Struct std::iter::InspectStable [-] [+] [src]

#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
pub struct Inspect<I, F> {
    // some fields omitted
}

An iterator that calls a function with a reference to each element before yielding it.

Trait Implementations

`impl<I, F> ExactSizeIterator for Inspect<I, F> where I: ExactSizeIterator, F: FnMut(&<I as Iterator>::Item), <F as FnMut(&<I as Iterator>::Item)>::Output == ()`

`fn len(&self) -> usize`

`impl<I, F> Iterator for Inspect<I, F> where I: Iterator, F: FnMut(&<I as Iterator>::Item), <F as FnMut(&<I as Iterator>::Item)>::Output == ()`

`type Item = <I as Iterator>::Item`

`fn next(&mut self) -> Option<<I as Iterator>::Item>`

`fn size_hint(&self) -> (usize, Option<usize>)`

`fn size_hint(&self) -> (usize, Option<usize>)`

`impl<I, F> DoubleEndedIterator for Inspect<I, F> where I: DoubleEndedIterator, F: FnMut(&<I as Iterator>::Item), <F as FnMut(&<I as Iterator>::Item)>::Output == ()`

`fn next_back(&mut self) -> Option<<I as Iterator>::Item>`

`impl<I, F> RandomAccessIterator for Inspect<I, F> where I: RandomAccessIterator, F: FnMut(&<I as Iterator>::Item), <F as FnMut(&<I as Iterator>::Item)>::Output == ()`

`fn indexable(&self) -> usize`

`fn idx(&mut self, index: usize) -> Option<<I as Iterator>::Item>`

Derived Implementations

`impl<I, F> Clone for Inspect<I, F> where I: Clone, F: Clone`

`fn clone(&self) -> Inspect<I, F>`

`fn clone_from(&mut self, &Inspect<I, F>)`