Is the enumeration always be used ?

[alantheweasel]

i dun understand what the enumeration is used for ?

[vlad from moscow]

For introducing meaningful names instead of magic values.

[alantheweasel]

What is the functional differences between enumeration and "struct"

[vlad from moscow]

Structures can have members of any types plus methods. Enumerations have only enumerators that is named constants.
I think you should open at least one book on C++ instead of to bother the forum.

[alantheweasel]

yup , i am reading "C++ Primer Plus 6/e"

[Disch]

To put it plainly, structs house variables. Whereas enums house constants.