imneme

#ifndef XOSHIRO_HPP_INCLUDED
#define XOSHIRO_HPP_INCLUDED 1

/*
 * A C++ implementation of a family of Xoshiro generators.
 *
 * See:
 *     https://arxiv.org/abs/1805.01407
 *     http://xoshiro.di.unimi.it/xoshiro256plus.c
 *     http://xoshiro.di.unimi.it/xoshiro256starstar.c

imneme

#ifndef SPLITMIX_HPP_INCLUDED
#define SPLITMIX_HPP_INCLUDED 1

/*
 * A C++ implementation of SplitMix
 *   Original design by Guy L. Steele, Jr., Doug Lea and Christine H. Flood
 *   Described in _Fast splittable pseudorandom number generators_
 *       http://dx.doi.org/10.1145/2714064.2660195 and implemented in
 *       Java 8 as SplittableRandom
 *   Based on code from the original paper, with revisions based on changes

imneme

#ifndef ARC4_HPP_INCLUDED
#define ARC4_HPP_INCLUDED 1

/*
 * A C++ port of the OpenBSD Arc4 random number generator
 *
 * The MIT License (MIT)
 *
 * Copyright (C) 1996 David Mazieres <dm@lcs.mit.edu> for the OpenBSD project
 * C++ Port Copyright (c) 2014-18 Melissa E. O'Neill

imneme

#ifndef CHACHA_HPP_INCLUDED
#define CHACHA_HPP_INCLUDED 1

/*
 * A C++ version of ChaCha PRNG (*modified* from Orson Peters original code)
 *
 * Changes Copyright (c) 2017-18 Melissa E. O'Neill, licence as below.
 *
 * Changes compared to original 2015 version:
 *   - Some formatting fixes

imneme

/*
 * Seeding Bias Test
 *
 *   - Runs through all possible seeds and examines the output for
 *     bias.  Doing so is only practical for 32-bit (or less) seeds
 *     and 32-bit (or less) output.
 *
 * Compilation note:
 *
 *   - You need to define the following preprocessor symbols to compile this

imneme

/*
 * Show self-similarity issues with Vigna's xoshiro256**
 *
 * Originally posted in a NumPy developers discussion by Tyge Løvset
 * but simplified to only mix 32 outputs.
 *
 * Compile, and then test with PractRand by running
 *
 * ./xoshiro256-similarity \ 
 *   | ./RNG_test stdin64 -te 1 -tlmin 15 -tlmax 50 -tlmaxonly -multithreaded