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=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: class wide iterable (and indexable) Date: Sat, 5 Jan 2019 21:18:11 +0100 Organization: Aioe.org NNTP Server Message-ID: References: <2a6929c5-72fa-4d84-953a-44ea4597ab38@googlegroups.com> NNTP-Posting-Host: i065DRYuysvTI4qVnaNkyg.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 X-Notice: Filtered by postfilter v. 0.8.3 Content-Language: en-US Xref: reader01.eternal-september.org comp.lang.ada:55201 Date: 2019-01-05T21:18:11+01:00 List-Id: On 2019-01-05 18:05, Jeffrey R. Carter wrote: > A major problem with programming by extension is that it requires > violating the S/W-engineering principle of locality. A principle that would require "+" operations (ARM 4.5.3) (Integer, Real, Complex etc) all implemented by the same body? Trilling, but evidently absurd. > S/W engineers don't willingly violate those principles, Some ignore separation of interface and implementation as "locality" would require, but majority, at least of Ada practitioners, I hope do not. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de