From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Design of cross referring types/classes and proper usage of containers Date: Tue, 4 Aug 2015 14:13:41 +0200 Organization: cbb software GmbH Message-ID: <186o8cox1jqwa.yahqsx8p0k84$.dlg@40tude.net> References: <12wxvkghwgpw3.k4qf1rqnppjb$.dlg@40tude.net> <8b424e66-337a-4943-91d1-e421312b5c95@googlegroups.com> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: enOx0b+nfqkc2k+TNpOejg.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Xref: news.eternal-september.org comp.lang.ada:27352 Date: 2015-08-04T14:13:41+02:00 List-Id: On Tue, 4 Aug 2015 04:43:25 -0700 (PDT), Serge Robyns wrote: > Is there any point of attention when using access variables to containers? > Any risk of dangling pointers because of operations on the elements of the > map (updates)? When objects are clearly scoped or known to be permanent or allocated in an arena with a defined life time there is nothing to worry about. In all other cases I use reference counted objects with hard references to them within the maps. In some rare cases it could be weak references as well. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de