bitarray Questions
10
Solved
I am making a analytics system, the API call would provide a Unique User ID, but it's not in sequence and too sparse.
I need to give each Unique User ID an auto increment id to mark a analytics da...
Fumigant asked 5/12, 2011 at 10:38
6
Solved
Suppose I define some bitarray in python using the following code:
from bitarray import bitarray
d=bitarray('0'*30)
d[5]=1
How can I convert d to its integer representation?
In addition, how can...
Individualist asked 26/2, 2017 at 3:47
7
Solved
I've been wondering what the most efficient way to reverse the order of a BitArray in C#. To be clear, I don't want to inverse the Bitarray by calling .Not(), I want to reverse the order of the bit...
10
Solved
What is the best way of implementing a bit array in JavaScript?
Huntingdon asked 7/8, 2011 at 12:16
1
After running the command in Windows 10 - python -m pip install web3 the following error appears - "Failed to build bitarray cytoolz lru-dict".
I resolved the issue by installing Visual S...
4
1). var bitValue = (byteValue & (1 << bitNumber)) != 0;
2). using System.Collections.BitArray with a Get(int index) method
What is faster?
In what situations for the .NET projects BitA...
Sebastian asked 9/5, 2013 at 21:51
11
I am implementing a library where I am extensively using the .Net BitArray class and need an equivalent to the Java BitSet.Cardinality() method, i.e. a method which returns the number of bits set. ...
2
Solved
I'm just starting to use the bitarray package in python, and trying to make a bitarray from an integer gives me really confusing results:
>>> import bitarray
>>> bitarray.bitarra...
Anchorage asked 21/6, 2011 at 7:50
6
Solved
I have a big char *str where the first 8 chars (which equals 64 bits if I'm not wrong), represents a bitmap. Is there any way to iterate through these 8 chars and see which bits are 0? I'm having a...
12
Solved
I need a compact representation of an array of booleans, does Python have a builtin bitfield type or will I need to find an alternate solution?
Charlottetown asked 27/9, 2008 at 2:47
4
Solved
Is there any predefined function available to convert a byte into BitArray?
One way would be to inspect every bit of the byte value and then perform bitwise operation. I was wondering if there is ...
6
Solved
What's the best way to store a bit array in C++ (no Boost, just standard containers), representing, for example, a volume allocation bitmap?
I thought std::vector<bool> was a great idea, but ...
Valtin asked 20/10, 2011 at 0:35
7
Solved
I'm not sure the exact term for what I'm trying to do. I have an 8x8 block of bits stored in 8 bytes, each byte stores one row. When I'm finished, I'd like each byte to store one column.
For exampl...
3
Solved
I have some code that manages data received from an array of sensors. The PIC that controls the sensors uses 8 SAR-ADCs in parallel to read 4096 data bytes. It means it reads the most significant b...
Leticia asked 13/2, 2014 at 4:4
9
Solved
I have a BitArray with the length of 8, and I need a function to convert it to a byte. How to do it?
Specifically, I need a correct function of ConvertToByte:
BitArray bit = new BitArray(new bool...
Semen asked 18/2, 2009 at 7:13
3
Solved
I am dealing with very large list of booleans in C++, around 2^N items of N booleans each. Because memory is critical in such situation, i.e. an exponential growth, I would like to build a N-bits l...
Radian asked 31/10, 2017 at 19:55
7
Solved
In an assignment I am currently working on we need to work with bit vectors, but I am very unsure of how to do this in Python. They should be able to be from 4 bits to 20 bits. I have never worked ...
Nesmith asked 27/1, 2010 at 14:59
2
Solved
I Have A String Of Binary Number Like temp = "0101110011" And I Want To Save That As File this Temp Have 10 char And How Can I Save This string To file With 10 Bit Length ?
void Save_Data(string t...
Monumentalize asked 21/1, 2017 at 10:10
5
Solved
I have the following:
int num=Integer.parseInt(lineArray[0]);
byte numBit= num & 0xFF;
Is there any very simple way to convert numBit to a bit array? Or even better, is there a way to bypass...
Culpa asked 5/8, 2012 at 21:59
4
Solved
I'm currently working on a project, in which I need bit sets. I'm using an array of uint64_t's for the bitset.
My current problem is, that whenever I want to set or check a bit I need to do an ope...
Personable asked 28/6, 2016 at 19:37
5
Solved
I have
var previous = new BitArray(new bool[]{true});
var current = new BitArray(new bool[]{false});
I want to concatenate them. I have already tried:
var next = new BitArray(previous.Count + c...
6
I have a long sequence of bits stored in an array of unsigned long integers, like this
struct bit_array
{
int size; /* nr of bits */
unsigned long *array; /* the container that stores bits */
}
...
2
Solved
What is the advantage of using a Bitarray when you can store your bool values in a bool[]?
System.Collections.BitArray biArray = new System.Collections.BitArray(8);
biArray[4] = true;
bool[] boArr...
3
Solved
How can I unset the most significant setted bit of a word (e.g. 0x00556844 -> 0x00156844)? There is a __builtin_clz in gcc, but it just counts the zeroes, which is unneeded to me. Also, how should ...
Mahler asked 15/5, 2011 at 20:52
8
Solved
I actually have an answer to my question but it is not parallelized so I am interested in ways to improve the algorithm. Anyway it might be useful as-is for some people.
int Until = 20000000;
BitA...
Corking asked 27/8, 2008 at 18:54
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