A .NET library for compressed bit set data structures. We have currently included implementations for Run-Length Encoding and Roaring compression algorithms.
You can download the latest release packages from NuGet: https://www.nuget.org/packages/BitsetsNET/ or from GitHub: https://github.com/BitSetsNet/BitSetsNet/releases
using BitsetsNET;
namespace BitSetUsage
{
class Program
{
static void Main(string[] args)
{
int[] indicies1 = new int[] {3,6,10,200,1500};
RoaringBitset rbs1 = RoaringBitset.Create(indicies1);
int[] indicies2 = new int[] { 3, 9, 10, 250, 1700};
RoaringBitset rbs2 = RoaringBitset.Create(indicies2);
RoaringBitset andResult = RoaringBitset.and(rbs1, rbs2); //Creates a new Bitset
rbs1.OrWith(rbs2); //Modifies the bitset in-place
//iterate through the bitset
foreach (int i in rbs1)
{
System.Console.WriteLine(i);
}
}
}
}
- Fork the repository
- Create a feature branch
- Commit your changes
- Push your feature branch
- Submit a pull request
Samy Chambi, Daniel Lemire, Owen Kaser, Robert Godin, Better bitmap performance with Roaring bitmaps, Software: Practice and Experience Volume 46, Issue 5, pages 709โ719, May 2016 http://arxiv.org/abs/1402.6407 This paper used data from http://lemire.me/data/realroaring2014.html
The implementation for the Roaring algorithm is a port from the Roaring Bitmap Java library: https://github.com/RoaringBitmap/RoaringBitmap