113         self.flatten().next()  in first()
117         self.flatten().next_back()  in last()
130     pub fn flatten(&self) -> Flatten {  in flatten()  method
131         Flatten {  in flatten()
221 pub struct Flatten<'a> {  struct
227 impl<'a> Iterator for Flatten<'a> {  argument
245 impl<'a> DoubleEndedIterator for Flatten<'a> {  implementation
274         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &empty);  in insert_non_overlapping()
278         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6]);  in insert_non_overlapping()
282         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_non_overlapping()
291         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_contained()
295         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_contained()
299         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_contained()
303         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_contained()
307         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_contained()
311         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in insert_contained()
320         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[3, 4, 5, 9, 10, 11]);  in insert_overlapping()
324         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[3, 4, 5, 6, 9, 10, 11]);  in insert_overlapping()
328         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping()
334         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping()
340         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping()
346         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping()
357         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping_multi()
363         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping_multi()
369         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping_multi()
375         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in insert_overlapping_multi()
415         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in push_item()
419         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in push_item()
425         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in push_item()
431         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in push_item()
439         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in push_item()
446         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in push_item()
453         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in push_item()
464         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &empty);  in flatten_rev()
468         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6]);  in flatten_rev()
469         assert_eq!(&r.flatten().rev().collect::<Vec<u64>>(), &[6, 5, 4]);  in flatten_rev()
473         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[4, 5, 6, 9, 10, 11]);  in flatten_rev()
474         assert_eq!(&r.flatten().rev().collect::<Vec<u64>>(), &[  in flatten_rev()
485         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &empty);  in flatten_one()
489         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[0]);  in flatten_one()
490         assert_eq!(&r.flatten().rev().collect::<Vec<u64>>(), &[0]);  in flatten_one()
501         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in remove_largest()
506         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in remove_largest()
511         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in remove_largest()
516         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[  in remove_largest()
521         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[13, 16, 17, 18, 19]);  in remove_largest()
524         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[18, 19]);  in remove_largest()
527         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &[19]);  in remove_largest()
532         assert_eq!(&r.flatten().collect::<Vec<u64>>(), &empty);  in remove_largest()