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: 103376,89cb2d7ffc7421c9
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local02.nntp.dca.giganews.com!nntp.megapath.net!news.megapath.net.POSTED!not-for-mail
NNTP-Posting-Date: Tue, 05 Sep 2006 18:50:49 -0500
From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
References: <xF4Hg.924524$084.568220@attbi_s22>
 <wccirk3zqm6.fsf@shell01.TheWorld.com> <ZpXKg.125106$FQ1.9495@attbi_s71>
 <wccejurbj6i.fsf@shell01.TheWorld.com> <fm5Lg.947292$084.573762@attbi_s22>
Subject: Re: Ripple effect
Date: Tue, 5 Sep 2006 18:52:17 -0500
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 6.00.2800.1807
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1807
Message-ID: <J66dnaB7A-nEkGPZnZ2dnUVZ_sednZ2d@megapath.net>
NNTP-Posting-Host: 64.32.209.38
X-Trace: 
 sv3-8uHyDDIrZNXLnbzLjy3THmxbxqo0c4TFbqpaWKORiuK2+mtysvIDj4Y2S11Ra3UibuuuyfrsTvaeCg4!UZQtqhZ7nb//ZDbmPXDD1CKhuFRfouBIBw8pkSPt361TV1UGsgHnt9KTnZF46sPamFriXijO6vs2!h3PNd5QogdQwGg==
X-Complaints-To: abuse@megapath.net
X-DMCA-Complaints-To: abuse@megapath.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: 1.3.32
Xref: g2news2.google.com comp.lang.ada:6458
Date: 2006-09-05T18:52:17-05:00
List-Id: <comp.lang.ada>

"Jeffrey R. Carter" <spam.not.jrcarter@acm.not.spam.org> wrote in message
news:fm5Lg.947292$084.573762@attbi_s22...
> It seems awkward. We're working on a project. I create package B, which
> has "with A;" on it. I thought B would need it, but I was wrong, and
> forgot to remove it. You're developing C and need to use B, so you have
> "with B;" on C. Then you realize you need to use A and write some code
> that references A. You forget to put "with A;" on C, but it compiles OK
> because B references A. Then I clean up B and remove the reference to A
> from it. Now C doesn't compile. That seems undesirable.

It *is* undesirable. Janus/Ada had a bug like that, and it caused no end of
trouble (especially porting code to other compilers, but also with unrelated
units suddenly going bad when something is changed). Of course, I recently
fixed the bug, and that turned out to be undesirable, too, because a lot of
things fail to compile now... Sigh.

                            Randy.