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 character 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
       subclass 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(3), iswctype(3)

NOTES

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

GNU                                               July 25, 1999                                     ISWXDIGIT(3)