1  struct ii
       2  {
       3    int a;
       4    int b;
       5  };
       6  
       7  struct foo
       8  {
       9    int a;
      10    struct ii ab;
      11    int b;
      12  };
      13  
      14  struct ii
      15  foo (int *p, struct foo a)
      16  {
      17    p[0] = a.a;
      18    p[1] = a.ab.a;
      19    p[2] = a.ab.b;
      20    p[3] = a.b;
      21    return a.ab;
      22  }
      23  
      24  str (struct ii ab, struct ii *p)
      25  {
      26    *p = ab;
      27  }
      28  
      29  ll (long long ab, long long *p)
      30  {
      31    *p = ab;
      32  }
      33