empserver/include/struct.h

41 lines
1.5 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---
*
* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
* related information and legal notices. It is expected that any future
* projects/authors will amend these files as needed.
*
* ---
*
* struct.h: Used to access information relating to the fields of a structure.
*
* Known contributors to this file:
*
*/
#ifndef _STRUCT_H_
#define _STRUCT_H_
#define fldoff(str, fld) ((int)&(((struct str *)0)->fld))
#define fldsiz(str, fld) (sizeof(((struct str *)0)->fld))
#define strbase(str, ptr, fld) ((struct str *)((s_char *)(ptr)-fldoff(str, fld)))
#endif /* _STRUCT_H_ */