| #include <iostream> | |
| using namespace std; | |
| //! fibonacci numbers with gratuitous use of templates. | |
| //! \param n an index into the fibonacci series | |
| //! \param fib0 element 0 of the series | |
| //! \return the nth element of the fibonacci series | |
| template <class T> | |
| T fib(int n, const T& fib0) { | |
| T a(fib0), b(fib0); | |
| while (--n >= 0) { | |
| T tmp(a); | |
| a += b; | |
| b = tmp; | |
| } | |
| return a; | |
| } | |
| int main(int argc, char **argv) { | |
| cout << fib(10, 1U); | |
| } |