So in other words my comment should have said that: in C++ it is easy to create something that is either a null-reference or some other, much more unpredictable

So in other words my comment should have said that: in C++ it is easy to create something that is either a null-reference or some other, much more unpredictable, undefined thing. Well then! That just goes to show how much safer C++ references are than I had previously supposed.