![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to varargs.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [GCC 2.x] / gcc / ginclude|
Return to varargs.h CVS log | Up to [GCC 2.x] / gcc / ginclude |
1.1 root 1: /* Record that this is varargs.h; this turns off stdarg.h. */
2:
3: #ifndef _VARARGS_H
4: #define _VARARGS_H
5:
6: #ifdef __sparc__
7: #include <va-sparc.h>
8: #else
9: #ifdef __spur__
10: #include <va-spur.h>
11: #else
12: #ifdef __mips__
13: #include <va-mips.h>
14: #else
15: #ifdef __i860__
16: #include <va-i860.h>
17: #else
18: #ifdef __pyr__
19: #include <va-pyr.h>
20: #else
21: #ifdef __clipper__
22: #include <va-clipper.h>
23: #else
24: #ifdef __m88k__
25: #include <va-m88k.h>
26: #else
27: #if defined(__hppa__) || defined(hp800)
28: #include <va-pa.h>
29: #else
30: #ifdef __i960__
31: #include <va-i960.h>
32: #else
33: #ifdef __alpha__
34: #include <va-alpha.h>
35: #else
36: #if defined (__H8300__) || defined (__H8300H__)
37: #include <va-h8300.h>
38: #else
39:
40: #ifdef __NeXT__
41:
42: /* On Next, erase any vestiges of stdarg.h. */
43:
44: #ifdef _ANSI_STDARG_H_
45: #define _VA_LIST_
46: #endif
47: #define _ANSI_STDARG_H_
48:
49: #undef va_alist
50: #undef va_dcl
51: #undef va_list
52: #undef va_start
53: #undef va_end
54: #undef __va_rounded_size
55: #undef va_arg
56: #endif /* __NeXT__ */
57:
58: /* In GCC version 2, we want an ellipsis at the end of the declaration
59: of the argument list. GCC version 1 can't parse it. */
60:
61: #if __GNUC__ > 1
62: #define __va_ellipsis ...
63: #else
64: #define __va_ellipsis
65: #endif
66:
67: /* These macros implement traditional (non-ANSI) varargs
68: for GNU C. */
69:
70: #define va_alist __builtin_va_alist
71: /* The ... causes current_function_varargs to be set in cc1. */
72: #define va_dcl int __builtin_va_alist; __va_ellipsis
73:
74: /* Define __gnuc_va_list, just as in gstdarg.h. */
75:
76: #ifndef __GNUC_VA_LIST
77: #define __GNUC_VA_LIST
78: #if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX)
79: typedef char *__gnuc_va_list;
80: #else
81: typedef void *__gnuc_va_list;
82: #endif
83: #endif
84:
85: #define va_start(AP) AP=(char *) &__builtin_va_alist
86:
87: #define va_end(AP)
88:
89: #if defined(sysV68)
90: #define __va_rounded_size(TYPE) \
91: (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short))
92: #else
93: #define __va_rounded_size(TYPE) \
94: (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
95: #endif
96:
97: #if defined (__arm__) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__)
98: /* This is for little-endian machines; small args are padded upward. */
99: #define va_arg(AP, TYPE) \
100: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
101: *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
102: #else /* big-endian */
103: /* This is for big-endian machines; small args are padded downward. */
104: #define va_arg(AP, TYPE) \
105: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
106: *((TYPE *) (void *) ((char *) (AP) - ((sizeof (TYPE) < 4 \
107: ? sizeof (TYPE) \
108: : __va_rounded_size (TYPE))))))
109: #endif /* big-endian */
110:
111: #endif /* not h8300 */
112: #endif /* not alpha */
113: #endif /* not i960 */
114: #endif /* not hppa */
115: #endif /* not m88k */
116: #endif /* not clipper */
117: #endif /* not pyr */
118: #endif /* not i860 */
119: #endif /* not mips */
120: #endif /* not spur */
121: #endif /* not sparc */
122: #endif /* not _VARARGS_H */
123:
124: /* Define va_list from __gnuc_va_list. */
125:
126: #ifdef _HIDDEN_VA_LIST /* On OSF1, this means varargs.h is "half-loaded". */
127: #undef _VA_LIST
128: #endif
129:
130: #ifdef __svr4__
131: /* SVR4.2 uses _VA_LIST for an internal alias for va_list,
132: so we must avoid testing it and setting it here.
133: SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
134: have no conflict with that. */
135: #ifndef _VA_LIST_
136: #define _VA_LIST_
137: #ifdef __i860__
138: #ifndef _VA_LIST
139: #define _VA_LIST va_list
140: #endif
141: #endif /* __i860__ */
142: typedef __gnuc_va_list va_list;
143: #endif /* _VA_LIST_ */
144:
145: #else /* not __svr4__ */
146:
147: /* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
148: But on BSD NET2 we must not test or define or undef it.
149: (Note that the comments in NET 2's ansi.h
150: are incorrect for _VA_LIST_--see stdio.h!) */
151: /* Michael Eriksson <[email protected]> at Thu Sep 30 11:00:57 1993:
152: Sequent defines _VA_LIST_ in <machine/machtypes.h> to be the type to
153: use for va_list (``typedef _VA_LIST_ va_list'') */
154: #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__)
155: /* The macro _VA_LIST is used in SCO Unix 3.2. */
156: #ifndef _VA_LIST
157: /* The macro _VA_LIST_T_H is used in the Bull dpx2 */
158: #ifndef _VA_LIST_T_H
159: #define _VA_LIST_T_H
160: #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
161: #define _VA_LIST_
162: #endif
163: #define _VA_LIST
164: typedef __gnuc_va_list va_list;
165: #endif /* not _VA_LIST_T_H */
166: #endif /* not _VA_LIST */
167: #endif /* not _VA_LIST_, except on certain systems */
168:
169: #endif /* not __svr4__ */
170:
171: /* The next BSD release (if there is one) wants this symbol to be
172: undefined instead of _VA_LIST_. */
173: #ifdef _BSD_VA_LIST
174: #undef _BSD_VA_LIST
175: #endif
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.