Re: [PATCH] BUILD_BUG_ON_ZERO -> BUILD_BUG_OR_ZERO

From: Robert P. J. Day
Date: Mon Mar 12 2007 - 07:53:11 EST


On Mon, 12 Mar 2007, Stefan Richter wrote:

> Rusty Russell wrote:
> > 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.
>
> What about ZERO_UNLESS_BUILD_BUG_ON(e)? It's long though...

how often is this going to be used? it's not like the tree is
currently awash in calls to BUILD_BUG_ON_ZERO as it is.

rday

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Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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