Struct rand::rngs::mock::StepRng [−][src]
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
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pub fn new(initial: u64, increment: u64) -> Self
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Create a StepRng
, yielding an arithmetic sequence starting with
initial
and incremented by increment
each time.
Trait Implementations
impl Clone for StepRng
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impl Debug for StepRng
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impl Eq for StepRng
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impl PartialEq<StepRng> for StepRng
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impl RngCore for StepRng
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fn next_u32(&mut self) -> u32
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fn next_u64(&mut self) -> u64
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fn fill_bytes(&mut self, dest: &mut [u8])
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fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>
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impl StructuralEq for StepRng
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impl StructuralPartialEq for StepRng
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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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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
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V: MultiLane<T>,