dynamic_cast的错误。求教高手啊,小弟就剩10分了。。救救小弟
#include<iostream>
using namespace std;
class Widget{
virtual void out(){cout<<"Widget"<<endl;}
};
class SpecialWidget:public Widget{
virtual void out(){cout<<"SpecialWidget"<<endl;}
};
void main(){
Widget *pw;
dynamic_cast<SpecialWidget*>(pw);
}
运行时报错:abnormal program termination