What is the delete operator in C++?

What is the delete operator in C++?

The delete operator in C++ is used to deallocate memory that was previously allocated with new. It helps prevent memory leaks.

Can you explain how to use it with an example?

Sure! If you allocate memory like this: int* ptr = new int;, you can free it using delete ptr;.

What happens if I forget to use delete?

Forgetting to use delete can lead to memory leaks, where the allocated memory is not returned to the system, causing increased memory usage.

Are there any alternatives to using delete?

Yes, you can use smart pointers like std::unique_ptr or std::shared_ptr which automatically manage memory for you.