Re: Generic formal access types

[tmoran@acm.org]

> Ok, it is not very useful to have an access type if you do not know its
> content, but the package implements a list and I am just storing them. I
> "need" that because I want to return the value "null" from a function in
> the generic package that returns "Access_Type".
  What's wrong with
generic
    type Element is (<>);
package Lists is
    type Node_Content_Ptr is access Element;