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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID
	autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,48bf593f723b7524
X-Google-Attributes: gid103376,public
From: Robert Dewar <robert_dewar@my-dejanews.com>
Subject: Re: Can I have an array of variant records?
Date: 1999/04/21
Message-ID: <7flglu$sth$1@nnrp1.dejanews.com>#1/1
X-Deja-AN: 469247357
References: <371c84fb.0@silver.truman.edu>
 <87aew3j899.fsf@bglbv.my-dejanews.com> <7fk8c6$mbe$1@nnrp1.dejanews.com>
 <371DC9BE.585254A6@wbkst21.mach.uni-karlsruhe.de> <7fkkob$t1p@hobbes.crc.com>
X-Http-Proxy: 1.0 x9.dejanews.com:80 (Squid/1.1.22) for client 205.232.38.14
Organization: Deja News - The Leader in Internet Discussion
X-Article-Creation-Date: Wed Apr 21 21:41:18 1999 GMT
Newsgroups: comp.lang.ada
X-Http-User-Agent: Mozilla/4.04 [en] (OS/2; I)
Date: 1999-04-21T00:00:00+00:00
List-Id: <comp.lang.ada>

In article <7fkkob$t1p@hobbes.crc.com>,
  "David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> wrote:
> The entire record must be assigned at once with an
> aggrgate expression --

(well not necessarily an aggregate, just some value of
the type ...)

But the thing to note here is that this rule is not some
kind of annoying arbitrary restriction, it is quite
fundamental. When you change the discriminant, you change
the contents of the record that are accessible, it is
therefore ESSENTIAL to assign the record contents at the
same time, otherwise you could get garbage values being
suddenly accessible.


-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/       Search, Read, Discuss, or Start Your Own