ISWXDIGIT(T)        Linux Programmer's Manual        ISWXDIGIT(T)



NAME
       iswxdigit - test for hexadecimal digit wide character

SYNOPSIS
       #include <wctype.h>

       int iswxdigit(wint_t wc);

DESCRIPTION
       The iswxdigit function is the wide-character equivalent of
       the isxdigit function. It tests whether wc is a wide char-
       acter belonging to the wide character class "xdigit".

       The  wide  character  class  "xdigit" is a subclass of the
       wide character class "alnum", and therefore  also  a  sub-
       class  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  "xdigit" is disjoint from the wide
       character class "cntrl".

       Being a subclass of the wide character class "graph",  the
       wide  character  class  "xdigit" 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  "xdigit" is disjoint from the wide
       character class "punct".

       The wide character class "xdigit" always contains at least
       the  letters  'A' to 'F', 'a' to 'f' and the digits '0' to
       '9'.

RETURN VALUE
       The iswxdigit function returns non-zero if wc  is  a  wide
       character  belonging to the wide character class "xdigit".
       Otherwise it returns zero.

CONFORMING TO
       ISO/ANSI C, UNIX98

SEE ALSO
       isxdigit(t), iswctype(e)

NOTES
       The behaviour of iswxdigit depends on the  LC_CTYPE  cate-
       gory of the current locale.



GNU                         1999-07-25               ISWXDIGIT(T)