File:  [Qemu by Fabrice Bellard] / qemu / roms / ipxe / src / include / stddef.h
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:58:22 2018 UTC (8 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1101, qemu1001, qemu1000, qemu0151, HEAD
qemu 0.15.1

#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__ long int
#endif
typedef __WCHAR_TYPE__ wchar_t;

#endif /* STDDEF_H */

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