#include <iostream>
#include <sstream>


class Log
{
public:
    Log() : os()
    {

    }

    ~Log()
    {
        fprintf(stderr, "%sn", os.str().c_str());
    }

    std::ostringstream &Write()
    {
        os << "from log class: " << 1337 << "t";

        return os;
    }

private:
    std::ostringstream os;
};

int main(int argc, char *argv[])
{
    Log().Write() << "Hello world " << 45;

    return 0;
}

class Log
{
public:
    // Myers singleton
    static Log & getLogger()
    {
        static Log theLog;
        return theLog;
    }
};