trying to ifstream from a cin...

Question

if (schc == "cal"){
system("cls");
string calus, calpa, calfi, calline;
cout << "\t Type the DomainID.datc(ex: Youtube.datc) to get its credentials: \n";
cin >> calfi;

ifstream calfic( calfi );
// problem is here ^^^^
if (!calfic){
cout << calfi << ' ' << "doesn't exist. \n";
refuse();
returntohome();
}

for (int y = 0; getline(calfic, calline) && y < 2; y++){
switch(y){
case 1:
cout << "Your username for " << calfi << " is : " << calline;
break;
case 2:
cout << "Your password for " << calfi << " is : " << calline;
break;
cin.get();
returntohome();

}
}

i can't manage to read data using ifstream from a user-specified file with cin >>;
Any suggestions?
I'm kind of a newbie

Answer 1

if (schc == "cal"){
system("cls");
string fnm, lime;
cin >> fnm;

ifstream fin(fnm.c_str());
if (!fin){
cout << fnm << ' ' << "doesn't exist. \n";
refuse();
returntohome();
}
for (int y = 1; getline(fin, lime) && y <= 2; y++){
switch(y){
case 1:
cout << "Your username is: " << lime << endl;
break;
case 2:
cout << "Your password is: " << lime << endl;
break;
}
}

Answer 2

Found this to be working in my case. No more need for help c:
ystem("cls");
string fnm, lime;
cin >> fnm;

ifstream fin(fnm.c_str());
if (!fin){
cout << fnm << ' ' << "doesn't exist. \n";
refuse();
returntohome();
}