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From: "amado.alves" <amado.alves@netcabo.pt>
Newsgroups: comp.lang.ada
Subject: RE: Problem whith objects, access and abstract tagged private types
Date: Thu, 8 Jan 2004 14:51:29 -0000
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Date: 2004-01-08T14:51:29+00:00

<<
...
      type Item_Elmt is access all Item_Type'Class;
...
   function To_Item_Elmt (F : in Item_Type'Class) return Item_Elmt is
      My_Tag : constant Ada.Tags.Tag :=3D F'Tag;
   begin
      return new My_Tag' (F);
   end To_Item_Elmt;
>>

According to your own definition of Item_Elmt and To_Item_Elmt you must =
return an access value, not a Tag. Maybe you want to return an access to =
F. As it stands, you cannot, because F might be a value. If the actual =
parameter passed is always a variable then use mode in out for F. The =
return something along the lines of F'Access.