Struct XorShift64 Copy item path

impl XorShift64

pub const fn new(seed: u64) -> Option<Self> ⓘ

Returns a seeded XorShift64 generator from the given 64-bit seed.

Returns None if seed == 0.

pub const fn new_unchecked(seed: u64) -> Self

Returns a seeded XorShift64 generator from the given 8-bit seed, unchecked.

The seed must not be 0, otherwise every result will also be 0.

pub const fn current_u64(&self) -> u64 ⓘ

Returns the current random u64.

pub fn next_u64(&mut self) -> u64 ⓘ

Returns the next random u64.

pub const fn next_state(&self) -> Self

Returns a copy of the next new random state.

pub const fn own_next_u64(self) -> Own<Self, u64>

Returns both the next random state and the u64 value.

impl XorShift64

§Extra constructors

pub const fn new1_u64(seed: u64) -> Option<Self> ⓘ

Returns a seeded XorShift64 generator from the given 64-bit seed.

This is an alias of new.

pub const fn new2_u32(seeds: [u32; 2]) -> Option<Self> ⓘ

Available on crate feature join only.

Returns a seeded XorShift64 generator from the given 2 × 32-bit seeds.

The seeds will be joined in little endian order.

pub const fn new4_u16(seeds: [u16; 4]) -> Option<Self> ⓘ

Available on crate feature join only.

Returns a seeded XorShift64 generator from the given 4 × 16-bit seeds.

The seeds will be joined in little endian order.

pub const fn new8_u8(seeds: [u8; 8]) -> Option<Self> ⓘ

Returns a seeded XorShift64 generator from the given 4 × 8-bit seeds.

The seeds will be joined in little endian order.

Trait Implementations§

impl Clone for XorShift64

fn clone(&self) -> XorShift64

Returns a copy of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl ConstDefault for XorShift64

const DEFAULT: Self

Returns the compile-time “default value” for a type.

impl Debug for XorShift64

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

Formats the value using the given formatter. Read more

impl Default for XorShift64

fn default() -> Self

Returns the “default value” for a type. Read more

impl PartialEq for XorShift64

fn eq(&self, other: &XorShift64) -> bool

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

1.0.0 · Source§

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 RngCore for XorShift64

Available on crate feature dep_rand_core only.

fn next_u32(&mut self) -> u32 ⓘ

Returns the next random u32, from the first 32-bits of next_u64.

fn next_u64(&mut self) -> u64 ⓘ

Returns the next random u64.

fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data. Read more

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> ⓘ

Fill dest entirely with random data. Read more

impl SeedableRng for XorShift64

Available on crate feature dep_rand_core only.

fn from_seed(seed: Self::Seed) -> Self

When seeded with zero this implementation uses the default seed value as the cold path.

type Seed = [u8; 8]

Seed type, which is restricted to types mutably-dereferenceable as u8 arrays (we recommend [u8; N] for some N). Read more

fn seed_from_u64(state: u64) -> Self

Create a new PRNG using a u64 seed. Read more

fn from_rng<R>(rng: R) -> Result<Self, Error> ⓘ
where R: RngCore,

Create a new PRNG seeded from another Rng. Read more

fn from_entropy() -> Self

Creates a new instance of the RNG seeded via getrandom. Read more

impl Copy for XorShift64

impl Eq for XorShift64

impl StructuralPartialEq for XorShift64

Auto Trait Implementations§

impl UnwindSafe for XorShift64

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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Mutably borrows from an owned value. Read more

impl<T> ByteSized for T

const BYTE_ALIGN: usize = _

The alignment of this type in bytes.

const BYTE_SIZE: usize = _

The size of this type in bytes.

fn byte_align(&self) -> usize ⓘ

Returns the alignment of this type in bytes.

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fn ptr_size_ratio(&self) -> [usize; 2]

Returns the size ratio between Ptr::BYTES and BYTE_SIZE. Read more

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fn chain<F>(self, f: F) -> R
where F: FnOnce(Self) -> R, Self: Sized,

Chain a function which takes the parameter by value.

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where F: FnOnce(&Self) -> R,

Chain a function which takes the parameter by shared reference.

fn chain_mut<F>(&mut self, f: F) -> R
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Chain a function which takes the parameter by exclusive reference.

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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fn type_of(&self) -> TypeId

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fn type_name(&self) -> &'static str ⓘ

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Returns true if Self is of type T. Read more

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where Self: Sized,

Upcasts &self as &dyn Any. Read more

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Upcasts &mut self as &mut dyn Any. Read more

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where Self: Sized,

Upcasts Box<self> as Box<dyn Any>. Read more

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Available on crate feature unsafe_layout only.

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fn downcast_mut<T: 'static>(&mut self) -> Option<&mut T> ⓘ

Available on crate feature unsafe_layout only.

Returns some exclusive reference to the inner value if it is of type T. Read more

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where T: ?Sized,

const NEEDS_DROP: bool = _

Know whether dropping values of this type matters, in compile-time.

fn mem_align_of<T>() -> usize ⓘ

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fn mem_align_of_val(&self) -> usize ⓘ

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fn mem_size_of_val(&self) -> usize ⓘ

Returns the size of the pointed-to value in bytes. Read more

fn mem_copy(&self) -> Self
where Self: Copy,

Bitwise-copies a value. Read more

fn mem_needs_drop(&self) -> bool

Returns true if dropping values of this type matters. Read more

fn mem_drop(self)
where Self: Sized,

Drops self by running its destructor. Read more

fn mem_forget(self)
where Self: Sized,

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fn mem_replace(&mut self, other: Self) -> Self
where Self: Sized,

Replaces self with other, returning the previous value of self. Read more

fn mem_take(&mut self) -> Self
where Self: Default,

Replaces self with its default value, returning the previous value of self. Read more

fn mem_swap(&mut self, other: &mut Self)
where Self: Sized,

Swaps the value of self and other without deinitializing either one. Read more

unsafe fn mem_zeroed<T>() -> T

Available on crate feature unsafe_layout only.

Returns the value of type T represented by the all-zero byte-pattern. Read more

unsafe fn mem_transmute_copy<Src, Dst>(src: &Src) -> Dst

Available on crate feature unsafe_layout only.

Returns the value of type T represented by the all-zero byte-pattern. Read more

fn mem_as_bytes(&self) -> &[u8] ⓘ
where Self: Sync + Unpin,

Available on crate feature unsafe_slice only.

View a Sync + Unpin self as &[u8]. Read more

fn mem_as_bytes_mut(&mut self) -> &mut [u8] ⓘ
where Self: Sync + Unpin,

Available on crate feature unsafe_slice only.

View a Sync + Unpin self as &mut [u8]. Read more

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fn from_sample_(s: S) -> S

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where F: FnOnce(&Self),

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fn hook_mut<F>(self, f: F) -> Self
where F: FnOnce(&mut Self),

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