Compiler Error C2599

'enum' : forward declaration of enum type is not allowed

Remarks

The compiler no longer supports forward declaration of a managed enumeration.

Forward declaration of an enum type is not allowed under /Za.

Example

The following example generates C2599:

// C2599.cpp
// compile with: /clr /c
enum class Status;   // C2599

enum class Status2 { stop2, hold2, go2};

ref struct MyStruct {
   // Delete the following line to resolve.
   Status m_status;

   Status2 m_status2;   // OK
};

enum class Status { stop, hold, go };