From 3180135598019482531 X-Google-Thread: f78e5,b3d2c9e585ca6370 X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!news4.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local01.nntp.dca.giganews.com!nntp.speakeasy.net!news.speakeasy.net.POSTED!not-for-mail NNTP-Posting-Date: Thu, 04 May 2006 11:10:04 -0500 Return-Path: X-Authentication-Warning: mulga.cs.mu.OZ.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 Delivered-To: std-c++@ucar.edu From: johnchx2@yahoo.com Newsgroups: comp.std.c++ Subject: Re: Library issue 255 discussion Organization: http://groups.google.com Message-ID: <1146755362.562067.26730@i39g2000cwa.googlegroups.com> References: 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:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3,gzip(gfe),gzip(gfe) Complaints-To: groups-abuse@google.com Injection-Info: i39g2000cwa.googlegroups.com; posting-host=207.202.132.38; posting-account=1HxwpAwAAABlK5OZfZYCg5RQRtKiYFfE X-Virus-Scanned: amavisd-new at ucar.edu X-Virus-Scanned: amavisd-new at cs.mu.OZ.AU Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mulga.cs.mu.OZ.AU id k44F9bxU005238 Approved: Fergus Henderson , moderator of comp.std.c++ X-Virus-Scanned: amavisd-new at cs.mu.OZ.AU Date: Thu, 4 May 2006 11:08:11 CST Lines: 29 NNTP-Posting-Host: 65.182.171.162 X-Trace: sv3-LStsXfJzDCn+8no12sXd7c3B4zmpl8cAzqcvQZSsjHdow+QIHPaCwDQouGXm1Ljo2W0/zulO8Jqs89m!d2D9ertmb6kWuw0XM7/BPpAsgk6mblFXQOKjhOYEboiuCjpOkSRB/DVE+YhZ459C/Owdo9QXuw4G!5kKa/UBdVjbtiuxP4M8BUtf0TDyJ/XRzb6OzsTN0Jg== 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++:1779 "Krzysztof �elechowski" wrote: > In short, gbump and pbump should take an argument of type ptrdiff_t. Go to > to get the > full description. It appears that this Defect Report has never been posted > to this group. > > Martin Sebor comments in his original posting: > > > the change will not affect any user code unless it explicitly relies on > > the existing type of the functions (e.g., by taking their address). > > But this problem is void: user code cannot take the address of gbump because > gbump is a protected member. A user-defined class could inherit from basic_streambuf thus gaining access to its protected members. Moreover, such a class could re-declare such members as public, exposing them to the entire codebase. As Martin wrote, "Such a possibility is IMO quite remote." But it is possible and legal. A nice cautionary tale about the value of protected members.... --- [ 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 ]