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=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f43e6,b87849933931bc93 X-Google-Attributes: gidf43e6,public X-Google-Thread: fac41,b87849933931bc93 X-Google-Attributes: gidfac41,public X-Google-Thread: 109fba,b87849933931bc93 X-Google-Attributes: gid109fba,public X-Google-Thread: 1108a1,b87849933931bc93 X-Google-Attributes: gid1108a1,public X-Google-Thread: 103376,b87849933931bc93 X-Google-Attributes: gid103376,public X-Google-Thread: 114809,b87849933931bc93 X-Google-Attributes: gid114809,public From: Eirik Mangseth Subject: Re: What is wrong with OO ? Date: 1997/01/03 Message-ID: <32CCE2FE.75BF@online.no>#1/1 X-Deja-AN: 207445828 references: <5ahqo6$gk6@news4.digex.net> <5aig7q$din@news.irisa.fr> content-type: text/plain; charset=us-ascii organization: EUnet Norway mime-version: 1.0 reply-to: emangset@online.no newsgroups: comp.lang.c++,comp.lang.smalltalk,comp.lang.eiffel,comp.lang.ada,comp.object,comp.software-eng x-mailer: Mozilla 3.0Gold (Win95; I) Date: 1997-01-03T00:00:00+00:00 List-Id: Jean-Marc Jezequel wrote: > > In article <5ahqo6$gk6@news4.digex.net>, ell@access2.digex.net (Ell) writes: > > ><<< Led (first or second) wrt the OO paradigm: Private data members, > >static resolution of overloaded functions, protected members, and multiple > >inheritance. Correct me if I'm wrong. Remember this is wrt the early > >'80's.>>> > > > >: 1) C++ has added nothing new that has not been pioneered elsewhere. > >: (Classes from Simula, multiple inheritance, genericty, were all > >: around before C++ adopted them) > > > >You only addressed one of my points (MI) and would you please tell me > >which OOPLs had MI before C++. > > Eiffel has multiple inheritance, genericity, exception handling, GC etc. since 1986. > > For the record: > Smalltalk has "Private data members", GC and all OO mechanisms at least since 1980 (in facts well before). > > Ada has static typing, information hiding, genericity, exception handling and > "static resolution of overloaded functions" officialy since 1983, but these > were there in the proposals long before. > > But as someone else has said, there is nothing wrong in using other's good ideas, > as long as they are credited. > > -- > Jean-Marc Jezequel Tel : +33 2 99847192 > IRISA/CNRS Fax : +33 2 99847171 > Campus de Beaulieu e-mail : jezequel@irisa.fr > F-35042 RENNES (FRANCE) http://www.irisa.fr/pampa/PROF/jmj.html And as Tom Peters once said: "There's nothing wrong with copying as long as the copy is an improvement on the original". Now, is C++ an improvement of the original ideas of OO?