1*2be1a816SJohn Birrell /* 2*2be1a816SJohn Birrell * CDDL HEADER START 3*2be1a816SJohn Birrell * 4*2be1a816SJohn Birrell * The contents of this file are subject to the terms of the 5*2be1a816SJohn Birrell * Common Development and Distribution License (the "License"). 6*2be1a816SJohn Birrell * You may not use this file except in compliance with the License. 7*2be1a816SJohn Birrell * 8*2be1a816SJohn Birrell * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*2be1a816SJohn Birrell * or http://www.opensolaris.org/os/licensing. 10*2be1a816SJohn Birrell * See the License for the specific language governing permissions 11*2be1a816SJohn Birrell * and limitations under the License. 12*2be1a816SJohn Birrell * 13*2be1a816SJohn Birrell * When distributing Covered Code, include this CDDL HEADER in each 14*2be1a816SJohn Birrell * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*2be1a816SJohn Birrell * If applicable, add the following below this CDDL HEADER, with the 16*2be1a816SJohn Birrell * fields enclosed by brackets "[]" replaced with your own identifying 17*2be1a816SJohn Birrell * information: Portions Copyright [yyyy] [name of copyright owner] 18*2be1a816SJohn Birrell * 19*2be1a816SJohn Birrell * CDDL HEADER END 20*2be1a816SJohn Birrell */ 21*2be1a816SJohn Birrell 22*2be1a816SJohn Birrell /* 23*2be1a816SJohn Birrell * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*2be1a816SJohn Birrell * Use is subject to license terms. 25*2be1a816SJohn Birrell */ 26*2be1a816SJohn Birrell #pragma ident "%Z%%M% %I% %E% SMI" 27*2be1a816SJohn Birrell 28*2be1a816SJohn Birrell /* 29*2be1a816SJohn Birrell * ASSERTION: offsetof can be used anywhere in a D program that an integer 30*2be1a816SJohn Birrell * constant can be used. 31*2be1a816SJohn Birrell * 32*2be1a816SJohn Birrell * SECTION: Structs and Unions/Member Sizes and Offsets 33*2be1a816SJohn Birrell * 34*2be1a816SJohn Birrell * NOTES: 35*2be1a816SJohn Birrell * 36*2be1a816SJohn Birrell */ 37*2be1a816SJohn Birrell 38*2be1a816SJohn Birrell #pragma D option quiet 39*2be1a816SJohn Birrell 40*2be1a816SJohn Birrell typedef struct record { 41*2be1a816SJohn Birrell char c; 42*2be1a816SJohn Birrell int x; 43*2be1a816SJohn Birrell int y; 44*2be1a816SJohn Birrell } record_t; 45*2be1a816SJohn Birrell 46*2be1a816SJohn Birrell BEGIN 47*2be1a816SJohn Birrell { 48*2be1a816SJohn Birrell 49*2be1a816SJohn Birrell add = offsetof(record_t, c) + offsetof(record_t, x) + 50*2be1a816SJohn Birrell offsetof(record_t, y); 51*2be1a816SJohn Birrell sub = offsetof(record_t, y) - offsetof(record_t, x); 52*2be1a816SJohn Birrell mul = offsetof(record_t, x) * offsetof(record_t, c); 53*2be1a816SJohn Birrell div = offsetof(record_t, y) / offsetof(record_t, x); 54*2be1a816SJohn Birrell 55*2be1a816SJohn Birrell printf("offsetof(record_t, c) = %d\n", offsetof(record_t, c)); 56*2be1a816SJohn Birrell printf("offsetof(record_t, x) = %d\n", offsetof(record_t, x)); 57*2be1a816SJohn Birrell printf("offsetof(record_t, y) = %d\n", offsetof(record_t, y)); 58*2be1a816SJohn Birrell 59*2be1a816SJohn Birrell printf("Addition of offsets (c+x+y)= %d\n", add); 60*2be1a816SJohn Birrell printf("Subtraction of offsets (y-x)= %d\n", sub); 61*2be1a816SJohn Birrell printf("Multiplication of offsets (x*c) = %d\n", mul); 62*2be1a816SJohn Birrell printf("Division of offsets (y/x) = %d\n", div); 63*2be1a816SJohn Birrell 64*2be1a816SJohn Birrell exit(0); 65*2be1a816SJohn Birrell } 66*2be1a816SJohn Birrell 67*2be1a816SJohn Birrell END 68*2be1a816SJohn Birrell /(8 != offsetof(record_t, y)) || (4 != offsetof(record_t, x)) || 69*2be1a816SJohn Birrell (0 != offsetof(record_t, c)) || (12 != add) || (4 != sub) || (0 != mul) 70*2be1a816SJohn Birrell || (2 != div)/ 71*2be1a816SJohn Birrell { 72*2be1a816SJohn Birrell exit(1); 73*2be1a816SJohn Birrell } 74