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: fac41,b87849933931bc93 X-Google-Attributes: gidfac41,public X-Google-Thread: 103376,b87849933931bc93 X-Google-Attributes: gid103376,public X-Google-Thread: f43e6,b87849933931bc93 X-Google-Attributes: gidf43e6,public X-Google-Thread: 109fba,b87849933931bc93 X-Google-Attributes: gid109fba,public X-Google-Thread: 1108a1,b87849933931bc93 X-Google-Attributes: gid1108a1,public X-Google-Thread: 114809,b87849933931bc93 X-Google-Attributes: gid114809,public From: donh@syd.csa.com.au (Don Harrison) Subject: Re: OO, C++, and something much better! Date: 1997/01/09 Message-ID: #1/1 X-Deja-AN: 208866898 sender: news@syd.csa.com.au x-nntp-posting-host: dev50 references: <5b1ais$oev@wdl1.wdl.lmco.com> organization: CSC Australia, Sydney reply-to: donh@syd.csa.com.au newsgroups: comp.lang.c++,comp.lang.smalltalk,comp.lang.eiffel,comp.lang.ada,comp.object,comp.software-eng Date: 1997-01-09T00:00:00+00:00 List-Id: Mark A Biggar writes: :Of course there is nothing that requires :that the provided function realy be a less-than function (which is usefull :as providing a ">" instead reverses the order of the list) but Eiffel has the :same problem and there is no guarentee that a class derived from COMPARABLE :hasn't redefined "<" to do something else either. While it wouldn't be possible in this case, a level of confidence can be provided in other situations using Eiffel postconditions. Don. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Don Harrison donh@syd.csa.com.au