I believe declaring class B public A {...} or vice versa should work.
-----Original Message-----
From: redhat-devel-list-admin@redhat.com
[mailto:redhat-devel-list-admin@redhat.com] On Behalf Of Thomas Dodd
Sent: Monday, February 24, 2003 11:21 AM
To: psyche-list@redhat.com; redhat-devel-list@redhat.com;
mozilla-builds@mozilla.org
Subject: C++
I had a question for a C++ programmer. Thought I might find one here :)
I have 2 classes that need to reference each other.
"headerA.h"
class A{
public:
int x;
int y;
B *left;
B *right;
}
"headerB.h"
class B{
public:
int a;
int b;
A *parent;
char foo();
}
Give that top is of type A, in top.left.foo() I need to modify
top.right.a
Any ideas? I've tried passing a A* in the constructor for B, but the
compiler doesn't
realize that A is a class when I try to compile, and complains about no
type listed.
I seams to be a circular reference since A needs B and B needs A. This
cannot be that
unusual, and has probably been solved before, I just don't know how.
Right now moy only though is to make parent a void* and the cast it to a
A* in the
implementation of B. That removes all type checking though and I'd
rather not abuse
void pointers like that.
-Thomas
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