1 | // Copyright 2021, 2022 Peter Dimov. |
2 | // Distributed under the Boost Software License, Version 1.0. |
3 | // http://www.boost.org/LICENSE_1_0.txt |
4 | |
5 | #include <boost/system/error_code.hpp> |
6 | #include <boost/system/error_category.hpp> |
7 | #include <boost/core/lightweight_test.hpp> |
8 | #include <boost/config.hpp> |
9 | #include <cerrno> |
10 | #include <system_error> |
11 | |
12 | class my_category_impl: public std::error_category |
13 | { |
14 | public: |
15 | |
16 | char const* name() const noexcept |
17 | { |
18 | return "mycat" ; |
19 | } |
20 | |
21 | std::string message( int /*ev*/ ) const |
22 | { |
23 | return "Unknown error" ; |
24 | } |
25 | }; |
26 | |
27 | std::error_category const& my_category() |
28 | { |
29 | static my_category_impl mycat; |
30 | return mycat; |
31 | } |
32 | |
33 | int main() |
34 | { |
35 | { |
36 | std::error_code e1( 5, boost::system::system_category() ); |
37 | boost::system::error_code e2( e1 ); |
38 | std::error_code e3( e2 ); |
39 | |
40 | BOOST_TEST_EQ( e1, e3 ); |
41 | BOOST_TEST_EQ( e1.value(), e3.value() ); |
42 | BOOST_TEST_EQ( &e1.category(), &e3.category() ); |
43 | } |
44 | |
45 | { |
46 | std::error_code e1( 5, boost::system::generic_category() ); |
47 | boost::system::error_code e2( e1 ); |
48 | std::error_code e3( e2 ); |
49 | |
50 | BOOST_TEST_EQ( e1, e3 ); |
51 | BOOST_TEST_EQ( e1.value(), e3.value() ); |
52 | BOOST_TEST_EQ( &e1.category(), &e3.category() ); |
53 | } |
54 | |
55 | { |
56 | std::error_code e1( 5, my_category() ); |
57 | boost::system::error_code e2( e1 ); |
58 | std::error_code e3( e2 ); |
59 | |
60 | BOOST_TEST_EQ( e1, e3 ); |
61 | BOOST_TEST_EQ( e1.value(), e3.value() ); |
62 | BOOST_TEST_EQ( &e1.category(), &e3.category() ); |
63 | } |
64 | |
65 | return boost::report_errors(); |
66 | } |
67 | |