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AVLTree: Add convenience LeftMost/RightMost with no arguments.

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They return the left and right most nodes of the entire tree, i.e.
starting from the root node.

Change-Id: I651a9db6d12308aef4c2ed71484958428e58c9bc
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2838
Reviewed-by: waddlesplash <[email protected]>
This commit is contained in:
Michael Lotz
2020-05-30 01:47:40 +00:00
committed by waddlesplash
parent 928d780bc9
commit 621f53700f
2 changed files with 37 additions and 1 deletions
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headers/private/kernel/util/AVLTree.h
+20
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@@ -47,7 +47,9 @@ public:
Value* Previous(Value* value) const;
Value* Next(Value* value) const;
Value* LeftMost() const;
Value* LeftMost(Value* value) const;
Value* RightMost() const;
Value* RightMost(Value* value) const;
inline Iterator GetIterator();
@@ -258,6 +260,15 @@ AVLTree<Definition>::Next(Value* value) const
}
template<typename Definition>
inline typename AVLTree<Definition>::Value*
AVLTree<Definition>::LeftMost() const
{
AVLTreeNode* node = fTree.LeftMost();
return node != NULL ? _GetValue(node) : NULL;
}
template<typename Definition>
inline typename AVLTree<Definition>::Value*
AVLTree<Definition>::LeftMost(Value* value) const
@@ -270,6 +281,15 @@ AVLTree<Definition>::LeftMost(Value* value) const
}
template<typename Definition>
inline typename AVLTree<Definition>::Value*
AVLTree<Definition>::RightMost() const
{
AVLTreeNode* node = fTree.RightMost();
return node != NULL ? _GetValue(node) : NULL;
}
template<typename Definition>
inline typename AVLTree<Definition>::Value*
AVLTree<Definition>::RightMost(Value* value) const