source: trunk/minix/include/stddef.h@ 10

Last change on this file since 10 was 9, checked in by Mattia Monga, 13 years ago

Minix 3.1.2a

File size: 656 bytes
RevLine 
[9]1/* The <stddef.h> header defines certain commonly used macros. */
2
3#ifndef _STDDEF_H
4#define _STDDEF_H
5
6#define NULL ((void *)0)
7
8/* The following is not portable, but the compiler accepts it. */
9#define offsetof(type, ident) ((size_t) (unsigned long) &((type *)0)->ident)
10
11#if _EM_PSIZE == _EM_WSIZE
12typedef int ptrdiff_t; /* result of subtracting two pointers */
13#else /* _EM_PSIZE == _EM_LSIZE */
14typedef long ptrdiff_t;
15#endif
16
17#ifndef _SIZE_T
18#define _SIZE_T
19typedef unsigned int size_t; /* type returned by sizeof */
20#endif
21
22#ifndef _WCHAR_T
23#define _WCHAR_T
24typedef char wchar_t; /* type expanded character set */
25#endif
26
27#endif /* _STDDEF_H */
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