xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/union/tst.UnionInside.d (revision c51cb4bc539e1650eb5bb4f805cc779bfce99c06)
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  * Verify the nested behavior of unions.
32  *
33  * SECTION: Structs and Unions/Unions
34  *
35  */
36 #pragma D option quiet
37 
38 union InnerMost {
39 	int position;
40 	char content;
41 };
42 
43 union InnerMore {
44 	union InnerMost IMost;
45 	int dummy_More;
46 };
47 
48 union Inner {
49 	union InnerMore IMore;
50 	int dummy_More;
51 };
52 
53 union Outer {
54 	union Inner I;
55 	int dummy_More;
56 };
57 
58 union OuterMore {
59 	union Outer O;
60 	int dummy_More;
61 };
62 
63 union OuterMost {
64 	union OuterMore OMore;
65 	int dummy_More;
66 } OMost;
67 
68 
69 BEGIN
70 {
71 
72 	OMost.OMore.O.I.IMore.IMost.position = 5;
73 	OMost.OMore.O.I.IMore.IMost.content = 'e';
74 
75 	printf("OMost.OMore.O.I.IMore.IMost.content: %c\n",
76 	       OMost.OMore.O.I.IMore.IMost.content);
77 
78 	exit(0);
79 }
80 
81 END
82 /'e' != OMost.OMore.O.I.IMore.IMost.content/
83 {
84 	exit(1);
85 }
86