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From: JRowe@exua.exeter.ac.uk (John Rowe)
Newsgroups: comp.lang.fortran
Subject: Re: Questions about IF
Message-ID: <JROWE.91Jun26111343@exua.exua.exeter.ac.uk>
Date: 26 Jun 91 10:13:43 GMT
References: <scNB_TG00WBMQ0ykwM@andrew.cmu.edu>
	<1991Jun24.213601.11329@milton.u.washington.edu> <26384@lanl.gov>
Sender: JRowe@exua.exeter.ac.uk
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In-reply-to: jlg@cochiti.lanl.gov's message of 24 Jun 91 23:18:38 GMT

In article <26384@lanl.gov> jlg@cochiti.lanl.gov (Jim Giles) writes:

>   Actually, the standard does require that no optimization 
>   violate parenthesis.  So you can force the order of
>   evaluation any way you want:

>	 If (expr1 .and. (expr2.and.expr3)) then
>	    ...

>   This does the second '.and.' first.

But can it choose to evaluate:

	 If ((expr2.and.expr3) .and. expr1) then

I didn't see anything that said it couldn't.

John