#define OBJ_LIKE	(1-1)
#define OBJ_LIKE	/* white space */ (1-1) /* other */
#define FUNC_LIKE(a)	( a )
#define FUNC_LIKE( a )	( /* note the white space */ a /* other stuff on this line */ )
#define FUNC_LIKE( a )	( /* note the white space */ \
			a /* other stuff on this line
			*/ )
ok