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-rw-r--r--src/VBox/Runtime/common/table/avl_Enum.cpp.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/table/avl_Enum.cpp.h b/src/VBox/Runtime/common/table/avl_Enum.cpp.h
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+/* $Id: avl_Enum.cpp.h $ */
+/** @file
+ * Enumeration routines for AVL trees.
+ */
+
+/*
+ * Copyright (C) 2006-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+#ifndef _kAVLEnum_h_
+#define _kAVLEnum_h_
+
+
+/**
+ * Gets the root node.
+ *
+ * @returns Pointer to the root node.
+ * @returns NULL if the tree is empty.
+ *
+ * @param ppTree Pointer to pointer to the tree root node.
+ */
+KAVL_DECL(PKAVLNODECORE) KAVL_FN(GetRoot)(PPKAVLNODECORE ppTree)
+{
+ return KAVL_GET_POINTER_NULL(ppTree);
+}
+
+
+/**
+ * Gets the right node.
+ *
+ * @returns Pointer to the right node.
+ * @returns NULL if no right node.
+ *
+ * @param pNode The current node.
+ */
+KAVL_DECL(PKAVLNODECORE) KAVL_FN(GetRight)(PKAVLNODECORE pNode)
+{
+ if (pNode)
+ return KAVL_GET_POINTER_NULL(&pNode->pRight);
+ return NULL;
+}
+
+
+/**
+ * Gets the left node.
+ *
+ * @returns Pointer to the left node.
+ * @returns NULL if no left node.
+ *
+ * @param pNode The current node.
+ */
+KAVL_DECL(PKAVLNODECORE) KAVL_FN(GetLeft)(PKAVLNODECORE pNode)
+{
+ if (pNode)
+ return KAVL_GET_POINTER_NULL(&pNode->pLeft);
+ return NULL;
+}
+
+
+# ifdef KAVL_EQUAL_ALLOWED
+/**
+ * Gets the next node with an equal (start) key.
+ *
+ * @returns Pointer to the next equal node.
+ * @returns NULL if the current node was the last one with this key.
+ *
+ * @param pNode The current node.
+ */
+KAVL_DECL(PKAVLNODECORE) KAVL_FN(GetNextEqual)(PKAVLNODECORE pNode)
+{
+ if (pNode)
+ return KAVL_GET_POINTER_NULL(&pNode->pList);
+ return NULL;
+}
+# endif /* KAVL_EQUAL_ALLOWED */
+
+#endif
+