ceph/src/boost/libs/hana/test/map/assign.move.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/assert.hpp>
   6 #include <boost/hana/at_key.hpp>
   7 #include <boost/hana/map.hpp>
   8 #include <boost/hana/pair.hpp>
   9
  10 #include <laws/base.hpp>
  11
  12 #include <string>
  13 #include <utility>
  14 namespace hana = boost::hana;
  15 namespace test = hana::test;
  16
  17
  18 struct MoveOnly {
  19     int data_;
  20     MoveOnly(MoveOnly const&) = delete;
  21     MoveOnly& operator=(MoveOnly const&) = delete;
  22     MoveOnly(int data = 1) : data_(data) { }
  23     MoveOnly(MoveOnly&& x) : data_(x.data_) { x.data_ = 0; }
  24
  25     MoveOnly& operator=(MoveOnly&& x)
  26     { data_ = x.data_; x.data_ = 0; return *this; }
  27
  28     int get() const {return data_;}
  29     bool operator==(const MoveOnly& x) const { return data_ == x.data_; }
  30     bool operator< (const MoveOnly& x) const { return data_ <  x.data_; }
  31 };
  32
  33 int main() {
  34     {
  35         using Map = hana::map<>;
  36         Map map0;
  37         Map map;
  38         map0 = std::move(map);
  39     }
  40     {
  41         using Map = hana::map<hana::pair<test::ct_eq<0>, MoveOnly>>;
  42         Map map0 = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{999}));
  43         Map map  = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{4}));
  44         map0 = std::move(map);
  45         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<0>{}) == MoveOnly{4});
  46     }
  47     {
  48         using Map = hana::map<hana::pair<test::ct_eq<0>, MoveOnly>,
  49                               hana::pair<test::ct_eq<1>, MoveOnly>>;
  50         Map map0 = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{999}),
  51                                   hana::make_pair(test::ct_eq<1>{}, MoveOnly{888}));
  52         Map map  = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{4}),
  53                                   hana::make_pair(test::ct_eq<1>{}, MoveOnly{5}));
  54         map0 = std::move(map);
  55         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<0>{}) == MoveOnly{4});
  56         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<1>{}) == MoveOnly{5});
  57     }
  58     {
  59         using Map = hana::map<hana::pair<test::ct_eq<0>, MoveOnly>,
  60                               hana::pair<test::ct_eq<1>, MoveOnly>,
  61                               hana::pair<test::ct_eq<2>, MoveOnly>>;
  62         Map map0 = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{999}),
  63                                   hana::make_pair(test::ct_eq<1>{}, MoveOnly{888}),
  64                                   hana::make_pair(test::ct_eq<2>{}, MoveOnly{777}));
  65         Map map  = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{4}),
  66                                   hana::make_pair(test::ct_eq<1>{}, MoveOnly{5}),
  67                                   hana::make_pair(test::ct_eq<2>{}, MoveOnly{6}));
  68         map0 = std::move(map);
  69         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<0>{}) == MoveOnly{4});
  70         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<1>{}) == MoveOnly{5});
  71         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<2>{}) == MoveOnly{6});
  72     }
  73     {
  74         using Map = hana::map<hana::pair<test::ct_eq<0>, MoveOnly>,
  75                               hana::pair<test::ct_eq<1>, MoveOnly>,
  76                               hana::pair<test::ct_eq<2>, MoveOnly>,
  77                               hana::pair<test::ct_eq<3>, std::string>>;
  78         Map map0 = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{999}),
  79                                   hana::make_pair(test::ct_eq<1>{}, MoveOnly{888}),
  80                                   hana::make_pair(test::ct_eq<2>{}, MoveOnly{777}),
  81                                   hana::make_pair(test::ct_eq<3>{}, std::string{"zzzzz"}));
  82         Map map  = hana::make_map(hana::make_pair(test::ct_eq<0>{}, MoveOnly{4}),
  83                                   hana::make_pair(test::ct_eq<1>{}, MoveOnly{5}),
  84                                   hana::make_pair(test::ct_eq<2>{}, MoveOnly{6}),
  85                                   hana::make_pair(test::ct_eq<3>{}, std::string{"abc"}));
  86         map0 = std::move(map);
  87         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<0>{}) == MoveOnly{4});
  88         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<1>{}) == MoveOnly{5});
  89         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<2>{}) == MoveOnly{6});
  90         BOOST_HANA_RUNTIME_CHECK(hana::at_key(map0, test::ct_eq<3>{}) == std::string{"abc"});
  91     }
  92 }