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From: ags@s.cc.purdue.edu (Dave Seaman)
Newsgroups: comp.lang.fortran
Subject: Re: F8X response (long)
Message-ID: <2355@s.cc.purdue.edu>
Date: 27 Feb 88 23:49:54 GMT
References: <705@elxsi.UUCP> <44400017@hcx2> <2337@s.cc.purdue.edu> <7211@agate.BERKELEY.EDU>
Reply-To: ags@s.cc.purdue.edu.UUCP (Dave Seaman)
Organization: Purdue University
Lines: 24

In article <7211@agate.BERKELEY.EDU> jerry@violet.berkeley.edu.UUCP ( Jerry Berkman ) writes:
>The comparison to CDCs VSOS is not valid.  CMS users run in their own
>permanent files, but the Fortran OPEN can not refer to a general CMS name.
>In the CDC case, from what I read, the OPEN can reference all attached files,
>but jobs are not run in an environment with permanent user files defined.

On the contrary, CDC jobs ARE run in an environment with permanent user
files defined.  It's just that files are not permanent unless you say
that you want them to be permanent.

The comparison is perfectly valid.  CMS users cannot normally open
files by name unless they remember to issue a FILEDEF before running
the program.  VSOS users cannot normally open permanent files by name
unless they remember to ATTACH them before running the program.

In both cases, there are exceptions.  CMS users can issue FILEDEFS by
making a nonstandard system call within a program.  VSOS users can
ATTACH files by making a nonstandard system call within a program.

It's a standoff.

-- 
Dave Seaman	  					
ags@j.cc.purdue.edu