ark_r1cs_std::fields::emulated_fp

Enum MulResultVar

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pub enum MulResultVar<TargetF: PrimeField, BaseF: PrimeField> {
    Constant(TargetF),
    Var(AllocatedMulResultVar<TargetF, BaseF>),
}
Expand description

An intermediate representation especially for the result of a multiplication, containing more limbs. It is intended for advanced usage to improve the efficiency.

That is, instead of calling mul, one can call mul_without_reduce to obtain this intermediate representation, which can still be added. Then, one can call reduce to reduce it back to EmulatedFpVar. This may help cut the number of reduce operations.

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Constant(TargetF)

as a constant

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Var(AllocatedMulResultVar<TargetF, BaseF>)

as an allocated gadget

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impl<TargetF: PrimeField, BaseF: PrimeField> MulResultVar<TargetF, BaseF>

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pub fn zero() -> Self

Create a zero MulResultVar (used for additions)

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pub fn constant(v: TargetF) -> Self

Create an MulResultVar from a constant

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pub fn reduce(&self) -> R1CSResult<EmulatedFpVar<TargetF, BaseF>>

Reduce the MulResultVar back to EmulatedFpVar

Trait Implementations§

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impl<'a, TargetF: PrimeField, BaseF: PrimeField> Add<&'a MulResultVar<TargetF, BaseF>> for MulResultVar<TargetF, BaseF>

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type Output = MulResultVar<TargetF, BaseF>

The resulting type after applying the + operator.
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fn add(self, other: &'a MulResultVar<TargetF, BaseF>) -> Self::Output

Performs the + operation. Read more
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impl<'a, TargetF: PrimeField, BaseF: PrimeField> Add<MulResultVar<TargetF, BaseF>> for &'a MulResultVar<TargetF, BaseF>

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type Output = MulResultVar<TargetF, BaseF>

The resulting type after applying the + operator.
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fn add(self, other: MulResultVar<TargetF, BaseF>) -> Self::Output

Performs the + operation. Read more
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impl<'a, TargetF: PrimeField, BaseF: PrimeField> Add<TargetF> for &'a MulResultVar<TargetF, BaseF>

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type Output = MulResultVar<TargetF, BaseF>

The resulting type after applying the + operator.
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fn add(self, other: TargetF) -> Self::Output

Performs the + operation. Read more
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impl<TargetF: PrimeField, BaseF: PrimeField> Add<TargetF> for MulResultVar<TargetF, BaseF>

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type Output = MulResultVar<TargetF, BaseF>

The resulting type after applying the + operator.
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fn add(self, other: TargetF) -> Self::Output

Performs the + operation. Read more
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impl<'a, TargetF: PrimeField, BaseF: PrimeField> Add for &'a MulResultVar<TargetF, BaseF>

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type Output = MulResultVar<TargetF, BaseF>

The resulting type after applying the + operator.
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fn add(self, other: &'a MulResultVar<TargetF, BaseF>) -> Self::Output

Performs the + operation. Read more
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impl<TargetF: PrimeField, BaseF: PrimeField> Add for MulResultVar<TargetF, BaseF>

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type Output = MulResultVar<TargetF, BaseF>

The resulting type after applying the + operator.
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fn add(self, other: MulResultVar<TargetF, BaseF>) -> Self::Output

Performs the + operation. Read more
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impl<'a, TargetF: PrimeField, BaseF: PrimeField> AddAssign<&'a MulResultVar<TargetF, BaseF>> for MulResultVar<TargetF, BaseF>

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fn add_assign(&mut self, other: &'a MulResultVar<TargetF, BaseF>)

Performs the += operation. Read more
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impl<TargetF: PrimeField, BaseF: PrimeField> AddAssign<TargetF> for MulResultVar<TargetF, BaseF>

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fn add_assign(&mut self, other: TargetF)

Performs the += operation. Read more
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impl<TargetF: PrimeField, BaseF: PrimeField> AddAssign for MulResultVar<TargetF, BaseF>

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fn add_assign(&mut self, other: MulResultVar<TargetF, BaseF>)

Performs the += operation. Read more
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impl<TargetF: Debug + PrimeField, BaseF: Debug + PrimeField> Debug for MulResultVar<TargetF, BaseF>

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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<TargetF: PrimeField, BaseF: PrimeField> From<&EmulatedFpVar<TargetF, BaseF>> for MulResultVar<TargetF, BaseF>

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fn from(src: &EmulatedFpVar<TargetF, BaseF>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<TargetF, BaseF> Freeze for MulResultVar<TargetF, BaseF>
where TargetF: Freeze, BaseF: Freeze,

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impl<TargetF, BaseF> !RefUnwindSafe for MulResultVar<TargetF, BaseF>

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impl<TargetF, BaseF> !Send for MulResultVar<TargetF, BaseF>

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impl<TargetF, BaseF> !Sync for MulResultVar<TargetF, BaseF>

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impl<TargetF, BaseF> Unpin for MulResultVar<TargetF, BaseF>
where TargetF: Unpin, BaseF: Unpin,

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impl<TargetF, BaseF> !UnwindSafe for MulResultVar<TargetF, BaseF>

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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,

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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,

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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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<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more