language: C++11 (gcc-4.7.2)
date: 471 days 19 hours ago
link:
visibility: private 
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#include <tuple>
 
template<unsigned I>
struct static_index{
  static unsigned const value = I;
};
 
template <typename... Fields>
class Record {
  private:
    typedef std::tuple<Fields...> tuple_t;
    tuple_t list;
 
  public:
    Record() {}
 
    template<unsigned I>
    auto operator[](static_index<I>)
        -> typename std::tuple_element<
               I, tuple_t>::type&
    {
        return std::get<I>(list);
    }
};
 
namespace idx{
const static_index<0> _0 = {};
const static_index<1> _1 = {};
const static_index<2> _2 = {};
const static_index<3> _3 = {};
const static_index<4> _4 = {};
}
 
int main() {
    Record<int, double> r;
    r[idx::_0];
    return 0;
}