Reference Conversions

A reference to a class can be converted to a reference to a base class in the following cases:

• The specified base class is accessible (as defined in Pointers to Classes).
  
  
• The conversion is unambiguous. (See Multiple Base Classes in Chapter 9 for more information about ambiguous base-class references.)

The result of the conversion is a pointer to the subobject that represents the base class.

For more information about references, see References to Objects in Chapter 2.