From -5057647953329307395 X-Google-Thread: f78e5,3c7d746be594880e X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!aotearoa.belnet.be!news.belnet.be!newsgate.cistron.nl!xs4all!peer.news.zetnet.net!peer-uk.news.demon.net!kibo.news.demon.net!mutlu.news.demon.net!news.demon.co.uk!demon!stump.algebra.com!devnull From: pete@versatilecoding.com (Pete Becker) Newsgroups: comp.std.c++ Subject: Re: Concerning n2157 and is_empty specification Date: Tue, 20 Mar 2007 15:40:12 GMT Lines: 30 Sender: mail2news@demon.net Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: References: <1173648852.230192.11800@p10g2000cwp.googlegroups.com> NNTP-Posting-Host: news.news.demon.net Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.demon.co.uk 1174405223 13104 158.152.254.254 (20 Mar 2007 15:40:23 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Tue, 20 Mar 2007 15:40:23 +0000 (UTC) X-Original-To: std-c++@mailman.ucar.edu X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-User-Agent: Thunderbird 1.5.0.10 (Macintosh/20070221) X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Virus-Scanned: amavisd-new at csse.unimelb.edu.au X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Received: (from fjh@localhost) by mulga.csse.unimelb.edu.au (8.13.8+Sun/8.13.8/Submit) id l2KFeCnD001971; Wed, 21 Mar 2007 02:40:12 +1100 (EST) X-Path: comp-std-cpp-robomod!not-for-mail X-NNTP-Posting-Date: Tue, 20 Mar 2007 10:36:16 -0500 X-Delivered-To: std-c++@mailman.ucar.edu X-Postfilter: 1.3.34 X-Authentication-Warning: serv1.gc.dca.giganews.com: news set sender to poster@giganews.com using -f X-Newsgroups: comp.std.c++ Xref: g2news1.google.com comp.std.c++:8118 Howard Hinnant wrote: > > Perhaps the best thing to do would be to go back to the old definition > for is_empty, but insist that it be defined somewhere in the language > spec. And then is_empty can refer to that spec. That makes it somebody > else's problem. :-) Although, that definition may not be compatible > with our intent for is_empty... > Depending, of course, on what "our intent" is. My intent in voting for this was for is_empty, like all the rest of the characterization traits, to reflect the meaning given in the core language (which is why the requirements for those traits simply refer to the appropriate section, rather than more or less duplicating what the core portion already says). There is a core problem that "empty class" is used in several places but not defined. -- -- Pete Roundhouse Consulting, Ltd. (www.versatilecoding.com) Author of "The Standard C++ Library Extensions: a Tutorial and Reference." (www.petebecker.com/tr1book) --- [ 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 ]