Messages in this thread | | | Date | Fri, 25 May 2007 21:28:54 +0100 | From | Russell King <> | Subject | Re: double exclamation (!!) suckage in the kernel |
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On Sat, May 26, 2007 at 01:53:59AM +0530, Satyam Sharma wrote: > Are all these occurrences merely the debris of > s/something/!notsomething/g kind of patches or is there some > dark, unknown C / gcc wizardry I have absolutely no clue of?
Try building and running this:
#include <stdio.h> int main() { int i; for (i = 0; i < 10; i++) printf("%d: %d\n", i, !!i); return 0; }
and you should see it's effect.
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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