function pointer bug?

[bitwise via Digitalmars-d]

>> quotes self

Here is a better example, showing that virtual function pointers 
are available at compile time in C++. Essentially, I would expect 
my D code to function similarly, but it won't compile.

class TestAddr {
     public: virtual void test() { cout << "test" << endl; }
};

template<void (TestAddr::*FN)()>
class PtrWrapper
{
public:
     void invoke(TestAddr *instance) { (instance->*FN)(); }
};

int main(int argc, const char * argv[])
{
     TestAddr test;
     PtrWrapper<&TestAddr::test> wrapper;
     wrapper.invoke(&test);
     return 0;
}