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e4b17023 JM |
1 | /* Copyright (C) 1989, 1997, 1998, 1999, 2000, 2002, 2004, 2009, 2011 |
2 | Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | Under Section 7 of GPL version 3, you are granted additional | |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
24 | ||
25 | /* | |
26 | * ISO C Standard: 7.17 Common definitions <stddef.h> | |
27 | */ | |
28 | #if (!defined(_STDDEF_H) && !defined(_STDDEF_H_) && !defined(_ANSI_STDDEF_H) \ | |
29 | && !defined(__STDDEF_H__)) \ | |
30 | || defined(__need_wchar_t) || defined(__need_size_t) \ | |
31 | || defined(__need_ptrdiff_t) || defined(__need_NULL) \ | |
32 | || defined(__need_wint_t) | |
33 | ||
34 | /* Any one of these symbols __need_* means that GNU libc | |
35 | wants us just to define one data type. So don't define | |
36 | the symbols that indicate this file's entire job has been done. */ | |
37 | #if (!defined(__need_wchar_t) && !defined(__need_size_t) \ | |
38 | && !defined(__need_ptrdiff_t) && !defined(__need_NULL) \ | |
39 | && !defined(__need_wint_t)) | |
40 | #define _STDDEF_H | |
41 | #define _STDDEF_H_ | |
42 | /* snaroff@next.com says the NeXT needs this. */ | |
43 | #define _ANSI_STDDEF_H | |
44 | /* Irix 5.1 needs this. */ | |
45 | #define __STDDEF_H__ | |
46 | #endif | |
47 | ||
48 | #ifndef __sys_stdtypes_h | |
49 | /* This avoids lossage on SunOS but only if stdtypes.h comes first. | |
50 | There's no way to win with the other order! Sun lossage. */ | |
51 | ||
52 | /* On 4.3bsd-net2, make sure ansi.h is included, so we have | |
53 | one less case to deal with in the following. */ | |
54 | #if defined (__BSD_NET2__) || defined (____386BSD____) || (defined (__FreeBSD__) && (__FreeBSD__ < 5)) || defined(__NetBSD__) | |
55 | #include <machine/ansi.h> | |
fdc4107c JM |
56 | #if !defined(_MACHINE_ANSI_H_) |
57 | #if defined(_I386_ANSI_H_) || defined(_X86_64_ANSI_H_) | |
58 | #define _MACHINE_ANSI_H_ | |
59 | #endif | |
60 | #endif | |
e4b17023 JM |
61 | #endif |
62 | /* On FreeBSD 5, machine/ansi.h does not exist anymore... */ | |
63 | #if defined (__FreeBSD__) && (__FreeBSD__ >= 5) | |
64 | #include <sys/_types.h> | |
65 | #endif | |
66 | ||
fdc4107c JM |
67 | #if defined(__DragonFly__) |
68 | #include <sys/types.h> | |
69 | #endif | |
70 | ||
e4b17023 JM |
71 | /* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are |
72 | defined if the corresponding type is *not* defined. | |
73 | FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_. | |
74 | NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_ */ | |
75 | #if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) | |
76 | #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_) | |
77 | #define _SIZE_T | |
78 | #endif | |
79 | #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_) | |
80 | #define _PTRDIFF_T | |
81 | #endif | |
82 | /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ | |
83 | instead of _WCHAR_T_. */ | |
84 | #if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_) | |
85 | #ifndef _BSD_WCHAR_T_ | |
86 | #define _WCHAR_T | |
87 | #endif | |
88 | #endif | |
89 | /* Undef _FOO_T_ if we are supposed to define foo_t. */ | |
90 | #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_) | |
91 | #undef _PTRDIFF_T_ | |
92 | #undef _BSD_PTRDIFF_T_ | |
93 | #endif | |
94 | #if defined (__need_size_t) || defined (_STDDEF_H_) | |
95 | #undef _SIZE_T_ | |
96 | #undef _BSD_SIZE_T_ | |
97 | #endif | |
98 | #if defined (__need_wchar_t) || defined (_STDDEF_H_) | |
99 | #undef _WCHAR_T_ | |
100 | #undef _BSD_WCHAR_T_ | |
101 | #endif | |
102 | #endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) */ | |
103 | ||
104 | /* Sequent's header files use _PTRDIFF_T_ in some conflicting way. | |
105 | Just ignore it. */ | |
106 | #if defined (__sequent__) && defined (_PTRDIFF_T_) | |
107 | #undef _PTRDIFF_T_ | |
108 | #endif | |
109 | ||
110 | /* On VxWorks, <type/vxTypesBase.h> may have defined macros like | |
111 | _TYPE_size_t which will typedef size_t. fixincludes patched the | |
112 | vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is | |
113 | not defined, and so that defining this macro defines _GCC_SIZE_T. | |
114 | If we find that the macros are still defined at this point, we must | |
115 | invoke them so that the type is defined as expected. */ | |
116 | #if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_)) | |
117 | _TYPE_ptrdiff_t; | |
118 | #undef _TYPE_ptrdiff_t | |
119 | #endif | |
120 | #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_)) | |
121 | _TYPE_size_t; | |
122 | #undef _TYPE_size_t | |
123 | #endif | |
124 | #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_)) | |
125 | _TYPE_wchar_t; | |
126 | #undef _TYPE_wchar_t | |
127 | #endif | |
128 | ||
129 | /* In case nobody has defined these types, but we aren't running under | |
130 | GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and | |
131 | __WCHAR_TYPE__ have reasonable values. This can happen if the | |
132 | parts of GCC is compiled by an older compiler, that actually | |
133 | include gstddef.h, such as collect2. */ | |
134 | ||
135 | /* Signed type of difference of two pointers. */ | |
136 | ||
137 | /* Define this type if we are doing the whole job, | |
138 | or if we want this type in particular. */ | |
139 | #if defined (_STDDEF_H) || defined (__need_ptrdiff_t) | |
140 | #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */ | |
141 | #ifndef _T_PTRDIFF_ | |
142 | #ifndef _T_PTRDIFF | |
143 | #ifndef __PTRDIFF_T | |
144 | #ifndef _PTRDIFF_T_ | |
145 | #ifndef _BSD_PTRDIFF_T_ | |
146 | #ifndef ___int_ptrdiff_t_h | |
147 | #ifndef _GCC_PTRDIFF_T | |
fdc4107c | 148 | #ifndef _PTRDIFF_T_DECLARED /* DragonFly */ |
e4b17023 JM |
149 | #define _PTRDIFF_T |
150 | #define _T_PTRDIFF_ | |
151 | #define _T_PTRDIFF | |
152 | #define __PTRDIFF_T | |
153 | #define _PTRDIFF_T_ | |
154 | #define _BSD_PTRDIFF_T_ | |
155 | #define ___int_ptrdiff_t_h | |
156 | #define _GCC_PTRDIFF_T | |
fdc4107c | 157 | #define _PTRDIFF_T_DECLARED |
e4b17023 JM |
158 | #ifndef __PTRDIFF_TYPE__ |
159 | #define __PTRDIFF_TYPE__ long int | |
160 | #endif | |
161 | typedef __PTRDIFF_TYPE__ ptrdiff_t; | |
fdc4107c | 162 | #endif /* _PTRDIFF_T_DECLARED */ |
e4b17023 JM |
163 | #endif /* _GCC_PTRDIFF_T */ |
164 | #endif /* ___int_ptrdiff_t_h */ | |
165 | #endif /* _BSD_PTRDIFF_T_ */ | |
166 | #endif /* _PTRDIFF_T_ */ | |
167 | #endif /* __PTRDIFF_T */ | |
168 | #endif /* _T_PTRDIFF */ | |
169 | #endif /* _T_PTRDIFF_ */ | |
170 | #endif /* _PTRDIFF_T */ | |
171 | ||
172 | /* If this symbol has done its job, get rid of it. */ | |
173 | #undef __need_ptrdiff_t | |
174 | ||
175 | #endif /* _STDDEF_H or __need_ptrdiff_t. */ | |
176 | ||
177 | /* Unsigned type of `sizeof' something. */ | |
178 | ||
179 | /* Define this type if we are doing the whole job, | |
180 | or if we want this type in particular. */ | |
181 | #if defined (_STDDEF_H) || defined (__need_size_t) | |
182 | #ifndef __size_t__ /* BeOS */ | |
183 | #ifndef __SIZE_T__ /* Cray Unicos/Mk */ | |
184 | #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */ | |
185 | #ifndef _SYS_SIZE_T_H | |
186 | #ifndef _T_SIZE_ | |
187 | #ifndef _T_SIZE | |
188 | #ifndef __SIZE_T | |
189 | #ifndef _SIZE_T_ | |
190 | #ifndef _BSD_SIZE_T_ | |
191 | #ifndef _SIZE_T_DEFINED_ | |
192 | #ifndef _SIZE_T_DEFINED | |
193 | #ifndef _BSD_SIZE_T_DEFINED_ /* Darwin */ | |
194 | #ifndef _SIZE_T_DECLARED /* FreeBSD 5 */ | |
195 | #ifndef ___int_size_t_h | |
196 | #ifndef _GCC_SIZE_T | |
197 | #ifndef _SIZET_ | |
198 | #ifndef __size_t | |
199 | #define __size_t__ /* BeOS */ | |
200 | #define __SIZE_T__ /* Cray Unicos/Mk */ | |
201 | #define _SIZE_T | |
202 | #define _SYS_SIZE_T_H | |
203 | #define _T_SIZE_ | |
204 | #define _T_SIZE | |
205 | #define __SIZE_T | |
206 | #define _SIZE_T_ | |
207 | #define _BSD_SIZE_T_ | |
208 | #define _SIZE_T_DEFINED_ | |
209 | #define _SIZE_T_DEFINED | |
210 | #define _BSD_SIZE_T_DEFINED_ /* Darwin */ | |
211 | #define _SIZE_T_DECLARED /* FreeBSD 5 */ | |
212 | #define ___int_size_t_h | |
213 | #define _GCC_SIZE_T | |
214 | #define _SIZET_ | |
215 | #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \ | |
fdc4107c | 216 | || defined(__DragonFly__) \ |
e4b17023 JM |
217 | || defined(__FreeBSD_kernel__) |
218 | /* __size_t is a typedef on FreeBSD 5, must not trash it. */ | |
219 | #else | |
220 | #define __size_t | |
221 | #endif | |
222 | #ifndef __SIZE_TYPE__ | |
223 | #define __SIZE_TYPE__ long unsigned int | |
224 | #endif | |
225 | #if !(defined (__GNUG__) && defined (size_t)) | |
226 | typedef __SIZE_TYPE__ size_t; | |
227 | #ifdef __BEOS__ | |
228 | typedef long ssize_t; | |
229 | #endif /* __BEOS__ */ | |
230 | #endif /* !(defined (__GNUG__) && defined (size_t)) */ | |
231 | #endif /* __size_t */ | |
232 | #endif /* _SIZET_ */ | |
233 | #endif /* _GCC_SIZE_T */ | |
234 | #endif /* ___int_size_t_h */ | |
235 | #endif /* _SIZE_T_DECLARED */ | |
236 | #endif /* _BSD_SIZE_T_DEFINED_ */ | |
237 | #endif /* _SIZE_T_DEFINED */ | |
238 | #endif /* _SIZE_T_DEFINED_ */ | |
239 | #endif /* _BSD_SIZE_T_ */ | |
240 | #endif /* _SIZE_T_ */ | |
241 | #endif /* __SIZE_T */ | |
242 | #endif /* _T_SIZE */ | |
243 | #endif /* _T_SIZE_ */ | |
244 | #endif /* _SYS_SIZE_T_H */ | |
245 | #endif /* _SIZE_T */ | |
246 | #endif /* __SIZE_T__ */ | |
247 | #endif /* __size_t__ */ | |
248 | #undef __need_size_t | |
249 | #endif /* _STDDEF_H or __need_size_t. */ | |
250 | ||
251 | ||
252 | /* Wide character type. | |
253 | Locale-writers should change this as necessary to | |
254 | be big enough to hold unique values not between 0 and 127, | |
255 | and not (wchar_t) -1, for each defined multibyte character. */ | |
256 | ||
257 | /* Define this type if we are doing the whole job, | |
258 | or if we want this type in particular. */ | |
259 | #if defined (_STDDEF_H) || defined (__need_wchar_t) | |
260 | #ifndef __wchar_t__ /* BeOS */ | |
261 | #ifndef __WCHAR_T__ /* Cray Unicos/Mk */ | |
262 | #ifndef _WCHAR_T | |
263 | #ifndef _T_WCHAR_ | |
264 | #ifndef _T_WCHAR | |
265 | #ifndef __WCHAR_T | |
266 | #ifndef _WCHAR_T_ | |
267 | #ifndef _BSD_WCHAR_T_ | |
268 | #ifndef _BSD_WCHAR_T_DEFINED_ /* Darwin */ | |
269 | #ifndef _BSD_RUNE_T_DEFINED_ /* Darwin */ | |
270 | #ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */ | |
271 | #ifndef _WCHAR_T_DEFINED_ | |
272 | #ifndef _WCHAR_T_DEFINED | |
273 | #ifndef _WCHAR_T_H | |
274 | #ifndef ___int_wchar_t_h | |
275 | #ifndef __INT_WCHAR_T_H | |
276 | #ifndef _GCC_WCHAR_T | |
277 | #define __wchar_t__ /* BeOS */ | |
278 | #define __WCHAR_T__ /* Cray Unicos/Mk */ | |
279 | #define _WCHAR_T | |
280 | #define _T_WCHAR_ | |
281 | #define _T_WCHAR | |
282 | #define __WCHAR_T | |
283 | #define _WCHAR_T_ | |
284 | #define _BSD_WCHAR_T_ | |
285 | #define _WCHAR_T_DEFINED_ | |
286 | #define _WCHAR_T_DEFINED | |
287 | #define _WCHAR_T_H | |
288 | #define ___int_wchar_t_h | |
289 | #define __INT_WCHAR_T_H | |
290 | #define _GCC_WCHAR_T | |
291 | #define _WCHAR_T_DECLARED | |
292 | ||
293 | /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ | |
294 | instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other | |
295 | symbols in the _FOO_T_ family, stays defined even after its | |
296 | corresponding type is defined). If we define wchar_t, then we | |
297 | must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if | |
298 | we undef _WCHAR_T_, then we must also define rune_t, since | |
299 | headers like runetype.h assume that if machine/ansi.h is included, | |
300 | and _BSD_WCHAR_T_ is not defined, then rune_t is available. | |
301 | machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of | |
302 | the same type." */ | |
303 | #ifdef _BSD_WCHAR_T_ | |
304 | #undef _BSD_WCHAR_T_ | |
305 | #ifdef _BSD_RUNE_T_ | |
306 | #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) | |
307 | typedef _BSD_RUNE_T_ rune_t; | |
308 | #define _BSD_WCHAR_T_DEFINED_ | |
309 | #define _BSD_RUNE_T_DEFINED_ /* Darwin */ | |
310 | #if defined (__FreeBSD__) && (__FreeBSD__ < 5) | |
311 | /* Why is this file so hard to maintain properly? In contrast to | |
312 | the comment above regarding BSD/386 1.1, on FreeBSD for as long | |
313 | as the symbol has existed, _BSD_RUNE_T_ must not stay defined or | |
314 | redundant typedefs will occur when stdlib.h is included after this file. */ | |
315 | #undef _BSD_RUNE_T_ | |
316 | #endif | |
317 | #endif | |
318 | #endif | |
319 | #endif | |
320 | /* FreeBSD 5 can't be handled well using "traditional" logic above | |
321 | since it no longer defines _BSD_RUNE_T_ yet still desires to export | |
322 | rune_t in some cases... */ | |
fdc4107c | 323 | #if defined (__DragonFly__) || (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) |
e4b17023 JM |
324 | #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) |
325 | #if __BSD_VISIBLE | |
326 | #ifndef _RUNE_T_DECLARED | |
327 | typedef __rune_t rune_t; | |
328 | #define _RUNE_T_DECLARED | |
329 | #endif | |
330 | #endif | |
331 | #endif | |
332 | #endif | |
333 | ||
334 | #ifndef __WCHAR_TYPE__ | |
335 | #define __WCHAR_TYPE__ int | |
336 | #endif | |
337 | #ifndef __cplusplus | |
338 | typedef __WCHAR_TYPE__ wchar_t; | |
339 | #endif | |
340 | #endif | |
341 | #endif | |
342 | #endif | |
343 | #endif | |
344 | #endif | |
345 | #endif | |
346 | #endif /* _WCHAR_T_DECLARED */ | |
347 | #endif /* _BSD_RUNE_T_DEFINED_ */ | |
348 | #endif | |
349 | #endif | |
350 | #endif | |
351 | #endif | |
352 | #endif | |
353 | #endif | |
354 | #endif | |
355 | #endif /* __WCHAR_T__ */ | |
356 | #endif /* __wchar_t__ */ | |
357 | #undef __need_wchar_t | |
358 | #endif /* _STDDEF_H or __need_wchar_t. */ | |
359 | ||
360 | #if defined (__need_wint_t) | |
361 | #ifndef _WINT_T | |
362 | #define _WINT_T | |
363 | ||
364 | #ifndef __WINT_TYPE__ | |
365 | #define __WINT_TYPE__ unsigned int | |
366 | #endif | |
367 | typedef __WINT_TYPE__ wint_t; | |
368 | #endif | |
369 | #undef __need_wint_t | |
370 | #endif | |
371 | ||
372 | /* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc. | |
373 | are already defined. */ | |
374 | /* BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here. */ | |
375 | /* NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here. */ | |
376 | #if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) | |
377 | /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_ | |
378 | are probably typos and should be removed before 2.8 is released. */ | |
379 | #ifdef _GCC_PTRDIFF_T_ | |
380 | #undef _PTRDIFF_T_ | |
381 | #undef _BSD_PTRDIFF_T_ | |
382 | #endif | |
383 | #ifdef _GCC_SIZE_T_ | |
384 | #undef _SIZE_T_ | |
385 | #undef _BSD_SIZE_T_ | |
386 | #endif | |
387 | #ifdef _GCC_WCHAR_T_ | |
388 | #undef _WCHAR_T_ | |
389 | #undef _BSD_WCHAR_T_ | |
390 | #endif | |
391 | /* The following ones are the real ones. */ | |
392 | #ifdef _GCC_PTRDIFF_T | |
393 | #undef _PTRDIFF_T_ | |
394 | #undef _BSD_PTRDIFF_T_ | |
395 | #endif | |
396 | #ifdef _GCC_SIZE_T | |
397 | #undef _SIZE_T_ | |
398 | #undef _BSD_SIZE_T_ | |
399 | #endif | |
400 | #ifdef _GCC_WCHAR_T | |
401 | #undef _WCHAR_T_ | |
402 | #undef _BSD_WCHAR_T_ | |
403 | #endif | |
404 | #endif /* _ANSI_H_ || _MACHINE_ANSI_H_ || _X86_64_ANSI_H_ || _I386_ANSI_H_ */ | |
405 | ||
406 | #endif /* __sys_stdtypes_h */ | |
407 | ||
408 | /* A null pointer constant. */ | |
409 | ||
410 | #if defined (_STDDEF_H) || defined (__need_NULL) | |
411 | #undef NULL /* in case <stdio.h> has defined it. */ | |
412 | #ifdef __GNUG__ | |
413 | #define NULL __null | |
414 | #else /* G++ */ | |
415 | #ifndef __cplusplus | |
416 | #define NULL ((void *)0) | |
417 | #else /* C++ */ | |
418 | #define NULL 0 | |
419 | #endif /* C++ */ | |
420 | #endif /* G++ */ | |
421 | #endif /* NULL not defined and <stddef.h> or need NULL. */ | |
422 | #undef __need_NULL | |
423 | ||
424 | #ifdef _STDDEF_H | |
425 | ||
426 | /* Offset of member MEMBER in a struct of type TYPE. */ | |
427 | #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) | |
428 | ||
429 | #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \ | |
430 | || (defined(__cplusplus) && __cplusplus >= 201103L) | |
431 | #ifndef _GCC_MAX_ALIGN_T | |
432 | #define _GCC_MAX_ALIGN_T | |
433 | /* Type whose alignment is supported in every context and is at least | |
434 | as great as that of any standard type not using alignment | |
435 | specifiers. */ | |
436 | typedef struct { | |
437 | long long __max_align_ll __attribute__((__aligned__(__alignof__(long long)))); | |
438 | long double __max_align_ld __attribute__((__aligned__(__alignof__(long double)))); | |
439 | } max_align_t; | |
440 | #endif | |
441 | #endif /* C11 or C++11. */ | |
442 | ||
443 | #endif /* _STDDEF_H was defined this time */ | |
444 | ||
445 | #endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__ | |
446 | || __need_XXX was not defined before */ |