Trait rayon::iter::ParallelExtend

source · [−]
pub trait ParallelExtend<T> where
    T: Send, {
    fn par_extend<I>(&mut self, par_iter: I)
    where
        I: IntoParallelIterator<Item = T>;
}
Expand description

ParallelExtend extends an existing collection with items from a ParallelIterator.

Examples

Implementing ParallelExtend for your type:

use rayon::prelude::*;
use std::mem;

struct BlackHole {
    mass: usize,
}

impl<T: Send> ParallelExtend<T> for BlackHole {
    fn par_extend<I>(&mut self, par_iter: I)
        where I: IntoParallelIterator<Item = T>
    {
        let par_iter = par_iter.into_par_iter();
        self.mass += par_iter.count() * mem::size_of::<T>();
    }
}

let mut bh = BlackHole { mass: 0 };
bh.par_extend(0i32..1000);
assert_eq!(bh.mass, 4000);
bh.par_extend(0i64..10);
assert_eq!(bh.mass, 4080);

Required Methods

Extends an instance of the collection with the elements drawn from the parallel iterator par_iter.

Examples
use rayon::prelude::*;

let mut vec = vec![];
vec.par_extend(0..5);
vec.par_extend((0..5).into_par_iter().map(|i| i * i));
assert_eq!(vec, [0, 1, 2, 3, 4, 0, 1, 4, 9, 16]);

Implementations on Foreign Types

Extends a binary heap with items from a parallel iterator.

Extends a binary heap with copied items from a parallel iterator.

Extends a B-tree map with items from a parallel iterator.

Extends a B-tree map with copied items from a parallel iterator.

Extends a B-tree set with items from a parallel iterator.

Extends a B-tree set with copied items from a parallel iterator.

Extends a hash map with items from a parallel iterator.

Extends a hash map with copied items from a parallel iterator.

Extends a hash set with items from a parallel iterator.

Extends a hash set with copied items from a parallel iterator.

Extends a linked list with items from a parallel iterator.

Extends a linked list with copied items from a parallel iterator.

Extends a string with characters from a parallel iterator.

Extends a string with copied characters from a parallel iterator.

Extends a string with string slices from a parallel iterator.

Extends a string with strings from a parallel iterator.

Extends a string with string slices from a parallel iterator.

Extends a deque with items from a parallel iterator.

Extends a deque with copied items from a parallel iterator.

Extends a vector with items from a parallel iterator.

Extends a vector with copied items from a parallel iterator.

Collapses all unit items from a parallel iterator into one.

Implementors

Either<L, R> can be extended if both L and R are parallel extendable.