1 /* Copyright (C) 1989-2023 Free Software Foundation, Inc.
2
3 This file is part of GCC.
4
5 GCC is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
9
10 GCC is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 Under Section 7 of GPL version 3, you are granted additional
16 permissions described in the GCC Runtime Library Exception, version
17 3.1, as published by the Free Software Foundation.
18
19 You should have received a copy of the GNU General Public License and
20 a copy of the GCC Runtime Library Exception along with this program;
21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
22 <http://www.gnu.org/licenses/>. */
23
24 /*
25 * ISO C Standard: 7.15 Variable arguments <stdarg.h>
26 */
27
28 #ifndef _STDARG_H
29 #ifndef _ANSI_STDARG_H_
30 #ifndef __need___va_list
31 #define _STDARG_H
32 #define _ANSI_STDARG_H_
33 #endif /* not __need___va_list */
34 #undef __need___va_list
35
36 /* Define __gnuc_va_list. */
37
38 #ifndef __GNUC_VA_LIST
39 #define __GNUC_VA_LIST
40 typedef __builtin_va_list __gnuc_va_list;
41 #endif
42
43 /* Define the standard macros for the user,
44 if this invocation was from the user program. */
45 #ifdef _STDARG_H
46
47 #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L
48 #define va_start(v, ...) __builtin_va_start(v, 0)
49 #else
50 #define va_start(v,l) __builtin_va_start(v,l)
51 #endif
52 #define va_end(v) __builtin_va_end(v)
53 #define va_arg(v,l) __builtin_va_arg(v,l)
54 #if !defined(__STRICT_ANSI__) || __STDC_VERSION__ + 0 >= 199900L \
55 || __cplusplus + 0 >= 201103L
56 #define va_copy(d,s) __builtin_va_copy(d,s)
57 #endif
58 #define __va_copy(d,s) __builtin_va_copy(d,s)
59
60 /* Define va_list, if desired, from __gnuc_va_list. */
61 /* We deliberately do not define va_list when called from
62 stdio.h, because ANSI C says that stdio.h is not supposed to define
63 va_list. stdio.h needs to have access to that data type,
64 but must not use that name. It should use the name __gnuc_va_list,
65 which is safe because it is reserved for the implementation. */
66
67 #ifdef _BSD_VA_LIST
68 #undef _BSD_VA_LIST
69 #endif
70
71 #if defined(__svr4__) || (defined(_SCO_DS) && !defined(__VA_LIST))
72 /* SVR4.2 uses _VA_LIST for an internal alias for va_list,
73 so we must avoid testing it and setting it here.
74 SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
75 have no conflict with that. */
76 #ifndef _VA_LIST_
77 #define _VA_LIST_
78 #ifdef __i860__
79 #ifndef _VA_LIST
80 #define _VA_LIST va_list
81 #endif
82 #endif /* __i860__ */
83 typedef __gnuc_va_list va_list;
84 #ifdef _SCO_DS
85 #define __VA_LIST
86 #endif
87 #endif /* _VA_LIST_ */
88 #else /* not __svr4__ || _SCO_DS */
89
90 /* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
91 But on BSD NET2 we must not test or define or undef it.
92 (Note that the comments in NET 2's ansi.h
93 are incorrect for _VA_LIST_--see stdio.h!) */
94 #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
95 /* The macro _VA_LIST_DEFINED is used in Windows NT 3.5 */
96 #ifndef _VA_LIST_DEFINED
97 /* The macro _VA_LIST is used in SCO Unix 3.2. */
98 #ifndef _VA_LIST
99 /* The macro _VA_LIST_T_H is used in the Bull dpx2 */
100 #ifndef _VA_LIST_T_H
101 /* The macro __va_list__ is used by BeOS. */
102 #ifndef __va_list__
103 typedef __gnuc_va_list va_list;
104 #endif /* not __va_list__ */
105 #endif /* not _VA_LIST_T_H */
106 #endif /* not _VA_LIST */
107 #endif /* not _VA_LIST_DEFINED */
108 #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
109 #define _VA_LIST_
110 #endif
111 #ifndef _VA_LIST
112 #define _VA_LIST
113 #endif
114 #ifndef _VA_LIST_DEFINED
115 #define _VA_LIST_DEFINED
116 #endif
117 #ifndef _VA_LIST_T_H
118 #define _VA_LIST_T_H
119 #endif
120 #ifndef __va_list__
121 #define __va_list__
122 #endif
123
124 #endif /* not _VA_LIST_, except on certain systems */
125
126 #endif /* not __svr4__ */
127
128 #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L
129 #define __STDC_VERSION_STDARG_H__ 202311L
130 #endif
131
132 #endif /* _STDARG_H */
133
134 #endif /* not _ANSI_STDARG_H_ */
135 #endif /* not _STDARG_H */