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1 | // Copyright 2017, 2021 Peter Dimov. |
2 | // Distributed under the Boost Software License, Version 1.0. | |
3 | // https://www.boost.org/LICENSE_1_0.txt | |
4 | ||
5 | #include <boost/system/result.hpp> | |
6 | #include <boost/core/lightweight_test.hpp> | |
7 | #include <boost/core/lightweight_test_trait.hpp> | |
8 | ||
9 | using namespace boost::system; | |
10 | ||
11 | struct X | |
12 | { | |
13 | static int instances; | |
14 | ||
15 | int v_; | |
16 | ||
17 | X(): v_() { ++instances; } | |
18 | ||
19 | explicit X( int v ): v_( v ) { ++instances; } | |
20 | ||
21 | X( int v1, int v2 ): v_( v1+v2 ) { ++instances; } | |
22 | X( int v1, int v2, int v3 ): v_( v1+v2+v3 ) { ++instances; } | |
23 | ||
24 | X( X const& r ): v_( r.v_ ) { ++instances; } | |
25 | ||
26 | X& operator=( X const& ) = delete; | |
27 | ||
28 | ~X() { --instances; } | |
29 | }; | |
30 | ||
31 | bool operator==( X const & x1, X const & x2 ) | |
32 | { | |
33 | return x1.v_ == x2.v_; | |
34 | } | |
35 | ||
36 | std::ostream& operator<<( std::ostream& os, X const & x ) | |
37 | { | |
38 | os << "X:" << x.v_; | |
39 | return os; | |
40 | } | |
41 | ||
42 | int X::instances = 0; | |
43 | ||
44 | int main() | |
45 | { | |
46 | { | |
47 | result<int> r; | |
48 | result<int> r2( r ); | |
49 | ||
50 | BOOST_TEST_EQ( r, r2 ); | |
51 | } | |
52 | ||
53 | { | |
54 | result<int> const r; | |
55 | result<int> r2( r ); | |
56 | ||
57 | BOOST_TEST_EQ( r, r2 ); | |
58 | } | |
59 | ||
60 | BOOST_TEST_EQ( X::instances, 0 ); | |
61 | ||
62 | { | |
63 | result<X> r; | |
64 | result<X> r2( r ); | |
65 | ||
66 | BOOST_TEST_EQ( r, r2 ); | |
67 | BOOST_TEST_EQ( X::instances, 2 ); | |
68 | } | |
69 | ||
70 | BOOST_TEST_EQ( X::instances, 0 ); | |
71 | ||
72 | { | |
73 | result<int> r( 1 ); | |
74 | result<int> r2( r ); | |
75 | ||
76 | BOOST_TEST_EQ( r, r2 ); | |
77 | } | |
78 | ||
79 | { | |
80 | result<int> const r( 1 ); | |
81 | result<int> r2( r ); | |
82 | ||
83 | BOOST_TEST_EQ( r, r2 ); | |
84 | } | |
85 | ||
86 | BOOST_TEST_EQ( X::instances, 0 ); | |
87 | ||
88 | { | |
89 | result<X> r( 1 ); | |
90 | result<X> r2( r ); | |
91 | ||
92 | BOOST_TEST_EQ( r, r2 ); | |
93 | BOOST_TEST_EQ( X::instances, 2 ); | |
94 | } | |
95 | ||
96 | BOOST_TEST_EQ( X::instances, 0 ); | |
97 | ||
98 | { | |
99 | result<X> const r( 1 ); | |
100 | result<X> r2( r ); | |
101 | ||
102 | BOOST_TEST_EQ( r, r2 ); | |
103 | BOOST_TEST_EQ( X::instances, 2 ); | |
104 | } | |
105 | ||
106 | BOOST_TEST_EQ( X::instances, 0 ); | |
107 | ||
108 | { | |
109 | auto ec = make_error_code( errc::invalid_argument ); | |
110 | ||
111 | result<int> r( ec ); | |
112 | result<int> r2( r ); | |
113 | ||
114 | BOOST_TEST_EQ( r, r2 ); | |
115 | } | |
116 | ||
117 | { | |
118 | auto ec = make_error_code( errc::invalid_argument ); | |
119 | ||
120 | result<int> const r( ec ); | |
121 | result<int> r2( r ); | |
122 | ||
123 | BOOST_TEST_EQ( r, r2 ); | |
124 | } | |
125 | ||
126 | BOOST_TEST_EQ( X::instances, 0 ); | |
127 | ||
128 | { | |
129 | result<std::string, X> r( 1 ); | |
130 | result<std::string, X> r2( r ); | |
131 | ||
132 | BOOST_TEST_EQ( r, r2 ); | |
133 | BOOST_TEST_EQ( X::instances, 2 ); | |
134 | } | |
135 | ||
136 | BOOST_TEST_EQ( X::instances, 0 ); | |
137 | ||
138 | { | |
139 | result<std::string, X> const r( 1 ); | |
140 | result<std::string, X> r2( r ); | |
141 | ||
142 | BOOST_TEST_EQ( r, r2 ); | |
143 | BOOST_TEST_EQ( X::instances, 2 ); | |
144 | } | |
145 | ||
146 | BOOST_TEST_EQ( X::instances, 0 ); | |
147 | ||
148 | { | |
149 | result<void> r; | |
150 | result<void> r2( r ); | |
151 | ||
152 | BOOST_TEST_EQ( r, r2 ); | |
153 | } | |
154 | ||
155 | { | |
156 | result<void> const r; | |
157 | result<void> r2( r ); | |
158 | ||
159 | BOOST_TEST_EQ( r, r2 ); | |
160 | } | |
161 | ||
162 | { | |
163 | auto ec = make_error_code( errc::invalid_argument ); | |
164 | ||
165 | result<void> r( ec ); | |
166 | result<void> r2( r ); | |
167 | ||
168 | BOOST_TEST_EQ( r, r2 ); | |
169 | } | |
170 | ||
171 | { | |
172 | auto ec = make_error_code( errc::invalid_argument ); | |
173 | ||
174 | result<void> const r( ec ); | |
175 | result<void> r2( r ); | |
176 | ||
177 | BOOST_TEST_EQ( r, r2 ); | |
178 | } | |
179 | ||
180 | return boost::report_errors(); | |
181 | } |