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Compiler Error C3840

 

declaration of 'method' not allowed; use destructors to implement finalization

Declare a destructor instead of a Finalize method in a managed class.

C3840 is only reachable using /clr:oldSyntax.

The following sample generates C3840:

Copy 
// C3840.cpp
// compile with: /clr:oldSyntax
#using <mscorlib.dll>
__gc class X
{
protected:

   void Finalize()
   {   // C3840, "declaration of 'X::Finalize' not allowed...
   }

   // declare a destructor instead
   // ~X()
   // {
   // }
};

int main()
{
}
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