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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,8b8748382fcfacc1 X-Google-Attributes: gid103376,public From: Aidan Skinner Subject: Re: friend classes in ada95 Date: 2000/04/29 Message-ID: #1/1 X-Deja-AN: 617192368 X-NNTP-Posting-Host: skinner.demon.co.uk:158.152.76.219 References: <8dh37m$qef$2@wanadoo.fr> <3B5L4.1317$B43.116109@news.pacbell.net> <38FD1830.949F5E81@mindspring.com> <38FD1C9E.7C2B7756@research.canon.com.au> <8dldqi$mb7$1@nnrp1.deja.com> <38FE365D.31C893A6@acm.org> <8dmjsq$vm9$1@nnrp1.deja.com> <38FF3914.839040E2@earthlink.net> <8dp8ut$j9n$1@wanadoo.fr> X-Trace: news.demon.co.uk 957020369 nnrp-02:23284 NO-IDENT skinner.demon.co.uk:158.152.76.219 Organization: Oooh, arr, ambrosia! Say ooh arrr ambrosia! Newsgroups: comp.lang.ada X-Complaints-To: abuse@demon.net Date: 2000-04-29T00:00:00+00:00 List-Id: "Jean-Pierre Rosen" writes: > This seems to imply that an object is not "useful" unless you use > inheritance. > I'd like some evidence to support that claim (the fact that many gurus do it > is not supporting evidence to me). I'd tend to think that an object *shouldn't* be useful unless it's a descendent of a more abstract one. I like to have a base class which is abstract and then inherit from that, even if I've only got one descendant at the time and I don't forsee the need for any more. It saves having to rework stuff later. - Aidan -- http://www.reality.co.uk/ http://www.skinner.demon.co.uk/aidan/ "I could always suspend a few hundred accounts and watch what happens"