www.pudn.com > tcpipsim.rar > stdarg.h

/*- 
 * Copyright (c) 1991, 1993 
 *	The Regents of the University of California.  All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 * 3. All advertising materials mentioning features or use of this software 
 *    must display the following acknowledgement: 
 *	This product includes software developed by the University of 
 *	California, Berkeley and its contributors. 
 * 4. Neither the name of the University nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE. 
 * 
 *	@(#)stdarg.h	8.1 (Berkeley) 6/10/93 
 */ 
 
#ifndef _STDARG_H_ 
#define	_STDARG_H_ 
 
typedef char *va_list; 
 
#define	__va_promote(type) \ 
	(((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) 
 
#define	va_start(ap, last) \ 
	(ap = ((char *)&(last) + __va_promote(last))) 
 
#ifdef KERNEL 
#define	va_arg(ap, type) \ 
	((type *)(ap += sizeof(type)))[-1] 
#else 
#define	va_arg(ap, type) \ 
	((type *)(ap += sizeof(type) < sizeof(int) ? \ 
		(abort(), 0) : sizeof(type)))[-1] 
#endif 
 
#define	va_end(ap) 
 
#endif /* !_STDARG_H_ */