Fast CRC32

This is a mirror of my CRC32 library hosted at https://create.stephan-brumme.com/crc32/

Features in a nutshell:

• C++ code, single file
• the fastest algorithms need about 1 CPU cycle per byte
• endian-aware
• support for multi-threaded computation
• runs even on Arduino, Raspberry Pi, etc.
• quite long posting about it on https://create.stephan-brumme.com/crc32/, describing each implemented algorithm in detail

Algorithms:

• bitwise

• branch-free bitwise

• half-byte

• tableless full-byte

• Sarwate's original algorithm

• slicing-by-4

• slicing-by-8

• slicing-by-16

• crc32_combine() "merges" two indepedently computed CRC32 values which is the basis for even faster multi-threaded calculation

See my website https://create.stephan-brumme.com/crc32/ for documentation, code examples and a benchmark.