ceph/src/boost/libs/hana/example/sequence/monad_plus.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/append.hpp>
   6 #include <boost/hana/assert.hpp>
   7 #include <boost/hana/concat.hpp>
   8 #include <boost/hana/empty.hpp>
   9 #include <boost/hana/equal.hpp>
  10 #include <boost/hana/tuple.hpp>
  11
  12 #include <string>
  13 namespace hana = boost::hana;
  14 using namespace std::string_literals;
  15
  16
  17 BOOST_HANA_CONSTANT_CHECK(hana::empty<hana::tuple_tag>() == hana::make_tuple());
  18
  19 static_assert(hana::append(hana::make_tuple(1, '2', 3.3), nullptr)
  20                         == hana::make_tuple(1, '2', 3.3, nullptr), "");
  21
  22 int main() {
  23     BOOST_HANA_RUNTIME_CHECK(
  24         hana::concat(hana::make_tuple(1, '2', 3.3), hana::make_tuple("abcdef"s)) ==
  25         hana::make_tuple(1, '2', 3.3, "abcdef"s)
  26     );
  27 }