Cross including headers

I doubt you really need to cross-include headers. I would just put forward declarations at the top of each for the stuff in the other header that you are referencing.

If you only need a pointer in one of the classes, you don''t need the whole declaration. Just put something like that :

class a;

class b
{
a * ptr;
}

Thou Shalt Not Commit Circular Includes!!

First thing to do is make sure you really DO need Class A to know Class B and Class B to know Class A. What kind of relationship are you attempting there? Generally when I see circular dependencies it''s because something was done incorrectly.

If you really, really do have to do that, do what Kensai said and use a forward class reference. To do this, go to Class A''s header file and put:

class Class B;

before your declaration of Class A. Do the same with Class A in Class B''s header.