Function Pointers and Forward Declaration... Damn, the third time too!

#pragma once
#include <list>
#include "Link.h"

using namespace std;

class Node
{
public:

	double oldValue;
	double value;

	list<Link*> inputs;

	double (*inputFunc)((list<double>) &); // Compiler says something is wrong here!

	Node(void)
	{
	}

	~Node(void)
	{
	}

	double getValue()
	{
		return oldValue;
	}

	void ComputeValue()
	{
		list<double> inputValues;

		for(list<Link*>::iterator iter = inputs.begin(); iter != inputs.end(); iter++)
			inputValues->push_back((*iter)->getValue());

		value = (*inputFunc)(inputValues);
	}

	void CleanUp()
	{
		oldValue = value;
		value = 0.0;
	}

};

#pragma once

class Node;

class Link
{
public:

	Node* A;
	Node* B;

	int linkType;

	double (*inputFunc)(double);

	Link(Node* Alpha, Node* Beta, double (*inputFunction)(double))
	{
		if(Alpha)
			A = Alpha;
		if(Beta)
			B = Beta;
		if(inputFunction)
			inputFunc = inputFunction;
	}

	~Link(void)
	{
		A = B = NULL;
	}

	double getValue()
	{
		return (*inputFunc)(A->getValue());
	}
};