C++ error about returning a function

Sup /prog/

Can someone explain why I'm getting this error from VS2010?

main.cpp(14): error C2091: function returns function

Why can I not return this fucntion pointer, and how can I change my code so that I can?

Heres my code:
template<typename FunctionPointer>
class FunctionTest
{
public:
    typedef typename std::function<FunctionPointer> Function;
private:
    const Function function;
public:
    FunctionTest(const FunctionPointer& functor)
        : function(functor)
    {
    }
    operator FunctionPointer()
    {
        return (FunctionPointer)(function);
    }
};

int test(int x, int y)
{
    return x+y;
}

int main()
{
    FunctionTest<int(int,int)> x(test);
    std::cout<<x(5,6)<<"\n";
    system("pause");
    return 0;
}

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Should U.S. give its niggers separate state, deport them or just exterminate?

Basques, Bretons, Punjabis, Québecois, and Scots -- all should demand independence!

Member functions (such as functors) have a this pointer parameter, but regular functions do not.

If I had to guess, it's because in operator FunctionPointer() you cannot simply cast a std::function<T> to T (perhaps operator T() is not implemented in the std::function<T> class). I am not so familiar with Microsoft's implementation of C++0x.

bampu pantsu