david/ipxe
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ipxe/src/include/stddef.h

35 lines
829 B
C

#ifndef STDDEF_H
#define STDDEF_H
FILE_LICENCE ( GPL2_ONLY );
/* for size_t */
#include <stdint.h>
#undef NULL
#define NULL ((void *)0)
#undef offsetof
#if ( defined ( __GNUC__ ) && ( __GNUC__ > 3 ) )
#define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
#else
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif
#undef container_of
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
/* __WCHAR_TYPE__ is defined by gcc and will change if -fshort-wchar is used */
#ifndef __WCHAR_TYPE__
#define __WCHAR_TYPE__ uint16_t
#endif
#ifndef __WINT_TYPE__
#define __WINT_TYPE__ int
#endif
typedef __WCHAR_TYPE__ wchar_t;
typedef __WINT_TYPE__ wint_t;
#endif /* STDDEF_H */