C / C++ / MFC

Dennis L wrote:

My teacher has told me this project is going to be published with no fee in the internet.

Class A
{
    Class B
    {
        Class A
        {
            Class B
            {
                Class A
                {
                    .
                    . // etc...
                    .
                }
            }
        }
    }
}

// No need to include "class B"'s header.
 
class B; // Forward reference.
 
class A
{
...
private:
    ClassB &classB; // A reference to class B, not an instance.
};

// No need to include "class A"'s header.
 
class A; // Forward reference.
 
class B
{
...
private:
    ClassA &classA; // A reference to class A, not an instance.
};