* Frank Winter: > I think, its not possible to make use of the vtable with objects > living on the stack. This is not true. C++'s brand of polymorphism does not interact well with copying (due to slicing). Your examples stress this point. Put differently, you want to create an object of a type which is not known at compile-time. This is not directly possible in C++. Workarounds generally use the heap because unknown types have unknown sizes, and objects of unknown size don't mix well with stack allocation.
