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- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/assert.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/ext/boost/fusion/tuple.hpp>
- #include <boost/hana/integral_constant.hpp>
- #include <boost/hana/transform.hpp>
- #include <boost/fusion/include/make_tuple.hpp>
- #include <boost/fusion/include/tuple.hpp>
- #include <string>
- namespace fusion = boost::fusion;
- namespace hana = boost::hana;
- struct Fish { std::string name; };
- struct Cat { std::string name; };
- struct Dog { std::string name; };
- int main() {
- fusion::tuple<Fish, Cat, Dog> animals{Fish{"Nemo"}, Cat{"Garfield"}, Dog{"Snoopy"}};
- hana::front(animals).name = "Moby Dick";
- auto names = hana::transform(animals, [](auto a) {
- return a.name;
- });
- BOOST_HANA_RUNTIME_CHECK(hana::equal(
- names,
- fusion::make_tuple("Moby Dick", "Garfield", "Snoopy")
- ));
- }
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