关于类模板对象如何值传递给全局函数?

template<class T>
int out_num(int n, int m, int s,SeqList<T> *sorted=NULL)
{
    while(sorted.Length()!=1)
    {
        cout<<"this is:"<<endl;
        cout<<1<<endl;
    }
    return 0;
}
//请帮忙改改