trouble reading from a text file

[rookie123]

hello everyone
I tried to read in a file that contain studentId(8 integer long) and GPA in the same line separated by a comma, but I couldn't. Any help is appriciated
example: 145453565, 4.0
34344443, 3.9
23454345, 3.4
12345678, 3.4

void studentRecord::loading(string filename)
{
ifstream infile;
int studentId;
double GPA;

string temp;
infile.open(filename.c_str());

if(!infile.is_open() )
{
cout << "ERROr" << endl;
return;
}
while(!infile.eof())
{
getline(infile, temp);
int pos = temp.find(',');
temp.substr(0, pos);
temp >> studentId;
temp.substr(pos, temp.size())
temp >> GPA;

}

}

[Yanson]

Please use code tags.
http://www.cplusplus.com/articles/jEywvCM9/
http://www.cplusplus.com/articles/z13hAqkS/

stringstream ss;

while(getline(infile, temp, ',') && getline(infile, temp2))
 {
    ss << temp;
    ss >> studentId;
    ss << temp2;
    ss >> GPA;
 
}

[rookie123]

thank you

[rookie123]

hi, I tried your code and it seems like it only read one top of the line
my file contains
24543544, 4.0
43523454, 3.9
and the output is 24543455 4.0