From -6505035715051416774 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,da46f9d6feb862e5 X-Google-Attributes: gidf78e5,public From: Martin von Loewis Subject: Re: Is this well-formed? Date: 1999/04/22 Message-ID: #1/1 X-Deja-AN: 469735261 Approved: Valentin Bonnard References: <7f1nnv$6c$1@weber.techno-link.com> <371655EE.948EA1E6@technologist.com> <371F37BE.E9ED31D@physik.tu-muenchen.de> X-Original-Date: 22 Apr 1999 20:26:33 +0200 Content-Type: text/plain; charset=US-ASCII Organization: Humboldt-University Berlin, Department of Computer Science X-Auth: PGPMoose V1.1 PGP comp.std.c++ iQBVAwUANx+dF6wEuYhIxRhxAQGaVwH8D/IvJhQ8FcF/ad8q0rVhfQlLVd/VTfAd EwEQKO2olowjGK6MjRAOn0LlZMo+Frfm4AEDVifV45HeTHINcfvjaw== =5Hdu Mime-Version: 1.0 (generated by tm-edit 7.106) Newsgroups: comp.std.c++ Christopher Eltschka writes: > void f(int) { cout << "foo" << endl; } > void f(char*) { cout << "bar" << endl; } [...] > f(NULL); // prints foo again Is that really guaranteed? I'd think #define NULL 0L would be a conforming definition of NULL. Then, calling f(int) would require an integral conversion, and calling f(char*) would require a null-pointer conversion, which both have conversion rank. In that case, the call could be ambiguous. Under no circumstances, f(char*) is called. Regards, Martin --- [ 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://reality.sgi.com/austern_mti/std-c++/faq.html ]