"Beware of bugs in the above code; I have only proved it correct, not tried it. --Knuth" http://www-cs-faculty.stanford.edu/~uno/faq.html At 11:52 AM 3/28/2014, Warren D Smith wrote:

arggh, sorry for my incorrect word bit-reversal hack. It was "so obviously correct, I did not need to test it." Famous last words...