| | 1 | /*- |
| | 2 | * Copyright (c) 1983, 1993 |
| | 3 | * The Regents of the University of California. All rights reserved. |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms, with or without |
| | 6 | * modification, are permitted provided that the following conditions |
| | 7 | * are met: |
| | 8 | * 1. Redistributions of source code must retain the above copyright |
| | 9 | * notice, this list of conditions and the following disclaimer. |
| | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 11 | * notice, this list of conditions and the following disclaimer in the |
| | 12 | * documentation and/or other materials provided with the distribution. |
| | 13 | * 3. All advertising materials mentioning features or use of this software |
| | 14 | * must display the following acknowledgement: |
| | 15 | * This product includes software developed by the University of |
| | 16 | * California, Berkeley and its contributors. |
| | 17 | * 4. Neither the name of the University nor the names of its contributors |
| | 18 | * may be used to endorse or promote products derived from this software |
| | 19 | * without specific prior written permission. |
| | 20 | * |
| | 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 31 | * SUCH DAMAGE. |
| | 32 | * |
| | 33 | * @(#)struct.h 8.1 (Berkeley) 6/2/93 |
| | 34 | * |
| | 35 | * $FreeBSD: src/include/struct.h,v 1.1.1.1.14.1 2001/03/05 13:08:49 obrien Exp $ |
| | 36 | * $DragonFly: src/include/struct.h,v 1.2 2003/06/17 04:25:56 dillon Exp $ |
| | 37 | */ |
| | 38 | |
| | 39 | #ifndef _STRUCT_H_ |
| | 40 | #define _STRUCT_H_ |
| | 41 | |
| | 42 | #if __GNUC__ |
| | 43 | #warning "this file includes <struct.h> which is deprecated, use <stddef.h> instead" |
| | 44 | #endif |
| | 45 | |
| | 46 | /* Offset of the field in the structure. */ |
| | 47 | #define fldoff(name, field) \ |
| | 48 | ((int)&(((struct name *)0)->field)) |
| | 49 | |
| | 50 | /* Size of the field in the structure. */ |
| | 51 | #define fldsiz(name, field) \ |
| | 52 | (sizeof(((struct name *)0)->field)) |
| | 53 | |
| | 54 | /* Address of the structure from a field. */ |
| | 55 | #define strbase(name, addr, field) \ |
| | 56 | ((struct name *)((char *)(addr) - fldoff(name, field))) |
| | 57 | |
| | 58 | #endif /* !_STRUCT_H_ */ |
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