1extern void abort (void);
2
3int arr[] = {1,2,3,4};
4int count = 0;
5
6int
7incr (void)
8{
9  return ++count;
10}
11
12int main()
13{
14  arr[count++] = incr ();
15  if (count != 2 || arr[count] != 3)
16    abort ();
17  return 0;
18}
19