struct a <---> struct b

[Alan_T._Cote.OsbuSouth at Xerox.COM]

Finally -- one I can answer!!

>What is the best way to declare three different structures, each containing a pointer
>to the other two? I keep running into a forward referencing error.

Try declaring all three as externals ahead of time.  Try the following:

    struct s
      {
      struct s *p0;
      struct s *p1;
      };

    extern struct s a;
    extern struct s b;
    extern struct s c;

    struct s a = { &b, &c };
    struct s b = { &a, &c };
    struct s c = { &a, &b };

How's that?!?