package fmlib_browser

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in-package search v0.2.0

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Generate Random Numbers

type 'a t

Generator, generating random values of type 'a.

val constant : 'a -> 'a t

constant a Generate the same value every time.

val (>>=) : 'a t -> ('a -> 'b t) -> 'b t

rand >>= f Generate the random value a using the generator rand, and then use f a to generate a random value b.

val let* : 'a t -> ('a -> 'b t) -> 'b t

let* a = rand in f a is the same as rand >>= f.

val map : ('a -> 'b) -> 'a t -> 'b t

map f rand Use rand to generate a random value and then map it by f.

val int : int -> int t

int bound A random generator which generates numbers n satisfying 0 <= n < bound.

Precondition: 0 < bound

val float : float -> float t

float bound A random generator which generates numbers n satisfying 0.0 <= n <= bound.

Precondition: 0 <= bound

val bool : bool t

Generate a random boolean value.

val choose : 'a list -> 'a t

uniform a lst Generate a random value of the list lst.