Scope and Accessing Class Members

Scope and Accessing Class Members

·        A class’s data members and member functions belong to that class’s scope.

·        Nonmember functions are defined at global namespace scope.

·        Within a class’s scope, class members are immediately accessible by all of that class’s member functions and can be referenced by name.

·        Outside a class’s scope, class members are referenced through one of the handles on an object: an object name, a reference to an object, or a pointer to an object.

·        Member functions of a class can be overloaded only by other member functions of that class.

·        To overload a member function, provide in the class definition a prototype for each version

·        of the overloaded function, and provide a separate definition for each version of the function.

·        Variables declared in a member function have local scope and are known only to that function.

·        The dot member selection operator (.) is preceded by an object’s name or by a reference to an object to access the object’s public members.

·        Constructors with Default Arguments

·        Like other functions, constructors can specify default arguments.