When should I use references in C++?

When should I use references in C++?

You should use references in C++ when you want to avoid copying large objects, or when you want to modify the original variable.

Can you give me an example of using references?

Sure! Here's a simple example:

void updateValue(int &ref) {
    ref += 10;
}

int main() {
    int num = 5;
    updateValue(num);
    // num is now 15
}

What are the advantages of using references over pointers?

References are generally safer and easier to use than pointers. They cannot be null and do not require dereferencing.

Are there any situations where I should avoid using references?

Yes, avoid using references when you need to represent optional values or when you want to point to different objects at different times.