From: Mukund Sivaraman <muks@isc.org>
Date: Mon, 26 Aug 2013 02:57:12 +0000 (+0530)
Subject: [2750] Add getSibling() method
X-Git-Tag: bind10-1.2.0beta1-release~193^2~4^2~67
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7f0bb9294f71b325836f3c4fd8989b382627c19a;p=thirdparty%2Fkea.git

[2750] Add getSibling() method
---

diff --git a/src/lib/datasrc/memory/domaintree.h b/src/lib/datasrc/memory/domaintree.h
index 0d94243cf0..6822e2a49f 100644
--- a/src/lib/datasrc/memory/domaintree.h
+++ b/src/lib/datasrc/memory/domaintree.h
@@ -569,6 +569,22 @@ private:
         }
     }
 
+    /// \brief Access sibling node as bare pointer.
+    ///
+    /// A sibling node is defined as the parent's other child. It exists
+    /// at the same level as this node.
+    ///
+    /// \return the sibling node if one exists, NULL otherwise.
+    DomainTreeNode<T>* getSibling() {
+        DomainTreeNode<T>* parent = getParent();
+
+        if (parent->getLeft() == this) {
+            return (parent->getRight());
+        } else {
+            return (parent->getLeft());
+        }
+    }
+
     /// \brief Access uncle node as bare pointer.
     ///
     /// An uncle node is defined as the parent node's sibling. It exists