Compiler Error C3668
Visual Studio 2015
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The latest version of this topic can be found at Compiler Error C3668.
method' : method with override specifier 'override' did not override any base class methods
A function attempted to override a non-existent function.
For more information, see Explicit Overrides.
The following sample generates C3668.
// C3668.cpp
// compile with: /c
__interface I {
void f(int); // virtual by default
};
class J {
public:
void g(int);
virtual void h(int);
};
struct R : I,J {
virtual void f() override {} // C3668
virtual void f(int) override {} // OK
virtual void g(int) override {} // C3668
virtual void h(int) override {} // OK
};
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