package batteries

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A community-maintained standard library extension

Install

Dune Dependency

github.com Readme Edit opam file Versions (14)

Authors

O

OCaml batteries-included team

Maintainers

Sources

v3.7.1.tar.gz

md5=d02c4f044e53edca010de46f9139ce00

sha512=99a5afa3604c4cf0c849c670111d617f7f255acb0da043b73ddffdf0e299948bce52516ee31921f269de6088156c4e0a187e0b931543c6819c6b25966b303281

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

Module `BatRandom.State`Source

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.

Sourcetype t = Random.State.t

The type of PRNG states.

Sourceval make : int array -> t

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

Sourceval make_self_init : unit -> t

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

Sourceval copy : t -> t

Return a copy of the given state.

Sourceval bits : t -> int

Sourceval int : t -> int -> int

Sourceval full_int : t -> int -> int

Sourceval int32 : t -> Int32.t -> Int32.t

Sourceval nativeint : t -> Nativeint.t -> Nativeint.t

Sourceval int64 : t -> Int64.t -> Int64.t

Sourceval float : t -> float -> float

Sourceval bool : t -> bool

Sourceval char : t -> char

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

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

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

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

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

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

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

Sourceval 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.

Sourceval bits32 : t -> Int32.t

Sourceval bits64 : t -> Int64.t

Sourceval nativebits : t -> Nativeint.t

Sourceval 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

Sourceval to_binary_string : t -> string

Sourceval of_binary_string : string -> t