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From: David Woodhouse <dwmw2@infradead.org>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.linuxppc.org
Subject: Re: [PATCH] C undefined behavior fix 
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Date: Thu, 03 Jan 2002 00:35:30 +0000
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(cc list trimmed)

alan@lxorguk.ukuu.org.uk said:
>  If you want a strcpy that isnt strcpy then change its name or use a
> different language 8)

The former is not necessarily sufficient in this case. You've still done the
broken pointer arithmetic, so even if the function isn't called strcpy() the
compiler is _still_ entitled to replace it with a call to memcpy() or even
machine_restart() before sleeping with your mother and starting WW III.

Granted, it probably _won't_ do any of those today, but you should know
better than to rely on that.

What part of 'undefined behaviour' is so difficult for people to understand?

--
dwmw2


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