Virtual functions are one of the C++ features that I will not use on an MCU along with exceptions, RTTI and anything else that requires runtime support that’s invisible at compile time.

As I explained in the first article of this series on virtual functions, some readers claimed that my C++ classes for memory-mapped devices are flawed—not because they don't work, but because they don ...

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 ...