More function default parameters

• Early C++ allowed default args in function definitions:

  
      void print( int value, int base = 10 );
      void print( int value, int base = 10 )
      {
          //...
      }

• Today's ISO C++ no longer permits it, so use:

  
      void print( int value, int base = 10 );
      void print( int value, int base /* = 10 */ )
      {
          //...
      }