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=unavailable autolearn_force=no version=3.4.4
X-Received: by 2002:a24:5907:: with SMTP id
 p7-v6mr1456089itb.36.1526040717943;
        Fri, 11 May 2018 05:11:57 -0700 (PDT)
X-Received: by 2002:a9d:620d:: with SMTP id g13-v6mr258003otj.3.1526040717802;
 Fri, 11 May 2018 05:11:57 -0700 (PDT)
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!news.uzoreto.com!weretis.net!feeder6.news.weretis.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!u74-v6no435558itb.0!news-out.google.com!f20-v6ni419itd.0!nntp.google.com!v8-v6no419900itc.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Fri, 11 May 2018 05:11:57 -0700 (PDT)
In-Reply-To: <lypo22fwya.fsf@pushface.org>
Complaints-To: groups-abuse@google.com
Injection-Info: glegroupsg2000goo.googlegroups.com;
 posting-host=2a02:c7d:3c35:b000:325a:3aff:fe0f:37a5;
 posting-account=L2-UcQkAAAAfd_BqbeNHs3XeM0jTXloS
NNTP-Posting-Host: 2a02:c7d:3c35:b000:325a:3aff:fe0f:37a5
References: <ec0145a4-9698-41f2-bc70-964dc1850e50@googlegroups.com>
 <9af47760-e731-4cb5-a1a0-d63e31019ce5@googlegroups.com>
 <877eob1cc6.fsf@nightsong.com>
 <c9986056-cc3d-432b-839d-fa226eb6e5f8@googlegroups.com>
 <flk0a3Fpvi4U1@mid.individual.net>
 <5c9b9f90-884f-4de7-8663-d39a67949f4f@googlegroups.com>
 <lypo22fwya.fsf@pushface.org>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <c188332d-1f3c-419d-98d1-69448c69313c@googlegroups.com>
Subject: Re: AI12-0218: What is the portable representation clause for
 processing IETF packets on little-endian machines?
From: Lucretia <laguest9000@googlemail.com>
Injection-Date: Fri, 11 May 2018 12:11:57 +0000
Content-Type: text/plain; charset="UTF-8"
Xref: reader02.eternal-september.org comp.lang.ada:52266
Date: 2018-05-11T05:11:57-07:00
List-Id: <comp.lang.ada>

On Friday, 11 May 2018 08:55:28 UTC+1, Simon Wright  wrote:
> In the body,
> 
>    Big_Endian : constant Boolean
>      := System."=" (System.Default_Bit_Order, System.High_Order_First);
> 

Is it not possible to use derived types with different rep clauses to implement byte swapping on assignment, like the pack/unpack trick can?