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From: Ted Dennison<dennison@telepath.com>
Subject: Re: Size and pack
Date: Thu, 11 Oct 2001 13:49:58 GMT
Date: 2001-10-11T13:49:58+00:00	[thread overview]
Message-ID: <ashx7.24444$ev2.33038@www.newsranger.com> (raw)
In-Reply-To: 9ff447f2.0110100005.2503bb00@posting.google.com

In article <9ff447f2.0110100005.2503bb00@posting.google.com>, Adrian Hoe says...
..
>Why this happens? Can I use representation clause instead of pragma
>pack? If both methods work, which is the best approach and why?

Why doesn't really matter. If your types must be a certian size and/or your
record fields must be in a certian order for your program to work, then you
*must* use representation and size pragmas to force that. Not specifying sizes
and record field locations is in effect telling the compiler that you don't
really care how big it is or where it puts things. Even if it happens to work
out allright today, it might not upon your next compiler version upgrade or
software port.

---
T.E.D.    homepage   - http://www.telepath.com/dennison/Ted/TED.html

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  parent reply	other threads:[~2001-10-11 13:49 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-10  8:05 Size and pack Adrian Hoe
2001-10-10  8:59 ` Alfred Hilscher
2001-10-10  9:50   ` John McCabe
2001-10-11  6:36     ` Adrian Hoe
2001-10-11  8:55       ` John McCabe
2001-10-31  1:53         ` Robert Dewar
2001-10-31  1:50     ` Robert Dewar
2001-10-31  9:17       ` John McCabe
2001-10-31 11:58       ` Jeff Creem
2001-11-01  1:58         ` Adrian Hoe
2001-11-01  2:34           ` Jeff Creem
2001-11-01 14:58             ` Marin David Condic
2001-11-01  3:53           ` Matthew Heaney
2001-11-01 18:37             ` Jeff Creem
2001-11-02  3:39               ` Robert Dewar
2001-11-01  3:45         ` Jeffrey Carter
2001-11-01  6:00         ` Robert Dewar
2001-10-10  9:24 ` Pi
2001-10-10  9:27 ` Lutz Donnerhacke
2001-10-11  6:24   ` Adrian Hoe
2001-10-11  8:58     ` John McCabe
2001-10-11 13:20       ` Mark Johnson
2001-10-11 16:23         ` John McCabe
2001-10-11 16:00           ` Pat Rogers
2001-10-12  8:37             ` John McCabe
2001-10-28  1:30         ` Robert Dewar
2001-10-11  9:30     ` Lutz Donnerhacke
2001-10-11 10:12 ` Vincent Smeets
2001-10-11 10:19   ` Lutz Donnerhacke
2001-10-11 11:18     ` David C. Hoos, Sr.
2001-10-11 12:06       ` Lutz Donnerhacke
2001-10-11 13:49 ` Ted Dennison [this message]
2001-10-26  4:00 ` Smark
2001-10-26  6:14   ` tmoran
2001-10-26 17:51     ` Smark
2001-10-26 23:21       ` Jeffrey Carter
2001-10-26 23:39       ` tmoran
2001-10-29  1:01         ` Adrian Hoe
2001-10-29  2:21           ` tmoran
2001-10-29 10:42             ` Adrian Hoe
2001-10-29 23:15               ` tmoran
2001-10-29  9:52         ` Lutz Donnerhacke
2001-10-29 10:29           ` Larry Kilgallen
2001-10-29 10:50             ` Lutz Donnerhacke
2001-10-29 11:12               ` Larry Kilgallen
2001-10-31  2:02                 ` Robert Dewar
2001-10-31  2:00               ` Robert Dewar
2001-10-31  2:51                 ` Larry Kilgallen
2001-10-31  1:59           ` Robert Dewar
2001-10-31  1:57       ` Robert Dewar
2001-10-31  1:55   ` Robert Dewar
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