Added documentation to Logger.

      return this->writtenElements;

   }

   /// \brief Function that gets elements from given file.

   /// \brief Method that can write particular data type from given file into GPU. (Function that gets particular elements from given file.)

   ///

   /// Returns boolean value based on the succes in reading elements from given file.

   /// \param buffer Pointer in memory.

   template< typename Type, typename Device = Devices::Host >

   bool read( Type* buffer );

   /// \brief Function that writes elements into given file.

   /// \brief Method that can write particular data type from CPU into given file. (Function that writes particular elements into given file.)

   ///

   /// Returns boolean value based on the succes in writing elements into given file.

   /// \param buffer Pointer in memory.

{

   public:

   /// \brief Basic constructor.

   ///

   /// \param _width Integer that defines the width of logger.

   /// \param _stream Where to create the logger, e.g. cout or a certain file.s

   Logger( int _width,

              std::ostream& _stream );

   /// \brief Creates header in given logger.

   ///

   /// \param title String desribing the title/header.

   void writeHeader( const String& title );

   /// \brief Creates predefined separator - structure in the logger.

   void writeSeparator();

   /// \brief Inserts information about system parameters into logger.

   ///

   /// \param parameters

   bool writeSystemInformation( const Config::ParameterContainer& parameters );

   /// \brief Inserts a line with current time into logger.

   ///

   /// \param label Description of the current time line.

   void writeCurrentTime( const char* label );

   // TODO: add units

      /// It returns the elapsed time between calling the start() and stop() functions.

      /// Starts counting the real time after the function start() is called and

      /// pauses when the function stop() is called.

      /// If the timer have been started more then one time without resetting,

      /// If the timer have been started more then once without resetting,

      /// the real time is counted by adding all intervals (between start and stop

      /// functions) together.

      /// This function can be called while the timer is running, there is no

      /// Returns the number of CPU cycles (machine cycles).

      unsigned long long int getCPUCycles() const;

      /// \brief Writes a record to the \e logger.

      /// \brief Writes a record into the \e logger.

      ///

      /// \param logger

      /// \param logLevel A whole number from zero up, which indicates the indent.

   unsigned long long int initialCPUCycles, totalCPUCycles;

   /// \brief Saves information about state of the timer.

   /// \brief Saves information about the state of given timer.

   ///

   /// Knows whether the timer is currently stopped or not.

   bool stopState;