From -109665355912950015 X-Google-Thread: f78e5,6f042a6ff823c6a0,start X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit From: stkim@yujinrobot.com ("Kim, Seungtai") Newsgroups: comp.std.c++ Subject: Relation of enermy(anti-friend) Date: Thu, 26 Aug 2004 19:26:13 GMT Organization: Korea Research Environment Open Network Lines: 48 Sender: mail2news@demon.net Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: NNTP-Posting-Host: news.news.demon.net X-Trace: news.demon.co.uk 1093548381 26788 158.152.254.254 (26 Aug 2004 19:26:21 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Thu, 26 Aug 2004 19:26:21 +0000 (UTC) X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 X-Priority: 3 X-Spam-Checker-Version: SpamAssassin 2.64-mulga_r1 (2004-01-11) on mulga.cs.mu.OZ.AU X-Spam-Status: No, hits=-1.7 required=5.0 tests=AWL,BAYES_00,PRIORITY_NO_NAME autolearn=no version=2.64-mulga_r1 X-MSMail-Priority: Normal X-Received: (from fjh@localhost) by mulga.cs.mu.OZ.AU (8.12.10+Sun/8.12.9/Submit) id i7QJQDZr010892; Fri, 27 Aug 2004 05:26:13 +1000 (EST) X-Path: comp-std-cpp-robomod!not-for-mail X-NNTP-Posting-Date: Thu, 26 Aug 2004 08:58:53 +0000 (UTC) X-Spam-Level: X-Delivered-To: std-c++@ucar.edu X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Newsreader: Microsoft Outlook Express 6.00.2800.1437 X-Newsgroups: comp.std.c++ Path: g2news1.google.com!news2.google.com!proxad.net!newsfeed.stueberl.de!news2.telebyte.nl!news.amigo.co.uk!news.clara.net!wagner.news.clara.net!194.159.246.34.MISMATCH!peer-uk.news.demon.net!kibo.news.demon.net!news.demon.co.uk!demon!stump.algebra.com!devnull Xref: g2news1.google.com comp.std.c++:2200 May be it just funny question. The friend makes that a function or class can access to invisible memebers with particular right. It works well for operator <<, >>, etc. In this point, the question arises. Why there is no enemy relation. Enermy relation means that a class or a function even can not see the public member of a enermy class if they are tied with enermy relation. For example, class X; class Y; class X { enermy class Y; public: X ( Y & ); // Ok: Y is normal relation class. }; class Y { public: Y( X & ) // Error: X designates the Y to enermy. }; I thinks that this kinds of relation are easily arised in real situation. Is there already consideration occured? If not, why this relation dose not considered in the Standard or... Any comments. Thanks. -- S Kim --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.jamesd.demon.co.uk/csc/faq.html ]