forked from boostorg/core
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Copyright 2021 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/core/detail/string_view.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <boost/config/pragma_message.hpp>
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#include <boost/config.hpp>
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#include <string>
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#if BOOST_CXX_VERSION < 202000L
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BOOST_PRAGMA_MESSAGE( "Skipping test because BOOST_CXX_VERSION is " BOOST_STRINGIZE(BOOST_CXX_VERSION) )
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int main() {}
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#else
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#include <version>
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#if !defined(__cpp_lib_concepts)
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BOOST_PRAGMA_MESSAGE( "Skipping test because __cpp_lib_concepts is not defined" )
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int main() {}
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#elif __cpp_lib_concepts < 201907L
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BOOST_PRAGMA_MESSAGE( "Skipping test because __cpp_lib_concepts is " BOOST_STRINGIZE(__cpp_lib_concepts) )
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int main() {}
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#else
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#include <type_traits>
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using T = std::common_reference_t< boost::core::string_view&&, std::string& >;
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static_assert( std::common_reference_with< boost::core::string_view&&, std::string& > );
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static_assert( std::common_reference_with< boost::core::wstring_view&&, std::wstring const& > );
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int main()
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{
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BOOST_TEST_TRAIT_SAME( std::common_reference_t< boost::core::string_view&&, std::string& >, boost::core::string_view );
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BOOST_TEST_TRAIT_SAME( std::common_reference_t< boost::core::wstring_view&&, std::wstring const& >, boost::core::wstring_view );
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return boost::report_errors();
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}
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#endif
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#endif
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