2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/i386/include/stdarg.h,v 1.10 1999/08/28 00:44:26 peter Exp $
35 * $DragonFly: src/sys/i386/include/Attic/stdarg.h,v 1.4 2003/11/09 02:22:35 dillon Exp $
38 #ifndef _MACHINE_STDARG_H_
39 #define _MACHINE_STDARG_H_
44 #if defined(__GNUC__) && (__GNUC__ == 2 && __GNUC_MINOR__ > 95 || __GNUC__ >= 3)
45 typedef __builtin_va_list __va_list; /* internally known to gcc */
47 typedef char * __va_list;
48 #endif /* post GCC 2.95 */
49 #if defined __GNUC__ && !defined(__GNUC_VA_LIST) && !defined(__NO_GNUC_VA_LIST)
50 #define __GNUC_VA_LIST
51 typedef __va_list __gnuc_va_list; /* compatibility w/GNU headers*/
55 * Standard va types and macros
57 #define __va_size(type) \
58 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
61 #define __va_start(ap, last) \
62 ((ap) = (__va_list)__builtin_next_arg(last))
64 #define __va_start(ap, last) \
65 ((ap) = (__va_list)&(last) + __va_size(last))
68 #define __va_arg(ap, type) \
69 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))