From 4865565162636141645 X-Google-Thread: f78e5,33c1ffa960d55699 X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII Path: g2news1.google.com!news4.google.com!newshub.sdsu.edu!npeer.de.kpn-eurorings.net!feeder1.cambrium.nl!feed.tweaknews.nl!195.238.0.32.MISMATCH!skynet.be!peer-uk.news.demon.net!kibo.news.demon.net!news.demon.co.uk!demon!stump.algebra.com!devnull From: musiphil@bawi.org (Seungbeom Kim) Newsgroups: comp.std.c++ Subject: Re: Suggestion: parent Date: Wed, 11 May 2005 06:02:33 GMT Lines: 60 Sender: mail2news@demon.net Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: References: <4280298A.6090305@usq.edu.au> <2NXfe.4884$eU.970@fed1read07> <42805b14$0$305$4d4ebb8e@businessnews.de.uu.net> NNTP-Posting-Host: news.news.demon.net Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: news.demon.co.uk 1115791366 21030 158.152.254.254 (11 May 2005 06:02:46 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Wed, 11 May 2005 06:02:46 +0000 (UTC) X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-MIME-Autoconverted: from 8bit to quoted-printable by mulga.cs.mu.OZ.AU id j4B62gEH002817 X-Accept-Language: ko, en X-Virus-Scanned: by amavisd-new at cs.mu.OZ.AU X-Received: (from fjh@localhost) by mulga.cs.mu.OZ.AU (8.12.10+Sun/8.12.9/Submit) id j4B62XWZ002771; Wed, 11 May 2005 16:02:33 +1000 (EST) X-Path: comp-std-cpp-robomod!not-for-mail 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-Newsgroups: comp.std.c++ Xref: g2news1.google.com comp.std.c++:4690 Daniel Kr=FCgler (ne Spangenberg) wrote: > Hello James Dennett, >=20 > James Dennett schrieb: >=20 >> This has been discussed a number of times here: >> http://groups-beta.google.com/group/comp.std.c++/browse_thread/thread/= bcdfb80dbd695f38/cc4cde7f50c0fd8b?q=3Dcomp.std.C%2B%2B+parent&rnum=3D4#cc= 4cde7f50c0fd8b=20 >> >> or >> http://groups-beta.google.com/group/comp.std.c++/browse_thread/thread/= 745b8fd5e5fadce3/61758e00b849500f?q=3Dcomp.std.C%2B%2B+parent&rnum=3D6#61= 758e00b849500f=20 >> >> would be examples. Names suggested include "super" and "inherited". >> In the past the idea hasn't had all that much support, given that >> it's not hard to add a typedef manually and that generalizations to >> multiple inheritance are either restricted or complicated.=20 >=20 >=20 > You are right, but to my opinion it would be quite useful to have an=20 > extended typedef mechanism which allows to > define a typedef at the point of derivation (This has already been=20 > proposed by others), e.g. >=20 > class B1 {...}; > class B2 {...}; >=20 > class Derived : public typedef B1 Base1, protected typedef B2 Base2 { > . > }; >=20 > or >=20 > class Derived : public Base1 =3D B1, protected Base2 =3D B2 { > . > }; >=20 > This extension has the advantage that complicated, template-based=20 > inheritance relations can be expressed in a > consistent way. That has already been mentioned, too: see http://groups-beta.google.com/group/comp.std.c++/browse_frm/thread/21f10b= a31b699661/363cc91f87e78bb0#363cc91f87e78bb0 http://groups-beta.google.com/group/comp.std.c++/browse_frm/thread/21f10b= a31b699661/12eeaba4410ade3e#12eeaba4410ade3e I like the second one better, because it's more clear and more succinct. --=20 Seungbeom 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 ]