https://github.com/torvalds/linux
Raw File
Tip revision: 4f7d029b9bf009fbee76bb10c0c4351a1870d2f3 authored by Linus Torvalds on 16 April 2017, 20:00:18 UTC
Linux 4.11-rc7
Tip revision: 4f7d029
stddef.h
#ifndef _LINUX_STDDEF_H
#define _LINUX_STDDEF_H

#include <uapi/linux/stddef.h>

#undef NULL
#define NULL ((void *)0)

enum {
	false	= 0,
	true	= 1
};

#undef offsetof
#ifdef __compiler_offsetof
#define offsetof(TYPE, MEMBER)	__compiler_offsetof(TYPE, MEMBER)
#else
#define offsetof(TYPE, MEMBER)	((size_t)&((TYPE *)0)->MEMBER)
#endif

/**
 * offsetofend(TYPE, MEMBER)
 *
 * @TYPE: The type of the structure
 * @MEMBER: The member within the structure to get the end offset of
 */
#define offsetofend(TYPE, MEMBER) \
	(offsetof(TYPE, MEMBER)	+ sizeof(((TYPE *)0)->MEMBER))

#endif
back to top