ref: f0c283da75c8f123cfe7485828c3045f27f35802
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;
}