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(* Title: Tools/random_word.ML
Author: Makarius
Simple generator for pseudo-random numbers, using unboxed word
arithmetic only. Unprotected concurrency introduces some true
randomness.
*)
signature Random =
sig
val nextWord : unit -> word
val nextBool : unit -> bool
val nextInt : int -> int (* k -> [0,k) *)
val nextReal : unit -> real (* () -> [0,1) *)
end;
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