From: guerby@gnat.com (Laurent Guerby)
Subject: Re: Q: Ada.Unchecked_Deallocation
Date: 1996/07/20
Date: 1996-07-20T00:00:00+00:00 [thread overview]
Message-ID: <ws9zq4un5ni.fsf@schonberg.cs.nyu.edu> (raw)
In-Reply-To: dewar.837178582@schonberg
Robert> One: suppose we declare a type KLUNK that has a complex
Robert> finalize routine that frees a KLUNK and all its descendences.
Robert> Now if I have a type
Robert> type AKLUNK is access KLUNK
Robert> then when I allocate objects of type KLUNK using this access
Robert> type, they will be freed using by complex finalize routine
Robert> when I leave the program, and it is this global finalization
Robert> that I wish to avoid, but of course I still need a
Robert> finalization routine for cases where objects of type KLUNK are
Robert> allocated locally.
What about (in Ada 95 without extension):
type KLUNK_WITH_EMPTY_FINALIZE is new KLUNK with null record;
procedure Finalize (Obj : KLUNK) is
begin null; end Finalize;
And instead of applying the pragma, you declare objects of this new type.
A smart compiler can optimize away calls to such a Finalize subprogram.
--
Laurent Guerby <guerby@gnat.com>, Team Ada.
"Use the Source, Luke. The Source will be with you, always (GPL)."
next prev parent reply other threads:[~1996-07-20 0:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-07-11 0:00 Q: Ada.Unchecked_Deallocation David Morton
1996-07-12 0:00 ` Robert Dewar
1996-07-16 0:00 ` Robert I. Eachus
1996-07-21 0:00 ` Robert A Duff
1996-07-20 0:00 ` Laurent Guerby [this message]
1996-07-20 0:00 ` Robert Dewar
1996-07-21 0:00 ` Robert A Duff
1996-07-21 0:00 ` Robert A Duff
1996-07-21 0:00 ` Laurent Guerby
1996-07-12 0:00 ` Jon S Anthony
1996-07-12 0:00 ` Ron Thompson
1996-07-13 0:00 ` Robert Dewar
1996-07-21 0:00 ` Robert A Duff
1996-07-14 0:00 ` Andy Askey
1996-07-14 0:00 ` Robert Dewar
1996-07-27 0:00 ` Uri Shina
1996-07-30 0:00 ` Theodore E. Dennison
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