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 && !defined(__need_wint_t))
14 /* snaroff@next.com says the NeXT needs this. */
15 #define _ANSI_STDDEF_H
16 /* Irix 5.1 needs this. */
20 #ifndef __sys_stdtypes_h
21 /* This avoids lossage on SunOS but only if stdtypes.h comes first.
22 There's no way to win with the other order! Sun lossage. */
24 /* On 4.3bsd-net2, make sure ansi.h is included, so we have
25 one less case to deal with in the following. */
26 #if defined (__BSD_NET2__) || defined (____386BSD____) || defined (__FreeBSD__) || defined(__NetBSD__)
27 #include <machine/ansi.h>
30 /* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
31 defined if the corresponding type is *not* defined.
32 FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_ */
33 #if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_)
34 #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_)
37 #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_)
40 /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
41 instead of _WCHAR_T_. */
42 #if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_)
47 /* Undef _FOO_T_ if we are supposed to define foo_t. */
48 #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_)
50 #undef _BSD_PTRDIFF_T_
52 #if defined (__need_size_t) || defined (_STDDEF_H_)
56 #if defined (__need_wchar_t) || defined (_STDDEF_H_)
60 #endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) */
62 /* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
64 #if defined (__sequent__) && defined (_PTRDIFF_T_)
68 /* On VxWorks, <type/vxTypesBase.h> may have defined macros like
69 _TYPE_size_t which will typedef size_t. fixincludes patched the
70 vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
71 not defined, and so that defining this macro defines _GCC_SIZE_T.
72 If we find that the macros are still defined at this point, we must
73 invoke them so that the type is defined as expected. */
74 #if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_))
76 #undef _TYPE_ptrdiff_t
78 #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_))
82 #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_))
87 /* In case nobody has defined these types, but we aren't running under
88 GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE__TYPE__, and
89 __WCHAR_TYPE__ have reasonable values. This can happen if the
90 parts of GCC is compiled by an older compiler, that actually
91 include gstddef.h, such as collect2. */
93 /* Signed type of difference of two pointers. */
95 /* Define this type if we are doing the whole job,
96 or if we want this type in particular. */
97 #if defined (_STDDEF_H) || defined (__need_ptrdiff_t)
98 #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */
103 #ifndef _BSD_PTRDIFF_T_
104 #ifndef ___int_ptrdiff_t_h
105 #ifndef _GCC_PTRDIFF_T
111 #define _BSD_PTRDIFF_T_
112 #define ___int_ptrdiff_t_h
113 #define _GCC_PTRDIFF_T
114 #ifndef __PTRDIFF_TYPE__
115 #define __PTRDIFF_TYPE__ long int
117 typedef __PTRDIFF_TYPE__ ptrdiff_t;
118 #endif /* _GCC_PTRDIFF_T */
119 #endif /* ___int_ptrdiff_t_h */
120 #endif /* _BSD_PTRDIFF_T_ */
121 #endif /* _PTRDIFF_T_ */
122 #endif /* __PTRDIFF_T */
123 #endif /* _T_PTRDIFF */
124 #endif /* _T_PTRDIFF_ */
125 #endif /* _PTRDIFF_T */
127 /* If this symbol has done its job, get rid of it. */
128 #undef __need_ptrdiff_t
130 #endif /* _STDDEF_H or __need_ptrdiff_t. */
132 /* Unsigned type of `sizeof' something. */
134 /* Define this type if we are doing the whole job,
135 or if we want this type in particular. */
136 #if defined (_STDDEF_H) || defined (__need_size_t)
137 #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */
138 #ifndef _SYS_SIZE_T_H
144 #ifndef _SIZE_T_DEFINED_
145 #ifndef _SIZE_T_DEFINED
146 #ifndef ___int_size_t_h
151 #define _SYS_SIZE_T_H
157 #define _SIZE_T_DEFINED_
158 #define _SIZE_T_DEFINED
159 #define ___int_size_t_h
163 #ifndef __SIZE_TYPE__
164 #define __SIZE_TYPE__ long unsigned int
166 #if !(defined (__GNUG__) && defined (size_t))
167 typedef __SIZE_TYPE__ size_t;
168 #endif /* !(defined (__GNUG__) && defined (size_t)) */
169 #endif /* __size_t */
171 #endif /* _GCC_SIZE_T */
172 #endif /* ___int_size_t_h */
173 #endif /* _SIZE_T_DEFINED */
174 #endif /* _SIZE_T_DEFINED_ */
175 #endif /* _BSD_SIZE_T_ */
176 #endif /* _SIZE_T_ */
177 #endif /* __SIZE_T */
179 #endif /* _T_SIZE_ */
180 #endif /* _SYS_SIZE_T_H */
183 #endif /* _STDDEF_H or __need_size_t. */
186 /* Wide character type.
187 Locale-writers should change this as necessary to
188 be big enough to hold unique values not between 0 and 127,
189 and not (wchar_t) -1, for each defined multibyte character. */
191 /* Define this type if we are doing the whole job,
192 or if we want this type in particular. */
193 #if defined (_STDDEF_H) || defined (__need_wchar_t)
199 #ifndef _BSD_WCHAR_T_
200 #ifndef _WCHAR_T_DEFINED_
201 #ifndef _WCHAR_T_DEFINED
203 #ifndef ___int_wchar_t_h
204 #ifndef __INT_WCHAR_T_H
211 #define _BSD_WCHAR_T_
212 #define _WCHAR_T_DEFINED_
213 #define _WCHAR_T_DEFINED
215 #define ___int_wchar_t_h
216 #define __INT_WCHAR_T_H
219 /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
220 instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
221 symbols in the _FOO_T_ family, stays defined even after its
222 corresponding type is defined). If we define wchar_t, then we
223 must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
224 we undef _WCHAR_T_, then we must also define rune_t, since
225 headers like runetype.h assume that if machine/ansi.h is included,
226 and _BSD_WCHAR_T_ is not defined, then rune_t is available.
227 machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
232 #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
233 typedef _BSD_RUNE_T_ rune_t;
238 #ifndef __WCHAR_TYPE__
239 #define __WCHAR_TYPE__ int
242 typedef __WCHAR_TYPE__ wchar_t;
256 #undef __need_wchar_t
257 #endif /* _STDDEF_H or __need_wchar_t. */
259 #if defined (_STDDEF_H) || defined (__need_wint_t)
263 #ifndef __WINT_TYPE__
264 #define __WINT_TYPE__ unsigned int
266 typedef __WINT_TYPE__ wint_t;
270 /* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
271 are already defined. */
273 /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_
274 are probably typos and should be removed before 2.8 is released. */
275 #ifdef _GCC_PTRDIFF_T_
277 #undef _BSD_PTRDIFF_T_
287 /* The following ones are the real ones. */
288 #ifdef _GCC_PTRDIFF_T
290 #undef _BSD_PTRDIFF_T_
300 #endif /* _ANSI_H_ */
302 #endif /* __sys_stdtypes_h */
304 /* A null pointer constant. */
306 #if defined (_STDDEF_H) || defined (__need_NULL)
307 #undef NULL /* in case <stdio.h> has defined it. */
308 #define NULL ((void *)0)
309 #endif /* NULL not defined and <stddef.h> or need NULL. */
314 /* Offset of member MEMBER in a struct of type TYPE. */
316 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
318 #endif /* _STDDEF_H was defined this time */
320 #endif /* __STDDEF_H__ was not defined before */
321 #endif /* _ANSI_STDDEF_H was not defined before */
322 #endif /* _STDDEF_H_ was not defined before */
323 #endif /* _STDDEF_H was not defined before */