Struct rand::rngs::mock::StepRng[][src]

pub struct StepRng { /* fields omitted */ }

A simple implementation of RngCore for testing purposes.

This generates an arithmetic sequence (i.e. adds a constant each step) over a u64 number, using wrapping arithmetic. If the increment is 0 the generator yields a constant.

use rand::Rng;
use rand::rngs::mock::StepRng;

let mut my_rng = StepRng::new(2, 1);
let sample: [u64; 3] = my_rng.gen();
assert_eq!(sample, [2, 3, 4]);

Implementations

impl StepRng[src]

pub fn new(initial: u64, increment: u64) -> Self[src]

Create a StepRng, yielding an arithmetic sequence starting with initial and incremented by increment each time.

Trait Implementations

impl Clone for StepRng[src]

impl Debug for StepRng[src]

impl Eq for StepRng[src]

impl PartialEq<StepRng> for StepRng[src]

impl RngCore for StepRng[src]

impl StructuralEq for StepRng[src]

impl StructuralPartialEq for StepRng[src]

Auto Trait Implementations

impl RefUnwindSafe for StepRng

impl Send for StepRng

impl Sync for StepRng

impl Unpin for StepRng

impl UnwindSafe for StepRng

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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