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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
16using namespace boost::variant2;
17
18struct X
19{
20};
21
22inline bool operator==( X const&, X const& ) { return false; }
23inline bool operator!=( X const&, X const& ) { return false; }
24
25int 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}