Weak Pointer In C++

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In this video we will see what is the actual use of weak_ptr in c++. This is actually one of the smart pointer in c++.

NOTES:
0. If we say unique_ptr is for unique ownership and shared_ptr is for shared ownership then
weak_ptr is for non-ownership smart pointer.
1. It actually reference to an object which is managed by shared_ptr.
2. A weak_ptr is created as a copy of shared_ptr.
3. We have to convert weak_ptr to shared_ptr in order to use the managed object.
4. It is used to remove cyclic dependency between shared_ptr.

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