Trait IterUtilsExt 

pub trait IterUtilsExt: Iterator {
    // Provided methods
    fn ex_find_map<F, R>(&mut self, f: F) -> Option<R>
       where F: FnMut(Self::Item) -> Option<R> { ... }
    fn ex_rfind_map<F, R>(&mut self, f: F) -> Option<R>
       where F: FnMut(Self::Item) -> Option<R>,
             Self: DoubleEndedIterator { ... }
}

Provided Methods

fn ex_find_map<F, R>(&mut self, f: F) -> Option<R>

where F: FnMut(Self::Item) -> Option<R>,

Return the first element that maps to Some(_), or None if the iterator was exhausted.

fn ex_rfind_map<F, R>(&mut self, f: F) -> Option<R>

where F: FnMut(Self::Item) -> Option<R>, Self: DoubleEndedIterator,

Return the last element from the back that maps to Some(_), or None if the iterator was exhausted.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<I> IterUtilsExt for I

where I: Iterator,