linux-kernel - Re: [PATCH] take sched_debug.c out of nasal demon territory

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Message-ID: <Pine.LNX.4.64.0708061750270.13469@fbirervta.pbzchgretzou.qr>
Date:	Mon, 6 Aug 2007 17:51:29 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Al Viro <viro@....linux.org.uk>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>, mingo@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] take sched_debug.c out of nasal demon territory


On Aug 6 2007 04:26, Al Viro wrote:
>
>	C99 6.10.3[11]: preprocessing directive within the argument list
>of macro invocation => undefined behaviour.  Don't do that...

String concatenation ("a" "b") is not a preprocessing directive.

$ gcc -E test.c
# 1 "test.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "test.c"
printf("a" "b");

(If it was, the "a" "b" would have already been joined.)


	Jan
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