#ifndef __LIB_STDDEF_H #define __LIB_STDDEF_H #define NULL ((void *) 0) #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) /* GCC predefines the types we need for ptrdiff_t and size_t, so that we don't have to guess. */ typedef __PTRDIFF_TYPE__ ptrdiff_t; typedef __SIZE_TYPE__ size_t; #endif /* lib/stddef.h */