croaring-rs

A Rust wrapper for CRoaring (a C/C++ implementation at https://github.com/RoaringBitmap/CRoaring)

The original java version can be found at https://github.com/RoaringBitmap/RoaringBitmap

Usage example

use croaring::Bitmap;

let mut rb1 = Bitmap::create();
rb1.add(1);
rb1.add(2);
rb1.add(3);
rb1.add(4);
rb1.add(5);
rb1.add(100);
rb1.add(1000);
rb1.run_optimize();

let mut rb2 = Bitmap::create();
rb2.add(3);
rb2.add(4);
rb2.add(1000);
rb2.run_optimize();

let mut rb3 = Bitmap::create();

assert_eq!(rb1.cardinality(), 7);
assert!(rb1.contains(3));

rb1.and_inplace(&rb2);
rb3.add(5);
rb3.or_inplace(&rb1);

let mut rb4 = Bitmap::fast_or(&[&rb1, &rb2, &rb3]);

rb1.and_inplace(&rb2);
println!("{:?}", rb1);

rb3.add(5);
rb3.or_inplace(&rb1);

println!("{:?}", rb1);

rb3.add(5);
rb3.or_inplace(&rb1);

println!("{:?}", rb3.to_vec());
println!("{:?}", rb3);
println!("{:?}", rb4);

rb4 = Bitmap::fast_or(&[&rb1, &rb2, &rb3]);

println!("{:?}", rb4);

Building locally

git clone --recursive https://github.com/saulius/croaring-rs/
cd croaring-rs
cargo build

Tested on Rust stable/beta/nightly and LLVM version 3.8.

Testing

Running unit tests and doc tests:

cargo test

Running benchmark suite (currently on Rust nightly toolchain only):

cargo bench

Documentation

Current documentation is available at https://saulius.github.io/croaring-rs/croaring/