--- /dev/null
+/*
+ * ReactOS kernel
+ * Copyright (C) 2003 ReactOS Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/* $Id$
+ *
+ * COPYRIGHT: See COPYING in the top level directory
+ * PROJECT: ReactOS system libraries
+ * PURPOSE: Splay-Tree implementation
+ * FILE: lib/ntdll/rtl/splaytree.c
+ */
+
+#include <ddk/ntddk.h>
+
+/* FUNCTIONS *****************************************************************/
+
+PRTL_SPLAY_LINKS STDCALL
+RtlSubtreePredecessor (IN PRTL_SPLAY_LINKS Links)
+{
+ PRTL_SPLAY_LINKS Child;
+
+ Child = Links->RightChild;
+ if (Child == NULL)
+ return NULL;
+
+ if (Child->LeftChild == NULL)
+ return Child;
+
+ /* Get left-most child */
+ while (Child->LeftChild != NULL)
+ Child = Child->LeftChild;
+
+ return Child;
+}
+
+
+PRTL_SPLAY_LINKS STDCALL
+RtlSubtreeSuccessor (IN PRTL_SPLAY_LINKS Links)
+{
+ PRTL_SPLAY_LINKS Child;
+
+ Child = Links->LeftChild;
+ if (Child == NULL)
+ return NULL;
+
+ if (Child->RightChild == NULL)
+ return Child;
+
+ /* Get right-most child */
+ while (Child->RightChild != NULL)
+ Child = Child->RightChild;
+
+ return Child;
+}
+
+/* EOF */