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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/common/table/avl_Get.cpp.h | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/common/table/avl_Get.cpp.h')
-rw-r--r-- | src/VBox/Runtime/common/table/avl_Get.cpp.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/table/avl_Get.cpp.h b/src/VBox/Runtime/common/table/avl_Get.cpp.h new file mode 100644 index 00000000..d3f938ad --- /dev/null +++ b/src/VBox/Runtime/common/table/avl_Get.cpp.h @@ -0,0 +1,77 @@ +/* $Id: avl_Get.cpp.h $ */ +/** @file + * kAVLGet - get routine for AVL trees. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * 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, in version 3 of the + * License. + * + * 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, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox 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. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef _kAVLGet_h_ +#define _kAVLGet_h_ + + +/** + * Gets a node from the tree (does not remove it!) + * @returns Pointer to the node holding the given key. + * @param ppTree Pointer to the AVL-tree root node pointer. + * @param Key Key value of the node which is to be found. + * @author knut st. osmundsen + */ +KAVL_DECL(PKAVLNODECORE) KAVL_FN(Get)(PPKAVLNODECORE ppTree, KAVLKEY Key) +{ + PKAVLNODECORE pNode = KAVL_GET_POINTER_NULL(ppTree); + + if (pNode) + { + while (KAVL_NE(pNode->Key, Key)) + { + if (KAVL_G(pNode->Key, Key)) + { + if (pNode->pLeft != KAVL_NULL) + pNode = KAVL_GET_POINTER(&pNode->pLeft); + else + return NULL; + } + else + { + if (pNode->pRight != KAVL_NULL) + pNode = KAVL_GET_POINTER(&pNode->pRight); + else + return NULL; + } + } + } + + return pNode; +} + + +#endif |