text: #ifndef _WCHAR_H_
  #define _WCHAR_H_
  
  #include <_ansi.h>
  
  #include <sys/reent.h>
  
  #define __need_size_t
  #define __need_wchar_t
  #define __need_wint_t
  #define __need_NULL
  #include <stddef.h>
  
  #define __need___va_list
  #include <stdarg.h>
  
  /* For _mbstate_t definition. */
  #include <sys/_types.h>
  #include <sys/cdefs.h>
  /* For __STDC_ISO_10646__ */
  #include <sys/features.h>
  
  #ifndef WEOF
  # define WEOF ((wint_t)-1)
  #endif
  
  /* This must match definition in <stdint.h> */
  #ifndef WCHAR_MIN
  #ifdef __WCHAR_MIN__
  #define WCHAR_MIN __WCHAR_MIN__
  #elif defined(__WCHAR_UNSIGNED__) || (L'\0' - 1 > 0)
  #define WCHAR_MIN (0 + L'\0')
  #else
  #define WCHAR_MIN (-0x7fffffff - 1 + L'\0')
  #endif
  #endif
  
  /* This must match definition in <stdint.h> */
  #ifndef WCHAR_MAX
  #ifdef __WCHAR_MAX__
  #define WCHAR_MAX __WCHAR_MAX__
  #elif defined(__WCHAR_UNSIGNED__) || (L'\0' - 1 > 0)
  #define WCHAR_MAX (0xffffffffu + L'\0')
  #else
  #define WCHAR_MAX (0x7fffffff + L'\0')
  #endif
  #endif
  
  _BEGIN_STD_C
  
  /* As in stdio.h, <sys/reent.h> defines __FILE. */
  typedef __FILE FILE;
  
  /* As required by POSIX.1-2008, declare tm as incomplete type.
     The actual definition is in time.h. */
  struct tm;
  
  #ifndef _MBSTATE_T
  #define _MBSTATE_T
  typedef _mbstate_t mbstate_t;
  #endif /* _MBSTATE_T */
  
  wint_t	_EXFUN(btowc, (int));
  int	_EXFUN(wctob, (wint_t));
  size_t	_EXFUN(mbrlen, (const char *__restrict, size_t, mbstate_t *__restrict));
  size_t	_EXFUN(mbrtowc, (wchar_t *__restrict, const char *__restrict, size_t,
  						mbstate_t *__restrict));
  size_t	_EXFUN(_mbrtowc_r, (struct _reent *, wchar_t * , const char * , 
  			size_t, mbstate_t *));
  int	_EXFUN(mbsinit, (const mbstate_t *));
  size_t	_EXFUN(mbsnrtowcs, (wchar_t *__restrict, const char **__restrict,
  				size_t, size_t, mbstate_t *__restrict));
  size_t	_EXFUN(_mbsnrtowcs_r, (struct _reent *, wchar_t * , const char ** ,
  			size_t, size_t, mbstate_t *));
  size_t	_EXFUN(mbsrtowcs, (wchar_t *__restrict, const char **__restrict, size_t,
  				mbstate_t *__restrict));
  size_t	_EXFUN(_mbsrtowcs_r, (struct _reent *, wchar_t * , const char ** , size_t, mbstate_t *));
  size_t	_EXFUN(wcrtomb, (char *__restrict, wchar_t, mbstate_t *__restrict));
  size_t	_EXFUN(_wcrtomb_r, (struct _reent *, char * , wchar_t, mbstate_t *));
  size_t	_EXFUN(wcsnrtombs, (char *__restrict, const wchar_t **__restrict,
  				size_t, size_t, mbstate_t *__restrict));
  size_t	_EXFUN(_wcsnrtombs_r, (struct _reent *, char * , const wchar_t ** , 
  			size_t, size_t, mbstate_t *));
  size_t	_EXFUN(wcsrtombs, (char *__restrict, const wchar_t **__restrict,
  				size_t, mbstate_t *__restrict));
  size_t	_EXFUN(_wcsrtombs_r, (struct _reent *, char * , const wchar_t ** , 
  			size_t, mbstate_t *));
  int	_EXFUN(wcscasecmp, (const wchar_t *, const wchar_t *));
  wchar_t	*_EXFUN(wcscat, (wchar_t *__restrict, const wchar_t *__restrict));
  wchar_t	*_EXFUN(wcschr, (const wchar_t *, wchar_t));
  int	_EXFUN(wcscmp, (const wchar_t *, const wchar_t *));
  int	_EXFUN(wcscoll, (const wchar_t *, const wchar_t *));
  wchar_t	*_EXFUN(wcscpy, (wchar_t *__restrict, const wchar_t *__restrict));
  wchar_t	*_EXFUN(wcpcpy, (wchar_t *__restrict,
  				 const wchar_t *__restrict));
  wchar_t	*_EXFUN(wcsdup, (const wchar_t *));
  wchar_t	*_EXFUN(_wcsdup_r, (struct _reent *, const wchar_t * ));
  size_t	_EXFUN(wcscspn, (const wchar_t *, const wchar_t *));
  size_t  _EXFUN(wcsftime, (wchar_t *__restrict, size_t,
  				const wchar_t *__restrict, const struct tm *__restrict));
  size_t	_EXFUN(wcslcat, (wchar_t *, const wchar_t *, size_t));
  size_t	_EXFUN(wcslcpy, (wchar_t *, const wchar_t *, size_t));
  size_t	_EXFUN(wcslen, (const wchar_t *));
  int	_EXFUN(wcsncasecmp, (const wchar_t *, const wchar_t *, size_t));
  wchar_t	*_EXFUN(wcsncat, (wchar_t *__restrict,
  				 const wchar_t *__restrict, size_t));
  int	_EXFUN(wcsncmp, (const wchar_t *, const wchar_t *, size_t));
  wchar_t	*_EXFUN(wcsncpy, (wchar_t *__restrict,
  				 const wchar_t *__restrict, size_t));
  wchar_t	*_EXFUN(wcpncpy, (wchar_t *__restrict,
  				 const wchar_t *__restrict, size_t));
  size_t	_EXFUN(wcsnlen, (const wchar_t *, size_t));
  wchar_t	*_EXFUN(wcspbrk, (const wchar_t *, const wchar_t *));
  wchar_t	*_EXFUN(wcsrchr, (const wchar_t *, wchar_t));
  size_t	_EXFUN(wcsspn, (const wchar_t *, const wchar_t *));
  wchar_t	*_EXFUN(wcsstr, (const wchar_t *__restrict,
  				 const wchar_t *__restrict));
  wchar_t	*_EXFUN(wcstok, (wchar_t *__restrict, const wchar_t *__restrict,
  				 wchar_t **__restrict));
  double _EXFUN(wcstod, (const wchar_t *__restrict, wchar_t **__restrict));
  double _EXFUN(_wcstod_r, (struct _reent *, const wchar_t *, wchar_t **));
  float _EXFUN(wcstof, (const wchar_t *__restrict, wchar_t **__restrict));
  float _EXFUN(_wcstof_r, (struct _reent *, const wchar_t *, wchar_t **));
  int	_EXFUN(wcswidth, (const wchar_t *, size_t));
  size_t	_EXFUN(wcsxfrm, (wchar_t *__restrict, const wchar_t *__restrict,
  				size_t));
  int	_EXFUN(wcwidth, (const wchar_t));
  wchar_t	*_EXFUN(wmemchr, (const wchar_t *, wchar_t, size_t));
  int	_EXFUN(wmemcmp, (const wchar_t *, const wchar_t *, size_t));
  wchar_t	*_EXFUN(wmemcpy, (wchar_t *__restrict, const wchar_t *__restrict,
  				 size_t));
  wchar_t	*_EXFUN(wmemmove, (wchar_t *, const wchar_t *, size_t));
  wchar_t	*_EXFUN(wmemset, (wchar_t *, wchar_t, size_t));
  
  long    _EXFUN(wcstol, (const wchar_t *__restrict, wchar_t **__restrict, int));
  long long _EXFUN(wcstoll, (const wchar_t *__restrict, wchar_t **__restrict,
  				  int));
  unsigned long _EXFUN(wcstoul, (const wchar_t *__restrict, wchar_t **__restrict,
  					  int));
  unsigned long long _EXFUN(wcstoull, (const wchar_t *__restrict,
  						   wchar_t **__restrict, int));
  long    _EXFUN(_wcstol_r, (struct _reent *, const wchar_t *, wchar_t **, int));
  long long _EXFUN(_wcstoll_r, (struct _reent *, const wchar_t *, wchar_t **, int));
  unsigned long _EXFUN(_wcstoul_r, (struct _reent *, const wchar_t *, wchar_t **, int));
  unsigned long long _EXFUN(_wcstoull_r, (struct _reent *, const wchar_t *, wchar_t **, int));
  /* On platforms where long double equals double.  */
  #ifdef _LDBL_EQ_DBL
  long double _EXFUN(wcstold, (const wchar_t *, wchar_t **));
  #endif /* _LDBL_EQ_DBL */
  
  wint_t _EXFUN(fgetwc, (__FILE *));
  wchar_t *_EXFUN(fgetws, (wchar_t *__restrict, int, __FILE *__restrict));
  wint_t _EXFUN(fputwc, (wchar_t, __FILE *));
  int _EXFUN(fputws, (const wchar_t *__restrict, __FILE *__restrict));
  int _EXFUN (fwide, (__FILE *, int));
  wint_t _EXFUN (getwc, (__FILE *));
  wint_t _EXFUN (getwchar, (void));
  wint_t _EXFUN(putwc, (wchar_t, __FILE *));
  wint_t _EXFUN(putwchar, (wchar_t));
  wint_t _EXFUN (ungetwc, (wint_t wc, __FILE *));
  
  wint_t _EXFUN(_fgetwc_r, (struct _reent *, __FILE *));
  wint_t _EXFUN(_fgetwc_unlocked_r, (struct _reent *, __FILE *));
  wchar_t *_EXFUN(_fgetws_r, (struct _reent *, wchar_t *, int, __FILE *));
  wchar_t *_EXFUN(_fgetws_unlocked_r, (struct _reent *, wchar_t *, int, __FILE *));
  wint_t _EXFUN(_fputwc_r, (struct _reent *, wchar_t, __FILE *));
  wint_t _EXFUN(_fputwc_unlocked_r, (struct _reent *, wchar_t, __FILE *));
  int _EXFUN(_fputws_r, (struct _reent *, const wchar_t *, __FILE *));
  int _EXFUN(_fputws_unlocked_r, (struct _reent *, const wchar_t *, __FILE *));
  int _EXFUN (_fwide_r, (struct _reent *, __FILE *, int));
  wint_t _EXFUN (_getwc_r, (struct _reent *, __FILE *));
  wint_t _EXFUN (_getwc_unlocked_r, (struct _reent *, __FILE *));
  wint_t _EXFUN (_getwchar_r, (struct _reent *ptr));
  wint_t _EXFUN (_getwchar_unlocked_r, (struct _reent *ptr));
  wint_t _EXFUN(_putwc_r, (struct _reent *, wchar_t, __FILE *));
  wint_t _EXFUN(_putwc_unlocked_r, (struct _reent *, wchar_t, __FILE *));
  wint_t _EXFUN(_putwchar_r, (struct _reent *, wchar_t));
  wint_t _EXFUN(_putwchar_unlocked_r, (struct _reent *, wchar_t));
  wint_t _EXFUN (_ungetwc_r, (struct _reent *, wint_t wc, __FILE *));
  
  #if __GNU_VISIBLE
  wint_t _EXFUN(fgetwc_unlocked, (__FILE *));
  wchar_t *_EXFUN(fgetws_unlocked, (wchar_t *__restrict, int, __FILE *__restrict));
  wint_t _EXFUN(fputwc_unlocked, (wchar_t, __FILE *));
  int _EXFUN(fputws_unlocked, (const wchar_t *__restrict, __FILE *__restrict));
  wint_t _EXFUN(getwc_unlocked, (__FILE *));
  wint_t _EXFUN(getwchar_unlocked, (void));
  wint_t _EXFUN(putwc_unlocked, (wchar_t, __FILE *));
  wint_t _EXFUN(putwchar_unlocked, (wchar_t));
  #endif
  
  __FILE *_EXFUN (open_wmemstream, (wchar_t **, size_t *));
  __FILE *_EXFUN (_open_wmemstream_r, (struct _reent *, wchar_t **, size_t *));
  
  #ifndef __VALIST
  #ifdef __GNUC__
  #define __VALIST __gnuc_va_list
  #else
  #define __VALIST char*
  #endif
  #endif
  
  int	_EXFUN(fwprintf, (__FILE *__restrict, const wchar_t *__restrict, ...));
  int	_EXFUN(swprintf, (wchar_t *__restrict, size_t,
  			const wchar_t *__restrict, ...));
  int	_EXFUN(vfwprintf, (__FILE *__restrict, const wchar_t *__restrict,
  			__VALIST));
  int	_EXFUN(vswprintf, (wchar_t *__restrict, size_t,
  			const wchar_t *__restrict, __VALIST));
  int	_EXFUN(vwprintf, (const wchar_t *__restrict, __VALIST));
  int	_EXFUN(wprintf, (const wchar_t *__restrict, ...));
  
  int	_EXFUN(_fwprintf_r, (struct _reent *, __FILE *, const wchar_t *, ...));
  int	_EXFUN(_swprintf_r, (struct _reent *, wchar_t *, size_t, const wchar_t *, ...));
  int	_EXFUN(_vfwprintf_r, (struct _reent *, __FILE *, const wchar_t *, __VALIST));
  int	_EXFUN(_vswprintf_r, (struct _reent *, wchar_t *, size_t, const wchar_t *, __VALIST));
  int	_EXFUN(_vwprintf_r, (struct _reent *, const wchar_t *, __VALIST));
  int	_EXFUN(_wprintf_r, (struct _reent *, const wchar_t *, ...));
  
  int	_EXFUN(fwscanf, (__FILE *__restrict, const wchar_t *__restrict, ...));
  int	_EXFUN(swscanf, (const wchar_t *__restrict,
  			const wchar_t *__restrict, ...));
  int	_EXFUN(vfwscanf, (__FILE *__restrict, const wchar_t *__restrict,
  			__VALIST));
  int	_EXFUN(vswscanf, (const wchar_t *__restrict, const wchar_t *__restrict,
  			__VALIST));
  int	_EXFUN(vwscanf, (const wchar_t *__restrict, __VALIST));
  int	_EXFUN(wscanf, (const wchar_t *__restrict, ...));
  
  int	_EXFUN(_fwscanf_r, (struct _reent *, __FILE *, const wchar_t *, ...));
  int	_EXFUN(_swscanf_r, (struct _reent *, const wchar_t *, const wchar_t *, ...));
  int	_EXFUN(_vfwscanf_r, (struct _reent *, __FILE *, const wchar_t *, __VALIST));
  int	_EXFUN(_vswscanf_r, (struct _reent *, const wchar_t *, const wchar_t *, __VALIST));
  int	_EXFUN(_vwscanf_r, (struct _reent *, const wchar_t *, __VALIST));
  int	_EXFUN(_wscanf_r, (struct _reent *, const wchar_t *, ...));
  
  #define getwc(fp)	fgetwc(fp)
  #define putwc(wc,fp)	fputwc((wc), (fp))
  #define getwchar()	fgetwc(_REENT->_stdin)
  #define putwchar(wc)	fputwc((wc), _REENT->_stdout)
  
  #if __GNU_VISIBLE
  #define getwc_unlocked(fp)	fgetwc_unlocked(fp)
  #define putwc_unlocked(wc,fp)	fputwc_unlocked((wc), (fp))
  #define getwchar_unlocked()	fgetwc_unlocked(_REENT->_stdin)
  #define putwchar_unlocked(wc)	fputwc_unlocked((wc), _REENT->_stdout)
  #endif
  
  _END_STD_C
  
  #endif /* _WCHAR_H_ */
  