From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Fortran's Equivalence
Date: 1997/03/29
Date: 1997-03-29T00:00:00+00:00 [thread overview]
Message-ID: <dewar.859697187@merv> (raw)
In-Reply-To: mheaney-ya023680002903971519450001@news.ni.net
iMatthew Heaney says
<<This is bad advice Robert. The use of Unchecked_Conversion is clearly what
is required.>>
In response to my encouragement to use address clauses for overlay where
that is convenient.
Matthew, interesting opinion ... but not so interesting if you don't give
some backup to your claim.
First, I trust you realize that the negative view of overlap expressed
in the Ada 83 RM is COMPLETELY GONE in Ada 95. In the RM there is absolutely
no preference for the use of unchecked conversion over the use of address
overlays. You should use whichever of the two is more convenient.
Second, as you can see from the subject, the issue is mimicking the Fortran
equivalence statement. Address overlays are a very close semantic match
for equivalence, so it makes sense to answer the question this way.
I am curious to wait for the justification you have for the above opinion!
next prev parent reply other threads:[~1997-03-29 0:00 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-03-25 0:00 Fortran's Equivalence Viqar Abbasi
1997-03-26 0:00 ` Tom Moran
1997-03-26 0:00 ` Michael F Brenner
1997-03-26 0:00 ` Larry Kilgallen
1997-03-28 0:00 ` Oliver Kellogg
1997-03-29 0:00 ` Matthew Heaney
1997-03-29 0:00 ` Robert Dewar
1997-04-01 0:00 ` Keith Thompson
1997-04-01 0:00 ` Robert Dewar
1997-04-01 0:00 ` Robert A Duff
1997-04-01 0:00 ` Robert Dewar
1997-04-04 0:00 ` Keith Thompson
1997-04-04 0:00 ` Robert Dewar
1997-04-07 0:00 ` Viqar Abbasi
1997-04-08 0:00 ` Charles H. Sampson
1997-04-08 0:00 ` Matthew Heaney
1997-04-09 0:00 ` Stephen Leake
1997-04-09 0:00 ` Robert Dewar
1997-04-10 0:00 ` Simon Wright
1997-04-10 0:00 ` Robert Dewar
1997-04-08 0:00 ` Robert Dewar
[not found] ` <1997Apr15.163103.27481@nosc.mil>
1997-04-16 0:00 ` Robert Dewar
1997-04-07 0:00 ` Keith Thompson
1997-04-07 0:00 ` Charles H. Sampson
1997-04-04 0:00 ` Keith Thompson
1997-04-04 0:00 ` Robert Dewar
1997-04-08 0:00 ` Keith Thompson
1997-04-07 0:00 ` Charles H. Sampson
1997-03-29 0:00 ` Robert Dewar
1997-03-26 0:00 ` Robert Dewar
1997-03-26 0:00 ` Robert A Duff
1997-03-29 0:00 ` Matthew Heaney
1997-03-29 0:00 ` Robert Dewar [this message]
1997-04-02 0:00 ` JP Thornley
1997-03-26 0:00 ` FORTRAN's Equivalence Nick Roberts
1997-03-28 0:00 ` Fortran's Equivalence Charles H. Sampson
1997-03-29 0:00 ` Matthew Heaney
1997-04-01 0:00 ` Charles H. Sampson
1997-03-29 0:00 ` Matthew Heaney
1997-03-29 0:00 ` Robert Dewar
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