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From: sbdpumbaa@aol.com (bendel boy)
Newsgroups: rec.aviation.military,rec.aviation.military.naval,comp.lang.ada
Subject: Re: Ada (was Rival JSF teams fly final STOVL flights with flair,
 highlight  strengths)
Date: 9 Aug 2001 15:20:42 -0700
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Date: 2001-08-09T22:20:42+00:00
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"John Keeney" <jdkeeney@iglou.com> wrote in message news:<3b716b22_1@news.iglou.com>...
> Matthew V. Jessick <mjessick@gte.net> wrote in message
> news:3B6F73F9.15E98173@gte.net...
> > The    if (A=B) {    mistake   where B is copied into A and if non-zero
> > the if condition is true.
> 
> Actually, I've writen this code more than a few times, and meant it.
> Generally more in context of loops though.

But why would you want to mean this?

For my money, I would prefer the Algol approach:

if (0 = A := B) then

which would be interpreted as

(i) assign B to A -- assignment clause
(ii) test if A is zero -- logical clause

The C code makes use of a confusing short-cut, allowing confusion
between assignment, numbers, and booleans. Great for the experienced
programmer - fatal for the follow-on maintenance.