Delegates are type safe function pointers *with an optional this pointer* thus no need to pass one round yourself. Obviously their utility is much enhanced in contract to C++ by virtue of being ...

Knowing how references really differ from pointers should help you decide when to use references and when to stick with pointers. In C++, references ...

So read on! Function Pointers In general, function pointers aren’t any more mysterious than data pointers: the main difference is that one references variables and the other references functions.

Is the *only* reason that pointers and references are used is to stop the machine having to copy the whole object when passing an argument to a function?

The C++ virtual method call is faster on the Uno than both the switch-case and the function pointer versions. The additional function call and switch-case case processing took a toll for the Uno.