ref: 339c577e4428f7beefd82ce7eaa0d54a0e28c386
dir: /libc/src/isalpha.c/
/* See LICENSE file for copyright and license details. */
#define __USE_MACROS
#include <ctype.h>
#undef isalpha
int
isalpha(int c)
{
return _ctype[(unsigned char) c] & (_U|_L);
}