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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Community Input for the Maintenance and Revision of the Ada
 Programming Language
Date: Sun, 17 Sep 2017 14:51:11 +0200
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Xref: news.eternal-september.org comp.lang.ada:48170
Date: 2017-09-17T14:51:11+02:00
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On 2017-09-17 13:05, AdaMagica wrote:
>> Yes, AFAIK, for integer types I'Pos(X) = X.
> 
> 'Pos attribute result is of type universal_integer. Thus there is an
> implicit type conversion in the equality above.

Yes, but the point is that it might be somewhat perplexing to encounter that

    Integer'Pos(-1) = -1

It is clear what was the motivation behind this result. Yet a naive 
reader would rather expect

    Integer'Pos(-1) = -1 - Integer'First

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de