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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: A Gnother Gnasty bug
Date: Sat, 07 Apr 2012 12:54:38 +0100
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Date: 2012-04-07T12:54:38+01:00
List-Id: <comp.lang.ada>

I don't think you needed all those levels to trigger the bug (and bug I
think it is, though the code is very very complex):

  s : I_Ptr := I_Ptr'(new I'class'(F(arg=> 42)));

  t : K := G(p_i => s);         <--- this is OK

  u : K :=
    G(p_i =>
        I_Ptr'
        (new I'class'           <--- Constraint_Error here
           (F(arg=> 42))));