FizzBuzz in C++ templates

#include <iostream>

template< int x >
struct FizzBuzz
{
    void operator()()
    {
        std::cout << x << std::endl;
    }
};

template<>
struct FizzBuzz<-1>
{
    void operator()()
    {
        std::cout << "Fizz" << std::endl;
    }
};

template<>
struct FizzBuzz<-2>
{
    void operator()()
    {
        std::cout << "Buzz" << std::endl;
    }
};

template<>
struct FizzBuzz<-3>
{
    void operator()()
    {
        std::cout << "FizzBuzz" << std::endl;
    }
};

template< int x >
struct Selector
{
    enum
    {
        v = ( ( x % 15 ) == 0 ? -3 :
                ( x % 5 ) == 0 ? -2 :
                ( x % 3 ) == 0 ? -1 : x )
    };
};

template< int x >
struct ReverseIter : public ReverseIter< x - 1 >
{
    void operator()()
    {
        ReverseIter< x - 1 >()();
        FizzBuzz< Selector< x >::v > f;
        f();
    }
};

template<>
struct ReverseIter< 0 >
{
    void operator()()
    {
    }
};

int
main( void )
{
    ReverseIter<100> r;
    r();
    return 0;
}