wchar.h
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上传日期:2009-04-28
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- /* Copyright (C) 1995-2002, 2003, 2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- /*
- * ISO C99 Standard: 7.24
- * Extended multibyte and wide character utilities <wchar.h>
- */
- #ifndef _WCHAR_H
- #ifndef __need_mbstate_t
- # define _WCHAR_H 1
- # include <features.h>
- #endif
- #ifdef _WCHAR_H
- /* Get FILE definition. */
- # define __need___FILE
- # ifdef __USE_UNIX98
- # define __need_FILE
- # endif
- # include <stdio.h>
- /* Get va_list definition. */
- # define __need___va_list
- # include <stdarg.h>
- /* Get size_t, wchar_t, wint_t and NULL from <stddef.h>. */
- # define __need_size_t
- # define __need_wchar_t
- # define __need_NULL
- #endif
- #define __need_wint_t
- #include <stddef.h>
- #include <bits/wchar.h>
- /* We try to get wint_t from <stddef.h>, but not all GCC versions define it
- there. So define it ourselves if it remains undefined. */
- #ifndef _WINT_T
- /* Integral type unchanged by default argument promotions that can
- hold any value corresponding to members of the extended character
- set, as well as at least one value that does not correspond to any
- member of the extended character set. */
- # define _WINT_T
- typedef unsigned int wint_t;
- #else
- /* Work around problems with the <stddef.h> file which doesn't put
- wint_t in the std namespace. */
- # if defined __cplusplus && defined _GLIBCPP_USE_NAMESPACES
- && defined __WINT_TYPE__
- __BEGIN_NAMESPACE_STD
- typedef __WINT_TYPE__ wint_t;
- __END_NAMESPACE_STD
- # endif
- #endif
- #ifndef __mbstate_t_defined
- # define __mbstate_t_defined 1
- /* Conversion state information. */
- typedef struct
- {
- int __count;
- union
- {
- wint_t __wch;
- char __wchb[4];
- } __value; /* Value so far. */
- } __mbstate_t;
- #endif
- #undef __need_mbstate_t
- /* The rest of the file is only used if used if __need_mbstate_t is not
- defined. */
- #ifdef _WCHAR_H
- __BEGIN_NAMESPACE_C99
- /* Public type. */
- typedef __mbstate_t mbstate_t;
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- __USING_NAMESPACE_C99(mbstate_t)
- #endif
- #ifndef WCHAR_MIN
- /* These constants might also be defined in <inttypes.h>. */
- # define WCHAR_MIN __WCHAR_MIN
- # define WCHAR_MAX __WCHAR_MAX
- #endif
- #ifndef WEOF
- # define WEOF (0xffffffffu)
- #endif
- /* For XPG4 compliance we have to define the stuff from <wctype.h> here
- as well. */
- #if defined __USE_XOPEN && !defined __USE_UNIX98
- # include <wctype.h>
- #endif
- __BEGIN_DECLS
- __BEGIN_NAMESPACE_STD
- /* This incomplete type is defined in <time.h> but needed here because
- of `wcsftime'. */
- struct tm;
- /* XXX We have to clean this up at some point. Since tm is in the std
- namespace but wcsftime is in __c99 the type wouldn't be found
- without inserting it in the global namespace. */
- __USING_NAMESPACE_STD(tm)
- __END_NAMESPACE_STD
- __BEGIN_NAMESPACE_C99
- /* Copy SRC to DEST. */
- extern wchar_t *wcscpy (wchar_t *__restrict __dest,
- __const wchar_t *__restrict __src) __THROW;
- /* Copy no more than N wide-characters of SRC to DEST. */
- extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
- __const wchar_t *__restrict __src, size_t __n)
- __THROW;
- /* Append SRC onto DEST. */
- extern wchar_t *wcscat (wchar_t *__restrict __dest,
- __const wchar_t *__restrict __src) __THROW;
- /* Append no more than N wide-characters of SRC onto DEST. */
- extern wchar_t *wcsncat (wchar_t *__restrict __dest,
- __const wchar_t *__restrict __src, size_t __n)
- __THROW;
- /* Compare S1 and S2. */
- extern int wcscmp (__const wchar_t *__s1, __const wchar_t *__s2)
- __THROW __attribute_pure__;
- /* Compare N wide-characters of S1 and S2. */
- extern int wcsncmp (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n)
- __THROW __attribute_pure__;
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- /* Compare S1 and S2, ignoring case. */
- extern int wcscasecmp (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
- /* Compare no more than N chars of S1 and S2, ignoring case. */
- extern int wcsncasecmp (__const wchar_t *__s1, __const wchar_t *__s2,
- size_t __n) __THROW;
- /* Similar to the two functions above but take the information from
- the provided locale and not the global locale. */
- # include <xlocale.h>
- extern int wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
- __locale_t __loc) __THROW;
- extern int wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
- size_t __n, __locale_t __loc) __THROW;
- #endif
- __BEGIN_NAMESPACE_C99
- /* Compare S1 and S2, both interpreted as appropriate to the
- LC_COLLATE category of the current locale. */
- extern int wcscoll (__const wchar_t *__s1, __const wchar_t *__s2) __THROW;
- /* Transform S2 into array pointed to by S1 such that if wcscmp is
- applied to two transformed strings the result is the as applying
- `wcscoll' to the original strings. */
- extern size_t wcsxfrm (wchar_t *__restrict __s1,
- __const wchar_t *__restrict __s2, size_t __n) __THROW;
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- /* Similar to the two functions above but take the information from
- the provided locale and not the global locale. */
- /* Compare S1 and S2, both interpreted as appropriate to the
- LC_COLLATE category of the given locale. */
- extern int wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2,
- __locale_t __loc) __THROW;
- /* Transform S2 into array pointed to by S1 such that if wcscmp is
- applied to two transformed strings the result is the as applying
- `wcscoll' to the original strings. */
- extern size_t wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2,
- size_t __n, __locale_t __loc) __THROW;
- /* Duplicate S, returning an identical malloc'd string. */
- extern wchar_t *wcsdup (__const wchar_t *__s) __THROW __attribute_malloc__;
- #endif
- __BEGIN_NAMESPACE_C99
- /* Find the first occurrence of WC in WCS. */
- extern wchar_t *wcschr (__const wchar_t *__wcs, wchar_t __wc)
- __THROW __attribute_pure__;
- /* Find the last occurrence of WC in WCS. */
- extern wchar_t *wcsrchr (__const wchar_t *__wcs, wchar_t __wc)
- __THROW __attribute_pure__;
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- /* This function is similar to `wcschr'. But it returns a pointer to
- the closing NUL wide character in case C is not found in S. */
- extern wchar_t *wcschrnul (__const wchar_t *__s, wchar_t __wc)
- __THROW __attribute_pure__;
- #endif
- __BEGIN_NAMESPACE_C99
- /* Return the length of the initial segmet of WCS which
- consists entirely of wide characters not in REJECT. */
- extern size_t wcscspn (__const wchar_t *__wcs, __const wchar_t *__reject)
- __THROW __attribute_pure__;
- /* Return the length of the initial segmet of WCS which
- consists entirely of wide characters in ACCEPT. */
- extern size_t wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept)
- __THROW __attribute_pure__;
- /* Find the first occurrence in WCS of any character in ACCEPT. */
- extern wchar_t *wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept)
- __THROW __attribute_pure__;
- /* Find the first occurrence of NEEDLE in HAYSTACK. */
- extern wchar_t *wcsstr (__const wchar_t *__haystack, __const wchar_t *__needle)
- __THROW __attribute_pure__;
- /* Divide WCS into tokens separated by characters in DELIM. */
- extern wchar_t *wcstok (wchar_t *__restrict __s,
- __const wchar_t *__restrict __delim,
- wchar_t **__restrict __ptr) __THROW;
- /* Return the number of wide characters in S. */
- extern size_t wcslen (__const wchar_t *__s) __THROW __attribute_pure__;
- __END_NAMESPACE_C99
- #ifdef __USE_XOPEN
- /* Another name for `wcsstr' from XPG4. */
- extern wchar_t *wcswcs (__const wchar_t *__haystack, __const wchar_t *__needle)
- __THROW __attribute_pure__;
- #endif
- #ifdef __USE_GNU
- /* Return the number of wide characters in S, but at most MAXLEN. */
- extern size_t wcsnlen (__const wchar_t *__s, size_t __maxlen)
- __THROW __attribute_pure__;
- #endif
- __BEGIN_NAMESPACE_C99
- /* Search N wide characters of S for C. */
- extern wchar_t *wmemchr (__const wchar_t *__s, wchar_t __c, size_t __n)
- __THROW __attribute_pure__;
- /* Compare N wide characters of S1 and S2. */
- extern int wmemcmp (__const wchar_t *__restrict __s1,
- __const wchar_t *__restrict __s2, size_t __n)
- __THROW __attribute_pure__;
- /* Copy N wide characters of SRC to DEST. */
- extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
- __const wchar_t *__restrict __s2, size_t __n) __THROW;
- /* Copy N wide characters of SRC to DEST, guaranteeing
- correct behavior for overlapping strings. */
- extern wchar_t *wmemmove (wchar_t *__s1, __const wchar_t *__s2, size_t __n)
- __THROW;
- /* Set N wide characters of S to C. */
- extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- /* Copy N wide characters of SRC to DEST and return pointer to following
- wide character. */
- extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
- __const wchar_t *__restrict __s2, size_t __n)
- __THROW;
- #endif
- __BEGIN_NAMESPACE_C99
- /* Determine whether C constitutes a valid (one-byte) multibyte
- character. */
- extern wint_t btowc (int __c) __THROW;
- /* Determine whether C corresponds to a member of the extended
- character set whose multibyte representation is a single byte. */
- extern int wctob (wint_t __c) __THROW;
- /* Determine whether PS points to an object representing the initial
- state. */
- extern int mbsinit (__const mbstate_t *__ps) __THROW __attribute_pure__;
- /* Write wide character representation of multibyte character pointed
- to by S to PWC. */
- extern size_t mbrtowc (wchar_t *__restrict __pwc,
- __const char *__restrict __s, size_t __n,
- mbstate_t *__p) __THROW;
- /* Write multibyte representation of wide character WC to S. */
- extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
- mbstate_t *__restrict __ps) __THROW;
- /* Return number of bytes in multibyte character pointed to by S. */
- extern size_t __mbrlen (__const char *__restrict __s, size_t __n,
- mbstate_t *__restrict __ps) __THROW;
- extern size_t mbrlen (__const char *__restrict __s, size_t __n,
- mbstate_t *__restrict __ps) __THROW;
- __END_NAMESPACE_C99
- #ifdef __USE_EXTERN_INLINES
- /* Define inline function as optimization. */
- extern __inline size_t
- __NTH (mbrlen (__const char *__restrict __s, size_t __n,
- mbstate_t *__restrict __ps))
- { return (__ps != NULL
- ? mbrtowc (NULL, __s, __n, __ps) : __mbrlen (__s, __n, NULL)); }
- #endif
- __BEGIN_NAMESPACE_C99
- /* Write wide character representation of multibyte character string
- SRC to DST. */
- extern size_t mbsrtowcs (wchar_t *__restrict __dst,
- __const char **__restrict __src, size_t __len,
- mbstate_t *__restrict __ps) __THROW;
- /* Write multibyte character representation of wide character string
- SRC to DST. */
- extern size_t wcsrtombs (char *__restrict __dst,
- __const wchar_t **__restrict __src, size_t __len,
- mbstate_t *__restrict __ps) __THROW;
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- /* Write wide character representation of at most NMC bytes of the
- multibyte character string SRC to DST. */
- extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
- __const char **__restrict __src, size_t __nmc,
- size_t __len, mbstate_t *__restrict __ps) __THROW;
- /* Write multibyte character representation of at most NWC characters
- from the wide character string SRC to DST. */
- extern size_t wcsnrtombs (char *__restrict __dst,
- __const wchar_t **__restrict __src,
- size_t __nwc, size_t __len,
- mbstate_t *__restrict __ps) __THROW;
- #endif /* use GNU */
- /* The following functions are extensions found in X/Open CAE. */
- #ifdef __USE_XOPEN
- /* Determine number of column positions required for C. */
- extern int wcwidth (wchar_t __c) __THROW;
- /* Determine number of column positions required for first N wide
- characters (or fewer if S ends before this) in S. */
- extern int wcswidth (__const wchar_t *__s, size_t __n) __THROW;
- #endif /* Use X/Open. */
- __BEGIN_NAMESPACE_C99
- /* Convert initial portion of the wide string NPTR to `double'
- representation. */
- extern double wcstod (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr) __THROW;
- #ifdef __USE_ISOC99
- /* Likewise for `float' and `long double' sizes of floating-point numbers. */
- extern float wcstof (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr) __THROW;
- extern long double wcstold (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr) __THROW;
- #endif /* C99 */
- /* Convert initial portion of wide string NPTR to `long int'
- representation. */
- extern long int wcstol (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base) __THROW;
- /* Convert initial portion of wide string NPTR to `unsigned long int'
- representation. */
- extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base)
- __THROW;
- #if defined __USE_ISOC99 || (defined __GNUC__ && defined __USE_GNU)
- /* Convert initial portion of wide string NPTR to `long int'
- representation. */
- __extension__
- extern long long int wcstoll (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base)
- __THROW;
- /* Convert initial portion of wide string NPTR to `unsigned long long int'
- representation. */
- __extension__
- extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base) __THROW;
- #endif /* ISO C99 or GCC and GNU. */
- __END_NAMESPACE_C99
- #if defined __GNUC__ && defined __USE_GNU
- /* Convert initial portion of wide string NPTR to `long int'
- representation. */
- __extension__
- extern long long int wcstoq (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base)
- __THROW;
- /* Convert initial portion of wide string NPTR to `unsigned long long int'
- representation. */
- __extension__
- extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base) __THROW;
- #endif /* GCC and use GNU. */
- #ifdef __USE_GNU
- /* The concept of one static locale per category is not very well
- thought out. Many applications will need to process its data using
- information from several different locales. Another application is
- the implementation of the internationalization handling in the
- upcoming ISO C++ standard library. To support this another set of
- the functions using locale data exist which have an additional
- argument.
- Attention: all these functions are *not* standardized in any form.
- This is a proof-of-concept implementation. */
- /* Structure for reentrant locale using functions. This is an
- (almost) opaque type for the user level programs. */
- # include <xlocale.h>
- /* Special versions of the functions above which take the locale to
- use as an additional parameter. */
- extern long int wcstol_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base,
- __locale_t __loc) __THROW;
- extern unsigned long int wcstoul_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base, __locale_t __loc) __THROW;
- __extension__
- extern long long int wcstoll_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base, __locale_t __loc) __THROW;
- __extension__
- extern unsigned long long int wcstoull_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base, __locale_t __loc)
- __THROW;
- extern double wcstod_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, __locale_t __loc)
- __THROW;
- extern float wcstof_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, __locale_t __loc)
- __THROW;
- extern long double wcstold_l (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- __locale_t __loc) __THROW;
- #endif /* GNU */
- /* The internal entry points for `wcstoX' take an extra flag argument
- saying whether or not to parse locale-dependent number grouping. */
- extern double __wcstod_internal (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __group)
- __THROW;
- extern float __wcstof_internal (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __group)
- __THROW;
- extern long double __wcstold_internal (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __group) __THROW;
- #ifndef __wcstol_internal_defined
- extern long int __wcstol_internal (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base, int __group) __THROW;
- # define __wcstol_internal_defined 1
- #endif
- #ifndef __wcstoul_internal_defined
- extern unsigned long int __wcstoul_internal (__const wchar_t *__restrict __npt,
- wchar_t **__restrict __endptr,
- int __base, int __group) __THROW;
- # define __wcstoul_internal_defined 1
- #endif
- #ifndef __wcstoll_internal_defined
- __extension__
- extern long long int __wcstoll_internal (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr,
- int __base, int __group) __THROW;
- # define __wcstoll_internal_defined 1
- #endif
- #ifndef __wcstoull_internal_defined
- __extension__
- extern unsigned long long int __wcstoull_internal (__const wchar_t *
- __restrict __nptr,
- wchar_t **
- __restrict __endptr,
- int __base,
- int __group) __THROW;
- # define __wcstoull_internal_defined 1
- #endif
- #if defined __OPTIMIZE__ && __GNUC__ >= 2
- /* Define inline functions which call the internal entry points. */
- __BEGIN_NAMESPACE_C99
- extern __inline double
- __NTH (wcstod (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr))
- { return __wcstod_internal (__nptr, __endptr, 0); }
- extern __inline long int
- __NTH (wcstol (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base))
- { return __wcstol_internal (__nptr, __endptr, __base, 0); }
- extern __inline unsigned long int
- __NTH (wcstoul (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base))
- { return __wcstoul_internal (__nptr, __endptr, __base, 0); }
- __END_NAMESPACE_C99
- # ifdef __USE_GNU
- extern __inline float
- __NTH (wcstof (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr))
- { return __wcstof_internal (__nptr, __endptr, 0); }
- extern __inline long double
- __NTH (wcstold (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr))
- { return __wcstold_internal (__nptr, __endptr, 0); }
- __extension__
- extern __inline long long int
- __NTH (wcstoq (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base))
- { return __wcstoll_internal (__nptr, __endptr, __base, 0); }
- __extension__
- extern __inline unsigned long long int
- __NTH (wcstouq (__const wchar_t *__restrict __nptr,
- wchar_t **__restrict __endptr, int __base))
- { return __wcstoull_internal (__nptr, __endptr, __base, 0); }
- # endif /* Use GNU. */
- #endif /* Optimizing GCC >=2. */
- #ifdef __USE_GNU
- /* Copy SRC to DEST, returning the address of the terminating L' ' in
- DEST. */
- extern wchar_t *wcpcpy (wchar_t *__dest, __const wchar_t *__src) __THROW;
- /* Copy no more than N characters of SRC to DEST, returning the address of
- the last character written into DEST. */
- extern wchar_t *wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
- __THROW;
- #endif /* use GNU */
- /* Wide character I/O functions. */
- #if defined __USE_ISOC99 || defined __USE_UNIX98
- __BEGIN_NAMESPACE_C99
- /* Select orientation for stream. */
- extern int fwide (__FILE *__fp, int __mode) __THROW;
- /* Write formatted output to STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fwprintf (__FILE *__restrict __stream,
- __const wchar_t *__restrict __format, ...)
- /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
- /* Write formatted output to stdout.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int wprintf (__const wchar_t *__restrict __format, ...)
- /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
- /* Write formatted output of at most N characters to S. */
- extern int swprintf (wchar_t *__restrict __s, size_t __n,
- __const wchar_t *__restrict __format, ...)
- __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
- /* Write formatted output to S from argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vfwprintf (__FILE *__restrict __s,
- __const wchar_t *__restrict __format,
- __gnuc_va_list __arg)
- /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
- /* Write formatted output to stdout from argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vwprintf (__const wchar_t *__restrict __format,
- __gnuc_va_list __arg)
- /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
- /* Write formatted output of at most N character to S from argument
- list ARG. */
- extern int vswprintf (wchar_t *__restrict __s, size_t __n,
- __const wchar_t *__restrict __format,
- __gnuc_va_list __arg)
- __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
- /* Read formatted input from STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fwscanf (__FILE *__restrict __stream,
- __const wchar_t *__restrict __format, ...)
- /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
- /* Read formatted input from stdin.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int wscanf (__const wchar_t *__restrict __format, ...)
- /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
- /* Read formatted input from S. */
- extern int swscanf (__const wchar_t *__restrict __s,
- __const wchar_t *__restrict __format, ...)
- __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
- __END_NAMESPACE_C99
- #endif /* Use ISO C99 and Unix98. */
- #ifdef __USE_ISOC99
- __BEGIN_NAMESPACE_C99
- /* Read formatted input from S into argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vfwscanf (__FILE *__restrict __s,
- __const wchar_t *__restrict __format,
- __gnuc_va_list __arg)
- /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
- /* Read formatted input from stdin into argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vwscanf (__const wchar_t *__restrict __format,
- __gnuc_va_list __arg)
- /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
- /* Read formatted input from S into argument list ARG. */
- extern int vswscanf (__const wchar_t *__restrict __s,
- __const wchar_t *__restrict __format,
- __gnuc_va_list __arg)
- __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
- __END_NAMESPACE_C99
- #endif /* Use ISO C99. */
- __BEGIN_NAMESPACE_C99
- /* Read a character from STREAM.
- These functions are possible cancellation points and therefore not
- marked with __THROW. */
- extern wint_t fgetwc (__FILE *__stream);
- extern wint_t getwc (__FILE *__stream);
- /* Read a character from stdin.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern wint_t getwchar (void);
- /* Write a character to STREAM.
- These functions are possible cancellation points and therefore not
- marked with __THROW. */
- extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
- extern wint_t putwc (wchar_t __wc, __FILE *__stream);
- /* Write a character to stdout.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern wint_t putwchar (wchar_t __wc);
- /* Get a newline-terminated wide character string of finite length
- from STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
- __FILE *__restrict __stream);
- /* Write a string to STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern int fputws (__const wchar_t *__restrict __ws,
- __FILE *__restrict __stream);
- /* Push a character back onto the input buffer of STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
- __END_NAMESPACE_C99
- #ifdef __USE_GNU
- /* These are defined to be equivalent to the `char' functions defined
- in POSIX.1:1996.
- These functions are not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation they are cancellation points and
- therefore not marked with __THROW. */
- extern wint_t getwc_unlocked (__FILE *__stream);
- extern wint_t getwchar_unlocked (void);
- /* This is the wide character version of a GNU extension.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern wint_t fgetwc_unlocked (__FILE *__stream);
- /* Faster version when locking is not necessary.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
- /* These are defined to be equivalent to the `char' functions defined
- in POSIX.1:1996.
- These functions are not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation they are cancellation points and
- therefore not marked with __THROW. */
- extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
- extern wint_t putwchar_unlocked (wchar_t __wc);
- /* This function does the same as `fgetws' but does not lock the stream.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
- __FILE *__restrict __stream);
- /* This function does the same as `fputws' but does not lock the stream.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern int fputws_unlocked (__const wchar_t *__restrict __ws,
- __FILE *__restrict __stream);
- #endif
- __BEGIN_NAMESPACE_C99
- /* Format TP into S according to FORMAT.
- Write no more than MAXSIZE wide characters and return the number
- of wide characters written, or 0 if it would exceed MAXSIZE. */
- extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
- __const wchar_t *__restrict __format,
- __const struct tm *__restrict __tp) __THROW;
- __END_NAMESPACE_C99
- # ifdef __USE_GNU
- # include <xlocale.h>
- /* Similar to `wcsftime' but takes the information from
- the provided locale and not the global locale. */
- extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
- __const wchar_t *__restrict __format,
- __const struct tm *__restrict __tp,
- __locale_t __loc) __THROW;
- # endif
- /* The X/Open standard demands that most of the functions defined in
- the <wctype.h> header must also appear here. This is probably
- because some X/Open members wrote their implementation before the
- ISO C standard was published and introduced the better solution.
- We have to provide these definitions for compliance reasons but we
- do this nonsense only if really necessary. */
- #if defined __USE_UNIX98 && !defined __USE_GNU
- # define __need_iswxxx
- # include <wctype.h>
- #endif
- __END_DECLS
- #endif /* _WCHAR_H defined */
- #endif /* wchar.h */