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=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,657568723e59e45b X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,UTF8 Received: by 10.224.138.142 with SMTP id a14mr5957962qau.4.1350915422886; Mon, 22 Oct 2012 07:17:02 -0700 (PDT) Received: by 10.224.186.81 with SMTP id cr17mr568727qab.1.1350915421856; Mon, 22 Oct 2012 07:17:01 -0700 (PDT) Path: r17ni43198841qap.0!nntp.google.com!x14no4198807qar.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Mon, 22 Oct 2012 07:17:01 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=195.182.34.201; posting-account=bMuEOQoAAACUUr_ghL3RBIi5neBZ5w_S NNTP-Posting-Host: 195.182.34.201 References: <23619b66-91a4-4786-b210-8012e648e631@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: Subject: Re: Basic issue with dotted notation and tagged types From: Maciej Sobczak Injection-Date: Mon, 22 Oct 2012 14:17:02 +0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Date: 2012-10-22T07:17:01-07:00 List-Id: W dniu poniedzia=C5=82ek, 22 pa=C5=BAdziernika 2012 13:45:29 UTC+2 u=C5=BCy= tkownik Niklas Holsti napisa=C5=82: > Just for > example, suppose there is a class hierarchy, and Ob is an object of some > derived type, and Foo some primitive operation of this derived type. The > meaning of Ob.Foo then depends on whether or not some level of the > hierarchy adds a component Foo to the type, and whether the component is > visible or not. Yuck! I believe this falls in the following description: http://en.wikipedia.org/wiki/Fragile_base_class --=20 Maciej Sobczak * http://www.msobczak.com * http://www.inspirel.com