4 setvbuf(stdout, NULL, _IONBF, 0);
7 dies_ok({int x = 0; x = x/x;}, "can't divide by zero");
8 lives_ok({int x; x = 3/7;}, "this is a perfectly fine statement");
9 dies_ok({abort();}, "abort kills the program");
11 {printf("stdout\n"); fprintf(stderr, "stderr\n"); abort();},