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1.1 root 1: #ifndef _STDDEF_H
2: #ifndef _STDDEF_H_
3: #ifndef _ANSI_STDDEF_H
4: #ifndef __STDDEF_H__
5:
6: /* Any one of these symbols __need_* means that GNU libc
7: wants us just to define one data type. So don't define
8: the symbols that indicate this file's entire job has been done. */
9: #if (!defined(__need_wchar_t) && !defined(__need_size_t) \
10: && !defined(__need_ptrdiff_t) && !defined(__need_NULL))
11: #define _STDDEF_H
12: #define _STDDEF_H_
13: /* [email protected] says the NeXT needs this. */
14: #define _ANSI_STDDEF_H
15: /* Irix 5.1 needs this. */
16: #define __STDDEF_H__
17: #endif
18:
19: #ifndef __sys_stdtypes_h
20: /* This avoids lossage on SunOS but only if stdtypes.h comes first.
21: There's no way to win with the other order! Sun lossage. */
22:
23: /* On 4.3bsd-net2, make sure ansi.h is included, so we have
24: one less case to deal with in the following. */
25: #if defined (__BSD_NET2__) || defined (____386BSD____) || defined (__FreeBSD__) || defined(__NetBSD__)
26: #include <machine/ansi.h>
27: #endif
28:
29: /* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
1.1.1.2 ! root 30: defined if the corresponding type is *not* defined.
! 31: FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_ */
! 32: #if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_)
1.1 root 33: #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_)
34: #define _SIZE_T
35: #endif
36: #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_)
37: #define _PTRDIFF_T
38: #endif
39: /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
40: instead of _WCHAR_T_. */
41: #if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_)
42: #ifndef _BSD_WCHAR_T_
43: #define _WCHAR_T
44: #endif
45: #endif
46: /* Undef _FOO_T_ if we are supposed to define foo_t. */
47: #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_)
48: #undef _PTRDIFF_T_
49: #undef _BSD_PTRDIFF_T_
50: #endif
51: #if defined (__need_size_t) || defined (_STDDEF_H_)
52: #undef _SIZE_T_
53: #undef _BSD_SIZE_T_
54: #endif
55: #if defined (__need_wchar_t) || defined (_STDDEF_H_)
56: #undef _WCHAR_T_
57: #undef _BSD_WCHAR_T_
58: #endif
1.1.1.2 ! root 59: #endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) */
1.1 root 60:
61: /* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
62: Just ignore it. */
63: #if defined (__sequent__) && defined (_PTRDIFF_T_)
64: #undef _PTRDIFF_T_
65: #endif
66:
1.1.1.2 ! root 67: /* On VxWorks, <type/vxTypesBase.h> may have defined macros like
! 68: _TYPE_size_t which will typedef size_t. fixincludes patched the
! 69: vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
! 70: not defined, and so that defining this macro defines _GCC_SIZE_T.
! 71: If we find that the macros are still defined at this point, we must
! 72: invoke them so that the type is defined as expected. */
! 73: #if defined (TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_))
! 74: _TYPE_ptrdiff_t;
! 75: #undef _TYPE_ptrdiff_t
! 76: #endif
! 77: #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_))
! 78: _TYPE_size_t;
! 79: #undef _TYPE_size_t
! 80: #endif
! 81: #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_))
! 82: _TYPE_wchar_t;
! 83: #undef _TYPE_wchar_t
! 84: #endif
! 85:
1.1 root 86: /* In case nobody has defined these types, but we aren't running under
87: GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE__TYPE__, and
88: __WCHAR_TYPE__ have reasonable values. This can happen if the
89: parts of GCC is compiled by an older compiler, that actually
90: include gstddef.h, such as collect2. */
91:
92: /* Signed type of difference of two pointers. */
93:
94: /* Define this type if we are doing the whole job,
95: or if we want this type in particular. */
96: #if defined (_STDDEF_H) || defined (__need_ptrdiff_t)
97: #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */
98: #ifndef _T_PTRDIFF_
99: #ifndef _T_PTRDIFF
100: #ifndef __PTRDIFF_T
101: #ifndef _PTRDIFF_T_
102: #ifndef _BSD_PTRDIFF_T_
103: #ifndef ___int_ptrdiff_t_h
104: #ifndef _GCC_PTRDIFF_T
105: #define _PTRDIFF_T
106: #define _T_PTRDIFF_
107: #define _T_PTRDIFF
108: #define __PTRDIFF_T
109: #define _PTRDIFF_T_
110: #define _BSD_PTRDIFF_T_
111: #define ___int_ptrdiff_t_h
112: #define _GCC_PTRDIFF_T
113: #ifndef __PTRDIFF_TYPE__
114: #define __PTRDIFF_TYPE__ long int
115: #endif
116: typedef __PTRDIFF_TYPE__ ptrdiff_t;
117: #endif /* _GCC_PTRDIFF_T */
118: #endif /* ___int_ptrdiff_t_h */
119: #endif /* _BSD_PTRDIFF_T_ */
120: #endif /* _PTRDIFF_T_ */
121: #endif /* __PTRDIFF_T */
122: #endif /* _T_PTRDIFF */
123: #endif /* _T_PTRDIFF_ */
124: #endif /* _PTRDIFF_T */
125:
126: /* If this symbol has done its job, get rid of it. */
127: #undef __need_ptrdiff_t
128:
129: #endif /* _STDDEF_H or __need_ptrdiff_t. */
130:
131: /* Unsigned type of `sizeof' something. */
132:
133: /* Define this type if we are doing the whole job,
134: or if we want this type in particular. */
135: #if defined (_STDDEF_H) || defined (__need_size_t)
136: #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */
137: #ifndef _SYS_SIZE_T_H
138: #ifndef _T_SIZE_
139: #ifndef _T_SIZE
140: #ifndef __SIZE_T
141: #ifndef _SIZE_T_
142: #ifndef _BSD_SIZE_T_
143: #ifndef _SIZE_T_DEFINED_
1.1.1.2 ! root 144: #ifndef _SIZE_T_DEFINED
1.1 root 145: #ifndef ___int_size_t_h
146: #ifndef _GCC_SIZE_T
147: #ifndef _SIZET_
148: #ifndef __size_t
149: #define _SIZE_T
150: #define _SYS_SIZE_T_H
151: #define _T_SIZE_
152: #define _T_SIZE
153: #define __SIZE_T
154: #define _SIZE_T_
155: #define _BSD_SIZE_T_
156: #define _SIZE_T_DEFINED_
1.1.1.2 ! root 157: #define _SIZE_T_DEFINED
1.1 root 158: #define ___int_size_t_h
159: #define _GCC_SIZE_T
160: #define _SIZET_
161: #define __size_t
162: #ifndef __SIZE_TYPE__
163: #define __SIZE_TYPE__ long unsigned int
164: #endif
165: #if !(defined (__GNUG__) && defined (size_t))
166: typedef __SIZE_TYPE__ size_t;
167: #endif /* !(defined (__GNUG__) && defined (size_t)) */
168: #endif /* __size_t */
169: #endif /* _SIZET_ */
170: #endif /* _GCC_SIZE_T */
171: #endif /* ___int_size_t_h */
1.1.1.2 ! root 172: #endif /* _SIZE_T_DEFINED */
1.1 root 173: #endif /* _SIZE_T_DEFINED_ */
174: #endif /* _BSD_SIZE_T_ */
175: #endif /* _SIZE_T_ */
176: #endif /* __SIZE_T */
177: #endif /* _T_SIZE */
178: #endif /* _T_SIZE_ */
179: #endif /* _SYS_SIZE_T_H */
180: #endif /* _SIZE_T */
181: #undef __need_size_t
182: #endif /* _STDDEF_H or __need_size_t. */
183:
184:
185: /* Wide character type.
186: Locale-writers should change this as necessary to
187: be big enough to hold unique values not between 0 and 127,
188: and not (wchar_t) -1, for each defined multibyte character. */
189:
190: /* Define this type if we are doing the whole job,
191: or if we want this type in particular. */
192: #if defined (_STDDEF_H) || defined (__need_wchar_t)
193: #ifndef _WCHAR_T
194: #ifndef _T_WCHAR_
195: #ifndef _T_WCHAR
196: #ifndef __WCHAR_T
197: #ifndef _WCHAR_T_
198: #ifndef _BSD_WCHAR_T_
199: #ifndef _WCHAR_T_DEFINED_
1.1.1.2 ! root 200: #ifndef _WCHAR_T_DEFINED
1.1 root 201: #ifndef _WCHAR_T_H
202: #ifndef ___int_wchar_t_h
203: #ifndef __INT_WCHAR_T_H
204: #ifndef _GCC_WCHAR_T
205: #define _WCHAR_T
206: #define _T_WCHAR_
207: #define _T_WCHAR
208: #define __WCHAR_T
209: #define _WCHAR_T_
210: #define _BSD_WCHAR_T_
211: #define _WCHAR_T_DEFINED_
1.1.1.2 ! root 212: #define _WCHAR_T_DEFINED
1.1 root 213: #define _WCHAR_T_H
214: #define ___int_wchar_t_h
215: #define __INT_WCHAR_T_H
216: #define _GCC_WCHAR_T
217:
218: /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
219: instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
220: symbols in the _FOO_T_ family, stays defined even after its
221: corresponding type is defined). If we define wchar_t, then we
222: must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
223: we undef _WCHAR_T_, then we must also define rune_t, since
224: headers like runetype.h assume that if machine/ansi.h is included,
225: and _BSD_WCHAR_T_ is not defined, then rune_t is available.
226: machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
227: the same type." */
228: #ifdef _BSD_WCHAR_T_
229: #undef _BSD_WCHAR_T_
230: #ifdef _BSD_RUNE_T_
231: #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
232: typedef _BSD_RUNE_T_ rune_t;
233: #endif
234: #endif
235: #endif
236:
237: #ifndef __WCHAR_TYPE__
238: #define __WCHAR_TYPE__ int
239: #endif
1.1.1.2 ! root 240: #ifndef __cplusplus
1.1 root 241: typedef __WCHAR_TYPE__ wchar_t;
242: #endif
243: #endif
244: #endif
245: #endif
246: #endif
247: #endif
248: #endif
249: #endif
250: #endif
251: #endif
252: #endif
1.1.1.2 ! root 253: #endif
! 254: #endif
1.1 root 255: #undef __need_wchar_t
256: #endif /* _STDDEF_H or __need_wchar_t. */
257:
258: /* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
259: are already defined. */
260: #ifdef _ANSI_H_
261: /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_
1.1.1.2 ! root 262: are probably typos and should be removed before 2.8 is released. */
1.1 root 263: #ifdef _GCC_PTRDIFF_T_
264: #undef _PTRDIFF_T_
265: #undef _BSD_PTRDIFF_T_
266: #endif
267: #ifdef _GCC_SIZE_T_
268: #undef _SIZE_T_
269: #undef _BSD_SIZE_T_
270: #endif
271: #ifdef _GCC_WCHAR_T_
272: #undef _WCHAR_T_
273: #undef _BSD_WCHAR_T_
274: #endif
275: /* The following ones are the real ones. */
276: #ifdef _GCC_PTRDIFF_T
277: #undef _PTRDIFF_T_
1.1.1.2 ! root 278: #undef _BSD_PTRDIFF_T_
1.1 root 279: #endif
280: #ifdef _GCC_SIZE_T
281: #undef _SIZE_T_
1.1.1.2 ! root 282: #undef _BSD_SIZE_T_
1.1 root 283: #endif
284: #ifdef _GCC_WCHAR_T
285: #undef _WCHAR_T_
1.1.1.2 ! root 286: #undef _BSD_WCHAR_T_
1.1 root 287: #endif
288: #endif /* _ANSI_H_ */
289:
290: #endif /* __sys_stdtypes_h */
291:
292: /* A null pointer constant. */
293:
294: #if defined (_STDDEF_H) || defined (__need_NULL)
295: #undef NULL /* in case <stdio.h> has defined it. */
296: #define NULL ((void *)0)
297: #endif /* NULL not defined and <stddef.h> or need NULL. */
298: #undef __need_NULL
299:
300: #ifdef _STDDEF_H
301:
302: /* Offset of member MEMBER in a struct of type TYPE. */
303:
304: #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
305:
306: #endif /* _STDDEF_H was defined this time */
307:
308: #endif /* __STDDEF_H__ was not defined before */
309: #endif /* _ANSI_STDDEF_H was not defined before */
310: #endif /* _STDDEF_H_ was not defined before */
311: #endif /* _STDDEF_H was not defined before */
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