What are some examples of function overloading in C++?

What are some examples of function overloading in C++?

Function overloading in C++ allows multiple functions to have the same name with different parameters. For example, you can have:

1. int add(int a, int b) - adds two integers.
2. double add(double a, double b) - adds two doubles.
3. int add(int a, int b, int c) - adds three integers.

Can you give me a code snippet for one of those examples?

Sure! Here's a simple code snippet demonstrating function overloading with the add function:

#include <iostream>
using namespace std;

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

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

int main() {
    cout << "Sum of integers: " << add(5, 10) << endl;
    cout << "Sum of doubles: " << add(5.5, 10.5) << endl;
    return 0;
}

What happens if I try to call add with different types?

If you call add with different types, C++ will try to find the best match. For example, calling add(5, 10.5) will result in a compilation error because there is no matching overloaded function for an int and a double.

Are there any limitations to function overloading?

Yes, function overloading can lead to ambiguity if the compiler cannot determine which function to call. Also, it cannot be based solely on return type.