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