fib.cpp

#include <iostream>


template <unsigned N>
struct Fibonacci
{
    enum
    {
    	value = Fibonacci<N-1>::value + Fibonacci<N-2>::value
    };
};

template <>
struct Fibonacci<1>
{
    enum
    {
    	value = 1
    };
};

template <>
struct Fibonacci<0>
{
    enum
    {
    	value = 0
    };
};

int main(void)
{
    const int f = 45;
    std::cout << "Fibonacci(" << f << ") = " << Fibonacci<f>::value << std::endl;
}