ceph/src/boost/libs/hana/test/optional/equal.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.hpp>
   8 #include <boost/hana/not_equal.hpp> // for operator !=
   9 #include <boost/hana/optional.hpp>
  10
  11 #include <laws/base.hpp>
  12 namespace hana = boost::hana;
  13
  14
  15 int main() {
  16     hana::test::ct_eq<3> x{};
  17     hana::test::ct_eq<4> y{};
  18
  19     BOOST_HANA_CONSTANT_CHECK(hana::equal(hana::nothing, hana::nothing));
  20     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::equal(hana::nothing, hana::just(x))));
  21     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::equal(hana::just(x), hana::nothing)));
  22     BOOST_HANA_CONSTANT_CHECK(hana::equal(hana::just(x), hana::just(x)));
  23     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::equal(hana::just(x), hana::just(y))));
  24
  25     BOOST_HANA_CONSTANT_CHECK(hana::nothing == hana::nothing);
  26     BOOST_HANA_CONSTANT_CHECK(hana::just(x) == hana::just(x));
  27     BOOST_HANA_CONSTANT_CHECK(hana::just(x) != hana::just(y));
  28     BOOST_HANA_CONSTANT_CHECK(hana::just(x) != hana::nothing);
  29     BOOST_HANA_CONSTANT_CHECK(hana::nothing != hana::just(x));
  30 }