linux-kernel - Re: [PATCH][RFC] Sparc: Remove trigraph in die_if

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Message-ID: <20110609230322.GY11521@ZenIV.linux.org.uk>
Date:	Fri, 10 Jun 2011 00:03:22 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	David Miller <davem@...emloft.net>
Cc:	jj@...osbits.net, sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH][RFC] Sparc: Remove trigraph in die_if_kernel() message.

On Thu, Jun 09, 2011 at 03:59:43PM -0700, David Miller wrote:
> > If I'm not mistaken, that "??!" will be taken as a trigraph for "|" by the 
> > preprocessor, so the final string will end up either as
> >   "Penguin instruction from Penguin mode|?!"

Not without -trigraphs, which is not on by default...

> Applied, thanks Jesper :-)

BTW, idiomatic way to deal with those is to use \? instead of string concat...
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