A PCG random number generator (XSH RR 64/32 (LCG) variant).
Permuted Congruential Generator with 64-bit state, internal Linear Congruential Generator, and 32-bit output via "xorshift high (bits), random rotation" output function.
This is a 64-bit LCG with explicitly chosen stream with the PCG-XSH-RR
output function. This combination is the standard
Despite the name, this implementation uses 16 bytes (128 bit) space
comprising 64 bits of state and 64 bits stream selector. These are both set
SeedableRng, using a 128-bit seed.
Construct an instance compatible with PCG seed and stream.
Note that PCG specifies default values for both parameters:
state = 0xcafef00dd15ea5e5
stream = 0xa02bdbf7bb3c0a7
impl Clone for Lcg64Xsh32[src]
impl Debug for Lcg64Xsh32[src]
impl Eq for Lcg64Xsh32[src]
impl PartialEq<Lcg64Xsh32> for Lcg64Xsh32[src]
impl RngCore for Lcg64Xsh32[src]
pub fn fill_bytes(&mut self, dest: &mut [u8])[src]
pub fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>[src]
impl SeedableRng for Lcg64Xsh32[src]
We use a single 127-bit seed to initialise the state and select a stream.
seed bit (lowest bit of
seed) is ignored.
type Seed = [u8; 16]
Seed type, which is restricted to types mutably-dereferencable as
arrays (we recommend
[u8; N] for some
N). Read more
pub fn seed_from_u64(state: u64) -> Self[src]
impl StructuralEq for Lcg64Xsh32[src]
impl StructuralPartialEq for Lcg64Xsh32[src]
type Error = Infallible
The type returned in the event of a conversion error.