is_empty.cpp 493 B

123456789101112131415
  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. #include <boost/hana/assert.hpp>
  5. #include <boost/hana/is_empty.hpp>
  6. #include <boost/hana/not.hpp>
  7. #include <boost/hana/tuple.hpp>
  8. namespace hana = boost::hana;
  9. BOOST_HANA_CONSTANT_CHECK(!hana::is_empty(hana::make_tuple(1, '2')));
  10. BOOST_HANA_CONSTANT_CHECK( hana::is_empty(hana::make_tuple()));
  11. int main() { }