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Questions tagged bit-manipulation

90 questions · page 1 of 2

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8
votes
2
answers

What does 'branching' mean in terms of setting/resetting bits?

c bit-manipulation branchless
asked 2013-07-23T07:25:43.647
11
votes
6
answers

Why "010" equals 8?

java binary format bit-manipulation
asked 2013-07-04T12:05:47.027
10
votes
3
answers

Check if a bit is set only once in a series of bitsets

bit-manipulation
asked 2013-04-09T08:52:00.057
27
votes
3
answers

Java: right shift on negative number

java bit-manipulation bitwise-operators bit-shift negative-number
asked 2013-03-17T05:39:29.067
29
votes
1
answers

Calculating Hamming Weight in O(1)

algorithm bit-manipulation
asked 2013-03-05T20:08:00.370
9
votes
2
answers

Correct usage of bitmask?

java bit-manipulation bitwise-operators bit bitmask
asked 2013-01-11T15:56:11.697
8
votes
3
answers

Java and unsigned values

java bit-manipulation
asked 2013-01-02T20:55:36.120
32
votes
7
answers

Bits list to integer in Python

python arrays list bit-manipulation
asked 2012-09-17T14:23:44.127
42
votes
5
answers

Bits counting algorithm (Brian Kernighan) in an integer time complexity

algorithm bit-manipulation
asked 2012-09-12T02:31:58.147
19
votes
7
answers

Encoding int value as an IEEE-754 float (binary32)

c floating-point bit-manipulation bitwise-operators
asked 2012-09-09T20:57:32.553
10
votes
3
answers

C bitwise negation creates negative output:

c bit-manipulation
asked 2012-08-23T03:31:11.807
9
votes
3
answers

How to do bitwise unsigned (zero-fill) right shift in Dart?

bit-manipulation dart
asked 2012-07-31T18:18:23.093
8
votes
1
answers

How to write a bitstream

c bit-manipulation bitstream
asked 2012-07-16T22:23:44.917
15
votes
1
answers

Python Unsigned Right Shift

python operators bit-manipulation shift
asked 2012-07-10T16:51:33.153
47
votes
5
answers

Bitwise XOR of hexadecimal numbers

python hex bit-manipulation xor
asked 2012-06-20T12:32:29.823
17
votes
14
answers

Count leading zeroes in an Int32

c# count int bit-manipulation leading-zero
asked 2012-05-03T20:59:23.780
25
votes
8
answers

Bitwise operations equivalent of greater than operator

c binary bit-manipulation
asked 2012-04-10T21:17:00.827
11
votes
2
answers

Using a bitwise & inside an if statement

java c if-statement bit-manipulation operator-keyword
asked 2012-04-08T15:43:03.467
13
votes
2
answers

Conditional Statement using Bitwise operators

c conditional-statements bit-manipulation bitwise-operators
asked 2012-04-05T19:03:43.600
16
votes
4
answers

How to perform DB bitwise queries in Django?

django bit-manipulation
asked 2012-03-29T07:51:43.103
9
votes
4
answers

What's the fastest way to do a right bit rotation/circular shift on a byte array

java performance optimization bit-manipulation
asked 2012-03-22T15:23:23.460
8
votes
1
answers

Bitwise operations in Postgres

performance postgresql indexing bit-manipulation
asked 2012-02-10T10:23:21.207
12
votes
3
answers

Can I convert a bunch of boolean columns to a single bitmap in PostgreSQL?

sql postgresql types boolean bit-manipulation
asked 2012-01-29T08:25:54.553
11
votes
3
answers

Bitwise or (|) in function argument

c++ c bit-manipulation
asked 2012-01-08T13:42:39.117
30
votes
9
answers

How to create a byte out of 8 bool values (and vice versa)?

c++ boolean bit-manipulation bit-packing
asked 2011-12-11T00:53:36.703
12
votes
9
answers

How to check if a particular bit is set in C#

c# bit-manipulation bit
asked 2011-11-08T16:48:05.983
12
votes
2
answers

Bitwise subtraction

c# bit-manipulation bitmask
asked 2011-09-23T08:44:21.623
12
votes
4
answers

Java integer flag and bitwise operations for memory reduction

java performance memory-management bit-manipulation flags
asked 2011-09-14T11:29:04.197
40
votes
16
answers

Fast divisibility tests (by 2,3,4,5,.., 16)?

c++ c math assembly bit-manipulation
asked 2011-08-01T09:32:56.630
16
votes
2
answers

Bitwise "~" Operator in C#

c# binary bit-manipulation operator-keyword
asked 2011-07-25T02:12:07.440
28
votes
5
answers

Check value of least significant bit (LSB) and most significant bit (MSB) in C/C++

c++ c integer bit-manipulation bit
asked 2011-07-11T08:52:55.043
30
votes
8
answers

f(int x) { return x == 0 ? 0 : 1; } in Java without conditionals

java bit-manipulation
asked 2011-07-08T18:04:13.083
75
votes
8
answers

What does bitwise XOR (exclusive OR) mean?

math language-agnostic bit-manipulation operators xor
asked 2011-06-18T19:35:47.547
87
votes
7
answers

Efficiently find binary strings with low Hamming distance in large set

algorithm bit-manipulation bitwise-operators hamming-distance
asked 2011-06-17T18:01:41.723
76
votes
9
answers

What does a bitwise shift (left or right) do and what is it used for?

bit-manipulation bitwise-operators bit-shift
asked 2011-06-17T12:35:03.910
13
votes
4
answers

Rounded division by power of 2

python bit-manipulation rounding bitwise-operators
asked 2011-05-26T07:30:05.507
18
votes
7
answers

Testing for bitwise Enum values

c# enums comparison bit-manipulation bit
asked 2011-05-24T04:21:09.000
10
votes
2
answers

Replace least significant bit with bitwise operations

binary bit-manipulation bit-shift boolean-operations
asked 2011-05-19T13:30:30.210
11
votes
4
answers

fastest way to write a bitstream on modern x86 hardware

c++ optimization x86 bit-manipulation
asked 2011-04-18T14:41:51.680
10
votes
1
answers

Java Bit Manipulation - What does (num >>= 1) do?

java bit-manipulation bit-shift
asked 2011-04-08T03:21:41.050
9
votes
4
answers

Adding versus ORing performance

c bit-manipulation compiler-optimization addition
asked 2011-04-04T01:23:12.700
13
votes
3
answers

Bit twiddling for checking whether a number is in particular range

c++ c algorithm bit-manipulation
asked 2011-01-01T10:14:15.577
78
votes
6
answers

warning: left shift count >= width of type

c bit-manipulation long-integer bit-shift
asked 2010-11-17T03:48:22.967
78
votes
5
answers

How does an arithmetic bit-shift affect a signed integer?

c bit-manipulation bit-shift
asked 2010-10-24T19:05:38.847
11
votes
12
answers

Integer Byte Swapping in C++

c++ byte bit-manipulation
asked 2010-10-12T15:08:51.363
27
votes
14
answers

Check if a number is non zero using bitwise operators in C

c bit-manipulation
asked 2010-10-12T06:18:34.247
17
votes
7
answers

How can I use bit shifting to replace integer division?

c++ bit-manipulation integer-division
asked 2010-10-03T16:55:16.440
10
votes
6
answers

Swapping pair of bits in a Byte

bit-manipulation
asked 2010-09-21T08:10:20.617
10
votes
3
answers

Is there another way to test Enum bit fields?

c# enums bit-manipulation
asked 2010-09-16T20:33:02.223
9
votes
1
answers

Logical, arithmetical bitwise shifts

c bit-manipulation bit-shift
asked 2010-09-13T17:49:30.127
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