usr/src/cmd/dtrace/test/tst/common/union/tst.UnionAssoc.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  * When a union is used as a key for an associative array, the key is formed
  32  * by using the values of the members of the union variable and not the
  33  * address of the union variable.
  34  *
  35  * SECTION: Structs and Unions/Unions
  36  *
  37  */
  38
  39 #pragma D option quiet
  40
  41 union record {
  42         int position;
  43         char content;
  44 };
  45
  46 union record r1;
  47 union record r2;
  48
  49 BEGIN
  50 {
  51         r1.position = 1;
  52         r1.content = 'a';
  53
  54         r2.position = 1;
  55         r2.content = 'a';
  56
  57         assoc_array[r1] = 1000;
  58         assoc_array[r2] = 2000;
  59
  60         printf("assoc_array[r1]: %d\n",  assoc_array[r1]);
  61         printf("assoc_array[r2]: %d\n",  assoc_array[r2]);
  62
  63         exit(0);
  64 }
  65
  66 END
  67 /assoc_array[r1] != assoc_array[r2]/
  68 {
  69         printf("Error");
  70         exit(1);
  71 }