ceph/src/boost/libs/hana/benchmark/fold_left/compile.fusion.vector.erb.cpp

   1 // Copyright Louis Dionne 2013-2017
   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 <% if input_size > 10 %>
   6     #define FUSION_MAX_VECTOR_SIZE <%= ((input_size + 9) / 10) * 10 %>
   7 <% end %>
   8
   9 #include <boost/fusion/include/fold.hpp>
  10 #include <boost/fusion/include/make_vector.hpp>
  11 namespace fusion = boost::fusion;
  12
  13
  14 struct f {
  15     template <typename State, typename X>
  16     constexpr X operator()(State, X x) const { return x; }
  17 };
  18
  19 struct state { };
  20
  21 template <int i>
  22 struct x { };
  23
  24 int main() {
  25     auto xs = fusion::make_vector(
  26         <%= (1..input_size).map { |n| "x<#{n}>{}" }.join(', ') %>
  27     );
  28
  29     auto result = fusion::fold(xs, state{}, f{});
  30     (void)result;
  31 }