What are the best practices for using smart pointers in C++?

What are the best practices for using smart pointers in C++?

When using smart pointers in C++, prefer std::unique_ptr for exclusive ownership and std::shared_ptr for shared ownership.

Can you explain when to use std::weak_ptr?

std::weak_ptr is used to break circular references in shared ownership scenarios, preventing memory leaks.

What are the performance implications of using smart pointers?

Smart pointers can introduce some overhead compared to raw pointers, but they help manage memory automatically, reducing leaks.

Are there any common pitfalls to avoid with smart pointers?

Yes, avoid mixing raw pointers and smart pointers, and be cautious with shared ownership to prevent dangling pointers.