Struct rand::rngs::EntropyRng

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pub struct EntropyRng { /* private fields */ }

👎 Deprecated since 0.7.0:

use rngs::OsRng instead

Expand description

An interface returning random data from external source(s), provided specifically for securely seeding algorithmic generators (PRNGs).

This is deprecated. It is suggested you use rngs::OsRng instead.

Implementations

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impl EntropyRng

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pub fn new() -> Self

Create a new EntropyRng.

This method will do no system calls or other initialization routines, those are done on first use. This is done to make new infallible, and try_fill_bytes the only place to report errors.

Trait Implementations

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impl Debug for EntropyRng

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

Formats the value using the given formatter. Read more

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impl Default for EntropyRng

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fn default() -> Self

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

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impl RngCore for EntropyRng

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fn next_u32(&mut self) -> u32

Return the next random u32. Read more

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fn next_u64(&mut self) -> u64

Return the next random u64. Read more

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

Fill dest with random data. Read more

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

Fill dest entirely with random data. Read more

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Auto Trait Implementations

impl RefUnwindSafe for EntropyRng

impl UnwindSafe for EntropyRng

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.

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impl<R> Rng for R where
R: RngCore + ?Sized,

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fn gen<T>(&mut self) -> T where
Standard: Distribution<T>,

Return a random value supporting the Standard distribution. Read more

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fn gen_range<T: SampleUniform, B1, B2>(&mut self, low: B1, high: B2) -> T where
B1: SampleBorrow<T> + Sized,
B2: SampleBorrow<T> + Sized,

Generate a random value in the range [low, high), i.e. inclusive of low and exclusive of high. Read more

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fn sample<T, D: Distribution<T>>(&mut self, distr: D) -> T

Sample a new value, using the given distribution. Read more

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fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T>ⓘNotable traits for DistIter<D, R, T>`impl<D, R, T> Iterator for DistIter<D, R, T> where D: Distribution<T>, R: Rng, type Item = T;` where
 D: Distribution<T>,
 Self: Sized,

Create an iterator that generates values using the given distribution. Read more

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fn fill<T: AsByteSliceMut + ?Sized>(&mut self, dest: &mut T)

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

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fn try_fill<T: AsByteSliceMut + ?Sized>(
&mut self,
dest: &mut T
) -> Result<(), Error>

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

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fn gen_bool(&mut self, p: f64) -> bool

Return a bool with a probability p of being true. Read more

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fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

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

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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.

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

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Struct rand::rngs::EntropyRng

Implementations

impl EntropyRng

pub fn new() -> Self

Trait Implementations

impl Debug for EntropyRng

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

impl Default for EntropyRng

fn default() -> Self

impl RngCore for EntropyRng

fn next_u32(&mut self) -> u32

fn next_u64(&mut self) -> u64

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

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

impl CryptoRng for EntropyRng

Auto Trait Implementations

impl RefUnwindSafe for EntropyRng

impl Send for EntropyRng

impl Sync for EntropyRng

impl Unpin for EntropyRng

impl UnwindSafe for EntropyRng

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<R> Rng for R where R: RngCore + ?Sized,

fn gen<T>(&mut self) -> T where Standard: Distribution<T>,

fn gen_range<T: SampleUniform, B1, B2>(&mut self, low: B1, high: B2) -> T where B1: SampleBorrow<T> + Sized, B2: SampleBorrow<T> + Sized,

fn sample<T, D: Distribution<T>>(&mut self, distr: D) -> T

fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T>ⓘNotable traits for DistIter<D, R, T>impl<D, R, T> Iterator for DistIter<D, R, T> where D: Distribution<T>, R: Rng, type Item = T; where D: Distribution<T>, Self: Sized,

fn fill<T: AsByteSliceMut + ?Sized>(&mut self, dest: &mut T)

fn try_fill<T: AsByteSliceMut + ?Sized>( &mut self, dest: &mut T) -> Result<(), Error>

fn gen_bool(&mut self, p: f64) -> bool

fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

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

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

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<R> Rng for R where
R: RngCore + ?Sized,

fn gen<T>(&mut self) -> T where
Standard: Distribution<T>,

fn gen_range<T: SampleUniform, B1, B2>(&mut self, low: B1, high: B2) -> T where
B1: SampleBorrow<T> + Sized,
B2: SampleBorrow<T> + Sized,

fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T>ⓘNotable traits for DistIter<D, R, T>`impl<D, R, T> Iterator for DistIter<D, R, T> where D: Distribution<T>, R: Rng, type Item = T;` where
D: Distribution<T>,
Self: Sized,

fn try_fill<T: AsByteSliceMut + ?Sized>(
&mut self,
dest: &mut T
) -> Result<(), Error>

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>,