Mark Dickinson <dicki...@gmail.com> added the comment:

> Though I prefer you switch to x ^= x >> 4.

Okay, how about this one?  Short and sweet.  No loss of information
except when sizeof(void *) > sizeof(long) (unavoidable until someone
finds a way to fit all 64-bit pointers into a 32-bit integer type...)

Added file: http://bugs.python.org/file13054/pointer_hash5.patch

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<http://bugs.python.org/issue5186>
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