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From: burkley@cod.NOSC.MIL (V. J. Burkley)
Newsgroups: comp.lang.fortran
Subject: Re: Duplicate names in formal parameter lists
Message-ID: <2385@cod.NOSC.MIL>
Date: 22 Oct 90 18:17:57 GMT
References: <11084@hubcap.clemson.edu>
Reply-To: burkley@cod.nosc.mil.UUCP (V. J. Burkley)
Distribution: usa
Organization: Naval Ocean Systems Center, San Diego
Lines: 16

In article <11084@hubcap.clemson.edu> mjs@hubcap.clemson.edu (m j saltzman) writes:
>I discovered an error in a FORTRAN program I was modifying, which amounts
>to the following:
>
>	SUBROUTINE FOO(X, [other parameters], X)
>	DOUBLE PRECISION X(N)
>
>	[rest of code]
>
...
	I have had a similar experience many years ago on an IBM PC.  In my case the calling routine did not have the same arguments at X when calling FOO.  
 What happend?  An intermittent error that was harder than hell to find.  I 
 don't know why compilers don't check for it, it seems that there is very 
 little benefit for allowing it to exist if it is legal in Fortran 77.

                                  -Joe Burkley