From: kenner@lab.ultra.nyu.edu (Richard Kenner)
Subject: Re: Ada95/Mil-Std-1553 Problem (Long Post - Sorry About That)
Date: 1997/01/16
Date: 1997-01-16T00:00:00+00:00 [thread overview]
Message-ID: <5bk2sj$cj4$1@news.nyu.edu> (raw)
In-Reply-To: 1997Jan14.203917.1@eisner
In article <1997Jan14.203917.1@eisner> kilgallen@eisner.decus.org (Larry Kilgallen) writes:
>In article <97011417264268@psavax.pwfl.com>, "Marin David Condic, 561.796.8997, M/S 731-93" <condicma@PWFL.COM> writes:
>
>> Is there a way with tagged records to control the position/content
>> of any and all tag data? (In a manner that is reasonably close to
>> portable so that it's not dependent on, for example,
>I would think you could ensure it was at the end by using
>representation clauses for all the other elements of the records,
>essentially "filling up" the beginning so there is no space left
>for the tag data except at the end.
This isn't portable. There's explicit implementation permission to
reserve a particular space in a record for the tag (but not for any
other internal field). So a compiler is permitted to reject such a
rep clause (GNAT will, for example).
next prev parent reply other threads:[~1997-01-16 0:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-01-14 0:00 Ada95/Mil-Std-1553 Problem (Long Post - Sorry About That) Marin David Condic, 561.796.8997, M/S 731-93
1997-01-15 0:00 ` Larry Kilgallen
1997-01-16 0:00 ` Richard Kenner [this message]
-- strict thread matches above, loose matches on Subject: below --
1997-01-20 0:00 Marin David Condic, 561.796.8997, M/S 731-93
1997-01-12 0:00 Marin David Condic, 561.796.8997, M/S 731-93
1997-01-13 0:00 ` Amy Hartsough
1997-01-13 0:00 ` Michael F Brenner
1997-01-14 0:00 ` Brad Balfour
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