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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Subject: Re: Ada202X : alternate syntax for ranged scalars
Date: Fri, 26 Apr 2013 09:55:08 -0700
Date: 2013-04-26T09:55:08-07:00	[thread overview]
Message-ID: <klebbd$aj0$1@dont-email.me> (raw)
In-Reply-To: <09e7fbc6-ea75-4660-8ece-25c5b096afd5@googlegroups.com>

On 04/26/2013 03:10 AM, Martin wrote:
> The default scalar declarations are 'closed ranges', i.e. include both upper and lower in the valid range.
>
> Sometimes we would like to specify a 'half open range', e.g. values of degree from 0.0 up to BUT NOT INCLUDING 360.0.
>
> I'm floating (pun intended) an alternative syntax for specify such ranges (or 'intervals')...
>
> type Degree is digits 15 range [0.0, 360.0); -- includes 0 but not 360

I dislike the proposal. It's far too easy to miss the subtle distinction between 
a bracket and a parenthesis.

-- 
Jeff Carter
"My legs are gray, my ears are gnarled, my eyes are old and bent."
Monty Python's Life of Brian
81



  parent reply	other threads:[~2013-04-26 16:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-26 10:10 Ada202X : alternate syntax for ranged scalars Martin
2013-04-26 10:35 ` Peter C. Chapin
2013-04-26 12:26 ` Eryndlia Mavourneen
2013-05-02  2:11   ` Randy Brukardt
2013-05-02 13:29     ` Eryndlia Mavourneen
2013-04-26 12:53 ` AdaMagica
2013-04-26 14:46   ` Shark8
2013-04-28  2:11   ` Stephen Leake
2013-04-26 16:55 ` Jeffrey Carter [this message]
2013-05-02 23:05 ` Jerry
2013-05-14 22:30 ` Martin
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