compile-time-fib-templates.cpp

template<unsigned n>
struct Fibonacci {
  static const unsigned value = Fibonacci<n - 1>::value + Fibonacci<n - 2>::value;
};

template<>
struct Fibonacci<0> {
  static const unsigned value = 0;
};

template<>
struct Fibonacci<1> {
  static const unsigned value = 1;
};

int main() {
  return Fibonacci<5>::value;   
}