Struct vrp_core::utils::DefaultRandom

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pub struct DefaultRandom { /* private fields */ }

Expand description

A default random implementation.

Implementations

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impl DefaultRandom

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pub fn new_with_seed(seed: u64) -> DefaultRandom

Creates a new instance DefaultRandom with seed.

Trait Implementations

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impl Default for DefaultRandom

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fn default() -> DefaultRandom

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

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impl Random for DefaultRandom

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fn get_rng(&self) -> StdRng

Returns RNG.

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fn uniform_int(&self, min: i32, max: i32) -> i32

Produces integral random value, uniformly distributed on the closed interval [min, max]

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fn uniform_real(&self, min: f64, max: f64) -> f64

Produces real random value, uniformly distributed on the closed interval [min, max)

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fn is_head_not_tails(&self) -> bool

Flips a coin and returns true if it is “heads”, false otherwise.

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fn is_hit(&self, probability: f64) -> bool

Tests probability value in (0., 1.) range.

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fn weighted(&self, weights: &[usize ]) -> usize

Returns an index from collected with probability weight. Uses exponential distribution where the weights are the rate of the distribution (lambda) and selects the smallest sampled value. Read more

Auto Trait Implementations

impl RefUnwindSafe for DefaultRandom

impl Send for DefaultRandom

impl Sync for DefaultRandom

impl Unpin for DefaultRandom

impl UnwindSafe for DefaultRandom

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct vrp_core::utils::DefaultRandom

Implementations

impl DefaultRandom

pub fn new_with_seed(seed: u64) -> DefaultRandom

Trait Implementations

impl Default for DefaultRandom

fn default() -> DefaultRandom

impl Random for DefaultRandom

fn get_rng(&self) -> StdRng

fn uniform_int(&self, min: i32, max: i32) -> i32

fn uniform_real(&self, min: f64, max: f64) -> f64

fn is_head_not_tails(&self) -> bool

fn is_hit(&self, probability: f64) -> bool

fn weighted(&self, weights: &[usize]) -> usize

Auto Trait Implementations

impl RefUnwindSafe for DefaultRandom

impl Send for DefaultRandom

impl Sync for DefaultRandom

impl Unpin for DefaultRandom

impl UnwindSafe for DefaultRandom

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

fn weighted(&self, weights: &[usize ]) -> usize

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,