From 6465068467269820534 X-Google-Thread: f78e5,51456c3eb8f9490e X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news2.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local02.nntp.dca.giganews.com!nntp.speakeasy.net!news.speakeasy.net.POSTED!not-for-mail NNTP-Posting-Date: Thu, 17 Aug 2006 15:40:14 -0500 Return-Path: X-Authentication-Warning: mulga.csse.unimelb.edu.au: fjh set sender to devnull@stump.algebra.com using -f X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-Original-To: std-c++@mailman.ucar.edu Delivered-To: std-c++@mailman.ucar.edu From: "mark" Newsgroups: comp.std.c++ Subject: Re: Copy Constructor Confusion! Organization: http://groups.google.com Message-ID: <1155845943.564948.233640@75g2000cwc.googlegroups.com> References: <1155645873.296811.3890@74g2000cwt.googlegroups.com> <1155663179.843769.44420@b28g2000cwb.googlegroups.com> <4kh3o8Fc528lU1@individual.net> <1155753523.459377.147180@m79g2000cwm.googlegroups.com> <4kjo9uFcihf4U1@individual.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Complaints-To: groups-abuse@google.com User-Agent: G2/0.2 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6,gzip(gfe),gzip(gfe) Complaints-To: groups-abuse@google.com Injection-Info: 75g2000cwc.googlegroups.com; posting-host=207.135.74.34; posting-account=kmJZpwwAAADTaEqNJ8z_rfhCwbaAxYpY X-Virus-Scanned: amavisd-new at ucar.edu X-Virus-Scanned: amavisd-new at csse.unimelb.edu.au Approved: Fergus Henderson , moderator of comp.std.c++ X-Virus-Scanned: amavisd-new at csse.unimelb.edu.au Date: Thu, 17 Aug 2006 15:31:51 CST Lines: 39 NNTP-Posting-Host: 65.182.171.162 X-Trace: sv3-UdatVw0Ve5Tb2wUmTOkr0fxyMC3ARwIEoLCBiH7JbfivQh54e09Widt4gJqdGUgbZoWLNpOm2qEeuOy!zvPxHWbUIhbt8BPI+3PKtnmLwzCU0V3bHNrLa8nHr0aH9hC9pLJk0oF8hFmZMrPjxTQNFakf4Nw5!z5F0d7Z2I0z4lYJH0+ueaZe25PCGpMUJe8DDGDZ77g== X-Complaints-To: abuse@speakeasy.net X-DMCA-Complaints-To: abuse@speakeasy.net X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.32 Xref: g2news2.google.com comp.std.c++:3326 "Matthias Hofmann" wrote: > "mark" schrieb im Newsbeitrag > news:1155753523.459377.147180@m79g2000cwm.googlegroups.com... > > >> >> If it appears inside a member of a derived class, "protected" should > >> >> suffice. > >> > > >> > Really? > >> > >> Yes, see section 11/1: "A member of a class can be [...] protected; that > >> is, > >> its name can be used only by members and friends of the class in which it > >> is > >> declared, and by members and friends of classes derived from this class." > > > > You left off the important part of the sentence (see 11.5), which says: > > > > . Except when forming a pointer to member (5.3.1), the access must be > > through a pointer to, reference to, or object of the derived class > > iteself (or any class derived from that class) (5.2.5). > > Yes, that's true. A protected member can be accessed only if those > conditions you mentioned are also met. And since they can never be met for the snippet in question ("X x = X();", if you remember), the statement 'If it appears inside a member of a derived class, "protected" should suffice.' is in fact false. Mark Williams Mark Williams --- [ 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.comeaucomputing.com/csc/faq.html ]