vector??

can someone show me how to use vector to read .txt files.

The simple way to do this but avoid istream_iterators is to read a line with std::getline into a std::string then simply push_back that string into a std::vector.Do that in a loop until you have nothing left in the file.

Better yet, push back an empty string and getline into that string.

Code:

---

fstream file;
string fS;
vector<string> vS;
file.open("in.txt", ios::in);
while(!file.eof())
{
    getline(file, fS, '\n');
    vS.push_back(fS);
}

---

It's not a good thing to use eof() to control a loop.

Code:

---

fstream file;
string fS;
vector<string> vS;
file.open("in.txt", ios::in);
while(getline(file, fS, '\n'))
{
    vS.push_back(fS);
}

---

does the same thing. i think...

It sure does. And the reason is that eof is not set until you pass the end of file so it is safer to read until you reading fails.