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Linux 2.6 - man page for iswcntrl (linux section 3)

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ISWCNTRL(3)			    Linux Programmer's Manual			      ISWCNTRL(3)

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 3.55 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				      ISWCNTRL(3)
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