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kernel/linux-rt-4.4.41/include/linux/stddef.h 581 Bytes
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  #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