stddef.h

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00001 #ifndef STDDEF_H
00002 #define STDDEF_H
00003 
00004 FILE_LICENCE ( GPL2_ONLY );
00005 
00006 /* for size_t */
00007 #include <stdint.h>
00008 
00009 #undef NULL
00010 #define NULL ((void *)0)
00011 
00012 #undef offsetof
00013 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
00014 
00015 #undef container_of
00016 #define container_of(ptr, type, member) ({                      \
00017         const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
00018         (type *)( (char *)__mptr - offsetof(type,member) );})
00019 
00020 /* __WCHAR_TYPE__ is defined by gcc and will change if -fshort-wchar is used */
00021 #ifndef __WCHAR_TYPE__
00022 #define __WCHAR_TYPE__ long int
00023 #endif
00024 typedef __WCHAR_TYPE__ wchar_t;
00025 
00026 #endif /* STDDEF_H */