ceph/src/boost/libs/mp11/test/mp_map_find_2.cpp

   1
   2 // Copyright 2016, 2020 Peter Dimov.
   3 //
   4 // Distributed under the Boost Software License, Version 1.0.
   5 //
   6 // See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt
   8
   9
  10 #include <boost/mp11/map.hpp>
  11 #include <boost/core/lightweight_test_trait.hpp>
  12 #include <tuple>
  13
  14 struct X {};
  15 struct Y {};
  16
  17 int main()
  18 {
  19     using boost::mp11::mp_map_find;
  20
  21     using L1 = std::tuple<std::tuple<int, int>, std::tuple<long, long>, std::tuple<bool, X>, std::tuple<X, bool>>;
  22
  23     BOOST_TEST_TRAIT_SAME( mp_map_find<L1, int>, std::tuple<int, int> );
  24     BOOST_TEST_TRAIT_SAME( mp_map_find<L1, bool>, std::tuple<bool, X> );
  25     BOOST_TEST_TRAIT_SAME( mp_map_find<L1, X>, std::tuple<X, bool> );
  26
  27     using L2 = std::tuple<std::tuple<X, Y>, std::tuple<Y, X>>;
  28
  29     BOOST_TEST_TRAIT_SAME( mp_map_find<L2, X>, std::tuple<X, Y> );
  30     BOOST_TEST_TRAIT_SAME( mp_map_find<L2, Y>, std::tuple<Y, X> );
  31
  32     return boost::report_errors();
  33 }