ref: 8b178526d17c09010b94b2c6655c0c98648a2f68
dir: /lib/c/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;
}