3 This file is part of the Public Domain C Library (PDCLib).
4 Permission is granted to use, modify, and / or redistribute at will.
10 #include <_PDCLIB_locale.h>
14 return ( _PDCLIB_threadlocale()->_CType[c].flags & _PDCLIB_CTYPE_CNTRL );
20 #include <_PDCLIB_test.h>
24 TESTCASE( iscntrl( '\a' ) );
25 TESTCASE( iscntrl( '\b' ) );
26 TESTCASE( iscntrl( '\n' ) );
27 TESTCASE( ! iscntrl( ' ' ) );