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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,23a8a20ef7e9405e
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news4.google.com!proxad.net!feeder1-2.proxad.net!news.in2p3.fr!in2p3.fr!news.ecp.fr!news.jacob-sparre.dk!pnx.dk!not-for-mail
From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: S'Is_nan or S'Is_inf?
Date: Mon, 19 Jul 2010 18:15:03 -0500
Organization: Jacob Sparre Andersen
Message-ID: <i22m9q$cd4$1@munin.nbi.dk>
References: <Xns9DB6AD1651560WarrensBlatherings@81.169.183.62>
NNTP-Posting-Host: static-69-95-181-76.mad.choiceone.net
X-Trace: munin.nbi.dk 1279581306 12708 69.95.181.76 (19 Jul 2010 23:15:06 GMT)
X-Complaints-To: news@jacob-sparre.dk
NNTP-Posting-Date: Mon, 19 Jul 2010 23:15:06 +0000 (UTC)
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 6.00.2900.5843
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579
X-RFC2646: Format=Flowed; Original
Xref: g2news1.google.com comp.lang.ada:12474
Date: 2010-07-19T18:15:03-05:00
List-Id: <comp.lang.ada>

"Warren" <ve3wwg@gmail.com> wrote in message 
news:Xns9DB6AD1651560WarrensBlatherings@81.169.183.62...
> Is there any is not-a-number or is-infinity test support in
> Ada05+ (for floats)?  Is there any being planned?

We considered it for Ada 2005 (see AI95-0315-1). It was abandoned because of 
the large impact on implementations and the weak demand (hardly any user 
requests).

John Barnes mentions this in the Ada 2005 Rational: 
http://www.adaic.com/standards/05rat/html/Rat-9-3-3.html

It wasn't resurrected for Ada 2012, so there won't be any change here.

BTW, GNAT seems to pass through a lot of IEEE stuff, thus you can write 
examples using that. Other Ada compilers (at least as of 2003-4 timeframe) 
vary widely in what is exposed (Janus/Ada only supports IEEE denormal 
numbers; everything else raises Constraint_Error before it is stored).

                                  Randy.