shared_ptr is a reference counted c++ 11 smart pointer which supports shared ownership model. reference counted means it keeps track of how many smart pointers are pointing to the dynamically created object ( manged object ).  The managed object is destroyed when reference count becomes zero.

shared_ptr and weak_ptr c++ tutorial

  • An empty shared_ptr does not own any resources and has no control block. control block holds the reference count.
  • we can copy or assign a shared_ptr to another shared_ptr.


weak_ptr does not control life time of the managed object.

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