From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: Alternate to Unchecked_Conversion - Portable?
Date: 1999/02/23
Date: 1999-02-23T00:00:00+00:00 [thread overview]
Message-ID: <m3sobxfpwd.fsf@mheaney.ni.net> (raw)
In-Reply-To: 36d2638e.6427631@nntp.concentric.net
cjrgreen@concentric.net (Christopher Green) writes:
> It is primarily useful in situations in which alternative
> implementations end up causing a bitwise copy. If
> the object to be converted is large, or the conversion
> must be done many times, this can be a win.
A copy doesn't necessarily occur. If I use a constant declaration:
procedure Op (O : T) is
OO : constant TT := UC (O);
begin
then (I assume) there isn't any copy of the source object.
next prev parent reply other threads:[~1999-02-23 0:00 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-02-21 0:00 Alternate to Unchecked_Conversion - Portable? Steve Doiel
1999-02-21 0:00 ` Steve Quinlan
1999-02-22 0:00 ` robert_dewar
1999-02-21 0:00 ` Matthew Heaney
1999-02-22 0:00 ` Christopher Green
1999-02-23 0:00 ` Matthew Heaney [this message]
1999-02-23 0:00 ` Samuel Mize
1999-02-24 0:00 ` robert_dewar
1999-02-25 0:00 ` Nick Roberts
1999-02-25 0:00 ` robert_dewar
1999-02-26 0:00 ` Nick Roberts
1999-02-26 0:00 ` Matthew Heaney
1999-02-27 0:00 ` Nick Roberts
1999-02-24 0:00 ` robert_dewar
1999-02-23 0:00 ` Christopher Green
1999-02-25 0:00 ` robert_dewar
1999-02-24 0:00 ` Christopher Green
1999-02-25 0:00 ` robert_dewar
1999-02-26 0:00 ` Dale Stanbrough
1999-02-26 0:00 ` Robert A Duff
1999-02-23 0:00 ` Christopher Green
1999-02-25 0:00 ` robert_dewar
1999-02-24 0:00 ` Christopher Green
1999-02-25 0:00 ` robert_dewar
1999-02-25 0:00 ` dennison
1999-02-25 0:00 ` Christopher Green
1999-02-26 0:00 ` robert_dewar
1999-02-26 0:00 ` Christopher Green
1999-03-01 0:00 ` Nick Roberts
1999-03-01 0:00 ` dewar
1999-03-01 0:00 ` Nick Roberts
1999-02-26 0:00 ` Tom Moran
1999-02-26 0:00 ` robert_dewar
1999-02-26 0:00 ` Robert A Duff
1999-02-28 0:00 ` robert_dewar
1999-02-22 0:00 ` robert_dewar
1999-02-22 0:00 ` Samuel Mize
1999-02-22 0:00 ` Tom Moran
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