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OCaml Bitarrays

Build Status

01001111 01000011 01100001 01101101 01101100

A fixed size bitarray type implemented in OCaml using unboxed 63 bit integers. This should technically work on both 64bit and 32bit architectures, but on a 32bit architecture it just uses a wrapped 64bit integer so that it respects the same semantics of the 63bit integers. Therefore, it is likely that all performance benefits will be lost if using a 32bit machine.

Building and Testing

Run dune build. The library can be tested with utop by executing dune utop src/. Running dune runtest runs the unit tests in the test/ directory.

Install

Run dune install.

Rationale

  • OCaml does not come packaged with support for arbitrary sized bitarrays. There already exists a couple libraries that provide this functionality, but they do not implement any arithmetic operations and their logical operations seem limited.
  • Having arithmetic operations part of the bitarray is nice since then this essentially provides the functionality of any sized integers with an extremely compact representation.
  • Implementing low-level contructs in a high-level language is fun.

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Fixed sized bitarrays for OCaml.

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