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From: Yukicanis <yukicanis@googlemail.com>
Newsgroups: comp.lang.ada
Subject: type access Parent'Class
Date: Mon, 21 Nov 2011 11:03:36 -0800 (PST)
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Date: 2011-11-21T11:03:36-08:00
List-Id: <comp.lang.ada>

Dear Group,

I'm new to Ada and currently playing around with its OOP features.
Now, I have the following source:

procedure Test is
  type Parent is tagged limited null record;
  type Parent_Access is access Parent'Class;
  A : access Parent'Class;
  B : Parent_Access;
  procedure Dyn_Disp(X : access Parent'Class) is
  begin
    A := X;
    B := X;
  end Dyn_Disp;
begin
  null;
end Test;

When I try to complie that with GNAT 4.6.1 I get the following error
message:

test.adb:9:10: expected type "Parent_Access" defined at line 3
test.adb:9:10: found type access to "Parent'Class" defined at line 6

which I don't really understand since type "Parent_Access" is type
access to Parent'Class, isn't it?

Thanks in advance.