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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: GNAT GPL 2013 bug?
Date: Fri, 09 Aug 2013 17:03:59 +0100
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Date: 2013-08-09T17:03:59+01:00
List-Id: <comp.lang.ada>

"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:

>    type Q is tagged null record;
>    procedure P (X : access Q) is null;
>
>    Y : access Q := null;
> begin
>    P (Y); -- This is not OK?

dmitry.ada:9:07: warning: null value not allowed here
dmitry.ada:9:07: warning: "Constraint_Error" will be raised at run time
...
raised CONSTRAINT_ERROR : dmitry.ada:9 access check failed