ceph/src/boost/libs/hana/example/struct/keys.cpp

   1 // Copyright Louis Dionne 2013-2016
   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/define_struct.hpp>
   7 #include <boost/hana/equal.hpp>
   8 #include <boost/hana/keys.hpp>
   9 #include <boost/hana/string.hpp>
  10 #include <boost/hana/tuple.hpp>
  11
  12 #include <string>
  13 namespace hana = boost::hana;
  14
  15
  16 struct Person {
  17     BOOST_HANA_DEFINE_STRUCT(Person,
  18         (std::string, name),
  19         (unsigned short, age)
  20     );
  21 };
  22
  23 int main() {
  24     Person john{"John", 30};
  25     BOOST_HANA_CONSTANT_CHECK(
  26         hana::keys(john) == hana::make_tuple(BOOST_HANA_STRING("name"),
  27                                              BOOST_HANA_STRING("age"))
  28     );
  29 }