Embedded C developers shy away from C++ out of concern for performance. The class construct is one of their main concerns. My previous article Code Craft – Embedding C++: Classes explored ...

VTABLE and Pointers to Functions in C Even though it’s called a “table,” the VTABLE isn’t typically implemented in C as an array but rather as a struct of pointers to the virtual functions, such as ...

Once more unto the breach, Dan tries to dispel the notion that C++ is a purely object-oriented language in which all classes must use virtual functions.

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 ...