ceph/src/boost/libs/hana/example/optional/comparable.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/equal.hpp>
   7 #include <boost/hana/not_equal.hpp>
   8 #include <boost/hana/optional.hpp>
   9 namespace hana = boost::hana;
  10
  11
  12 BOOST_HANA_CONSTANT_CHECK(hana::nothing == hana::nothing);
  13 static_assert(hana::just('x') == hana::just('x'), "");
  14 static_assert(hana::just('x') != hana::just('y'), "");
  15 BOOST_HANA_CONSTANT_CHECK(hana::just('x') != hana::nothing);
  16
  17 int main() { }