| 2 |
7u83 |
1 |
/*
|
|
|
2 |
* Copyright 2019, The PLANIX Project
|
|
|
3 |
*
|
|
|
4 |
* Redistribution and use in source and binary forms, with or without
|
|
|
5 |
* modification, are permitted provided that the following conditions are
|
|
|
6 |
* met:
|
|
|
7 |
*
|
|
|
8 |
* 1. Redistributions of source code must retain the above copyright notice,
|
|
|
9 |
* this list of conditions and the following disclaimer.
|
|
|
10 |
*
|
|
|
11 |
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
12 |
* notice, this list of conditions and the following disclaimer in the
|
|
|
13 |
* documentation and/or other materials provided with the distribution.
|
|
|
14 |
*
|
|
|
15 |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
|
16 |
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
|
17 |
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
|
18 |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
|
19 |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
|
20 |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
|
21 |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
|
22 |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
|
23 |
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
|
24 |
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
|
25 |
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
26 |
*/
|
|
|
27 |
|
|
|
28 |
|
|
|
29 |
#include "mavl.h"
|
|
|
30 |
|
|
|
31 |
/**
|
|
|
32 |
* Create a simple AVL tree
|
|
|
33 |
* @param cmp pointer to compare function
|
|
|
34 |
* @param del pointer to delete function which is called when an element
|
|
|
35 |
* will be deletet
|
|
|
36 |
* @param dta_size size of a data element
|
|
|
37 |
* @return pointer to a #mavl struct. If the return value is NULL something
|
|
|
38 |
* went wrong, and you should consult errno to get details.
|
|
|
39 |
*/
|
|
|
40 |
struct mavl *
|
|
|
41 |
mavl_create(int (*cmp) (const void *, const void *),
|
|
|
42 |
void (*del) (void *), size_t data_size){
|
|
|
43 |
struct mavl *t = malloc(sizeof(struct mavl));
|
|
|
44 |
if (!t)
|
|
|
45 |
return NULL;
|
|
|
46 |
t->root = NULL;
|
|
|
47 |
t->count = 0;
|
|
|
48 |
t->cmp = cmp;
|
|
|
49 |
t->del = del;
|
|
|
50 |
t->data_size = data_size;
|
|
|
51 |
|
|
|
52 |
t->malloc = malloc;
|
|
|
53 |
t->free = free;
|
|
|
54 |
return t;
|
|
|
55 |
}
|