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: Task interface and entries with aliased parameters Date: Wed, 28 Oct 2015 22:13:36 +0100 Organization: cbb software GmbH Message-ID: <1fnxzakbfygw9.sb1pibsw9s9s$.dlg@40tude.net> References: <98fcf225-fdec-401c-80b3-321e2ac65f6b@googlegroups.com> <1e09jksdqcfyv.8f80k06gl5ye$.dlg@40tude.net> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: j6IQVb9uobzjXrpQLDU2rQ.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:28102 Date: 2015-10-28T22:13:36+01:00 List-Id: On Wed, 28 Oct 2015 12:48:05 -0500, Randy Brukardt wrote: > Think container > interfaces, for example - the element type is almost always different. It is always same. The interface of a container element is being copyable (e.g. type T(<>) is private). For sets it also has "=". For ordered containers must include "<" etc. Other interfaces are irrelevant to the container. The question of constraining a container to keep only elements of certain *other* interfaces, e.g. basket of apples vs. one of oranges does not change the fact that apples and oranges are both fruits, could be put in a basket etc. They still share the "containment" interface. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de