1*2633Sahl /* 2*2633Sahl * CDDL HEADER START 3*2633Sahl * 4*2633Sahl * The contents of this file are subject to the terms of the 5*2633Sahl * Common Development and Distribution License (the "License"). 6*2633Sahl * You may not use this file except in compliance with the License. 7*2633Sahl * 8*2633Sahl * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*2633Sahl * or http://www.opensolaris.org/os/licensing. 10*2633Sahl * See the License for the specific language governing permissions 11*2633Sahl * and limitations under the License. 12*2633Sahl * 13*2633Sahl * When distributing Covered Code, include this CDDL HEADER in each 14*2633Sahl * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*2633Sahl * If applicable, add the following below this CDDL HEADER, with the 16*2633Sahl * fields enclosed by brackets "[]" replaced with your own identifying 17*2633Sahl * information: Portions Copyright [yyyy] [name of copyright owner] 18*2633Sahl * 19*2633Sahl * CDDL HEADER END 20*2633Sahl */ 21*2633Sahl 22*2633Sahl /* 23*2633Sahl * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*2633Sahl * Use is subject to license terms. 25*2633Sahl */ 26*2633Sahl #pragma ident "%Z%%M% %I% %E% SMI" 27*2633Sahl 28*2633Sahl /* 29*2633Sahl * ASSERTION: offsetof can be used anywhere in a D program that an integer 30*2633Sahl * constant can be used. 31*2633Sahl * 32*2633Sahl * SECTION: Structs and Unions/Member Sizes and Offsets 33*2633Sahl * 34*2633Sahl * NOTES: 35*2633Sahl * 36*2633Sahl */ 37*2633Sahl 38*2633Sahl #pragma D option quiet 39*2633Sahl 40*2633Sahl typedef struct record { 41*2633Sahl char c; 42*2633Sahl int x; 43*2633Sahl int y; 44*2633Sahl } record_t; 45*2633Sahl 46*2633Sahl BEGIN 47*2633Sahl { 48*2633Sahl 49*2633Sahl add = offsetof(record_t, c) + offsetof(record_t, x) + 50*2633Sahl offsetof(record_t, y); 51*2633Sahl sub = offsetof(record_t, y) - offsetof(record_t, x); 52*2633Sahl mul = offsetof(record_t, x) * offsetof(record_t, c); 53*2633Sahl div = offsetof(record_t, y) / offsetof(record_t, x); 54*2633Sahl 55*2633Sahl printf("offsetof(record_t, c) = %d\n", offsetof(record_t, c)); 56*2633Sahl printf("offsetof(record_t, x) = %d\n", offsetof(record_t, x)); 57*2633Sahl printf("offsetof(record_t, y) = %d\n", offsetof(record_t, y)); 58*2633Sahl 59*2633Sahl printf("Addition of offsets (c+x+y)= %d\n", add); 60*2633Sahl printf("Subtraction of offsets (y-x)= %d\n", sub); 61*2633Sahl printf("Multiplication of offsets (x*c) = %d\n", mul); 62*2633Sahl printf("Division of offsets (y/x) = %d\n", div); 63*2633Sahl 64*2633Sahl exit(0); 65*2633Sahl } 66*2633Sahl 67*2633Sahl END 68*2633Sahl /(8 != offsetof(record_t, y)) || (4 != offsetof(record_t, x)) || 69*2633Sahl (0 != offsetof(record_t, c)) || (12 != add) || (4 != sub) || (0 != mul) 70*2633Sahl || (2 != div)/ 71*2633Sahl { 72*2633Sahl exit(1); 73*2633Sahl } 74