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)
5 #include <boost/hana/bool.hpp>
6 #include <boost/hana/find_if.hpp>
7 #include <boost/hana/integral_constant.hpp>
8 #include <boost/hana/tuple.hpp>
13 constexpr auto operator()(N) const {
14 return boost::hana::bool_c<N::value == <%= input_size %>>;
19 constexpr auto tuple = boost::hana::make_tuple(
20 <%= (1..input_size).map { |n| "boost::hana::int_c<#{n}>" }.join(', ') %>
22 constexpr auto result = boost::hana::find_if(tuple, is_last{});