Re: [patch] time_after_eq fix
From: Chris Friesen
Date: Wed May 18 2005 - 18:17:06 EST
Coywolf Qi Hunt wrote:
Hello,
The two macros time_after and time_after_eq were added to do wrapping
correctly, but only time_after does it the right way, time_after_eq has
been wrong since the very beginning(v2.1.127, 07-Nov-1998).
- ((long)(a) - (long)(b) >= 0))
+ ((long)(b) - (long)(a) <= 0))
Why does it matter which way you do it? In what circumstances does your
code give a different answer?
Chris
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