Struct Prng 

pub struct Prng { /* private fields */ }

The state of the generator, as pg_prng_state holds it.

Implementations

impl Prng

pub fn seed(seed: u64) -> Prng

pg_prng_seed: the state of a seed of 64 bits.

pub fn from_bytes(bytes: [u8; 16]) -> Prng

pg_prng_strong_seed: the state of 16 random bytes.

pub fn fseed(fseed: f64) -> Prng

pg_prng_fseed: the state of a seed in the range -1 to 1, as setseed gives it.

pub fn next_u64(&mut self) -> u64

xoroshiro128ss: the next value, pg_prng_uint64.

pub fn uint64_range(&mut self, rmin: u64, rmax: u64) -> u64

pg_prng_uint64_range: a value from rmin to rmax, with the bitmask rejection method.

pub fn int64_range(&mut self, rmin: i64, rmax: i64) -> i64

pg_prng_int64_range: a value from rmin to rmax.

pub fn double(&mut self) -> f64

pg_prng_double: a value from 0 up to but not including 1, with 52 random bits.

pub fn double_normal(&mut self) -> f64

pg_prng_double_normal: a value of the standard normal distribution, with the basic Box-Muller transform.

Trait Implementations

impl Clone for Prng

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Prng

impl Debug for Prng

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

Formats the value using the given formatter.

impl Eq for Prng

impl PartialEq for Prng

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Prng