The obligatory forgotten files...

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  */