Path: utzoo!attcan!uunet!mcsun!ukc!newcastle.ac.uk!stobhill!nlfm
From: Lindsay.Marshall@newcastle.ac.uk (Lindsay F. Marshall)
Newsgroups: comp.lang.c++
Subject: re:  how do you define classes that refer to each other ???
Message-ID: <1990Mar26.115427.14031@newcastle.ac.uk>
Date: 26 Mar 90 11:54:27 GMT
Sender: news@newcastle.ac.uk
Organization: Computing Lab, University of Newcastle upon Tyne, UK, NE1 7RU
Lines: 30

Just to be awkward, can anybody suggest a legal way of doing the
following :-

	class B;

	class A
	{
	public:
	    A();
    
	    void fa(void (*B::fb)());
	};

	class B
	{
	public:
	    B();
    
	    void fb(void (*A::fa)());
	};

CC 2.0 gives syntax errors when you try to do this, g++ 1.37.1 gives
reasonable error messages. I don't know why you might want to do this,
but I'm sure someone out there will want to do it some time.

Lindsay
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