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!reader02.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Discriminant of a limited type object Date: Tue, 27 Feb 2018 18:54:04 +0100 Organization: Aioe.org NNTP Server Message-ID: NNTP-Posting-Host: yZRtMzZmKCYxZ5GHo5ZYiA.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:52.0) Gecko/20100101 Thunderbird/52.6.0 Content-Language: en-US X-Notice: Filtered by postfilter v. 0.8.3 X-Mozilla-News-Host: news://news.aioe.org:119 Xref: reader02.eternal-september.org comp.lang.ada:50689 Date: 2018-02-27T18:54:04+01:00 List-Id: Never needed that, but it seems that there no way to change the discriminant of a definite object of limited type because there is no assignment. Say, we have an array of limited variant records with a defaulted discriminant. Then there is no way to fill that array ever, because element's discriminants are frozen. P.S. Yet another example why Ada needs proper constructors instead of limited returns... -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de