Manpage of ISWCNTRL
ISWCNTRLSection: Linux Programmer's Manual (3)
NAMEiswcntrl - test for control wide character
#include <wctype.h>int iswcntrl(wint_t wc);
DESCRIPTIONThe iswcntrl() function is the wide-character equivalent of the iscntrl(3) function. It tests whether wcis 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".
RETURN VALUEThe iswcntrl() function returns nonzero if wcis a wide character belonging to the wide-character class "cntrl". Otherwise, it returns zero.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
|iswcntrl()||Thread safety||MT-Safe locale|
CONFORMING TOPOSIX.1-2001, POSIX.1-2008, C99.
NOTESThe behavior of iswcntrl() depends on the LC_CTYPEcategory of the current locale.
SEE ALSOiscntrl(3), iswctype(3)
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Time: 22:27:50 GMT, June 20, 2016