xref: /freebsd/include/stddef.h (revision f0cfa1b168014f56c02b83e5f28412cc5f78d117)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  *	@(#)stddef.h	8.1 (Berkeley) 6/2/93
32  *
33  * $FreeBSD$
34  */
35 
36 #ifndef _STDDEF_H_
37 #define _STDDEF_H_
38 
39 #include <sys/cdefs.h>
40 #include <sys/_null.h>
41 #include <sys/_types.h>
42 
43 #ifndef _PTRDIFF_T_DECLARED
44 typedef	__ptrdiff_t	ptrdiff_t;
45 #define	_PTRDIFF_T_DECLARED
46 #endif
47 
48 #if __BSD_VISIBLE
49 #ifndef _RUNE_T_DECLARED
50 typedef	__rune_t	rune_t;
51 #define	_RUNE_T_DECLARED
52 #endif
53 #endif
54 
55 #ifndef _SIZE_T_DECLARED
56 typedef	__size_t	size_t;
57 #define	_SIZE_T_DECLARED
58 #endif
59 
60 #ifndef	__cplusplus
61 #ifndef _WCHAR_T_DECLARED
62 typedef	___wchar_t	wchar_t;
63 #define	_WCHAR_T_DECLARED
64 #endif
65 #endif
66 
67 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
68 #ifndef __CLANG_MAX_ALIGN_T_DEFINED
69 typedef	__max_align_t	max_align_t;
70 #define __CLANG_MAX_ALIGN_T_DEFINED
71 #define _GCC_MAX_ALIGN_T
72 #endif
73 #endif
74 
75 #define	offsetof(type, field)	__offsetof(type, field)
76 
77 #if __EXT1_VISIBLE
78 /* ISO/IEC 9899:2011 K.3.3.2 */
79 #ifndef _RSIZE_T_DEFINED
80 #define _RSIZE_T_DEFINED
81 typedef size_t rsize_t;
82 #endif
83 #endif /* __EXT1_VISIBLE */
84 
85 #endif /* _STDDEF_H_ */
86