ceph/src/boost/libs/hana/benchmark/find_if/compile.hana.set.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 #include <boost/hana/bool.hpp>
   6 #include <boost/hana/find_if.hpp>
   7 #include <boost/hana/integral_constant.hpp>
   8 #include <boost/hana/set.hpp>
   9 namespace hana = boost::hana;
  10
  11
  12 struct is_last {
  13     template <typename N>
  14     constexpr auto operator()(N) const {
  15         return hana::bool_c<N::value == <%= input_size %>>;
  16     }
  17 };
  18
  19 int main() {
  20     constexpr auto set = hana::make_set(
  21         <%= (1..input_size).map { |n| "hana::int_c<#{n}>" }.join(', ') %>
  22     );
  23     constexpr auto result = hana::find_if(set, is_last{});
  24     (void)result;
  25 }