From: Duncan Sands <baldrick@free.fr>
To: comp.lang.ada@ada-france.org
Cc: Randy Brukardt <randy@rrsoftware.com>
Subject: Re: Return_By_Reference or Return_By_Copy (GNAT bug?)
Date: Sat, 8 Jan 2005 14:06:02 +0100
Date: 2005-01-08T14:06:02+01:00 [thread overview]
Message-ID: <mailman.38.1105189579.527.comp.lang.ada@ada-france.org> (raw)
In-Reply-To: <H4ydndUFyuAmTUTcRVn-3A@megapath.net>
Hi Randy,
> > I was playing around with return by reference to see if it is possible to
> > get unserialized access to a protected variable using the Rosen trick (it
> is,
> > see example below, especially the protected object P in package C). Will
> this
> > be illegal in Ada 2005?
>
> Yes, it will.
it seems to be legal to have a protected procedure pass out an access to a
protected variable, allowing that variable to be accessed without serialisation.
I somehow expected this to be illegal... Is there any legitimate use for it?
Thanks,
Duncan.
next prev parent reply other threads:[~2005-01-08 13:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-31 11:07 Return_By_Reference or Return_By_Copy (GNAT bug?) Duncan Sands
2004-12-31 21:32 ` Randy Brukardt
2005-01-01 22:00 ` Duncan Sands
2005-01-03 23:11 ` Randy Brukardt
2005-01-04 4:20 ` Larry Kilgallen
2005-01-04 23:27 ` Randy Brukardt
2005-01-08 13:06 ` Duncan Sands [this message]
2005-01-10 21:05 ` Randy Brukardt
2005-03-08 16:12 ` Duncan Sands
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