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 a regular pointer?

Unlike regular pointers, unique_ptr automatically deallocates the memory when it goes out of scope. This means you don't have to manually delete the object, reducing the risk of memory leaks.

Can I transfer ownership of a unique_ptr?

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

Are there any downsides to using unique_ptr?

One downside is that unique_ptr cannot be copied, only moved. This can be limiting in certain situations where you need to share ownership.