Struct Subsets

pub struct Subsets<T: Clone> { /* private fields */ }

Subsets of a base collection.

The pattern for the yielded values is:

1. vec![]
2. vec![a]
3. vec![b]
4. vec![a,b]
5. vec![c]
6. vec![a,c]
7. vec![b,c]
8. vec![a,b,c]
9. …

where the a is the first element of the base collection, b is the second, and so on.

Example:

use boulder::{Generator, Subsets};

let mut g = Subsets::new(1..4);
assert_eq!(g.generate(), vec![]);
assert_eq!(g.generate(), vec![1]);
assert_eq!(g.generate(), vec![2]);
assert_eq!(g.generate(), vec![1,2]);

Implementations

impl<T: Clone> Subsets<T>

pub fn new<X: IntoIterator<Item = T>>(base: X) -> Self

Create a new generator.

base will be collected into a Vec for re-sampling.

Trait Implementations

impl<T: Clone + Clone> Clone for Subsets<T>

fn clone(&self) -> Subsets<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Clone + 'static> Generator for Subsets<T>

type Output = Vec<T>

The output type.

fn generate(&mut self) -> Self::Output

Make a new object.

impl<C, T> GeneratorWithPersianRug<C> for Subsets<T>

where T: Clone + 'static, C: Context,

type Output = Vec<T>

Available on crate feature persian-rug only.

The output type.

fn generate<'b, B>(&mut self, context: B) -> (Self::Output, B)

where B: 'b + Mutator<Context = C>,

Available on crate feature persian-rug only.

Make a new object.