mirror of
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108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
// Copyright 2017, 2022 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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#if defined(__clang__)
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# pragma clang diagnostic ignored "-Wmismatched-tags"
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#endif
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#include <boost/container_hash/is_tuple_like.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <boost/config.hpp>
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#include <boost/config/workaround.hpp>
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#include <utility>
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struct X
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{
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};
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#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
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#include <tuple>
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namespace user
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{
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struct Y
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{
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int a;
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int b;
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};
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template<std::size_t I> int& get( Y& v );
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template<std::size_t I> int const& get( Y const& v );
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template<> int& get<0>( Y& v )
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{
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return v.a;
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}
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template<> int const& get<0>( Y const& v )
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{
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return v.a;
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}
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template<> int& get<1>( Y& v )
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{
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return v.b;
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}
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template<> int const& get<1>( Y const& v )
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{
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return v.b;
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}
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} // namespace user
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namespace std
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{
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template<> struct tuple_size<user::Y>: std::integral_constant<std::size_t, 2>
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{
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};
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} // namespace std
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#endif // #if !defined(BOOST_NO_CXX11_HDR_TUPLE)
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int main()
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{
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using boost::container_hash::is_tuple_like;
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<void>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<void const>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<int>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<int const>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<X>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<X const>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<int[2]>));
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BOOST_TEST_TRAIT_FALSE((is_tuple_like<int const [2]>));
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#if !defined(BOOST_NO_CXX11_HDR_TUPLE) && !BOOST_WORKAROUND(BOOST_MSVC, <= 1800)
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::pair<int, X> >));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::pair<int, X> const>));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<> >));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<> const>));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<X> >));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<X> const>));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<X, X> >));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<X, X> const>));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<X, X, X> >));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::tuple<X, X, X> const>));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like<user::Y>));
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BOOST_TEST_TRAIT_TRUE((is_tuple_like<user::Y const>));
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#endif
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return boost::report_errors();
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}
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