Strangely using a stored $log2 = log(2) in the above test did not improve the log function speed. It was actually slightly slower.

EDIT: similar also with use constant log2 => log(2)

EDIT2: The interpreter must compile such constant expressions into a constant before running.

In reply to Re^3: Most Significant Set Bit by Danny
in thread Most Significant Set Bit by coldr3ality

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