[−][src]Struct rand::rngs::OsRng

pub struct OsRng(_);

A random number generator that retrieves randomness straight from the operating system.

Methods

impl OsRng
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pub fn new() -> Result<OsRng, Error>
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Create a new OsRng.

Trait Implementations

impl Debug for OsRng
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impl Clone for OsRng
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fn clone_from(&mut self, source: &Self)
1.0.0
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Performs copy-assignment from source. Read more

impl RngCore for OsRng
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impl CryptoRng for OsRng
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Auto Trait Implementations

impl Send for OsRng

impl Sync for OsRng

Blanket Implementations

impl<R> Rng for R where
    R: RngCore + ?Sized, 
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fn gen<T>(&mut self) -> T where
    Standard: Distribution<T>, 
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Return a random value supporting the [Standard] distribution. Read more

fn gen_range<T: SampleUniform, B1, B2>(&mut self, low: B1, high: B2) -> T where
    B1: SampleBorrow<T> + Sized,
    B2: SampleBorrow<T> + Sized, 
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Generate a random value in the range [low, high), i.e. inclusive of low and exclusive of high. Read more

fn sample<T, D: Distribution<T>>(&mut self, distr: D) -> T
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Sample a new value, using the given distribution. Read more

ⓘImportant traits for DistIter<'a, D, R, T>
fn sample_iter<'a, T, D: Distribution<T>>(
    &'a mut self,
    distr: &'a D
) -> DistIter<'a, D, Self, T> where
    Self: Sized, 
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Create an iterator that generates values using the given distribution. Read more

fn fill<T: AsByteSliceMut + ?Sized>(&mut self, dest: &mut T)
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Fill dest entirely with random bytes (uniform value distribution), where dest is any type supporting AsByteSliceMut, namely slices and arrays over primitive integer types (i8, i16, u32, etc.). Read more

fn try_fill<T: AsByteSliceMut + ?Sized>(
    &mut self,
    dest: &mut T
) -> Result<(), Error>
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Fill dest entirely with random bytes (uniform value distribution), where dest is any type supporting AsByteSliceMut, namely slices and arrays over primitive integer types (i8, i16, u32, etc.). Read more

fn gen_bool(&mut self, p: f64) -> bool
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Return a bool with a probability p of being true. Read more

fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool
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Return a bool with a probability of numerator/denominator of being true. I.e. gen_ratio(2, 3) has chance of 2 in 3, or about 67%, of returning true. If numerator == denominator, then the returned value is guaranteed to be true. If numerator == 0, then the returned value is guaranteed to be false. Read more

fn choose<'a, T>(&mut self, values: &'a [T]) -> Option<&'a T>
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Deprecated since 0.6.0:

use SliceRandom::choose instead

Return a random element from values. Read more

fn choose_mut<'a, T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>
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Deprecated since 0.6.0:

use SliceRandom::choose_mut instead

Return a mutable pointer to a random element from values. Read more

fn shuffle<T>(&mut self, values: &mut [T])
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Deprecated since 0.6.0:

use SliceRandom::shuffle instead

Shuffle a mutable slice in place. Read more

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

impl<T, U> TryFrom for T where
    T: From<U>, 
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type Error = !

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

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, 
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impl<T> BorrowMut for T where
    T: ?Sized, 
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

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

The type returned in the event of a conversion error.

impl<T> Any for T where
    T: 'static + ?Sized, 
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impl<T> FromCast for T
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impl<T, U> Cast for T where
    U: FromCast<T>, 
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impl<T> FromBits for T
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impl<T, U> IntoBits for T where
    U: FromBits<T>, 
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