bit-twiddling

Fast arbitrary-length and infinite-complement bit sets with ranges, iteration, and bitwise operations

Bitset data structure

low-level library for minimizing the size of your types

Replacement for std::optional with efficient memory usage and additional features.

C API for creation and analysis of binary data

C arithmetic right shift. Small, portable, branchless.

Bit Vector for Humans™

Rust crate to iterate forwards or backwards over the positions of set bits in a word. Useful for working with event flags, some bitboards etc.

Tuppence Programming Language

Bit twiddling tricks in C: count leading zeros, divide by 255

Go Bitstring module

Unsigned N-bit Buffer: A structure that holds a fixed buffer of `bits`-sized unsigned integer elements.

A Kotlin library that provides extensions for bit-twiddling.

Your GPU rediscovers bit hacks: a WebGPU superoptimizer that finds the shortest branchless program for any function of 32-bit words and proves it on all 2^32 inputs

Bit wise, memory efficient tracker.

Sean Anderson's Bit Twiddling Hacks (bit manipulation tricks in C) in one file, with 14 bugs fixed and 6 faster versions. Popcount, parity, log2, bit reversal, Morton codes and more.

CLI tool to examine arbitrary-width unaligned bitfields in binary files