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-rw-r--r--rand/rand_xoshiro/src/common.rs243
-rw-r--r--rand/rand_xoshiro/src/lib.rs94
-rw-r--r--rand/rand_xoshiro/src/splitmix64.rs149
-rw-r--r--rand/rand_xoshiro/src/xoroshiro128plus.rs130
-rw-r--r--rand/rand_xoshiro/src/xoroshiro128starstar.rs127
-rw-r--r--rand/rand_xoshiro/src/xoroshiro64star.rs102
-rw-r--r--rand/rand_xoshiro/src/xoroshiro64starstar.rs101
-rw-r--r--rand/rand_xoshiro/src/xoshiro128plus.rs112
-rw-r--r--rand/rand_xoshiro/src/xoshiro128starstar.rs111
-rw-r--r--rand/rand_xoshiro/src/xoshiro256plus.rs131
-rw-r--r--rand/rand_xoshiro/src/xoshiro256starstar.rs128
-rw-r--r--rand/rand_xoshiro/src/xoshiro512plus.rs122
-rw-r--r--rand/rand_xoshiro/src/xoshiro512starstar.rs122
13 files changed, 0 insertions, 1672 deletions
diff --git a/rand/rand_xoshiro/src/common.rs b/rand/rand_xoshiro/src/common.rs
deleted file mode 100644
index b188dd6..0000000
--- a/rand/rand_xoshiro/src/common.rs
+++ /dev/null
@@ -1,243 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-/// Initialize a RNG from a `u64` seed using `SplitMix64`.
-macro_rules! from_splitmix {
- ($seed:expr) => { {
- let mut rng = crate::SplitMix64::seed_from_u64($seed);
- Self::from_rng(&mut rng).unwrap()
- } }
-}
-
-/// Apply the ** scrambler used by some RNGs from the xoshiro family.
-macro_rules! starstar_u64 {
- ($x:expr) => {
- $x.wrapping_mul(5).rotate_left(7).wrapping_mul(9)
- }
-}
-
-/// Apply the ** scrambler used by some RNGs from the xoshiro family.
-macro_rules! starstar_u32 {
- ($x:expr) => {
- $x.wrapping_mul(0x9E3779BB).rotate_left(5).wrapping_mul(5)
- }
-}
-
-/// Implement a jump function for an RNG from the xoshiro family.
-macro_rules! impl_jump {
- (u32, $self:expr, [$j0:expr, $j1:expr]) => {
- const JUMP: [u32; 2] = [$j0, $j1];
- let mut s0 = 0;
- let mut s1 = 0;
- for j in &JUMP {
- for b in 0..32 {
- if (j & 1 << b) != 0 {
- s0 ^= $self.s0;
- s1 ^= $self.s1;
- }
- $self.next_u32();
- }
- }
- $self.s0 = s0;
- $self.s1 = s1;
- };
- (u64, $self:expr, [$j0:expr, $j1:expr]) => {
- const JUMP: [u64; 2] = [$j0, $j1];
- let mut s0 = 0;
- let mut s1 = 0;
- for j in &JUMP {
- for b in 0..64 {
- if (j & 1 << b) != 0 {
- s0 ^= $self.s0;
- s1 ^= $self.s1;
- }
- $self.next_u64();
- }
- }
- $self.s0 = s0;
- $self.s1 = s1;
- };
- (u32, $self:expr, [$j0:expr, $j1:expr, $j2:expr, $j3:expr]) => {
- const JUMP: [u32; 4] = [$j0, $j1, $j2, $j3];
- let mut s0 = 0;
- let mut s1 = 0;
- let mut s2 = 0;
- let mut s3 = 0;
- for j in &JUMP {
- for b in 0..32 {
- if (j & 1 << b) != 0 {
- s0 ^= $self.s[0];
- s1 ^= $self.s[1];
- s2 ^= $self.s[2];
- s3 ^= $self.s[3];
- }
- $self.next_u32();
- }
- }
- $self.s[0] = s0;
- $self.s[1] = s1;
- $self.s[2] = s2;
- $self.s[3] = s3;
- };
- (u64, $self:expr, [$j0:expr, $j1:expr, $j2:expr, $j3:expr]) => {
- const JUMP: [u64; 4] = [$j0, $j1, $j2, $j3];
- let mut s0 = 0;
- let mut s1 = 0;
- let mut s2 = 0;
- let mut s3 = 0;
- for j in &JUMP {
- for b in 0..64 {
- if (j & 1 << b) != 0 {
- s0 ^= $self.s[0];
- s1 ^= $self.s[1];
- s2 ^= $self.s[2];
- s3 ^= $self.s[3];
- }
- $self.next_u64();
- }
- }
- $self.s[0] = s0;
- $self.s[1] = s1;
- $self.s[2] = s2;
- $self.s[3] = s3;
- };
- (u64, $self:expr, [$j0:expr, $j1:expr, $j2:expr, $j3:expr,
- $j4:expr, $j5:expr, $j6:expr, $j7:expr]) => {
- const JUMP: [u64; 8] = [$j0, $j1, $j2, $j3, $j4, $j5, $j6, $j7];
- let mut s = [0; 8];
- for j in &JUMP {
- for b in 0..64 {
- if (j & 1 << b) != 0 {
- s[0] ^= $self.s[0];
- s[1] ^= $self.s[1];
- s[2] ^= $self.s[2];
- s[3] ^= $self.s[3];
- s[4] ^= $self.s[4];
- s[5] ^= $self.s[5];
- s[6] ^= $self.s[6];
- s[7] ^= $self.s[7];
- }
- $self.next_u64();
- }
- }
- $self.s = s;
- };
-}
-
-/// Implement the xoroshiro iteration.
-macro_rules! impl_xoroshiro_u32 {
- ($self:expr) => {
- $self.s1 ^= $self.s0;
- $self.s0 = $self.s0.rotate_left(26) ^ $self.s1 ^ ($self.s1 << 9);
- $self.s1 = $self.s1.rotate_left(13);
- }
-}
-
-/// Implement the xoroshiro iteration.
-macro_rules! impl_xoroshiro_u64 {
- ($self:expr) => {
- $self.s1 ^= $self.s0;
- $self.s0 = $self.s0.rotate_left(24) ^ $self.s1 ^ ($self.s1 << 16);
- $self.s1 = $self.s1.rotate_left(37);
- }
-}
-
-/// Implement the xoshiro iteration for `u32` output.
-macro_rules! impl_xoshiro_u32 {
- ($self:expr) => {
- let t = $self.s[1] << 9;
-
- $self.s[2] ^= $self.s[0];
- $self.s[3] ^= $self.s[1];
- $self.s[1] ^= $self.s[2];
- $self.s[0] ^= $self.s[3];
-
- $self.s[2] ^= t;
-
- $self.s[3] = $self.s[3].rotate_left(11);
- }
-}
-
-/// Implement the xoshiro iteration for `u64` output.
-macro_rules! impl_xoshiro_u64 {
- ($self:expr) => {
- let t = $self.s[1] << 17;
-
- $self.s[2] ^= $self.s[0];
- $self.s[3] ^= $self.s[1];
- $self.s[1] ^= $self.s[2];
- $self.s[0] ^= $self.s[3];
-
- $self.s[2] ^= t;
-
- $self.s[3] = $self.s[3].rotate_left(45);
- }
-}
-
-/// Implement the large-state xoshiro iteration.
-macro_rules! impl_xoshiro_large {
- ($self:expr) => {
- let t = $self.s[1] << 11;
-
- $self.s[2] ^= $self.s[0];
- $self.s[5] ^= $self.s[1];
- $self.s[1] ^= $self.s[2];
- $self.s[7] ^= $self.s[3];
- $self.s[3] ^= $self.s[4];
- $self.s[4] ^= $self.s[5];
- $self.s[0] ^= $self.s[6];
- $self.s[6] ^= $self.s[7];
-
- $self.s[6] ^= t;
-
- $self.s[7] = $self.s[7].rotate_left(21);
- }
-}
-
-/// Map an all-zero seed to a different one.
-macro_rules! deal_with_zero_seed {
- ($seed:expr, $Self:ident) => {
- if $seed.iter().all(|&x| x == 0) {
- return $Self::seed_from_u64(0);
- }
- }
-}
-
-/// 512-bit seed for a generator.
-///
-/// This wrapper is necessary, because some traits required for a seed are not
-/// implemented on large arrays.
-#[derive(Clone)]
-pub struct Seed512(pub [u8; 64]);
-
-use core;
-impl Seed512 {
- /// Return an iterator over the seed.
- pub fn iter(&self) -> core::slice::Iter<u8> {
- self.0.iter()
- }
-}
-
-impl core::fmt::Debug for Seed512 {
- fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
- self.0[..].fmt(f)
- }
-}
-
-impl Default for Seed512 {
- fn default() -> Seed512 {
- Seed512([0; 64])
- }
-}
-
-impl AsMut<[u8]> for Seed512 {
- fn as_mut(&mut self) -> &mut [u8] {
- &mut self.0
- }
-}
-
diff --git a/rand/rand_xoshiro/src/lib.rs b/rand/rand_xoshiro/src/lib.rs
deleted file mode 100644
index 3047e92..0000000
--- a/rand/rand_xoshiro/src/lib.rs
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! This crate implements the [xoshiro] family of pseudorandom number generators
-//! designed by David Blackman and Sebastiano Vigna. They feature high
-//! perfomance and a small state and superseed the previous xorshift-based
-//! generators. However, they are no cryptographically secure and their output
-//! can be predicted by observing a few samples.
-//!
-//! The following generators are implemented:
-//!
-//! # 64-bit generators
-//! - [`Xoshiro256StarStar`]: Recommended for all purposes. Excellent speed and
-//! a state space (256 bits) large enough for any parallel application.
-//! - [`Xoshiro256Plus`]: Recommended for generating 64-bit floating-point
-//! numbers. About 15% faster than `Xoshiro256StarStar`, but has a [low linear
-//! complexity] in the lowest bits (which are discarded when generating
-//! floats), making it fail linearity tests. This is unlikely to have any
-//! impact in practise.
-//! - [`Xoroshiro128StarStar`]: An alternative to `Xoshiro256StarStar`, having
-//! the same speed but using half the state. Only suited for low-scale parallel
-//! applications.
-//! - [`Xoroshiro128Plus`]: An alternative to `Xoshiro256Plus`, having the same
-//! speed but using half the state. Only suited for low-scale parallel
-//! applications. Has a [low linear complexity] in the lowest bits (which are
-//! discarded when generating floats), making it fail linearity tests. This is
-//! unlikely to have any impact in practise.
-//! - [`Xoshiro512StarStar`]: An alternative to `Xoshiro256StarStar` with more
-//! state and the same speed.
-//! - [`Xoshiro512Plus`]: An alternative to `Xoshiro512Plus` with more
-//! state and the same speed. Has a [low linear complexity] in the lowest bits
-//! (which are discarded when generating floats), making it fail linearity
-//! tests. This is unlikely to have any impact in practise.
-//! - [`SplitMix64`]: Recommended for initializing generators of the xoshiro
-//! familiy from a 64-bit seed. Used for implementing `seed_from_u64`.
-//!
-//! # 32-bit generators
-//! - [`Xoshiro128StarStar`]: Recommended for all purposes. Excellent speed.
-//! - [`Xoshiro128Plus`]: Recommended for generating 32-bit floating-point
-//! numbers. Faster than `Xoshiro128StarStar`, but has a [low linear
-//! complexity] in the lowest bits (which are discarded when generating
-//! floats), making it fail linearity tests. This is unlikely to have any
-//! impact in practise.
-//! - [`Xoroshiro64StarStar`]: An alternative to `Xoshiro128StarStar`, having
-//! the same speed but using half the state.
-//! - [`Xoroshiro64Star`]: An alternative to `Xoshiro128Plus`, having the
-//! same speed but using half the state. Has a [low linear complexity] in the
-//! lowest bits (which are discarded when generating floats), making it fail
-//! linearity tests. This is unlikely to have any impact in practise.
-//!
-//! [xoshiro]: http://xoshiro.di.unimi.it/
-//! [low linear complexity]: http://xoshiro.di.unimi.it/lowcomp.php
-
-#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png",
- html_favicon_url = "https://www.rust-lang.org/favicon.ico",
- html_root_url = "https://docs.rs/rand_xoshiro/0.3.1")]
-
-#![deny(missing_docs)]
-#![deny(missing_debug_implementations)]
-#![allow(clippy::unreadable_literal)]
-#![no_std]
-
-#[macro_use]
-mod common;
-mod splitmix64;
-mod xoshiro128starstar;
-mod xoshiro128plus;
-mod xoshiro256starstar;
-mod xoshiro256plus;
-mod xoshiro512starstar;
-mod xoshiro512plus;
-mod xoroshiro128plus;
-mod xoroshiro128starstar;
-mod xoroshiro64starstar;
-mod xoroshiro64star;
-
-pub use rand_core;
-pub use splitmix64::SplitMix64;
-pub use xoshiro128starstar::Xoshiro128StarStar;
-pub use xoshiro128plus::Xoshiro128Plus;
-pub use xoshiro256starstar::Xoshiro256StarStar;
-pub use xoshiro256plus::Xoshiro256Plus;
-pub use common::Seed512;
-pub use xoshiro512starstar::Xoshiro512StarStar;
-pub use xoshiro512plus::Xoshiro512Plus;
-pub use xoroshiro128plus::Xoroshiro128Plus;
-pub use xoroshiro128starstar::Xoroshiro128StarStar;
-pub use xoroshiro64starstar::Xoroshiro64StarStar;
-pub use xoroshiro64star::Xoroshiro64Star;
diff --git a/rand/rand_xoshiro/src/splitmix64.rs b/rand/rand_xoshiro/src/splitmix64.rs
deleted file mode 100644
index 3a41450..0000000
--- a/rand/rand_xoshiro/src/splitmix64.rs
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::le::read_u64_into;
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::{RngCore, SeedableRng, Error};
-
-/// A splitmix64 random number generator.
-///
-/// The splitmix algorithm is not suitable for cryptographic purposes, but is
-/// very fast and has a 64 bit state.
-///
-/// The algorithm used here is translated from [the `splitmix64.c`
-/// reference source code](http://xoshiro.di.unimi.it/splitmix64.c) by
-/// Sebastiano Vigna. For `next_u32`, a more efficient mixing function taken
-/// from [`dsiutils`](http://dsiutils.di.unimi.it/) is used.
-#[allow(missing_copy_implementations)]
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct SplitMix64 {
- x: u64,
-}
-
-const PHI: u64 = 0x9e3779b97f4a7c15;
-
-impl RngCore for SplitMix64 {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- self.x = self.x.wrapping_add(PHI);
- let mut z = self.x;
- // David Stafford's
- // (http://zimbry.blogspot.com/2011/09/better-bit-mixing-improving-on.html)
- // "Mix4" variant of the 64-bit finalizer in Austin Appleby's
- // MurmurHash3 algorithm.
- z = (z ^ (z >> 33)).wrapping_mul(0x62A9D9ED799705F5);
- z = (z ^ (z >> 28)).wrapping_mul(0xCB24D0A5C88C35B3);
- (z >> 32) as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- self.x = self.x.wrapping_add(PHI);
- let mut z = self.x;
- z = (z ^ (z >> 30)).wrapping_mul(0xbf58476d1ce4e5b9);
- z = (z ^ (z >> 27)).wrapping_mul(0x94d049bb133111eb);
- z ^ (z >> 31)
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-impl SeedableRng for SplitMix64 {
- type Seed = [u8; 8];
-
- /// Create a new `SplitMix64`.
- fn from_seed(seed: [u8; 8]) -> SplitMix64 {
- let mut state = [0; 1];
- read_u64_into(&seed, &mut state);
- SplitMix64 {
- x: state[0],
- }
- }
-
- /// Seed a `SplitMix64` from a `u64`.
- fn seed_from_u64(seed: u64) -> SplitMix64 {
- SplitMix64::from_seed(seed.to_le_bytes())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = SplitMix64::seed_from_u64(1477776061723855037);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/splitmix64.c
- let expected : [u64 ; 50]= [
- 1985237415132408290, 2979275885539914483, 13511426838097143398,
- 8488337342461049707, 15141737807933549159, 17093170987380407015,
- 16389528042912955399, 13177319091862933652, 10841969400225389492,
- 17094824097954834098, 3336622647361835228, 9678412372263018368,
- 11111587619974030187, 7882215801036322410, 5709234165213761869,
- 7799681907651786826, 4616320717312661886, 4251077652075509767,
- 7836757050122171900, 5054003328188417616, 12919285918354108358,
- 16477564761813870717, 5124667218451240549, 18099554314556827626,
- 7603784838804469118, 6358551455431362471, 3037176434532249502,
- 3217550417701719149, 9958699920490216947, 5965803675992506258,
- 12000828378049868312, 12720568162811471118, 245696019213873792,
- 8351371993958923852, 14378754021282935786, 5655432093647472106,
- 5508031680350692005, 8515198786865082103, 6287793597487164412,
- 14963046237722101617, 3630795823534910476, 8422285279403485710,
- 10554287778700714153, 10871906555720704584, 8659066966120258468,
- 9420238805069527062, 10338115333623340156, 13514802760105037173,
- 14635952304031724449, 15419692541594102413,
- ];
- for &e in expected.iter() {
- assert_eq!(rng.next_u64(), e);
- }
- }
-
- #[test]
- fn next_u32() {
- let mut rng = SplitMix64::seed_from_u64(10);
- // These values were produced with the reference implementation:
- // http://dsiutils.di.unimi.it/dsiutils-2.5.1-src.tar.gz
- let expected : [u32 ; 100]= [
- 3930361779, 4016923089, 4113052479, 925926767, 1755287528,
- 802865554, 954171070, 3724185978, 173676273, 1414488795, 12664133,
- 1784889697, 1303817078, 261610523, 941280008, 2571813643,
- 2954453492, 378291111, 2546873158, 3923319175, 645257028,
- 3881821278, 2681538690, 3037029984, 1999958137, 1853970361,
- 2989951788, 2126166628, 839962987, 3989679659, 3656977858,
- 684284364, 1673258011, 170979192, 3037622326, 1600748179,
- 1780764218, 1141430714, 4139736875, 3336905707, 2262051600,
- 3830850262, 2430765325, 1073032139, 1668888979, 2716938970,
- 4102420032, 40305196, 386350562, 2754480591, 622869439, 2129598760,
- 2306038241, 4218338739, 412298926, 3453855056, 3061469690,
- 4284292697, 994843708, 1591016681, 414726151, 1238182607, 18073498,
- 1237631493, 351884714, 2347486264, 2488990876, 802846256, 645670443,
- 957607012, 3126589776, 1966356370, 3036485766, 868696717,
- 2808613630, 2070968151, 1025536863, 1743949425, 466212687,
- 2994327271, 209776458, 1246125124, 3344380309, 2203947859,
- 968313105, 2805485302, 197484837, 3472483632, 3931823935,
- 3288490351, 4165666529, 3671080416, 689542830, 1272555356,
- 1039141475, 3984640460, 4142959054, 2252788890, 2459379590,
- 991872507,
- ];
- for &e in expected.iter() {
- assert_eq!(rng.next_u32(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoroshiro128plus.rs b/rand/rand_xoshiro/src/xoroshiro128plus.rs
deleted file mode 100644
index a7b4ebc..0000000
--- a/rand/rand_xoshiro/src/xoroshiro128plus.rs
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core;
-use rand_core::le::read_u64_into;
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::{RngCore, SeedableRng};
-
-/// A xoroshiro128+ random number generator.
-///
-/// The xoroshiro128+ algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has good statistical properties, besides a low linear
-/// complexity in the lowest bits.
-///
-/// The algorithm used here is translated from [the `xoroshiro128plus.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoroshiro128plus.c) by
-/// David Blackman and Sebastiano Vigna.
-#[allow(missing_copy_implementations)]
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoroshiro128Plus {
- s0: u64,
- s1: u64,
-}
-
-impl Xoroshiro128Plus {
- /// Jump forward, equivalently to 2^64 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^64 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoroshiro128Plus;
- ///
- /// let rng1 = Xoroshiro128Plus::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u64, self, [0xdf900294d8f554a5, 0x170865df4b3201fc]);
- }
-
- /// Jump forward, equivalently to 2^96 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^32 starting points, from each of which
- /// `jump()` will generate 2^32 non-overlapping subsequences for parallel
- /// distributed computations.
- pub fn long_jump(&mut self) {
- impl_jump!(u64, self, [0xd2a98b26625eee7b, 0xdddf9b1090aa7ac1]);
- }
-}
-
-impl RngCore for Xoroshiro128Plus {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- // The two lowest bits have some linear dependencies, so we use the
- // upper bits instead.
- (self.next_u64() >> 32) as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- let r = self.s0.wrapping_add(self.s1);
- impl_xoroshiro_u64!(self);
- r
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-impl SeedableRng for Xoroshiro128Plus {
- type Seed = [u8; 16];
-
- /// Create a new `Xoroshiro128Plus`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- fn from_seed(seed: [u8; 16]) -> Xoroshiro128Plus {
- deal_with_zero_seed!(seed, Self);
- let mut s = [0; 2];
- read_u64_into(&seed, &mut s);
-
- Xoroshiro128Plus {
- s0: s[0],
- s1: s[1],
- }
- }
-
- /// Seed a `Xoroshiro128Plus` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoroshiro128Plus {
- from_splitmix!(seed)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoroshiro128Plus::from_seed(
- [1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro128starstar.c
- let expected = [
- 3, 412333834243, 2360170716294286339, 9295852285959843169,
- 2797080929874688578, 6019711933173041966, 3076529664176959358,
- 3521761819100106140, 7493067640054542992, 920801338098114767,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u64(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoroshiro128starstar.rs b/rand/rand_xoshiro/src/xoroshiro128starstar.rs
deleted file mode 100644
index 21823f5..0000000
--- a/rand/rand_xoshiro/src/xoroshiro128starstar.rs
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core;
-use rand_core::le::read_u64_into;
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::{RngCore, SeedableRng};
-
-/// A xoroshiro128** random number generator.
-///
-/// The xoroshiro128** algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has excellent statistical properties.
-///
-/// The algorithm used here is translated from [the `xoroshiro128starstar.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoroshiro128starstar.c) by
-/// David Blackman and Sebastiano Vigna.
-#[allow(missing_copy_implementations)]
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoroshiro128StarStar {
- s0: u64,
- s1: u64,
-}
-
-impl Xoroshiro128StarStar {
- /// Jump forward, equivalently to 2^64 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^64 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoroshiro128StarStar;
- ///
- /// let rng1 = Xoroshiro128StarStar::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u64, self, [0xdf900294d8f554a5, 0x170865df4b3201fc]);
- }
-
- /// Jump forward, equivalently to 2^96 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^32 starting points, from each of which
- /// `jump()` will generate 2^32 non-overlapping subsequences for parallel
- /// distributed computations.
- pub fn long_jump(&mut self) {
- impl_jump!(u64, self, [0xd2a98b26625eee7b, 0xdddf9b1090aa7ac1]);
- }
-}
-
-impl RngCore for Xoroshiro128StarStar {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- self.next_u64() as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- let r = starstar_u64!(self.s0);
- impl_xoroshiro_u64!(self);
- r
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-impl SeedableRng for Xoroshiro128StarStar {
- type Seed = [u8; 16];
-
- /// Create a new `Xoroshiro128StarStar`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- fn from_seed(seed: [u8; 16]) -> Xoroshiro128StarStar {
- deal_with_zero_seed!(seed, Self);
- let mut s = [0; 2];
- read_u64_into(&seed, &mut s);
-
- Xoroshiro128StarStar {
- s0: s[0],
- s1: s[1],
- }
- }
-
- /// Seed a `Xoroshiro128StarStar` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoroshiro128StarStar {
- from_splitmix!(seed)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoroshiro128StarStar::from_seed(
- [1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro128starstar.c
- let expected = [
- 5760, 97769243520, 9706862127477703552, 9223447511460779954,
- 8358291023205304566, 15695619998649302768, 8517900938696309774,
- 16586480348202605369, 6959129367028440372, 16822147227405758281,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u64(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoroshiro64star.rs b/rand/rand_xoshiro/src/xoroshiro64star.rs
deleted file mode 100644
index 6bb708a..0000000
--- a/rand/rand_xoshiro/src/xoroshiro64star.rs
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core;
-use rand_core::le::read_u32_into;
-use rand_core::impls::{fill_bytes_via_next, next_u64_via_u32};
-use rand_core::{RngCore, SeedableRng};
-
-/// A xoroshiro64* random number generator.
-///
-/// The xoroshiro64* algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has good statistical properties, besides a low linear
-/// complexity in the lowest bits.
-///
-/// The algorithm used here is translated from [the `xoroshiro64star.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoroshiro64star.c) by
-/// David Blackman and Sebastiano Vigna.
-#[allow(missing_copy_implementations)]
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoroshiro64Star {
- s0: u32,
- s1: u32,
-}
-
-impl RngCore for Xoroshiro64Star {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- let r = self.s0.wrapping_mul(0x9E3779BB);
- impl_xoroshiro_u32!(self);
- r
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- next_u64_via_u32(self)
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-impl SeedableRng for Xoroshiro64Star {
- type Seed = [u8; 8];
-
- /// Create a new `Xoroshiro64Star`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- fn from_seed(seed: [u8; 8]) -> Xoroshiro64Star {
- deal_with_zero_seed!(seed, Self);
- let mut s = [0; 2];
- read_u32_into(&seed, &mut s);
-
- Xoroshiro64Star {
- s0: s[0],
- s1: s[1],
- }
- }
-
- /// Seed a `Xoroshiro64Star` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoroshiro64Star {
- from_splitmix!(seed)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoroshiro64Star::from_seed([1, 0, 0, 0, 2, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro64star.c
- let expected = [
- 2654435771, 327208753, 4063491769, 4259754937, 261922412, 168123673,
- 552743735, 1672597395, 1031040050, 2755315674,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u32(), e);
- }
- }
-
- #[test]
- fn zero_seed() {
- let mut rng = Xoroshiro64Star::seed_from_u64(0);
- assert_ne!(rng.next_u64(), 0);
- }
-}
diff --git a/rand/rand_xoshiro/src/xoroshiro64starstar.rs b/rand/rand_xoshiro/src/xoroshiro64starstar.rs
deleted file mode 100644
index 8e1aea1..0000000
--- a/rand/rand_xoshiro/src/xoroshiro64starstar.rs
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core;
-use rand_core::le::read_u32_into;
-use rand_core::impls::{fill_bytes_via_next, next_u64_via_u32};
-use rand_core::{RngCore, SeedableRng};
-
-/// A xoroshiro64** random number generator.
-///
-/// The xoshiro64** algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has excellent statistical properties.
-///
-/// The algorithm used here is translated from [the `xoroshiro64starstar.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoroshiro64starstar.c) by
-/// David Blackman and Sebastiano Vigna.
-#[allow(missing_copy_implementations)]
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoroshiro64StarStar {
- s0: u32,
- s1: u32,
-}
-
-impl RngCore for Xoroshiro64StarStar {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- let r = starstar_u32!(self.s0);
- impl_xoroshiro_u32!(self);
- r
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- next_u64_via_u32(self)
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-impl SeedableRng for Xoroshiro64StarStar {
- type Seed = [u8; 8];
-
- /// Create a new `Xoroshiro64StarStar`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- fn from_seed(seed: [u8; 8]) -> Xoroshiro64StarStar {
- deal_with_zero_seed!(seed, Self);
- let mut s = [0; 2];
- read_u32_into(&seed, &mut s);
-
- Xoroshiro64StarStar {
- s0: s[0],
- s1: s[1],
- }
- }
-
- /// Seed a `Xoroshiro64StarStar` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoroshiro64StarStar {
- from_splitmix!(seed)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoroshiro64StarStar::from_seed([1, 0, 0, 0, 2, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro64starstar.c
- let expected = [
- 3802928447, 813792938, 1618621494, 2955957307, 3252880261,
- 1129983909, 2539651700, 1327610908, 1757650787, 2763843748,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u32(), e);
- }
- }
-
- #[test]
- fn zero_seed() {
- let mut rng = Xoroshiro64StarStar::seed_from_u64(0);
- assert_ne!(rng.next_u64(), 0);
- }
-}
diff --git a/rand/rand_xoshiro/src/xoshiro128plus.rs b/rand/rand_xoshiro/src/xoshiro128plus.rs
deleted file mode 100644
index 7cbd612..0000000
--- a/rand/rand_xoshiro/src/xoshiro128plus.rs
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::impls::{next_u64_via_u32, fill_bytes_via_next};
-use rand_core::le::read_u32_into;
-use rand_core::{SeedableRng, RngCore, Error};
-
-/// A xoshiro128+ random number generator.
-///
-/// The xoshiro128+ algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has good statistical properties, besides a low linear
-/// complexity in the lowest bits.
-///
-/// The algorithm used here is translated from [the `xoshiro128starstar.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoshiro128starstar.c) by
-/// David Blackman and Sebastiano Vigna.
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoshiro128Plus {
- s: [u32; 4],
-}
-
-impl Xoshiro128Plus {
- /// Jump forward, equivalently to 2^64 calls to `next_u32()`.
- ///
- /// This can be used to generate 2^64 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoroshiro128StarStar;
- ///
- /// let rng1 = Xoroshiro128StarStar::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u32, self, [0x8764000b, 0xf542d2d3, 0x6fa035c3, 0x77f2db5b]);
- }
-}
-
-impl SeedableRng for Xoshiro128Plus {
- type Seed = [u8; 16];
-
- /// Create a new `Xoshiro128Plus`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- #[inline]
- fn from_seed(seed: [u8; 16]) -> Xoshiro128Plus {
- deal_with_zero_seed!(seed, Self);
- let mut state = [0; 4];
- read_u32_into(&seed, &mut state);
- Xoshiro128Plus { s: state }
- }
-
- /// Seed a `Xoshiro128Plus` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoshiro128Plus {
- from_splitmix!(seed)
- }
-}
-
-impl RngCore for Xoshiro128Plus {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- let result_plus = self.s[0].wrapping_add(self.s[3]);
- impl_xoshiro_u32!(self);
- result_plus
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- next_u64_via_u32(self)
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoshiro128Plus::from_seed(
- [1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 4, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro128plus.c
- let expected = [
- 5, 12295, 25178119, 27286542, 39879690, 1140358681, 3276312097,
- 4110231701, 399823256, 2144435200,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u32(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoshiro128starstar.rs b/rand/rand_xoshiro/src/xoshiro128starstar.rs
deleted file mode 100644
index 7af1e50..0000000
--- a/rand/rand_xoshiro/src/xoshiro128starstar.rs
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::impls::{next_u64_via_u32, fill_bytes_via_next};
-use rand_core::le::read_u32_into;
-use rand_core::{SeedableRng, RngCore, Error};
-
-/// A xoshiro128** random number generator.
-///
-/// The xoshiro128** algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has excellent statistical properties.
-///
-/// The algorithm used here is translated from [the `xoshiro128starstar.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoshiro128starstar.c) by
-/// David Blackman and Sebastiano Vigna.
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoshiro128StarStar {
- s: [u32; 4],
-}
-
-impl Xoshiro128StarStar {
- /// Jump forward, equivalently to 2^64 calls to `next_u32()`.
- ///
- /// This can be used to generate 2^64 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoroshiro128StarStar;
- ///
- /// let rng1 = Xoroshiro128StarStar::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u32, self, [0x8764000b, 0xf542d2d3, 0x6fa035c3, 0x77f2db5b]);
- }
-}
-
-impl SeedableRng for Xoshiro128StarStar {
- type Seed = [u8; 16];
-
- /// Create a new `Xoshiro128StarStar`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- #[inline]
- fn from_seed(seed: [u8; 16]) -> Xoshiro128StarStar {
- deal_with_zero_seed!(seed, Self);
- let mut state = [0; 4];
- read_u32_into(&seed, &mut state);
- Xoshiro128StarStar { s: state }
- }
-
- /// Seed a `Xoshiro128StarStar` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoshiro128StarStar {
- from_splitmix!(seed)
- }
-}
-
-impl RngCore for Xoshiro128StarStar {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- let result_starstar = starstar_u64!(self.s[0]);
- impl_xoshiro_u32!(self);
- result_starstar
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- next_u64_via_u32(self)
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoshiro128StarStar::from_seed(
- [1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 4, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro128starstar.c
- let expected = [
- 5760, 40320, 70819200, 3297914139, 2480851620, 1792823698,
- 4118739149, 1251203317, 1581886583, 1721184582,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u32(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoshiro256plus.rs b/rand/rand_xoshiro/src/xoshiro256plus.rs
deleted file mode 100644
index 396f588..0000000
--- a/rand/rand_xoshiro/src/xoshiro256plus.rs
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::le::read_u64_into;
-use rand_core::{SeedableRng, RngCore, Error};
-
-/// A xoshiro256+ random number generator.
-///
-/// The xoshiro256+ algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has good statistical properties, besides a low linear
-/// complexity in the lowest bits.
-///
-/// The algorithm used here is translated from [the `xoshiro256plus.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoshiro256plus.c) by
-/// David Blackman and Sebastiano Vigna.
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoshiro256Plus {
- s: [u64; 4],
-}
-
-impl Xoshiro256Plus {
- /// Jump forward, equivalently to 2^128 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^128 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoshiro256Plus;
- ///
- /// let rng1 = Xoshiro256Plus::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u64, self, [
- 0x180ec6d33cfd0aba, 0xd5a61266f0c9392c,
- 0xa9582618e03fc9aa, 0x39abdc4529b1661c
- ]);
- }
-
- /// Jump forward, equivalently to 2^192 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^64 starting points, from each of which
- /// `jump()` will generate 2^64 non-overlapping subsequences for parallel
- /// distributed computations.
- pub fn long_jump(&mut self) {
- impl_jump!(u64, self, [
- 0x76e15d3efefdcbbf, 0xc5004e441c522fb3,
- 0x77710069854ee241, 0x39109bb02acbe635
- ]);
- }
-}
-
-impl SeedableRng for Xoshiro256Plus {
- type Seed = [u8; 32];
-
- /// Create a new `Xoshiro256Plus`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- #[inline]
- fn from_seed(seed: [u8; 32]) -> Xoshiro256Plus {
- deal_with_zero_seed!(seed, Self);
- let mut state = [0; 4];
- read_u64_into(&seed, &mut state);
- Xoshiro256Plus { s: state }
- }
-
- /// Seed a `Xoshiro256Plus` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoshiro256Plus {
- from_splitmix!(seed)
- }
-}
-
-impl RngCore for Xoshiro256Plus {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- // The lowest bits have some linear dependencies, so we use the
- // upper bits instead.
- (self.next_u64() >> 32) as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- let result_plus = self.s[0].wrapping_add(self.s[3]);
- impl_xoshiro_u64!(self);
- result_plus
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoshiro256Plus::from_seed(
- [1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0,
- 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro256plus.c
- let expected = [
- 5, 211106232532999, 211106635186183, 9223759065350669058,
- 9250833439874351877, 13862484359527728515, 2346507365006083650,
- 1168864526675804870, 34095955243042024, 3466914240207415127,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u64(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoshiro256starstar.rs b/rand/rand_xoshiro/src/xoshiro256starstar.rs
deleted file mode 100644
index 2cc2029..0000000
--- a/rand/rand_xoshiro/src/xoshiro256starstar.rs
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::le::read_u64_into;
-use rand_core::{SeedableRng, RngCore, Error};
-
-/// A xoshiro256** random number generator.
-///
-/// The xoshiro256** algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has excellent statistical properties.
-///
-/// The algorithm used here is translated from [the `xoshiro256starstar.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoshiro256starstar.c) by
-/// David Blackman and Sebastiano Vigna.
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoshiro256StarStar {
- s: [u64; 4],
-}
-
-impl Xoshiro256StarStar {
- /// Jump forward, equivalently to 2^128 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^128 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoshiro256StarStar;
- ///
- /// let rng1 = Xoshiro256StarStar::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u64, self, [
- 0x180ec6d33cfd0aba, 0xd5a61266f0c9392c,
- 0xa9582618e03fc9aa, 0x39abdc4529b1661c
- ]);
- }
-
- /// Jump forward, equivalently to 2^192 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^64 starting points, from each of which
- /// `jump()` will generate 2^64 non-overlapping subsequences for parallel
- /// distributed computations.
- pub fn long_jump(&mut self) {
- impl_jump!(u64, self, [
- 0x76e15d3efefdcbbf, 0xc5004e441c522fb3,
- 0x77710069854ee241, 0x39109bb02acbe635
- ]);
- }
-}
-
-impl SeedableRng for Xoshiro256StarStar {
- type Seed = [u8; 32];
-
- /// Create a new `Xoshiro256StarStar`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- #[inline]
- fn from_seed(seed: [u8; 32]) -> Xoshiro256StarStar {
- deal_with_zero_seed!(seed, Self);
- let mut state = [0; 4];
- read_u64_into(&seed, &mut state);
- Xoshiro256StarStar { s: state }
- }
-
- /// Seed a `Xoshiro256StarStar` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoshiro256StarStar {
- from_splitmix!(seed)
- }
-}
-
-impl RngCore for Xoshiro256StarStar {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- self.next_u64() as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- let result_starstar = starstar_u64!(self.s[1]);
- impl_xoshiro_u64!(self);
- result_starstar
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoshiro256StarStar::from_seed(
- [1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0,
- 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0]);
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro128starstar.c
- let expected = [
- 11520, 0, 1509978240, 1215971899390074240, 1216172134540287360,
- 607988272756665600, 16172922978634559625, 8476171486693032832,
- 10595114339597558777, 2904607092377533576,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u64(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoshiro512plus.rs b/rand/rand_xoshiro/src/xoshiro512plus.rs
deleted file mode 100644
index 4b589f2..0000000
--- a/rand/rand_xoshiro/src/xoshiro512plus.rs
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::le::read_u64_into;
-use rand_core::{SeedableRng, RngCore, Error};
-
-use crate::Seed512;
-
-/// A xoshiro512+ random number generator.
-///
-/// The xoshiro512+ algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has good statistical properties, besides a low linear
-/// complexity in the lowest bits.
-///
-/// The algorithm used here is translated from [the `xoshiro512plus.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoshiro512plus.c) by
-/// David Blackman and Sebastiano Vigna.
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoshiro512Plus {
- s: [u64; 8],
-}
-
-impl Xoshiro512Plus {
- /// Jump forward, equivalently to 2^256 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^256 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoshiro512Plus;
- ///
- /// let rng1 = Xoshiro512Plus::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u64, self, [
- 0x33ed89b6e7a353f9, 0x760083d7955323be, 0x2837f2fbb5f22fae,
- 0x4b8c5674d309511c, 0xb11ac47a7ba28c25, 0xf1be7667092bcc1c,
- 0x53851efdb6df0aaf, 0x1ebbc8b23eaf25db
- ]);
- }
-}
-
-impl SeedableRng for Xoshiro512Plus {
- type Seed = Seed512;
-
- /// Create a new `Xoshiro512Plus`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- #[inline]
- fn from_seed(seed: Seed512) -> Xoshiro512Plus {
- deal_with_zero_seed!(seed, Self);
- let mut state = [0; 8];
- read_u64_into(&seed.0, &mut state);
- Xoshiro512Plus { s: state }
- }
-
- /// Seed a `Xoshiro512Plus` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoshiro512Plus {
- from_splitmix!(seed)
- }
-}
-
-impl RngCore for Xoshiro512Plus {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- self.next_u64() as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- let result_plus = self.s[0].wrapping_add(self.s[2]);
- impl_xoshiro_large!(self);
- result_plus
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoshiro512Plus::from_seed(Seed512(
- [1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0,
- 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0,
- 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0,
- 7, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0]));
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro512plus.c
- let expected = [
- 4, 8, 4113, 25169936, 52776585412635, 57174648719367,
- 9223482039571869716, 9331471677901559830, 9340533895746033672,
- 14078399799840753678,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u64(), e);
- }
- }
-}
diff --git a/rand/rand_xoshiro/src/xoshiro512starstar.rs b/rand/rand_xoshiro/src/xoshiro512starstar.rs
deleted file mode 100644
index 2db9ac1..0000000
--- a/rand/rand_xoshiro/src/xoshiro512starstar.rs
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright 2018 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="serde1")] use serde::{Serialize, Deserialize};
-use rand_core::impls::fill_bytes_via_next;
-use rand_core::le::read_u64_into;
-use rand_core::{SeedableRng, RngCore, Error};
-
-use crate::Seed512;
-
-/// A xoshiro512** random number generator.
-///
-/// The xoshiro512** algorithm is not suitable for cryptographic purposes, but
-/// is very fast and has excellent statistical properties.
-///
-/// The algorithm used here is translated from [the `xoshiro512starstar.c`
-/// reference source code](http://xoshiro.di.unimi.it/xoshiro512starstar.c) by
-/// David Blackman and Sebastiano Vigna.
-#[derive(Debug, Clone)]
-#[cfg_attr(feature="serde1", derive(Serialize, Deserialize))]
-pub struct Xoshiro512StarStar {
- s: [u64; 8],
-}
-
-impl Xoshiro512StarStar {
- /// Jump forward, equivalently to 2^256 calls to `next_u64()`.
- ///
- /// This can be used to generate 2^256 non-overlapping subsequences for
- /// parallel computations.
- ///
- /// ```
- /// use rand_xoshiro::rand_core::SeedableRng;
- /// use rand_xoshiro::Xoshiro512StarStar;
- ///
- /// let rng1 = Xoshiro512StarStar::seed_from_u64(0);
- /// let mut rng2 = rng1.clone();
- /// rng2.jump();
- /// let mut rng3 = rng2.clone();
- /// rng3.jump();
- /// ```
- pub fn jump(&mut self) {
- impl_jump!(u64, self, [
- 0x33ed89b6e7a353f9, 0x760083d7955323be, 0x2837f2fbb5f22fae,
- 0x4b8c5674d309511c, 0xb11ac47a7ba28c25, 0xf1be7667092bcc1c,
- 0x53851efdb6df0aaf, 0x1ebbc8b23eaf25db
- ]);
- }
-}
-
-
-impl SeedableRng for Xoshiro512StarStar {
- type Seed = Seed512;
-
- /// Create a new `Xoshiro512StarStar`. If `seed` is entirely 0, it will be
- /// mapped to a different seed.
- #[inline]
- fn from_seed(seed: Seed512) -> Xoshiro512StarStar {
- deal_with_zero_seed!(seed, Self);
- let mut state = [0; 8];
- read_u64_into(&seed.0, &mut state);
- Xoshiro512StarStar { s: state }
- }
-
- /// Seed a `Xoshiro512StarStar` from a `u64` using `SplitMix64`.
- fn seed_from_u64(seed: u64) -> Xoshiro512StarStar {
- from_splitmix!(seed)
- }
-}
-
-impl RngCore for Xoshiro512StarStar {
- #[inline]
- fn next_u32(&mut self) -> u32 {
- self.next_u64() as u32
- }
-
- #[inline]
- fn next_u64(&mut self) -> u64 {
- let result_starstar = starstar_u64!(self.s[1]);
- impl_xoshiro_large!(self);
- result_starstar
- }
-
- #[inline]
- fn fill_bytes(&mut self, dest: &mut [u8]) {
- fill_bytes_via_next(self, dest);
- }
-
- #[inline]
- fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
- self.fill_bytes(dest);
- Ok(())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn reference() {
- let mut rng = Xoshiro512StarStar::from_seed(Seed512(
- [1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0,
- 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0,
- 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0,
- 7, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0]));
- // These values were produced with the reference implementation:
- // http://xoshiro.di.unimi.it/xoshiro512starstar.c
- let expected = [
- 11520, 0, 23040, 23667840, 144955163520, 303992986974289920,
- 25332796375735680, 296904390158016, 13911081092387501979,
- 15304787717237593024,
- ];
- for &e in &expected {
- assert_eq!(rng.next_u64(), e);
- }
- }
-}
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-24 12:46:33 +0000