#include <iostream>
#include <memory>
using namespace std;
 
class B; // <=== forward declare
class C {
public:
  virtual B mymethod() const =0;
};
 
class A : public C {
public:
  B mymethod() const override;
//private:
  int myvar;
};
 
struct B {
  std::shared_ptr<C> pointer;
};
 
B A::mymethod() const {
  B instance;
  instance.pointer = std::make_shared<A>(*this);   //is this wrong?
  return instance;
}
int main() {
  A object;
  object.myvar=27;
  B instance = object.mymethod();
  //std::cout << instance.pointer->myvar;   //DOESN'T COMPILE: CANNOT DUMP !!
  std::cout << dynamic_pointer_cast<A>(instance.pointer)->myvar<<endl;
  cout<< instance.pointer.use_count()<<endl;
	return 0;
}

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