ceph/src/boost/libs/hana/benchmark/find_if/compile.std.integer_sequence.erb.cpp

   1 // Copyright Louis Dionne 2013-2016
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/hana/bool.hpp>
   6 #include <boost/hana/ext/std/integer_sequence.hpp>
   7 #include <boost/hana/find_if.hpp>
   8 #include <boost/hana/integral_constant.hpp>
   9
  10 #include <utility>
  11 namespace hana = boost::hana;
  12
  13
  14 struct is_last {
  15     template <typename N>
  16     constexpr auto operator()(N) const {
  17         return hana::bool_c<N::value == <%= input_size %>>;
  18     }
  19 };
  20
  21 int main() {
  22     auto sequence = std::integer_sequence<
  23         <%= (["int"] + (1..input_size).to_a).join(', ') %>
  24     >{};
  25     auto result = hana::find_if(sequence, is_last{});
  26     (void)result;
  27 }