2 * Copyright (c) 2002 David E. O'Brien. All rights reserved.
3 * Copyright (c) 1990, 1993
4 * The Regents of the University of California. All rights reserved.
5 * (c) UNIX System Laboratories, Inc.
6 * All or some portions of this file are derived from material licensed
7 * to the University of California by American Telephone and Telegraph
8 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
9 * the permission of UNIX System Laboratories, Inc.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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39 * @(#)varargs.h 8.2 (Berkeley) 3/22/94
43 #ifndef _MACHINE_VARARGS_H_
44 #define _MACHINE_VARARGS_H_
47 #error this file needs sys/cdefs.h as a prerequisite
50 #ifdef __GNUCLIKE_BUILTIN_VARARGS
52 #include <sys/_types.h>
54 #ifndef _VA_LIST_DECLARED
55 #define _VA_LIST_DECLARED
56 typedef __va_list va_list;
59 typedef int __builtin_va_alist_t __attribute__((__mode__(__word__)));
61 #define va_alist __builtin_va_alist
62 #define va_dcl __builtin_va_alist_t __builtin_va_alist; ...
63 #define va_start(ap) __builtin_varargs_start(ap)
64 #define va_arg(ap, type) __builtin_va_arg((ap), type)
65 #define va_end(ap) __builtin_va_end(ap)
67 #else /* !__GNUCLIKE_BUILTIN_VARARGS */
69 typedef char *va_list;
71 #define __va_size(type) \
72 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
74 #if defined(__GNUCLIKE_BUILTIN_VAALIST)
75 #define va_alist __builtin_va_alist
77 #define va_dcl int va_alist; ...
79 #define va_start(ap) \
80 ((ap) = (va_list)&va_alist)
82 #define va_arg(ap, type) \
83 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
87 #endif /* __GNUCLIKE_BUILTIN_VARARGS */
89 #endif /* !_MACHINE_VARARGS_H_ */