On Tue, May 02, 2006 at 04:54:40PM +0200, Sebastian Redl wrote:
Paul A Bristow wrote:
The Standard is imprecise on this issue, but I feel it is a very poor do that such a bizarre small range of values should be wrong.
Feels like an off-by-one rounding bug to me.
I tend to agree with the MS engineers here. I've found out only yesterday that the FPU/math library is not entirely deterministic in some calculations (including square roots and trigonometry, typical 3d stuff), so I think worrying about serialization/deserialization is useless.
Do you have example code / pointers to documentation for that? I've always been under the impression that basic math is deterministic regardless of IEEE compliance, and would really like to know if/where there are cases where that doesn't hold. Thanks, Geoffrey