// 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/transform.hpp> #include <boost/hana/tuple.hpp> #include <sstream> #include <string> namespace hana = boost::hana; auto to_string = [](auto x) { std::ostringstream ss; ss << x; return ss.str(); }; int main() { BOOST_HANA_RUNTIME_CHECK( hana::transform(hana::make_tuple(1, '2', "345", std::string{"67"}), to_string) == hana::make_tuple("1", "2", "345", "67") ); }