is_a.cpp 598 B

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  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/core/is_a.hpp>
  5. #include <boost/hana/integral_constant.hpp>
  6. #include <boost/hana/not.hpp>
  7. #include <boost/hana/tuple.hpp>
  8. namespace hana = boost::hana;
  9. static_assert(hana::is_a<hana::tuple_tag, decltype(hana::make_tuple(1, '2', 3.3))>, "");
  10. static_assert(!hana::is_a<hana::tuple_tag, void>, "");
  11. static_assert(hana::is_an<hana::integral_constant_tag<int>>(hana::int_c<10>), "");
  12. int main() { }