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

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

Function overloading allows multiple functions with the same name but different parameters. For example, in a class Calculator, you could 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 show me a code snippet for that?

Sure! Here's a simple code snippet:

class Calculator {
public:
    int add(int a, int b) {
        return a + b;
    }
    double add(double a, double b) {
        return a + b;
    }
    int add(int a, int b, int c) {
        return a + b + c;
    }
};

This class demonstrates function overloading with different parameter types and counts.

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

If you call add with mixed types, like add(5, 3.5), the compiler will look for the best match. In this case, it will convert the integer to a double and call the add(double, double) version.

Are there any limitations to function overloading?

Yes, function overloading can lead to ambiguity if the parameters are too similar. For example, if you have add(int, double) and add(double, int), the compiler may not know which one to call if you pass a single int.