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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-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 nonzero if  wc  is  a  wide  character
       belonging  to  the wide-character class "xdigit".  Otherwise 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 3.65 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/.



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