From -8812784058661491623 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,8113d2b4a1062c22 X-Google-Attributes: gidf78e5,public From: Jens Kilian Subject: Re: using declarations in derived class Date: 2000/03/01 Message-ID: #1/1 X-Deja-AN: 591394692 Approved: Fergus Henderson , moderator of comp.std.c++ X-Disclaimer: All opinions expressed herein are of personal nature and do not reflect the opinion of third parties. References: <1e6kpfp.8y76n5dxrieiN%firstian@nospam.bellatlantic.net> X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Complaints-To: abuse@demon.net X-Mail2News-Path: news.demon.net!mulga.cs.mu.oz.au X-Trace: mail2news.demon.co.uk 951847679 mail2news:15048 mail2news mail2news.demon.co.uk Organization: Agilent Technologies Deutschland GmbH X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-Bot-Bait: qux02@bar26.jota12.fritz45.to Newsgroups: comp.std.c++ firstian@nospam.bellatlantic.net (Joe Chan) writes: > I have a question about using declarations. In the good old days before > using declarations, there is such a thing called access declarations > that can be used in a derived class to adjust access to base class > names. In ARM, the rule states that access declarations cannot be used > to restrict access to a member that is accessible in the base class. > Does this rule still apply to using declarations? I looked in the > standard and couldn't find the section that discuss it. If this rule no > longer applies, what is the rationale for it, since client code can > always cast the derived class ptr to a base class ptr and access the > member. That is *exactly* the rationale for disallowing an access declaration which restricts access to a member. It wouldn't work. -- mailto:jjk@acm.org phone:+49-7031-464-7698 (HP TELNET 778-7698) http://www.bawue.de/~jjk/ fax:+49-7031-464-7351 PGP: 06 04 1C 35 7B DC 1F 26 As the air to a bird, or the sea to a fish, 0x555DA8B5 BB A2 F0 66 77 75 E1 08 so is contempt to the contemptible. [Blake] --- [ 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://reality.sgi.com/austern_mti/std-c++/faq.html ]