Trait accurate::sum::traits::SumAccumulator

pub trait SumAccumulator<F>: Add<F, Output = Self> + AddAssign<F> + From<F> + Clone {
    fn sum(self) -> F;

    fn zero() -> Self
    where
        F: Zero,
    { ... }
    fn absorb<I>(self, it: I) -> Self
    where
        I: IntoIterator<Item = F>,
    { ... }
}

Accumulates terms of a sum

Required Methods

fn sum(self) -> F

The sum of all terms accumulated so far

Provided Methods

fn zero() -> Self where
    F: Zero, 

Initial value for an accumulator

fn absorb<I>(self, it: I) -> Self where
    I: IntoIterator<Item = F>, 

Absorb the items of an iterator into the accumulator

Examples

use accurate::traits::*;
use accurate::sum::Sum2;

let s = Sum2::zero().absorb(vec![1.0, 2.0, 3.0]);
assert_eq!(6.0f64, s.sum())

Implementors

• impl<F> SumAccumulator<F> for NaiveSum<F> where
    F: Float, 
• impl<F> SumAccumulator<F> for Sum2<F> where
    F: Float + TwoSum + AddAssign, 
• impl<F, C> SumAccumulator<F> for SumK<F, C> where
    F: Float + TwoSum,
    C: SumAccumulator<F>, 
• impl<F> SumAccumulator<F> for OnlineExactSum<F> where
    F: Float + TwoSum + IFastSum + FloatFormat + RawExponent,