teo classes that reference each other

[bobby98762001]

I want to create two classes that contain member functions where each meber function references the other class
eg
#include "A.h"
Class A{
private:
int a;
public:
void func(B b){};
}

#include "B.h"
Class B{
private:
int b;
public:
void func(A a){};
}

I know something is needed to reference each other but i don't know what it is...can anyone help me. in the header files i also use #ifndef etc to avoid the same header file being added more than once.
what do i have to do to allow me to reference as shown above

 

[Salem]

> what do i have to do to allow me to reference as shown above
One of them will have to be a pointer or a reference to the other class, to break the cycle of mutual dependency.

Example

class B;  // Forward declaration of a class

class A{
 private:
  int a;
 public:
  void func(B &b){};
  void func2(B *b){};
};

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