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: ...

He can have a pure virtual destructor and it needs the =0, but you still need to define it since the derived classes destructors call it.<BR><BR> [This message was edited by bouncingdaemon on ...

If you see Runtime error R6025 - Pure Virtual Function Call message when running an app, then one of these fixes is sure to help you.