libs/hana/test/experimental/view/single/at.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/at.hpp>
   7 #include <boost/hana/equal.hpp>
   8 #include <boost/hana/experimental/view.hpp>
   9 #include <boost/hana/integral_constant.hpp>
  10
  11 #include <laws/base.hpp>
  12 namespace hana = boost::hana;
  13 using hana::test::ct_eq;
  14
  15
  16 int main() {
  17     {
  18         auto single = hana::experimental::single_view(ct_eq<0>{});
  19         BOOST_HANA_CONSTANT_CHECK(hana::equal(
  20             hana::at(single, hana::size_c<0>),
  21             ct_eq<0>{}
  22         ));
  23     }
  24 }