ref: 8e60c90fec994d43fd1b4be0c4c15c0381f1e7eb
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);
}