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1.1 root 1: /* stdarg.h for GNU.
2: Note that the type used in va_arg is supposed to match the
3: actual type **after default promotions**.
4: Thus, va_arg (..., short) is not valid. */
5:
6: #ifndef _STDARG_H
7: #ifndef _ANSI_STDARG_H_
8: #ifndef __need___va_list
9: #define _STDARG_H
10: #define _ANSI_STDARG_H_
11: #endif /* not __need___va_list */
12: #undef __need___va_list
13:
14: #ifdef __clipper__
15: #include <va-clipper.h>
16: #else
17: #ifdef __m88k__
18: #include <va-m88k.h>
19: #else
20: #ifdef __i860__
21: #include <va-i860.h>
22: #else
23: #ifdef __hppa__
24: #include <va-pa.h>
25: #else
26: #ifdef __mips__
27: #include <va-mips.h>
28: #else
29: #ifdef __sparc__
30: #include <va-sparc.h>
31: #else
32: #ifdef __i960__
33: #include <va-i960.h>
34: #else
35: #ifdef __alpha__
36: #include <va-alpha.h>
37: #else
38: #if defined (__H8300__) || defined (__H8300H__)
39: #include <va-h8300.h>
40: #else
1.1.1.2 ! root 41: #if defined (__PPC__) && defined (_CALL_SYSV)
! 42: #include <va-ppc.h>
! 43: #else
1.1 root 44:
45: /* Define __gnuc_va_list. */
46:
47: #ifndef __GNUC_VA_LIST
48: #define __GNUC_VA_LIST
1.1.1.2 ! root 49: #if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) || defined(__NetBSD__)
1.1 root 50: typedef char *__gnuc_va_list;
51: #else
52: typedef void *__gnuc_va_list;
53: #endif
54: #endif
55:
56: /* Define the standard macros for the user,
57: if this invocation was from the user program. */
58: #ifdef _STDARG_H
59:
60: /* Amount of space required in an argument list for an arg of type TYPE.
61: TYPE may alternatively be an expression whose type is used. */
62:
63: #if defined(sysV68)
64: #define __va_rounded_size(TYPE) \
65: (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short))
66: #else
67: #define __va_rounded_size(TYPE) \
68: (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
69: #endif
70:
71: #define va_start(AP, LASTARG) \
72: (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG)))
73:
74: #undef va_end
75: void va_end (__gnuc_va_list); /* Defined in libgcc.a */
1.1.1.2 ! root 76: #define va_end(AP) ((void)0)
1.1 root 77:
78: /* We cast to void * and then to TYPE * because this avoids
79: a warning about increasing the alignment requirement. */
80:
81: #if defined (__arm__) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__)
82: /* This is for little-endian machines; small args are padded upward. */
83: #define va_arg(AP, TYPE) \
84: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
85: *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
86: #else /* big-endian */
87: /* This is for big-endian machines; small args are padded downward. */
88: #define va_arg(AP, TYPE) \
89: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
1.1.1.2 ! root 90: *((TYPE *) (void *) ((char *) (AP) \
! 91: - ((sizeof (TYPE) < __va_rounded_size (char) \
! 92: ? sizeof (TYPE) : __va_rounded_size (TYPE))))))
1.1 root 93: #endif /* big-endian */
94: #endif /* _STDARG_H */
95:
1.1.1.2 ! root 96: #endif /* not powerpc with V.4 calling sequence */
1.1 root 97: #endif /* not h8300 */
98: #endif /* not alpha */
99: #endif /* not i960 */
100: #endif /* not sparc */
101: #endif /* not mips */
102: #endif /* not hppa */
103: #endif /* not i860 */
104: #endif /* not m88k */
105: #endif /* not clipper */
106:
107: #ifdef _STDARG_H
108: /* Define va_list, if desired, from __gnuc_va_list. */
109: /* We deliberately do not define va_list when called from
110: stdio.h, because ANSI C says that stdio.h is not supposed to define
111: va_list. stdio.h needs to have access to that data type,
112: but must not use that name. It should use the name __gnuc_va_list,
113: which is safe because it is reserved for the implementation. */
114:
115: #ifdef _HIDDEN_VA_LIST /* On OSF1, this means varargs.h is "half-loaded". */
116: #undef _VA_LIST
117: #endif
118:
119: #ifdef _BSD_VA_LIST
120: #undef _BSD_VA_LIST
121: #endif
122:
123: #ifdef __svr4__
124: /* SVR4.2 uses _VA_LIST for an internal alias for va_list,
125: so we must avoid testing it and setting it here.
126: SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
127: have no conflict with that. */
128: #ifndef _VA_LIST_
129: #define _VA_LIST_
130: #ifdef __i860__
131: #ifndef _VA_LIST
132: #define _VA_LIST va_list
133: #endif
134: #endif /* __i860__ */
135: typedef __gnuc_va_list va_list;
136: #endif /* _VA_LIST_ */
137: #else /* not __svr4__ */
138:
139: /* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
140: But on BSD NET2 we must not test or define or undef it.
141: (Note that the comments in NET 2's ansi.h
142: are incorrect for _VA_LIST_--see stdio.h!) */
1.1.1.2 ! root 143: #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
! 144: /* The macro _VA_LIST_DEFINED is used in Windows NT 3.5 */
! 145: #ifndef _VA_LIST_DEFINED
1.1 root 146: /* The macro _VA_LIST is used in SCO Unix 3.2. */
147: #ifndef _VA_LIST
148: /* The macro _VA_LIST_T_H is used in the Bull dpx2 */
149: #ifndef _VA_LIST_T_H
150: typedef __gnuc_va_list va_list;
151: #endif /* not _VA_LIST_T_H */
152: #endif /* not _VA_LIST */
1.1.1.2 ! root 153: #endif /* not _VA_LIST_DEFINED */
! 154: #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
! 155: #define _VA_LIST_
! 156: #endif
! 157: #ifndef _VA_LIST
! 158: #define _VA_LIST
! 159: #endif
! 160: #ifndef _VA_LIST_DEFINED
! 161: #define _VA_LIST_DEFINED
! 162: #endif
! 163: #ifndef _VA_LIST_T_H
! 164: #define _VA_LIST_T_H
! 165: #endif
! 166:
! 167: #endif /* not _VA_LIST_, except on certain systems */
1.1 root 168:
169: #endif /* not __svr4__ */
170:
171: #endif /* _STDARG_H */
172:
173: #endif /* not _ANSI_STDARG_H_ */
174: #endif /* not _STDARG_H */
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