1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* stdarg.h for GNU.
29   Note that the type used in va_arg is supposed to match the
30   actual type **after default promotions**.
31   Thus, va_arg (..., short) is not valid.  */
32
33#ifndef _STDARG_H
34#ifndef _ANSI_STDARG_H_
35#ifndef __need___va_list
36#define _STDARG_H
37#define _ANSI_STDARG_H_
38#endif /* not __need___va_list */
39#undef __need___va_list
40
41#ifdef __clipper__
42#include <va-clipper.h>
43#else
44#ifdef __m88k__
45#include <va-m88k.h>
46#else
47#ifdef __i860__
48#include <va-i860.h>
49#else
50#ifdef __hppa__
51#include <va-pa.h>
52#else
53#ifdef __mips__
54#include <va-mips.h>
55#else
56#ifdef __sparc__
57#include <va-sparc.h>
58#else
59#ifdef __i960__
60#include <va-i960.h>
61#else
62#ifdef __alpha__
63#include <va-alpha.h>
64#else
65#if defined (__H8300__) || defined (__H8300H__)
66#include <va-h8300.h>
67#else
68#if defined (__PPC__) && defined (_CALL_SYSV)
69#include <va-ppc.h>
70#else
71
72/* Define __gnuc_va_list.  */
73
74#ifndef __GNUC_VA_LIST
75#define __GNUC_VA_LIST
76#if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) || defined(__NetBSD__)
77typedef char *__gnuc_va_list;
78#else
79typedef void *__gnuc_va_list;
80#endif
81#endif
82
83/* Define the standard macros for the user,
84   if this invocation was from the user program.  */
85#ifdef _STDARG_H
86
87/* Amount of space required in an argument list for an arg of type TYPE.
88   TYPE may alternatively be an expression whose type is used.  */
89
90#if defined(sysV68)
91#define __va_rounded_size(TYPE)  \
92  (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short))
93#else
94#define __va_rounded_size(TYPE)  \
95  (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
96#endif
97
98#define va_start(AP, LASTARG) 						\
99 (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG)))
100
101#undef va_end
102void va_end (__gnuc_va_list);		/* Defined in libgcc.a */
103#define va_end(AP)	((void)0)
104
105/* We cast to void * and then to TYPE * because this avoids
106   a warning about increasing the alignment requirement.  */
107
108#if defined (__arm__) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__)
109/* This is for little-endian machines; small args are padded upward.  */
110#define va_arg(AP, TYPE)						\
111 (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),	\
112  *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
113#else /* big-endian */
114/* This is for big-endian machines; small args are padded downward.  */
115#define va_arg(AP, TYPE)						\
116 (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),	\
117  *((TYPE *) (void *) ((char *) (AP)					\
118		       - ((sizeof (TYPE) < __va_rounded_size (char)	\
119			   ? sizeof (TYPE) : __va_rounded_size (TYPE))))))
120#endif /* big-endian */
121#endif /* _STDARG_H */
122
123#endif /* not powerpc with V.4 calling sequence */
124#endif /* not h8300 */
125#endif /* not alpha */
126#endif /* not i960 */
127#endif /* not sparc */
128#endif /* not mips */
129#endif /* not hppa */
130#endif /* not i860 */
131#endif /* not m88k */
132#endif /* not clipper */
133
134#ifdef _STDARG_H
135/* Define va_list, if desired, from __gnuc_va_list. */
136/* We deliberately do not define va_list when called from
137   stdio.h, because ANSI C says that stdio.h is not supposed to define
138   va_list.  stdio.h needs to have access to that data type,
139   but must not use that name.  It should use the name __gnuc_va_list,
140   which is safe because it is reserved for the implementation.  */
141
142#ifdef _HIDDEN_VA_LIST  /* On OSF1, this means varargs.h is "half-loaded".  */
143#undef _VA_LIST
144#endif
145
146#ifdef _BSD_VA_LIST
147#undef _BSD_VA_LIST
148#endif
149
150#ifdef __svr4__
151/* SVR4.2 uses _VA_LIST for an internal alias for va_list,
152   so we must avoid testing it and setting it here.
153   SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
154   have no conflict with that.  */
155#ifndef _VA_LIST_
156#define _VA_LIST_
157#ifdef __i860__
158#ifndef _VA_LIST
159#define _VA_LIST va_list
160#endif
161#endif /* __i860__ */
162typedef __gnuc_va_list va_list;
163#endif /* _VA_LIST_ */
164#else /* not __svr4__ */
165
166/* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
167   But on BSD NET2 we must not test or define or undef it.
168   (Note that the comments in NET 2's ansi.h
169   are incorrect for _VA_LIST_--see stdio.h!)  */
170#if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
171/* The macro _VA_LIST_DEFINED is used in Windows NT 3.5  */
172#ifndef _VA_LIST_DEFINED
173/* The macro _VA_LIST is used in SCO Unix 3.2.  */
174#ifndef _VA_LIST
175/* The macro _VA_LIST_T_H is used in the Bull dpx2  */
176#ifndef _VA_LIST_T_H
177typedef __gnuc_va_list va_list;
178#endif /* not _VA_LIST_T_H */
179#endif /* not _VA_LIST */
180#endif /* not _VA_LIST_DEFINED */
181#if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
182#define _VA_LIST_
183#endif
184#ifndef _VA_LIST
185#define _VA_LIST
186#endif
187#ifndef _VA_LIST_DEFINED
188#define _VA_LIST_DEFINED
189#endif
190#ifndef _VA_LIST_T_H
191#define _VA_LIST_T_H
192#endif
193
194#endif /* not _VA_LIST_, except on certain systems */
195
196#endif /* not __svr4__ */
197
198#endif /* _STDARG_H */
199
200#endif /* not _ANSI_STDARG_H_ */
201#endif /* not _STDARG_H */
202