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Compiler Error C3650

Error Message

'interface_method' : cannot be used as an explicit override, must be a virtual member function of a base class

An attempt was made to perform an explicit override on a member that was not virtual.

For more information, see Explicit Overrides.

The following sample generates C3650:

// C3650.cpp
// compile with: /clr
public interface struct I {
   void a();
};

public ref class S {
public:
   static int f() { return 0; }
   static int g() { return 0; }
};

public ref struct T1 : public S, I {
   virtual int f() new sealed = S::f;   // C3650
   virtual int g() { return 0; }   // OK does not override S::g
   virtual void a() new sealed = I::a {}   // OK
};

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