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/core/to.hpp> 7 #include <boost/hana/map.hpp> 8 #include <boost/hana/pair.hpp> 9 #include <boost/hana/tuple.hpp> 10 #include <boost/hana/type.hpp> 11 12 #include <string> 13 namespace hana = boost::hana; 14 using namespace std::literals; 15 16 main()17int main() { 18 auto xs = hana::make_tuple( 19 hana::make_pair(hana::type_c<int>, "abcd"s), 20 hana::make_pair(hana::type_c<void>, 1234), 21 hana::make_pair(hana::type_c<int>, nullptr) 22 ); 23 24 BOOST_HANA_RUNTIME_CHECK( 25 hana::to<hana::map_tag>(xs) == hana::make_map( 26 hana::make_pair(hana::type_c<int>, "abcd"s), 27 hana::make_pair(hana::type_c<void>, 1234) 28 ) 29 ); 30 } 31