The C++ virtual method call is faster on the Uno than both the switch-case and the function pointer versions. The additional function call and switch-case case processing took a toll for the Uno.

From our study of C++, it should be clear that, unlike class encapsulation and single inheritance, which were essentially free in C, polymorphism in C involves some complexity and overhead. In the ...

I have read in several books (including a book on using QT toolkit) warning about using C++'s virtual function because of performance penalty.But they are quite vague on why this is so. Can ...