xref: /386bsd/usr/include/stddef.h (revision a2142627)
1 /*-
2  * Copyright (c) 1990 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)stddef.h	5.5 (Berkeley) 4/3/91
34  */
35 
36 #ifndef _STDDEF_H_
37 #define _STDDEF_H_
38 
39 #include <machine/ansi.h>
40 
41 #ifdef	_PTRDIFF_T_
42 typedef	_PTRDIFF_T_	ptrdiff_t;
43 #undef	_PTRDIFF_T_
44 #endif
45 
46 #ifdef	_SIZE_T_
47 typedef	_SIZE_T_	size_t;
48 #undef	_SIZE_T_
49 #endif
50 
51 #ifdef	_WCHAR_T_
52 #ifndef _ANSI_SOURCE
53 typedef	_WCHAR_T_	rune_t;
54 #endif
55 typedef	_WCHAR_T_	wchar_t;
56 #undef	_WCHAR_T_
57 #endif
58 
59 #ifndef	NULL
60 #define	NULL	0
61 #endif
62 
63 #define	offsetof(type, member)	((size_t)(&((type *)0)->member))
64 
65 #endif /* _STDDEF_H_ */
66