What are some examples of using const pointers in C++?

Can you explain what const pointers are in C++?

Sure! A const pointer is a pointer that cannot change the address it points to after it has been initialized.

Can you give me an example of how to use a const pointer?

Absolutely! Here's an example:

int value = 10;
int* const ptr = &value;
*ptr = 20; // This is allowed, changing the value at the address.
// ptr = nullptr; // This would cause an error, as ptr cannot change.

What happens if I try to change the pointer itself?

If you try to change the pointer itself, you'll get a compilation error because const pointers cannot be reassigned.

Are there any other types of pointers I should know about?

Yes, there are also pointers to const, which allow you to change the pointer but not the value it points to.