ceph/src/boost/libs/hana/test/ext/std/integer_sequence/is_empty.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/ext/std/integer_sequence.hpp>
   7 #include <boost/hana/is_empty.hpp>
   8 #include <boost/hana/not.hpp>
   9
  10 #include <utility>
  11 namespace hana = boost::hana;
  12
  13
  14 int main() {
  15     BOOST_HANA_CONSTANT_CHECK(hana::is_empty(std::index_sequence<>{}));
  16     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(std::index_sequence<0>{})));
  17     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(std::index_sequence<1>{})));
  18 }