Source file index.ml

(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2019,2020 DaiLambda, Inc. <contact@dailambda.jp>            *)
(*                                                                           *)
(* Permission is hereby granted, free of charge, to any person obtaining a   *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
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(* Software is furnished to do so, subject to the following conditions:      *)
(*                                                                           *)
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(* in all copies or substantial portions of the Software.                    *)
(*                                                                           *)
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(* DEALINGS IN THE SOFTWARE.                                                 *)
(*                                                                           *)
(*****************************************************************************)

type t = int

let (+) = (+)
let (-) = (-)
let ( * ) = ( * )
let (/) = (/)
let pred = pred
let succ = succ

let max_int = Stdint.Uint32.(to_int max_int)

let zero = 0

let one = 1

let min i j = if compare i j = -1 then i else j
let max i j = if compare i j = -1 then j else i

let zero_then_none x = if x = zero then None else Some x

let compare (x : int) y = Stdlib.compare x y

module Set = Set.Make(struct
  type nonrec t = t
  let compare = compare
end)

module Map = Map.Make(struct
  type nonrec t = t
  let compare = compare
end)

let pp = Format.pp_print_int

let to_int x = x
let of_int x = x

let to_uint32 = Stdint.Uint32.of_int
let of_uint32 = Stdint.Uint32.to_int

let to_int64 = Int64.of_int
let of_int64 = Int64.to_int

module Unsafe = struct
  let of_int = of_int
  let to_int = to_int
  let to_int32 = Int32.of_int
  let of_int32 = Int32.to_int
end

let to_bytes_big_endian i = Stdint.Int64.to_bytes_big_endian @@ Int64.of_int i
let of_bytes_big_endian b s = Int64.to_int @@ Stdint.Int64.of_bytes_big_endian b s