Help with friend function

[MrViggy]

That doesn't matter. By trying to return the 'va_' member variable, the compiler needs to know the declaration of the class. Try it this way:

class A;

class B{
public:
	int getValue(A* pa);
};

class A {
friend int B::getValue(A* pa);
public:
	A():va_(1){}
private:
	int va_;
};


inline int B::getValue(A* pa) {
		return pa->va_;
	}

Viggy