ceph/src/boost/libs/hana/example/sequence/functor.cpp

   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/transform.hpp>
   8 #include <boost/hana/tuple.hpp>
   9
  10 #include <sstream>
  11 #include <string>
  12 namespace hana = boost::hana;
  13
  14
  15 auto to_string = [](auto x) {
  16     std::ostringstream ss;
  17     ss << x;
  18     return ss.str();
  19 };
  20
  21 int main() {
  22     BOOST_HANA_RUNTIME_CHECK(
  23         hana::transform(hana::make_tuple(1, '2', "345", std::string{"67"}), to_string) ==
  24         hana::make_tuple("1", "2", "345", "67")
  25     );
  26 }