Struct ark_poly_commit::optional_rng::OptionalRng[−][src]

pub struct OptionalRng<R>(pub Option<R>);

Expand description

OptionalRng is a hack that is necessary because Option<&mut R> is not implicitly reborrowed like &mut R is. This causes problems when a variable of type Option<&mut R> is moved (eg, in a loop).

To overcome this, we define the wrapper OptionalRng here that can be borrowed mutably, without fear of being moved.

Trait Implementations

impl<R: RngCore> From<R> for OptionalRng<R>[src]

fn from(other: R) -> Self[src]

Performs the conversion.

impl<R: RngCore> RngCore for OptionalRng<R>[src]

fn next_u32(&mut self) -> u32[src]

Return the next random u32. Read more

fn next_u64(&mut self) -> u64[src]

Return the next random u64. Read more

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

Fill dest with random data. Read more

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

Fill dest entirely with random data. Read more

Auto Trait Implementations

impl<R> RefUnwindSafe for OptionalRng<R> where
    R: RefUnwindSafe,

impl<R> Send for OptionalRng<R> where
    R: Send,

impl<R> Sync for OptionalRng<R> where
    R: Sync,

impl<R> Unpin for OptionalRng<R> where
    R: Unpin,

impl<R> UnwindSafe for OptionalRng<R> where
    R: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

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

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pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

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

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pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

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

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pub fn into(self) -> U[src]

Performs the conversion.

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

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

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, R>(&mut self, range: R) -> T where
    T: SampleUniform,
    R: SampleRange<T>,

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Generate a random value in the given range. Read more

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

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

fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T> where
    D: Distribution<T>,

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

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

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Fill any type implementing Fill with random data Read more

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

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Fill any type implementing Fill with random data Read more

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

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

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

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

impl<T> Same<T> for T

type Output = T

Should always be Self

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.

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

Performs the conversion.

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.

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

Performs the conversion.

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

pub fn vzip(self) -> V