What is the difference between const references and pointers in C++?

What is the difference between const references and pointers in C++?

In C++, a const reference is an alias for an object that cannot be modified, while a pointer can point to different objects and can be modified.

Can you give me an example of when to use a const reference?

Sure! Use a const reference when you want to pass large objects to functions without copying them, ensuring they remain unchanged.

What about pointers? When should I use them?

Pointers are useful when you need dynamic memory allocation or when you want to modify the original object being pointed to.

Are there any downsides to using pointers?

Yes, pointers can lead to memory leaks if not managed properly, and they can also introduce complexity with pointer arithmetic.