Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!zaphod.mps.ohio-state.edu!think.com!mintaka!bloom-picayune.mit.edu!news From: scs@adam.mit.edu (Steve Summit) Newsgroups: comp.lang.c Subject: Re: Is there a NULL pointer to functions? Message-ID: <1991May29.154516.25898@athena.mit.edu> Date: 29 May 91 15:45:16 GMT References: <1991May21.125639.10052@umiami.ir.miami.edu> <16269@smoke.brl.mil> <632@gca.UUCP> Sender: news@athena.mit.edu (News system) Reply-To: scs@adam.mit.edu Organization: Thermal Technologies, Cambridge, MA Lines: 14 In article <632@gca.UUCP> hinton@gca.UUCP (Edward Hinton) writes: >Now I'm going back a ways, but C doesn't necessarily define >NULL as 0, although it's been quite a while since I've seen >a system where it isn't. However, I recall a system where 0 WAS a >valid address (small model on an 8086 based virtual memory system) >and NULL was defined to be -1. Regular readers of comp.lang.c recognize the fallacies in this statement, and I've just sent Ed a copy of the comp.lang.c frequently-asked questions list, so there should be no need to comment further on this aspect of the problem. Steve Summit scs@adam.mit.edu