Security Risk?

[Bill Baxter]

Manfred Nowak wrote:
> When a procedure gives a class instance for processing to a module mod
> 
>   class CPP{ int i; /+ ... +/}
>   auto d= new CPP;
>   d= mod.process( d);
> 
> that processing is currently able to hide additional data and methods 
> in that class instance.
> 
> Is somebody able to show that such hidden data and methods cannot be 
> used to endanger the whole system?
> 
> -manfred

What makes D special in this regard?  Can't you do it with C++ just as 
easily?  (Not really sure what you mean by 'hiding additional data in 
the instance', but every way I can think of would be just as possible in 
C++.)

--bb