From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>
Subject: Re: Standard missing a 'Negative' subtype?...
Date: Sat, 14 Sep 2013 20:28:35 -0700
Date: 2013-09-14T20:28:35-07:00 [thread overview]
Message-ID: <l139h6$19qq$1@adenine.netfront.net> (raw)
In-Reply-To: <7b66c649-3796-41ea-b734-a2b14d2dbac3@googlegroups.com>
On 09/14/2013 01:49 AM, Martin wrote:
> Why is there no "Negative" predefined subtype in package Standard?...
>
> An implicit substype, something like:
>
> subtype Negative is Integer range Integer'First .. -1;
>
> I would have thought this would fit nicely with 'Natural' and 'Positive'. Obviously not needed as often as those two,
> but when I finally did need it, it wasn't there!
Nor are there Non_Negative (Integer'First .. 0), Reasonable_String_Index (1 .. 256 [or something]), or many others one
could think of. Natural and Positive are used in the definition of other things in the ARM; nothing needed Negative (or
any other subtypes).
--
Jeff Carter
"Now go away or I shall taunt you a second time."
Monty Python and the Holy Grail
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next prev parent reply other threads:[~2013-09-15 3:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-14 8:49 Standard missing a 'Negative' subtype? Martin
2013-09-14 9:14 ` Dmitry A. Kazakov
2013-09-14 19:13 ` mockturtle
2013-10-01 2:45 ` J Kimball
2013-09-14 19:57 ` Shark8
2013-09-15 3:28 ` Jeffrey R. Carter [this message]
2013-09-15 7:36 ` Simon Wright
2013-09-15 16:07 ` Jeffrey R. Carter
2013-09-15 16:49 ` Martin
2013-09-15 17:51 ` J-P. Rosen
2013-09-16 17:44 ` Adam Beneschan
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