Which smart pointer in C++ retains shared ownership of an object through a pointer?
- auto_ptr
- unique_ptr
- weak_ptr
- shared_ptr
shared_ptr is a type of smart pointer in C++ that retains shared ownership of an object. This means multiple shared_ptr objects can own the same object, and the object will only be destroyed when the last shared_ptr owning it is destroyed or reset. This helps in preventing memory leaks and ensuring safer memory management.
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