我想问一些对我来说相当困难的事情;我必须制作一个日历类型的程序,但要使用重载的 '+=' 运算符。
所以它是这样的:
template<typename T1,typename T2,typename T3> //int,int,int
class T_sort_data{
T1 p1;
T2 p2;
T3 p3;
public:
T_sort_data(){
cout << "\n\t Constructed at [" << this << "]\n";};
/ friend ostream& operator<<(ostream& os,const T_sort_data& obj) // get function
{
os << "\nDay : " << obj.p1 << " \n";
os << "Month : " << obj.p2 << " \n";
os << "Year : " << obj.p3 << " \n";
return os;
}*/
void set_date(){
int dd,mm,yy;
cout << "\n\n\tPlease input the day, the month and the year : \n\n";
cin >> dd >> mm >> yy;
p1 = dd;
p2 = mm;
p3 = yy;
}
// validator here, which works ...
T_sort_data<int,int,int>& operator+=(const T_sort_data<int,int,int>& second)
{
p1+=second.p1;
return *this;
}
friend istream& operator>>(istream& is, T_sort_data& obj) // set function
{
is >> obj.p1;
is >> obj.p2;
is >> obj.p3;
return is;
}
~T_sort_data(){
cout << "\n\t Deconstructed [" << this << "]\n";};
};
int main(){
T_sort_data<int,int,int> * a = new T_sort_data<int,int,int> ;
bool more = true;
string answ;
a->set_date();
//cin >> a; (this doesn't work)
//validator goes here
//a += a; (this, again, doesn't work)
delete a;
return 0;
}
每当我使用“T_sort_data a;”制作对象时 这些操作工作正常,但每当我使用“T_sort_data * a = new T_sort_data;” 狗屎击中风扇。
谁能帮我这个?