Can anyone help with 'Passing By Reference'

I'm trying to pass a 'name'

by using in main.cpp
Sometitlte->SetThe_Race_Name("XXXXX");

using my header "Ship.h"

class The_Race_Name

{
public:

int *x;



protected:


private:

string *RACE_NAME;

}


in Ship.cpp


void Vessel_Construction::DisplayStats()

{

cout