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RedHat 9 (Linux i386) - man page for iswxdigit (redhat section 3)

ISWXDIGIT(3)			    Linux Programmer's Manual			     ISWXDIGIT(3)

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					    1999-07-25				     ISWXDIGIT(3)


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