1  typedef struct { int c, d, e, f, g; } D;
       2  
       3  void bar (unsigned long, unsigned long);
       4  void foo (D *y)
       5  {
       6    int x = 0;
       7  
       8    if (y->f == 0)
       9      x |= 0x1;
      10    if (y->g == 0)
      11      x |= 0x2;
      12    bar ((x << 16) | (y->c & 0xffff), (y->d << 16) | (y->e & 0xffff));
      13  }