package stdlib-random

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Versioned Random module from the OCaml standard library

Install

Dune Dependency

github.com Readme Edit opam file Versions (3)

Authors

Maintainers

F

Florian Angeletti <octa@polychoron.fr>

Sources

stdlib-random-1.1.0.tbz

sha256=8b930182fe680b8b96ad1e082b87a17c8011d95a670f557c703035f04f812559

sha512=c406f3598664593676c0cfcc9f248c0c6114602ab0cd9f2c9ab03243debc534515ab61eb8de8c92bdbbed2a6c916441606263e7e577b1a989da41660315c12dc

doc/stdlib-random.v4/Random4/State/index.html

Module `Random4.State`Source

Sourcetype 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 bits32 : t -> Int32.t

Sourceval bits64 : t -> Int64.t

Sourceval nativebits : t -> Nativeint.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 to_binary_string : t -> string

Serializes the PRNG state into an immutable sequence of bytes. See of_binary_string for deserialization.

The string type is intended here for serialization only, the encoding is not human-readable and may not be printable.

Note that the serialization format may differ across OCaml versions.

since 5.1

Sourceval of_binary_string : string -> t

Deserializes a byte sequence obtained by calling to_binary_string. The resulting PRNG state will produce the same random numbers as the state that was passed as input to to_binary_string.

raises Failure
if the input is not in the expected format.