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From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Re: Hi-Lite high integrity showcase and overflow errors
Date: Tue, 04 Sep 2012 22:21:29 +0200
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Date: 2012-09-04T22:21:29+02:00
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* 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.