What is the performance impact of function overloading in C++?

What is the performance impact of function overloading in C++?

Function overloading allows multiple functions with the same name but different parameters. However, it can impact performance due to increased complexity in function resolution at compile time.

Can you explain how the compiler resolves overloaded functions?

The compiler uses the function signature, which includes the function name and parameter types, to determine which function to call. It performs name mangling to differentiate between overloaded functions.

Does overloading affect runtime performance?

Generally, the impact on runtime performance is minimal, but excessive overloading can lead to longer compile times and potentially larger binary sizes.

Are there any best practices for using function overloading?

Yes, it's best to keep overloaded functions intuitive, limit the number of overloads for clarity, and avoid overloading based solely on return types.