NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | NOTES | SEE ALSO | COLOPHON
ISWXDIGIT(3) Linux Programmer's Manual ISWXDIGIT(3)
iswxdigit - test for hexadecimal digit wide character
#include <wctype.h>
int iswxdigit(wint_t wc);
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'.
The iswxdigit() function returns non-zero if wc is a wide character belonging
to the wide-character class "xdigit". Otherwise it returns zero.
C99.
The behavior of iswxdigit() depends on the LC_CTYPE category of the current
locale.
iswctype(3), isxdigit(3)
This page is part of release 3.23 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)