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ColumnSums

binius_prover::bit_matrix

Struct ColumnSums 

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pub struct ColumnSums<F, const N_TABLES: usize> { /* private fields */ }
Expand description

One field element per column of the matrix, summed across row groups.

Reading the groups end to end walks the columns in order.

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impl<F: BinaryField, const N_TABLES: usize> ColumnSums<F, N_TABLES>

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pub const fn zero() -> Self

The sums before any group has been folded in.

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pub const fn as_slice(&self) -> &[F]

The sums, in column order.

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pub fn add_scaled_to(&self, weight: F, out: &mut [F])

Adds every column’s sum into out, scaled by one weight.

A caller folding a matrix in chunks scales each chunk by its own weight on the way out.

§Preconditions
  • out must hold one element per column.

Trait Implementations§

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impl<F: Clone, const N_TABLES: usize> Clone for ColumnSums<F, N_TABLES>

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fn clone(&self) -> ColumnSums<F, N_TABLES>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<F: Debug, const N_TABLES: usize> Debug for ColumnSums<F, N_TABLES>

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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<F: BinaryField, const N_TABLES: usize> Default for ColumnSums<F, N_TABLES>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<F: Eq, const N_TABLES: usize> Eq for ColumnSums<F, N_TABLES>

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impl<F: PartialEq, const N_TABLES: usize> PartialEq for ColumnSums<F, N_TABLES>

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fn eq(&self, other: &ColumnSums<F, N_TABLES>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<F: PartialEq, const N_TABLES: usize> StructuralPartialEq for ColumnSums<F, N_TABLES>

Auto Trait Implementations§

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impl<F, const N_TABLES: usize> Freeze for ColumnSums<F, N_TABLES>
where F: Freeze,

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impl<F, const N_TABLES: usize> RefUnwindSafe for ColumnSums<F, N_TABLES>
where F: RefUnwindSafe,

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impl<F, const N_TABLES: usize> Send for ColumnSums<F, N_TABLES>
where F: Send,

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impl<F, const N_TABLES: usize> Sync for ColumnSums<F, N_TABLES>
where F: Sync,

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impl<F, const N_TABLES: usize> Unpin for ColumnSums<F, N_TABLES>
where F: Unpin,

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impl<F, const N_TABLES: usize> UnsafeUnpin for ColumnSums<F, N_TABLES>
where F: UnsafeUnpin,

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impl<F, const N_TABLES: usize> UnwindSafe for ColumnSums<F, N_TABLES>
where F: UnwindSafe,

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,

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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<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