1  int a[2] = { 2, 0 };
       2  
       3  void foo(int *sp, int cnt)
       4  {
       5    int *p, *top;
       6  
       7    top = sp; sp -= cnt;
       8  
       9    for(p = sp; p <= top; p++)
      10      if (*p < 2) exit(0);
      11  }
      12  
      13  int main()
      14  {
      15    foo(a + 1, 1);
      16    abort();
      17  }