/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "@(#)tst.ptrincop.d 1.1 06/08/28 SMI"
/*
* ASSERTION:
* Verify increment/decrement operator using pointers
*
* SECTION: Types, Operators, and Expressions/Increment and Decrement Operators
*
*/
#pragma D option quiet
#if !defined(__APPLE__)
BEGIN
{
ptr_orig = &`kmem_flags;
ptr_pos = &`kmem_flags+1;
ptr_neg = &`kmem_flags-1;
ptr_pos_before = ++ptr_orig;
ptr_orig = &`kmem_flags;
ptr_neg_before = --ptr_orig;
ptr_orig = &`kmem_flags;
ptr_pos_after = ptr_orig++;
ptr_orig = &`kmem_flags;
ptr_neg_after = ptr_orig--;
ptr_orig = &`kmem_flags;
}
#else
BEGIN
{
ptr_orig = &`max_ncpus;
ptr_pos = &`max_ncpus+1;
ptr_neg = &`max_ncpus-1;
ptr_pos_before = ++ptr_orig;
ptr_orig = &`max_ncpus;
ptr_neg_before = --ptr_orig;
ptr_orig = &`max_ncpus;
ptr_pos_after = ptr_orig++;
ptr_orig = &`max_ncpus;
ptr_neg_after = ptr_orig--;
ptr_orig = &`max_ncpus;
}
#endif /* __APPLE__ */
tick-1
/ptr_pos_before == ptr_pos && ptr_neg_before == ptr_neg &&
ptr_pos_after == ptr_orig && ptr_pos_after == ptr_orig/
{
exit(0);
}
tick-1
/ptr_pos_before != ptr_pos || ptr_neg_before != ptr_neg ||
ptr_pos_after != ptr_orig || ptr_pos_after != ptr_orig/
{
exit(1);
}