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 10.236.87.73 with SMTP id x49mr14172622yhe.30.1401763469769;
 Mon, 02 Jun 2014 19:44:29 -0700 (PDT)
Path: 
 border1.nntp.dca.giganews.com!nntp.giganews.com!j5no692657qaq.1!news-out.google.com!k18ni1741qav.1!nntp.google.com!peer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post02.iad.highwinds-media.com!fx10.iad.POSTED!not-for-mail
From: Shark8 <OneWingedShark@gmail.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64;
 rv:32.0) Gecko/20100101 Thunderbird/32.0a1
MIME-Version: 1.0
Newsgroups: comp.lang.ada
Subject: Style Question: normal record vs discriminated null-record.
Message-ID: <hEajv.2899495$g45.2895635@fx10.iad>
X-Complaints-To: abuse@teranews.com
NNTP-Posting-Date: Tue, 03 Jun 2014 02:44:29 UTC
Organization: TeraNews.com
Date: Mon, 02 Jun 2014 20:44:24 -0600
X-Received-Bytes: 1197
X-Received-Body-CRC: 655876097
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Original-Bytes: 1218
Xref: number.nntp.dca.giganews.com comp.lang.ada:186709
Date: 2014-06-02T20:44:24-06:00
List-Id: <comp.lang.ada>

Ok, given some sort of alert-system (meaning there shouldn't be any/much 
in the way of value manipulation of those objects) is it preferable to 
use a discriminated null-record or a record with normal components?


     Type Grievousness is (Warning, Error);
     Type Circumstance is (Expired_Data, Bad_Request, Malformed_Data);

     Type Alert_1(Severity : Grievousness; Condition :  Circumstance) is
     null record;

     Type Alert_2 is record
         Severity  : Grievousness;
         Condition : Circumstance;
     end record;