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/* Copyright (C) 1989-2015 Free Software Foundation, Inc. |
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|
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This file is part of GCC. |
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|
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GCC is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 3, or (at your option) |
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any later version. |
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|
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GCC is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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Under Section 7 of GPL version 3, you are granted additional |
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permissions described in the GCC Runtime Library Exception, version |
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3.1, as published by the Free Software Foundation. |
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|
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You should have received a copy of the GNU General Public License and |
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a copy of the GCC Runtime Library Exception along with this program; |
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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<http://www.gnu.org/licenses/>. */ |
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|
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/* |
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* ISO C Standard: 7.17 Common definitions <stddef.h> |
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*/ |
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#if (!defined(_STDDEF_H) && !defined(_STDDEF_H_) && !defined(_ANSI_STDDEF_H) \ |
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&& !defined(__STDDEF_H__)) \ |
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|| defined(__need_wchar_t) || defined(__need_size_t) \ |
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|| defined(__need_ptrdiff_t) || defined(__need_NULL) \ |
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|| defined(__need_wint_t) |
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|
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/* Any one of these symbols __need_* means that GNU libc |
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wants us just to define one data type. So don't define |
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the symbols that indicate this file's entire job has been done. */ |
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#if (!defined(__need_wchar_t) && !defined(__need_size_t) \ |
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&& !defined(__need_ptrdiff_t) && !defined(__need_NULL) \ |
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&& !defined(__need_wint_t)) |
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#define _STDDEF_H |
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#define _STDDEF_H_ |
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/* snaroff@next.com says the NeXT needs this. */ |
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#define _ANSI_STDDEF_H |
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#endif |
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|
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#ifndef __sys_stdtypes_h |
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/* This avoids lossage on SunOS but only if stdtypes.h comes first. |
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There's no way to win with the other order! Sun lossage. */ |
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|
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/* On 4.3bsd-net2, make sure ansi.h is included, so we have |
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one less case to deal with in the following. */ |
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#if defined (__BSD_NET2__) || defined (____386BSD____) || (defined (__FreeBSD__) && (__FreeBSD__ < 5)) || defined(__NetBSD__) |
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#include <machine/ansi.h> |
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#endif |
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/* On FreeBSD 5, machine/ansi.h does not exist anymore... */ |
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#if defined (__FreeBSD__) && (__FreeBSD__ >= 5) |
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#include <sys/_types.h> |
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#endif |
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|
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/* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are |
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defined if the corresponding type is *not* defined. |
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FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_. |
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NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_ */ |
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#if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) |
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#if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_) |
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#define _SIZE_T |
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#endif |
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#if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_) |
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#define _PTRDIFF_T |
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#endif |
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/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ |
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instead of _WCHAR_T_. */ |
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#if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_) |
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#ifndef _BSD_WCHAR_T_ |
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#define _WCHAR_T |
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#endif |
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#endif |
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/* Undef _FOO_T_ if we are supposed to define foo_t. */ |
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#if defined (__need_ptrdiff_t) || defined (_STDDEF_H_) |
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#undef _PTRDIFF_T_ |
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#undef _BSD_PTRDIFF_T_ |
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#endif |
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#if defined (__need_size_t) || defined (_STDDEF_H_) |
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#undef _SIZE_T_ |
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#undef _BSD_SIZE_T_ |
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#endif |
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#if defined (__need_wchar_t) || defined (_STDDEF_H_) |
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#undef _WCHAR_T_ |
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#undef _BSD_WCHAR_T_ |
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#endif |
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#endif /* defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) */ |
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|
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/* Sequent's header files use _PTRDIFF_T_ in some conflicting way. |
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Just ignore it. */ |
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#if defined (__sequent__) && defined (_PTRDIFF_T_) |
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#undef _PTRDIFF_T_ |
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#endif |
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|
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/* On VxWorks, <type/vxTypesBase.h> may have defined macros like |
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_TYPE_size_t which will typedef size_t. fixincludes patched the |
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vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is |
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not defined, and so that defining this macro defines _GCC_SIZE_T. |
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If we find that the macros are still defined at this point, we must |
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invoke them so that the type is defined as expected. */ |
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#if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_)) |
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_TYPE_ptrdiff_t; |
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#undef _TYPE_ptrdiff_t |
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#endif |
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#if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_)) |
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_TYPE_size_t; |
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#undef _TYPE_size_t |
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#endif |
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#if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_)) |
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_TYPE_wchar_t; |
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#undef _TYPE_wchar_t |
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#endif |
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|
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/* In case nobody has defined these types, but we aren't running under |
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GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and |
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__WCHAR_TYPE__ have reasonable values. This can happen if the |
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parts of GCC is compiled by an older compiler, that actually |
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include gstddef.h, such as collect2. */ |
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|
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/* Signed type of difference of two pointers. */ |
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|
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/* Define this type if we are doing the whole job, |
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or if we want this type in particular. */ |
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#if defined (_STDDEF_H) || defined (__need_ptrdiff_t) |
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#ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */ |
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#ifndef _T_PTRDIFF_ |
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#ifndef _T_PTRDIFF |
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#ifndef __PTRDIFF_T |
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#ifndef _PTRDIFF_T_ |
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#ifndef _BSD_PTRDIFF_T_ |
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#ifndef ___int_ptrdiff_t_h |
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#ifndef _GCC_PTRDIFF_T |
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#ifndef _PTRDIFF_T_DECLARED /* DragonFly */ |
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#define _PTRDIFF_T |
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#define _T_PTRDIFF_ |
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#define _T_PTRDIFF |
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#define __PTRDIFF_T |
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#define _PTRDIFF_T_ |
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#define _BSD_PTRDIFF_T_ |
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#define ___int_ptrdiff_t_h |
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#define _GCC_PTRDIFF_T |
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#define _PTRDIFF_T_DECLARED |
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#ifndef __PTRDIFF_TYPE__ |
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#define __PTRDIFF_TYPE__ long int |
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#endif |
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typedef __PTRDIFF_TYPE__ ptrdiff_t; |
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#endif /* _PTRDIFF_T_DECLARED */ |
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#endif /* _GCC_PTRDIFF_T */ |
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#endif /* ___int_ptrdiff_t_h */ |
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#endif /* _BSD_PTRDIFF_T_ */ |
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#endif /* _PTRDIFF_T_ */ |
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#endif /* __PTRDIFF_T */ |
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#endif /* _T_PTRDIFF */ |
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#endif /* _T_PTRDIFF_ */ |
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#endif /* _PTRDIFF_T */ |
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|
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/* If this symbol has done its job, get rid of it. */ |
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#undef __need_ptrdiff_t |
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|
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#endif /* _STDDEF_H or __need_ptrdiff_t. */ |
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|
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/* Unsigned type of `sizeof' something. */ |
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|
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/* Define this type if we are doing the whole job, |
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or if we want this type in particular. */ |
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#if defined (_STDDEF_H) || defined (__need_size_t) |
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#ifndef __size_t__ /* BeOS */ |
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#ifndef __SIZE_T__ /* Cray Unicos/Mk */ |
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#ifndef _SIZE_T /* in case <sys/types.h> has defined it. */ |
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#ifndef _SYS_SIZE_T_H |
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#ifndef _T_SIZE_ |
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#ifndef _T_SIZE |
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#ifndef __SIZE_T |
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#ifndef _SIZE_T_ |
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#ifndef _BSD_SIZE_T_ |
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#ifndef _SIZE_T_DEFINED_ |
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#ifndef _SIZE_T_DEFINED |
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#ifndef _BSD_SIZE_T_DEFINED_ /* Darwin */ |
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#ifndef _SIZE_T_DECLARED /* FreeBSD 5 */ |
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#ifndef ___int_size_t_h |
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#ifndef _GCC_SIZE_T |
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#ifndef _SIZET_ |
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#ifndef __size_t |
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#define __size_t__ /* BeOS */ |
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#define __SIZE_T__ /* Cray Unicos/Mk */ |
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#define _SIZE_T |
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#define _SYS_SIZE_T_H |
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#define _T_SIZE_ |
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#define _T_SIZE |
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#define __SIZE_T |
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#define _SIZE_T_ |
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#define _BSD_SIZE_T_ |
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#define _SIZE_T_DEFINED_ |
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#define _SIZE_T_DEFINED |
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#define _BSD_SIZE_T_DEFINED_ /* Darwin */ |
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#define _SIZE_T_DECLARED /* FreeBSD 5 */ |
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#define ___int_size_t_h |
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#define _GCC_SIZE_T |
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#define _SIZET_ |
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#if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \ |
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|| defined(__DragonFly__) \ |
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|| defined(__FreeBSD_kernel__) |
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/* __size_t is a typedef on FreeBSD 5, must not trash it. */ |
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#elif defined (__VMS__) |
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/* __size_t is also a typedef on VMS. */ |
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#else |
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#define __size_t |
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#endif |
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#ifndef __SIZE_TYPE__ |
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#define __SIZE_TYPE__ long unsigned int |
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#endif |
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#if !(defined (__GNUG__) && defined (size_t)) |
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typedef __SIZE_TYPE__ size_t; |
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#ifdef __BEOS__ |
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typedef long ssize_t; |
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#endif /* __BEOS__ */ |
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#endif /* !(defined (__GNUG__) && defined (size_t)) */ |
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#endif /* __size_t */ |
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#endif /* _SIZET_ */ |
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#endif /* _GCC_SIZE_T */ |
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#endif /* ___int_size_t_h */ |
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#endif /* _SIZE_T_DECLARED */ |
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#endif /* _BSD_SIZE_T_DEFINED_ */ |
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#endif /* _SIZE_T_DEFINED */ |
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#endif /* _SIZE_T_DEFINED_ */ |
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#endif /* _BSD_SIZE_T_ */ |
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#endif /* _SIZE_T_ */ |
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#endif /* __SIZE_T */ |
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#endif /* _T_SIZE */ |
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#endif /* _T_SIZE_ */ |
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#endif /* _SYS_SIZE_T_H */ |
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#endif /* _SIZE_T */ |
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#endif /* __SIZE_T__ */ |
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#endif /* __size_t__ */ |
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#undef __need_size_t |
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#endif /* _STDDEF_H or __need_size_t. */ |
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|
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|
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/* Wide character type. |
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Locale-writers should change this as necessary to |
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be big enough to hold unique values not between 0 and 127, |
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and not (wchar_t) -1, for each defined multibyte character. */ |
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|
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/* Define this type if we are doing the whole job, |
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or if we want this type in particular. */ |
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#if defined (_STDDEF_H) || defined (__need_wchar_t) |
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#ifndef __wchar_t__ /* BeOS */ |
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#ifndef __WCHAR_T__ /* Cray Unicos/Mk */ |
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#ifndef _WCHAR_T |
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#ifndef _T_WCHAR_ |
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#ifndef _T_WCHAR |
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#ifndef __WCHAR_T |
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#ifndef _WCHAR_T_ |
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#ifndef _BSD_WCHAR_T_ |
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#ifndef _BSD_WCHAR_T_DEFINED_ /* Darwin */ |
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#ifndef _BSD_RUNE_T_DEFINED_ /* Darwin */ |
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#ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */ |
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#ifndef _WCHAR_T_DEFINED_ |
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#ifndef _WCHAR_T_DEFINED |
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#ifndef _WCHAR_T_H |
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#ifndef ___int_wchar_t_h |
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#ifndef __INT_WCHAR_T_H |
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#ifndef _GCC_WCHAR_T |
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#define __wchar_t__ /* BeOS */ |
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#define __WCHAR_T__ /* Cray Unicos/Mk */ |
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#define _WCHAR_T |
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#define _T_WCHAR_ |
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#define _T_WCHAR |
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#define __WCHAR_T |
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#define _WCHAR_T_ |
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#define _BSD_WCHAR_T_ |
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#define _WCHAR_T_DEFINED_ |
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#define _WCHAR_T_DEFINED |
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#define _WCHAR_T_H |
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#define ___int_wchar_t_h |
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#define __INT_WCHAR_T_H |
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#define _GCC_WCHAR_T |
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#define _WCHAR_T_DECLARED |
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|
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/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_ |
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instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other |
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symbols in the _FOO_T_ family, stays defined even after its |
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corresponding type is defined). If we define wchar_t, then we |
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must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if |
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we undef _WCHAR_T_, then we must also define rune_t, since |
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headers like runetype.h assume that if machine/ansi.h is included, |
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and _BSD_WCHAR_T_ is not defined, then rune_t is available. |
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machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of |
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the same type." */ |
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#ifdef _BSD_WCHAR_T_ |
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#undef _BSD_WCHAR_T_ |
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#ifdef _BSD_RUNE_T_ |
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#if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) |
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typedef _BSD_RUNE_T_ rune_t; |
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#define _BSD_WCHAR_T_DEFINED_ |
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#define _BSD_RUNE_T_DEFINED_ /* Darwin */ |
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#if defined (__FreeBSD__) && (__FreeBSD__ < 5) |
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/* Why is this file so hard to maintain properly? In contrast to |
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the comment above regarding BSD/386 1.1, on FreeBSD for as long |
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as the symbol has existed, _BSD_RUNE_T_ must not stay defined or |
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redundant typedefs will occur when stdlib.h is included after this file. */ |
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#undef _BSD_RUNE_T_ |
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#endif |
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#endif |
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#endif |
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#endif |
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/* FreeBSD 5 can't be handled well using "traditional" logic above |
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since it no longer defines _BSD_RUNE_T_ yet still desires to export |
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rune_t in some cases... */ |
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#if defined (__FreeBSD__) && (__FreeBSD__ >= 5) |
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#if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE) |
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#if __BSD_VISIBLE |
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#ifndef _RUNE_T_DECLARED |
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typedef __rune_t rune_t; |
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#define _RUNE_T_DECLARED |
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#endif |
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#endif |
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#endif |
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#endif |
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|
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#ifndef __WCHAR_TYPE__ |
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#define __WCHAR_TYPE__ int |
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#endif |
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#ifndef __cplusplus |
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typedef __WCHAR_TYPE__ wchar_t; |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif /* _WCHAR_T_DECLARED */ |
| 337 |
#endif /* _BSD_RUNE_T_DEFINED_ */ |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif |
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#endif /* __WCHAR_T__ */ |
| 346 |
#endif /* __wchar_t__ */ |
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#undef __need_wchar_t |
| 348 |
#endif /* _STDDEF_H or __need_wchar_t. */ |
| 349 |
|
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#if defined (__need_wint_t) |
| 351 |
#ifndef _WINT_T |
| 352 |
#define _WINT_T |
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|
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#ifndef __WINT_TYPE__ |
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#define __WINT_TYPE__ unsigned int |
| 356 |
#endif |
| 357 |
typedef __WINT_TYPE__ wint_t; |
| 358 |
#endif |
| 359 |
#undef __need_wint_t |
| 360 |
#endif |
| 361 |
|
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/* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc. |
| 363 |
are already defined. */ |
| 364 |
/* BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here. */ |
| 365 |
/* NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here. */ |
| 366 |
#if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_) || defined(_I386_ANSI_H_) |
| 367 |
/* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_ |
| 368 |
are probably typos and should be removed before 2.8 is released. */ |
| 369 |
#ifdef _GCC_PTRDIFF_T_ |
| 370 |
#undef _PTRDIFF_T_ |
| 371 |
#undef _BSD_PTRDIFF_T_ |
| 372 |
#endif |
| 373 |
#ifdef _GCC_SIZE_T_ |
| 374 |
#undef _SIZE_T_ |
| 375 |
#undef _BSD_SIZE_T_ |
| 376 |
#endif |
| 377 |
#ifdef _GCC_WCHAR_T_ |
| 378 |
#undef _WCHAR_T_ |
| 379 |
#undef _BSD_WCHAR_T_ |
| 380 |
#endif |
| 381 |
/* The following ones are the real ones. */ |
| 382 |
#ifdef _GCC_PTRDIFF_T |
| 383 |
#undef _PTRDIFF_T_ |
| 384 |
#undef _BSD_PTRDIFF_T_ |
| 385 |
#endif |
| 386 |
#ifdef _GCC_SIZE_T |
| 387 |
#undef _SIZE_T_ |
| 388 |
#undef _BSD_SIZE_T_ |
| 389 |
#endif |
| 390 |
#ifdef _GCC_WCHAR_T |
| 391 |
#undef _WCHAR_T_ |
| 392 |
#undef _BSD_WCHAR_T_ |
| 393 |
#endif |
| 394 |
#endif /* _ANSI_H_ || _MACHINE_ANSI_H_ || _X86_64_ANSI_H_ || _I386_ANSI_H_ */ |
| 395 |
|
| 396 |
#endif /* __sys_stdtypes_h */ |
| 397 |
|
| 398 |
/* A null pointer constant. */ |
| 399 |
|
| 400 |
#if defined (_STDDEF_H) || defined (__need_NULL) |
| 401 |
#undef NULL /* in case <stdio.h> has defined it. */ |
| 402 |
#ifdef __GNUG__ |
| 403 |
#define NULL __null |
| 404 |
#else /* G++ */ |
| 405 |
#ifndef __cplusplus |
| 406 |
#define NULL ((void *)0) |
| 407 |
#else /* C++ */ |
| 408 |
#define NULL 0 |
| 409 |
#endif /* C++ */ |
| 410 |
#endif /* G++ */ |
| 411 |
#endif /* NULL not defined and <stddef.h> or need NULL. */ |
| 412 |
#undef __need_NULL |
| 413 |
|
| 414 |
#ifdef _STDDEF_H |
| 415 |
|
| 416 |
/* Offset of member MEMBER in a struct of type TYPE. */ |
| 417 |
#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) |
| 418 |
|
| 419 |
#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \ |
| 420 |
|| (defined(__cplusplus) && __cplusplus >= 201103L) |
| 421 |
#ifndef _GCC_MAX_ALIGN_T |
| 422 |
#define _GCC_MAX_ALIGN_T |
| 423 |
/* Type whose alignment is supported in every context and is at least |
| 424 |
as great as that of any standard type not using alignment |
| 425 |
specifiers. */ |
| 426 |
typedef struct { |
| 427 |
long long __max_align_ll __attribute__((__aligned__(__alignof__(long long)))); |
| 428 |
long double __max_align_ld __attribute__((__aligned__(__alignof__(long double)))); |
| 429 |
} max_align_t; |
| 430 |
#endif |
| 431 |
#endif /* C11 or C++11. */ |
| 432 |
|
| 433 |
#if defined(__cplusplus) && __cplusplus >= 201103L |
| 434 |
#ifndef _GXX_NULLPTR_T |
| 435 |
#define _GXX_NULLPTR_T |
| 436 |
typedef decltype(nullptr) nullptr_t; |
| 437 |
#endif |
| 438 |
#endif /* C++11. */ |
| 439 |
|
| 440 |
#endif /* _STDDEF_H was defined this time */ |
| 441 |
|
| 442 |
#endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__ |
| 443 |
|| __need_XXX was not defined before */ |
