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val init : int -> unit
Initialize the generator, using the argument as a seed. The same seed will always yield the same sequence of numbers.
val full_init : int array -> unit
Same as init
but takes more data as seed.
val self_init : unit -> unit
Initialize the generator with a more-or-less random seed chosen in a system-dependent way.
val bits : unit -> int
Return 30 random bits in a nonnegative integer.
val int : int -> int
Random.int bound
returns a random integer between 0 (inclusive) andbound
(exclusive).bound
must be more than 0 and less than 230.
val float : float -> float
Random.float bound
returns a random floating-point number between 0 (inclusive) andbound
(exclusive). Ifbound
is negative, the result is negative. Ifbound
is 0, the result is 0.
type state;;
Values of this type are used to store the current state of the generator.
val get_state : unit -> state;;
Returns the current state of the generator. This is useful for checkpointing computations that use the PRNG.
val set_state : state -> unit;;
Resets the state of the generator to some previous state returned by
get_state
.