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))
13 /* snaroff@next.com says the NeXT needs this. */
14 #define _ANSI_STDDEF_H
15 /* Irix 5.1 needs this. */
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. */
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>
29 /* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
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_)
33 #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_)
36 #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_)
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_)
46 /* Undef _FOO_T_ if we are supposed to define foo_t. */
47 #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_)
49 #undef _BSD_PTRDIFF_T_
51 #if defined (__need_size_t) || defined (_STDDEF_H_)
55 #if defined (__need_wchar_t) || defined (_STDDEF_H_)
59 #endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) */
61 /* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
63 #if defined (__sequent__) && defined (_PTRDIFF_T_)
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_))
75 #undef _TYPE_ptrdiff_t
77 #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_))
81 #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_))
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. */
92 /* Signed type of difference of two pointers. */
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. */
102 #ifndef _BSD_PTRDIFF_T_
103 #ifndef ___int_ptrdiff_t_h
104 #ifndef _GCC_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
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 */
126 /* If this symbol has done its job, get rid of it. */
127 #undef __need_ptrdiff_t
129 #endif /* _STDDEF_H or __need_ptrdiff_t. */
131 /* Unsigned type of `sizeof' something. */
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
143 #ifndef _SIZE_T_DEFINED_
144 #ifndef _SIZE_T_DEFINED
145 #ifndef ___int_size_t_h
150 #define _SYS_SIZE_T_H
156 #define _SIZE_T_DEFINED_
157 #define _SIZE_T_DEFINED
158 #define ___int_size_t_h
162 #ifndef __SIZE_TYPE__
163 #define __SIZE_TYPE__ long unsigned int
165 #if !(defined (__GNUG__) && defined (size_t))
166 typedef __SIZE_TYPE__ size_t;
167 #endif /* !(defined (__GNUG__) && defined (size_t)) */
168 #endif /* __size_t */
170 #endif /* _GCC_SIZE_T */
171 #endif /* ___int_size_t_h */
172 #endif /* _SIZE_T_DEFINED */
173 #endif /* _SIZE_T_DEFINED_ */
174 #endif /* _BSD_SIZE_T_ */
175 #endif /* _SIZE_T_ */
176 #endif /* __SIZE_T */
178 #endif /* _T_SIZE_ */
179 #endif /* _SYS_SIZE_T_H */
182 #endif /* _STDDEF_H or __need_size_t. */
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. */
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)
198 #ifndef _BSD_WCHAR_T_
199 #ifndef _WCHAR_T_DEFINED_
200 #ifndef _WCHAR_T_DEFINED
202 #ifndef ___int_wchar_t_h
203 #ifndef __INT_WCHAR_T_H
210 #define _BSD_WCHAR_T_
211 #define _WCHAR_T_DEFINED_
212 #define _WCHAR_T_DEFINED
214 #define ___int_wchar_t_h
215 #define __INT_WCHAR_T_H
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
231 #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
232 typedef _BSD_RUNE_T_ rune_t;
237 #ifndef __WCHAR_TYPE__
238 #define __WCHAR_TYPE__ int
241 typedef __WCHAR_TYPE__ wchar_t;
255 #undef __need_wchar_t
256 #endif /* _STDDEF_H or __need_wchar_t. */
258 /* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
259 are already defined. */
261 /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_
262 are probably typos and should be removed before 2.8 is released. */
263 #ifdef _GCC_PTRDIFF_T_
265 #undef _BSD_PTRDIFF_T_
275 /* The following ones are the real ones. */
276 #ifdef _GCC_PTRDIFF_T
278 #undef _BSD_PTRDIFF_T_
288 #endif /* _ANSI_H_ */
290 #endif /* __sys_stdtypes_h */
292 /* A null pointer constant. */
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. */
302 /* Offset of member MEMBER in a struct of type TYPE. */
304 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
306 #endif /* _STDDEF_H was defined this time */
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 */