ref: 4f9f652f766f4ba4854889a45f1940737f3856c7
dir: /libc/src/iscntrl.c/
/* See LICENSE file for copyright and license details. */
#define __USE_MACROS
#include <ctype.h>
#undef iscntrl
int
iscntrl(int c)
{
return __ctype[(unsigned char) c] & (_C);
}