Trait Retain 

pub trait Retain {
    type Input;

    // Required method
    fn retain(&mut self, input: Self::Input);
}

See Retain::retain for more information.

Required Associated Types

type Input

Input

Required Methods

fn retain(&mut self, input: Self::Input)

Retains only the elements specified by the F predicate.

Implementations on Foreign Types

impl<T> Retain for Option<T>

let mut opt = Some(1);
cl_aux::Retain::retain(&mut opt, |n| n % 2 == 0);
assert_eq!(opt, None);

type Input = fn(&T) -> bool

fn retain(&mut self, input: Self::Input)

impl<T> Retain for &mut T

where T: Retain,

type Input = <T as Retain>::Input

fn retain(&mut self, input: Self::Input)

Implementors