python get highest bit - PrivacyWall

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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. int.bit_length()-1 This is much more efficient then using math.log() or the other function you had posted. EDIT: As requested, timeit results are posted: python -m timeit -s 'import math;x=100' 'int(math.log(x,2))' 1000000 loops, best of 3: 0.5 usec per loop

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

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BitManipulation - Python Wiki

The number of the highest bit set is the highest power of 2 less than or equal to the input integer. This is the same as the exponent of the floating point representation of the integer, and is also called its "integer log base 2".(ref.1) In versions before 3.1, the easiest way to determine the highest bit set is*:

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

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Python/bit_manipulation/highest_set_bit.py at master - GitHub

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https://stackoverflow.com/questions/9298865/get-n-th-bit-of-an-in...

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python - Get n-th bit of an integer - Stack Overflow

Shift the bit to the last position, mask out everthing else: bit = (a >> n) & 1 This assumes that the bits are indexed in the usual way, i.e. the least significant bit is bit 0. Edit: I'm not sure if this is the fastest way to do it in your version of Python, but

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Python: How do I extract specific bits from a byte?

To answer the second part of your question, you can get specific bit values using bitwise operations # getting your message as int i = int("140900793d002327", 16) # getting bit at position 28 (counting from 0 from right) (i >> 28) & 1 # getting bits at position 24-27 bin((i >> 24) & 0b111)

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

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Algorithm to find the most significant bit - Stack Overflow

If you are interested in a C/C++ solution you can have a look at the book "Matters Computational" by Jörg Arndt where you have these functions defined in section "1.6.1 Isolating the highest one and finding its index": static inline ulong highest_one_idx(ulong x) // Return index of highest bit set.

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python - Most Significant Byte Calculation - Stack Overflow

Is the goal to get the top aligned byte, or the highest eight bits set? Makes a big difference. – ShadowRanger. Commented Sep 29, 2015 at 3:05. ... return index of least significant bit in Python. 1. Get the x Least Significant Bits from a String in Python. 0. Arbitrary length integer to byte array conversion (Most significant byte first) ...

https://www.geeksforgeeks.org/position-of-rightmost-set-bit/

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Position of rightmost set bit - GeeksforGeeks

Given an integer n, the task is to return the position of the first set bit from right to left in the binary representation n. If n is equal to 0 (no set bits present), then return 0. Note: Position of rightmost bit is 1. Examples: Input: n = 18 Output: 2 Explanation: Binary Representation of 18 is 10010, hence position of first set bit from right is 2. ...

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

Lowest/highest bit set in integer. 13 Years Ago Updated 10 Years Ago Gribouillis 1 Tallied Votes 2K Views Share These two functions compute the orders of the lowest bit and the highest bit set in the binary representation of an integer.

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

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Solved: get bits from byte in Python - SourceTrail

3. Use bitwise AND: Finally, we apply the bitwise AND operator (&) between the shifted byte and the mask.This operation will extract only the desired bits, leaving the rest unchanged. Python’s Bitwise Operators and Libraries. Python’s bitwise operators play a significant role in extracting bits from bytes. These operators perform operations at the bit level, allowing us to manipulate ...

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