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,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.129.132.68 with SMTP id u65mr2361870ywf.47.1437569882861; Wed, 22 Jul 2015 05:58:02 -0700 (PDT) X-Received: by 10.140.96.137 with SMTP id k9mr43059qge.10.1437569882846; Wed, 22 Jul 2015 05:58:02 -0700 (PDT) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!feeder.eternal-september.org!usenet.blueworldhosting.com!feeder01.blueworldhosting.com!peer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!69no1241930qgl.1!news-out.google.com!4ni81757qgh.1!nntp.google.com!69no1241926qgl.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Wed, 22 Jul 2015 05:58:02 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=185.30.132.97; posting-account=hya6vwoAAADTA0O27Aq3u6Su3lQKpSMz NNTP-Posting-Host: 185.30.132.97 References: <29dd5458-f9ce-4db8-9128-8ab35a9ce5f8@googlegroups.com> <64bc671c-72e5-4924-b703-3b907c69949c@googlegroups.com> <877fq9uj6g.fsf@theworld.com> <65061686-5c8f-433b-9b11-9e228298158e@googlegroups.com> <87k2u96jms.fsf@jester.gateway.sonic.net> <06f8a6f9-d219-4d40-b9ac-8518e93839bd@googlegroups.com> <87y4io63jy.fsf@jester.gateway.sonic.net> <7a29d3e9-d1bd-4f4a-b1a6-14d3e1a83a4d@googlegroups.com> <87mvz36fen.fsf@jester.gateway.sonic.net> <2215b44f-8a89-47c6-a4c4-52b74d2dac45@googlegroups.com> <9e492c82-868d-43d3-a18a-38274400e337@googlegroups.com> <40184feb-4053-4ac3-8eaa-c3bd9cd8a77c@googlegroups.com> <10272577-945f-4682-85bc-8ad47f3653ae@googlegroups.com> <87si8i81k2.fsf@atmarama.net> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <80b4b143-b56d-471a-be4d-1042d9e2e07b@googlegroups.com> Subject: Re: If not Ada, what else... From: vincent.diemunsch@gmail.com Injection-Date: Wed, 22 Jul 2015 12:58:02 +0000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Received-Bytes: 3258 X-Received-Body-CRC: 4224286950 Xref: news.eternal-september.org comp.lang.ada:26980 Date: 2015-07-22T05:58:02-07:00 List-Id: Le mardi 21 juillet 2015 22:05:53 UTC+2, J-P. Rosen a =E9crit=A0: > Le 21/07/2015 20:51, Simon Wright a =E9crit : > > abstract class type A is > > procedure P1 (This : in out T) is abstract; > > end A; > >=20 > > class type T is new A with > > overriding procedure P1 (This : in out A); > > not overriding function F1 (This : A) return Integer; > > private > > V : Integer; > > end T; > >=20 > > etc etc; not a million miles from Ada as we know it. > And how would you make the difference between specific and class-wide > types? (A huge advantage of Ada over other OO models, IMHO) >=20 > --=20 > J-P. Rosen > Adalog > 2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX > Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00 > http://www.adalog.fr Hello Jean-Pierre, Simply by declaring an operation OUTSIDE=A0the class type declaration as : Procedure Class_Wide_Operation (Object : in out T, X : integer); Only primitive operations are in the class type declaration. This is very i= ntuitive since you can in a way "see" the dispatch table associated to the = record. Regards, Vincent