#include <iostream>
#include <fstream>

int main()
{
// zapis pieciu liczb double 3.14, 4.14, 5.14 ...
    try
    {
        std::ofstream file("out.txt", std::ios::binary);
        file.exceptions(std::ifstream::failbit | std::ifstream::badbit);

        for(int i = 0; i < 5; i++)
        {
            double pi = 3.14;
            pi += i;
            file.write( reinterpret_cast<char*>( &pi ), sizeof(pi));
        }
    }
    catch(std::ios_base::failure &fail)
    {
        std::cout << "Nie mozna zapisac pliku!" << std::endl
            << fail.what() << std::endl;
    }

    double x;

// odczyt tego samego pliku
    try
    {
        std::ifstream in("out.txt");
        in.exceptions(std::ifstream::failbit | std::ifstream::badbit);
        while(!in.eof())
        {
            in.read(reinterpret_cast<char*>(&x), sizeof(x));
            std::cout << x << std::endl;
        }
    }
    catch(std::ios_base::failure &fail)
    {
        // handle exception here
            std::cout << "Caught an exception: " << fail.what() << std::endl;
    }
}