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
operator ==(X const &,X const &)22 inline bool operator==( X const&, X const& ) { return false; }
operator !=(X const &,X const &)23 inline bool operator!=( X const&, X const& ) { return false; }
24
main()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 }
93