Messages in this thread | | | Date | Wed, 17 Apr 2002 13:53:55 -0700 | From | "Martin J. Bligh" <> | Subject | Re: 2.5.8-dj1 : arch/i386/kernel/smpboot.c error |
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>>>> Even though clustered_apic_mode is 0, the compiler still complains >>>> about the second one and the first one doesn't depend on >>>> clustered_apic_mode at all. >>>> >>> Hmmm ... not sure why the compiler complains about the second one, >>> that's very strange ;-) >>> >> >> I agree. The cpp ouput clealy shows >> >> if ((0) && (numnodes > 1)) { >> >> so I'm not sure why there's a problem. > > Is the thing generating the "(0)" a macro? If so, then the rules
#define clustered_apic_mode (0)
> of C and the "&&" operator say that "if the first is false, the > second needn't even be evaluated".
That's what I would have thought. But I don't think it's the second part that causes the warning, it's the thing *inside* the if clause.
> Could that be what's causing the warning?
To my mind, that's why we should *not* be getting a warning ?
M.
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