From: dennison@telepath.com
Subject: Re: Freeing Pointers to classwide types
Date: 1998/09/25
Date: 1998-09-25T00:00:00+00:00 [thread overview]
Message-ID: <6ug51i$t4u$1@nnrp1.dejanews.com> (raw)
In-Reply-To: 01bde866$1be8ed00$5330ea9e@UKP014459.logica.co.uk
In article <01bde866$1be8ed00$5330ea9e@UKP014459.logica.co.uk>,
"Bob Fletcher" <fletcherr@logica.com> wrote:
> Tom Moran <tmoran@bix.com> wrote in article
> <360b26a1.41575272@SantaClara01.news.InterNex.Net>...
> > Of course one
> > would also hope
> > procedure something(....) is
> > type ptr is access ....
> > p : ptr: := new ...
> > ...
> > end something
> > to free the memory pointed to by 'p' when it leaves procedure
> > something.
>
> Really? Isn't the object that is created by the 'new' keyword similar in
> nature to a C++ 'heap' variable, in that although the pointer may go out of
> scope the object will not, and needs to be explicitly destroyed?
Once the access *type* goes out of scope, any ptr variable you ever could have
assigned the pointer to (without using unchecked programming) is gone as well.
Ada compilers are free to deallocate the memory then.
How many of them actually *do* that, I'm not sure...
--
T.E.D.
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next prev parent reply other threads:[~1998-09-25 0:00 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-09-24 0:00 Freeing Pointers to classwide types joecool
1998-09-25 0:00 ` alan walkington
1998-09-25 0:00 ` Tom Moran
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` Tom Moran
1998-09-25 0:00 ` dewarr
1998-09-26 0:00 ` Tom Moran
1998-09-26 0:00 ` dewarr
1998-09-26 0:00 ` Tom Moran
1998-09-27 0:00 ` dewarr
1998-09-27 0:00 ` Tom Moran
1998-09-28 0:00 ` dewarr
1998-09-28 0:00 ` Tom Moran
1998-09-28 0:00 ` dewarr
1998-09-28 0:00 ` Richard D Riehle
1998-09-28 0:00 ` Pat Rogers
1998-09-29 0:00 ` dewarr
1998-09-28 0:00 ` dewarr
1998-09-28 0:00 ` Tom Moran
1998-09-28 0:00 ` Tom Moran
1998-09-28 0:00 ` Brian Rogoff
1998-09-28 0:00 ` Pat Rogers
1998-09-28 0:00 ` Tom Moran
1998-09-28 0:00 ` Pat Rogers
1998-09-29 0:00 ` dewarr
1998-09-29 0:00 ` Tom Moran
1998-09-30 0:00 ` Tom Moran
1998-10-01 0:00 ` dewar
1998-10-01 0:00 ` Tom Moran
1998-10-01 0:00 ` Samuel Tardieu
1998-10-01 0:00 ` Tom Moran
1998-10-01 0:00 ` Tucker Taft
1998-10-01 0:00 ` Tom Moran
1998-10-02 0:00 ` dewarr
1998-10-02 0:00 ` Larry Kilgallen
1998-10-02 0:00 ` dewarr
1998-10-02 0:00 ` dennison
1998-10-02 0:00 ` dewarr
1998-10-01 0:00 ` dennison
1998-10-02 0:00 ` dewarr
1998-10-09 0:00 ` Matthew Heaney
1998-10-09 0:00 ` dennison
1998-10-09 0:00 ` Matthew Heaney
1998-10-01 0:00 ` dewarr
1998-10-01 0:00 ` Tom Moran
1998-10-01 0:00 ` dewarr
1998-10-09 0:00 ` Matthew Heaney
1998-09-25 0:00 ` Bob Fletcher
1998-09-25 0:00 ` Samuel Tardieu
1998-09-25 0:00 ` dennison [this message]
1998-10-09 0:00 ` Matthew Heaney
1998-10-12 0:00 ` Mats Weber
1998-10-12 0:00 ` Pat Rogers
1998-10-09 0:00 ` Matthew Heaney
1998-09-26 0:00 ` Simon Wright
1998-10-09 0:00 ` Matthew Heaney
1998-10-09 0:00 ` Niklas Holsti
1998-10-10 0:00 ` Matthew Heaney
1998-10-11 0:00 ` Niklas Holsti
1998-10-11 0:00 ` Matthew Heaney
-- strict thread matches above, loose matches on Subject: below --
1998-09-25 0:00 bpr5549
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