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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

bitLen() counts the actual bit length of a Python integer, that is, the number of the highest non-zero bit plus 1. Zero, with no non-zero bit, returns 0. Zero, with no non-zero bit, returns 0. As should be expected from the quote above about "the illusion of an infinite string of sign bits extending to the left," a negative number throws the computer into an infinite loop.

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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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 ...

https://btechgeeks.com/python-program-to-get-nth-bit-of-a-number/

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Python Program to Get nth Bit of a Number - BTech Geeks

Given a number and the bit position, the task is to get the bit that is present at that position (in the binary representation of a number). Bitwise & Operator: If both bits are 1, sets each bit to 1. Examples: Example1: Input: Given Number = 2 Bit position(in range 0-31)= 0. Output: The bit present at the given position{ 0 } for a given number ...

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? - Post.Byes

Hi, I'm using python to develop some proof-of-concept code for a cryptographic application. My code makes extended use of python's native bignum capabilities. In many cryptographic applications there is the need for a function 'get_highest_bit_num' that returns the position number of the highest set bit of a given integer.

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

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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) ...

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Clearing the most significant bit from an integer - code golf

The output isn with its most significant bit set to 0. Test Cases 1 -> 0 2 -> 0 10 -> 2 16 -> 0 100 -> 36 267 -> 11 350 -> 94 500 -> 244 For example: 350 in binary is 101011110. Setting its most significant bit (i.e. the leftmost 1 bit) to 0 turns it into 001011110 which is equivalent to the decimal integer 94, the output.

https://www.baeldung.com/cs/most-significant-bit

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Finding the Most Significant Bit | Baeldung on Computer Science

Also, we get the modulo of the number after dividing it by two and add it to the answer. In the end, the answer is the list of zeros and ones we got when taking the modulo of the number when divided by 2. Note that the most significant bit is the last one we store. Similarly, the least significant bit is the first one we get. 2.2. Bitwise ...

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