class template as a type

[Karl]

Chris Nicholson-Sauls Wrote:

> Jarrett Billingsley wrote:
> > "Frits van Bommel" <fvbommel at REMwOVExCAPSs.nl> wrote in message 
> > news:fct4r0$hl9$1 at digitalmars.com...
> >> Yes I did. I'm not quite sure how I managed to typo 'class' to 'function' 
> >> though...
> > 
> > It's understandable.  The keys are right next to each other. 
> > 
> > 
> 
> You have a [class] key on your keyboard!?  ...is that thing available on Amazon?
> 
> -- Chris Nicholson-Sauls

Hehehehe. Guys, back into the subject. The only problem implementing a base class is that anyone can create a custom class inherited from the base class, override methods, skip all the base class constructors and then add it to an array or pass it to a function. Then there seems to be no way to check if this custom class implements the class template.