python get highest bit - PrivacyWall

https://stackoverflow.com/questions/32039478/python-how-to-get-se...

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bit manipulation - Python How to get set bit - Stack Overflow

To get the bit number of the highest bit set, you could use. This is much more efficient then using math.log() or the other function you had posted. EDIT: As requested, timeit results are posted: Also, using math.log will yeild inaccurate results for values higher than 2**29.

https://wiki.python.org/moin/BitManipulation

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BitManipulation - Python Wiki

Here is some information and goals related to Python bit manipulation, binary manipulation. Some tasks include: Turn "11011000111101..." into bytes, (padded left or right, 0 or 1,) and vice versa. Rotate bits, addressed by the bit.

https://github.com/TheAlgorithms/Python/blob/master/bit_manipulat...

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Python/bit_manipulation/highest_set_bit.py at master - GitHub

def get_highest_set_bit_position (number: int) -> int: """ Returns position of the highest set bit of a number.

https://www.geeksforgeeks.org/python-slicing-extract-k-bits-given...

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Python Slicing | Extract ‘k’ bits from a given position

How to extract ‘k’ bits from a given position ‘p’ in a number? Examples: k = 5 . p = 2. Output : The extracted number is 21. so, you should get only 10101 i.e. 21. Input : number = 72. k = 5 . p = 1. Output : The extracted number is 8. so, you should get only 01000 i.e 8.

https://realpython.com/python-bitwise-operators/

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Bitwise Operators in Python

Python’s bitwise operators let you manipulate those individual bits of data at the most granular level. You can use bitwise operators to implement algorithms such as compression, encryption, and error detection as well as to control physical devices in your Raspberry Pi project or elsewhere.

https://www.daniweb.com/programming/software-development/code/406...

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python - Lowest/highest bit set in integer. | DaniWeb

Lowest/highest bit set in integer. These two functions compute the orders of the lowest bit and the highest bit set in the binary representation of an integer. I expect them to handle securely very large integer values. def high_bit_order(n): """Return the integer k >= 0 such that 2**k <= n < 2**(k+1).

https://stackoverflow.com/questions/32834963/most-significant-byt...

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python - Most Significant Byte Calculation - Stack Overflow

For the most significant aligned byte, in Python 3 you can do: return val.to_bytes((val.bit_length() + 7) // 8, 'big')[0] In Py2, you'd have to convert to a hex string and back to match the to_bytes approach. Thanks, that seems like a much better way of doing things, I think i need to do more study on bit operations!

https://stackoverflow.com/questions/17027878/algorithm-to-find-th...

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Algorithm to find the most significant bit - Stack Overflow

Finding the most significant bit in a word (i.e. calculating log2 with rounding down) by using only C-like language instructions can be done by using a rather well-known method based on De Bruijn sequences. For example, for a 32-bit value. However, in practice more simple methods (like unrolled binary search) usually work just as well or better.

https://www.sourcetrail.com/python/python-get-bits-from-byte/

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Solved: get bits from byte in Python - SourceTrail

To extract bits from a byte, we will use the bitwise AND operator (&) and bit shifting techniques in Python. The bitwise AND operator will help us fetch the targeted bits, while the bitwise right shift operator (>>) will be used to move the bits to the desired position. Here’s the Python function to extract bits from a byte:

https://post.bytes.com/forum/topic/python/749881-how-to-get-the-t...

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how to get the thighest bit position in big integers?

My code makes extended use of python's. native bignum capabilities. set bit of a given integer. For example: slow. position. For small r, for example r = (1 << 16) - 1, the result from. math.log (, 2) is correct, for big r it isn't any more. determine the required bit position in python? I know that my two. can be combined to get something working.

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