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

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

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

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

Sure! Here's a simple example:

int a = 10;
int* ptr = &a; // ptr now holds the address of a

And how do references work?

References are declared using the & symbol. For example:

int b = 20;
int& ref = b; // ref is now an alias for b

When should I use pointers instead of references?

Use pointers when you need to manage dynamic memory or when you need to represent 'no value' with a null pointer. References are safer and easier to use when you want to ensure a variable is always valid.