Path: utzoo!attcan!uunet!samsung!emory!mephisto!prism!sun13!VSSERV.SCRI.FSU.EDU!mayne
From: mayne@VSSERV.SCRI.FSU.EDU (William (Bill) Mayne)
Newsgroups: comp.lang.fortran
Subject: Re: Function calls in the middle of subroutine CALLs? -- Is it standard fortran 77 ????
Keywords: side effects, statement order, optimization
Message-ID: <286@sun13.scri.fsu.edu>
Date: 20 Jul 90 16:27:23 GMT
References: <BURLEY.90Jul19041717@world.std.com> <57505@lanl.gov> <BURLEY.90Jul19220745@world.std.com>
Sender: news@sun13.scri.fsu.edu
Followup-To: mayne@nu.cs.fsu.edu (Bill Mayne)
Organization: SCRI, Florida State University
Lines: 11

In article <BURLEY.90Jul19220745@world.std.com> burley@world.std.com (James C Burley) writes:
>
>I guess the real issue is that Fortran is a language primarily for the
>expression of mathematical formulas, in which side effects and operation
>ordering do not play a role.  When you care about side effects and ordering,
>you are told to use separate statements (or other sequence points...
>
Correct me if I am wrong (I am new to high performance computing), but
isn't there risk that an optimizing compiler will rearrange even separate
statements in some cases. Relying on side effects seems quite dangerous.
Your explanation was so good I'd like to hear more. Regards.