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Diffstat (limited to 'include/wchar.h')
| -rw-r--r-- | include/wchar.h | 696 |
1 files changed, 696 insertions, 0 deletions
diff --git a/include/wchar.h b/include/wchar.h new file mode 100644 index 000000000..077f6832a --- /dev/null +++ b/include/wchar.h @@ -0,0 +1,696 @@ +/* Copyright (C) 1995-1999, 2000, 2001 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 + +#ifndef __UCLIBC_HAS_WCHAR__ +#error Attempted to include wchar.h when uClibc built without wide char support. +#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; +#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 + +/* Public type. */ +typedef __mbstate_t mbstate_t; + +#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 + +/* This incomplete type is defined in <time.h> but needed here because + of `wcsftime'. */ +struct tm; + + +__BEGIN_DECLS + +/* 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__; + +#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. */ +#if 0 +# 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 +#endif + +/* 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; + +#ifdef __USE_GNU +#if 0 +/* 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; +#endif + +/* Duplicate S, returning an identical malloc'd string. */ +extern wchar_t *wcsdup (__const wchar_t *__s) __THROW __attribute_malloc__; +#endif + +/* 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__; + +#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 + +/* 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__; + +#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 + +/* 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__; + +#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 + + +/* 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; + +#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 + + +/* 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; + +#if 0 +/* #ifdef __USE_EXTERN_INLINES */ +/* Define inline function as optimization. */ +extern __inline size_t mbrlen (__const char *__restrict __s, size_t __n, + mbstate_t *__restrict __ps) __THROW +{ return (__ps != NULL + ? mbrtowc (NULL, __s, __n, __ps) : __mbrlen (__s, __n, NULL)); } +#endif + +/* 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; + + +#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. */ + + +/* 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 __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. */ + +#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. */ + +#if 0 +/* #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 */ + + +#if 0 +/* 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. */ + +extern __inline double wcstod (__const wchar_t *__restrict __nptr, + wchar_t **__restrict __endptr) __THROW +{ return __wcstod_internal (__nptr, __endptr, 0); } +extern __inline long int wcstol (__const wchar_t *__restrict __nptr, + wchar_t **__restrict __endptr, + int __base) __THROW +{ return __wcstol_internal (__nptr, __endptr, __base, 0); } +extern __inline unsigned long int wcstoul (__const wchar_t *__restrict __nptr, + wchar_t **__restrict __endptr, + int __base) __THROW +{ return __wcstoul_internal (__nptr, __endptr, __base, 0); } + +# ifdef __USE_GNU +extern __inline float wcstof (__const wchar_t *__restrict __nptr, + wchar_t **__restrict __endptr) __THROW +{ return __wcstof_internal (__nptr, __endptr, 0); } +extern __inline long double wcstold (__const wchar_t *__restrict __nptr, + wchar_t **__restrict __endptr) __THROW +{ return __wcstold_internal (__nptr, __endptr, 0); } + + +__extension__ +extern __inline long long int wcstoq (__const wchar_t *__restrict __nptr, + wchar_t **__restrict __endptr, + int __base) __THROW +{ return __wcstoll_internal (__nptr, __endptr, __base, 0); } +__extension__ +extern __inline unsigned long long int wcstouq (__const wchar_t * + __restrict __nptr, + wchar_t **__restrict __endptr, + int __base) __THROW +{ return __wcstoull_internal (__nptr, __endptr, __base, 0); } +# endif /* Use GNU. */ +#endif /* Optimizing GCC >=2. */ +#endif + + +#ifdef __USE_GNU +/* Copy SRC to DEST, returning the address of the terminating L'\0' 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 + +/* Select orientation for stream. */ +extern int fwide (__FILE *__fp, int __mode) __THROW; + + +/* Write formatted output to STREAM. */ +extern int fwprintf (__FILE *__restrict __stream, + __const wchar_t *__restrict __format, ...) + __THROW /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */; +/* Write formatted output to stdout. */ +extern int wprintf (__const wchar_t *__restrict __format, ...) + __THROW /* __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. */ +extern int vfwprintf (__FILE *__restrict __s, + __const wchar_t *__restrict __format, + __gnuc_va_list __arg) + __THROW /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */; +/* Write formatted output to stdout from argument list ARG. */ +extern int vwprintf (__const wchar_t *__restrict __format, + __gnuc_va_list __arg) + __THROW /* __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. */ +extern int fwscanf (__FILE *__restrict __stream, + __const wchar_t *__restrict __format, ...) + __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; +/* Read formatted input from stdin. */ +extern int wscanf (__const wchar_t *__restrict __format, ...) + __THROW /* __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))) */; +#endif /* Use ISO C99 and Unix98. */ + +#ifdef __USE_ISOC99 +/* Read formatted input from S into argument list ARG. */ +extern int vfwscanf (__FILE *__restrict __s, + __const wchar_t *__restrict __format, + __gnuc_va_list __arg) + __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; +/* Read formatted input from stdin into argument list ARG. */ +extern int vwscanf (__const wchar_t *__restrict __format, + __gnuc_va_list __arg) + __THROW /* __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))) */; +#endif /* Use ISO C99. */ + + +/* Read a character from STREAM. */ +extern wint_t fgetwc (__FILE *__stream) __THROW; +extern wint_t getwc (__FILE *__stream) __THROW; + +/* Read a character from stdin. */ +extern wint_t getwchar (void) __THROW; + + +/* Write a character to STREAM. */ +extern wint_t fputwc (wchar_t __wc, __FILE *__stream) __THROW; +extern wint_t putwc (wchar_t __wc, __FILE *__stream) __THROW; + +/* Write a character to stdout. */ +extern wint_t putwchar (wchar_t __wc) __THROW; + + +/* Get a newline-terminated wide character string of finite length + from STREAM. */ +extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n, + __FILE *__restrict __stream) __THROW; + +/* Write a string to STREAM. */ +extern int fputws (__const wchar_t *__restrict __ws, + __FILE *__restrict __stream) __THROW; + + +/* Push a character back onto the input buffer of STREAM. */ +extern wint_t ungetwc (wint_t __wc, __FILE *__stream) __THROW; + + +#ifdef __USE_GNU +/* These are defined to be equivalent to the `char' functions defined + in POSIX.1:1996. */ +extern wint_t getwc_unlocked (__FILE *__stream) __THROW; +extern wint_t getwchar_unlocked (void) __THROW; + +/* This is the wide character version of a GNU extension. */ +extern wint_t fgetwc_unlocked (__FILE *__stream) __THROW; + +/* Faster version when locking is not necessary. */ +extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream) __THROW; + +/* These are defined to be equivalent to the `char' functions defined + in POSIX.1:1996. */ +extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream) __THROW; +extern wint_t putwchar_unlocked (wchar_t __wc) __THROW; + + +/* This function does the same as `fgetws' but does not lock the stream. */ +extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n, + __FILE *__restrict __stream) __THROW; + +/* This function does the same as `fputws' but does not lock the stream. */ +extern int fputws_unlocked (__const wchar_t *__restrict __ws, + __FILE *__restrict __stream) __THROW; +#endif + + +/* 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; + +/* 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 */ |