comp.lang.ada
 help / color / mirror / Atom feed
From: Florian Weimer <fw@deneb.enyo.de>
Subject: Re: Hi-Lite high integrity showcase and overflow errors
Date: Tue, 04 Sep 2012 22:21:29 +0200
Date: 2012-09-04T22:21:29+02:00	[thread overview]
Message-ID: <878vcplet2.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: 5045278b$0$6576$9b4e6d93@newsspool3.arcor-online.net

* Georg Bauhaus:

> Or am I just incorrectly assuming thing and X * Y will make the tools
> complain fiercely about possible overflow?

The base range of My_Int could be sufficiently large so that the
multiplication wouldn't overflow, ever.  In this regard, integer types
aren't very portable.

On your architecture, you might see different behavior if My_Int is
defined like this:

   type My_Int is range 0 .. 40_000;

And the check is performed against 40_000 as well.

Eventually, you'll have to accept that a lot of Ada marketing material
is poorly prepared at best, and downright intellectually dishonest at
worst.  This is rather sad.



  parent reply	other threads:[~2012-09-12  0:17 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-03 21:56 Hi-Lite high integrity showcase and overflow errors Georg Bauhaus
2012-09-04  2:53 ` Shark8
2012-09-04  3:05   ` Shark8
2012-09-04  8:30     ` Georg Bauhaus
2012-09-04 18:45       ` Shark8
2012-09-04 20:21 ` Florian Weimer [this message]
2012-09-04 21:24   ` Shark8
2012-09-05  9:25   ` yannick.moy
2012-09-05  9:19 ` yannick.moy
2012-09-05 11:15   ` Georg Bauhaus
2012-10-03 10:47   ` Florian Weimer
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox