xref: /titanic_51/usr/src/cmd/dtrace/test/tst/common/pointers/tst.VoidCast.d (revision 9512fe850e98fdd448c638ca63fdd92a8a510255)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * ASSERTION:
31  * Can dereference a void * pointer only by casting it to another type.
32  *
33  * SECTION: Pointers and Arrays/Generic Pointers
34  */
35 
36 #pragma D option quiet
37 
38 void *p;
39 
40 int array[3];
41 
42 BEGIN
43 {
44 	array[0] = 234;
45 	array[1] = 334;
46 	array[2] = 434;
47 
48 	p = &array[0];
49 	newp = (int *) p;
50 
51 	printf("array[0]: %d, newp: %d\n", array[0], *newp);
52 	exit(0);
53 }
54 
55 END
56 /234 != *newp/
57 {
58 	exit(1);
59 }
60