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std::shared_ptr cyclic references

Anonymous
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Cyclic reference with std::shared_ptr

#include <iostream>
#include <type_traits>
#include <memory>
struct Node { // Binary tree
Node() { std::cout << "c'tor" << std::endl; }
~Node() { std::cout << "d'tor" << std::endl; }
std::weak_ptr<Node> parent;
std::shared_ptr<Node> left;
std::shared_ptr<Node> right;
};
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