Article View: comp.std.c
Article #3140Re: gcc and NULL function pointers.
From: Peter da Silva
Date: Fri, 14 Jun 1991 19:29
Date: Fri, 14 Jun 1991 19:29
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1218 bytes
In article <4641@inews.intel.com> bhoughto@pima.intel.com (Blair P. Houghton) writes:
> Old chesnuts crack hard...
> The most general, and therefore most valuable, way to define NULL is
> to simply map it to the digit 0.
And you're working at Intel... On an 80x86 (x<3), there exist models where
int = 16 bits, pointer = 32 bits. On such a machine,
execl("/bin/sh", "sh", "-c", "echo", NULL);
(which is a common idiom in UNIX source groups) will display amazing
things, assuming you don't get a core dump...
--
Peter da Silva; Ferranti International Controls Corporation; +1 713 274 5180;
Sugar Land, TX 77487-5012; `-_-' "Have you hugged your wolf, today?"
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!menudo.uh.edu!sugar!ficc!peter From: peter@ficc.ferranti.com (Peter da Silva) Newsgroups: comp.std.c Subject: Re: gcc and NULL function pointers. Message-ID: <EE-B=O2@xds13.ferranti.com> Date: 14 Jun 91 19:29:11 GMT References: <16386@ganymede.inmos.co.uk> <1991Jun4.012914.25418@tkou02.enet.dec.com> <4641@inews.intel.com> Reply-To: peter@ficc.ferranti.com (Peter da Silva) Organization: Xenix Support, FICC Lines: 16