release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/wchar.h

   1 /* Copyright (C) 1995-2002, 2003 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /*
  20  *      ISO C99 Standard: 7.24
  21  *      Extended multibyte and wide character utilities <wchar.h>
  22  */
  23
  24 #ifndef _WCHAR_H
  25
  26 #ifndef __need_mbstate_t
  27 # define _WCHAR_H 1
  28 # include <features.h>
  29 #endif
  30
  31 #ifndef __UCLIBC_HAS_WCHAR__
  32 #error Attempted to include wchar.h when uClibc built without wide char support.
  33 #endif
  34
  35 #ifdef _WCHAR_H
  36 /* Get FILE definition.  */
  37 # define __need___FILE
  38 # ifdef __USE_UNIX98
  39 #  define __need_FILE
  40 # endif
  41 # include <stdio.h>
  42 /* Get va_list definition.  */
  43 # define __need___va_list
  44 # include <stdarg.h>
  45
  46 /* Get size_t, wchar_t, wint_t and NULL from <stddef.h>.  */
  47 # define __need_size_t
  48 # define __need_wchar_t
  49 # define __need_NULL
  50 #endif
  51 #define __need_wint_t
  52 #include <stddef.h>
  53
  54 #include <bits/wchar.h>
  55
  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.  */
  58 #ifndef _WINT_T
  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.  */
  63 # define _WINT_T
  64 typedef unsigned int wint_t;
  65 #else
  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__
  70 __BEGIN_NAMESPACE_STD
  71 typedef __WINT_TYPE__ wint_t;
  72 __END_NAMESPACE_STD
  73 # endif
  74 #endif
  75
  76
  77 #ifndef __mbstate_t_defined
  78 # define __mbstate_t_defined    1
  79 /* Conversion state information.  */
  80 #if 1
  81 typedef struct
  82 {
  83         wchar_t __mask;
  84         wchar_t __wc;
  85 } __mbstate_t;
  86 #else
  87 typedef struct
  88 {
  89   int __count;
  90   union
  91   {
  92     wint_t __wch;
  93     char __wchb[4];
  94   } __value;            /* Value so far.  */
  95 } __mbstate_t;
  96 #endif
  97 #endif
  98 #undef __need_mbstate_t
  99
 100
 101 /* The rest of the file is only used if used if __need_mbstate_t is not
 102    defined.  */
 103 #ifdef _WCHAR_H
 104
 105 __BEGIN_NAMESPACE_C99
 106 /* Public type.  */
 107 typedef __mbstate_t mbstate_t;
 108 __END_NAMESPACE_C99
 109 #ifdef __USE_GNU
 110 __USING_NAMESPACE_C99(mbstate_t)
 111 #endif
 112
 113 #ifndef WCHAR_MIN
 114 /* These constants might also be defined in <inttypes.h>.  */
 115 # define WCHAR_MIN __WCHAR_MIN
 116 # define WCHAR_MAX __WCHAR_MAX
 117 #endif
 118
 119 #ifndef WEOF
 120 # define WEOF (0xffffffffu)
 121 #endif
 122
 123 /* For XPG4 compliance we have to define the stuff from <wctype.h> here
 124    as well.  */
 125 #if defined __USE_XOPEN && !defined __USE_UNIX98
 126 # include <wctype.h>
 127 #endif
 128
 129
 130 __BEGIN_DECLS
 131
 132 __BEGIN_NAMESPACE_STD
 133 /* This incomplete type is defined in <time.h> but needed here because
 134    of `wcsftime'.  */
 135 struct tm;
 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)
 140 __END_NAMESPACE_STD
 141
 142
 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)
 150      __THROW;
 151
 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)
 158      __THROW;
 159
 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__;
 166 __END_NAMESPACE_C99
 167
 168 #ifdef __USE_GNU
 169 /* Compare S1 and S2, ignoring case.  */
 170 extern int wcscasecmp (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
 171
 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,
 174                         size_t __n) __THROW;
 175
 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>
 180
 181 extern int wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
 182                          __locale_t __loc) __THROW;
 183
 184 extern int wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
 185                           size_t __n, __locale_t __loc) __THROW;
 186 #endif /* __UCLIBC_HAS_XLOCALE__ */
 187 #endif
 188
 189 __BEGIN_NAMESPACE_C99
 190 /* Compare S1 and S2, both interpreted as appropriate to the
 191    LC_COLLATE category of the current locale.  */
 192 extern int wcscoll (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
 193 /* Transform S2 into array pointed to by S1 such that if wcscmp is
 194    applied to two transformed strings the result is the as applying
 195    `wcscoll' to the original strings.  */
 196 extern size_t wcsxfrm (wchar_t *__restrict __s1,
 197                        __const wchar_t *__restrict __s2, size_t __n) __THROW;
 198 __END_NAMESPACE_C99
 199
 200 #ifdef __USE_GNU
 201 #ifdef __UCLIBC_HAS_XLOCALE__
 202 /* Similar to the two functions above but take the information from
 203    the provided locale and not the global locale.  */
 204
 205 /* Compare S1 and S2, both interpreted as appropriate to the
 206    LC_COLLATE category of the given locale.  */
 207 extern int wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2,
 208                       __locale_t __loc) __THROW;
 209
 210 /* Transform S2 into array pointed to by S1 such that if wcscmp is
 211    applied to two transformed strings the result is the as applying
 212    `wcscoll' to the original strings.  */
 213 extern size_t wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2,
 214                          size_t __n, __locale_t __loc) __THROW;
 215
 216 #endif /* __UCLIBC_HAS_XLOCALE__ */
 217
 218 /* Duplicate S, returning an identical malloc'd string.  */
 219 extern wchar_t *wcsdup (__const wchar_t *__s) __THROW __attribute_malloc__;
 220 #endif
 221
 222 __BEGIN_NAMESPACE_C99
 223 /* Find the first occurrence of WC in WCS.  */
 224 extern wchar_t *wcschr (__const wchar_t *__wcs, wchar_t __wc)
 225      __THROW __attribute_pure__;
 226 /* Find the last occurrence of WC in WCS.  */
 227 extern wchar_t *wcsrchr (__const wchar_t *__wcs, wchar_t __wc)
 228      __THROW __attribute_pure__;
 229 __END_NAMESPACE_C99
 230
 231 #ifdef __USE_GNU
 232 /* This function is similar to `wcschr'.  But it returns a pointer to
 233    the closing NUL wide character in case C is not found in S.  */
 234 extern wchar_t *wcschrnul (__const wchar_t *__s, wchar_t __wc)
 235      __THROW __attribute_pure__;
 236 #endif
 237
 238 __BEGIN_NAMESPACE_C99
 239 /* Return the length of the initial segmet of WCS which
 240    consists entirely of wide characters not in REJECT.  */
 241 extern size_t wcscspn (__const wchar_t *__wcs, __const wchar_t *__reject)
 242      __THROW __attribute_pure__;
 243 /* Return the length of the initial segmet of WCS which
 244    consists entirely of wide characters in  ACCEPT.  */
 245 extern size_t wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept)
 246      __THROW __attribute_pure__;
 247 /* Find the first occurrence in WCS of any character in ACCEPT.  */
 248 extern wchar_t *wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept)
 249      __THROW __attribute_pure__;
 250 /* Find the first occurrence of NEEDLE in HAYSTACK.  */
 251 extern wchar_t *wcsstr (__const wchar_t *__haystack, __const wchar_t *__needle)
 252      __THROW __attribute_pure__;
 253
 254 /* Divide WCS into tokens separated by characters in DELIM.  */
 255 extern wchar_t *wcstok (wchar_t *__restrict __s,
 256                         __const wchar_t *__restrict __delim,
 257                         wchar_t **__restrict __ptr) __THROW;
 258
 259 /* Return the number of wide characters in S.  */
 260 extern size_t wcslen (__const wchar_t *__s) __THROW __attribute_pure__;
 261 __END_NAMESPACE_C99
 262
 263 #if defined __USE_XOPEN && defined __UCLIBC_SUSV3_LEGACY__
 264 /* Another name for `wcsstr' from XPG4.  */
 265 extern wchar_t *wcswcs (__const wchar_t *__haystack, __const wchar_t *__needle)
 266      __THROW __attribute_pure__;
 267 #endif
 268
 269 #ifdef __USE_GNU
 270 /* Return the number of wide characters in S, but at most MAXLEN.  */
 271 extern size_t wcsnlen (__const wchar_t *__s, size_t __maxlen)
 272      __THROW __attribute_pure__;
 273 #endif
 274
 275
 276 __BEGIN_NAMESPACE_C99
 277 /* Search N wide characters of S for C.  */
 278 extern wchar_t *wmemchr (__const wchar_t *__s, wchar_t __c, size_t __n)
 279      __THROW __attribute_pure__;
 280
 281 /* Compare N wide characters of S1 and S2.  */
 282 extern int wmemcmp (__const wchar_t *__restrict __s1,
 283                     __const wchar_t *__restrict __s2, size_t __n)
 284      __THROW __attribute_pure__;
 285
 286 /* Copy N wide characters of SRC to DEST.  */
 287 extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
 288                          __const wchar_t *__restrict __s2, size_t __n) __THROW;
 289
 290 /* Copy N wide characters of SRC to DEST, guaranteeing
 291    correct behavior for overlapping strings.  */
 292 extern wchar_t *wmemmove (wchar_t *__s1, __const wchar_t *__s2, size_t __n)
 293      __THROW;
 294
 295 /* Set N wide characters of S to C.  */
 296 extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
 297 __END_NAMESPACE_C99
 298
 299 #ifdef __USE_GNU
 300 /* Copy N wide characters of SRC to DEST and return pointer to following
 301    wide character.  */
 302 extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
 303                           __const wchar_t *__restrict __s2, size_t __n)
 304      __THROW;
 305 #endif
 306
 307
 308 __BEGIN_NAMESPACE_C99
 309 /* Determine whether C constitutes a valid (one-byte) multibyte
 310    character.  */
 311 extern wint_t btowc (int __c) __THROW;
 312
 313 /* Determine whether C corresponds to a member of the extended
 314    character set whose multibyte representation is a single byte.  */
 315 extern int wctob (wint_t __c) __THROW;
 316
 317 /* Determine whether PS points to an object representing the initial
 318    state.  */
 319 extern int mbsinit (__const mbstate_t *__ps) __THROW __attribute_pure__;
 320
 321 /* Write wide character representation of multibyte character pointed
 322    to by S to PWC.  */
 323 extern size_t mbrtowc (wchar_t *__restrict __pwc,
 324                        __const char *__restrict __s, size_t __n,
 325                        mbstate_t *__p) __THROW;
 326
 327 /* Write multibyte representation of wide character WC to S.  */
 328 extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
 329                        mbstate_t *__restrict __ps) __THROW;
 330
 331 /* Return number of bytes in multibyte character pointed to by S.  */
 332 #if 0 /* uClibc: disabled */
 333 extern size_t __mbrlen (__const char *__restrict __s, size_t __n,
 334                         mbstate_t *__restrict __ps) __THROW;
 335 #endif
 336 extern size_t mbrlen (__const char *__restrict __s, size_t __n,
 337                       mbstate_t *__restrict __ps) __THROW;
 338
 339 /* Write wide character representation of multibyte character string
 340    SRC to DST.  */
 341 extern size_t mbsrtowcs (wchar_t *__restrict __dst,
 342                          __const char **__restrict __src, size_t __len,
 343                          mbstate_t *__restrict __ps) __THROW;
 344
 345 /* Write multibyte character representation of wide character string
 346    SRC to DST.  */
 347 extern size_t wcsrtombs (char *__restrict __dst,
 348                          __const wchar_t **__restrict __src, size_t __len,
 349                          mbstate_t *__restrict __ps) __THROW;
 350 __END_NAMESPACE_C99
 351
 352
 353 #ifdef  __USE_GNU
 354 /* Write wide character representation of at most NMC bytes of the
 355    multibyte character string SRC to DST.  */
 356 extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
 357                           __const char **__restrict __src, size_t __nmc,
 358                           size_t __len, mbstate_t *__restrict __ps) __THROW;
 359
 360 /* Write multibyte character representation of at most NWC characters
 361    from the wide character string SRC to DST.  */
 362 extern size_t wcsnrtombs (char *__restrict __dst,
 363                           __const wchar_t **__restrict __src,
 364                           size_t __nwc, size_t __len,
 365                           mbstate_t *__restrict __ps) __THROW;
 366 #endif  /* use GNU */
 367
 368
 369 /* The following functions are extensions found in X/Open CAE.  */
 370 #ifdef __USE_XOPEN
 371 /* Determine number of column positions required for C.  */
 372 extern int wcwidth (wchar_t __c) __THROW;
 373
 374 /* Determine number of column positions required for first N wide
 375    characters (or fewer if S ends before this) in S.  */
 376 extern int wcswidth (__const wchar_t *__s, size_t __n) __THROW;
 377 #endif  /* Use X/Open.  */
 378
 379
 380 __BEGIN_NAMESPACE_C99
 381 #ifdef __UCLIBC_HAS_FLOATS__
 382 /* Convert initial portion of the wide string NPTR to `double'
 383    representation.  */
 384 extern double wcstod (__const wchar_t *__restrict __nptr,
 385                       wchar_t **__restrict __endptr) __THROW;
 386
 387 #ifdef __USE_ISOC99
 388 /* Likewise for `float' and `long double' sizes of floating-point numbers.  */
 389 extern float wcstof (__const wchar_t *__restrict __nptr,
 390                      wchar_t **__restrict __endptr) __THROW;
 391 extern long double wcstold (__const wchar_t *__restrict __nptr,
 392                             wchar_t **__restrict __endptr) __THROW;
 393 #endif /* C99 */
 394 #endif /* __UCLIBC_HAS_FLOATS__ */
 395
 396
 397 /* Convert initial portion of wide string NPTR to `long int'
 398    representation.  */
 399 extern long int wcstol (__const wchar_t *__restrict __nptr,
 400                         wchar_t **__restrict __endptr, int __base) __THROW;
 401
 402 /* Convert initial portion of wide string NPTR to `unsigned long int'
 403    representation.  */
 404 extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr,
 405                                   wchar_t **__restrict __endptr, int __base)
 406      __THROW;
 407
 408 #if defined __USE_ISOC99 || (defined __GNUC__ && defined __USE_GNU)
 409 /* Convert initial portion of wide string NPTR to `long int'
 410    representation.  */
 411 __extension__
 412 extern long long int wcstoll (__const wchar_t *__restrict __nptr,
 413                               wchar_t **__restrict __endptr, int __base)
 414      __THROW;
 415
 416 /* Convert initial portion of wide string NPTR to `unsigned long long int'
 417    representation.  */
 418 __extension__
 419 extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr,
 420                                         wchar_t **__restrict __endptr,
 421                                         int __base) __THROW;
 422 #endif /* ISO C99 or GCC and GNU.  */
 423 __END_NAMESPACE_C99
 424
 425 #if defined __GNUC__ && defined __USE_GNU
 426 /* Convert initial portion of wide string NPTR to `long int'
 427    representation.  */
 428 __extension__
 429 extern long long int wcstoq (__const wchar_t *__restrict __nptr,
 430                              wchar_t **__restrict __endptr, int __base)
 431      __THROW;
 432
 433 /* Convert initial portion of wide string NPTR to `unsigned long long int'
 434    representation.  */
 435 __extension__
 436 extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr,
 437                                        wchar_t **__restrict __endptr,
 438                                        int __base) __THROW;
 439 #endif /* GCC and use GNU.  */
 440
 441 #ifdef __USE_GNU
 442 #ifdef __UCLIBC_HAS_XLOCALE__
 443 /* The concept of one static locale per category is not very well
 444    thought out.  Many applications will need to process its data using
 445    information from several different locales.  Another application is
 446    the implementation of the internationalization handling in the
 447    upcoming ISO C++ standard library.  To support this another set of
 448    the functions using locale data exist which have an additional
 449    argument.
 450
 451    Attention: all these functions are *not* standardized in any form.
 452    This is a proof-of-concept implementation.  */
 453
 454 /* Structure for reentrant locale using functions.  This is an
 455    (almost) opaque type for the user level programs.  */
 456 # include <xlocale.h>
 457
 458 /* Special versions of the functions above which take the locale to
 459    use as an additional parameter.  */
 460 extern long int wcstol_l (__const wchar_t *__restrict __nptr,
 461                           wchar_t **__restrict __endptr, int __base,
 462                           __locale_t __loc) __THROW;
 463
 464 extern unsigned long int wcstoul_l (__const wchar_t *__restrict __nptr,
 465                                     wchar_t **__restrict __endptr,
 466                                     int __base, __locale_t __loc) __THROW;
 467
 468 __extension__
 469 extern long long int wcstoll_l (__const wchar_t *__restrict __nptr,
 470                                 wchar_t **__restrict __endptr,
 471                                 int __base, __locale_t __loc) __THROW;
 472
 473 __extension__
 474 extern unsigned long long int wcstoull_l (__const wchar_t *__restrict __nptr,
 475                                           wchar_t **__restrict __endptr,
 476                                           int __base, __locale_t __loc)
 477      __THROW;
 478
 479 #ifdef __UCLIBC_HAS_FLOATS__
 480 extern double wcstod_l (__const wchar_t *__restrict __nptr,
 481                         wchar_t **__restrict __endptr, __locale_t __loc)
 482      __THROW;
 483
 484 extern float wcstof_l (__const wchar_t *__restrict __nptr,
 485                        wchar_t **__restrict __endptr, __locale_t __loc)
 486      __THROW;
 487
 488 extern long double wcstold_l (__const wchar_t *__restrict __nptr,
 489                               wchar_t **__restrict __endptr,
 490                               __locale_t __loc) __THROW;
 491 #endif /* __UCLIBC_HAS_FLOATS__ */
 492 #endif /* __UCLIBC_HAS_XLOCALE__ */
 493 #endif /* GNU */
 494
 495
 496 #ifdef  __USE_GNU
 497 /* Copy SRC to DEST, returning the address of the terminating L'\0' in
 498    DEST.  */
 499 extern wchar_t *wcpcpy (wchar_t *__dest, __const wchar_t *__src) __THROW;
 500
 501 /* Copy no more than N characters of SRC to DEST, returning the address of
 502    the last character written into DEST.  */
 503 extern wchar_t *wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
 504      __THROW;
 505 #endif  /* use GNU */
 506
 507
 508 /* Wide character I/O functions.  */
 509 #if defined __USE_ISOC99 || defined __USE_UNIX98
 510 __BEGIN_NAMESPACE_C99
 511
 512 /* Select orientation for stream.  */
 513 extern int fwide (__FILE *__fp, int __mode) __THROW;
 514
 515
 516 /* Write formatted output to STREAM.
 517
 518    This function is a possible cancellation point and therefore not
 519    marked with __THROW.  */
 520 extern int fwprintf (__FILE *__restrict __stream,
 521                      __const wchar_t *__restrict __format, ...)
 522      /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
 523 /* Write formatted output to stdout.
 524
 525    This function is a possible cancellation point and therefore not
 526    marked with __THROW.  */
 527 extern int wprintf (__const wchar_t *__restrict __format, ...)
 528      /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
 529 /* Write formatted output of at most N characters to S.  */
 530 extern int swprintf (wchar_t *__restrict __s, size_t __n,
 531                      __const wchar_t *__restrict __format, ...)
 532      __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
 533
 534 /* Write formatted output to S from argument list ARG.
 535
 536    This function is a possible cancellation point and therefore not
 537    marked with __THROW.  */
 538 extern int vfwprintf (__FILE *__restrict __s,
 539                       __const wchar_t *__restrict __format,
 540                       __gnuc_va_list __arg)
 541      /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
 542 /* Write formatted output to stdout from argument list ARG.
 543
 544    This function is a possible cancellation point and therefore not
 545    marked with __THROW.  */
 546 extern int vwprintf (__const wchar_t *__restrict __format,
 547                      __gnuc_va_list __arg)
 548      /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
 549 /* Write formatted output of at most N character to S from argument
 550    list ARG.  */
 551 extern int vswprintf (wchar_t *__restrict __s, size_t __n,
 552                       __const wchar_t *__restrict __format,
 553                       __gnuc_va_list __arg)
 554      __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
 555
 556
 557 /* Read formatted input from STREAM.
 558
 559    This function is a possible cancellation point and therefore not
 560    marked with __THROW.  */
 561 extern int fwscanf (__FILE *__restrict __stream,
 562                     __const wchar_t *__restrict __format, ...)
 563      /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
 564 /* Read formatted input from stdin.
 565
 566    This function is a possible cancellation point and therefore not
 567    marked with __THROW.  */
 568 extern int wscanf (__const wchar_t *__restrict __format, ...)
 569      /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
 570 /* Read formatted input from S.  */
 571 extern int swscanf (__const wchar_t *__restrict __s,
 572                     __const wchar_t *__restrict __format, ...)
 573      __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
 574
 575 __END_NAMESPACE_C99
 576 #endif /* Use ISO C99 and Unix98. */
 577
 578 #ifdef __USE_ISOC99
 579 __BEGIN_NAMESPACE_C99
 580
 581 /* Read formatted input from S into argument list ARG.
 582
 583    This function is a possible cancellation point and therefore not
 584    marked with __THROW.  */
 585 extern int vfwscanf (__FILE *__restrict __s,
 586                      __const wchar_t *__restrict __format,
 587                      __gnuc_va_list __arg)
 588      /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
 589 /* Read formatted input from stdin into argument list ARG.
 590
 591    This function is a possible cancellation point and therefore not
 592    marked with __THROW.  */
 593 extern int vwscanf (__const wchar_t *__restrict __format,
 594                     __gnuc_va_list __arg)
 595      /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
 596 /* Read formatted input from S into argument list ARG.  */
 597 extern int vswscanf (__const wchar_t *__restrict __s,
 598                      __const wchar_t *__restrict __format,
 599                      __gnuc_va_list __arg)
 600      __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
 601
 602 __END_NAMESPACE_C99
 603 #endif /* Use ISO C99. */
 604
 605
 606 __BEGIN_NAMESPACE_C99
 607 /* Read a character from STREAM.
 608
 609    These functions are possible cancellation points and therefore not
 610    marked with __THROW.  */
 611 extern wint_t fgetwc (__FILE *__stream);
 612 extern wint_t getwc (__FILE *__stream);
 613
 614 /* Read a character from stdin.
 615
 616    This function is a possible cancellation point and therefore not
 617    marked with __THROW.  */
 618 extern wint_t getwchar (void);
 619
 620
 621 /* Write a character to STREAM.
 622
 623    These functions are possible cancellation points and therefore not
 624    marked with __THROW.  */
 625 extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
 626 extern wint_t putwc (wchar_t __wc, __FILE *__stream);
 627
 628 /* Write a character to stdout.
 629
 630    This function is a possible cancellation points and therefore not
 631    marked with __THROW.  */
 632 extern wint_t putwchar (wchar_t __wc);
 633
 634
 635 /* Get a newline-terminated wide character string of finite length
 636    from STREAM.
 637
 638    This function is a possible cancellation points and therefore not
 639    marked with __THROW.  */
 640 extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
 641                         __FILE *__restrict __stream);
 642
 643 /* Write a string to STREAM.
 644
 645    This function is a possible cancellation points and therefore not
 646    marked with __THROW.  */
 647 extern int fputws (__const wchar_t *__restrict __ws,
 648                    __FILE *__restrict __stream);
 649
 650
 651 /* Push a character back onto the input buffer of STREAM.
 652
 653    This function is a possible cancellation points and therefore not
 654    marked with __THROW.  */
 655 extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
 656 __END_NAMESPACE_C99
 657
 658
 659 #ifdef __USE_GNU
 660 /* These are defined to be equivalent to the `char' functions defined
 661    in POSIX.1:1996.
 662
 663    These functions are not part of POSIX and therefore no official
 664    cancellation point.  But due to similarity with an POSIX interface
 665    or due to the implementation they are cancellation points and
 666    therefore not marked with __THROW.  */
 667 extern wint_t getwc_unlocked (__FILE *__stream);
 668 extern wint_t getwchar_unlocked (void);
 669
 670 /* This is the wide character version of a GNU extension.
 671
 672    This function is not part of POSIX and therefore no official
 673    cancellation point.  But due to similarity with an POSIX interface
 674    or due to the implementation it is a cancellation point and
 675    therefore not marked with __THROW.  */
 676 extern wint_t fgetwc_unlocked (__FILE *__stream);
 677
 678 /* Faster version when locking is not necessary.
 679
 680    This function is not part of POSIX and therefore no official
 681    cancellation point.  But due to similarity with an POSIX interface
 682    or due to the implementation it is a cancellation point and
 683    therefore not marked with __THROW.  */
 684 extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
 685
 686 /* These are defined to be equivalent to the `char' functions defined
 687    in POSIX.1:1996.
 688
 689    These functions are not part of POSIX and therefore no official
 690    cancellation point.  But due to similarity with an POSIX interface
 691    or due to the implementation they are cancellation points and
 692    therefore not marked with __THROW.  */
 693 extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
 694 extern wint_t putwchar_unlocked (wchar_t __wc);
 695
 696
 697 /* This function does the same as `fgetws' but does not lock the stream.
 698
 699    This function is not part of POSIX and therefore no official
 700    cancellation point.  But due to similarity with an POSIX interface
 701    or due to the implementation it is a cancellation point and
 702    therefore not marked with __THROW.  */
 703 extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
 704                                  __FILE *__restrict __stream);
 705
 706 /* This function does the same as `fputws' but does not lock the stream.
 707
 708    This function is not part of POSIX and therefore no official
 709    cancellation point.  But due to similarity with an POSIX interface
 710    or due to the implementation it is a cancellation point and
 711    therefore not marked with __THROW.  */
 712 extern int fputws_unlocked (__const wchar_t *__restrict __ws,
 713                             __FILE *__restrict __stream);
 714 #endif
 715
 716
 717 __BEGIN_NAMESPACE_C99
 718 /* Format TP into S according to FORMAT.
 719    Write no more than MAXSIZE wide characters and return the number
 720    of wide characters written, or 0 if it would exceed MAXSIZE.  */
 721 extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
 722                         __const wchar_t *__restrict __format,
 723                         __const struct tm *__restrict __tp) __THROW;
 724 __END_NAMESPACE_C99
 725
 726 # if defined __USE_GNU && defined __UCLIBC_HAS_XLOCALE__
 727 # include <xlocale.h>
 728
 729 /* Similar to `wcsftime' but takes the information from
 730    the provided locale and not the global locale.  */
 731 extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
 732                           __const wchar_t *__restrict __format,
 733                           __const struct tm *__restrict __tp,
 734                           __locale_t __loc) __THROW;
 735 # endif
 736
 737 /* The X/Open standard demands that most of the functions defined in
 738    the <wctype.h> header must also appear here.  This is probably
 739    because some X/Open members wrote their implementation before the
 740    ISO C standard was published and introduced the better solution.
 741    We have to provide these definitions for compliance reasons but we
 742    do this nonsense only if really necessary.  */
 743 #if defined __USE_UNIX98 && !defined __USE_GNU
 744 # define __need_iswxxx
 745 # include <wctype.h>
 746 #endif
 747
 748
 749 __END_DECLS
 750
 751 #endif  /* _WCHAR_H defined */
 752
 753 #endif /* wchar.h  */