ISWCNTRL(3)		   Linux Programmers Manual		  ISWCNTRL(3)



NAME
       iswcntrl - test for control wide character

SYNOPSIS
       #include 

       int iswcntrl(wint_t wc);

DESCRIPTION
       The  iswcntrl()	function is the wide-character equivalent of the iscn
       trl(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 non-zero 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 cur
       rent locale.

SEE ALSO
       iscntrl(3), iswctype(3)

COLOPHON
       This  page  is  part of release 3.05 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)