created_at2023-02-05 22:56:40.532289
updated_at2024-05-04 16:14:52.716444
descriptionA Rust library for generating random and pseudo-random numbers based on the Mersenne Twister algorithm
Sebastien Rousseau (sebastienrousseau)




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Random (VRD)

A Rust library for generating high-quality random numbers based on the Mersenne Twister algorithm.

Part of the Mini Functions family of libraries.

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Overview 📖

Random (VRD) is a Rust library for generating high-quality random numbers based on the Mersenne Twister algorithm.

The Random struct in this library provides a robust interface for generating a variety of random numbers using the Mersenne Twister algorithm. Additionally, the MersenneTwisterConfig struct allows for advanced configuration of the algorithm.

The Random (VRD) is used to generate random numbers using the Mersenne Twister algorithm. It generates pseudorandom integers uniformly distributed in 0..(2^32 - 1) starting from any odd seed in 0..(2^32 - 1).

The index is incremented after each random number is generated. When the index reaches 624, the array is reinitialized and the index is reset to 0.

Features ✨

  • Create new random number generator and seed it with a value
  • Designed for speed and efficiency
  • Generate random 32-bit unsigned integers within a given range
  • Provide random numbers of different types, including booleans, bytes, chars, doubles, floats, integers, and unsigned integers
  • Mutate the state of the random number generator
  • Produce pseudo-random number sequences that are different from each other
  • Regulate the randomness of the generated numbers, including the seed value and the number of bits used
  • Select a random element from a slice of values
  • Generate random numbers from various probability distributions, including uniform, normal, exponential, and Poisson

Getting Started 🚀

It takes just a few minutes to get up and running with Random (VRD).


To install Random (VRD), you need to have the Rust toolchain installed on your machine. You can install the Rust toolchain by following the instructions on the Rust website.

Once you have the Rust toolchain installed, you can install Random (VRD) using the following command:

cargo install vrd

Add the following to your Cargo.toml file:

vrd = "0.0.7"
serde = { version = "1.0.160", features = ["derive"] }


use vrd::random::Random;

let mut rng = Random::new();
let rand_int = rng.int(1, 10);
println!("Random integer between 1 and 10: {}", rand_int);

let rand_float = rng.float();
println!("Random float: {}", rand_float);

let rand_bytes = rng.bytes(10);
println!("Random bytes: {:?}", rand_bytes);


To get started with Random (VRD), you can use the examples provided in the examples directory of the project.

To run the examples, clone the repository and run the following command in your terminal from the project root directory.

cargo run --example vrd

Macros 🦀

The Random (VRD) library provides a set of macros that simplify the usage of the library. These macros offer a convenient way to generate random numbers of different types and distributions.

Here are some of the available macros:

  • rand_bool!(rng, probability): Generate a random boolean with the provided probability.
  • rand_bytes!(rng, length): Generate a vector of random bytes with the specified length.
  • rand_char!(rng): Generate a random character within the range 'a'..='z'.
  • rand_choose!(rng, values): Generate a random element from a slice of values.
  • rand_float!(rng): Generate a random float.
  • rand_int!(rng, min, max): Generate a random integer within the given range.
  • rand_uint!(rng, min, max): Generate a random 32-bit unsigned integer within the given range.
  • rand_double!(rng): Generate a random double.
  • rand_string!(rng, length): Generate a random string of the specified length.
  • rand_alphanumeric!(rng): Generate a random alphanumeric character.
  • rand_shuffle!(rng, slice): Shuffle a mutable slice randomly.
  • rand_weighted_choice!(rng, choices, weights): Select a random element from a slice based on the provided weights.
  • rand_normal!(rng, mu, sigma): Generate a normally distributed random number with the given mean and standard deviation.
  • rand_exponential!(rng, rate): Generate a random number from the exponential distribution with the given rate parameter.
  • rand_poisson!(rng, mean): Generate a random number from a Poisson distribution with the specified mean parameter.

For more details on how to use these macros, please refer to the documentation.

Platform support

Random (VRD) is supported and tested on the following platforms:

Tier 1 platforms 🏆

Operating System Target Description
Linux aarch64-unknown-linux-gnu 64-bit Linux systems on ARM architecture
Linux i686-unknown-linux-gnu 32-bit Linux (kernel 3.2+, glibc 2.17+)
Linux x86_64-unknown-linux-gnu 64-bit Linux (kernel 2.6.32+, glibc 2.11+)
macOS x86_64-apple-darwin 64-bit macOS (10.7 Lion or later)
Windows i686-pc-windows-gnu 32-bit Windows (7 or later)
Windows i686-pc-windows-msvc 32-bit Windows (7 or later)
Windows x86_64-pc-windows-gnu 64-bit Windows (7 or later)
Windows x86_64-pc-windows-msvc 64-bit Windows (7 or later)

Tier 2 platforms 🥈

Operating System Target Description
64-bit Linux x86_64-unknown-linux-musl 64-bit Linux (kernel 2.6.32+, musl libc)
ARM64 Linux aarch64-unknown-linux-musl 64-bit Linux systems on ARM architecture
ARM64 macOS aarch64-apple-darwin 64-bit macOS on Apple Silicon
ARM64 Windows aarch64-pc-windows-msvc 64-bit Windows (aarch64-pc-windows-msvc)
ARMv6 Linux arm-unknown-linux-gnueabi ARMv6 Linux (kernel 3.2, glibc 2.17)
ARMv6 Linux, hardfloat arm-unknown-linux-gnueabihf ARMv7 Linux, hardfloat (kernel 3.2, glibc 2.17)
ARMv7 Linux, hardfloat armv7-unknown-linux-gnueabihf ARMv7 Linux, hardfloat (kernel 3.2, glibc 2.17)
FreeBSD x86_64-unknown-freebsd 64-bit FreeBSD on x86-64
MIPS (LE) Linux mipsel-unknown-linux-gnu MIPSel Linux (kernel 2.6.32+, glibc 2.11+)
MIPS Linux mips-unknown-linux-gnu MIPS Linux (kernel 2.6.32+, glibc 2.11+)
MIPS64 (LE) Linux mips64el-unknown-linux-gnuabi64 MIPS64el Linux (kernel 2.6.32+, glibc 2.11+)
MIPS64 Linux mips64-unknown-linux-gnuabi64 MIPS64 Linux (kernel 2.6.32+, glibc 2.11+)
NetBSD x86_64-unknown-netbsd 64-bit NetBSD on x86-64
PowerPC Linux powerpc-unknown-linux-gnu PowerPC Linux (kernel 3.2, glibc 2.17)
PPC64 Linux powerpc64-unknown-linux-gnu PowerPC64 Linux (kernel 3.2, glibc 2.17)
PPC64LE Linux powerpc64le-unknown-linux-gnu PowerPC64le Linux (kernel 3.2, glibc 2.17)
RISC-V Linux riscv64gc-unknown-linux-gnu RISC-V Linux (kernel 3.2, glibc 2.17)
S390x Linux s390x-unknown-linux-gnu s390x Linux (kernel 3.2, glibc 2.17)

The GitHub Actions shows the platforms in which the Random (VRD) library tests are run.

Documentation 📚

For detailed documentation, please visit:

Semantic Versioning Policy 🚥

For transparency into our release cycle and in striving to maintain backward compatibility, Random (VRD) follows semantic versioning.

License 📝

The project is licensed under the terms of both the MIT license and the Apache License (Version 2.0).

Contribution 🤝

We welcome all people who want to contribute. Please see the contributing instructions for more information.

Contributions in any form (issues, pull requests, etc.) to this project must adhere to the Rust's Code of Conduct.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Acknowledgements 💙

A big thank you to all the awesome contributors of vrd for their help and support.

A special thank you goes to the Rust Reddit community for providing a lot of useful suggestions on how to improve this project.

Made with ❤️ by Sébastien Rousseau

Commit count: 75

cargo fmt