48 lines
2.1 KiB
OCaml
48 lines
2.1 KiB
OCaml
(***********************************************************************)
|
|
(* *)
|
|
(* Objective Caml *)
|
|
(* *)
|
|
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
|
|
(* *)
|
|
(* Copyright 1996 Institut National de Recherche en Informatique et *)
|
|
(* en Automatique. All rights reserved. This file is distributed *)
|
|
(* under the terms of the GNU Library General Public License. *)
|
|
(* *)
|
|
(***********************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
(* Module [Int32]: 32-bit integers *)
|
|
|
|
external neg : int32 -> int32 = "%int32_neg"
|
|
external add : int32 -> int32 -> int32 = "%int32_add"
|
|
external sub : int32 -> int32 -> int32 = "%int32_sub"
|
|
external mul : int32 -> int32 -> int32 = "%int32_mul"
|
|
external div : int32 -> int32 -> int32 = "%int32_div"
|
|
external rem : int32 -> int32 -> int32 = "%int32_mod"
|
|
external logand : int32 -> int32 -> int32 = "%int32_and"
|
|
external logor : int32 -> int32 -> int32 = "%int32_or"
|
|
external logxor : int32 -> int32 -> int32 = "%int32_xor"
|
|
external shift_left : int32 -> int -> int32 = "%int32_lsl"
|
|
external shift_right : int32 -> int -> int32 = "%int32_asr"
|
|
external shift_right_logical : int32 -> int -> int32 = "%int32_lsr"
|
|
external of_int : int -> int32 = "%int32_of_int"
|
|
external to_int : int32 -> int = "%int32_to_int"
|
|
external of_float : float -> int32 = "int32_of_float"
|
|
external to_float : int32 -> float = "int32_to_float"
|
|
|
|
let zero = of_int 0
|
|
let one = of_int 1
|
|
let minus_one = of_int (-1)
|
|
let succ n = add n one
|
|
let pred n = sub n one
|
|
let abs n = if n >= zero then n else neg n
|
|
let min_int = shift_left one 31
|
|
let max_int = sub min_int one
|
|
let lognot n = logxor n minus_one
|
|
|
|
external format : string -> int32 -> string = "int32_format"
|
|
let to_string n = format "%d" n
|
|
|
|
external of_string : string -> int32 = "int32_of_string"
|