Re: How to make a generic controlled type?

[Ehud Lamm <mslamm@mscc.huji.ac.il>]

The following seems to compile fine on my system. What problem do you have
exactly?

with Ada.Finalization;

generic
   type Element_Type is private;

package Bug_List is

   type List is new Ada.Finalization.Limited_Controlled with private;

   -- Insert E at the current location.
   procedure Insert (L: in out List;
                     E: in     Element_Type);
private

   type Node;
   type Link is access Node;
   type Node is record V:Element_Type; N:Link; end record;
   type List is new Ada.Finalization.Limited_Controlled with
   record
      H:Link;
   end record;
   
   procedure Initialize(L:in out List);
   procedure Finalize  (L:in out List);
end;                     

By the way, just a day ago I submitted an example of a "simple controlled
list" to AdaPower (to accompany my example of a simple polymorphic list).
I don't think it is there yet but I guess it should be soon. You may want
to take it and start from there.

Ehud Lamm mslamm@mscc.huji.ac.il
http://purl.oclc.org/NET/ehudlamm <== My home on the web 
Check it out and subscribe to the E-List- for interesting essays and more!