ref: a02f6ec0102245d81519c74b2a8651be6a9cdd8c
dir: /libc/src/islower.c/
/* See LICENSE file for copyright and license details. */
#define __USE_MACROS
#include <ctype.h>
#undef islower
int
islower(int c)
{
return _ctype[(unsigned char) c] & _L;
}