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From: Sami Evangelista <sami.evangelista@wanadoo.fr>
Newsgroups: comp.lang.ada
Subject: generic packages
Date: Tue, 09 Jul 2002 15:03:35 +0200
Organization: Conservatoire National des Arts et Metiers
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Date: 2002-07-09T13:01:59+00:00
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hello everybody

i have declared a package generic_set like this :
-------------------------------------------------
generic
    type Element is private;
    with function "=" (E1, E2 : in Element) return boolean;
package Generic_Set is
    type Set_Record is private;
    type Set is private;
     .....
private
    type Set is access Set_record;
    type Set_record is record
       El : Element;
       Others_Els : Set;
    end record;
end Generic_Set;
-------------------------------------------------


now i want to declare a generic function which take a A set and return a 
B set according to a function wich take a A element and return B 
element. I have tried this in the generic_set.ads file, but gnat crashes 
(???):
--------------------------------------------------
generic
      with package a_set is new generic_set(<>);
      with package b_set is new generic_set(<>);
      with function a_to_b(A : in a_set.element) return b_set.element;
function a_set_to_b_set(the_set : in a_set.set) return b_set.set;
-------------------------------------------------


is there any solution ?

thanks for any help


Sami Evangelista
sami.evangelista@wanadoo.fr