ISWCNTRL
Section: Linux Programmer's Manual (3)
Updated: 1999-07-25
Index
Return to Main Contents
NAME
iswcntrl - test for control wide character
SYNOPSIS
#include <wctype.h>
int iswcntrl(wint_t wc);
DESCRIPTION
The
iswcntrl()
function is the wide-character equivalent of the
iscntrl(3)
function.
It tests whether wc is a wide character
belonging to the wide-character class "cntrl".
The wide-character class "cntrl" is disjoint from the wide-character class
"print" and therefore also disjoint from its subclasses "graph", "alpha",
"upper", "lower", "digit", "xdigit", "punct".
For an unsigned char c, iscntrl(c)
implies iswcntrl(btowc(c)),
but not vice versa.
RETURN VALUE
The
iswcntrl()
function returns nonzero if wc is a
wide character belonging to the wide-character class "cntrl".
Otherwise it returns zero.
CONFORMING TO
C99.
NOTES
The behavior of
iswcntrl()
depends on the
LC_CTYPE
category of the
current locale.
SEE ALSO
iscntrl(3),
iswctype(3)
COLOPHON
This page is part of release 3.27 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/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
This document was created by
man2html,
using the manual pages.
Time: 19:49:23 GMT, April 27, 2011