What are some examples of C++ functions?

Can you give me some examples of functions in C++?

Sure! In C++, a function is a block of code that performs a specific task. For example, here's a simple function that adds two numbers:

int add(int a, int b) {
    return a + b;
}

Would you like to see more examples or specific types of functions?

Yes, can you show me a function that calculates the factorial of a number?

Absolutely! Here's a recursive function to calculate the factorial of a number:

int factorial(int n) {
    if (n <= 1) return 1;
    return n * factorial(n - 1);
}

This function calls itself until it reaches the base case. Do you need help with anything else?

What about functions with default parameters?

Great question! Here's an example of a function with default parameters:

void greet(std::string name = "Guest") {
    std::cout << "Hello, " << name << "!";
}

In this case, if no name is provided, it will greet 'Guest'. Would you like to explore more about C++ functions?