From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Representation clauses and records
Date: 1997/12/18
Date: 1997-12-18T00:00:00+00:00 [thread overview]
Message-ID: <dewar.882502759@merv> (raw)
In-Reply-To: u90tiqsmz.fsf@davidf-nt.mks.com
David said
<<I've seen other comments that indicate that the runtime cost of a
call to Unchecked_Conversion is going to be a function call of
some sort, and I have just one question: "Why?"
>>
No, you have not seen any such comments (at least I haven't). Probably the
point is that you misinterpreted comments about the semantics. Semantically,
UC *is* a function call, to which a *value* is passed, and a value is
returned (although there is permission to pass and return by reference in
Ada 95).
However, saying t
hat the semantics is that of a function call does not mean that there
will the "runtime cost of a call ...", that is a misunderstanding,
no of course not!
next prev parent reply other threads:[~1997-12-18 0:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <347000b1.4909762@news.geccs.gecm.com>
1997-11-21 0:00 ` Representation clauses and records Brian Nettleton
1997-11-21 0:00 ` Matthew Heaney
1997-11-21 0:00 ` Brian Nettleton
1997-11-24 0:00 ` Martin M Dowie
1997-11-25 0:00 ` Robert Dewar
1997-11-27 0:00 ` Martin M Dowie
[not found] ` <347a8dc3.3438484@news.geccs.gecm.com>
1997-11-25 0:00 ` Matthew Heaney
1997-12-16 0:00 ` Pascal MALAISE
1997-12-16 0:00 ` Larry Kilgallen
1997-12-17 0:00 ` Pascal MALAISE
1997-12-18 0:00 ` David J. Fiander
1997-12-18 0:00 ` Robert Dewar [this message]
1997-12-18 0:00 ` Tucker Taft
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