How do I use std::unique_ptr in C++?

Can you explain how to use std::unique_ptr in C++?

Sure! std::unique_ptr is a smart pointer that manages the lifetime of a dynamically allocated object. It ensures that the object is deleted when the unique_ptr goes out of scope.

What are some advanced examples of using std::unique_ptr?

One advanced use is to create a unique_ptr to an array. You can do this using std::make_unique, like this: auto ptr = std::make_unique<int[]>(10);.

Can std::unique_ptr be used with custom deleters?

Yes, you can specify a custom deleter when creating a unique_ptr. For example: std::unique_ptr<MyClass, decltype(&myDeleter)> ptr(new MyClass, myDeleter);.

What happens if I try to copy a std::unique_ptr?

You cannot copy a std::unique_ptr because it is designed to have sole ownership of the object. Attempting to copy it will result in a compilation error.