1  typedef struct { int s, t; } C;
       2  C x;
       3  int foo (void);
       4  void bar (int);
       5  
       6  int baz (void)
       7  {
       8    int a = 0, c, d = 0;
       9    C *b = &x;
      10  
      11    while ((c = foo ()))
      12      switch(c)
      13        {
      14        case 23:
      15  	bar (1);
      16  	break;
      17        default:
      18  	break;
      19        }
      20  
      21    if (a == 0 || (a & 1))
      22      {
      23        if (b->s)
      24  	{
      25  	  if (a)
      26  	    bar (1);
      27  	  else
      28  	    a = 16;
      29  	}
      30        else if (b->t)
      31  	{
      32  	  if (a)
      33  	    bar (1);
      34  	  else
      35  	    a = 32;
      36  	}
      37      }
      38  
      39    if (d && (a & ~127))
      40      bar (2);
      41    return 0;
      42  }