#include <stdio.h>
#include <signal.h>
#include <unistd.h>

void deal_with_alarm(int x)
{ printf("The alarm went off\n"); }

void control_c(int x)
{ printf("control-c\n"); }

int main()
{ signal(SIGALRM, deal_with_alarm);
  signal(SIGINT, control_c);
  alarm(5);
  int i;
  for (i = 0; i < 10; i += 1)
  { printf("%d ", i);
    fflush(stdout);
    sleep(1); }
  printf("done\n"); }