/**

 * cppdatabase.cc

 * Copyright (C) 2009 Markus Broeker

 *

 * stores data in a file and retrieves it back

 */

#include <cstdlib>

#include <iostream>

#include <fstream>

#define DB_FILE "/tmp/test.dat"

struct Person {

    char lastname[80];

    char firstname[80];

    char position[80];

};

void make_db_entry (std::ofstream& out, struct Person& p)

{

    out.write ((char *)&p, sizeof (Person));

}

void read_db_entry (std::ifstream& in)

{

    std::cout << "clear eof" << std::endl;

    in.clear ();

    std::cout << "seek status: " << in.seekg (0, std::ios::beg) <<

        std::endl << std::endl;

    struct Person p;

    while ((in.read ((char *)&p, sizeof (Person))) != NULL) {

        std::cout << p.lastname << ", " << p.firstname << ", " <<

            p.position << std::endl;

    }

}

using namespace std;

int main ()

{

    struct Person p[] = {

        {"Ribery", "Franck", "Midfielder"},

        {"Lahm", "Phillip", "Defender"},

        {"Toni", "Luca", "Striker"},

        {"Klose", "Miroslav", "Striker"},

    };

    ifstream in;

    ofstream out;

    out.open (DB_FILE, ios::binary);

    if (!out) {

        cout << "Outputfile Error " << DB_FILE << endl;

        return EXIT_FAILURE;

    }

    for (unsigned int i = 0; i < sizeof (p) / sizeof (Person); i++) {

        make_db_entry (out, p[i]);

    }

    out.close ();

    in.open (DB_FILE);

    if (!in) {

        cout << "Inputfile Error " << DB_FILE << endl;

        return EXIT_FAILURE;

    }

    read_db_entry (in);

    read_db_entry (in);

    in.close ();

    return EXIT_SUCCESS;

}