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(3) 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-charac-
       ter class "cntrl".

       Being a subclass of the wide-character class "graph", the wide-character class "xdigit" is disjoint from the wide-charac-
       ter 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-charac-
       ter 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 nonzero if wc is a wide character belonging to the wide-character class "xdigit".   Oth-
       erwise it returns zero.

CONFORMING TO
       C99.

NOTES
       The behavior of iswxdigit() depends on the LC_CTYPE category of the current locale.

SEE ALSO
       iswctype(3), isxdigit(3)

COLOPHON
       This  page  is  part of release 3.25 of the Linux man-pages project.  A description of the project, and information about
       reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



GNU                                                        1999-07-25                                               ISWXDIGIT(3)