From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00,
	REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,91b14dfe22ec5b78
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news2.google.com!proxad.net!news.cs.univ-paris8.fr!newsfeed.vmunix.org!newsfeed01.sul.t-online.de!newsmm00.sul.t-online.de!t-online.de!news.t-online.com!not-for-mail
From: Martin Krischik <martin@krischik.com>
Newsgroups: comp.lang.ada
Subject: Re: Signed vs Natural/32-bits vs 31 bits
Date: Thu, 28 Oct 2004 09:53:28 +0200
Organization: None
Message-ID: <3180772.TNT8d03Rs9@linux1.krischik.com>
References: <35f054ea.0410250743.45a14771@posting.google.com>
 <Vhffd.2316$kM.2106@newsread3.news.pas.earthlink.net>
 <35f054ea.0410270735.7892ff30@posting.google.com>
Reply-To: martin@krischik.com
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7Bit
X-Trace: news.t-online.com 1098951761 01 21301 ZE2tXWxLPtMoqq2 041028 08:22:41
X-Complaints-To: usenet-abuse@t-online.de
X-ID: TnQTRBZBQeKEMmIqocbqQdWpz2-lIZ3JKPtLHK3CfFB+PtZcmpYkgO
User-Agent: KNode/0.8.0
Xref: g2news1.google.com comp.lang.ada:5785
Date: 2004-10-28T09:53:28+02:00
List-Id: <comp.lang.ada>

skidmarks wrote:

> David Hoos in a private communication indicated that the least
> significant bit was (indeed) deleted. What is confusing about this
> dialog is that I thought that 'Unchecked_Conversion' meant that all
> bits were used and the bits were converted to the 'new' type. Under
> this impression, my thought was that I'd have a 32-bit Natural number.
> What I seem to be told is that that is not accurate and that
> 'Unchecked_Conversion' takes less liberties than I'd hoped. Any idea
> why?

No. But the solution is clear:

type Natural is new Standart.Natural;
for Natural'Size use 32;

or

X : Natural := 0;
for X'Size use 32;

And you have 2 32 bit types. If you don't like confusion people then you can
use My_Natural as identifier ;-).

With Regards

Martin
-- 
mailto://krischik@users.sourceforge.net
http://www.ada.krischik.com