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:

#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 overload with different return types?

In C++, you cannot overload functions solely based on return type. The parameter list must differ. For example, int func() and double func() would cause a compilation error because they have the same name and parameter list.

Are there any limitations to function overloading?

Yes, some limitations include:

1. Overloading cannot be done based on return type alone.
2. Function signatures must differ in the number or type of parameters.
3. It can lead to ambiguity if not managed properly.