File input, getting pointer position

[ozair]

Hi, I'm writing a program where I have to manipulate the stream pointer in an input file. I just wrote an testing program, I wanted to test if I get the right pointer position in a file where I have written few strings in a single line.

The contents of the file are "hello world foo(int) a=b".
The code is

#include <iostream>
using namespace std;

#include <fstream>

int main()
{
    ifstream Infile;
    char c;

    Infile.open("Input.txt");

    if (Infile.is_open())
    {
        Infile.seekg(0, ios::beg);

        while (!Infile.eof())
        {
            cout << Infile.tellg() << ' ';
            Infile.get(c);
            //cout << c;
        }
    }

    return 0;
}

The output of the program is
0 2 4 6 8 10 12 14 16 18 20 22 24 26

However, should'nt it be
0 1 2 3 4 5 6 7 8 9 10 11 12 13 and so on....

Because I am reading one character at a time and from what I know, the get(char) function also reads whitespaces and endlines...

I don't understand why the position pointer is being incremented by two..!?

Any clues?

[Duthomhas]

It is a failure of the STL streams class: they don't tellg() and seekg() properly in text mode. You can fix it by opening the file in binary mode:

    Infile.open("Input.txt", ios::binary);

Of course, you now have to deal with the possibility of extraneous '\r's in the input.