When should I use unique_ptr in C++?

What is unique_ptr in C++?

unique_ptr is a smart pointer in C++ that manages the lifetime of a dynamically allocated object, ensuring it is deleted when no longer needed.

When should I use unique_ptr instead of raw pointers?

You should use unique_ptr when you want to ensure that an object has a single owner and is automatically deleted when it goes out of scope.

Can unique_ptr be used for arrays?

Yes, but you should use std::unique_ptr<T[]> for arrays to ensure proper deletion of all elements.

What are the advantages of using unique_ptr?

The advantages include automatic memory management, prevention of memory leaks, and clearer ownership semantics.