ref: 9be3c2347c94f2d6a1bd5597a52c03aa02f1c535 dir: /libc/src/iscntrl.c/
/* See LICENSE file for copyright and license details. */ #define __USE_MACROS #include <ctype.h> #undef iscntrl int iscntrl(int c) { return _ctype[(unsigned char) c] & (_C); }