C ++ enumerated type of use

Enumeration enum type name list variable values ​​{}

Yao An enumerated type constant treatment, can not be assigned to them

. 1  enum Weekday {the SUN, the MON, the TUE, WEDs, the THU, the FRI, the SAT}; // enumeration type declaration 
2 the SUN = 0 ; // illegal assignment

The default value of enumerated type of starting from 0, 4, 5, ......

You may otherwise defined enumeration element in the statement value

enum Weekday the SUN = { . 7 , the MON = . 1 , the TUE, WEDs, the THU, the FRI, the SAT};
 / * enumerated type can declare the value of a particular option, along an increment not previously declared 
the MON. 1 = 
the TUE = 2 
WEDs . 3 = 
the THU. 4 = 
the FRI. 5 = 
the SAT. 6 = 
* /

Integer value can not be assigned directly to an enumeration type variable, if you really need to use integer, we need to cast

#include <the iostream>
 the using  namespace STD; 

enum Weekday the SUN = { . 7 , the MON = . 1 , the TUE, WEDs, the THU, the FRI, the SAT}; 

int main () { 
    Weekday A; 
    A = 2 ; // not legal 
    a = TUE ; // legitimate         
    A = (Weekday) 2 ; // legitimate 
    COUT << A; 
}