Re: MSEC_TO_JIFFIES is messed up...
From: J. Bruce Fields
Date: Wed May 12 2004 - 17:09:43 EST
On Wed, May 12, 2004 at 11:55:18PM +0200, Andreas Schwab wrote:
> "J. Bruce Fields" <bfields@xxxxxxxxxxxx> writes:
> > If gcc really optimizes that to just the identity function, then surely
> > that's a gcc bug? Multiplication is left-associative, so i * 1000 /
> > 1000 = (i * 1000) / 1000, but (i * 1000) should be zero for any i
> > divisible by i^(sizeof(int) - 12).
> Signed integer overflow is undefined in C, so the compiler is allowed to
> assume it does not happen.
Ugh, right, got it.--b.
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