package batteries

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A community-maintained standard library extension

Install

Dune Dependency

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Authors

O

OCaml batteries-included team

Maintainers

Sources

v3.6.0.tar.gz

md5=1bcb27dfbd130eb057561196ef851649

sha512=2a56611b09a5f1cba6457539f8b6bc87a5f2a5454b36cdb39f6e0d6a5dac6db179aab1ba87c74dd49cc41df31a9a96feb349028ea41df7371ecb47f4d9dfafc4

doc/batteries.unthreaded/BatRandom/State/index.html

Module `BatRandom.State`

Manipulate the current state of the random generator.

This allows using one or several deterministic PRNGs, even in a multi-threaded program, without interference from other parts of the program.

type t = Random.State.t

The type of PRNG states.

val make : int array -> t

Create a new state and initialize it with the given seed.

val make_self_init : unit -> t

Create a new state and initialize it with a system-dependent low-entropy seed.

val copy : t -> t

Return a copy of the given state.

val bits : t -> int

val int : t -> int -> int

val full_int : t -> int -> int

val int32 : t -> Int32.t -> Int32.t

val nativeint : t -> Nativeint.t -> Nativeint.t

val int64 : t -> Int64.t -> Int64.t

val float : t -> float -> float

val bool : t -> bool

val char : t -> char

val enum_bits : t -> unit -> int BatEnum.t

val enum_int : t -> int -> int BatEnum.t

val enum_bool : t -> unit -> bool BatEnum.t

val enum_float : t -> float -> float BatEnum.t

val enum_int32 : t -> Int32.t -> Int32.t BatEnum.t

val enum_int64 : t -> Int64.t -> Int64.t BatEnum.t

val enum_nativeint : t -> Nativeint.t -> Nativeint.t BatEnum.t

val enum_char : t -> unit -> char BatEnum.t

These functions are the same as the basic functions, except that they use (and update) the given PRNG state instead of the default one.

val bits32 : t -> Int32.t

These functions are the same as the basic functions, except that they use (and update) the given PRNG state instead of the default one.

val bits64 : t -> Int64.t

val nativebits : t -> Nativeint.t

val split : t -> t

Draw a fresh PRNG state from the given PRNG state. (The given PRNG state is modified.) The new PRNG is statistically independent from the given PRNG. Data can be drawn from both PRNGs, in any order, without risk of correlation. Both PRNGs can be split later, arbitrarily many times.

since 3.6.0 and OCaml 5.0.0