xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/pointers/tst.PointerArithmetic3.d (revision 8119dad84d6416f13557b0ba8e2aaf9064cbcfd3)
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  * Pointer arithmetic implicitly adjusts the underlying address by
30  * multiplying or dividing the operands by the size of the type referenced
31  * by the pointer.
32  *
33  * SECTION: Pointers and Arrays/Pointer Arithmetic
34  *
35  * NOTES:
36  *
37  */
38 
39 #pragma D option quiet
40 
41 int *x;
42 int *y;
43 int a[5];
44 
45 BEGIN
46 {
47 	x = &a[0];
48 	y = &a[2];
49 
50 	printf("y-x: %x\n", (int) (y-x));
51 	exit(0);
52 }
53 
54 END
55 /(2 != (int) (y-x)) /
56 {
57 	printf("Error");
58 	exit(1);
59 }
60