Overloading functions

• In C, function names must be unique across all modules.

• In C++, function names may be reused, provided the arguments allow disambiguation.

• Different classes may have the same member function name, since the type of the object allows the compiler to disambiguate.

• Global functions can also be overloaded...
  ...just as functions within the same class:

  
  class Point
  {
      double distance_to_point( point other );
      double distance_to_point( int x, int y );
      // ...
  };