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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
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 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Weird behavior with modular type
Date: Tue, 07 Feb 2012 19:21:05 +0100
Organization: Ada @ Home
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Date: 2012-02-07T19:21:05+01:00
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Le Tue, 07 Feb 2012 19:06:55 +0100, Adam Beneschan <adam@irvine.com> a  =

=C3=A9crit:
>> Seems to me in both cases the expression on the right of "<" is
>> Universal_Integer. What compiler message did you get?
>
> If the argument on the right of "<" is a *static* Universal_Integer
> whose value is larger than 255, then an error message should be
> generated (4.9(35)).  Here, the expression is not static, so there
> shouldn't be an error; as I mentioned earlier, GNAT does give an error=

> which appears to me to be a compiler bug.

I believe too this is a compiler bug for the failure to compile, as you =
 =

confirm, I will submit a report (as an non=E2=80=91supported user).

I still can't explain the first and the second interpretation. In the  =

first case =E2=80=9C10 ** I=E2=80=9D seems to be interpreted as =E2=80=9C=
(10 ** I) mod 256=E2=80=9D and  =

=E2=80=9CNatural'Pos (10 ** I)=E2=80=9D seems not.

That's why I expecting an answer from the RM. But could not remmember  =

where such a thing is specified. So much different interpretation when  =

switching from a Natural to an Universal_Integer.

-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univers=
ity