#ifndef DERIVED_H #define DERIVED_H #include #include "base.h" using namespace std; class derived: public base { int d; public: derived(int init_b, int init_d): base {init_b}, d {init_d} {} ostream& print(ostream& ost) const override { //bigger & better print return base::print(ost) << " " << d; } }; #endif