Definition of Enumerator Constants

Enumerators are considered defined immediately after their initializers; therefore, they can be used to initialize succeeding enumerators. The following example defines an enumerated type that ensures that any two enumerators can be combined with the OR operator:

// enumerator_constants.cpp
enum FileOpenFlags
{
 OpenReadOnly = 1,
 OpenReadWrite = OpenReadOnly << 1,
 OpenBinary = OpenReadWrite << 1,
 OpenText = OpenBinary << 1,
 OpenShareable = OpenText << 1
};
int main()
{
}

In this example, the preceding enumerator initializes each succeeding enumerator.

See Also

Reference

C++ Enumeration Declarations