All Questions
Tagged with bitwise-operators operators
7 questions
3
votes
1
answer
957
views
How do you set and check a single bit in a programming language that does not support bitwise operations?
I'm using a programming language (more a scripting language) that does not support any bitwise operators like AND, OR, XOR, NOT (and shift as well).
Common arithmetic and logical operations like + - *...
- 279
14
votes
3
answers
42k
views
Speeds of << >> multiplication and division
You can use << to multiply and >> to divide numbers in python when I time them I find using the binary shift way of doing it is 10x faster than dividing or multiplying the regular way.
...
- 327
0
votes
3
answers
747
views
Using Power of 2 numbers to represent types
Let's say that we have some values, represented by power of 2:
TYPE_1 = 1
TYPE_2 = 2
TYPE_3 = 4
TYPE_4 = 8
...
I need to store some of these types in one value.
Example:
To represent TYPE_1 with ...
- 1,077
73
votes
2
answers
9k
views
Why do bitwise operators have lower priority than comparisons?
Could someone explain the rationale, why in a bunch of most popular languages (see note below) comparison operators (==, !=, <, >, <=, >=) have higher priority than bitwise operators (&, |, ^...
- 5,206
8
votes
4
answers
29k
views
Ternary operator (condition ? foo : bar) and the XOR (^) operator
I have read in a recent code review that both ternary operator (condition ? foo : bar) and the XOR operator ^ are rarely used in Java. Is it true?
If yes, is this because they are less readable? or ...
- 183
20
votes
15
answers
5k
views
What are bit operators good for? [closed]
Programming languages often come with various bit operators (e.g. bitwise left- and right shift, bitwise AND, OR, XOR...). These don't get used though very much, or at least such has my experience ...
- 11.2k
22
votes
6
answers
32k
views
What are the advantages of using bitwise operations? [closed]
Following reading the latest CodeProject newsletter, I came across this article on bitwise operations. It makes for interesting reading, and I can certainly see the benefit of checking if an integer ...
- 6,559