Messages in this thread | | | Date | Sun, 27 Nov 2005 20:33:17 -0800 | From | "Randy.Dunlap" <> | Subject | Re: [RFC] HOWTO do Linux kernel development - take 3 |
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On Wed, 23 Nov 2005 22:16:40 -0800 James G. Sack (jim) wrote:
> Pardon the technical question, but.. > > I wonder if you could either elaborate or give a reference to what is > meant by > > "Arbitrary long long divisions .. not allowed"
(if not already answered)
short answer: see include/asm-generic/div64.h
longer answer:
Not supported:
long long numerator, divisor, dividend; /* init. numerator & divisor */ dividend = numerator / divisor;
Is supported:
uin64_t numerator, dividend; uint32_t divisor, remainder; /* init. numerator & divisor */ remainder = do_div(&numerator, divisor);
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