c++ - how do I cast pointers of user defined classes without using inheritance -

c++ - how do I cast pointers of user defined classes without using inheritance -

i have 2 user-defined classes:

class a:class base of operations { type x; dosomething(); } class b { type x; dosomething(); }

i have function gets variable of type base of operations , utilize dynamic_cast convert type , utilize dosomething().

class d : class base2 { d(base _base1):base2(base _base1) { //here actual problem } void foo() { //b private fellow member of class base2 of type base of operations *a=dynamic_cast(b); a->dosomething(); } }

but want pass b function ,and @ same time don't want b inherit base.

p.s don't have access alter base

how possible?

casting between unrelated classes in not safe. safest way accomplish think you're trying utilize function template:

template <typename t> void foo(const t& b) { b.dosomething(); }

c++ pointers inheritance casting