#include #include "../Person/Person.h" class Student : public Person { size_t fn = 0; public: Student() = default; Student(const char* name, int age, size_t fn); size_t getFn() const; void setFn(size_t fn); // No need for big 4, since there is NO dyn. memory in Student // The compiler will generate valid: //Student(const Student& other); //Student& operator=(const Student& other); //no need // ~Student() //See on the .cpp file how the compiler creates them };