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/equal.hpp> 7 #include <boost/hana/integral_constant.hpp> 8 #include <boost/hana/product.hpp> 9 #include <boost/hana/range.hpp> 10 #include <boost/hana/tuple.hpp> 11 namespace hana = boost::hana; 12 13 main()14int main() { 15 BOOST_HANA_CONSTANT_CHECK( 16 hana::product<>(hana::make_range(hana::int_c<1>, hana::int_c<6>)) == hana::int_c<1 * 2 * 3 * 4 * 5> 17 ); 18 19 BOOST_HANA_CONSTEXPR_CHECK( 20 hana::product<>(hana::make_tuple(1, hana::int_c<3>, hana::long_c<-5>, 9)) == 1 * 3 * -5 * 9 21 ); 22 23 BOOST_HANA_CONSTEXPR_CHECK( 24 hana::product<unsigned long>(hana::make_tuple(2ul, 3ul)) == 6ul 25 ); 26 } 27