Array type conversion

[Manfred Nowak]

Thomas Kuehne wrote
> Below is a simplified sample:
> #    base  = derived; // <- this is the issue

That assignment above is totally useless, unless one wants to drop some 
data, that can only be hold by derived.

But if one drops some of that data, every access through derived might 
behave unpredictable.

The obvious fault is, that derived is not nulled immeditely after that 
assignment in order to prevent every further access.

Is that what the compiler is supposed to do automatically: null out the 
RHS as a side effect?

-manfred