ref: 4a695da3a6e31f002608accb745d4369fe7f0eaa
dir: /libc/src/isupper.c/
/* See LICENSE file for copyright and license details. */
#define __USE_MACROS
#include <ctype.h>
#undef isupper
int
isupper(int c)
{
return _ctype[(unsigned char) c] & _U;
}