void test_friend_3_function() { C1 x; C2 y; x.set_status(IDLE); y.set_status(IDLE); if (x.idle(y)) cout << "Screen can be used.\n"; else cout << "In use.\n"; x.set_status(INUSE); if (x.idle(y)) cout << "Screen can be used.\n"; else cout << "In use.\n"; }
int main() { clrscr(); C1 x; C2 y; x.set_status(IDLE); y.set_status(IDLE); if(idle(x, y)) cout << "Screen can be used.\n"; else cout << "In use.\n"; x.set_status(INUSE); if(idle(x, y)) cout << "Screen can be used.\n"; else cout << "In use.\n"; getch(); return 0; }