Tracking issue for std::iter::successors #58045
Description
Implemented in #55869, previously tracked in #55977:
pub fn successors<T, F>(first: Option<T>, succ: F) -> Successors<T, F>
where F: FnMut(&T) -> Option<T> {…}
#[derive(Clone)] pub struct Successors<T, F> {…}
impl<T, F> Iterator for Successors<T, F> where F: FnMut(&T) -> Option<T> {
type Item = T;
}
impl<T, F> FusedIterator for Successors<T, F> where F: FnMut(&T) -> Option<T> {}
impl<T: fmt::Debug, F> fmt::Debug for Successors<T, F> {…}