What is a unique_ptr in C++?

Can you explain what a unique_ptr is in C++?

Sure! A unique_ptr is a smart pointer in C++ that manages the lifetime of a dynamically allocated object. It ensures that there is only one unique_ptr instance pointing to the object, which helps prevent memory leaks.

How does unique_ptr differ from raw pointers?

Unlike raw pointers, unique_ptr automatically deallocates the memory when it goes out of scope, ensuring better memory management and safety.

Can I transfer ownership of a unique_ptr?

Yes, you can transfer ownership of a unique_ptr using the std::move function, which allows another unique_ptr to take over the resource.

Are there any limitations to using unique_ptr?

Yes, unique_ptr cannot be copied, only moved. This means you cannot have two unique_ptr instances pointing to the same object.