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fbd26352 | 1 | /* Copyright (C) 1989-2019 Free Software Foundation, Inc. |
69fb1563 | 2 | |
bc53ba74 | 3 | This file is part of GCC. |
69fb1563 | 4 | |
bc53ba74 | 5 | GCC is free software; you can redistribute it and/or modify |
69fb1563 | 6 | it under the terms of the GNU General Public License as published by |
6bc9506f | 7 | the Free Software Foundation; either version 3, or (at your option) |
69fb1563 | 8 | any later version. |
9 | ||
bc53ba74 | 10 | GCC is distributed in the hope that it will be useful, |
69fb1563 | 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
6bc9506f | 15 | Under Section 7 of GPL version 3, you are granted additional |
16 | permissions described in the GCC Runtime Library Exception, version | |
17 | 3.1, as published by the Free Software Foundation. | |
69fb1563 | 18 | |
6bc9506f | 19 | You should have received a copy of the GNU General Public License and |
20 | a copy of the GCC Runtime Library Exception along with this program; | |
21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
22 | <http://www.gnu.org/licenses/>. */ | |
69fb1563 | 23 | |
24 | /* | |
25 | * ISO C Standard: 7.17 Common definitions <stddef.h> | |
26 | */ | |
9915044d | 27 | #if (!defined(_STDDEF_H) && !defined(_STDDEF_H_) && !defined(_ANSI_STDDEF_H) \ |
28 | && !defined(__STDDEF_H__)) \ | |
29 | || defined(__need_wchar_t) || defined(__need_size_t) \ | |
30 | || defined(__need_ptrdiff_t) || defined(__need_NULL) \ | |
31 | || defined(__need_wint_t) | |
69c30b10 | 32 | |
33 | /* Any one of these symbols __need_* means that GNU libc | |
34 | wants us just to define one data type. So don't define | |
35 | the symbols that indicate this file's entire job has been done. */ | |
36 | #if (!defined(__need_wchar_t) && !defined(__need_size_t) \ | |
23aff663 | 37 | && !defined(__need_ptrdiff_t) && !defined(__need_NULL) \ |
38 | && !defined(__need_wint_t)) | |
00cb7f36 | 39 | #define _STDDEF_H |
40 | #define _STDDEF_H_ | |
c04132ff | 41 | /* snaroff@next.com says the NeXT needs this. */ |
42 | #define _ANSI_STDDEF_H | |
69c30b10 | 43 | #endif |
00cb7f36 | 44 | |
087d2183 | 45 | #ifndef __sys_stdtypes_h |
46 | /* This avoids lossage on SunOS but only if stdtypes.h comes first. | |
47 | There's no way to win with the other order! Sun lossage. */ | |
48 | ||
c7af124d | 49 | #if defined(__NetBSD__) |
abbd44ff | 50 | #include <machine/ansi.h> |
c319aebb | 51 | #endif |
07d455ca | 52 | |
53 | #if defined (__FreeBSD__) | |
733997eb | 54 | #include <sys/_types.h> |
55 | #endif | |
c319aebb | 56 | |
c7af124d | 57 | #if defined(__NetBSD__) |
b862e373 | 58 | #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_) |
c319aebb | 59 | #define _SIZE_T |
60 | #endif | |
b862e373 | 61 | #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_) |
c319aebb | 62 | #define _PTRDIFF_T |
63 | #endif | |
b61fbd10 | 64 | /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ |
65 | instead of _WCHAR_T_. */ | |
b862e373 | 66 | #if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_) |
b61fbd10 | 67 | #ifndef _BSD_WCHAR_T_ |
c319aebb | 68 | #define _WCHAR_T |
69 | #endif | |
b61fbd10 | 70 | #endif |
d4a04e5d | 71 | /* Undef _FOO_T_ if we are supposed to define foo_t. */ |
47001a6d | 72 | #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_) |
c319aebb | 73 | #undef _PTRDIFF_T_ |
b862e373 | 74 | #undef _BSD_PTRDIFF_T_ |
d4a04e5d | 75 | #endif |
47001a6d | 76 | #if defined (__need_size_t) || defined (_STDDEF_H_) |
abbd44ff | 77 | #undef _SIZE_T_ |
b862e373 | 78 | #undef _BSD_SIZE_T_ |
d4a04e5d | 79 | #endif |
47001a6d | 80 | #if defined (__need_wchar_t) || defined (_STDDEF_H_) |
f100e763 | 81 | #undef _WCHAR_T_ |
b862e373 | 82 | #undef _BSD_WCHAR_T_ |
abbd44ff | 83 | #endif |
c7af124d | 84 | #endif /* defined(__NetBSD__) */ |
f100e763 | 85 | |
f57a5bf5 | 86 | /* Sequent's header files use _PTRDIFF_T_ in some conflicting way. |
87 | Just ignore it. */ | |
88 | #if defined (__sequent__) && defined (_PTRDIFF_T_) | |
89 | #undef _PTRDIFF_T_ | |
90 | #endif | |
91 | ||
ba9b6ab6 | 92 | /* On VxWorks, <type/vxTypesBase.h> may have defined macros like |
93 | _TYPE_size_t which will typedef size_t. fixincludes patched the | |
94 | vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is | |
95 | not defined, and so that defining this macro defines _GCC_SIZE_T. | |
96 | If we find that the macros are still defined at this point, we must | |
97 | invoke them so that the type is defined as expected. */ | |
36ea3d1d | 98 | #if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_)) |
ba9b6ab6 | 99 | _TYPE_ptrdiff_t; |
100 | #undef _TYPE_ptrdiff_t | |
101 | #endif | |
102 | #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_)) | |
103 | _TYPE_size_t; | |
104 | #undef _TYPE_size_t | |
105 | #endif | |
106 | #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_)) | |
107 | _TYPE_wchar_t; | |
108 | #undef _TYPE_wchar_t | |
109 | #endif | |
110 | ||
b29231ea | 111 | /* In case nobody has defined these types, but we aren't running under |
37c5f237 | 112 | GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and |
b29231ea | 113 | __WCHAR_TYPE__ have reasonable values. This can happen if the |
114 | parts of GCC is compiled by an older compiler, that actually | |
115 | include gstddef.h, such as collect2. */ | |
116 | ||
00cb7f36 | 117 | /* Signed type of difference of two pointers. */ |
118 | ||
0db7b740 | 119 | /* Define this type if we are doing the whole job, |
120 | or if we want this type in particular. */ | |
121 | #if defined (_STDDEF_H) || defined (__need_ptrdiff_t) | |
00cb7f36 | 122 | #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */ |
f1cea477 | 123 | #ifndef _T_PTRDIFF_ |
00cb7f36 | 124 | #ifndef _T_PTRDIFF |
125 | #ifndef __PTRDIFF_T | |
126 | #ifndef _PTRDIFF_T_ | |
b862e373 | 127 | #ifndef _BSD_PTRDIFF_T_ |
00cb7f36 | 128 | #ifndef ___int_ptrdiff_t_h |
f1cea477 | 129 | #ifndef _GCC_PTRDIFF_T |
463553db | 130 | #ifndef _PTRDIFF_T_DECLARED /* DragonFly */ |
00cb7f36 | 131 | #define _PTRDIFF_T |
f1cea477 | 132 | #define _T_PTRDIFF_ |
00cb7f36 | 133 | #define _T_PTRDIFF |
134 | #define __PTRDIFF_T | |
135 | #define _PTRDIFF_T_ | |
b862e373 | 136 | #define _BSD_PTRDIFF_T_ |
00cb7f36 | 137 | #define ___int_ptrdiff_t_h |
f1cea477 | 138 | #define _GCC_PTRDIFF_T |
463553db | 139 | #define _PTRDIFF_T_DECLARED |
b29231ea | 140 | #ifndef __PTRDIFF_TYPE__ |
141 | #define __PTRDIFF_TYPE__ long int | |
142 | #endif | |
00cb7f36 | 143 | typedef __PTRDIFF_TYPE__ ptrdiff_t; |
463553db | 144 | #endif /* _PTRDIFF_T_DECLARED */ |
f1cea477 | 145 | #endif /* _GCC_PTRDIFF_T */ |
00cb7f36 | 146 | #endif /* ___int_ptrdiff_t_h */ |
b862e373 | 147 | #endif /* _BSD_PTRDIFF_T_ */ |
00cb7f36 | 148 | #endif /* _PTRDIFF_T_ */ |
149 | #endif /* __PTRDIFF_T */ | |
150 | #endif /* _T_PTRDIFF */ | |
f1cea477 | 151 | #endif /* _T_PTRDIFF_ */ |
00cb7f36 | 152 | #endif /* _PTRDIFF_T */ |
153 | ||
69c30b10 | 154 | /* If this symbol has done its job, get rid of it. */ |
155 | #undef __need_ptrdiff_t | |
156 | ||
0db7b740 | 157 | #endif /* _STDDEF_H or __need_ptrdiff_t. */ |
158 | ||
00cb7f36 | 159 | /* Unsigned type of `sizeof' something. */ |
160 | ||
0db7b740 | 161 | /* Define this type if we are doing the whole job, |
162 | or if we want this type in particular. */ | |
163 | #if defined (_STDDEF_H) || defined (__need_size_t) | |
79013643 | 164 | #ifndef __size_t__ /* BeOS */ |
9caef960 | 165 | #ifndef __SIZE_T__ /* Cray Unicos/Mk */ |
00cb7f36 | 166 | #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */ |
fcc24a75 | 167 | #ifndef _SYS_SIZE_T_H |
f1cea477 | 168 | #ifndef _T_SIZE_ |
00cb7f36 | 169 | #ifndef _T_SIZE |
170 | #ifndef __SIZE_T | |
171 | #ifndef _SIZE_T_ | |
b862e373 | 172 | #ifndef _BSD_SIZE_T_ |
c48cecd7 | 173 | #ifndef _SIZE_T_DEFINED_ |
3da98d1b | 174 | #ifndef _SIZE_T_DEFINED |
e1039e7b | 175 | #ifndef _BSD_SIZE_T_DEFINED_ /* Darwin */ |
733997eb | 176 | #ifndef _SIZE_T_DECLARED /* FreeBSD 5 */ |
00cb7f36 | 177 | #ifndef ___int_size_t_h |
f1cea477 | 178 | #ifndef _GCC_SIZE_T |
b2540e0b | 179 | #ifndef _SIZET_ |
ed0efb93 | 180 | #ifndef __size_t |
79013643 | 181 | #define __size_t__ /* BeOS */ |
9caef960 | 182 | #define __SIZE_T__ /* Cray Unicos/Mk */ |
00cb7f36 | 183 | #define _SIZE_T |
fcc24a75 | 184 | #define _SYS_SIZE_T_H |
f1cea477 | 185 | #define _T_SIZE_ |
00cb7f36 | 186 | #define _T_SIZE |
187 | #define __SIZE_T | |
188 | #define _SIZE_T_ | |
b862e373 | 189 | #define _BSD_SIZE_T_ |
c48cecd7 | 190 | #define _SIZE_T_DEFINED_ |
3da98d1b | 191 | #define _SIZE_T_DEFINED |
e1039e7b | 192 | #define _BSD_SIZE_T_DEFINED_ /* Darwin */ |
733997eb | 193 | #define _SIZE_T_DECLARED /* FreeBSD 5 */ |
00cb7f36 | 194 | #define ___int_size_t_h |
f1cea477 | 195 | #define _GCC_SIZE_T |
b2540e0b | 196 | #define _SIZET_ |
07d455ca | 197 | #if defined (__FreeBSD__) \ |
463553db | 198 | || defined(__DragonFly__) \ |
b6d2c36a | 199 | || defined(__FreeBSD_kernel__) \ |
200 | || defined(__VMS__) | |
201 | /* __size_t is a typedef, must not trash it. */ | |
733997eb | 202 | #else |
ed0efb93 | 203 | #define __size_t |
733997eb | 204 | #endif |
b29231ea | 205 | #ifndef __SIZE_TYPE__ |
206 | #define __SIZE_TYPE__ long unsigned int | |
207 | #endif | |
0cdb5e6f | 208 | #if !(defined (__GNUG__) && defined (size_t)) |
00cb7f36 | 209 | typedef __SIZE_TYPE__ size_t; |
79013643 | 210 | #ifdef __BEOS__ |
211 | typedef long ssize_t; | |
212 | #endif /* __BEOS__ */ | |
0cdb5e6f | 213 | #endif /* !(defined (__GNUG__) && defined (size_t)) */ |
ed0efb93 | 214 | #endif /* __size_t */ |
b2540e0b | 215 | #endif /* _SIZET_ */ |
f1cea477 | 216 | #endif /* _GCC_SIZE_T */ |
00cb7f36 | 217 | #endif /* ___int_size_t_h */ |
733997eb | 218 | #endif /* _SIZE_T_DECLARED */ |
e1039e7b | 219 | #endif /* _BSD_SIZE_T_DEFINED_ */ |
3da98d1b | 220 | #endif /* _SIZE_T_DEFINED */ |
c48cecd7 | 221 | #endif /* _SIZE_T_DEFINED_ */ |
b862e373 | 222 | #endif /* _BSD_SIZE_T_ */ |
00cb7f36 | 223 | #endif /* _SIZE_T_ */ |
224 | #endif /* __SIZE_T */ | |
225 | #endif /* _T_SIZE */ | |
f1cea477 | 226 | #endif /* _T_SIZE_ */ |
fcc24a75 | 227 | #endif /* _SYS_SIZE_T_H */ |
00cb7f36 | 228 | #endif /* _SIZE_T */ |
9caef960 | 229 | #endif /* __SIZE_T__ */ |
79013643 | 230 | #endif /* __size_t__ */ |
69c30b10 | 231 | #undef __need_size_t |
0db7b740 | 232 | #endif /* _STDDEF_H or __need_size_t. */ |
00cb7f36 | 233 | |
69c30b10 | 234 | |
235 | /* Wide character type. | |
236 | Locale-writers should change this as necessary to | |
237 | be big enough to hold unique values not between 0 and 127, | |
238 | and not (wchar_t) -1, for each defined multibyte character. */ | |
00cb7f36 | 239 | |
0db7b740 | 240 | /* Define this type if we are doing the whole job, |
241 | or if we want this type in particular. */ | |
242 | #if defined (_STDDEF_H) || defined (__need_wchar_t) | |
79013643 | 243 | #ifndef __wchar_t__ /* BeOS */ |
9caef960 | 244 | #ifndef __WCHAR_T__ /* Cray Unicos/Mk */ |
00cb7f36 | 245 | #ifndef _WCHAR_T |
246 | #ifndef _T_WCHAR_ | |
105f7b10 | 247 | #ifndef _T_WCHAR |
00cb7f36 | 248 | #ifndef __WCHAR_T |
249 | #ifndef _WCHAR_T_ | |
b862e373 | 250 | #ifndef _BSD_WCHAR_T_ |
80d725d7 | 251 | #ifndef _BSD_WCHAR_T_DEFINED_ /* Darwin */ |
e1039e7b | 252 | #ifndef _BSD_RUNE_T_DEFINED_ /* Darwin */ |
733997eb | 253 | #ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */ |
c48cecd7 | 254 | #ifndef _WCHAR_T_DEFINED_ |
3da98d1b | 255 | #ifndef _WCHAR_T_DEFINED |
65e1295a | 256 | #ifndef _WCHAR_T_H |
00cb7f36 | 257 | #ifndef ___int_wchar_t_h |
8211d82f | 258 | #ifndef __INT_WCHAR_T_H |
f1cea477 | 259 | #ifndef _GCC_WCHAR_T |
79013643 | 260 | #define __wchar_t__ /* BeOS */ |
9caef960 | 261 | #define __WCHAR_T__ /* Cray Unicos/Mk */ |
00cb7f36 | 262 | #define _WCHAR_T |
263 | #define _T_WCHAR_ | |
105f7b10 | 264 | #define _T_WCHAR |
00cb7f36 | 265 | #define __WCHAR_T |
266 | #define _WCHAR_T_ | |
b862e373 | 267 | #define _BSD_WCHAR_T_ |
c48cecd7 | 268 | #define _WCHAR_T_DEFINED_ |
3da98d1b | 269 | #define _WCHAR_T_DEFINED |
65e1295a | 270 | #define _WCHAR_T_H |
00cb7f36 | 271 | #define ___int_wchar_t_h |
8211d82f | 272 | #define __INT_WCHAR_T_H |
f1cea477 | 273 | #define _GCC_WCHAR_T |
733997eb | 274 | #define _WCHAR_T_DECLARED |
b61fbd10 | 275 | |
276 | /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ | |
277 | instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other | |
278 | symbols in the _FOO_T_ family, stays defined even after its | |
279 | corresponding type is defined). If we define wchar_t, then we | |
280 | must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if | |
281 | we undef _WCHAR_T_, then we must also define rune_t, since | |
282 | headers like runetype.h assume that if machine/ansi.h is included, | |
283 | and _BSD_WCHAR_T_ is not defined, then rune_t is available. | |
284 | machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of | |
285 | the same type." */ | |
286 | #ifdef _BSD_WCHAR_T_ | |
287 | #undef _BSD_WCHAR_T_ | |
288 | #ifdef _BSD_RUNE_T_ | |
289 | #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) | |
290 | typedef _BSD_RUNE_T_ rune_t; | |
158da7c0 | 291 | #define _BSD_WCHAR_T_DEFINED_ |
e1039e7b | 292 | #define _BSD_RUNE_T_DEFINED_ /* Darwin */ |
733997eb | 293 | #if defined (__FreeBSD__) && (__FreeBSD__ < 5) |
ee9c3cfb | 294 | /* Why is this file so hard to maintain properly? In contrast to |
df283112 | 295 | the comment above regarding BSD/386 1.1, on FreeBSD for as long |
296 | as the symbol has existed, _BSD_RUNE_T_ must not stay defined or | |
297 | redundant typedefs will occur when stdlib.h is included after this file. */ | |
298 | #undef _BSD_RUNE_T_ | |
299 | #endif | |
b61fbd10 | 300 | #endif |
301 | #endif | |
302 | #endif | |
733997eb | 303 | /* FreeBSD 5 can't be handled well using "traditional" logic above |
304 | since it no longer defines _BSD_RUNE_T_ yet still desires to export | |
305 | rune_t in some cases... */ | |
306 | #if defined (__FreeBSD__) && (__FreeBSD__ >= 5) | |
307 | #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) | |
308 | #if __BSD_VISIBLE | |
309 | #ifndef _RUNE_T_DECLARED | |
310 | typedef __rune_t rune_t; | |
311 | #define _RUNE_T_DECLARED | |
312 | #endif | |
313 | #endif | |
314 | #endif | |
315 | #endif | |
b61fbd10 | 316 | |
b29231ea | 317 | #ifndef __WCHAR_TYPE__ |
318 | #define __WCHAR_TYPE__ int | |
319 | #endif | |
9af515ab | 320 | #ifndef __cplusplus |
00cb7f36 | 321 | typedef __WCHAR_TYPE__ wchar_t; |
322 | #endif | |
323 | #endif | |
324 | #endif | |
325 | #endif | |
326 | #endif | |
f1cea477 | 327 | #endif |
f992b523 | 328 | #endif |
733997eb | 329 | #endif /* _WCHAR_T_DECLARED */ |
e1039e7b | 330 | #endif /* _BSD_RUNE_T_DEFINED_ */ |
65e1295a | 331 | #endif |
8211d82f | 332 | #endif |
c48cecd7 | 333 | #endif |
b862e373 | 334 | #endif |
3da98d1b | 335 | #endif |
9af515ab | 336 | #endif |
80d725d7 | 337 | #endif |
9caef960 | 338 | #endif /* __WCHAR_T__ */ |
79013643 | 339 | #endif /* __wchar_t__ */ |
55369351 | 340 | #undef __need_wchar_t |
0db7b740 | 341 | #endif /* _STDDEF_H or __need_wchar_t. */ |
00cb7f36 | 342 | |
55dbcdfe | 343 | #if defined (__need_wint_t) |
23aff663 | 344 | #ifndef _WINT_T |
345 | #define _WINT_T | |
346 | ||
347 | #ifndef __WINT_TYPE__ | |
348 | #define __WINT_TYPE__ unsigned int | |
349 | #endif | |
23aff663 | 350 | typedef __WINT_TYPE__ wint_t; |
351 | #endif | |
38b2d359 | 352 | #undef __need_wint_t |
23aff663 | 353 | #endif |
23aff663 | 354 | |
c7af124d | 355 | #if defined(__NetBSD__) |
b61fbd10 | 356 | /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_ |
93dd477e | 357 | are probably typos and should be removed before 2.8 is released. */ |
d4a04e5d | 358 | #ifdef _GCC_PTRDIFF_T_ |
c319aebb | 359 | #undef _PTRDIFF_T_ |
b862e373 | 360 | #undef _BSD_PTRDIFF_T_ |
d4a04e5d | 361 | #endif |
362 | #ifdef _GCC_SIZE_T_ | |
c319aebb | 363 | #undef _SIZE_T_ |
b862e373 | 364 | #undef _BSD_SIZE_T_ |
c319aebb | 365 | #endif |
d4a04e5d | 366 | #ifdef _GCC_WCHAR_T_ |
367 | #undef _WCHAR_T_ | |
b862e373 | 368 | #undef _BSD_WCHAR_T_ |
abbd44ff | 369 | #endif |
b61fbd10 | 370 | /* The following ones are the real ones. */ |
371 | #ifdef _GCC_PTRDIFF_T | |
372 | #undef _PTRDIFF_T_ | |
93dd477e | 373 | #undef _BSD_PTRDIFF_T_ |
b61fbd10 | 374 | #endif |
375 | #ifdef _GCC_SIZE_T | |
376 | #undef _SIZE_T_ | |
93dd477e | 377 | #undef _BSD_SIZE_T_ |
b61fbd10 | 378 | #endif |
379 | #ifdef _GCC_WCHAR_T | |
380 | #undef _WCHAR_T_ | |
93dd477e | 381 | #undef _BSD_WCHAR_T_ |
b61fbd10 | 382 | #endif |
c7af124d | 383 | #endif /* __NetBSD__ */ |
c319aebb | 384 | |
087d2183 | 385 | #endif /* __sys_stdtypes_h */ |
386 | ||
00cb7f36 | 387 | /* A null pointer constant. */ |
388 | ||
69c30b10 | 389 | #if defined (_STDDEF_H) || defined (__need_NULL) |
00cb7f36 | 390 | #undef NULL /* in case <stdio.h> has defined it. */ |
cef3f5da | 391 | #ifdef __GNUG__ |
392 | #define NULL __null | |
393 | #else /* G++ */ | |
ba21f363 | 394 | #ifndef __cplusplus |
00cb7f36 | 395 | #define NULL ((void *)0) |
ba21f363 | 396 | #else /* C++ */ |
397 | #define NULL 0 | |
398 | #endif /* C++ */ | |
cef3f5da | 399 | #endif /* G++ */ |
69c30b10 | 400 | #endif /* NULL not defined and <stddef.h> or need NULL. */ |
401 | #undef __need_NULL | |
402 | ||
403 | #ifdef _STDDEF_H | |
00cb7f36 | 404 | |
64658f9a | 405 | /* Offset of member MEMBER in a struct of type TYPE. */ |
43bf5d72 | 406 | #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) |
407 | ||
32074525 | 408 | #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \ |
83e25171 | 409 | || (defined(__cplusplus) && __cplusplus >= 201103L) |
410 | #ifndef _GCC_MAX_ALIGN_T | |
411 | #define _GCC_MAX_ALIGN_T | |
412 | /* Type whose alignment is supported in every context and is at least | |
413 | as great as that of any standard type not using alignment | |
414 | specifiers. */ | |
415 | typedef struct { | |
416 | long long __max_align_ll __attribute__((__aligned__(__alignof__(long long)))); | |
417 | long double __max_align_ld __attribute__((__aligned__(__alignof__(long double)))); | |
9b5c49ef | 418 | /* _Float128 is defined as a basic type, so max_align_t must be |
419 | sufficiently aligned for it. This code must work in C++, so we | |
420 | use __float128 here; that is only available on some | |
421 | architectures, but only on i386 is extra alignment needed for | |
422 | __float128. */ | |
423 | #ifdef __i386__ | |
424 | __float128 __max_align_f128 __attribute__((__aligned__(__alignof(__float128)))); | |
425 | #endif | |
83e25171 | 426 | } max_align_t; |
427 | #endif | |
32074525 | 428 | #endif /* C11 or C++11. */ |
83e25171 | 429 | |
24b73c8c | 430 | #if defined(__cplusplus) && __cplusplus >= 201103L |
431 | #ifndef _GXX_NULLPTR_T | |
432 | #define _GXX_NULLPTR_T | |
433 | typedef decltype(nullptr) nullptr_t; | |
434 | #endif | |
435 | #endif /* C++11. */ | |
436 | ||
69c30b10 | 437 | #endif /* _STDDEF_H was defined this time */ |
188e3846 | 438 | |
9915044d | 439 | #endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__ |
440 | || __need_XXX was not defined before */ |