What are the differences between unique_ptr and shared_ptr in C++?

Can you explain the differences between unique_ptr and shared_ptr in C++?

Sure! unique_ptr is a smart pointer that owns a dynamically allocated object exclusively, while shared_ptr allows multiple pointers to share ownership of the same object.

What happens when a unique_ptr goes out of scope?

When a unique_ptr goes out of scope, it automatically deletes the associated object, preventing memory leaks.

Can shared_ptr lead to memory leaks?

Yes, if there are circular references between shared_ptrs, they can prevent the reference count from reaching zero, leading to memory leaks.

When should I use unique_ptr over shared_ptr?

Use unique_ptr when you want sole ownership of an object and don't need to share it. It's more efficient and has lower overhead.