generic question

["markww" <markww@gmail.com>]

Hi,

I've been going through ada tutorials, and am looking at the generics
support. I can't quite understand how to accomplish having a record
which has a generic data member. For example, something like:

    type NODE_REC is
        record
            unknown_data_type : generic;  -- not sure how to express
this in ada
            Next_Node : NODE_REC_PTR;
            Prev_Node : NODE_REC_PTR;
      end record;

I'd like to be able to store either an integer, a float, or some other
user defined record type in there so that this node record becomes a
container. Is this possible?

Thanks,
Mark