Line Endings in C++

reader.cc

/**
 * reader.cc -- demonstrate the inanity of line endings
 *
 * compile with
 *  g++ -Wall -ansi -pedantic reader.cc -o reader
 * run it with
 *  ./reader some_file.txt
 *
 * You can create Windows line endings in Vim with :se ff=dos and Unix files
 * with :se ff=unix (or run dos2unix and unix2dox on a text file).
 */
#include <string>
#include <stdlib.h>
#include <iostream>
#include <fstream>

using namespace std;

void chomp(string& str)
{
    string::size_type pos = str.find_last_not_of("\r\n");
    str.erase(pos + 1);
}

void read(char* filename)
{
    ifstream inputStream;
    inputStream.open(filename);

    if (!inputStream) {
        cerr << "Unable to open file" << endl;
        exit(1);
    }

    const int MAX_SIZE = 80;
    char buf[MAX_SIZE];

    while (inputStream.getline(buf, MAX_SIZE)) {
        string s = buf;

        // If we didn't chomp, the \r from Window's newlines (\r\n) would be
        // in our string
        chomp(s);

        cout << s << "EOL?" << endl;
    }

    cout << endl;
}

int main(int argc, char* argv[])
{
    if (argc != 2) {
        cerr << "Usage: ./reader FILE" << endl;
        exit(1);
    }

    read(argv[1]);

    return 0;
}