Struct Xoshiro256pp 

pub struct Xoshiro256pp { /* private fields */ }

Rust implementation of the xoshiro256++ PRNG.

This generator is very fast, high-quality, and small, but not cryptographically secure.

More information can be found at: https://prng.di.unimi.it/.

Trait Implementations

impl Debug for Xoshiro256pp

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Xoshiro256pp

fn default() -> Self

Returns the “default value” for a type.

impl Generator for Xoshiro256pp

fn try_new() -> Result<Self, Error>

Creates a generator using randomness provided by the OS.

fn u64(&mut self) -> u64

Returns a uniformly distributed u64 in the interval [0, 2⁶⁴).

fn new() -> Self

Creates a generator using randomness provided by the OS.

fn usize(&mut self) -> usize

Returns a uniformly distributed usize in the interval [0, usize::MAX].

fn u32(&mut self) -> u32

Returns a uniformly distributed u32 in the interval [0, 2³²).

fn u16(&mut self) -> u16

Returns a uniformly distributed u16 in the interval [0, 2¹⁶).

fn u8(&mut self) -> u8

Returns a uniformly distributed u8 in the interval [0, 2⁸).

fn bits(&mut self, bit_count: u32) -> u64

Returns a uniformly distributed u64 in the interval [0, 2^bit_count).

fn bool(&mut self) -> bool

A simple coinflip, returning a bool that has a 50% chance of being true.

fn bound(&mut self, max: u64) -> u64

Returns a uniformly distributed u64 in the interval [0, max).

fn bound_inclusive(&mut self, max: u64) -> u64

Returns a uniformly distributed u64 in the interval [0, max].

fn range(&mut self, min: i64, max: i64) -> i64

Returns a uniformly distributed i64 in the interval [min, max)

fn range_inclusive(&mut self, min: i64, max: i64) -> i64

Returns a uniformly distributed i64 in the interval [min, max]

fn f64(&mut self) -> f64

Returns a uniformly distributed f64 in the interval [0.0, 1.0).

fn f32(&mut self) -> f32

Returns a uniformly distributed f32 in the interval [0.0, 1.0).

fn f64_nonzero(&mut self) -> f64

Returns a uniformly distributed f64 in the interval (0.0, 1.0].

fn f32_nonzero(&mut self) -> f32

Returns a uniformly distributed f32 in the interval (0.0, 1.0].

fn f64_wide(&mut self) -> f64

Returns a uniformly distributed f64 in the interval (-1.0, 1.0).

fn f32_wide(&mut self) -> f32

Returns a uniformly distributed f32 in the interval (-1.0, 1.0).

fn f64_normal(&mut self) -> (f64, f64)

Returns two indepedent and normally distributed f64 values with a mean of 0.0 and a stddev of 1.0.

fn f64_normal_distribution(&mut self, mean: f64, stddev: f64) -> (f64, f64)

Returns two indepedent and normally distributed f64 values with user-defined mean and stddev.

fn f64_exponential(&mut self) -> f64

Returns an exponentially distributed f64 with a lambda of 1.0.

fn f64_exponential_lambda(&mut self, lambda: f64) -> f64

Returns an exponentially distributed f64 with user-defined lambda.

fn choose<C>(&mut self, collection: C) -> Option<C::Item>

where C: IntoIterator, C::IntoIter: ExactSizeIterator,

Returns a randomly chosen item from the iterator of collection.

fn ascii_alphabetic(&mut self) -> char

Returns a randomly selected ASCII character from the pool of:

fn ascii_uppercase(&mut self) -> char

Returns a randomly selected ASCII character from the pool of:

fn ascii_lowercase(&mut self) -> char

Returns a randomly selected ASCII character from the pool of:

fn ascii_alphanumeric(&mut self) -> char

Returns a randomly selected ASCII character from the pool of:

fn ascii_digit(&mut self) -> char

Returns a randomly selected ASCII character from the pool of:

fn shuffle<T>(&mut self, slice: &mut [T])

Performs a Fisher-Yates shuffle on the contents of slice.

fn shuffle_cloned<T: Clone>(&mut self, slice: &[T]) -> Vec<T>

Clones slice into a new Vec, calls Generator::shuffle on it, and returns the result.

impl PartialEq for Xoshiro256pp

fn eq(&self, other: &Xoshiro256pp) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl SeedableGenerator for Xoshiro256pp

fn new_with_seed(seed: u64) -> Self

Creates a generator from the output of an internal PRNG, which is itself seeded from seed.

impl Eq for Xoshiro256pp

impl StructuralPartialEq for Xoshiro256pp