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Hangin10

function ptr using class currently being defined.

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I'm having problems getting two classes to get along. Basically each one needs the other in their headers. I am using #pragma once to avoid the natural redefinition errors, but that's not the problem (or at least I don't think it is). (The actual code is fairly large, I'm doing my own GUI library as a learning exercise.) The basic idea is:
#pragma once
#include "B.h"

typedef void (*FUNPTR)(B*);

class A
{
private: 
     FUNPTR p;
};
-------
#pragma once
#include "A.h"

class B
{
public:
    /* stuff */
    A an_a;
};
The error I get is "C2460: 'A::FUNPTR' : uses 'A' which is being defined." which doesn't make any sense. Can someone help me with this? Thanks in advance :)

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A doesn't need B.

#pragma once
class B;

typedef void (*FUNPTR)(B*);

class A
{
private:
FUNPTR p;
};


-------

#pragma once

#include "A.h"

class B
{
public:
/* stuff */
A an_a;
};

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