Re: [問題] cin >> 自訂類別物件
//新問題!!!
//code:
Class A{
public:
A();
~A();
friend istream& operator>>(istream& in, A& a){
in >> a._value;
return in;
}
friend ostream& operator<<(ostream& out, const A& a){
out << a._value;
return out;
}
private:
char* _name;
char* _value;
}
int main(){
A a();
cin >> a;
cout << a;
return 0;
}
//編譯錯誤訊息
//錯誤：ambiguous overload for 'operator>>' in 'std::cin >> a'
//警告：the address of `Collection a()', will always evaluate as `true'
--
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