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Path: utzoo!linus!philabs!prls!amdimage!amdcad!decwrl!spar!freeman
From: freeman@spar.UUCP (Jay Freeman)
Newsgroups: net.unix,net.lang.c
Subject: Re: DON'T EVER DO THIS!!!
Message-ID: <440@spar.UUCP>
Date: Fri, 2-Aug-85 16:30:50 EDT
Article-I.D.: spar.440
Posted: Fri Aug  2 16:30:50 1985
Date-Received: Sun, 4-Aug-85 06:20:16 EDT
References: <536@aicchi.UUCP>
Reply-To: freeman@max.UUCP (Jay Freeman)
Distribution: net
Organization: Schlumberger Palo Alto Research, CA
Lines: 17
Xref: linus net.unix:4659 net.lang.c:5355

[]

In article <536@aicchi.UUCP> ignatz@aicchi.UUCP (Ihnat) writes:

> [ ... ]  DON'T *EVER* DO THIS!!
>	 .
>	 .
>	 .
>     while (--count &&
>            (!(rand_mod(prob)) ||
>             (obj = occupant[y=(curkl->posy+curkl->vely+YSIZE00)%YSIZE]
>                            [x=(curkl->posx+curkl->velx+XSIZE00)%XSIZE]) && 
> [ ... ]

This all looks obvious to me ... except ... in the first line of code ...
I can never remember what the "--" operator is supposed to do ...  :-)
-- 
Jay Reynolds Freeman (Schlumberger Palo Alto Research)(canonical disclaimer)