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SampleWorkspace

antecedent_data::sample_request

Struct SampleWorkspace 

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pub struct SampleWorkspace {
    pub row_indexes: Vec<u32>,
    pub values: AlignedBuffer<f64>,
    pub validity_words: Vec<u64>,
    pub scratch: AlignedBuffer<f64>,
    /* private fields */
}
Expand description

Caller-owned scratch for SamplePlan::prepare.

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§row_indexes: Vec<u32>

Selected raw row indexes (u32).

§values: AlignedBuffer<f64>

Column-major values.

§validity_words: Vec<u64>

Packed validity words for selected rows (optional scratch).

§scratch: AlignedBuffer<f64>

Extra scratch.

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impl SampleWorkspace

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pub fn prepare(&mut self, n: usize, ncols: usize)

Ensure capacity for n selected rows and ncols columns.

Trait Implementations§

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impl Clone for SampleWorkspace

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fn clone(&self) -> SampleWorkspace

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 Debug for SampleWorkspace

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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 SampleWorkspace

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fn default() -> SampleWorkspace

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

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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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> ForeignBufferOwner for T
where T: Send + Sync + Debug + 'static,

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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> ToOwned for T
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type Owned = T

The resulting type after obtaining ownership.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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

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