initialize_copy

/* :nodoc: */
VALUE
rb_class_init_copy(clone, orig)
    VALUE clone, orig;
{
    if (RCLASS(clone)->super != 0) {
	rb_raise(rb_eTypeError, "already initialized class");
    }
    if (FL_TEST(orig, FL_SINGLETON)) {
	rb_raise(rb_eTypeError, "can't copy singleton class");
    }
    return rb_mod_init_copy(clone, orig);
}