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Newsgroups: comp.lang.ada
Date: Mon, 13 Aug 2018 02:03:42 -0700 (PDT)
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Subject: Re: GNAT bug with assertions
From: AdaMagica <christ-usch.grein@t-online.de>
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Xref: reader02.eternal-september.org comp.lang.ada:54158
Date: 2018-08-13T02:03:42-07:00
List-Id: <comp.lang.ada>

Am Sonntag, 12. August 2018 20:51:51 UTC+2 schrieb Simon Wright:
> AdaMagica writes:
> 
> > Thank you all for your time to think about this.
> >
> > I'll send it in to AdaCore. Hopefully it will be correted next year in
> > the public version.
> 
> This is a somewhat artificial error, isn't it?
> 
>    function Maybe (X : Priv) return Subt;
>    ...
>    function Maybe (X : Priv) return Subt is (X);
>    ...
>    X := Maybe (C);   -- C is -1
> 
> works as we would have expected.

What is it that you expect here? What type is X? I didn't try with GNAT, but I would expect Maybe (C) to raise Assertion_Error independently of X.