2 * Copyright (c) 2002 David E. O'Brien. All rights reserved.
3 * Copyright (c) 1991, 1993
4 * The Regents of the University of California. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 4. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93
34 #ifndef _MACHINE_STDARG_H_
35 #define _MACHINE_STDARG_H_
37 #include <sys/cdefs.h>
38 #include <sys/_types.h>
40 #ifndef _VA_LIST_DECLARED
41 #define _VA_LIST_DECLARED
42 typedef __va_list va_list;
45 #ifdef __GNUCLIKE_BUILTIN_STDARG
47 #define va_start(ap, last) \
48 __builtin_va_start((ap), (last))
50 #define va_arg(ap, type) \
51 __builtin_va_arg((ap), type)
53 #if __ISO_C_VISIBLE >= 1999
54 #define va_copy(dest, src) \
55 __builtin_va_copy((dest), (src))
61 #else /* !__GNUCLIKE_BUILTIN_STDARG */
63 #define __va_size(type) \
64 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
66 #ifdef __GNUCLIKE_BUILTIN_NEXT_ARG
67 #define va_start(ap, last) \
68 ((ap) = (va_list)__builtin_next_arg(last))
69 #else /* !__GNUCLIKE_BUILTIN_NEXT_ARG */
70 #define va_start(ap, last) \
71 ((ap) = (va_list)&(last) + __va_size(last))
72 #endif /* __GNUCLIKE_BUILTIN_NEXT_ARG */
74 #define va_arg(ap, type) \
75 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
79 #endif /* __GNUCLIKE_BUILTIN_STDARG */
81 #endif /* !_MACHINE_STDARG_H_ */