Compiler Error C3084
'function': a finalizer/destructor cannot be 'keyword'
A finalizer or destructor was declared incorrectly.
For example, a destructor should not be marked as sealed. The destructor will be inaccessible to derived types. For more information, see Explicit Overrides and Destructors and finalizers in How to: Define and consume classes and structs (C++/CLI).
Example
The following sample generates C3084.
// C3084.cpp
// compile with: /clr /c
ref struct R {
protected:
!R() sealed; // C3084
!R() abstract; // C3084
!R();
};