Enums Inside Classes

You can place an enum definition within a class, and have the enum values follow the standard class access rules of private, public, and protected. Once defined, you access the enum as any other member, but for public members outside the class you must use the scope resolution operator:

 #include <iostream> 
 class MDate 
 { 
 public: 
 enum Day { Sun, Mon, Tue, Wed, Thu, Fri, Sat }; 
 MDate() { M=0; D=0; Y=0; WeekDay=Sun; };         // 
 Use 'Sun' constant value 
 Day GetWeekDay( void ) { return( WeekDay ); };  // 
 Use 'Day' data type 
 private: 
 Day WeekDay;            // Use of Day data type 
 char M, Y, D; 
 }; 
 void main( void ) 
 { 
 MDate Today; 
 MDate::Day D;            // Note scope resolution operator 
 D = Today.GetWeekDay(); 
 if( D == MDate::Sun ) // Note scope resolution operator 
 cout << "All is well\n"; 
 }