When should I use const pointers in C++?

When should I use const pointers in C++?

You should use const pointers when you want to ensure that the pointer itself cannot be changed to point to another address, while still allowing the data it points to be modified.

Can you give me an example of a const pointer?

Sure! Here's an example: int value = 10; int* const ptr = &value; In this case, ptr is a const pointer, meaning it cannot point to another integer.

What about const pointers to const data?

A const pointer to const data means neither the pointer can change the address it points to, nor can the data be modified. For example: const int* const ptr = &value;.

Why is it important to use const pointers?

Using const pointers helps prevent accidental changes to the pointer or the data, improving code safety and readability.