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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Standard missing a 'Negative' subtype?...
Date: Sun, 15 Sep 2013 08:36:56 +0100
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Date: 2013-09-15T08:36:56+01:00
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"Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org> writes:

>             Natural and Positive are used in the definition of
> other things in the ARM; nothing needed Negative (or any other
> subtypes).

"because they are needed in other parts of the ARM" shouldn't be the
only criterion! "what users [i.e., we developers] would find useful"
should be considered too - otherwise we wouldn't have Ada.Containers,
for example.

That said, Negative seems to come well below the bar.