Questions tagged [bit-manipulation]

27

votes

16

answers

Optimize me! (C, performance) -- followup to bit-twiddling question

asked 2010-08-17T06:21:37.800

22

votes

7

answers

Weird behavior of right shift operator (1 >> 32)

c++ c bit-manipulation bit-shift

asked 2010-08-03T06:59:44.183

119

votes

3

answers

What is CHAR_BIT?

c bit-manipulation

asked 2010-07-08T05:49:41.513

31

votes

2

answers

why is 1>>32 == 1?

java bit-manipulation

asked 2010-07-03T05:24:50.910

27

votes

3

answers

How to de-interleave bits (UnMortonizing?)

bit-manipulation z-order-curve

asked 2010-06-29T01:32:16.353

10

votes

5

answers

Number of bits to represent a number

javascript bit-manipulation bit

asked 2010-06-20T23:14:28.217

18

votes

4

answers

Extracting rightmost N bits of an integer

java algorithm bit-manipulation

asked 2010-05-09T15:50:36.557

23

votes

2

answers

Invert 1 bit in C#

c# .net bit-manipulation

asked 2010-04-09T08:12:35.313

32

votes

6

answers

Convert Byte Array to Bit Array?

c# bit-manipulation

asked 2010-03-30T19:20:03.333

55

votes

5

answers

How to define and work with an array of bits in C?

c arrays multidimensional-array bit-manipulation bitarray

asked 2010-03-26T17:26:15.550

31

votes

3

answers

How do I perform an unsigned right shift (>>> in Java) in C/C++?

java c bit-manipulation

asked 2010-03-11T23:40:42.017

33

votes

9

answers

How to convert an int to a little endian byte array?

c# bit-manipulation

asked 2010-02-28T04:38:59.937

31

votes

6

answers

Zig Zag Decoding

language-agnostic bit-manipulation protocol-buffers bitfoo zigzag-encoding

asked 2010-02-05T22:32:11.853

20

votes

7

answers

How do I represent and work with n-bit vectors in Python?

python bit-manipulation bitarray bitvector

asked 2010-01-27T14:59:13.990

27

votes

2

answers

Bitwise operations in PHP?

php bit-manipulation

asked 2010-01-25T11:02:23.660

15

votes

7

answers

C/C++ bitfields versus bitwise operators to single out bits, which is faster, better, more portable?

c++ c bit-manipulation bit-fields

asked 2010-01-24T14:09:50.513

20

votes

5

answers

javascript trunc() function

javascript bit-manipulation bitwise-operators

asked 2010-01-24T02:49:00.413

14

votes

2

answers

Very Compact Bitarray in Java

java memory bit-manipulation bitset bitarray

asked 2010-01-19T03:54:11.153

9

votes

7

answers

Generate a random binary number with a variable proportion of '1' bits

java optimization random bit-manipulation

asked 2010-01-16T01:57:06.353

17

votes

13

answers

How do you randomly zero a bit in an integer?

c# .net vb.net bit-manipulation

asked 2010-01-04T19:30:43.187

107

votes

16

answers

Catch and compute overflow during multiplication of two large integers

c integer bit-manipulation multiplication integer-overflow

asked 2009-11-29T12:14:59.330

37

votes

6

answers

Flags enum & bitwise operations vs. “string of bits”

c# bit-manipulation enum-flags

asked 2009-08-17T02:58:11.030

13

votes

15

answers

Swap bits in a number in C

c bit-manipulation

asked 2009-07-28T07:48:36.647

54

votes

22

answers

How to add two numbers without using ++ or + or another arithmetic operator

c++ c algorithm bit-manipulation

asked 2009-07-19T13:45:57.170

36

votes

8

answers

Is & faster than % when checking for odd numbers?

python performance bit-manipulation modulo

asked 2009-07-07T01:26:42.657

14

votes

9

answers

Calculating Hamming weight efficiently in matlab

matlab bit-manipulation bitstring hammingweight

asked 2009-06-21T22:40:05.480

26

votes

6

answers

How can I set all bits to '1' in a binary number of an unknown size?

bit-manipulation

asked 2009-05-04T01:46:17.990

10

votes

7

answers

How do I set or clear the first 3 bits using bitwise operations?

language-agnostic bit-manipulation

asked 2009-04-15T03:53:30.840

34

votes

14

answers

Find out number of bits needed to represent a positive integer in binary?

java bit-manipulation bit

asked 2009-03-25T02:20:49.347

69

votes

6

answers

Understanding PHP & (ampersand, bitwise and) operator

php operators bit-manipulation bitwise-operators

asked 2009-03-01T18:06:53.207

135

votes

22

answers

C/C++ check if one bit is set in, i.e. int variable

c++ c bit-manipulation

asked 2009-02-07T13:10:46.953

48

votes

14

answers

Fastest way to clamp a real (fixed/floating point) value?

c numbers bit-manipulation clamp

asked 2009-01-09T09:13:11.693

60

votes

17

answers

Algorithm for finding the smallest power of two that's greater or equal to a given value

c++ algorithm assembly bit-manipulation

asked 2008-12-13T08:08:49.893

10

votes

6

answers

MySQL bitwise operations, bloom filter

mysql bit-manipulation

asked 2008-12-11T20:54:38.640

42

votes

10

answers

When to use Bitwise Operators during webdevelopment?

bit-manipulation

asked 2008-11-04T06:21:45.460

36

votes

6

answers

Need help understanding "getbits()" method in Chapter 2 of K&R C

c operators bit-manipulation bit-shift complement

asked 2008-10-13T13:46:05.087

14

votes

10

answers

2.9999999999999999 >> .5?

javascript bit-manipulation precision

asked 2008-10-06T02:42:28.497

45

votes

12

answers

What's the fastest way to divide an integer by 3?

optimization bit-manipulation division

asked 2008-10-05T01:13:19.537

223

votes

11

answers

Most common C# bitwise operations on enums

c# .net enums bit-manipulation flags

asked 2008-09-18T15:46:20.073

9

votes

9

answers

bitwise indexing in C?

c coding-style bit-manipulation

asked 2008-09-15T13:09:32.253

Questions tagged bit-manipulation