| 1 | // Copyright 2021, 2022 Peter Dimov. |
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| 2 | // Distributed under the Boost Software License, Version 1.0. |
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| 3 | // http://www.boost.org/LICENSE_1_0.txt |
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| 4 | |
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| 5 | #include <boost/system/error_code.hpp> |
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| 6 | #include <boost/system/error_condition.hpp> |
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| 7 | #include <boost/core/lightweight_test.hpp> |
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| 8 | #include <boost/config/pragma_message.hpp> |
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| 9 | #include <boost/config.hpp> |
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| 10 | #include <boost/config/workaround.hpp> |
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| 11 | |
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| 12 | #if defined(BOOST_SYSTEM_AVOID_STD_GENERIC_CATEGORY) |
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| 13 | |
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| 14 | BOOST_PRAGMA_MESSAGE( "Skipping test, BOOST_SYSTEM_AVOID_STD_GENERIC_CATEGORY is defined" ) |
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| 15 | int main() {} |
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| 16 | |
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| 17 | #else |
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| 18 | |
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| 19 | #include <system_error> |
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| 20 | |
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| 21 | namespace sys = boost::system; |
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| 22 | |
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| 23 | enum my_errc |
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| 24 | { |
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| 25 | enomem_c = ENOMEM |
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| 26 | }; |
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| 27 | |
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| 28 | enum my_errn |
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| 29 | { |
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| 30 | enomem_n = ENOMEM |
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| 31 | }; |
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| 32 | |
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| 33 | namespace std { |
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| 34 | |
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| 35 | template<> struct is_error_code_enum<my_errc> |
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| 36 | { |
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| 37 | static const bool value = true; |
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| 38 | }; |
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| 39 | |
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| 40 | template<> struct is_error_condition_enum<my_errn> |
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| 41 | { |
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| 42 | static const bool value = true; |
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| 43 | }; |
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| 44 | |
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| 45 | } // namespace std |
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| 46 | |
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| 47 | std::error_code make_error_code( my_errc e ) |
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| 48 | { |
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| 49 | return std::error_code( e, std::generic_category() ); |
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| 50 | } |
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| 51 | |
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| 52 | std::error_condition make_error_condition( my_errn e ) |
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| 53 | { |
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| 54 | return std::error_condition( e, std::generic_category() ); |
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| 55 | } |
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| 56 | |
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| 57 | int main() |
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| 58 | { |
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| 59 | sys::error_code ec = make_error_code( e: sys::errc::not_enough_memory ); |
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| 60 | sys::error_condition en( sys::errc::not_enough_memory ); |
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| 61 | |
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| 62 | BOOST_TEST_EQ( ec, en ); |
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| 63 | BOOST_TEST_EQ( en, ec ); |
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| 64 | |
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| 65 | BOOST_TEST_EQ( ec, enomem_c ); |
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| 66 | BOOST_TEST_EQ( enomem_c, ec ); |
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| 67 | |
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| 68 | BOOST_TEST_EQ( ec, enomem_n ); |
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| 69 | BOOST_TEST_EQ( enomem_n, ec ); |
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| 70 | |
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| 71 | BOOST_TEST_EQ( en, enomem_c ); |
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| 72 | BOOST_TEST_EQ( enomem_c, en ); |
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| 73 | |
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| 74 | #if BOOST_WORKAROUND(BOOST_MSVC, == 1800) |
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| 75 | |
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| 76 | // msvc-12.0 has op== as a member of std::error_condition |
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| 77 | |
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| 78 | #else |
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| 79 | |
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| 80 | BOOST_TEST_EQ( en, enomem_n ); |
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| 81 | |
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| 82 | #endif |
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| 83 | |
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| 84 | BOOST_TEST_EQ( enomem_n, en ); |
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| 85 | |
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| 86 | return boost::report_errors(); |
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| 87 | } |
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| 88 | |
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| 89 | #endif |
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| 90 | |
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