ceph/src/boost/libs/hana/example/ext/boost/mpl/integral_c/integral_constant.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/ext/boost/mpl/integral_c.hpp>
   8 #include <boost/hana/not_equal.hpp>
   9
  10 #include <boost/mpl/int.hpp>
  11 #include <boost/mpl/integral_c.hpp>
  12 #include <boost/mpl/long.hpp>
  13 namespace hana = boost::hana;
  14 namespace mpl = boost::mpl;
  15
  16
  17 static_assert(hana::value(mpl::integral_c<int, 3>{}) == 3, "");
  18 static_assert(mpl::integral_c<int, 3>::value == 3, "");
  19
  20 BOOST_HANA_CONSTANT_CHECK(hana::equal(mpl::integral_c<int, 3>{}, mpl::int_<3>{}));
  21 BOOST_HANA_CONSTANT_CHECK(hana::equal(mpl::integral_c<int, 3>{}, mpl::long_<3>{}));
  22 BOOST_HANA_CONSTANT_CHECK(hana::not_equal(mpl::integral_c<int, 3>{}, mpl::int_<0>{}));
  23
  24 int main() { }