sortix-mirror/libc/ctype/iscntrl.c

31 lines
1.1 KiB
C

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
ctype/iscntrl.c
Returns whether the character is a control character.
*******************************************************************************/
#include <ctype.h>
int iscntrl(int c)
{
return 0 <= c && c < 32;
}