From -5896485027081346273 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,314ebdf2ff957e27 X-Google-Attributes: gidf78e5,public X-Google-ArrivalTime: 2003-04-24 13:55:25 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!kibo.news.demon.net!mutlu.news.demon.net!demon!mail2news.demon.co.uk!devnull From: allan_w@my-dejanews.com (Allan W) Newsgroups: comp.std.c++ Subject: Re: Why int main()? Date: Thu, 24 Apr 2003 20:55:24 +0000 (UTC) Organization: http://groups.google.com/ Lines: 28 Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: <7f2735a5.0304241249.2bdc086e@posting.google.com> References: <3E9821CE.8AC8B8C6@web.de> <7f2735a5.0304161119.2d516e7d@posting.google.com> <3EA7067C.BD7A6968@unet.univie.ac.at> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Trace: mail2news.demon.co.uk 1051217724 9343 10.0.0.1 (24 Apr 2003 20:55:24 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Thu, 24 Apr 2003 20:55:24 +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 198nkY-0002QY-00 for mail2news@news.news.demon.net; Thu, 24 Apr 2003 20:55:23 +0000 X-Received: from localhost (localhost [[UNIX: localhost]]) by mulga.cs.mu.OZ.AU id GAA26987; Fri, 25 Apr 2003 06:55:11 +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-Newsgroups: comp.std.c++ X-NNTP-Posting-Date: 24 Apr 2003 20:49:47 GMT X-Spam-Status: No, hits=-7.4 required=5.0 tests=MAILTO_TO_SPAM_ADDR,NOSPAM_INC,QUOTED_EMAIL_TEXT, REFERENCES,SPAM_PHRASE_00_01 version=2.41 Xref: archiver1.google.com comp.std.c++:18945 a9804814@unet.univie.ac.at (Thomas Mang) > A point against "void main()": > It violates the overloading rules because we'd have then 2 > functions differing only in the return type. 3.6.1/2 ... the main function... shall not be overloaded. > OTOH, main is special anyways, why not make it special regarding this too, > since there is hardly an ambiguity to expect in practice........ Can you imagine what would happen if a program had two global functions named main()? int main() { std::cout << "Version 1" << endl; } int main(int, char**) { std::cout << "Version 2" << endl; } If the implementation manages different signatures for main by using the assembly-language concept called "weak references", then it will end up calling whichever version of main that the start-up code happens to check first. (Or maybe it calls BOTH of them, one after the other!) If it uses some other technique, maybe it gets a linker error. Otherwise I have no idea what to expect -- no, not a clue. --- [ 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 ]