xref: /dragonfly/lib/libc/citrus/citrus_hash.c (revision 0db87cb7)
1 /* $FreeBSD: head/lib/libc/iconv/citrus_hash.c 219019 2011-02-25 00:04:39Z gabor $ */
2 /* $NetBSD: citrus_hash.c,v 1.3 2008/02/09 14:56:20 junyoung Exp $ */
3 
4 /*-
5  * Copyright (c)2003 Citrus Project,
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 #include <sys/types.h>
32 
33 #include <assert.h>
34 #include <stdio.h>
35 #include <string.h>
36 
37 #include "citrus_namespace.h"
38 #include "citrus_types.h"
39 #include "citrus_region.h"
40 #include "citrus_hash.h"
41 #include "citrus_db_hash.h"
42 
43 int
44 _citrus_string_hash_func(const char *key, int hashsize)
45 {
46 	struct _region r;
47 
48 	_region_init(&r, __DECONST(void *, key), strlen(key));
49 
50 	return ((int)(_db_hash_std(&r) % (uint32_t)hashsize));
51 }
52