ceph/src/boost/libs/hana/test/experimental/view/empty/unpack.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/experimental/view.hpp>
   8 #include <boost/hana/unpack.hpp>
   9
  10 #include <laws/base.hpp>
  11 namespace hana = boost::hana;
  12
  13
  14 int main() {
  15     auto f = hana::test::_injection<0>{};
  16
  17     {
  18         auto empty = hana::experimental::empty_view();
  19         BOOST_HANA_CONSTANT_CHECK(hana::equal(
  20             hana::unpack(empty, f),
  21             f()
  22         ));
  23     }
  24 }