usr/src/cmd/dtrace/test/tst/common/union/tst.UnionInside.d

   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 }