source: arduino-1-6-7/trunk/fuentes/arduino-ide-amd64/hardware/tools/avr/lib/gcc/avr/4.8.1/include/stddef.h @ 46

Last change on this file since 46 was 46, checked in by jrpelegrina, 4 years ago

First release to Xenial

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1/* Copyright (C) 1989-2013 Free Software Foundation, Inc.
2
3This file is part of GCC.
4
5GCC is free software; you can redistribute it and/or modify
6it under the terms of the GNU General Public License as published by
7the Free Software Foundation; either version 3, or (at your option)
8any later version.
9
10GCC is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13GNU General Public License for more details.
14
15Under Section 7 of GPL version 3, you are granted additional
16permissions described in the GCC Runtime Library Exception, version
173.1, as published by the Free Software Foundation.
18
19You should have received a copy of the GNU General Public License and
20a copy of the GCC Runtime Library Exception along with this program;
21see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
22<http://www.gnu.org/licenses/>.  */
23
24/*
25 * ISO C Standard:  7.17  Common definitions  <stddef.h>
26 */
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)
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)        \
37     && !defined(__need_ptrdiff_t) && !defined(__need_NULL)     \
38     && !defined(__need_wint_t))
39#define _STDDEF_H
40#define _STDDEF_H_
41/* snaroff@next.com says the NeXT needs this.  */
42#define _ANSI_STDDEF_H
43#endif
44
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
49/* On 4.3bsd-net2, make sure ansi.h is included, so we have
50   one less case to deal with in the following.  */
51#if defined (__BSD_NET2__) || defined (____386BSD____) || (defined (__FreeBSD__) && (__FreeBSD__ < 5)) || defined(__NetBSD__)
52#include <machine/ansi.h>
53#endif
54/* On FreeBSD 5, machine/ansi.h does not exist anymore... */
55#if defined (__FreeBSD__) && (__FreeBSD__ >= 5)
56#include <sys/_types.h>
57#endif
58
59/* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
60   defined if the corresponding type is *not* defined.
61   FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
62   NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_ */
63#if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_)  || defined(_I386_ANSI_H_)
64#if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_)
65#define _SIZE_T
66#endif
67#if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_)
68#define _PTRDIFF_T
69#endif
70/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
71   instead of _WCHAR_T_. */
72#if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_)
73#ifndef _BSD_WCHAR_T_
74#define _WCHAR_T
75#endif
76#endif
77/* Undef _FOO_T_ if we are supposed to define foo_t.  */
78#if defined (__need_ptrdiff_t) || defined (_STDDEF_H_)
79#undef _PTRDIFF_T_
80#undef _BSD_PTRDIFF_T_
81#endif
82#if defined (__need_size_t) || defined (_STDDEF_H_)
83#undef _SIZE_T_
84#undef _BSD_SIZE_T_
85#endif
86#if defined (__need_wchar_t) || defined (_STDDEF_H_)
87#undef _WCHAR_T_
88#undef _BSD_WCHAR_T_
89#endif
90#endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) */
91
92/* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
93   Just ignore it.  */
94#if defined (__sequent__) && defined (_PTRDIFF_T_)
95#undef _PTRDIFF_T_
96#endif
97
98/* On VxWorks, <type/vxTypesBase.h> may have defined macros like
99   _TYPE_size_t which will typedef size_t.  fixincludes patched the
100   vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
101   not defined, and so that defining this macro defines _GCC_SIZE_T.
102   If we find that the macros are still defined at this point, we must
103   invoke them so that the type is defined as expected.  */
104#if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_))
105_TYPE_ptrdiff_t;
106#undef _TYPE_ptrdiff_t
107#endif
108#if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_))
109_TYPE_size_t;
110#undef _TYPE_size_t
111#endif
112#if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_))
113_TYPE_wchar_t;
114#undef _TYPE_wchar_t
115#endif
116
117/* In case nobody has defined these types, but we aren't running under
118   GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and
119   __WCHAR_TYPE__ have reasonable values.  This can happen if the
120   parts of GCC is compiled by an older compiler, that actually
121   include gstddef.h, such as collect2.  */
122
123/* Signed type of difference of two pointers.  */
124
125/* Define this type if we are doing the whole job,
126   or if we want this type in particular.  */
127#if defined (_STDDEF_H) || defined (__need_ptrdiff_t)
128#ifndef _PTRDIFF_T      /* in case <sys/types.h> has defined it. */
129#ifndef _T_PTRDIFF_
130#ifndef _T_PTRDIFF
131#ifndef __PTRDIFF_T
132#ifndef _PTRDIFF_T_
133#ifndef _BSD_PTRDIFF_T_
134#ifndef ___int_ptrdiff_t_h
135#ifndef _GCC_PTRDIFF_T
136#define _PTRDIFF_T
137#define _T_PTRDIFF_
138#define _T_PTRDIFF
139#define __PTRDIFF_T
140#define _PTRDIFF_T_
141#define _BSD_PTRDIFF_T_
142#define ___int_ptrdiff_t_h
143#define _GCC_PTRDIFF_T
144#ifndef __PTRDIFF_TYPE__
145#define __PTRDIFF_TYPE__ long int
146#endif
147typedef __PTRDIFF_TYPE__ ptrdiff_t;
148#endif /* _GCC_PTRDIFF_T */
149#endif /* ___int_ptrdiff_t_h */
150#endif /* _BSD_PTRDIFF_T_ */
151#endif /* _PTRDIFF_T_ */
152#endif /* __PTRDIFF_T */
153#endif /* _T_PTRDIFF */
154#endif /* _T_PTRDIFF_ */
155#endif /* _PTRDIFF_T */
156
157/* If this symbol has done its job, get rid of it.  */
158#undef  __need_ptrdiff_t
159
160#endif /* _STDDEF_H or __need_ptrdiff_t.  */
161
162/* Unsigned type of `sizeof' something.  */
163
164/* Define this type if we are doing the whole job,
165   or if we want this type in particular.  */
166#if defined (_STDDEF_H) || defined (__need_size_t)
167#ifndef __size_t__      /* BeOS */
168#ifndef __SIZE_T__      /* Cray Unicos/Mk */
169#ifndef _SIZE_T /* in case <sys/types.h> has defined it. */
170#ifndef _SYS_SIZE_T_H
171#ifndef _T_SIZE_
172#ifndef _T_SIZE
173#ifndef __SIZE_T
174#ifndef _SIZE_T_
175#ifndef _BSD_SIZE_T_
176#ifndef _SIZE_T_DEFINED_
177#ifndef _SIZE_T_DEFINED
178#ifndef _BSD_SIZE_T_DEFINED_    /* Darwin */
179#ifndef _SIZE_T_DECLARED        /* FreeBSD 5 */
180#ifndef ___int_size_t_h
181#ifndef _GCC_SIZE_T
182#ifndef _SIZET_
183#ifndef __size_t
184#define __size_t__      /* BeOS */
185#define __SIZE_T__      /* Cray Unicos/Mk */
186#define _SIZE_T
187#define _SYS_SIZE_T_H
188#define _T_SIZE_
189#define _T_SIZE
190#define __SIZE_T
191#define _SIZE_T_
192#define _BSD_SIZE_T_
193#define _SIZE_T_DEFINED_
194#define _SIZE_T_DEFINED
195#define _BSD_SIZE_T_DEFINED_    /* Darwin */
196#define _SIZE_T_DECLARED        /* FreeBSD 5 */
197#define ___int_size_t_h
198#define _GCC_SIZE_T
199#define _SIZET_
200#if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
201  || defined(__FreeBSD_kernel__)
202/* __size_t is a typedef on FreeBSD 5, must not trash it. */
203#elif defined (__VMS__)
204/* __size_t is also a typedef on VMS.  */
205#else
206#define __size_t
207#endif
208#ifndef __SIZE_TYPE__
209#define __SIZE_TYPE__ long unsigned int
210#endif
211#if !(defined (__GNUG__) && defined (size_t))
212typedef __SIZE_TYPE__ size_t;
213#ifdef __BEOS__
214typedef long ssize_t;
215#endif /* __BEOS__ */
216#endif /* !(defined (__GNUG__) && defined (size_t)) */
217#endif /* __size_t */
218#endif /* _SIZET_ */
219#endif /* _GCC_SIZE_T */
220#endif /* ___int_size_t_h */
221#endif /* _SIZE_T_DECLARED */
222#endif /* _BSD_SIZE_T_DEFINED_ */
223#endif /* _SIZE_T_DEFINED */
224#endif /* _SIZE_T_DEFINED_ */
225#endif /* _BSD_SIZE_T_ */
226#endif /* _SIZE_T_ */
227#endif /* __SIZE_T */
228#endif /* _T_SIZE */
229#endif /* _T_SIZE_ */
230#endif /* _SYS_SIZE_T_H */
231#endif /* _SIZE_T */
232#endif /* __SIZE_T__ */
233#endif /* __size_t__ */
234#undef  __need_size_t
235#endif /* _STDDEF_H or __need_size_t.  */
236
237
238/* Wide character type.
239   Locale-writers should change this as necessary to
240   be big enough to hold unique values not between 0 and 127,
241   and not (wchar_t) -1, for each defined multibyte character.  */
242
243/* Define this type if we are doing the whole job,
244   or if we want this type in particular.  */
245#if defined (_STDDEF_H) || defined (__need_wchar_t)
246#ifndef __wchar_t__     /* BeOS */
247#ifndef __WCHAR_T__     /* Cray Unicos/Mk */
248#ifndef _WCHAR_T
249#ifndef _T_WCHAR_
250#ifndef _T_WCHAR
251#ifndef __WCHAR_T
252#ifndef _WCHAR_T_
253#ifndef _BSD_WCHAR_T_
254#ifndef _BSD_WCHAR_T_DEFINED_    /* Darwin */
255#ifndef _BSD_RUNE_T_DEFINED_    /* Darwin */
256#ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */
257#ifndef _WCHAR_T_DEFINED_
258#ifndef _WCHAR_T_DEFINED
259#ifndef _WCHAR_T_H
260#ifndef ___int_wchar_t_h
261#ifndef __INT_WCHAR_T_H
262#ifndef _GCC_WCHAR_T
263#define __wchar_t__     /* BeOS */
264#define __WCHAR_T__     /* Cray Unicos/Mk */
265#define _WCHAR_T
266#define _T_WCHAR_
267#define _T_WCHAR
268#define __WCHAR_T
269#define _WCHAR_T_
270#define _BSD_WCHAR_T_
271#define _WCHAR_T_DEFINED_
272#define _WCHAR_T_DEFINED
273#define _WCHAR_T_H
274#define ___int_wchar_t_h
275#define __INT_WCHAR_T_H
276#define _GCC_WCHAR_T
277#define _WCHAR_T_DECLARED
278
279/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
280   instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
281   symbols in the _FOO_T_ family, stays defined even after its
282   corresponding type is defined).  If we define wchar_t, then we
283   must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
284   we undef _WCHAR_T_, then we must also define rune_t, since
285   headers like runetype.h assume that if machine/ansi.h is included,
286   and _BSD_WCHAR_T_ is not defined, then rune_t is available.
287   machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
288   the same type." */
289#ifdef _BSD_WCHAR_T_
290#undef _BSD_WCHAR_T_
291#ifdef _BSD_RUNE_T_
292#if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
293typedef _BSD_RUNE_T_ rune_t;
294#define _BSD_WCHAR_T_DEFINED_
295#define _BSD_RUNE_T_DEFINED_    /* Darwin */
296#if defined (__FreeBSD__) && (__FreeBSD__ < 5)
297/* Why is this file so hard to maintain properly?  In contrast to
298   the comment above regarding BSD/386 1.1, on FreeBSD for as long
299   as the symbol has existed, _BSD_RUNE_T_ must not stay defined or
300   redundant typedefs will occur when stdlib.h is included after this file. */
301#undef _BSD_RUNE_T_
302#endif
303#endif
304#endif
305#endif
306/* FreeBSD 5 can't be handled well using "traditional" logic above
307   since it no longer defines _BSD_RUNE_T_ yet still desires to export
308   rune_t in some cases... */
309#if defined (__FreeBSD__) && (__FreeBSD__ >= 5)
310#if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
311#if __BSD_VISIBLE
312#ifndef _RUNE_T_DECLARED
313typedef __rune_t        rune_t;
314#define _RUNE_T_DECLARED
315#endif
316#endif
317#endif
318#endif
319
320#ifndef __WCHAR_TYPE__
321#define __WCHAR_TYPE__ int
322#endif
323#ifndef __cplusplus
324typedef __WCHAR_TYPE__ wchar_t;
325#endif
326#endif
327#endif
328#endif
329#endif
330#endif
331#endif
332#endif /* _WCHAR_T_DECLARED */
333#endif /* _BSD_RUNE_T_DEFINED_ */
334#endif
335#endif
336#endif
337#endif
338#endif
339#endif
340#endif
341#endif /* __WCHAR_T__ */
342#endif /* __wchar_t__ */
343#undef  __need_wchar_t
344#endif /* _STDDEF_H or __need_wchar_t.  */
345
346#if defined (__need_wint_t)
347#ifndef _WINT_T
348#define _WINT_T
349
350#ifndef __WINT_TYPE__
351#define __WINT_TYPE__ unsigned int
352#endif
353typedef __WINT_TYPE__ wint_t;
354#endif
355#undef __need_wint_t
356#endif
357
358/*  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
359    are already defined.  */
360/*  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.  */
361/*  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.  */
362#if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_)
363/*  The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_
364    are probably typos and should be removed before 2.8 is released.  */
365#ifdef _GCC_PTRDIFF_T_
366#undef _PTRDIFF_T_
367#undef _BSD_PTRDIFF_T_
368#endif
369#ifdef _GCC_SIZE_T_
370#undef _SIZE_T_
371#undef _BSD_SIZE_T_
372#endif
373#ifdef _GCC_WCHAR_T_
374#undef _WCHAR_T_
375#undef _BSD_WCHAR_T_
376#endif
377/*  The following ones are the real ones.  */
378#ifdef _GCC_PTRDIFF_T
379#undef _PTRDIFF_T_
380#undef _BSD_PTRDIFF_T_
381#endif
382#ifdef _GCC_SIZE_T
383#undef _SIZE_T_
384#undef _BSD_SIZE_T_
385#endif
386#ifdef _GCC_WCHAR_T
387#undef _WCHAR_T_
388#undef _BSD_WCHAR_T_
389#endif
390#endif /* _ANSI_H_ || _MACHINE_ANSI_H_ || _X86_64_ANSI_H_ || _I386_ANSI_H_ */
391
392#endif /* __sys_stdtypes_h */
393
394/* A null pointer constant.  */
395
396#if defined (_STDDEF_H) || defined (__need_NULL)
397#undef NULL             /* in case <stdio.h> has defined it. */
398#ifdef __GNUG__
399#define NULL __null
400#else   /* G++ */
401#ifndef __cplusplus
402#define NULL ((void *)0)
403#else   /* C++ */
404#define NULL 0
405#endif  /* C++ */
406#endif  /* G++ */
407#endif  /* NULL not defined and <stddef.h> or need NULL.  */
408#undef  __need_NULL
409
410#ifdef _STDDEF_H
411
412/* Offset of member MEMBER in a struct of type TYPE. */
413#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
414
415#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
416  || (defined(__cplusplus) && __cplusplus >= 201103L)
417#ifndef _GCC_MAX_ALIGN_T
418#define _GCC_MAX_ALIGN_T
419/* Type whose alignment is supported in every context and is at least
420   as great as that of any standard type not using alignment
421   specifiers.  */
422typedef struct {
423  long long __max_align_ll __attribute__((__aligned__(__alignof__(long long))));
424  long double __max_align_ld __attribute__((__aligned__(__alignof__(long double))));
425} max_align_t;
426#endif
427#endif /* C11 or C++11.  */
428
429#if defined(__cplusplus) && __cplusplus >= 201103L
430#ifndef _GXX_NULLPTR_T
431#define _GXX_NULLPTR_T
432  typedef decltype(nullptr) nullptr_t;
433#endif
434#endif /* C++11.  */
435
436#endif /* _STDDEF_H was defined this time */
437
438#endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__
439          || __need_XXX was not defined before */
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