Modifying member variable doesn't change its reference despite being pointed to

[darkrage14]

I am currently working Risk project and I'm having trouble changing the value of a specific Country instance within my Reinforcement Class. I have a pointer variable that points to its address so shouldn't it change when I modify the pointer variable? Could it be because of the copy constructor? I'm a c++ newbie so I'm not sure what the problem is.

//reinforcement.h
Reinforcement(vector<Country>& thelist);
//other 
private:
Country * chosencountry;
vector<Country> listofcountries
void choosecountry();
void placearmy();


//reinforcement.cpp
Reinforcement (vector<Country> &thelist){
   this->listofcountries=thelist;
}
void choose country() {
 //stuff
chosencountry=&listofcountries[index];
}
void placearmy() {
chosencountry.setArmy(n);//n obtained through calculations


//country.h
void setArmy(int n){army=n);
Country (Country &obj)//copy constructor
int getarmy() {return army;);


//main

vector<Country> countries
Reinforcement rein(countries)
rein.choosecountry();
rein.placearmy();

[Peter87]

Each Reinforcement stores its own copy of the Country list.

[Jaybob66]

as Peter87 says, it happens at line 13.

because you assign the vector in your constructor you could change line 6 to be a reference and use an initializer list.

private:
vector<Country>& listofcountries;

public:
Reinforcement (vector<Country> &thelist)
   listofcountries(thelist)
{
}

oh, and you dont need to prefix this-> when accessing members, that is implied.