1 /** 2 * This file has no copyright assigned and is placed in the Public Domain. 3 * This file is part of the mingw-w64 runtime package. 4 * No warranty is given; refer to the file DISCLAIMER.PD within this package. 5 */ 6 7 #include <crtdefs.h> 8 9 #ifndef _INC_STDDEF 10 #define _INC_STDDEF 11 12 #ifdef __cplusplus 13 extern "C" { 14 #endif 15 16 #ifndef _CRT_ERRNO_DEFINED 17 #define _CRT_ERRNO_DEFINED 18 _CRTIMP extern int *__cdecl _errno(void); 19 #define errno (*_errno()) 20 errno_t __cdecl _set_errno(int _Value); 21 errno_t __cdecl _get_errno(int *_Value); 22 #endif /* _CRT_ERRNO_DEFINED */ 23 24 _CRTIMP extern unsigned long __cdecl __threadid(void); 25 #define _threadid (__threadid()) 26 _CRTIMP extern uintptr_t __cdecl __threadhandle(void); 27 28 #ifdef __cplusplus 29 } 30 #endif 31 32 #endif /* _INC_STDDEF */ 33 34 /* 35 * ISO C Standard: 7.17 Common definitions <stddef.h> 36 */ 37 #if (!defined(_STDDEF_H) && !defined(_STDDEF_H_) && !defined(_ANSI_STDDEF_H) \ 38 && !defined(__STDDEF_H__)) \ 39 || defined(__need_wchar_t) || defined(__need_size_t) \ 40 || defined(__need_ptrdiff_t) || defined(__need_NULL) \ 41 || defined(__need_wint_t) 42 43 /* Any one of these symbols __need_* means that GNU libc 44 wants us just to define one data type. So don't define 45 the symbols that indicate this file's entire job has been done. */ 46 #if (!defined(__need_wchar_t) && !defined(__need_size_t) \ 47 && !defined(__need_ptrdiff_t) && !defined(__need_NULL) \ 48 && !defined(__need_wint_t)) 49 #define _STDDEF_H 50 #define _STDDEF_H_ 51 /* snaroff (at) next.com says the NeXT needs this. */ 52 #define _ANSI_STDDEF_H 53 /* Irix 5.1 needs this. */ 54 #define __STDDEF_H__ 55 #endif 56 57 #ifndef __sys_stdtypes_h 58 /* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are 59 defined if the corresponding type is *not* defined. 60 FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_ */ 61 #if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) 62 #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_) 63 #define _SIZE_T 64 #endif 65 #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_) 66 #define _PTRDIFF_T 67 #endif 68 /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ 69 instead of _WCHAR_T_. */ 70 #if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_) 71 #ifndef _BSD_WCHAR_T_ 72 #define _WCHAR_T 73 #endif 74 #endif 75 /* Undef _FOO_T_ if we are supposed to define foo_t. */ 76 #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_) 77 #undef _PTRDIFF_T_ 78 #undef _BSD_PTRDIFF_T_ 79 #endif 80 #if defined (__need_size_t) || defined (_STDDEF_H_) 81 #undef _SIZE_T_ 82 #undef _BSD_SIZE_T_ 83 #endif 84 #if defined (__need_wchar_t) || defined (_STDDEF_H_) 85 #undef _WCHAR_T_ 86 #undef _BSD_WCHAR_T_ 87 #endif 88 #endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) */ 89 90 /* Sequent's header files use _PTRDIFF_T_ in some conflicting way. 91 Just ignore it. */ 92 #if defined (__sequent__) && defined (_PTRDIFF_T_) 93 #undef _PTRDIFF_T_ 94 #endif 95 96 /* On VxWorks, <type/vxTypesBase.h> may have defined macros like 97 _TYPE_size_t which will typedef size_t. fixincludes patched the 98 vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is 99 not defined, and so that defining this macro defines _GCC_SIZE_T. 100 If we find that the macros are still defined at this point, we must 101 invoke them so that the type is defined as expected. */ 102 #if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_)) 103 _TYPE_ptrdiff_t; 104 #undef _TYPE_ptrdiff_t 105 #endif 106 #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_)) 107 _TYPE_size_t; 108 #undef _TYPE_size_t 109 #endif 110 #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_)) 111 _TYPE_wchar_t; 112 #undef _TYPE_wchar_t 113 #endif 114 115 /* In case nobody has defined these types, but we aren't running under 116 GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and 117 __WCHAR_TYPE__ have reasonable values. This can happen if the 118 parts of GCC is compiled by an older compiler, that actually 119 include gstddef.h, such as collect2. */ 120 121 /* Signed type of difference of two pointers. */ 122 123 /* Define this type if we are doing the whole job, 124 or if we want this type in particular. */ 125 #if defined (_STDDEF_H) || defined (__need_ptrdiff_t) 126 #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */ 127 #ifndef _T_PTRDIFF_ 128 #ifndef _T_PTRDIFF 129 #ifndef __PTRDIFF_T 130 #ifndef _PTRDIFF_T_ 131 #ifndef _BSD_PTRDIFF_T_ 132 #ifndef ___int_ptrdiff_t_h 133 #ifndef _GCC_PTRDIFF_T 134 #define _PTRDIFF_T 135 #define _T_PTRDIFF_ 136 #define _T_PTRDIFF 137 #define __PTRDIFF_T 138 #define _PTRDIFF_T_ 139 #define _BSD_PTRDIFF_T_ 140 #define ___int_ptrdiff_t_h 141 #define _GCC_PTRDIFF_T 142 #ifndef __PTRDIFF_TYPE__ 143 #ifdef _WIN64 144 #define __PTRDIFF_TYPE__ long long int 145 #else 146 #define __PTRDIFF_TYPE__ long int 147 #endif 148 #endif 149 #ifndef _PTRDIFF_T_DEFINED 150 #define _PTRDIFF_T_DEFINED 151 __MINGW_EXTENSION typedef __PTRDIFF_TYPE__ ptrdiff_t; 152 #endif 153 #endif /* _GCC_PTRDIFF_T */ 154 #endif /* ___int_ptrdiff_t_h */ 155 #endif /* _BSD_PTRDIFF_T_ */ 156 #endif /* _PTRDIFF_T_ */ 157 #endif /* __PTRDIFF_T */ 158 #endif /* _T_PTRDIFF */ 159 #endif /* _T_PTRDIFF_ */ 160 #endif /* _PTRDIFF_T */ 161 162 /* If this symbol has done its job, get rid of it. */ 163 #undef __need_ptrdiff_t 164 165 #endif /* _STDDEF_H or __need_ptrdiff_t. */ 166 167 /* Unsigned type of `sizeof' something. */ 168 169 /* Define this type if we are doing the whole job, 170 or if we want this type in particular. */ 171 #if defined (_STDDEF_H) || defined (__need_size_t) 172 #ifndef __size_t__ /* BeOS */ 173 #ifndef __SIZE_T__ /* Cray Unicos/Mk */ 174 #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */ 175 #ifndef _SYS_SIZE_T_H 176 #ifndef _T_SIZE_ 177 #ifndef _T_SIZE 178 #ifndef __SIZE_T 179 #ifndef _SIZE_T_ 180 #ifndef _BSD_SIZE_T_ 181 #ifndef _SIZE_T_DEFINED_ 182 #ifndef _SIZE_T_DEFINED 183 #ifndef _BSD_SIZE_T_DEFINED_ /* Darwin */ 184 #ifndef _SIZE_T_DECLARED /* FreeBSD 5 */ 185 #ifndef ___int_size_t_h 186 #ifndef _GCC_SIZE_T 187 #ifndef _SIZET_ 188 #ifndef __size_t 189 #define __size_t__ /* BeOS */ 190 #define __SIZE_T__ /* Cray Unicos/Mk */ 191 #define _SIZE_T 192 #define _SYS_SIZE_T_H 193 #define _T_SIZE_ 194 #define _T_SIZE 195 #define __SIZE_T 196 #define _SIZE_T_ 197 #define _BSD_SIZE_T_ 198 #define _SIZE_T_DEFINED_ 199 #define _SIZE_T_DEFINED 200 #define _BSD_SIZE_T_DEFINED_ /* Darwin */ 201 #define _SIZE_T_DECLARED /* FreeBSD 5 */ 202 #define ___int_size_t_h 203 #define _GCC_SIZE_T 204 #define _SIZET_ 205 #if defined (__FreeBSD__) && (__FreeBSD__ >= 5) 206 /* __size_t is a typedef on FreeBSD 5!, must not trash it. */ 207 #else 208 #define __size_t 209 #endif 210 #ifndef __SIZE_TYPE__ 211 #ifdef _WIN64 212 #define __SIZE_TYPE__ long long unsigned int 213 #else 214 #define __SIZE_TYPE__ long unsigned int 215 #endif 216 #endif 217 #if !(defined (__GNUG__) && defined (size_t)) 218 __MINGW_EXTENSION typedef __SIZE_TYPE__ size_t; 219 #ifdef __BEOS__ 220 typedef long ssize_t; 221 #endif /* __BEOS__ */ 222 #endif /* !(defined (__GNUG__) && defined (size_t)) */ 223 #endif /* __size_t */ 224 #endif /* _SIZET_ */ 225 #endif /* _GCC_SIZE_T */ 226 #endif /* ___int_size_t_h */ 227 #endif /* _SIZE_T_DECLARED */ 228 #endif /* _BSD_SIZE_T_DEFINED_ */ 229 #endif /* _SIZE_T_DEFINED */ 230 #endif /* _SIZE_T_DEFINED_ */ 231 #endif /* _BSD_SIZE_T_ */ 232 #endif /* _SIZE_T_ */ 233 #endif /* __SIZE_T */ 234 #endif /* _T_SIZE */ 235 #endif /* _T_SIZE_ */ 236 #endif /* _SYS_SIZE_T_H */ 237 #endif /* _SIZE_T */ 238 #endif /* __SIZE_T__ */ 239 #endif /* __size_t__ */ 240 #undef __need_size_t 241 #endif /* _STDDEF_H or __need_size_t. */ 242 243 244 /* Wide character type. 245 Locale-writers should change this as necessary to 246 be big enough to hold unique values not between 0 and 127, 247 and not (wchar_t) -1, for each defined multibyte character. */ 248 249 /* Define this type if we are doing the whole job, 250 or if we want this type in particular. */ 251 #if defined (_STDDEF_H) || defined (__need_wchar_t) 252 #ifndef __wchar_t__ /* BeOS */ 253 #ifndef __WCHAR_T__ /* Cray Unicos/Mk */ 254 #ifndef _WCHAR_T 255 #ifndef _T_WCHAR_ 256 #ifndef _T_WCHAR 257 #ifndef __WCHAR_T 258 #ifndef _WCHAR_T_ 259 #ifndef _BSD_WCHAR_T_ 260 #ifndef _BSD_WCHAR_T_DEFINED_ /* Darwin */ 261 #ifndef _BSD_RUNE_T_DEFINED_ /* Darwin */ 262 #ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */ 263 #ifndef _WCHAR_T_DEFINED_ 264 #ifndef _WCHAR_T_DEFINED 265 #ifndef _WCHAR_T_H 266 #ifndef ___int_wchar_t_h 267 #ifndef __INT_WCHAR_T_H 268 #ifndef _GCC_WCHAR_T 269 #define __wchar_t__ /* BeOS */ 270 #define __WCHAR_T__ /* Cray Unicos/Mk */ 271 #define _WCHAR_T 272 #define _T_WCHAR_ 273 #define _T_WCHAR 274 #define __WCHAR_T 275 #define _WCHAR_T_ 276 #define _BSD_WCHAR_T_ 277 #define _WCHAR_T_DEFINED_ 278 #define _WCHAR_T_DEFINED 279 #define _WCHAR_T_H 280 #define ___int_wchar_t_h 281 #define __INT_WCHAR_T_H 282 #define _GCC_WCHAR_T 283 #define _WCHAR_T_DECLARED 284 285 /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ 286 instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other 287 symbols in the _FOO_T_ family, stays defined even after its 288 corresponding type is defined). If we define wchar_t, then we 289 must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if 290 we undef _WCHAR_T_, then we must also define rune_t, since 291 headers like runetype.h assume that if machine/ansi.h is included, 292 and _BSD_WCHAR_T_ is not defined, then rune_t is available. 293 machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of 294 the same type." */ 295 #ifdef _BSD_WCHAR_T_ 296 #undef _BSD_WCHAR_T_ 297 #ifdef _BSD_RUNE_T_ 298 #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) 299 typedef _BSD_RUNE_T_ rune_t; 300 #define _BSD_WCHAR_T_DEFINED_ 301 #define _BSD_RUNE_T_DEFINED_ /* Darwin */ 302 #if defined (__FreeBSD__) && (__FreeBSD__ < 5) 303 /* Why is this file so hard to maintain properly? In contrast to 304 the comment above regarding BSD/386 1.1, on FreeBSD for as long 305 as the symbol has existed, _BSD_RUNE_T_ must not stay defined or 306 redundant typedefs will occur when stdlib.h is included after this file. */ 307 #undef _BSD_RUNE_T_ 308 #endif 309 #endif 310 #endif 311 #endif 312 313 #ifndef __WCHAR_TYPE__ 314 /* wchar_t is unsigned short for compatibility with MS runtime */ 315 #define __WCHAR_TYPE__ unsigned short 316 #endif 317 #ifndef __cplusplus 318 typedef __WCHAR_TYPE__ wchar_t; 319 #endif 320 #endif 321 #endif 322 #endif 323 #endif 324 #endif 325 #endif 326 #endif /* _WCHAR_T_DECLARED */ 327 #endif /* _BSD_RUNE_T_DEFINED_ */ 328 #endif 329 #endif 330 #endif 331 #endif 332 #endif 333 #endif 334 #endif 335 #endif /* __WCHAR_T__ */ 336 #endif /* __wchar_t__ */ 337 #undef __need_wchar_t 338 #endif /* _STDDEF_H or __need_wchar_t. */ 339 340 #if defined (__need_wint_t) 341 #ifndef _WINT_T 342 #define _WINT_T 343 #ifndef __WINT_TYPE__ 344 /* wint_t is unsigned short for compatibility with MS runtime */ 345 #define __WINT_TYPE__ unsigned short 346 #endif 347 #ifndef _WCTYPE_T_DEFINED 348 #define _WCTYPE_T_DEFINED 349 typedef __WINT_TYPE__ wint_t; 350 typedef unsigned short wctype_t; 351 #endif 352 #endif 353 #undef __need_wint_t 354 #endif 355 356 /* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc. 357 are already defined. */ 358 /* BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here. */ 359 #if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) 360 /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_ 361 are probably typos and should be removed before 2.8 is released. */ 362 #ifdef _GCC_PTRDIFF_T_ 363 #undef _PTRDIFF_T_ 364 #undef _BSD_PTRDIFF_T_ 365 #endif 366 #ifdef _GCC_SIZE_T_ 367 #undef _SIZE_T_ 368 #undef _BSD_SIZE_T_ 369 #endif 370 #ifdef _GCC_WCHAR_T_ 371 #undef _WCHAR_T_ 372 #undef _BSD_WCHAR_T_ 373 #endif 374 /* The following ones are the real ones. */ 375 #ifdef _GCC_PTRDIFF_T 376 #undef _PTRDIFF_T_ 377 #undef _BSD_PTRDIFF_T_ 378 #endif 379 #ifdef _GCC_SIZE_T 380 #undef _SIZE_T_ 381 #undef _BSD_SIZE_T_ 382 #endif 383 #ifdef _GCC_WCHAR_T 384 #undef _WCHAR_T_ 385 #undef _BSD_WCHAR_T_ 386 #endif 387 #endif /* _ANSI_H_ || _MACHINE_ANSI_H_ */ 388 389 #endif /* __sys_stdtypes_h */ 390 391 /* A null pointer constant. */ 392 393 #if defined (_STDDEF_H) || defined (__need_NULL) 394 #undef NULL /* in case <stdio.h> has defined it. */ 395 #if defined(__GNUG__) && __GNUG__ >= 3 396 #define NULL __null 397 #else /* G++ */ 398 #ifndef __cplusplus 399 #define NULL ((void *)0) 400 #else /* C++ */ 401 #ifndef _WIN64 402 #define NULL 0 403 #else 404 #define NULL 0LL 405 #endif /* W64 */ 406 #endif /* C++ */ 407 #endif /* G++ */ 408 #endif /* NULL not defined and <stddef.h> or need NULL. */ 409 #undef __need_NULL 410 411 #ifdef _STDDEF_H 412 413 /* Offset of member MEMBER in a struct of type TYPE. */ 414 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) 415 416 #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \ 417 || (defined(__cplusplus) && __cplusplus >= 201103L) 418 #ifndef _GCC_MAX_ALIGN_T 419 #define _GCC_MAX_ALIGN_T 420 /* Type whose alignment is supported in every context and is at least 421 as great as that of any standard type not using alignment 422 specifiers. */ 423 typedef struct { 424 long long __max_align_ll __attribute__((__aligned__(__alignof__(long long)))); 425 long double __max_align_ld __attribute__((__aligned__(__alignof__(long double)))); 426 } max_align_t; 427 #endif 428 #endif /* C11 or C++11. */ 429 430 #endif /* _STDDEF_H was defined this time. */ 431 432 #endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__ 433 || __need_XXX was not defined before */ 434 435
