Trait SortedUniqueKernel

pub trait SortedUniqueKernel: Array {
    // Required methods
    fn unique_fold<'a>(
        fst: &'a Self,
        others: impl Iterator<Item = &'a Self>,
    ) -> Self;
    fn unique(&self) -> Self;
    fn n_unique(&self) -> usize;
    fn n_unique_non_null(&self) -> usize;
}

Kernel to calculate the number of unique elements where the elements are already sorted.

Required Methods

fn unique_fold<'a>( fst: &'a Self, others: impl Iterator<Item = &'a Self>, ) -> Self

Calculate the set of unique elements in fst and others and fold the result into one array.

fn unique(&self) -> Self

Calculate the set of unique elements in Self where we have no further information about self.

fn n_unique(&self) -> usize

Calculate the number of unique elements in Self

A null is also considered a unique value

fn n_unique_non_null(&self) -> usize

Calculate the number of unique non-null elements in Self

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors