tree.h
5.25 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/**
* \file
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2012 Georg Hopp
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TR_TREE_H__
#define __TR_TREE_H__
#include "trbase.h"
#define TR_TREE_RIGHT(node) (NULL!=(node)?(node)->right:NULL)
#define TR_TREE_LEFT(node) (NULL!=(node)?(node)->left:NULL)
#define TR_TREE_PARENT(node) (NULL!=(node)?(node)->parent:NULL)
#define TR_TREE_CHILD(node) \
(NULL==TR_TREE_RIGHT((node))?TR_TREE_LEFT((node)):TR_TREE_RIGHT((node)))
#define TR_TREE_RIGHT_LEFT(node) \
(NULL!=TR_TREE_RIGHT((node))?TR_TREE_LEFT(TR_TREE_RIGHT((node))):NULL)
#define TR_TREE_LEFT_RIGHT(node) \
(NULL!=TR_TREE_LEFT((node))?TR_TREE_RIGHT(TR_TREE_LEFT((node))):NULL)
#define TR_TREE_SIBLING(node) \
(NULL!=TR_TREE_PARENT((node))? \
((node)==TR_TREE_PARENT((node))->left? \
TR_TREE_PARENT((node))->right: \
TR_TREE_PARENT((node))->left): \
NULL)
#define TR_TREE_GRANDPARENT(node) \
(NULL!=TR_TREE_PARENT((node))?TR_TREE_PARENT((node))->parent:NULL)
#define TR_TREE_UNCLE(node) \
(NULL!=TR_TREE_GRANDPARENT((node))? \
(TR_TREE_PARENT((node))==TR_TREE_GRANDPARENT((node))->left? \
TR_TREE_GRANDPARENT((node))->right: \
TR_TREE_GRANDPARENT((node))->left): \
NULL)
#define TR_TREE_ROTATE_LEFT(root, node) \
do { \
if (NULL != TR_TREE_RIGHT_LEFT((node))) { \
TR_TREE_RIGHT_LEFT((node))->parent = (node); \
} \
TR_TREE_RIGHT((node))->left = (node); \
if (NULL != TR_TREE_PARENT((node))) { \
if (TR_TREE_PARENT((node))->left==(node)) { \
TR_TREE_PARENT((node))->left = (node)->right; \
} else { \
TR_TREE_PARENT((node))->right = (node)->right; \
} \
} else { \
*(root) = (node)->right; \
} \
(node)->right = TR_TREE_RIGHT_LEFT((node)); \
(node)->parent = (node)->right; \
TR_TREE_RIGHT((node))->parent = (node)->parent; \
} while(0)
#define TR_TREE_ROTATE_RIGHT(root, node) \
do { \
if (NULL != TR_TREE_LEFT_RIGHT((node))) { \
TR_TREE_LEFT_RIGHT((node))->parent = (node); \
} \
TR_TREE_LEFT((node))->right = (node); \
if (NULL != TR_TREE_PARENT((node))) { \
if (TR_TREE_PARENT((node))->left==(node)) { \
TR_TREE_PARENT((node))->left = (node)->left; \
} else { \
TR_TREE_PARENT((node))->right = (node)->left; \
} \
} else { \
*(root) = (node)->left; \
} \
TR_TREE_LEFT((node))->parent = (node)->parent; \
(node)->left = TR_TREE_LEFT_RIGHT((node)); \
(node)->parent = (node)->right; \
} while(0)
#define TR_TREE_REPLACE_NODE(root, node1, node2) \
do { \
if (NULL != TR_TREE_PARENT((node1))) { \
if ((node1) == TR_TREE_PARENT((node1))->left) { \
TR_TREE_PARENT((node1))->left = (node2); \
} else { \
TR_TREE_PARENT((node1))->right = (node2); \
} \
} else { \
*(root) = (node2); \
} \
if (NULL != (node2)) { \
(node2)->parent = (node1)->parent; \
} \
} while(0)
typedef enum {rbBlack=1, rbRed=2} TR_rbColor;
TR_CLASS(TR_Tree) {
void * data;
TR_rbColor color;
TR_Tree parent;
TR_Tree left;
TR_Tree right;
};
typedef int (*TR_TreeComp)(const void *, const void *);
typedef void (*TR_TreeAction)(const void *, const int);
void * TR_treeFind(TR_Tree, const void *, TR_TreeComp);
void * TR_treeInsert(TR_Tree *, const void *, TR_TreeComp);
void * TR_treeDelete(TR_Tree *, const void *, TR_TreeComp);
void TR_treeWalk(TR_Tree, TR_TreeAction);
void TR_treeDestroy(TR_Tree *, TR_TreeAction);
#endif // __TR_TREE_H__
// vim: set ts=4 sw=4: