//
// 5.3.weak.ptr.cpp
// chapter 05 start pointers and memory management
// modern c++ tutorial
//
// created by changkun at changkun.de
// https://github.com/changkun/modern-cpp-tutorial
//


#include <iostream>
#include <memory>

class A;
class B;

class A {
public:
    std::shared_ptr<B> pointer;
    ~A() {
        std::cout << "A was destroyed" << std::endl;
    }
};
class B {
public:
    std::shared_ptr<A> pointer;
    ~B() {
        std::cout << "B was destroyed" << std::endl;
    }
};
int main() {
    std::shared_ptr<A> a = std::make_shared<A>();
    std::shared_ptr<B> b = std::make_shared<B>();
    a->pointer = b;
    b->pointer = a;
    
    return 0;
}