Struct KahanAccumulator 

pub struct KahanAccumulator { /* private fields */ }

Kahan compensated accumulator for f64 values.

Maintains a running sum and a compensation term on the stack. The result is bit-identical for identical input sequences.

Implementations

impl KahanAccumulator

pub fn new() -> Self

Create a zero-initialized accumulator.

pub fn add(&mut self, value: f64)

Add a single value with Kahan compensation.

pub fn add_slice(&mut self, values: &[f64])

Add a slice of values.

pub fn finalize(&self) -> f64

Return the accumulated sum, including the final compensation residual.

pub fn count(&self) -> usize

Return the number of values added.

Trait Implementations

impl Clone for KahanAccumulator

fn clone(&self) -> KahanAccumulator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KahanAccumulator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for KahanAccumulator

fn default() -> Self

Returns the “default value” for a type.