Generic Log

// GenericLog.h
#include <fstream>
#include <string>

class GenericLog
{
    public:
        GenericLog( const std::string& filename = "log.txt" );

        template< typename T >
        GenericLog& operator << ( const T& t )
        {
            std::cout << t;
            file << t;

            return ( * this );
        }

    private:
        std::fstream file;
};

// GenericLog.cpp
GenericLog::GenericLog( const std::string& filename )
{
    // Create the file first :P
    file.open( filename, std::fstream::out | std::fstream::app );
}