#include <triqs/utility/tuple_tools.hpp>
#include <iostream>

int main() {
 auto t = std::make_tuple(1, 2.3, 4.3, 8);
 auto l = [](double x) { std::cout << x << " "; };

 triqs::tuple::for_each(t, l);
 std::cout << std::endl;
 triqs::tuple::for_each(reverse(t), l);
}