1 | /* Copyright (C) 1995-2017 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
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. |
8 | |
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. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | /* |
19 | * ISO C99 Standard: 7.24 |
20 | * Extended multibyte and wide character utilities <wchar.h> |
21 | */ |
22 | |
23 | #ifndef _WCHAR_H |
24 | #define _WCHAR_H 1 |
25 | |
26 | #define |
27 | #include <bits/libc-header-start.h> |
28 | |
29 | /* Gather machine dependent type support. */ |
30 | #include <bits/floatn.h> |
31 | |
32 | #define __need_size_t |
33 | #define __need_wchar_t |
34 | #define __need_NULL |
35 | #include <stddef.h> |
36 | |
37 | #define __need___va_list |
38 | #include <stdarg.h> |
39 | |
40 | #include <bits/wchar.h> |
41 | #include <bits/types/wint_t.h> |
42 | #include <bits/types/mbstate_t.h> |
43 | #include <bits/types/__FILE.h> |
44 | |
45 | #if defined __USE_UNIX98 || defined __USE_XOPEN2K |
46 | # include <bits/types/FILE.h> |
47 | #endif |
48 | #ifdef __USE_XOPEN2K8 |
49 | # include <bits/types/locale_t.h> |
50 | #endif |
51 | |
52 | /* Tell the caller that we provide correct C++ prototypes. */ |
53 | #if defined __cplusplus && __GNUC_PREREQ (4, 4) |
54 | # define __CORRECT_ISO_CPP_WCHAR_H_PROTO |
55 | #endif |
56 | |
57 | #ifndef WCHAR_MIN |
58 | /* These constants might also be defined in <inttypes.h>. */ |
59 | # define WCHAR_MIN __WCHAR_MIN |
60 | # define WCHAR_MAX __WCHAR_MAX |
61 | #endif |
62 | |
63 | #ifndef WEOF |
64 | # define WEOF (0xffffffffu) |
65 | #endif |
66 | |
67 | /* All versions of XPG prior to the publication of ISO C99 required |
68 | the bulk of <wctype.h>'s declarations to appear in this header |
69 | (because <wctype.h> did not exist prior to C99). In POSIX.1-2001 |
70 | those declarations were marked as XSI extensions; in -2008 they |
71 | were additionally marked as obsolescent. _GNU_SOURCE mode |
72 | anticipates the removal of these declarations in the next revision |
73 | of POSIX. */ |
74 | #if (defined __USE_XOPEN && !defined __USE_GNU \ |
75 | && !(defined __USE_XOPEN2K && !defined __USE_XOPEN2KXSI)) |
76 | # include <bits/wctype-wchar.h> |
77 | #endif |
78 | |
79 | __BEGIN_DECLS |
80 | |
81 | /* This incomplete type is defined in <time.h> but needed here because |
82 | of `wcsftime'. */ |
83 | struct tm; |
84 | |
85 | |
86 | /* Copy SRC to DEST. */ |
87 | extern wchar_t *wcscpy (wchar_t *__restrict __dest, |
88 | const wchar_t *__restrict __src) |
89 | __THROW __nonnull ((1, 2)); |
90 | |
91 | /* Copy no more than N wide-characters of SRC to DEST. */ |
92 | extern wchar_t *wcsncpy (wchar_t *__restrict __dest, |
93 | const wchar_t *__restrict __src, size_t __n) |
94 | __THROW __nonnull ((1, 2)); |
95 | |
96 | /* Append SRC onto DEST. */ |
97 | extern wchar_t *wcscat (wchar_t *__restrict __dest, |
98 | const wchar_t *__restrict __src) |
99 | __THROW __nonnull ((1, 2)); |
100 | /* Append no more than N wide-characters of SRC onto DEST. */ |
101 | extern wchar_t *wcsncat (wchar_t *__restrict __dest, |
102 | const wchar_t *__restrict __src, size_t __n) |
103 | __THROW __nonnull ((1, 2)); |
104 | |
105 | /* Compare S1 and S2. */ |
106 | extern int wcscmp (const wchar_t *__s1, const wchar_t *__s2) |
107 | __THROW __attribute_pure__ __nonnull ((1, 2)); |
108 | /* Compare N wide-characters of S1 and S2. */ |
109 | extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n) |
110 | __THROW __attribute_pure__ __nonnull ((1, 2)); |
111 | |
112 | #ifdef __USE_XOPEN2K8 |
113 | /* Compare S1 and S2, ignoring case. */ |
114 | extern int wcscasecmp (const wchar_t *__s1, const wchar_t *__s2) __THROW; |
115 | |
116 | /* Compare no more than N chars of S1 and S2, ignoring case. */ |
117 | extern int wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2, |
118 | size_t __n) __THROW; |
119 | |
120 | /* Similar to the two functions above but take the information from |
121 | the provided locale and not the global locale. */ |
122 | extern int wcscasecmp_l (const wchar_t *__s1, const wchar_t *__s2, |
123 | locale_t __loc) __THROW; |
124 | |
125 | extern int wcsncasecmp_l (const wchar_t *__s1, const wchar_t *__s2, |
126 | size_t __n, locale_t __loc) __THROW; |
127 | #endif |
128 | |
129 | /* Compare S1 and S2, both interpreted as appropriate to the |
130 | LC_COLLATE category of the current locale. */ |
131 | extern int wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW; |
132 | /* Transform S2 into array pointed to by S1 such that if wcscmp is |
133 | applied to two transformed strings the result is the as applying |
134 | `wcscoll' to the original strings. */ |
135 | extern size_t wcsxfrm (wchar_t *__restrict __s1, |
136 | const wchar_t *__restrict __s2, size_t __n) __THROW; |
137 | |
138 | #ifdef __USE_XOPEN2K8 |
139 | /* Similar to the two functions above but take the information from |
140 | the provided locale and not the global locale. */ |
141 | |
142 | /* Compare S1 and S2, both interpreted as appropriate to the |
143 | LC_COLLATE category of the given locale. */ |
144 | extern int wcscoll_l (const wchar_t *__s1, const wchar_t *__s2, |
145 | locale_t __loc) __THROW; |
146 | |
147 | /* Transform S2 into array pointed to by S1 such that if wcscmp is |
148 | applied to two transformed strings the result is the as applying |
149 | `wcscoll' to the original strings. */ |
150 | extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2, |
151 | size_t __n, locale_t __loc) __THROW; |
152 | |
153 | /* Duplicate S, returning an identical malloc'd string. */ |
154 | extern wchar_t *wcsdup (const wchar_t *__s) __THROW __attribute_malloc__; |
155 | #endif |
156 | |
157 | /* Find the first occurrence of WC in WCS. */ |
158 | #ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO |
159 | extern "C++" wchar_t *wcschr (wchar_t *__wcs, wchar_t __wc) |
160 | __THROW __asm ("wcschr" ) __attribute_pure__; |
161 | extern "C++" const wchar_t *wcschr (const wchar_t *__wcs, wchar_t __wc) |
162 | __THROW __asm ("wcschr" ) __attribute_pure__; |
163 | #else |
164 | extern wchar_t *wcschr (const wchar_t *__wcs, wchar_t __wc) |
165 | __THROW __attribute_pure__; |
166 | #endif |
167 | /* Find the last occurrence of WC in WCS. */ |
168 | #ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO |
169 | extern "C++" wchar_t *wcsrchr (wchar_t *__wcs, wchar_t __wc) |
170 | __THROW __asm ("wcsrchr" ) __attribute_pure__; |
171 | extern "C++" const wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc) |
172 | __THROW __asm ("wcsrchr" ) __attribute_pure__; |
173 | #else |
174 | extern wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc) |
175 | __THROW __attribute_pure__; |
176 | #endif |
177 | |
178 | #ifdef __USE_GNU |
179 | /* This function is similar to `wcschr'. But it returns a pointer to |
180 | the closing NUL wide character in case C is not found in S. */ |
181 | extern wchar_t *wcschrnul (const wchar_t *__s, wchar_t __wc) |
182 | __THROW __attribute_pure__; |
183 | #endif |
184 | |
185 | /* Return the length of the initial segmet of WCS which |
186 | consists entirely of wide characters not in REJECT. */ |
187 | extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject) |
188 | __THROW __attribute_pure__; |
189 | /* Return the length of the initial segmet of WCS which |
190 | consists entirely of wide characters in ACCEPT. */ |
191 | extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept) |
192 | __THROW __attribute_pure__; |
193 | /* Find the first occurrence in WCS of any character in ACCEPT. */ |
194 | #ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO |
195 | extern "C++" wchar_t *wcspbrk (wchar_t *__wcs, const wchar_t *__accept) |
196 | __THROW __asm ("wcspbrk" ) __attribute_pure__; |
197 | extern "C++" const wchar_t *wcspbrk (const wchar_t *__wcs, |
198 | const wchar_t *__accept) |
199 | __THROW __asm ("wcspbrk" ) __attribute_pure__; |
200 | #else |
201 | extern wchar_t *wcspbrk (const wchar_t *__wcs, const wchar_t *__accept) |
202 | __THROW __attribute_pure__; |
203 | #endif |
204 | /* Find the first occurrence of NEEDLE in HAYSTACK. */ |
205 | #ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO |
206 | extern "C++" wchar_t *wcsstr (wchar_t *__haystack, const wchar_t *__needle) |
207 | __THROW __asm ("wcsstr" ) __attribute_pure__; |
208 | extern "C++" const wchar_t *wcsstr (const wchar_t *__haystack, |
209 | const wchar_t *__needle) |
210 | __THROW __asm ("wcsstr" ) __attribute_pure__; |
211 | #else |
212 | extern wchar_t *wcsstr (const wchar_t *__haystack, const wchar_t *__needle) |
213 | __THROW __attribute_pure__; |
214 | #endif |
215 | |
216 | /* Divide WCS into tokens separated by characters in DELIM. */ |
217 | extern wchar_t *wcstok (wchar_t *__restrict __s, |
218 | const wchar_t *__restrict __delim, |
219 | wchar_t **__restrict __ptr) __THROW; |
220 | |
221 | /* Return the number of wide characters in S. */ |
222 | extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__; |
223 | |
224 | #ifdef __USE_XOPEN |
225 | /* Another name for `wcsstr' from XPG4. */ |
226 | # ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO |
227 | extern "C++" wchar_t *wcswcs (wchar_t *__haystack, const wchar_t *__needle) |
228 | __THROW __asm ("wcswcs" ) __attribute_pure__; |
229 | extern "C++" const wchar_t *wcswcs (const wchar_t *__haystack, |
230 | const wchar_t *__needle) |
231 | __THROW __asm ("wcswcs" ) __attribute_pure__; |
232 | # else |
233 | extern wchar_t *wcswcs (const wchar_t *__haystack, const wchar_t *__needle) |
234 | __THROW __attribute_pure__; |
235 | # endif |
236 | #endif |
237 | |
238 | #ifdef __USE_XOPEN2K8 |
239 | /* Return the number of wide characters in S, but at most MAXLEN. */ |
240 | extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen) |
241 | __THROW __attribute_pure__; |
242 | #endif |
243 | |
244 | |
245 | /* Search N wide characters of S for C. */ |
246 | #ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO |
247 | extern "C++" wchar_t *wmemchr (wchar_t *__s, wchar_t __c, size_t __n) |
248 | __THROW __asm ("wmemchr" ) __attribute_pure__; |
249 | extern "C++" const wchar_t *wmemchr (const wchar_t *__s, wchar_t __c, |
250 | size_t __n) |
251 | __THROW __asm ("wmemchr" ) __attribute_pure__; |
252 | #else |
253 | extern wchar_t *wmemchr (const wchar_t *__s, wchar_t __c, size_t __n) |
254 | __THROW __attribute_pure__; |
255 | #endif |
256 | |
257 | /* Compare N wide characters of S1 and S2. */ |
258 | extern int wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n) |
259 | __THROW __attribute_pure__; |
260 | |
261 | /* Copy N wide characters of SRC to DEST. */ |
262 | extern wchar_t *wmemcpy (wchar_t *__restrict __s1, |
263 | const wchar_t *__restrict __s2, size_t __n) __THROW; |
264 | |
265 | /* Copy N wide characters of SRC to DEST, guaranteeing |
266 | correct behavior for overlapping strings. */ |
267 | extern wchar_t *wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n) |
268 | __THROW; |
269 | |
270 | /* Set N wide characters of S to C. */ |
271 | extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW; |
272 | |
273 | #ifdef __USE_GNU |
274 | /* Copy N wide characters of SRC to DEST and return pointer to following |
275 | wide character. */ |
276 | extern wchar_t *wmempcpy (wchar_t *__restrict __s1, |
277 | const wchar_t *__restrict __s2, size_t __n) |
278 | __THROW; |
279 | #endif |
280 | |
281 | |
282 | /* Determine whether C constitutes a valid (one-byte) multibyte |
283 | character. */ |
284 | extern wint_t btowc (int __c) __THROW; |
285 | |
286 | /* Determine whether C corresponds to a member of the extended |
287 | character set whose multibyte representation is a single byte. */ |
288 | extern int wctob (wint_t __c) __THROW; |
289 | |
290 | /* Determine whether PS points to an object representing the initial |
291 | state. */ |
292 | extern int mbsinit (const mbstate_t *__ps) __THROW __attribute_pure__; |
293 | |
294 | /* Write wide character representation of multibyte character pointed |
295 | to by S to PWC. */ |
296 | extern size_t mbrtowc (wchar_t *__restrict __pwc, |
297 | const char *__restrict __s, size_t __n, |
298 | mbstate_t *__restrict __p) __THROW; |
299 | |
300 | /* Write multibyte representation of wide character WC to S. */ |
301 | extern size_t wcrtomb (char *__restrict __s, wchar_t __wc, |
302 | mbstate_t *__restrict __ps) __THROW; |
303 | |
304 | /* Return number of bytes in multibyte character pointed to by S. */ |
305 | extern size_t __mbrlen (const char *__restrict __s, size_t __n, |
306 | mbstate_t *__restrict __ps) __THROW; |
307 | extern size_t mbrlen (const char *__restrict __s, size_t __n, |
308 | mbstate_t *__restrict __ps) __THROW; |
309 | |
310 | #ifdef __USE_EXTERN_INLINES |
311 | /* Define inline function as optimization. */ |
312 | |
313 | /* We can use the BTOWC and WCTOB optimizations since we know that all |
314 | locales must use ASCII encoding for the values in the ASCII range |
315 | and because the wchar_t encoding is always ISO 10646. */ |
316 | extern wint_t __btowc_alias (int __c) __asm ("btowc" ); |
317 | __extern_inline wint_t |
318 | __NTH (btowc (int __c)) |
319 | { return (__builtin_constant_p (__c) && __c >= '\0' && __c <= '\x7f' |
320 | ? (wint_t) __c : __btowc_alias (__c)); } |
321 | |
322 | extern int __wctob_alias (wint_t __c) __asm ("wctob" ); |
323 | __extern_inline int |
324 | __NTH (wctob (wint_t __wc)) |
325 | { return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f' |
326 | ? (int) __wc : __wctob_alias (__wc)); } |
327 | |
328 | __extern_inline size_t |
329 | __NTH (mbrlen (const char *__restrict __s, size_t __n, |
330 | mbstate_t *__restrict __ps)) |
331 | { return (__ps != NULL |
332 | ? mbrtowc (NULL, __s, __n, __ps) : __mbrlen (__s, __n, NULL)); } |
333 | #endif |
334 | |
335 | /* Write wide character representation of multibyte character string |
336 | SRC to DST. */ |
337 | extern size_t mbsrtowcs (wchar_t *__restrict __dst, |
338 | const char **__restrict __src, size_t __len, |
339 | mbstate_t *__restrict __ps) __THROW; |
340 | |
341 | /* Write multibyte character representation of wide character string |
342 | SRC to DST. */ |
343 | extern size_t wcsrtombs (char *__restrict __dst, |
344 | const wchar_t **__restrict __src, size_t __len, |
345 | mbstate_t *__restrict __ps) __THROW; |
346 | |
347 | |
348 | #ifdef __USE_XOPEN2K8 |
349 | /* Write wide character representation of at most NMC bytes of the |
350 | multibyte character string SRC to DST. */ |
351 | extern size_t mbsnrtowcs (wchar_t *__restrict __dst, |
352 | const char **__restrict __src, size_t __nmc, |
353 | size_t __len, mbstate_t *__restrict __ps) __THROW; |
354 | |
355 | /* Write multibyte character representation of at most NWC characters |
356 | from the wide character string SRC to DST. */ |
357 | extern size_t wcsnrtombs (char *__restrict __dst, |
358 | const wchar_t **__restrict __src, |
359 | size_t __nwc, size_t __len, |
360 | mbstate_t *__restrict __ps) __THROW; |
361 | #endif /* use POSIX 2008 */ |
362 | |
363 | |
364 | /* The following functions are extensions found in X/Open CAE. */ |
365 | #ifdef __USE_XOPEN |
366 | /* Determine number of column positions required for C. */ |
367 | extern int wcwidth (wchar_t __c) __THROW; |
368 | |
369 | /* Determine number of column positions required for first N wide |
370 | characters (or fewer if S ends before this) in S. */ |
371 | extern int wcswidth (const wchar_t *__s, size_t __n) __THROW; |
372 | #endif /* Use X/Open. */ |
373 | |
374 | |
375 | /* Convert initial portion of the wide string NPTR to `double' |
376 | representation. */ |
377 | extern double wcstod (const wchar_t *__restrict __nptr, |
378 | wchar_t **__restrict __endptr) __THROW; |
379 | |
380 | #ifdef __USE_ISOC99 |
381 | /* Likewise for `float' and `long double' sizes of floating-point numbers. */ |
382 | extern float wcstof (const wchar_t *__restrict __nptr, |
383 | wchar_t **__restrict __endptr) __THROW; |
384 | extern long double wcstold (const wchar_t *__restrict __nptr, |
385 | wchar_t **__restrict __endptr) __THROW; |
386 | #endif /* C99 */ |
387 | |
388 | /* Likewise for `_Float128' when support is enabled. */ |
389 | #if __HAVE_FLOAT128 && defined __USE_GNU |
390 | extern _Float128 wcstof128 (const wchar_t *__restrict __nptr, |
391 | wchar_t **__restrict __endptr) __THROW; |
392 | #endif |
393 | |
394 | |
395 | /* Convert initial portion of wide string NPTR to `long int' |
396 | representation. */ |
397 | extern long int wcstol (const wchar_t *__restrict __nptr, |
398 | wchar_t **__restrict __endptr, int __base) __THROW; |
399 | |
400 | /* Convert initial portion of wide string NPTR to `unsigned long int' |
401 | representation. */ |
402 | extern unsigned long int wcstoul (const wchar_t *__restrict __nptr, |
403 | wchar_t **__restrict __endptr, int __base) |
404 | __THROW; |
405 | |
406 | #ifdef __USE_ISOC99 |
407 | /* Convert initial portion of wide string NPTR to `long long int' |
408 | representation. */ |
409 | __extension__ |
410 | extern long long int wcstoll (const wchar_t *__restrict __nptr, |
411 | wchar_t **__restrict __endptr, int __base) |
412 | __THROW; |
413 | |
414 | /* Convert initial portion of wide string NPTR to `unsigned long long int' |
415 | representation. */ |
416 | __extension__ |
417 | extern unsigned long long int wcstoull (const wchar_t *__restrict __nptr, |
418 | wchar_t **__restrict __endptr, |
419 | int __base) __THROW; |
420 | #endif /* ISO C99. */ |
421 | |
422 | #ifdef __USE_GNU |
423 | /* Convert initial portion of wide string NPTR to `long long int' |
424 | representation. */ |
425 | __extension__ |
426 | extern long long int wcstoq (const wchar_t *__restrict __nptr, |
427 | wchar_t **__restrict __endptr, int __base) |
428 | __THROW; |
429 | |
430 | /* Convert initial portion of wide string NPTR to `unsigned long long int' |
431 | representation. */ |
432 | __extension__ |
433 | extern unsigned long long int wcstouq (const wchar_t *__restrict __nptr, |
434 | wchar_t **__restrict __endptr, |
435 | int __base) __THROW; |
436 | #endif /* Use GNU. */ |
437 | |
438 | #ifdef __USE_GNU |
439 | /* Parallel versions of the functions above which take the locale to |
440 | use as an additional parameter. These are GNU extensions inspired |
441 | by the POSIX.1-2008 extended locale API. */ |
442 | extern long int wcstol_l (const wchar_t *__restrict __nptr, |
443 | wchar_t **__restrict __endptr, int __base, |
444 | locale_t __loc) __THROW; |
445 | |
446 | extern unsigned long int wcstoul_l (const wchar_t *__restrict __nptr, |
447 | wchar_t **__restrict __endptr, |
448 | int __base, locale_t __loc) __THROW; |
449 | |
450 | __extension__ |
451 | extern long long int wcstoll_l (const wchar_t *__restrict __nptr, |
452 | wchar_t **__restrict __endptr, |
453 | int __base, locale_t __loc) __THROW; |
454 | |
455 | __extension__ |
456 | extern unsigned long long int wcstoull_l (const wchar_t *__restrict __nptr, |
457 | wchar_t **__restrict __endptr, |
458 | int __base, locale_t __loc) |
459 | __THROW; |
460 | |
461 | extern double wcstod_l (const wchar_t *__restrict __nptr, |
462 | wchar_t **__restrict __endptr, locale_t __loc) |
463 | __THROW; |
464 | |
465 | extern float wcstof_l (const wchar_t *__restrict __nptr, |
466 | wchar_t **__restrict __endptr, locale_t __loc) |
467 | __THROW; |
468 | |
469 | extern long double wcstold_l (const wchar_t *__restrict __nptr, |
470 | wchar_t **__restrict __endptr, |
471 | locale_t __loc) __THROW; |
472 | |
473 | # if __HAVE_FLOAT128 |
474 | extern _Float128 wcstof128_l (const wchar_t *__restrict __nptr, |
475 | wchar_t **__restrict __endptr, |
476 | locale_t __loc) __THROW; |
477 | # endif |
478 | #endif /* use GNU */ |
479 | |
480 | |
481 | #ifdef __USE_XOPEN2K8 |
482 | /* Copy SRC to DEST, returning the address of the terminating L'\0' in |
483 | DEST. */ |
484 | extern wchar_t *wcpcpy (wchar_t *__restrict __dest, |
485 | const wchar_t *__restrict __src) __THROW; |
486 | |
487 | /* Copy no more than N characters of SRC to DEST, returning the address of |
488 | the last character written into DEST. */ |
489 | extern wchar_t *wcpncpy (wchar_t *__restrict __dest, |
490 | const wchar_t *__restrict __src, size_t __n) |
491 | __THROW; |
492 | #endif |
493 | |
494 | |
495 | /* Wide character I/O functions. */ |
496 | |
497 | #if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2) |
498 | /* Like OPEN_MEMSTREAM, but the stream is wide oriented and produces |
499 | a wide character string. */ |
500 | extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc) __THROW; |
501 | #endif |
502 | |
503 | #if defined __USE_ISOC95 || defined __USE_UNIX98 |
504 | |
505 | /* Select orientation for stream. */ |
506 | extern int fwide (__FILE *__fp, int __mode) __THROW; |
507 | |
508 | |
509 | /* Write formatted output to STREAM. |
510 | |
511 | This function is a possible cancellation point and therefore not |
512 | marked with __THROW. */ |
513 | extern int fwprintf (__FILE *__restrict __stream, |
514 | const wchar_t *__restrict __format, ...) |
515 | /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */; |
516 | /* Write formatted output to stdout. |
517 | |
518 | This function is a possible cancellation point and therefore not |
519 | marked with __THROW. */ |
520 | extern int wprintf (const wchar_t *__restrict __format, ...) |
521 | /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */; |
522 | /* Write formatted output of at most N characters to S. */ |
523 | extern int swprintf (wchar_t *__restrict __s, size_t __n, |
524 | const wchar_t *__restrict __format, ...) |
525 | __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */; |
526 | |
527 | /* Write formatted output to S from argument list ARG. |
528 | |
529 | This function is a possible cancellation point and therefore not |
530 | marked with __THROW. */ |
531 | extern int vfwprintf (__FILE *__restrict __s, |
532 | const wchar_t *__restrict __format, |
533 | __gnuc_va_list __arg) |
534 | /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */; |
535 | /* Write formatted output to stdout from argument list ARG. |
536 | |
537 | This function is a possible cancellation point and therefore not |
538 | marked with __THROW. */ |
539 | extern int vwprintf (const wchar_t *__restrict __format, |
540 | __gnuc_va_list __arg) |
541 | /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */; |
542 | /* Write formatted output of at most N character to S from argument |
543 | list ARG. */ |
544 | extern int vswprintf (wchar_t *__restrict __s, size_t __n, |
545 | const wchar_t *__restrict __format, |
546 | __gnuc_va_list __arg) |
547 | __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */; |
548 | |
549 | |
550 | /* Read formatted input from STREAM. |
551 | |
552 | This function is a possible cancellation point and therefore not |
553 | marked with __THROW. */ |
554 | extern int fwscanf (__FILE *__restrict __stream, |
555 | const wchar_t *__restrict __format, ...) |
556 | /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; |
557 | /* Read formatted input from stdin. |
558 | |
559 | This function is a possible cancellation point and therefore not |
560 | marked with __THROW. */ |
561 | extern int wscanf (const wchar_t *__restrict __format, ...) |
562 | /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */; |
563 | /* Read formatted input from S. */ |
564 | extern int swscanf (const wchar_t *__restrict __s, |
565 | const wchar_t *__restrict __format, ...) |
566 | __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; |
567 | |
568 | # if defined __USE_ISOC99 && !defined __USE_GNU \ |
569 | && (!defined __LDBL_COMPAT || !defined __REDIRECT) \ |
570 | && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) |
571 | # ifdef __REDIRECT |
572 | /* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[ |
573 | GNU extension which conflicts with valid %a followed by letter |
574 | s, S or [. */ |
575 | extern int __REDIRECT (fwscanf, (__FILE *__restrict __stream, |
576 | const wchar_t *__restrict __format, ...), |
577 | __isoc99_fwscanf) |
578 | /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; |
579 | extern int __REDIRECT (wscanf, (const wchar_t *__restrict __format, ...), |
580 | __isoc99_wscanf) |
581 | /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */; |
582 | extern int __REDIRECT_NTH (swscanf, (const wchar_t *__restrict __s, |
583 | const wchar_t *__restrict __format, |
584 | ...), __isoc99_swscanf) |
585 | /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; |
586 | # else |
587 | extern int __isoc99_fwscanf (__FILE *__restrict __stream, |
588 | const wchar_t *__restrict __format, ...); |
589 | extern int __isoc99_wscanf (const wchar_t *__restrict __format, ...); |
590 | extern int __isoc99_swscanf (const wchar_t *__restrict __s, |
591 | const wchar_t *__restrict __format, ...) |
592 | __THROW; |
593 | # define fwscanf __isoc99_fwscanf |
594 | # define wscanf __isoc99_wscanf |
595 | # define swscanf __isoc99_swscanf |
596 | # endif |
597 | # endif |
598 | |
599 | #endif /* Use ISO C95, C99 and Unix98. */ |
600 | |
601 | #ifdef __USE_ISOC99 |
602 | /* Read formatted input from S into argument list ARG. |
603 | |
604 | This function is a possible cancellation point and therefore not |
605 | marked with __THROW. */ |
606 | extern int vfwscanf (__FILE *__restrict __s, |
607 | const wchar_t *__restrict __format, |
608 | __gnuc_va_list __arg) |
609 | /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; |
610 | /* Read formatted input from stdin into argument list ARG. |
611 | |
612 | This function is a possible cancellation point and therefore not |
613 | marked with __THROW. */ |
614 | extern int vwscanf (const wchar_t *__restrict __format, |
615 | __gnuc_va_list __arg) |
616 | /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */; |
617 | /* Read formatted input from S into argument list ARG. */ |
618 | extern int vswscanf (const wchar_t *__restrict __s, |
619 | const wchar_t *__restrict __format, |
620 | __gnuc_va_list __arg) |
621 | __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; |
622 | |
623 | # if !defined __USE_GNU \ |
624 | && (!defined __LDBL_COMPAT || !defined __REDIRECT) \ |
625 | && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) |
626 | # ifdef __REDIRECT |
627 | extern int __REDIRECT (vfwscanf, (__FILE *__restrict __s, |
628 | const wchar_t *__restrict __format, |
629 | __gnuc_va_list __arg), __isoc99_vfwscanf) |
630 | /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; |
631 | extern int __REDIRECT (vwscanf, (const wchar_t *__restrict __format, |
632 | __gnuc_va_list __arg), __isoc99_vwscanf) |
633 | /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */; |
634 | extern int __REDIRECT_NTH (vswscanf, (const wchar_t *__restrict __s, |
635 | const wchar_t *__restrict __format, |
636 | __gnuc_va_list __arg), __isoc99_vswscanf) |
637 | /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; |
638 | # else |
639 | extern int __isoc99_vfwscanf (__FILE *__restrict __s, |
640 | const wchar_t *__restrict __format, |
641 | __gnuc_va_list __arg); |
642 | extern int __isoc99_vwscanf (const wchar_t *__restrict __format, |
643 | __gnuc_va_list __arg); |
644 | extern int __isoc99_vswscanf (const wchar_t *__restrict __s, |
645 | const wchar_t *__restrict __format, |
646 | __gnuc_va_list __arg) __THROW; |
647 | # define vfwscanf __isoc99_vfwscanf |
648 | # define vwscanf __isoc99_vwscanf |
649 | # define vswscanf __isoc99_vswscanf |
650 | # endif |
651 | # endif |
652 | |
653 | #endif /* Use ISO C99. */ |
654 | |
655 | |
656 | /* Read a character from STREAM. |
657 | |
658 | These functions are possible cancellation points and therefore not |
659 | marked with __THROW. */ |
660 | extern wint_t fgetwc (__FILE *__stream); |
661 | extern wint_t getwc (__FILE *__stream); |
662 | |
663 | /* Read a character from stdin. |
664 | |
665 | This function is a possible cancellation point and therefore not |
666 | marked with __THROW. */ |
667 | extern wint_t getwchar (void); |
668 | |
669 | |
670 | /* Write a character to STREAM. |
671 | |
672 | These functions are possible cancellation points and therefore not |
673 | marked with __THROW. */ |
674 | extern wint_t fputwc (wchar_t __wc, __FILE *__stream); |
675 | extern wint_t putwc (wchar_t __wc, __FILE *__stream); |
676 | |
677 | /* Write a character to stdout. |
678 | |
679 | This function is a possible cancellation point and therefore not |
680 | marked with __THROW. */ |
681 | extern wint_t putwchar (wchar_t __wc); |
682 | |
683 | |
684 | /* Get a newline-terminated wide character string of finite length |
685 | from STREAM. |
686 | |
687 | This function is a possible cancellation point and therefore not |
688 | marked with __THROW. */ |
689 | extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n, |
690 | __FILE *__restrict __stream); |
691 | |
692 | /* Write a string to STREAM. |
693 | |
694 | This function is a possible cancellation point and therefore not |
695 | marked with __THROW. */ |
696 | extern int fputws (const wchar_t *__restrict __ws, |
697 | __FILE *__restrict __stream); |
698 | |
699 | |
700 | /* Push a character back onto the input buffer of STREAM. |
701 | |
702 | This function is a possible cancellation point and therefore not |
703 | marked with __THROW. */ |
704 | extern wint_t ungetwc (wint_t __wc, __FILE *__stream); |
705 | |
706 | |
707 | #ifdef __USE_GNU |
708 | /* These are defined to be equivalent to the `char' functions defined |
709 | in POSIX.1:1996. |
710 | |
711 | These functions are not part of POSIX and therefore no official |
712 | cancellation point. But due to similarity with an POSIX interface |
713 | or due to the implementation they are cancellation points and |
714 | therefore not marked with __THROW. */ |
715 | extern wint_t getwc_unlocked (__FILE *__stream); |
716 | extern wint_t getwchar_unlocked (void); |
717 | |
718 | /* This is the wide character version of a GNU extension. |
719 | |
720 | This function is not part of POSIX and therefore no official |
721 | cancellation point. But due to similarity with an POSIX interface |
722 | or due to the implementation it is a cancellation point and |
723 | therefore not marked with __THROW. */ |
724 | extern wint_t fgetwc_unlocked (__FILE *__stream); |
725 | |
726 | /* Faster version when locking is not necessary. |
727 | |
728 | This function is not part of POSIX and therefore no official |
729 | cancellation point. But due to similarity with an POSIX interface |
730 | or due to the implementation it is a cancellation point and |
731 | therefore not marked with __THROW. */ |
732 | extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream); |
733 | |
734 | /* These are defined to be equivalent to the `char' functions defined |
735 | in POSIX.1:1996. |
736 | |
737 | These functions are not part of POSIX and therefore no official |
738 | cancellation point. But due to similarity with an POSIX interface |
739 | or due to the implementation they are cancellation points and |
740 | therefore not marked with __THROW. */ |
741 | extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream); |
742 | extern wint_t putwchar_unlocked (wchar_t __wc); |
743 | |
744 | |
745 | /* This function does the same as `fgetws' but does not lock the stream. |
746 | |
747 | This function is not part of POSIX and therefore no official |
748 | cancellation point. But due to similarity with an POSIX interface |
749 | or due to the implementation it is a cancellation point and |
750 | therefore not marked with __THROW. */ |
751 | extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n, |
752 | __FILE *__restrict __stream); |
753 | |
754 | /* This function does the same as `fputws' but does not lock the stream. |
755 | |
756 | This function is not part of POSIX and therefore no official |
757 | cancellation point. But due to similarity with an POSIX interface |
758 | or due to the implementation it is a cancellation point and |
759 | therefore not marked with __THROW. */ |
760 | extern int fputws_unlocked (const wchar_t *__restrict __ws, |
761 | __FILE *__restrict __stream); |
762 | #endif |
763 | |
764 | |
765 | /* Format TP into S according to FORMAT. |
766 | Write no more than MAXSIZE wide characters and return the number |
767 | of wide characters written, or 0 if it would exceed MAXSIZE. */ |
768 | extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize, |
769 | const wchar_t *__restrict __format, |
770 | const struct tm *__restrict __tp) __THROW; |
771 | |
772 | # ifdef __USE_GNU |
773 | /* Similar to `wcsftime' but takes the information from |
774 | the provided locale and not the global locale. */ |
775 | extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize, |
776 | const wchar_t *__restrict __format, |
777 | const struct tm *__restrict __tp, |
778 | locale_t __loc) __THROW; |
779 | # endif |
780 | |
781 | /* Define some macros helping to catch buffer overflows. */ |
782 | #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function |
783 | # include <bits/wchar2.h> |
784 | #endif |
785 | |
786 | #ifdef __LDBL_COMPAT |
787 | # include <bits/wchar-ldbl.h> |
788 | #endif |
789 | |
790 | __END_DECLS |
791 | |
792 | #endif /* wchar.h */ |
793 | |