[SciPy-dev] Pre-release fixes
oliphant at ee.byu.edu
Thu Sep 30 22:41:08 CDT 2004
Robert Kern wrote:
> I've just checked in a fix for fastumath's logical functions. They
> used to give wrong answers on OSX and caused some tests to fail. I
> believe this to be an endianness issue, but I don't have another
> big-endian machine to test on. All tests still pass on Athlon/Linux.
> The changes made largely track what Numeric did, so I'm not sure if
> these were conscious deviations to speed up fastumath or just a
> failure to keep up with the bugfixes in Numeric.
> I have only implemented fastumath_unsigned.inc as yet. I will make
> similar changes in fastumath_nounsigned.inc as I accumulate tuits.
> Travis, could you check my changes to make sure I didn't revert
> differences you deliberately made? If they were deliberate, then we
> need to figure a way to revert to the correct, if slower, Numeric
> implementations on the Mac.
I'm not sure what the problem is here. But I think you undid deliberate
changes that have implications for alter_numeric() and need to be
I had intentially made the results of all logical operations be unsigned
bytes. What was broken about this on the Mac?
Could you explain your changes here, better?
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