Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!pacbell.com!att!ucbvax!dog.ee.lbl.gov!elf.ee.lbl.gov!torek
From: torek@elf.ee.lbl.gov (Chris Torek)
Newsgroups: comp.lang.c
Subject: Re: New 'n' Improved comp.lang.c FAQ List
Message-ID: <11742@dog.ee.lbl.gov>
Date: 3 Apr 91 22:49:32 GMT
References: <910401.0xf001@etiquette.uu.net> <1991Apr1.203024.19679@unlv.edu> <31946@shamash.cdc.com> <1780@mti.mti.com>
Reply-To: torek@elf.ee.lbl.gov (Chris Torek)
Organization: Lawrence Berkeley Laboratory, Berkeley
Lines: 24
X-Local-Date: Wed, 3 Apr 91 14:49:32 PST

In article <1780@mti.mti.com> adrian@mti.UUCP (Adrian McCarthy) writes:
>I'm not sure if people are really trying to clear this up, or if they're
>just trying to propagate the joke.  At the risk of being a fool...

(I think people are getting it wrong, rather than perpetuating the
Emily Postnews bit.  Anyway, this sort of joke works the way Manny
described to Mike: `Use it once, you're a wit.  Use it twice, you're
a half-wit.'  `Geometric progression?'  `Or worse.')

>	#include <limits.h>
>	#define QUOTE(a)	#a
>		static char	retbuf[sizeof(QUOTE(INT_MIN))];

This almost works: it expands to

		static char	retbuf[sizeof("INT_MIN")];

You must use two levels of macro evaluation:

	#define XQUOTE(a)	QUOTE(a)	/* expanded quote */
		static char retbuf[sizeof(XQUOTE(INT_MIN))];
-- 
In-Real-Life: Chris Torek, Lawrence Berkeley Lab CSE/EE (+1 415 486 5427)
Berkeley, CA		Domain:	torek@ee.lbl.gov