1  typedef struct trio { int a, b, c; } trio;
       2  
       3  int
       4  bar (int i, int j, int k, trio t)
       5  {
       6    if (t.a != 1 || t.b != 2 || t.c != 3 ||
       7        i != 4 || j != 5 || k != 6)
       8      abort ();
       9  }
      10  
      11  int
      12  foo (trio t, int i, int j, int k)
      13  {
      14    return bar (i, j, k, t);
      15  }
      16  
      17  main ()
      18  {
      19    trio t = { 1, 2, 3 };
      20  
      21    foo (t, 4, 5, 6);
      22    exit (0);
      23  }