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(* ========================================================================= *)
(* MOSCOW ML SPECIFIC FUNCTIONS *)
(* Copyright (c) 2002 Joe Leslie-Hurd, distributed under the BSD License *)
(* ========================================================================= *)
structure Portable :> Portable =
struct
(* ------------------------------------------------------------------------- *)
(* The ML implementation. *)
(* ------------------------------------------------------------------------- *)
val ml = "mosml";
(* ------------------------------------------------------------------------- *)
(* Pointer equality using the run-time system. *)
(* ------------------------------------------------------------------------- *)
local
val address : 'a -> int = Obj.magic
in
fun pointerEqual (x : 'a, y : 'a) = address x = address y
end;
(* ------------------------------------------------------------------------- *)
(* Marking critical sections of code. *)
(* ------------------------------------------------------------------------- *)
fun critical f () = f ();
(* ------------------------------------------------------------------------- *)
(* Generating random values. *)
(* ------------------------------------------------------------------------- *)
local
val gen = Random.newgenseed 1.0;
in
fun randomInt max = Random.range (0,max) gen;
fun randomReal () = Random.random gen;
end;
fun randomBool () = randomInt 2 = 0;
fun randomWord () =
let
val h = Word.fromInt (randomInt 65536)
and l = Word.fromInt (randomInt 65536)
in
Word.orb (Word.<< (h,0w16), l)
end;
(* ------------------------------------------------------------------------- *)
(* Timing function applications. *)
(* ------------------------------------------------------------------------- *)
val time = Mosml.time;
end
(* ------------------------------------------------------------------------- *)
(* Ensuring that interruptions (SIGINTs) are actually seen by the *)
(* linked executable as Interrupt exceptions. *)
(* ------------------------------------------------------------------------- *)
prim_val catch_interrupt : bool -> unit = 1 "sys_catch_break";
val _ = catch_interrupt true;
(* ------------------------------------------------------------------------- *)
(* Forcing fully qualified names of functions with generic names. *)
(* ------------------------------------------------------------------------- *)
(*BasicDebug
val explode = ()
and foldl = ()
and foldr = ()
and implode = ()
and map = ()
and null = ()
and print = ()
and rev = ();
*)
(* ------------------------------------------------------------------------- *)
(* Ad-hoc upgrading of the Moscow ML basis library. *)
(* ------------------------------------------------------------------------- *)
fun Real_isFinite (_ : real) = true;
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