Trait std::iter::AdditiveIteratorUnstable

pub trait AdditiveIterator<A> {
    fn sum(self) -> A;
}

A trait for iterators over elements which can be added together

Required Methods

fn sum(self) -> A

Iterates over the entire iterator, summing up all the elements

Example

fn main() { use std::iter::AdditiveIterator; let a = [1i, 2, 3, 4, 5]; let mut it = a.iter().map(|&x| x); assert!(it.sum() == 15); }

use std::iter::AdditiveIterator;

let a = [1i, 2, 3, 4, 5];
let mut it = a.iter().map(|&x| x);
assert!(it.sum() == 15);

Implementors

• impl<T: Iterator> AdditiveIterator<i8> for T
• impl<T: Iterator> AdditiveIterator<i16> for T
• impl<T: Iterator> AdditiveIterator<i32> for T
• impl<T: Iterator> AdditiveIterator<i64> for T
• impl<T: Iterator> AdditiveIterator<isize> for T
• impl<T: Iterator> AdditiveIterator<u8> for T
• impl<T: Iterator> AdditiveIterator<u16> for T
• impl<T: Iterator> AdditiveIterator<u32> for T
• impl<T: Iterator> AdditiveIterator<u64> for T
• impl<T: Iterator> AdditiveIterator<usize> for T
• impl<T: Iterator> AdditiveIterator<f32> for T
• impl<T: Iterator> AdditiveIterator<f64> for T