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From: fsset@bach.lerc.nasa.gov (Scott E. Townsend)
Newsgroups: comp.lang.fortran
Subject: Re: A Question of Style
Message-ID: <1991May22.124219.28296@eagle.lerc.nasa.gov>
Date: 22 May 91 12:42:19 GMT
Article-I.D.: eagle.1991May22.124219.28296
References: <12306@uwm.edu> <713@curly.appmag.com>
Sender: news@eagle.lerc.nasa.gov
Organization: Nasa Lewis Research Center ( Cleveland )
Lines: 43

In article <713@curly.appmag.com> pa@appmag.com (Pierre Asselin) writes:
>In article <12306@uwm.edu> jgd@uwm.edu writes:
>>
>>I have recently run into a FORTRAN compiler that exhibits, to my
>>mind, an annoying trait.  It complains voiciferously about statement
>>numbers that are defined on statements, but are otherwise unreferenced.
>>[...]
>>* Is this trait good or bad?  Desirable or undesirable?
>
>Good because, should you want to find unreferenced lines and clean up
>your code, a compiler can do it much better than you.
>
>>* Is the inability to suppress this specific message good or bad?
>
>ABOMINABLE.  Ruins the whole thing.  Better it weren't there at all.
>As you pointed out, the "spurious" labels could be referenced in
>explanatory comments.
>

Just a note for those trying to get rid of messages like these (my pet
peeve is lint -- a similar problem)

As long as you're on a UNIX-like system, and the errors get routed to
stdout try something like this:

        f77 flags files whatever | \
        sed -e "/spurious-message-1-text/d" \
	    -e "/spurious-message-2-text/d"

I'm no FORTRAN guru, but this technique works great for lint & similar
programs which don't allow you to turn off 'spurious' messages.

(I don't know how many '-e' expressions sed allows, but I've used up to four
 int the past, and they can be regular expressions!)

Of course this does nothing for the compiler's exit status, a bother if you're
in a makefile.

-- 
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Scott Townsend               |   Mail Stop: 5-11
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