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: 109fba,b87849933931bc93 X-Google-Attributes: gid109fba,public X-Google-Thread: f43e6,b87849933931bc93 X-Google-Attributes: gidf43e6,public X-Google-Thread: fac41,b87849933931bc93 X-Google-Attributes: gidfac41,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: jsa@alexandria (Jon S Anthony) Subject: Re: What is wrong with OO ? Date: 1997/02/13 Message-ID: #1/1 X-Deja-AN: 218391516 Sender: news@organon.com (news) References: <5dopri$dei@news4.digex.net> Organization: Organon Motives, Inc. Newsgroups: comp.lang.c++,comp.lang.smalltalk,comp.lang.eiffel,comp.lang.ada,comp.object,comp.software-eng Date: 1997-02-13T00:00:00+00:00 List-Id: In article Ketil Z Malde writes: > jsa@alexandria (Jon S Anthony) writes: > > > Nick is correct here. This is a problem in C++ (along with > > friendship) as it requires prescience on the part of the developer > > and/or various maintenance problems: if you later decide it should be > > virtual, you have to go back and _change_ the source of the parent > > thereby changing the semantics in various other places. If you decide > > you need a new "friend" you have to go back and _change_ the source > > (which you may not even have accesss to!) > > Yes, I agree, the developer of a class needs to think about how the > class is going to be used in the future. Usually, I don't think this is > a great problem. Fair enough. How bad this is is going to be relative to a lot of other things (is it a library class?, does it define a well known and understood thing which is not likely to change, ...) /Jon -- Jon Anthony Organon Motives, Inc. Belmont, MA 02178 617.484.3383 jsa@organon.com