recursive friend classes

Question

Is there any way around this:

class B;

class C { 
 public:
  C() { }
 private:
  int i;
  friend B::B();
};

class B { 
 public:
  B() { }
 private:
  int i         


        

Answer 1

Since you're very selective about friendship (access to specific member functions given to specific classes), the Attorney-Client Idiom may be what you need. I'm not sure how well this will work with constructors, though.