ceph/src/boost/libs/variant2/test/variant_eq_ne.cpp

   1
   2 // Copyright 2017 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 #include <boost/variant2/variant.hpp>
  10 #include <boost/core/lightweight_test.hpp>
  11 #include <boost/core/lightweight_test_trait.hpp>
  12 #include <type_traits>
  13 #include <utility>
  14 #include <string>
  15
  16 using namespace boost::variant2;
  17
  18 struct X
  19 {
  20 };
  21
  22 inline bool operator==( X const&, X const& ) { return false; }
  23 inline bool operator!=( X const&, X const& ) { return false; }
  24
  25 int main()
  26 {
  27     {
  28         variant<int> v1, v2, v3( 1 ), v4( 1 );
  29
  30         BOOST_TEST( v1 == v2 );
  31         BOOST_TEST_NOT( v1 != v2 );
  32
  33         BOOST_TEST( v1 != v3 );
  34         BOOST_TEST_NOT( v1 == v3 );
  35
  36         BOOST_TEST( v3 == v4 );
  37         BOOST_TEST_NOT( v3 != v4 );
  38     }
  39
  40     {
  41         variant<int, float> v1, v2, v3( 1 ), v4( 1 ), v5( 3.14f ), v6( 3.14f );
  42
  43         BOOST_TEST( v1 == v2 );
  44         BOOST_TEST_NOT( v1 != v2 );
  45
  46         BOOST_TEST( v1 != v3 );
  47         BOOST_TEST_NOT( v1 == v3 );
  48
  49         BOOST_TEST( v3 == v4 );
  50         BOOST_TEST_NOT( v3 != v4 );
  51
  52         BOOST_TEST( v1 != v5 );
  53         BOOST_TEST_NOT( v1 == v5 );
  54
  55         BOOST_TEST( v3 != v5 );
  56         BOOST_TEST_NOT( v3 == v5 );
  57
  58         BOOST_TEST( v5 == v6 );
  59         BOOST_TEST_NOT( v5 != v6 );
  60     }
  61
  62     {
  63         variant<int, int, float> v1, v2, v3( in_place_index_t<1>{} ), v4( in_place_index_t<1>{} ), v5( 3.14f ), v6( 3.14f );
  64
  65         BOOST_TEST( v1 == v2 );
  66         BOOST_TEST_NOT( v1 != v2 );
  67
  68         BOOST_TEST( v1 != v3 );
  69         BOOST_TEST_NOT( v1 == v3 );
  70
  71         BOOST_TEST( v3 == v4 );
  72         BOOST_TEST_NOT( v3 != v4 );
  73
  74         BOOST_TEST( v1 != v5 );
  75         BOOST_TEST_NOT( v1 == v5 );
  76
  77         BOOST_TEST( v3 != v5 );
  78         BOOST_TEST_NOT( v3 == v5 );
  79
  80         BOOST_TEST( v5 == v6 );
  81         BOOST_TEST_NOT( v5 != v6 );
  82     }
  83
  84     {
  85         variant<X> v1, v2;
  86
  87         BOOST_TEST_NOT( v1 == v2 );
  88         BOOST_TEST_NOT( v1 != v2 );
  89     }
  90
  91     return boost::report_errors();
  92 }