44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
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// Copyright 2017 Peter Dimov.
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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#include <boost/mp11/algorithm.hpp>
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#include <boost/mp11/utility.hpp>
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#include <boost/mp11/list.hpp>
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#include <boost/mp11/detail/config.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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using boost::mp11::mp_transform;
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using boost::mp11::mp_list;
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using boost::mp11::mp_valid;
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template<class...> using F = void;
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template<class... L> using transform = mp_transform<F, L...>;
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int main()
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{
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void, void>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void, void, void>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void, void, void, void>));
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#if !BOOST_MP11_WORKAROUND( BOOST_MP11_MSVC, <= 1800 )
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BOOST_TEST_TRAIT_TRUE((mp_valid<transform, mp_list<>>));
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#endif
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<void>>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<>, mp_list<void>>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<>, mp_list<>, mp_list<void>>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<>, mp_list<>, mp_list<>, mp_list<void>>));
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return boost::report_errors();
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}
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