1  typedef struct
       2  {
       3    int a, b;
       4  } T;
       5  
       6  f (T *bs)
       7  {
       8    long long x;
       9    x = ({
      10      union { T s; long long l; } u;
      11      u.s = *bs;
      12      u.l;
      13    });
      14  }