1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1998 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma	ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <sys/types.h>
32 
33 /*
34  * This file tests for 8 bytes alignment on all allocations.
35  *
36  * cc -O -o align align.c -lmtmalloc
37  */
38 
39 #define	N 100	/* big enough to hold results */
40 
main(int argc,char ** argv)41 main(int argc, char ** argv)
42 {
43 	int i = 0;
44 	char *bar[N];
45 
46 	while (i < 20) {
47 		bar[i] = malloc(1<<i);
48 		if ((uintptr_t)bar[i] & 7) {
49 			fprintf(stderr, "Address %p is not 8 byte aligned\n",
50 				bar[i]);
51 			fprintf(stderr, "Allocation size %d\n", 1<<i);
52 		}
53 		i++;
54 	}
55 
56 	i = 0;
57 	while (i < 20) {
58 		free(bar[i]);
59 		i++;
60 	}
61 }
62