... struct Class _Class;%initstatic const struct Class _Object = {{ MAGIC, & _Class }," ;Object& quot;, & _Object, sizeof(struct Object) , Object_ ctor, Object_ dtor, Object_ differ, Object_ puto};extern ... signal(SIGBUS, catch);#endifconst struct Object * self = isObject(_self);const struct Class * myClass = isObject(self —> class);if (class != Object) { isObject(class);while (myClass != class){ ... each object start with a magic number, i.e., to add acomponent .magic to the class description in Object. d:% Class Object {unsigned long magic; // magic numberconst Class @ class; // object s...