From -230313685507548510 X-Google-Thread: f78e5,4176870a6d7b2d6 X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!news.glorb.com!news2.telebyte.nl!border2.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!news-hub.cableinet.net!blueyonder!peer-uk.news.demon.net!kibo.news.demon.net!news.demon.co.uk!demon!stump.algebra.com!devnull From: bloodymir.crap@gmx.net (Frank Birbacher) Newsgroups: comp.std.c++ Subject: Re: Union fun Date: Tue, 26 Oct 2004 22:00:51 GMT Lines: 21 Sender: mail2news@demon.net Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: <2u7uonF272r7kU3@uni-berlin.de> References: <1a0929fa.0410191124.162d57ee@posting.google.com> <194c1211.0410220336.5bdc63f9@posting.google.com> NNTP-Posting-Host: news.news.demon.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.demon.co.uk 1098828065 739 158.152.254.254 (26 Oct 2004 22:01:05 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Tue, 26 Oct 2004 22:01:05 +0000 (UTC) X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Orig-X-Trace: news.uni-berlin.de fwTSRmf79RcQy3oO3zsshAHdbIMAL7wag1ZsJcC2kl/79wVX06+3dqUkW2 X-Accept-Language: en-us, 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 i9QM0p0Q023729; Wed, 27 Oct 2004 08:00:51 +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++:3191 Hi! Helium wrote: > What about something like: > > You use a strcut containing a char-array. It's size is that of the > largest object you want to store (-> sizeof()). > Than you create objects using placement new in this array (and you > destroy them manually calleng thir destructor). After some days of debugging you resort to boost::any, which already does that. Frank --- [ 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 ]