iswdigit(3p) - phpMan

ISWDIGIT(P)                                                        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  Defini-
       tions volume of IEEE Std 1003.1-2001, Chapter 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-charac-
       ter 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 languages, 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() , isw-
       print() , 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 .



POSIX                                2003                          ISWDIGIT(P)

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