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) and bound (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) and bound (exclusive). If bound is negative, the result is negative. If bound 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.