1ISWXDIGIT(3)               Linux Programmer's Manual              ISWXDIGIT(3)
2
3
4

NAME

6       iswxdigit - test for hexadecimal digit wide character
7

SYNOPSIS

9       #include <wctype.h>
10
11       int iswxdigit(wint_t wc);
12

DESCRIPTION

14       The  iswxdigit()  function  is  the  wide-character  equivalent  of the
15       isxdigit(3) function.  It tests whether wc is a wide character  belong‐
16       ing to the wide-character class "xdigit".
17
18       The  wide-character  class "xdigit" is a subclass of the wide-character
19       class "alnum", and therefore also  a  subclass  of  the  wide-character
20       class "graph" and of the wide-character class "print".
21
22       Being  a subclass of the wide-character class "print", the wide-charac‐
23       ter class "xdigit" is disjoint from the wide-character class "cntrl".
24
25       Being a subclass of the wide-character class "graph", the  wide-charac‐
26       ter  class  "xdigit"  is disjoint from the wide-character class "space"
27       and its subclass "blank".
28
29       Being a subclass of the wide-character class "alnum", the  wide-charac‐
30       ter class "xdigit" is disjoint from the wide-character class "punct".
31
32       The  wide-character class "xdigit" always contains at least the letters
33       'A' to 'F', 'a' to 'f' and the digits '0' to '9'.
34

RETURN VALUE

36       The iswxdigit() function returns non-zero if wc  is  a  wide  character
37       belonging  to  the wide-character class "xdigit".  Otherwise it returns
38       zero.
39

CONFORMING TO

41       C99.
42

NOTES

44       The behavior of iswxdigit() depends on the  LC_CTYPE  category  of  the
45       current locale.
46

SEE ALSO

48       iswctype(3), isxdigit(3)
49

COLOPHON

51       This  page  is  part of release 3.22 of the Linux man-pages project.  A
52       description of the project, and information about reporting  bugs,  can
53       be found at http://www.kernel.org/doc/man-pages/.
54
55
56
57GNU                               1999-07-25                      ISWXDIGIT(3)
Impressum