ceph/src/boost/libs/hana/test/optional/empty.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/empty.hpp>
   7 #include <boost/hana/equal.hpp>
   8 #include <boost/hana/optional.hpp>
   9 namespace hana = boost::hana;
  10
  11
  12 int main() {
  13     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  14         hana::empty<hana::optional_tag>(),
  15         hana::nothing
  16     ));
  17 }