summaryrefslogtreecommitdiff
path: root/pjlib/src/pjlib-test/rand.c
blob: d39089d005cf2b62d32611f405bb661d873c1760 (plain)
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
/* $Id$
 */
/* 
 * PJLIB - PJ Foundation Library
 * (C)2003-2005 Benny Prijono <bennylp@bulukucing.org>
 *
 * Author:
 *  Benny Prijono <bennylp@bulukucing.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include <pj/rand.h>
#include <pj/log.h>
#include "test.h"

#if INCLUDE_RAND_TEST

#define COUNT  1024
static int values[COUNT];

/*
 * rand_test(), simply generates COUNT number of random number and
 * check that there's no duplicate numbers.
 */
int rand_test(void)
{
    int i;

    for (i=0; i<COUNT; ++i) {
	int j;

	values[i] = pj_rand();
	for (j=0; j<i; ++j) {
	    if (values[i] == values[j]) {
		PJ_LOG(3,("test", "error: duplicate value %d at %d-th index",
			 values[i], i));
		return -10;
	    }
	}
    }

    return 0;
}

#endif	/* INCLUDE_RAND_TEST */