From -5450228071503685607 X-Google-Thread: f78e5,6978327f896d5d5b X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!news.glorb.com!news-out.ntli.net!newsrout1.ntli.net!news-in.ntli.net!ntli.net!kibo.news.demon.net!mutlu.news.demon.net!demon!mail2news.demon.co.uk!devnull From: usenet@disemia.com (edA-qa mort-ora-y) Newsgroups: comp.std.c++ Subject: Re: What is the use of the null directive # ? Date: Sun, 27 Jun 2004 07:40:50 +0000 (UTC) Organization: Arcor Lines: 29 Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: <40dd2436$0$26364$9b4e6d93@newsread4.arcor-online.net> References: <607f883e.0406251028.5412fc80@posting.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: mail2news.demon.co.uk 1088322050 8945 10.0.0.1 (27 Jun 2004 07:40:50 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Sun, 27 Jun 2004 07:40:50 +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 1BeUHR-0002K1-00 for mail2news@news.news.demon.net; Sun, 27 Jun 2004 07:40:50 +0000 X-Received: from mulga.cs.mu.OZ.AU (localhost [127.0.0.1]) by mulga.cs.mu.OZ.AU with ESMTP id i5R7ehrd022130; Sun, 27 Jun 2004 17:40:43 +1000 (EST) X-Received: (from fjh@localhost) by mulga.cs.mu.OZ.AU (8.12.10+Sun/8.12.9/Submit) id i5R7efmD022119; Sun, 27 Jun 2004 17:40:41 +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 Thunderbird 0.6 (X11/20040502) X-Accept-Language: en-us, en X-Newsgroups: comp.std.c++ X-NNTP-Posting-Date: 26 Jun 2004 09:22:31 MEST X-Spam-Checker-Version: SpamAssassin 2.60-mulga_r1 (1.212-2003-09-23-exp) on mulga.cs.mu.OZ.AU X-Spam-Status: No, hits=-4.9 required=5.2 tests=BAYES_00 autolearn=ham version=2.60-mulga_r1 Xref: g2news1.google.com comp.std.c++:1041 Prateek R Karandikar wrote: > What is the use of the null-directive # ? For continuinity I suppose, so you can put blank lines between your directives but still see that it is all one-preprocessing chunk. #if defined( VAR_A ) # if defined( VAR_B ) # define VAR_C # define VAR_D # endif # #elif defined( VAR_B ) # # #endif -- edA-qa mort-ora-y (Producer) Trostlos Records "What suffering would man know if not for his own?" --- [ 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 ]