Re: When to use 'Class in a parameter list

["Marin David Condic" <marin.condic.auntie.spam@pacemicro.com>]

O.K. I think I've got my brain straight about that - maybe the type
conversion that I thought I needed only needed to occur within the child
package in order to force a call back to its parent routine. (Resolving an
otherwise ambiguous call.)

But that still leaves me a bit confused about when I want to make a
parameter of 'Class.

MDC
--
Marin David Condic
Senior Software Engineer
Pace Micro Technology Americas    www.pacemicro.com
Enabling the digital revolution
e-Mail:    marin.condic@pacemicro.com
Web:      http://www.mcondic.com/


"Vincent Marciante" <marciant_antispam@li.net> wrote in message
news:3B5CDBCA.5810@li.net...
>
> Assuming that Op is defined as a primative of Base_Type then
> a procedure
>
>    procedure Op (Base : in out Child_Type) ;
>
> automaticaly exists as a consequence of having derived
> Child_Type from Base_Type.
>
> This is the case for all derived types and has nothing
> to do with the taggedness of the types in question.