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From: mdf@tut.cis.ohio-state.edu (Mark D. Freeman)
Newsgroups: comp.unix.questions
Subject: Re: Wierd Compilers
Message-ID: <1182@tut.cis.ohio-state.edu>
Date: Thu, 5-Nov-87 20:29:16 EST
Article-I.D.: tut.1182
Posted: Thu Nov  5 20:29:16 1987
Date-Received: Sun, 8-Nov-87 15:00:17 EST
References: <367@white.gcm> <18964@amdcad.AMD.COM> <44177@beno.seismo.CSS.GOV>
Reply-To: mdf@tut.cis.ohio-state.edu.UUCP (Mark D. Freeman)
Organization: StrongPoint Systems, Inc.; Columbus, OH. (guest of Ohio State U.)
Lines: 24

In <44177@beno.seismo.CSS.GOV> rick@seismo.CSS.GOV (Rick Adams) writes:
>Even a mediocre compiler should be able to recognize that
>	a++;
>is equivalent to
>	++a;
>if there is no assignment, etc.
>
>There is really no excuse for not making this trivial optimization. You should
>not have to depend on the user doing it.

Forgive a possibly stupid question, but in what way is there any
difference between a++ and ++a in the generated code, even with the
optimiser disabled.

Note:  I am not arguing with you, merely asking for more information.




-- 
Mark D. Freeman							(614) 262-3703
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