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/assert.hpp> 6 #include <boost/hana/ext/std/integer_sequence.hpp> 7 #include <boost/hana/is_empty.hpp> 8 #include <boost/hana/not.hpp> 9 10 #include <utility> 11 namespace hana = boost::hana; 12 13 main()14int main() { 15 BOOST_HANA_CONSTANT_CHECK(hana::is_empty(std::index_sequence<>{})); 16 BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(std::index_sequence<0>{}))); 17 BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(std::index_sequence<1>{}))); 18 } 19