int sig_list[] = { SIGINT, SIGQUIT, SIGILL, SIGALRM, SIGTERM, SIGUSR1 , SIGUSR2 };
int i;
int nele; // number of elements in the list
int sig_list[] = { SIGINT, SIGQUIT, SIGILL, SIGALRM, SIGTERM, SIGUSR1 , SIGUSR2 };
int i;
int nele; // number of elements in the list