Re: Extension of non-limited type needs limited component

[michael.jackson5@virgin.net (Mike)]

I wrote

> > How do I extend a non-limited tagged type to add a limited component?

Robert A Duff replied

> You don't.  ;-)  You can extend it with a pointer-to-limited component,
> however.  But your best bet may be to make the non-limited type
> limited.  Or make the component non-limited.

Unfortunately neither the base type nor the limited component are
under my control.
I have thought about the pointer-to-limited option but find that there
is no pointer type declared in the package that declares the limited
type and consequently there are no operations on the limited type that
take a pointer type.
Am I allowed to create my own pointer-to-limited type and de-reference
it for use later? Wouldn't the act of de-referenceing be an implicit
assignment?

Regards,
Mike.