ref: 3cc6c38f1347e3a9d61f27d28dbafad7fe4cae7b dir: /include/err.h/
#pragma once enum { OK = 0, /* you don't want these mass up with your values */ PERM_DENIED = -128, NAME_TOO_LONG, NO_FILE, FS_NOT_READY, DIR_NOT_EMPTY, NO_MEM, LL_ERR, }err;