| 1 | #include_next <stddef.h>
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| 2 | /* Copyright (C) 1989-2021 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is part of GCC.
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| 5 |
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| 6 | GCC is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 3, or (at your option)
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| 9 | any later version.
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| 10 |
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| 11 | GCC is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | Under Section 7 of GPL version 3, you are granted additional
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| 17 | permissions described in the GCC Runtime Library Exception, version
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| 18 | 3.1, as published by the Free Software Foundation.
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| 19 |
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| 20 | You should have received a copy of the GNU General Public License and
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| 21 | a copy of the GCC Runtime Library Exception along with this program;
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| 22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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| 23 | <http://www.gnu.org/licenses/>. */
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| 24 |
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| 25 | /*
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| 26 | * ISO C Standard: 7.17 Common definitions <stddef.h>
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| 27 | */
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| 28 | #if (!defined(_STDDEF_H) && !defined(_STDDEF_H_) && !defined(_ANSI_STDDEF_H) \
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| 29 | && !defined(__STDDEF_H__)) \
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| 30 | || defined(__need_wchar_t) || defined(__need_size_t) \
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| 31 | || defined(__need_ptrdiff_t) || defined(__need_NULL) \
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| 32 | || defined(__need_wint_t)
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| 33 |
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| 34 | /* Any one of these symbols __need_* means that GNU libc
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| 35 | wants us just to define one data type. So don't define
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| 36 | the symbols that indicate this file's entire job has been done. */
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| 37 | #if (!defined(__need_wchar_t) && !defined(__need_size_t) \
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| 38 | && !defined(__need_ptrdiff_t) && !defined(__need_NULL) \
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| 39 | && !defined(__need_wint_t))
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| 40 | #define _STDDEF_H
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| 41 | #define _STDDEF_H_
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| 42 | /* snaroff@next.com says the NeXT needs this. */
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| 43 | #define _ANSI_STDDEF_H
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| 44 | #endif
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| 45 |
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| 46 | #ifndef __sys_stdtypes_h
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| 47 | /* This avoids lossage on SunOS but only if stdtypes.h comes first.
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| 48 | There's no way to win with the other order! Sun lossage. */
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| 49 |
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| 50 | #if defined(__NetBSD__)
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| 51 | #include <machine/ansi.h>
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| 52 | #endif
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| 53 |
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| 54 | #if defined (__FreeBSD__)
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| 55 | #include <sys/_types.h>
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| 56 | #endif
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| 57 |
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| 58 | #if defined(__NetBSD__)
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| 59 | #if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_)
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| 60 | #define _SIZE_T
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| 61 | #endif
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| 62 | #if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_)
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| 63 | #define _PTRDIFF_T
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| 64 | #endif
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| 65 | /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
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| 66 | instead of _WCHAR_T_. */
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| 67 | #if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_)
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| 68 | #ifndef _BSD_WCHAR_T_
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| 69 | #define _WCHAR_T
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| 70 | #endif
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| 71 | #endif
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| 72 | /* Undef _FOO_T_ if we are supposed to define foo_t. */
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| 73 | #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_)
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| 74 | #undef _PTRDIFF_T_
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| 75 | #undef _BSD_PTRDIFF_T_
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| 76 | #endif
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| 77 | #if defined (__need_size_t) || defined (_STDDEF_H_)
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| 78 | #undef _SIZE_T_
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| 79 | #undef _BSD_SIZE_T_
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| 80 | #endif
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| 81 | #if defined (__need_wchar_t) || defined (_STDDEF_H_)
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| 82 | #undef _WCHAR_T_
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| 83 | #undef _BSD_WCHAR_T_
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| 84 | #endif
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| 85 | #endif /* defined(__NetBSD__) */
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| 86 |
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| 87 | /* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
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| 88 | Just ignore it. */
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| 89 | #if defined (__sequent__) && defined (_PTRDIFF_T_)
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| 90 | #undef _PTRDIFF_T_
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| 91 | #endif
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| 92 |
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| 93 | /* On VxWorks, <type/vxTypesBase.h> may have defined macros like
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| 94 | _TYPE_size_t which will typedef size_t. fixincludes patched the
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| 95 | vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
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| 96 | not defined, and so that defining this macro defines _GCC_SIZE_T.
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| 97 | If we find that the macros are still defined at this point, we must
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| 98 | invoke them so that the type is defined as expected. */
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| 99 | #if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_))
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| 100 | _TYPE_ptrdiff_t;
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| 101 | #undef _TYPE_ptrdiff_t
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| 102 | #endif
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| 103 | #if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_))
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| 104 | _TYPE_size_t;
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| 105 | #undef _TYPE_size_t
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| 106 | #endif
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| 107 | #if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_))
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| 108 | _TYPE_wchar_t;
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| 109 | #undef _TYPE_wchar_t
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| 110 | #endif
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| 111 |
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| 112 | /* In case nobody has defined these types, but we aren't running under
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| 113 | GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and
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| 114 | __WCHAR_TYPE__ have reasonable values. This can happen if the
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| 115 | parts of GCC is compiled by an older compiler, that actually
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| 116 | include gstddef.h, such as collect2. */
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| 117 |
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| 118 | /* Signed type of difference of two pointers. */
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| 119 |
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| 120 | /* Define this type if we are doing the whole job,
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| 121 | or if we want this type in particular. */
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| 122 | #if defined (_STDDEF_H) || defined (__need_ptrdiff_t)
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| 123 | #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */
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| 124 | #ifndef _T_PTRDIFF_
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| 125 | #ifndef _T_PTRDIFF
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| 126 | #ifndef __PTRDIFF_T
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| 127 | #ifndef _PTRDIFF_T_
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| 128 | #ifndef _BSD_PTRDIFF_T_
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| 129 | #ifndef ___int_ptrdiff_t_h
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| 130 | #ifndef _GCC_PTRDIFF_T
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| 131 | #ifndef _PTRDIFF_T_DECLARED /* DragonFly */
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| 132 | #define _PTRDIFF_T
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| 133 | #define _T_PTRDIFF_
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| 134 | #define _T_PTRDIFF
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| 135 | #define __PTRDIFF_T
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| 136 | #define _PTRDIFF_T_
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| 137 | #define _BSD_PTRDIFF_T_
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| 138 | #define ___int_ptrdiff_t_h
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| 139 | #define _GCC_PTRDIFF_T
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| 140 | #define _PTRDIFF_T_DECLARED
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| 141 | #ifndef __PTRDIFF_TYPE__
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| 142 | #define __PTRDIFF_TYPE__ long int
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| 143 | #endif
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| 144 | typedef __PTRDIFF_TYPE__ ptrdiff_t;
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| 145 | #endif /* _PTRDIFF_T_DECLARED */
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| 146 | #endif /* _GCC_PTRDIFF_T */
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| 147 | #endif /* ___int_ptrdiff_t_h */
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| 148 | #endif /* _BSD_PTRDIFF_T_ */
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| 149 | #endif /* _PTRDIFF_T_ */
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| 150 | #endif /* __PTRDIFF_T */
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| 151 | #endif /* _T_PTRDIFF */
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| 152 | #endif /* _T_PTRDIFF_ */
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| 153 | #endif /* _PTRDIFF_T */
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| 154 |
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| 155 | /* If this symbol has done its job, get rid of it. */
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| 156 | #undef __need_ptrdiff_t
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| 157 |
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| 158 | #endif /* _STDDEF_H or __need_ptrdiff_t. */
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| 159 |
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| 160 | /* Unsigned type of `sizeof' something. */
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| 161 |
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| 162 | /* Define this type if we are doing the whole job,
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| 163 | or if we want this type in particular. */
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| 164 | #if defined (_STDDEF_H) || defined (__need_size_t)
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| 165 | #ifndef __size_t__ /* BeOS */
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| 166 | #ifndef __SIZE_T__ /* Cray Unicos/Mk */
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| 167 | #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */
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| 168 | #ifndef _SYS_SIZE_T_H
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| 169 | #ifndef _T_SIZE_
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| 170 | #ifndef _T_SIZE
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| 171 | #ifndef __SIZE_T
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| 172 | #ifndef _SIZE_T_
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| 173 | #ifndef _BSD_SIZE_T_
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| 174 | #ifndef _SIZE_T_DEFINED_
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| 175 | #ifndef _SIZE_T_DEFINED
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| 176 | #ifndef _BSD_SIZE_T_DEFINED_ /* Darwin */
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| 177 | #ifndef _SIZE_T_DECLARED /* FreeBSD 5 */
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| 178 | #ifndef ___int_size_t_h
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| 179 | #ifndef _GCC_SIZE_T
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| 180 | #ifndef _SIZET_
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| 181 | #ifndef __size_t
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| 182 | #define __size_t__ /* BeOS */
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| 183 | #define __SIZE_T__ /* Cray Unicos/Mk */
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| 184 | #define _SIZE_T
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| 185 | #define _SYS_SIZE_T_H
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| 186 | #define _T_SIZE_
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| 187 | #define _T_SIZE
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| 188 | #define __SIZE_T
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| 189 | #define _SIZE_T_
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| 190 | #define _BSD_SIZE_T_
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| 191 | #define _SIZE_T_DEFINED_
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| 192 | #define _SIZE_T_DEFINED
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| 193 | #define _BSD_SIZE_T_DEFINED_ /* Darwin */
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| 194 | #define _SIZE_T_DECLARED /* FreeBSD 5 */
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| 195 | #define ___int_size_t_h
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| 196 | #define _GCC_SIZE_T
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| 197 | #define _SIZET_
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| 198 | #if defined (__FreeBSD__) \
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| 199 | || defined(__DragonFly__) \
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| 200 | || defined(__FreeBSD_kernel__) \
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| 201 | || defined(__VMS__)
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| 202 | /* __size_t is a typedef, must not trash it. */
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| 203 | #else
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| 204 | #define __size_t
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| 205 | #endif
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| 206 | #ifndef __SIZE_TYPE__
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| 207 | #define __SIZE_TYPE__ long unsigned int
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| 208 | #endif
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| 209 | #if !(defined (__GNUG__) && defined (size_t))
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| 210 | typedef __SIZE_TYPE__ size_t;
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| 211 | #ifdef __BEOS__
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| 212 | typedef long ssize_t;
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| 213 | #endif /* __BEOS__ */
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| 214 | #endif /* !(defined (__GNUG__) && defined (size_t)) */
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| 215 | #endif /* __size_t */
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| 216 | #endif /* _SIZET_ */
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| 217 | #endif /* _GCC_SIZE_T */
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| 218 | #endif /* ___int_size_t_h */
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| 219 | #endif /* _SIZE_T_DECLARED */
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| 220 | #endif /* _BSD_SIZE_T_DEFINED_ */
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| 221 | #endif /* _SIZE_T_DEFINED */
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| 222 | #endif /* _SIZE_T_DEFINED_ */
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| 223 | #endif /* _BSD_SIZE_T_ */
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| 224 | #endif /* _SIZE_T_ */
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| 225 | #endif /* __SIZE_T */
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| 226 | #endif /* _T_SIZE */
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| 227 | #endif /* _T_SIZE_ */
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| 228 | #endif /* _SYS_SIZE_T_H */
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| 229 | #endif /* _SIZE_T */
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| 230 | #endif /* __SIZE_T__ */
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| 231 | #endif /* __size_t__ */
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| 232 | #undef __need_size_t
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| 233 | #endif /* _STDDEF_H or __need_size_t. */
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| 234 |
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| 235 |
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| 236 | /* Wide character type.
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| 237 | Locale-writers should change this as necessary to
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| 238 | be big enough to hold unique values not between 0 and 127,
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| 239 | and not (wchar_t) -1, for each defined multibyte character. */
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| 240 |
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| 241 | /* Define this type if we are doing the whole job,
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| 242 | or if we want this type in particular. */
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| 243 | #if defined (_STDDEF_H) || defined (__need_wchar_t)
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| 244 | #ifndef __wchar_t__ /* BeOS */
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| 245 | #ifndef __WCHAR_T__ /* Cray Unicos/Mk */
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| 246 | #ifndef _WCHAR_T
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| 247 | #ifndef _T_WCHAR_
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| 248 | #ifndef _T_WCHAR
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| 249 | #ifndef __WCHAR_T
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| 250 | #ifndef _WCHAR_T_
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| 251 | #ifndef _BSD_WCHAR_T_
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| 252 | #ifndef _BSD_WCHAR_T_DEFINED_ /* Darwin */
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| 253 | #ifndef _BSD_RUNE_T_DEFINED_ /* Darwin */
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| 254 | #ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */
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| 255 | #ifndef _WCHAR_T_DEFINED_
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| 256 | #ifndef _WCHAR_T_DEFINED
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| 257 | #ifndef _WCHAR_T_H
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| 258 | #ifndef ___int_wchar_t_h
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| 259 | #ifndef __INT_WCHAR_T_H
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| 260 | #ifndef _GCC_WCHAR_T
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| 261 | #define __wchar_t__ /* BeOS */
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| 262 | #define __WCHAR_T__ /* Cray Unicos/Mk */
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| 263 | #define _WCHAR_T
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| 264 | #define _T_WCHAR_
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| 265 | #define _T_WCHAR
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| 266 | #define __WCHAR_T
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| 267 | #define _WCHAR_T_
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| 268 | #define _BSD_WCHAR_T_
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| 269 | #define _WCHAR_T_DEFINED_
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| 270 | #define _WCHAR_T_DEFINED
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| 271 | #define _WCHAR_T_H
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| 272 | #define ___int_wchar_t_h
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| 273 | #define __INT_WCHAR_T_H
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| 274 | #define _GCC_WCHAR_T
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| 275 | #define _WCHAR_T_DECLARED
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| 276 |
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| 277 | /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
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| 278 | instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
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| 279 | symbols in the _FOO_T_ family, stays defined even after its
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| 280 | corresponding type is defined). If we define wchar_t, then we
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| 281 | must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
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| 282 | we undef _WCHAR_T_, then we must also define rune_t, since
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| 283 | headers like runetype.h assume that if machine/ansi.h is included,
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| 284 | and _BSD_WCHAR_T_ is not defined, then rune_t is available.
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| 285 | machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
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| 286 | the same type." */
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| 287 | #ifdef _BSD_WCHAR_T_
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| 288 | #undef _BSD_WCHAR_T_
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| 289 | #ifdef _BSD_RUNE_T_
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| 290 | #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
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| 291 | typedef _BSD_RUNE_T_ rune_t;
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| 292 | #define _BSD_WCHAR_T_DEFINED_
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| 293 | #define _BSD_RUNE_T_DEFINED_ /* Darwin */
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| 294 | #if defined (__FreeBSD__) && (__FreeBSD__ < 5)
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| 295 | /* Why is this file so hard to maintain properly? In contrast to
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| 296 | the comment above regarding BSD/386 1.1, on FreeBSD for as long
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| 297 | as the symbol has existed, _BSD_RUNE_T_ must not stay defined or
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| 298 | redundant typedefs will occur when stdlib.h is included after this file. */
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| 299 | #undef _BSD_RUNE_T_
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| 300 | #endif
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| 301 | #endif
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| 302 | #endif
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| 303 | #endif
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| 304 | /* FreeBSD 5 can't be handled well using "traditional" logic above
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| 305 | since it no longer defines _BSD_RUNE_T_ yet still desires to export
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| 306 | rune_t in some cases... */
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| 307 | #if defined (__FreeBSD__) && (__FreeBSD__ >= 5)
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| 308 | #if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
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| 309 | #if __BSD_VISIBLE
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| 310 | #ifndef _RUNE_T_DECLARED
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| 311 | typedef __rune_t rune_t;
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| 312 | #define _RUNE_T_DECLARED
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| 313 | #endif
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| 314 | #endif
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| 315 | #endif
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| 316 | #endif
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| 317 |
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| 318 | #ifndef __WCHAR_TYPE__
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| 319 | #define __WCHAR_TYPE__ int
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| 320 | #endif
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| 321 | #ifndef __cplusplus
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| 322 | typedef __WCHAR_TYPE__ wchar_t;
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| 323 | #endif
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| 324 | #endif
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| 325 | #endif
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| 326 | #endif
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| 327 | #endif
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| 328 | #endif
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| 329 | #endif
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| 330 | #endif /* _WCHAR_T_DECLARED */
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| 331 | #endif /* _BSD_RUNE_T_DEFINED_ */
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| 332 | #endif
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| 333 | #endif
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| 334 | #endif
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| 335 | #endif
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| 336 | #endif
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| 337 | #endif
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| 338 | #endif
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| 339 | #endif /* __WCHAR_T__ */
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| 340 | #endif /* __wchar_t__ */
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| 341 | #undef __need_wchar_t
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| 342 | #endif /* _STDDEF_H or __need_wchar_t. */
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| 343 |
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| 344 | #if defined (__need_wint_t)
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| 345 | #ifndef _WINT_T
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| 346 | #define _WINT_T
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| 347 |
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| 348 | #ifndef __WINT_TYPE__
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| 349 | #define __WINT_TYPE__ unsigned int
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| 350 | #endif
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| 351 | typedef __WINT_TYPE__ wint_t;
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| 352 | #endif
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| 353 | #undef __need_wint_t
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| 354 | #endif
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| 355 |
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| 356 | #if defined(__NetBSD__)
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| 357 | /* The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_
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| 358 | are probably typos and should be removed before 2.8 is released. */
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| 359 | #ifdef _GCC_PTRDIFF_T_
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| 360 | #undef _PTRDIFF_T_
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| 361 | #undef _BSD_PTRDIFF_T_
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| 362 | #endif
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| 363 | #ifdef _GCC_SIZE_T_
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| 364 | #undef _SIZE_T_
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| 365 | #undef _BSD_SIZE_T_
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| 366 | #endif
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| 367 | #ifdef _GCC_WCHAR_T_
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| 368 | #undef _WCHAR_T_
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| 369 | #undef _BSD_WCHAR_T_
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| 370 | #endif
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| 371 | /* The following ones are the real ones. */
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| 372 | #ifdef _GCC_PTRDIFF_T
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| 373 | #undef _PTRDIFF_T_
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| 374 | #undef _BSD_PTRDIFF_T_
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| 375 | #endif
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| 376 | #ifdef _GCC_SIZE_T
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| 377 | #undef _SIZE_T_
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| 378 | #undef _BSD_SIZE_T_
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| 379 | #endif
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| 380 | #ifdef _GCC_WCHAR_T
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| 381 | #undef _WCHAR_T_
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| 382 | #undef _BSD_WCHAR_T_
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| 383 | #endif
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| 384 | #endif /* __NetBSD__ */
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| 385 |
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| 386 | #endif /* __sys_stdtypes_h */
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| 387 |
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| 388 | /* A null pointer constant. */
|
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| 389 |
|
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| 390 | #if defined (_STDDEF_H) || defined (__need_NULL)
|
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| 391 | #undef NULL /* in case <stdio.h> has defined it. */
|
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| 392 | #ifdef __GNUG__
|
|---|
| 393 | #define NULL __null
|
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| 394 | #else /* G++ */
|
|---|
| 395 | #ifndef __cplusplus
|
|---|
| 396 | #define NULL ((void *)0)
|
|---|
| 397 | #else /* C++ */
|
|---|
| 398 | #define NULL 0
|
|---|
| 399 | #endif /* C++ */
|
|---|
| 400 | #endif /* G++ */
|
|---|
| 401 | #endif /* NULL not defined and <stddef.h> or need NULL. */
|
|---|
| 402 | #undef __need_NULL
|
|---|
| 403 |
|
|---|
| 404 | #ifdef _STDDEF_H
|
|---|
| 405 |
|
|---|
| 406 | /* Offset of member MEMBER in a struct of type TYPE. */
|
|---|
| 407 | #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
|
|---|
| 408 |
|
|---|
| 409 | #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
|
|---|
| 410 | || (defined(__cplusplus) && __cplusplus >= 201103L)
|
|---|
| 411 | #ifndef _GCC_MAX_ALIGN_T
|
|---|
| 412 | #define _GCC_MAX_ALIGN_T
|
|---|
| 413 | /* Type whose alignment is supported in every context and is at least
|
|---|
| 414 | as great as that of any standard type not using alignment
|
|---|
| 415 | specifiers. */
|
|---|
| 416 | typedef struct {
|
|---|
| 417 | long long __max_align_ll __attribute__((__aligned__(__alignof__(long long))));
|
|---|
| 418 | long double __max_align_ld __attribute__((__aligned__(__alignof__(long double))));
|
|---|
| 419 | /* _Float128 is defined as a basic type, so max_align_t must be
|
|---|
| 420 | sufficiently aligned for it. This code must work in C++, so we
|
|---|
| 421 | use __float128 here; that is only available on some
|
|---|
| 422 | architectures, but only on i386 is extra alignment needed for
|
|---|
| 423 | __float128. */
|
|---|
| 424 | #ifdef __i386__
|
|---|
| 425 | __float128 __max_align_f128 __attribute__((__aligned__(__alignof(__float128))));
|
|---|
| 426 | #endif
|
|---|
| 427 | } max_align_t;
|
|---|
| 428 | #endif
|
|---|
| 429 | #endif /* C11 or C++11. */
|
|---|
| 430 |
|
|---|
| 431 | #if defined(__cplusplus) && __cplusplus >= 201103L
|
|---|
| 432 | #ifndef _GXX_NULLPTR_T
|
|---|
| 433 | #define _GXX_NULLPTR_T
|
|---|
| 434 | typedef decltype(nullptr) nullptr_t;
|
|---|
| 435 | #endif
|
|---|
| 436 | #endif /* C++11. */
|
|---|
| 437 |
|
|---|
| 438 | #endif /* _STDDEF_H was defined this time */
|
|---|
| 439 |
|
|---|
| 440 | #endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__
|
|---|
| 441 | || __need_XXX was not defined before */
|
|---|
