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(* Copyright (C) 2009 Matthew Fluet.
* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh
* Jagannathan, and Stephen Weeks.
* Copyright (C) 1997-2000 NEC Research Institute.
*
* MLton is released under a HPND-style license.
* See the file MLton-LICENSE for details.
*)
signature MLTON_RANDOM =
sig
(* Return a random alphanumeric character. *)
val alphaNumChar: unit -> char
(* Return a string of random alphanumeric characters of specified
* length.
*)
val alphaNumString: int -> string
(* Get the next pseudrandom. *)
val rand: unit -> word
(* Use /dev/random to get a word. Useful as an arg to srand.
* Return NONE if /dev/random can't be read.
*)
val seed: unit -> word option
(* Set the seed used by rand. *)
val srand: word -> unit
(* Use /dev/urandom to get a word. Useful as an arg to srand.
* Return NONE if /dev/urandom can't be read.
*)
val useed: unit -> word option
end
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