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 aqAaq to aqFaq, aqaaq to aqfaq
and the digits aq0aq to aq9aq.
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
C99.
NOTES
The behavior of
iswxdigit()
depends on the
LC_CTYPE
category of the
current locale.
This page is part of release 3.14 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/.
