rb_define_singleton_method (c, "new", c_new, 1);
rb_define_method (c, "delete", c_delete, 0);
rb_define_method (c, "deleted?", c_deleted_get, 0);
rb_define_singleton_method (c, "new", c_new, 1);
rb_define_method (c, "delete", c_delete, 0);
rb_define_method (c, "deleted?", c_deleted_get, 0);