What are the best practices for function overloading in C++?

What are the best practices for function overloading in C++?

Function overloading in C++ allows multiple functions with the same name but different parameters. Best practices include: 1. Keep function signatures distinct. 2. Use clear and descriptive names. 3. Avoid overloading based on return types alone. 4. Ensure that overloaded functions are logically related.

Can you give an example of good function overloading?

Sure! For instance, you might overload a function named add to handle both integers and doubles:

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

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

What should I avoid when overloading functions?

Avoid overloading functions that differ only by return type, as this can lead to ambiguity. Also, try not to overload functions with similar signatures that could confuse users.

Are there any performance implications with function overloading?

Generally, function overloading does not have significant performance implications. However, excessive overloading can lead to longer compile times and potential confusion in code maintenance.