptr) __THROW;
  226. /* Return the number of wide characters in S. */
  227. extern size_t wcslen (__const wchar_t *__s) __THROW __attribute_pure__;
  228. libc_hidden_proto(wcslen)
  229. __END_NAMESPACE_C99
  230. #if defined __USE_XOPEN && defined __UCLIBC_SUSV3_LEGACY__
  231. /* Another name for `wcsstr' from XPG4. */
  232. extern wchar_t *wcswcs (__const wchar_t *__haystack, __const wchar_t *__needle)
  233. __THROW __attribute_pure__;
  234. #endif
  235. #ifdef __USE_GNU
  236. /* Return the number of wide characters in S, but at most MAXLEN. */
  237. extern size_t wcsnlen (__const wchar_t *__s, size_t __maxlen)
  238. __THROW __attribute_pure__;
  239. libc_hidden_proto(wcsnlen)
  240. #endif
  241. __BEGIN_NAMESPACE_C99
  242. /* Search N wide characters of S for C. */
  243. extern wchar_t *wmemchr (__const wchar_t *__s, wchar_t __c, size_t __n)
  244. __THROW __attribute_pure__;
  245. libc_hidden_proto(wmemchr)
  246. /* Compare N wide characters of S1 and S2. */
  247. extern int wmemcmp (__const wchar_t *__restrict __s1,
  248. __const wchar_t *__restrict __s2, size_t __n)
  249. __THROW __attribute_pure__;
  250. /* Copy N wide characters of SRC to DEST. */
  251. extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
  252. __const wchar_t *__restrict __s2, size_t __n) __THROW;
  253. libc_hidden_proto(wmemcpy)
  254. /* Copy N wide characters of SRC to DEST, guaranteeing
  255. correct behavior for overlapping strings. */
  256. extern wchar_t *wmemmove (wchar_t *__s1, __const wchar_t *__s2, size_t __n)
  257. __THROW;
  258. /* Set N wide characters of S to C. */
  259. extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
  260. __END_NAMESPACE_C99
  261. #ifdef __USE_GNU
  262. /* Copy N wide characters of SRC to DEST and return pointer to following
  263. wide character. */
  264. extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
  265. __const wchar_t *__restrict __s2, size_t __n)
  266. __THROW;
  267. libc_hidden_proto(wmempcpy)
  268. #endif
  269. __BEGIN_NAMESPACE_C99
  270. /* Determine whether C constitutes a valid (one-byte) multibyte
  271. character. */
  272. extern wint_t btowc (int __c) __THROW;
  273. libc_hidden_proto(btowc)
  274. /* Determine whether C corresponds to a member of the extended
  275. character set whose multibyte representation is a single byte. */
  276. extern int wctob (wint_t __c) __THROW;
  277. /* Determine whether PS points to an object representing the initial
  278. state. */
  279. extern int mbsinit (__const mbstate_t *__ps) __THROW __attribute_pure__;
  280. libc_hidden_proto(mbsinit)
  281. /* Write wide character representation of multibyte character pointed
  282. to by S to PWC. */
  283. extern size_t mbrtowc (wchar_t *__restrict __pwc,
  284. __const char *__restrict __s, size_t __n,
  285. mbstate_t *__p) __THROW;
  286. libc_hidden_proto(mbrtowc)
  287. /* Write multibyte representation of wide character WC to S. */
  288. extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
  289. mbstate_t *__restrict __ps) __THROW;
  290. libc_hidden_proto(wcrtomb)
  291. /* Return number of bytes in multibyte character pointed to by S. */
  292. #if 0 /* uClibc: disabled */
  293. extern size_t __mbrlen (__const char *__restrict __s, size_t __n,
  294. mbstate_t *__restrict __ps) __THROW;
  295. #endif
  296. extern size_t mbrlen (__const char *__restrict __s, size_t __n,
  297. mbstate_t *__restrict __ps) __THROW;
  298. libc_hidden_proto(mbrlen)
  299. /* Write wide character representation of multibyte character string
  300. SRC to DST. */
  301. extern size_t mbsrtowcs (wchar_t *__restrict __dst,
  302. __const char **__restrict __src, size_t __len,
  303. mbstate_t *__restrict __ps) __THROW;
  304. libc_hidden_proto(mbsrtowcs)
  305. /* Write multibyte character representation of wide character string
  306. SRC to DST. */
  307. extern size_t wcsrtombs (char *__restrict __dst,
  308. __const wchar_t **__restrict __src, size_t __len,
  309. mbstate_t *__restrict __ps) __THROW;
  310. libc_hidden_proto(wcsrtombs)
  311. __END_NAMESPACE_C99
  312. #ifdef __USE_GNU
  313. /* Write wide character representation of at most NMC bytes of the
  314. multibyte character string SRC to DST. */
  315. extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
  316. __const char **__restrict __src, size_t __nmc,
  317. size_t __len, mbstate_t *__restrict __ps) __THROW;
  318. libc_hidden_proto(mbsnrtowcs)
  319. /* Write multibyte character representation of at most NWC characters
  320. from the wide character string SRC to DST. */
  321. extern size_t wcsnrtombs (char *__restrict __dst,
  322. __const wchar_t **__restrict __src,
  323. size_t __nwc, size_t __len,
  324. mbstate_t *__restrict __ps) __THROW;
  325. libc_hidden_proto(wcsnrtombs)
  326. #endif /* use GNU */
  327. /* The following functions are extensions found in X/Open CAE. */
  328. #ifdef __USE_XOPEN
  329. /* Determine number of column positions required for C. */
  330. extern int wcwidth (wchar_t __c) __THROW;
  331. /* Determine number of column positions required for first N wide
  332. characters (or fewer if S ends before this) in S. */
  333. extern int wcswidth (__const wchar_t *__s, size_t __n) __THROW;
  334. libc_hidden_proto(wcswidth)
  335. #endif /* Use X/Open. */
  336. __BEGIN_NAMESPACE_C99
  337. #ifdef __UCLIBC_HAS_FLOATS__
  338. /* Convert initial portion of the wide string NPTR to `double'
  339. representation. */
  340. extern double wcstod (__const wchar_t *__restrict __nptr,
  341. wchar_t **__restrict __endptr) __THROW;
  342. #ifdef __USE_ISOC99
  343. /* Likewise for `float' and `long double' sizes of floating-point numbers. */
  344. extern float wcstof (__const wchar_t *__restrict __nptr,
  345. wchar_t **__restrict __endptr) __THROW;
  346. extern long double wcstold (__const wchar_t *__restrict __nptr,
  347. wchar_t **__restrict __endptr) __THROW;
  348. #endif /* C99 */
  349. #endif /* __UCLIBC_HAS_FLOATS__ */
  350. /* Convert initial portion of wide string NPTR to `long int'
  351. representation. */
  352. extern long int wcstol (__const wchar_t *__restrict __nptr,
  353. wchar_t **__restrict __endptr, int __base) __THROW;
  354. /* Convert initial portion of wide string NPTR to `unsigned long int'
  355. representation. */
  356. extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr,
  357. wchar_t **__restrict __endptr, int __base)
  358. __THROW;
  359. #if defined __USE_ISOC99 || (defined __GNUC__ && defined __USE_GNU)
  360. /* Convert initial portion of wide string NPTR to `long int'
  361. representation. */
  362. __extension__
  363. extern long long int wcstoll (__const wchar_t *__restrict __nptr,
  364. wchar_t **__restrict __endptr, int __base)
  365. __THROW;
  366. /* Convert initial portion of wide string NPTR to `unsigned long long int'
  367. representation. */
  368. __extension__
  369. extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr,
  370. wchar_t **__restrict __endptr,
  371. int __base) __THROW;
  372. #endif /* ISO C99 or GCC and GNU. */
  373. __END_NAMESPACE_C99
  374. #if defined __GNUC__ && defined __USE_GNU
  375. /* Convert initial portion of wide string NPTR to `long int'
  376. representation. */
  377. __extension__
  378. extern long long int wcstoq (__const wchar_t *__restrict __nptr,
  379. wchar_t **__restrict __endptr, int __base)
  380. __THROW;
  381. /* Convert initial portion of wide string NPTR to `unsigned long long int'
  382. representation. */
  383. __extension__
  384. extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr,
  385. wchar_t **__restrict __endptr,
  386. int __base) __THROW;
  387. #endif /* GCC and use GNU. */
  388. #ifdef __USE_GNU
  389. #ifdef __UCLIBC_HAS_XLOCALE__
  390. /* The concept of one static locale per category is not very well
  391. thought out. Many applications will need to process its data using
  392. information from several different locales. Another application is
  393. the implementation of the internationalization handling in the
  394. upcoming ISO C++ standard library. To support this another set of
  395. the functions using locale data exist which have an additional
  396. argument.
  397. Attention: all these functions are *not* standardized in any form.
  398. This is a proof-of-concept implementation. */
  399. /* Structure for reentrant locale using functions. This is an
  400. (almost) opaque type for the user level programs. */
  401. # include <xlocale.h>
  402. /* Special versions of the functions above which take the locale to
  403. use as an additional parameter. */
  404. extern long int wcstol_l (__const wchar_t *__restrict __nptr,
  405. wchar_t **__restrict __endptr, int __base,
  406. __locale_t __loc) __THROW;
  407. extern unsigned long int wcstoul_l (__const wchar_t *__restrict __nptr,
  408. wchar_t **__restrict __endptr,
  409. int __base, __locale_t __loc) __THROW;
  410. __extension__
  411. extern long long int wcstoll_l (__const wchar_t *__restrict __nptr,
  412. wchar_t **__restrict __endptr,
  413. int __base, __locale_t __loc) __THROW;
  414. __extension__
  415. extern unsigned long long int wcstoull_l (__const wchar_t *__restrict __nptr,
  416. wchar_t **__restrict __endptr,
  417. int __base, __locale_t __loc)
  418. __THROW;
  419. #ifdef __UCLIBC_HAS_FLOATS__
  420. extern double wcstod_l (__const wchar_t *__restrict __nptr,
  421. wchar_t **__restrict __endptr, __locale_t __loc)
  422. __THROW;
  423. extern float wcstof_l (__const wchar_t *__restrict __nptr,
  424. wchar_t **__restrict __endptr, __locale_t __loc)
  425. __THROW;
  426. extern long double wcstold_l (__const wchar_t *__restrict __nptr,
  427. wchar_t **__restrict __endptr,
  428. __locale_t __loc) __THROW;
  429. #endif /* __UCLIBC_HAS_FLOATS__ */
  430. #endif /* __UCLIBC_HAS_XLOCALE__ */
  431. #endif /* GNU */
  432. #ifdef __USE_GNU
  433. /* Copy SRC to DEST, returning the address of the terminating L'\0' in
  434. DEST. */
  435. extern wchar_t *wcpcpy (wchar_t *__dest, __const wchar_t *__src) __THROW;
  436. /* Copy no more than N characters of SRC to DEST, returning the address of
  437. the last character written into DEST. */
  438. extern wchar_t *wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
  439. __THROW;
  440. #endif /* use GNU */
  441. /* Wide character I/O functions. */
  442. #if defined __USE_ISOC99 || defined __USE_UNIX98
  443. __BEGIN_NAMESPACE_C99
  444. /* Select orientation for stream. */
  445. extern int fwide (__FILE *__fp, int __mode) __THROW;
  446. /* Write formatted output to STREAM.
  447. This function is a possible cancellation point and therefore not
  448. marked with __THROW. */
  449. extern int fwprintf (__FILE *__restrict __stream,
  450. __const wchar_t *__restrict __format, ...)
  451. /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
  452. /* Write formatted output to stdout.
  453. This function is a possible cancellation point and therefore not
  454. marked with __THROW. */
  455. extern int wprintf (__const wchar_t *__restrict __format, ...)
  456. /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
  457. /* Write formatted output of at most N characters to S. */
  458. extern int swprintf (wchar_t *__restrict __s, size_t __n,
  459. __const wchar_t *__restrict __format, ...)
  460. __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
  461. /* Write formatted output to S from argument list ARG.
  462. This function is a possible cancellation point and therefore not
  463. marked with __THROW. */
  464. extern int vfwprintf (__FILE *__restrict __s,
  465. __const wchar_t *__restrict __format,
  466. __gnuc_va_list __arg)
  467. /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
  468. libc_hidden_proto(vfwprintf)
  469. /* Write formatted output to stdout from argument list ARG.
  470. This function is a possible cancellation point and therefore not
  471. marked with __THROW. */
  472. extern int vwprintf (__const wchar_t *__restrict __format,
  473. __gnuc_va_list __arg)
  474. /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
  475. /* Write formatted output of at most N character to S from argument
  476. list ARG. */
  477. extern int vswprintf (wchar_t *__restrict __s, size_t __n,
  478. __const wchar_t *__restrict __format,
  479. __gnuc_va_list __arg)
  480. __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
  481. libc_hidden_proto(vswprintf)
  482. /* Read formatted input from STREAM.
  483. This function is a possible cancellation point and therefore not
  484. marked with __THROW. */
  485. extern int fwscanf (__FILE *__restrict __stream,
  486. __const wchar_t *__restrict __format, ...)
  487. /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
  488. /* Read formatted input from stdin.
  489. This function is a possible cancellation point and therefore not
  490. marked with __THROW. */
  491. extern int wscanf (__const wchar_t *__restrict __format, ...)
  492. /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
  493. /* Read formatted input from S. */
  494. extern int swscanf (__const wchar_t *__restrict __s,
  495. __const wchar_t *__restrict __format, ...)
  496. __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
  497. __END_NAMESPACE_C99
  498. #endif /* Use ISO C99 and Unix98. */
  499. #ifdef __USE_ISOC99
  500. __BEGIN_NAMESPACE_C99
  501. /* Read formatted input from S into argument list ARG.
  502. This function is a possible cancellation point and therefore not
  503. marked with __THROW. */
  504. extern int vfwscanf (__FILE *__restrict __s,
  505. __const wchar_t *__restrict __format,
  506. __gnuc_va_list __arg)
  507. /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
  508. libc_hidden_proto(vfwscanf)
  509. /* Read formatted input from stdin into argument list ARG.
  510. This function is a possible cancellation point and therefore not
  511. marked with __THROW. */
  512. extern int vwscanf (__const wchar_t *__restrict __format,
  513. __gnuc_va_list __arg)
  514. /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
  515. /* Read formatted input from S into argument list ARG. */
  516. extern int vswscanf (__const wchar_t *__restrict __s,
  517. __const wchar_t *__restrict __format,
  518. __gnuc_va_list __arg)
  519. __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
  520. libc_hidden_proto(vswscanf)
  521. __END_NAMESPACE_C99
  522. #endif /* Use ISO C99. */
  523. __BEGIN_NAMESPACE_C99
  524. /* Read a character from STREAM.
  525. These functions are possible cancellation points and therefore not
  526. marked with __THROW. */
  527. extern wint_t fgetwc (__FILE *__stream);
  528. libc_hidden_proto(fgetwc)
  529. extern wint_t getwc (__FILE *__stream);
  530. /* Read a character from stdin.
  531. This function is a possible cancellation point and therefore not
  532. marked with __THROW. */
  533. extern wint_t getwchar (void);
  534. /* Write a character to STREAM.
  535. These functions are possible cancellation points and therefore not
  536. marked with __THROW. */
  537. extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
  538. extern wint_t putwc (wchar_t __wc, __FILE *__stream);
  539. /* Write a character to stdout.
  540. This function is a possible cancellation points and therefore not
  541. marked with __THROW. */
  542. extern wint_t putwchar (wchar_t __wc);
  543. /* Get a newline-terminated wide character string of finite length
  544. from STREAM.
  545. This function is a possible cancellation points and therefore not
  546. marked with __THROW. */
  547. extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
  548. __FILE *__restrict __stream);
  549. /* Write a string to STREAM.
  550. This function is a possible cancellation points and therefore not
  551. marked with __THROW. */
  552. extern int fputws (__const wchar_t *__restrict __ws,
  553. __FILE *__restrict __stream);
  554. libc_hidden_proto(fputws)
  555. /* Push a character back onto the input buffer of STREAM.
  556. This function is a possible cancellation points and therefore not
  557. marked with __THROW. */
  558. extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
  559. libc_hidden_proto(ungetwc)
  560. __END_NAMESPACE_C99
  561. #ifdef __USE_GNU
  562. /* These are defined to be equivalent to the `char' functions defined
  563. in POSIX.1:1996.
  564. These functions are not part of POSIX and therefore no official
  565. cancellation point. But due to similarity with an POSIX interface
  566. or due to the implementation they are cancellation points and
  567. therefore not marked with __THROW. */
  568. extern wint_t getwc_unlocked (__FILE *__stream);
  569. extern wint_t getwchar_unlocked (void);
  570. /* This is the wide character version of a GNU extension.
  571. This function is not part of POSIX and therefore no official
  572. cancellation point. But due to similarity with an POSIX interface
  573. or due to the implementation it is a cancellation point and
  574. therefore not marked with __THROW. */
  575. extern wint_t fgetwc_unlocked (__FILE *__stream);
  576. libc_hidden_proto(fgetwc_unlocked)
  577. /* Faster version when locking is not necessary.
  578. This function is not part of POSIX and therefore no official
  579. cancellation point. But due to similarity with an POSIX interface
  580. or due to the implementation it is a cancellation point and
  581. therefore not marked with __THROW. */
  582. extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
  583. libc_hidden_proto(fputwc_unlocked)
  584. /* These are defined to be equivalent to the `char' functions defined
  585. in POSIX.1:1996.
  586. These functions are not part of POSIX and therefore no official
  587. cancellation point. But due to similarity with an POSIX interface
  588. or due to the implementation they are cancellation points and
  589. therefore not marked with __THROW. */
  590. extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
  591. extern wint_t putwchar_unlocked (wchar_t __wc);
  592. /* This function does the same as `fgetws' but does not lock the stream.
  593. This function is not part of POSIX and therefore no official
  594. cancellation point. But due to similarity with an POSIX interface
  595. or due to the implementation it is a cancellation point and
  596. therefore not marked with __THROW. */
  597. extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
  598. __FILE *__restrict __stream);
  599. libc_hidden_proto(fgetws_unlocked)
  600. /* This function does the same as `fputws' but does not lock the stream.
  601. This function is not part of POSIX and therefore no official
  602. cancellation point. But due to similarity with an POSIX interface
  603. or due to the implementation it is a cancellation point and
  604. therefore not marked with __THROW. */
  605. extern int fputws_unlocked (__const wchar_t *__restrict __ws,
  606. __FILE *__restrict __stream);
  607. libc_hidden_proto(fputws_unlocked)
  608. #endif
  609. __BEGIN_NAMESPACE_C99
  610. /* Format TP into S according to FORMAT.
  611. Write no more than MAXSIZE wide characters and return the number
  612. of wide characters written, or 0 if it would exceed MAXSIZE. */
  613. extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
  614. __const wchar_t *__restrict __format,
  615. __const struct tm *__restrict __tp) __THROW;
  616. __END_NAMESPACE_C99
  617. # if defined __USE_GNU && defined __UCLIBC_HAS_XLOCALE__
  618. # include <xlocale.h>
  619. /* Similar to `wcsftime' but takes the information from
  620. the provided locale and not the global locale. */
  621. extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
  622. __const wchar_t *__restrict __format,
  623. __const struct tm *__restrict __tp,
  624. __locale_t __loc) __THROW;
  625. libc_hidden_proto(wcsftime_l)
  626. # endif
  627. /* The X/Open standard demands that most of the functions defined in
  628. the <wctype.h> header must also appear here. This is probably
  629. because some X/Open members wrote their implementation before the
  630. ISO C standard was published and introduced the better solution.
  631. We have to provide these definitions for compliance reasons but we
  632. do this nonsense only if really necessary. */
  633. #if defined __USE_UNIX98 && !defined __USE_GNU
  634. # define __need_iswxxx
  635. # include <wctype.h>
  636. #endif
  637. #ifdef _LIBC
  638. extern size_t __wcslcpy(wchar_t *__restrict dst,
  639. const wchar_t *__restrict src, size_t n) attribute_hidden;
  640. #endif
  641. __END_DECLS
  642. #endif /* _WCHAR_H defined */
  643. #endif /* wchar.h */