ref: 820c609d293c7bdc66a72cd34db8fa1ea205d399
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); }