Pointer to Print Class (DualWriter) / TelnetServer [solved]

Using Arduino Programming Questions
2

Extending the print class is easy:

  class DualWriter : public Print{
    public:
      DualWriter( Print &p_Out1, Print &p_Out2 ) : OutputA( p_Out1 ), OutputB( p_Out2 ){}
        
      size_t write( uint8_t u_Data )
        {
          OutputA.write( u_Data );
          OutputB.write( u_Data );
          return 0x01;
        }
    protected:
      Print &OutputA;
      Print &OutputB;
  };

Hopefully this should work (class completely untested):

EthernetClient c;

DualWriter d( Serial, c );

d.print( "this will write to Serial and EthernetClient"  );