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: 103376,9cccf6ef6149fdaa
X-Google-Attributes: gid103376,public
From: Robert A Duff <bobduff@world.std.com>
Subject: Re: Operators -> unit analysis
Date: 2000/01/08
Message-ID: <wccaemgh6uw.fsf@world.std.com>#1/1
X-Deja-AN: 570007181
Sender: bobduff@world.std.com (Robert A Duff)
References: <38620350.48F8FC08@gecm.com> <83u8l0$5i5$1@nnrp1.deja.com>
 <84rd2f$snm$1@nntp3.atl.mindspring.net> <t7aemmtz3b.fsf@calumny.jyacc.com>
 <84thof$9r3$1@nntp4.atl.mindspring.net> <387383D0.4EA02E95@earthlink.net>
 <850jiq$mad$1@nnrp1.deja.com> <3874D0BE.82F04763@Raytheon.com>
 <853lkg$tgj$1@nnrp1.deja.com> <wccln626ily.fsf@world.std.com>
 <38764aac_2@news1.prserv.net> <856hjt$v1i$1@nnrp1.deja.com>
Organization: The World Public Access UNIX, Brookline, MA
Newsgroups: comp.lang.ada
Date: 2000-01-08T00:00:00+00:00
List-Id: <comp.lang.ada>

Robert, please be careful with your quotes.  I didn't say the "Oh
dear..." -- Matt did.

- Bob

Robert Dewar <robert_dewar@my-deja.com> writes:

> In article <38764aac_2@news1.prserv.net>,
>   "Matthew Heaney" <mheaney@banet.net> wrote:
> > In article <wccln626ily.fsf@world.std.com> , Robert A Duff
> > <bobduff@world.std.com>  wrote:
> >
> > Oh dear, I'll probably get horribly flamed for saying so, but
> I disagree
> > with the Ada(83) decision to require that "and" and "or"
> operators
> > appearing within the same statement also require parenthesis.
> 
> 
> Can you really argue that depending on this makes things easier
> to read, I don't think so! And it is quite error prone. It is
> all too easy to write
> 
>   if asdfasdf > oiuyoiuyoiuy or asdfadsfadsf < oiuoiuyoiuyoiuy
>     and not junk
> 
> and be confused by the indentation. To me this was one of the
> sound decisions in Ada. The cost to the writer, extra parens.
> The benefit to the writer, avoiding bugs like the above. The
> benefit to the reader is clear.

- Bob