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,FREEMAIL_FROM
	autolearn=ham autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,38159b1b5557a2e7
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2004-01-24 07:58:59 PST
Path: 
 archiver1.google.com!news2.google.com!newsfeed2.dallas1.level3.net!news.level3.com!crtntx1-snh1.gtei.net!cambridge1-snf1.gtei.net!news.gtei.net!bos-service1.ext.raytheon.com!cyclone.swbell.net!newsfeed1.easynews.com!easynews.com!easynews!elnk-pas-nf1!newsfeed.earthlink.net!pd7cy1no!pd7cy2so!shaw.ca!border1.nntp.ash.giganews.com!border2.nntp.sjc.giganews.com!border1.nntp.sjc.giganews.com!nntp.giganews.com!local1.nntp.sjc.giganews.com!nntp.comcast.com!news.comcast.com.POSTED!not-for-mail
NNTP-Posting-Date: Sat, 24 Jan 2004 09:58:55 -0600
Date: Sat, 24 Jan 2004 10:58:54 -0500
From: "Robert I. Eachus" <rieachus@comcast.net>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US;
 rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
X-Accept-Language: en-us, en
MIME-Version: 1.0
Newsgroups: comp.lang.ada
Subject: Re: Standard Ada Preprocessor
References: <bub5n8$kf5$1@atlantis.news.tpi.pl>   <400BDB7C.40100@noplace.com>
 <slrnc0nncv.4qq.randhol+valid_for_reply_from_news@k-083152.nt.ntnu.no>
 <400D2150.6000705@noplace.com> <nBdPb.5187$rW5.288435@news20.bellglobal.com>
 <400E72F9.8060501@noplace.com> <LNOdncWFbKUojpLdRVn-uQ@comcast.com>
 <buoikc$b2$1@a1-hrz.uni-duisburg.de> <400FD4F7.8050805@noplace.com>
 <buoonl$ktp$1@a1-hrz.uni-duisburg.de>
 <POTPb.16339$U77.1297733@news20.bellglobal.com>
 <bup6o5$jcc$1@a1-hrz.uni-duisburg.de>
 <nWcQb.20030$cQ6.820767@news20.bellglobal.com> <4011CF46.3040001@noplace.com>
 <10140vm4dkkr9b3@corp.supernews.com> <401272E3.4040506@noplace.com>
In-Reply-To: <401272E3.4040506@noplace.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Message-ID: <HI2dnbPWLMOiC4_dRVn-gg@comcast.com>
NNTP-Posting-Host: 24.147.77.160
X-Trace: 
 sv3-rz5H9rrArWCsqJliQ9NBFk2iR+WpJ//ibCs4+C/d0GluDZZQ+5sWEsHXV7qSQjFPx+Iyf3w5Z3S6Pyy!84th62KibF6GeXV3QnwFblUeNzjHvH44kv6GSfd4aKFrOdE2PqCnojAdpaur8g==
X-Complaints-To: abuse@comcast.net
X-DMCA-Complaints-To: dmca@comcast.net
X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers
X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint
 properly
X-Postfilter: 1.1
Xref: archiver1.google.com comp.lang.ada:4777
Date: 2004-01-24T10:58:54-05:00
List-Id: <comp.lang.ada>

Marin David Condic wrote:

> Rep clauses are ugly in the sense that "In A Perfect World" we'd want to 
> let the compiler worry about how to represent data. Inherently, they 
> make the code compiler and target dependent. By their very existence, 
> you can't just hand someone some body of code and say "Trust me. It will 
> compile & run on your machine..." Rep clauses are actually one of the 
> better arguments for needing conditional compilation. (Target A? Use 
> this rep! Target B? Use that one!)

Somebody wrote an article (for Ada Letters I think) on how to write 
representation specifications that are legal (and identical!) for 
bigendian and little endian hardware.  Anyone remember it?  I tend now 
to target only x86 family machines, where MMX, 3dNow!, SSE, and SSE2 
give me enough headaches. ;-)

-- 
                                           Robert I. Eachus

"The war on terror is a different kind of war, waged capture by capture, 
cell by cell, and victory by victory. Our security is assured by our 
perseverance and by our sure belief in the success of liberty." -- 
George W. Bush