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Re: CVS commit: src/sys/kern
On Fri, 16 Jan 2009, YAMAMOTO Takashi wrote:
> cache_prune: use (a - b > 0) rather than (a > b) to compare ticks.
Why? At first glance, both tests do the same thing.
Both the variables are signed int, so there could be cases where a-b is
undefined while a>b is defined. Is this likely to be a problem, or are
the actual ranges of the variables such that overflow can't happen?
--apb (Alan Barrett)
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