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JamesTheAwesomeDude/rotbit.py

Created July 7, 2018 19:07
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rotbit.py
rotr = lambda v,n=1,s=8: ((v>>n)|(v<<(s-n)))&~(~0<<s)
rotl = lambda v,n=1,s=8: ((v<<n)|(v>>(s-n)))&~(~0<<s)
#rot*(number, number_of_bits_to_shift, size_of_number)
assert rotr(0b11110011,3) \
== 0b01111110
assert rotl(0xDEADBEEF,20,32) \
== 0xEEFDEADB
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