Manipulate a string?

I am reading data from a file into a vector. The data is in a form of lastname, firstname. I need to switch it to be firstname lastname. Any clues on how I could do this? I have the program doing everything it needs to do, but this. This is a minor part of the program, but it looks ugly in it's present form. Any help would be appreciated. Thank you!

Difficult to say without knowing how your vector is used and how you read the strings from file.

Code:

---

fs>> lastname >> firstname;
v.push_back(firstname);
v.push_back(lastname);

---

...perhaps?

>Thank you!
No no, thank you.

the data is a list in a file. the data is a GPA then lastname.firstname.
(example)

3.57 Jones, Steve
2.91 Kramer, Bill


there are 2 vectors, one for the GPA's and the second is for the string. the string ends up being lastname, firstname.
the final output needs to be in firstname lastname

Code:

---

void main ()
{
vector<double> gpa;
vector<string> names;
float f;
string s;


                ifstream fin("input.txt");                   

        if (!fin)
        cerr << "error" << endl;

        while (!fin.eof())                              {
                       
                fin >> f;
        gpa.push_back(f);

        getline (fin, s);
        names.push_back(s);

        }
       
        ofstream fout("output.txt");                                       
        fout << "Original Inputted Information\n\n"; 
   
        for (int i = 0; i < gpa.size(); i++)
        fout << gpa[i] << "  " << names[i] << endl;

---

Code:

---

string firstname;
string lastname;

while (fin>> f) {
  fin>> lastname >> firstname;
  gpa.push_back(f);
  names.push_back(firstname + " " + lastname);
}

---

Tada!

Thank you. That is almost what I need. It points me in the right direction. The problem is that the output should be in the original form before the names are reversed. Thank you for your help.