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Article #161

Re: Look-ahead question

#161
From: Michael Stack
Date: Wed, 04 Oct 2006 18:30
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http://www.fortran.com/come_from.html

Mike

At 11:07 AM 10/4/2006 -0700, you wrote:
>Abe Kornelis wrote:
>>You state the D' attribute was designed especially for the
>>purpose I had in mind. Well - it does not test whether a field
>>will be defined - it only tests whether or not a field has been
>>defined prior to the D' attribute reference.
>>
>>This is a very useful feature, but in this case, I need to know
>>in advance whether or not invocation of the mapping macro
>>will or will not generate a given field. D' does not tell in advance,
>>not even in open code....
>
>If you can foretell the future, can you then take steps to alter it?
>Such a conundrum/paradox might be fun to ponder while under the
>influence of mind-altering chemicals. But, in the real world of
>assembler language programming, a "crystal ball" seems like an
>unreasonable request to me.
>
>--
>Edward E Jaffe
>Phoenix Software International, Inc
>5200 W Century Blvd, Suite 800
>Los Angeles, CA 90045
>310-338-0400 x318
>edjaffe@phoenixsoftware.com
>http://www.phoenixsoftware.com/
>




Michael Stack                 e-mail:   mstack@niu.edu
                               ear-mail: 1.815.753.9447
Computer Science Department   fax:      1.815.753.0342
Northern Illinois University  www:      http://mstack.cs.niu.edu
DeKalb, IL  60115             skype:    callto://mstack
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From: Michael Stack <mstack@niu.edu>
Newsgroups: bit.listserv.asm370
Subject: Re: Look-ahead question
Date: Wed, 4 Oct 2006 13:30:34 -0500
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