Provided by: manpages-pt-dev_20040726-2_all bug

NAME

       iswdigit - test for decimal digit wide character

SYNOPSIS

       #include <wctype.h>

       int iswdigit (wint_t wc);

DESCRIPTION

       The  iswdigit  function is the wide-character equivalent of the isdigit
       function. It tests whether wc is a wide character belonging to the wide
       character class "digit".

       The  wide  character  class "digit" is a subclass of the wide character
       class "xdigit", and therefore also a subclass  of  the  wide  character
       class  "alnum",  of  the  wide  character class "graph" and of the wide
       character class "print".

       Being a  subclass  of  the  wide  character  class  "print",  the  wide
       character  class  "digit"  is  disjoint  from  the wide character class
       "cntrl".

       Being a  subclass  of  the  wide  character  class  "graph",  the  wide
       character  class  "digit"  is  disjoint  from  the wide character class
       "space" and its subclass "blank".

       Being a  subclass  of  the  wide  character  class  "alnum",  the  wide
       character  class  "digit"  is  disjoint  from  the wide character class
       "punct".

       The wide character class "digit" is disjoint from  the  wide  character
       class  "alpha" and therefore also disjoint from its subclasses "lower",
       "upper".

       The wide character class "digit" always contains exactly the digits ’0’
       to ’9’.

RETURN VALUE

       The  iswdigit  function  returns  non-zero  if  wc  is a wide character
       belonging to the wide character class  "digit".  Otherwise  it  returns
       zero.

CONFORMING TO

       ISO/ANSI C, UNIX98

SEE ALSO

       isdigit(3), iswctype(3)

NOTES

       The  behaviour  of  iswdigit  depends  on  the LC_CTYPE category of the
       current locale.