Let’s look at the C++ code used to test the timing to walk through inheritance and virtual functions. The parent is the class PinOutputAbstract . It represents an output pin on an Arduino: ...

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 ...

By declaring function as virtual in Base class and overriding that function in Derived class. // (Function signature should be same in Base and Dervied class) ... There are two types of virtual ...