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

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

In C++, references are aliases for variables, while pointers are variables that store memory addresses.

Can you give me an example of how to use both?

Sure! Here's a simple example:

int a = 10;
int &ref = a; // reference to a
int *ptr = &a; // pointer to a

In this case, ref is a reference to a, and ptr is a pointer to a.

Are there any advantages to using references over pointers?

Yes, references are generally safer and easier to use since they cannot be null and must be initialized when declared.

What about the use cases for pointers?

Pointers are useful for dynamic memory allocation, arrays, and when you need to modify the address of a variable.