Using final in C++ to improve performance - Sticky Bits - Powered by Feabhas

Dynamic polymorphism (virtual functions) is central to Object-Oriented Programming (OOP). Used well, it provides hooks into an existing codebase where new functionality and behaviour can (relatively) easily be integrated into a proven, tested codebase. Subtype inheritance can bring significant benefits, including easier integration, reduced regression test time and improved maintenance. However, using virtual functions in C++ brings a runtime performance overhead. This overhead may appear inconsequential for individual calls, but in a non-trivial real-time embedded application, these overheads may build up and [...]