What are some use cases for shared_ptr in C++?

What are some use cases for shared_ptr in C++?

shared_ptr is useful for managing dynamic memory in C++. It helps in scenarios like resource sharing, avoiding memory leaks, and simplifying ownership semantics.

Can you give me an example of when to use shared_ptr?

Sure! If you have multiple objects that need to share ownership of a resource, like a database connection, shared_ptr allows them to do so without worrying about who will delete the resource.

What are the advantages of using shared_ptr over raw pointers?

The main advantages include automatic memory management, reference counting, and prevention of dangling pointers, which helps in writing safer code.

Are there any downsides to using shared_ptr?

Yes, shared_ptr has some overhead due to reference counting and can lead to circular references if not managed properly, which can cause memory leaks.

When should I avoid using shared_ptr?

Avoid using shared_ptr in performance-critical sections where the overhead is significant, or when you have a clear ownership model that can be managed with unique_ptr.