8 long long get_current_time_in_us();
11 int round_up_to_next_multiple_of_2(int n);
13 /* utilitis for making sequence for tuple element retrieval */
14 template<size_t ...> struct seq {};
15 template<size_t idx, std::size_t N, std::size_t... S> struct seq_helper: seq_helper<idx + 1, N, S..., idx> {};
16 template<size_t N, size_t ...S> struct seq_helper<N, N, S...> {
17 typedef seq<S...> type;
20 struct make_sequence {
21 typedef typename seq_helper<0, N>::type type;