From -3350173410080000218 X-Google-Thread: f78e5,7b79e159eaf7fc79 X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!news.glorb.com!easynet-monga!easynet.net!kibo.news.demon.net!mutlu.news.demon.net!demon!mail2news.demon.co.uk!devnull From: AlbertoBarbati@libero.it (Alberto Barbati) Newsgroups: comp.std.c++ Subject: Re: Template visibility / linkage Date: Fri, 25 Jun 2004 19:38:42 +0000 (UTC) Organization: [Infostrada] Lines: 34 Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: References: <40d85d55$0$25274$9b4e6d93@newsread2.arcor-online.net> <40d9b2f2$0$25279$9b4e6d93@newsread2.arcor-online.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: mail2news.demon.co.uk 1088192322 18061 10.0.0.1 (25 Jun 2004 19:38:42 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Fri, 25 Jun 2004 19:38:42 +0000 (UTC) X-Received: from mulga.cs.mu.oz.au ([128.250.1.22]) by news.demon.co.uk with esmtp (Exim 4.12) id 1BdwX3-0004hA-00 for mail2news@news.news.demon.net; Fri, 25 Jun 2004 19:38:41 +0000 X-Received: from mulga.cs.mu.OZ.AU (localhost [127.0.0.1]) by mulga.cs.mu.OZ.AU with ESMTP id i5PJccrd020449; Sat, 26 Jun 2004 05:38:38 +1000 (EST) X-Received: (from fjh@localhost) by mulga.cs.mu.OZ.AU (8.12.10+Sun/8.12.9/Submit) id i5PJccsN020440; Sat, 26 Jun 2004 05:38:38 +1000 (EST) X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Path: comp-std-cpp-robomod!not-for-mail X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-Delivered-To: std-c++@ucar.edu X-User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514 X-Accept-Language: en, it X-Newsgroups: comp.std.c++ X-NNTP-Posting-Date: Fri, 25 Jun 2004 11:23:18 MET DST X-Virus-Scanned: by amavisd-new at libero.it X-Spamscanner: mailbox5.ucsd.edu (v1.4 May 20 2004 13:55:33, 0.1/5.0 2.63) X-MailScanner: PASSED (v1.2.8 32894 i5P9NKQf042547 mailbox5.ucsd.edu) X-Spam-Checker-Version: SpamAssassin 2.60-mulga_r1 (1.212-2003-09-23-exp) on mulga.cs.mu.OZ.AU X-Spam-Level: X-Spam-Status: No, hits=-3.6 required=5.2 tests=AWL,BAYES_00 autolearn=ham version=2.60-mulga_r1 Xref: g2news1.google.com comp.std.c++:1026 edA-qa mort-ora-y wrote: > Alberto Barbati wrote: > >> with the export keyword. A non-exported declaration (as in the >> example) is not enough. The presence of the specialization in >> is inessential to this example. The fact that the linkage of a >> template is external is completely unrelated with this example. > > > Thank you. I think I understand now. One question with the export > keyword though, must this go on only the declaration? Does it then > apply to all specializations in other translation units -- or must the > specializations still be seen (in declaration only with export) in the > translation unit that instantiates them? > > I don't completely understand how export works, so I leave to others the answer to your question. AFAIK only EDG-based compilers support the export keyword and I did't have yet the opportunity to use any such compiler. Your curiosity is praiseworthy, but unless you really have a compiler supporting export, I wouldn't mess with it. Alberto PS: in case you are wondering, no, neither gcc nor VC++ support the export keyword --- [ 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 ]