OutputStreamHandler.h

#ifndef OUTPUTSTREAMHANDLER_H
#define OUTPUTSTREAMHANDLER_H

#include <iostream>
#include <string>

class OutputStreamHandler
{
    public:

        static OutputStreamHandler* instance();

        static void destroy();

        std::ostream& getOutputStream();

    private:

        // Private default constructor
        OutputStreamHandler(const std::string& filename);

        // Private destructor
        ~OutputStreamHandler();

        // Output stream
        std::ostream *m_p_output_stream = &std::cout;

        // Filename
        std::string m_filename;

        // Static instance
        static OutputStreamHandler* s_instance;
};

#endif // OUTPUTSTREAMHANDLER_H