#include "diary2.h" using namespace std; diary::diary( char *e, int y, int m, int d) : date(y,m,d), event(e) { } diary::diary( char *d, char *e) : date(d), event(e) { } diary::diary( date dd, char *e) : date(dd), event(e) { } void diary::print( ostream& os) const { /* const list *lp = this; // still polymorph list l = *this; // no cpy constr or operator= const date *dp = this; os << *lp << ", "; os << *dp << ", "; os << event; */ list::print(os); // os << ", " << list(*this); no cpy constr os << ", " << date(*this); os << ", " << event; } ostream& operator<<( ostream& os, const diary& d) { d.print(os); return os; }