Question

I have this class:

class user
{
private:
    string userid;
    string password;
public:
    user(){};
    user(string a, string b){userid = a; password = b;}
    ~user(){cout<<"Trace";};
    void    print ( ostream& out );
};

Every time I try to append to my queue this way aqueue.append(user(userid, password); it will append to my queue but it will call the destructor afterwards. The queue is a basic generic linked list pointing to the next cell. My question is: how to add to a class to a queue with out calling the destructor each time?

Answer 1

Store pointers (e.g. raw pointers, std::auto_ptr, std::unique_ptr) to the objects you wish to store, rather than the objects themselves.