linux-kernel - Re: [PATCH] BUILD_BUG_ON_ZERO -> BUILD_BUG_OR

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Message-Id: <1173691510.32234.222.camel@localhost.localdomain>
Date:	Mon, 12 Mar 2007 20:25:10 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Jan Beulich <jbeulich@...ell.com>
Cc:	Andi Kleen <ak@....de>,
	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] BUILD_BUG_ON_ZERO -> BUILD_BUG_OR_ZERO

On Mon, 2007-03-12 at 08:23 +0000, Jan Beulich wrote:

> I have to admit that I don't see the point here - I can't seem to make
> any sense of the OR... Jan

At least one other person thought that:

	#define BUILD_BUG_ON_ZERO(e) BUILD_BUG_ON((e) == 0)

OTOH, BUILD_BUG_OR_ZERO says what happens: either it's a build bug, or
it's zero.

Hope that clarifies,
Rusty.


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