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From: L.Parkes@comp.vuw.ac.nz (Lloyd Parkes)
Newsgroups: comp.sys.ibm.pc.programmer
Subject: Re: post increment (was Best C Compiler)
Message-ID: <LLOYD.90Mar22092857@circa.comp.vuw.ac.nz>
Date: 21 Mar 90 23:28:57 GMT
References: <1722@geocub.greco-prog.fr> <1264@doitcr.doit.sub.org>
	<1990Mar19.175316.16898@Octopus.COM> <9873@wpi.wpi.edu>
	<9954@wpi.wpi.edu>
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Organization: Victoria University of Wellington, Wellington, New Zealand
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In-Reply-To: jhallen@wpi.wpi.edu's message of 21 Mar 90 06:21:09 GMT

Your code was:
> main()
> {
> int a=0;
> int *b= &a;
> printf("%d\n", (*b) + (a++) );
> }

I was always under the impression that while C defined operator
precedence, and operator associativity, it didn't define order of
evaluation for arithmetic. Hence GCC is simply evaluating the left
hand side first, which is completely legal. I don't write code like
that because I never know how it will turn out.

					Lloyd
Disclaimer: Well, I could be wrong.
--
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Lloyd	| lloyd@comp.vuw.ac.nz	  | "... I can gleek upon occasion." - 
Parkes	| ...!uunet!vuwcomp!lloyd | Nick Bottom
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