ocaml-integers

The ocaml-integers library provides a number of 8-, 16-, 32- and 64-bit signed and unsigned integer types, together with aliases such as long and size_t whose sizes depend on the host platform.

Features

• The interfaces follow the pattern of the signatures of the Int32, Int64, and Nativeint modules in the OCaml standard library.

  The behaviour also follows the standard library; for example, conversions such as of_int truncate, and operations are "modulo" in general:

  # Unsigned.UInt8.(pred zero);;
  - : Unsigned.UInt8.t = <uint8 255>

• Top-level printers for each type are included

  # Unsigned.UInt32.[of_int 103; one; of_string "1000"];; 
  - : Unsigned.UInt32.t list = [<uint32 103>; <uint32 1>; <uint32 1000>]

• Infix operators are available:

  # Unsigned.UInt32.(Infix.(one + one));;
  - : Unsigned.UInt32.t = <uint32 2>

• Polymorphic operations such as comparison behave correctly:

  # open Unsigned.UInt32
  # zero < one;;
  - : bool = true
  # max_int < zero;;
  - : bool = false

• Integers 32 bits and above are boxed; integers below 32 bits are unboxed.

  # Obj.(tag (repr Unsigned.UInt32.zero));;
  - : int = 255
  # Obj.(tag (repr Unsigned.UInt16.zero));;
  - : int = 1000

Using integers with js_of_ocaml

The integers_stubs_js package provides JavaScript stubs that make it possible to use this library with js_of_ocaml

API documentation