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