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Amit Pundir1b297a92020-04-16 10:02:40 +05301/*
2 * Copyright (c) 2013, Bjorn Andersson <bjorn@kryo.se>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are 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 notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors
16 * may be used to endorse or promote products derived from this software without
17 * specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef __ASSOC_H__
33#define __ASSOC_H__
34
35struct assoc {
36 unsigned long size;
37 unsigned long fill;
38
39 const char **keys;
40 void **values;
41};
42
43void assoc_init(struct assoc *assoc, unsigned long size);
44void *assoc_get(struct assoc *assoc, const char *key);
45void assoc_set(struct assoc *assoc, const char *key, void *value);
46const char *assoc_next(struct assoc *assoc, void **value, unsigned long *iter);
47void assoc_destroy(struct assoc *assoc);
48
49#define assoc_foreach(key, value, assoc, iter) \
50 for ((iter) = 0, (key) = assoc_next((assoc), (value), &(iter)); \
51 (key); \
52 (key) = assoc_next((assoc), (value), &(iter)))
53
54#endif