comp.lang.ada
 help / color / mirror / Atom feed
From: Robert A Duff <bobduff@shell01.TheWorld.com>
Subject: Re: memory management
Date: 26 May 2005 08:10:40 -0400
Date: 2005-05-26T08:10:40-04:00	[thread overview]
Message-ID: <wccfywa2nnj.fsf@shell01.TheWorld.com> (raw)
In-Reply-To: 1131064.rs72P29t4t@yahoo.com

alex goldman <hello@spamm.er> writes:

> As I understood from reading the Ada tutorial for C/C++ programmers,
> "access" is essentially like C++ smart pointer,

No, Ada access types are just pointers -- no "smarts".
To make something like smart pointers, you can use
controlled types.

>... except that you don't need
> to do anything to dereference it.

Dereference of access types uses the syntax ".all", but it's allowed to
be implicit in most contexts (for example, X.Y means X.all.Y, if X
is an access value (pointer)).

> How will the following work:
> 
> Record A contains "access" to record B; 
> record B contains "access" to record A.
> 
> If I create an instance of one of them with "new", will it be destroyed when
> "access" to it goes out of scope?

No.

- Bob



  parent reply	other threads:[~2005-05-26 12:10 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-26  0:57 memory management alex goldman
2005-05-26  2:14 ` David C. Hoos, Sr.
2005-05-26 13:21   ` Steve
2005-05-26 18:40     ` alex goldman
2005-05-28  2:13       ` Steve
2005-05-28  5:19         ` Jeffrey Carter
2005-05-28 14:48           ` Steve
2005-05-26 18:47     ` Pascal Obry
2005-05-27 14:33   ` Martin Krischik
2005-05-26 12:10 ` Robert A Duff [this message]
2005-05-27 14:31   ` Martin Krischik
2005-05-28 11:44     ` Robert A Duff
2005-05-28 13:03       ` Simon Wright
2005-05-31 12:04         ` Robert A Duff
2005-06-02 15:42       ` Thomas Maier-Komor
2005-06-02 17:05         ` Robert A Duff
2005-06-03  1:41       ` Steve
2005-06-03 10:12         ` alex goldman
2005-06-13  4:01         ` Dave Thompson
  -- strict thread matches above, loose matches on Subject: below --
2005-04-19 20:30 Memory_Management Anh Vo
2005-04-19  1:39 Memory_Management Bini
2005-04-19  9:18 ` Memory_Management Duncan Sands
2005-04-20  1:06   ` Memory_Management Bini
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox