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 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

       ISO/ANSI C, UNIX98

SEE ALSO

       iscntrl(3), iswctype(3)

NOTES

       The behaviour of iswcntrl depends on the LC_CTYPE category of the current locale.

GNU                                               July 25, 1999                                      ISWCNTRL(3)