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> But the bit32 library has arshift. It does seem a pity to deprecate
> something not
> superseded by something better. Maybe the 64-bit arithmetic right shift can be
> provided as math.arshift?

A call to math.arshift(x,d) will be even slower than x // 2^d. (The
whole point of an arithmetic shfift seems to be that it is faster than

-- Roberto