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ISWDIGIT(P)		   POSIX Programmer's Manual		   ISWDIGIT(P)

NAME
       iswdigit - test for a decimal digit wide-character code

SYNOPSIS
       #include <wctype.h>

       int iswdigit(wint_t wc);

DESCRIPTION
       The  iswdigit() function shall test whether wc is a wide-character code
       representing a character	 of  class  digit  in  the  program's  current
       locale;	see the Base Definitions volume of IEEE Std 1003.1-2001, Chap‐
       ter 7, Locale.

       The wc argument is a wint_t, the value of which the  application	 shall
       ensure  is  a wide-character code corresponding to a valid character in
       the current locale, or equal to the value of the	 macro	WEOF.  If  the
       argument has any other value, the behavior is undefined.

RETURN VALUE
       The  iswdigit() function shall return non-zero if wc is a decimal digit
       wide-character code; otherwise, it shall return 0.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       To ensure applications  portability,  especially	 across	 natural  lan‐
       guages,	only  this  function  and those listed in the SEE ALSO section
       should be used for classification of wide-character codes.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       iswalnum() , iswalpha()	,  iswcntrl()  ,  iswctype()  ,	 iswgraph()  ,
       iswlower()  ,  iswprint()  ,  iswpunct()	 ,  iswspace()	, iswupper() ,
       iswxdigit()  ,  setlocale()  ,	the   Base   Definitions   volume   of
       IEEE Std 1003.1-2001, Chapter 7, Locale, <wchar.h>, <wctype.h>

COPYRIGHT
       Portions	 of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating	System	Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003	by  the	 Institute  of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained	online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			   ISWDIGIT(P)
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