ceph/src/boost/libs/hana/example/ext/std/pair.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/ext/std/pair.hpp>
   6 #include <boost/hana/first.hpp>
   7 #include <boost/hana/less.hpp>
   8 #include <boost/hana/not_equal.hpp>
   9 #include <boost/hana/second.hpp>
  10 namespace hana = boost::hana;
  11
  12
  13 constexpr auto pair = std::make_pair(1, 'x');
  14
  15 static_assert(hana::first(pair) == 1, "");
  16 static_assert(hana::second(pair) == 'x', "");
  17
  18 static_assert(hana::not_equal(pair, std::make_pair(3, 'z')), "");
  19 static_assert(hana::less(pair, std::make_pair(3, 'x')), "");
  20
  21 int main() { }