Struct MapExpr

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pub struct MapExpr<E, F, S> { /* private fields */ }

Expand description

Map expression - applies a function to each element

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impl<E: Clone, F: Clone, S: Clone> Clone for MapExpr<E, F, S>

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fn clone(&self) -> MapExpr<E, F, S>

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<E: Debug, F: Debug, S: Debug> Debug for MapExpr<E, F, S>

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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<E, F, S> TensorExpr for MapExpr<E, F, S>
where E: TensorExpr, F: Fn(E::Scalar) -> S, S: Copy,

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type Scalar = S

The scalar type of the expression result

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fn eval(&self, index: usize) -> Self::Scalar

Evaluate the expression at the given linear index Read more

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fn len(&self) -> usize

Get the total number of elements in the expression

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fn is_empty(&self) -> bool

Check if the expression is empty

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fn map<F, S>(self, f: F) -> MapExpr<Self, F, S>
where F: Fn(Self::Scalar) -> S, S: Copy,

Map this expression to a new expression by applying a function

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fn reduce<F>(&self, init: Self::Scalar, f: F) -> Self::Scalar
where F: Fn(Self::Scalar, Self::Scalar) -> Self::Scalar,

Reduce this expression to a single value

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fn sum(&self) -> Self::Scalar
where Self::Scalar: Add<Output = Self::Scalar> + Default,

Sum all elements in the expression

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fn max(&self) -> Option<Self::Scalar>
where Self::Scalar: PartialOrd,

Find the maximum element in the expression

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fn min(&self) -> Option<Self::Scalar>
where Self::Scalar: PartialOrd,

Find the minimum element in the expression

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fn materialize(&self) -> Vec<Self::Scalar>

Materialize the expression into a vector Read more

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fn apply_to_slice(&self, output: &mut [Self::Scalar])

Apply the expression to a mutable slice Read more

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impl<E: Copy, F: Copy, S: Copy> Copy for MapExpr<E, F, S>

Auto Trait Implementations§

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impl<E, F, S> Freeze for MapExpr<E, F, S>
where E: Freeze, F: Freeze,

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impl<E, F, S> RefUnwindSafe for MapExpr<E, F, S>
where E: RefUnwindSafe, F: RefUnwindSafe, S: RefUnwindSafe,

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impl<E, F, S> UnsafeUnpin for MapExpr<E, F, S>
where E: UnsafeUnpin, F: UnsafeUnpin,

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impl<E, F, S> UnwindSafe for MapExpr<E, F, S>
where E: UnwindSafe, F: UnwindSafe, S: 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, U> Into 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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