1 /*- 2 * Copyright (c) 1991, 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 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93 34 * $Id: stdarg.h,v 1.5 1994/08/02 07:39:09 davidg Exp $ 35 */ 36 37 #ifndef _STDARG_H_ 38 #define _STDARG_H_ 39 40 typedef char *va_list; 41 42 #ifdef __GNUC__ 43 #define va_start(AP, LASTARG) \ 44 (AP = ((va_list) __builtin_next_arg (LASTARG))) 45 #else 46 #define __va_promote(type) \ 47 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) 48 49 #define va_start(ap, last) \ 50 (ap = ((va_list)&(last) + __va_promote(last))) 51 #endif 52 53 #ifdef KERNEL 54 #define va_arg(ap, type) \ 55 ((type *)(ap += sizeof(type)))[-1] 56 #else 57 #define va_arg(ap, type) \ 58 ((type *)(ap += sizeof(type) < sizeof(int) ? \ 59 (abort(), 0) : sizeof(type)))[-1] 60 #endif 61 62 #define va_end(ap) 63 64 #endif /* !_STDARG_H_ */ 65