xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/offsetof/tst.OffsetofUnion.d (revision dd72704bd9e794056c558153663c739e2012d721)
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 /*
28  * ASSERTION:
29  * Test invocation of offsetof() with a union type alias.
30  *
31  * SECTION: Structs and Unions/Member Sizes and Offsets
32  *
33  * NOTES:
34  *
35  */
36 
37 #pragma D option quiet
38 
39 union record {
40 	int x;
41 	int y;
42 	char c;
43 };
44 
45 BEGIN
46 {
47 	printf("offsetof(record, x) = %d\n", offsetof(union D`record, x));
48 	printf("offsetof(record, y) = %d\n", offsetof(union D`record, y));
49 	printf("offsetof(record, c) = %d\n", offsetof(union D`record, c));
50 	exit(0);
51 }
52 
53 END
54 /(0 != offsetof(union D`record, y)) && (0 != offsetof(union D`record, x)) &&
55     (0 != offsetof(union D`record, c))/
56 {
57 	exit(1);
58 }
59