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Re: Division involving u64 : undefined reference to __udivdi3

On Fri, Feb 6, 2009 at 7:08 PM, Vivek Kumar Gupta <gkvivek@xxxxxxxxx> wrote:
> 1. Try upgrading your GCC compiler to 4.3.2

Ok

> 2. To avoid Division in code: try using shift operation instead of div.
>
> E.g. "c = c >> x" instead of "c = c / x;"

But that holds true only when the divisor is a power of 2.
i.e.  if,  x = 2^a   then   "c = c / x"  is same as  "c = c >> a".

What if that is not the case ?



Regards
Sukanto

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