diff options
Diffstat (limited to 'library/alloc/src/collections/btree/map.rs')
-rw-r--r-- | library/alloc/src/collections/btree/map.rs | 66 |
1 files changed, 51 insertions, 15 deletions
diff --git a/library/alloc/src/collections/btree/map.rs b/library/alloc/src/collections/btree/map.rs index afdc99817..1f8a1ecba 100644 --- a/library/alloc/src/collections/btree/map.rs +++ b/library/alloc/src/collections/btree/map.rs @@ -1543,11 +1543,17 @@ impl<'a, K: 'a, V: 'a> Iterator for Iter<'a, K, V> { self.next_back() } - fn min(mut self) -> Option<(&'a K, &'a V)> { + fn min(mut self) -> Option<(&'a K, &'a V)> + where + (&'a K, &'a V): Ord, + { self.next() } - fn max(mut self) -> Option<(&'a K, &'a V)> { + fn max(mut self) -> Option<(&'a K, &'a V)> + where + (&'a K, &'a V): Ord, + { self.next_back() } } @@ -1612,11 +1618,17 @@ impl<'a, K, V> Iterator for IterMut<'a, K, V> { self.next_back() } - fn min(mut self) -> Option<(&'a K, &'a mut V)> { + fn min(mut self) -> Option<(&'a K, &'a mut V)> + where + (&'a K, &'a mut V): Ord, + { self.next() } - fn max(mut self) -> Option<(&'a K, &'a mut V)> { + fn max(mut self) -> Option<(&'a K, &'a mut V)> + where + (&'a K, &'a mut V): Ord, + { self.next_back() } } @@ -1779,11 +1791,17 @@ impl<'a, K, V> Iterator for Keys<'a, K, V> { self.next_back() } - fn min(mut self) -> Option<&'a K> { + fn min(mut self) -> Option<&'a K> + where + &'a K: Ord, + { self.next() } - fn max(mut self) -> Option<&'a K> { + fn max(mut self) -> Option<&'a K> + where + &'a K: Ord, + { self.next_back() } } @@ -2008,11 +2026,17 @@ impl<'a, K, V> Iterator for Range<'a, K, V> { self.next_back() } - fn min(mut self) -> Option<(&'a K, &'a V)> { + fn min(mut self) -> Option<(&'a K, &'a V)> + where + (&'a K, &'a V): Ord, + { self.next() } - fn max(mut self) -> Option<(&'a K, &'a V)> { + fn max(mut self) -> Option<(&'a K, &'a V)> + where + (&'a K, &'a V): Ord, + { self.next_back() } } @@ -2081,11 +2105,17 @@ impl<K, V, A: Allocator + Clone> Iterator for IntoKeys<K, V, A> { self.next_back() } - fn min(mut self) -> Option<K> { + fn min(mut self) -> Option<K> + where + K: Ord, + { self.next() } - fn max(mut self) -> Option<K> { + fn max(mut self) -> Option<K> + where + K: Ord, + { self.next_back() } } @@ -2204,11 +2234,17 @@ impl<'a, K, V> Iterator for RangeMut<'a, K, V> { self.next_back() } - fn min(mut self) -> Option<(&'a K, &'a mut V)> { + fn min(mut self) -> Option<(&'a K, &'a mut V)> + where + (&'a K, &'a mut V): Ord, + { self.next() } - fn max(mut self) -> Option<(&'a K, &'a mut V)> { + fn max(mut self) -> Option<(&'a K, &'a mut V)> + where + (&'a K, &'a mut V): Ord, + { self.next_back() } } @@ -2985,7 +3021,7 @@ impl<'a, K, V, A> CursorMut<'a, K, V, A> { }) } - /// Returns a mutable reference to the of the element that the cursor is + /// Returns a mutable reference to the key of the element that the cursor is /// currently pointing to. /// /// This returns `None` if the cursor is currently pointing to the @@ -3043,8 +3079,8 @@ impl<'a, K, V, A> CursorMut<'a, K, V, A> { unsafe { self.root.reborrow() } .as_mut()? .borrow_mut() - .first_leaf_edge() - .next_kv() + .last_leaf_edge() + .next_back_kv() .ok()? .into_kv_valmut() } |