1*039cc956Sagc /* $NetBSD: struct.h,v 1.5 2003/08/07 09:44:11 agc Exp $ */ 24d2cbfceScgd 361f28255Scgd /*- 4b7b7322cSperry * Copyright (c) 1983, 1993 5b7b7322cSperry * The Regents of the University of California. All rights reserved. 661f28255Scgd * 761f28255Scgd * Redistribution and use in source and binary forms, with or without 861f28255Scgd * modification, are permitted provided that the following conditions 961f28255Scgd * are met: 1061f28255Scgd * 1. Redistributions of source code must retain the above copyright 1161f28255Scgd * notice, this list of conditions and the following disclaimer. 1261f28255Scgd * 2. Redistributions in binary form must reproduce the above copyright 1361f28255Scgd * notice, this list of conditions and the following disclaimer in the 1461f28255Scgd * documentation and/or other materials provided with the distribution. 15*039cc956Sagc * 3. Neither the name of the University nor the names of its contributors 1661f28255Scgd * may be used to endorse or promote products derived from this software 1761f28255Scgd * without specific prior written permission. 1861f28255Scgd * 1961f28255Scgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2061f28255Scgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2161f28255Scgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2261f28255Scgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2361f28255Scgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2461f28255Scgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2561f28255Scgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2661f28255Scgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2761f28255Scgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2861f28255Scgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2961f28255Scgd * SUCH DAMAGE. 3061f28255Scgd * 31b7b7322cSperry * @(#)struct.h 8.1 (Berkeley) 6/2/93 3261f28255Scgd */ 3361f28255Scgd 3461f28255Scgd #ifndef _STRUCT_H_ 3561f28255Scgd #define _STRUCT_H_ 3661f28255Scgd 3761f28255Scgd /* Offset of the field in the structure. */ 3861f28255Scgd #define fldoff(name, field) \ 3961f28255Scgd ((int)&(((struct name *)0)->field)) 4061f28255Scgd 4161f28255Scgd /* Size of the field in the structure. */ 4261f28255Scgd #define fldsiz(name, field) \ 4361f28255Scgd (sizeof(((struct name *)0)->field)) 4461f28255Scgd 4561f28255Scgd /* Address of the structure from a field. */ 4661f28255Scgd #define strbase(name, addr, field) \ 4761f28255Scgd ((struct name *)((char *)(addr) - fldoff(name, field))) 4861f28255Scgd 4961f28255Scgd #endif /* !_STRUCT_H_ */ 50