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62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
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// Copyright 2023 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/mp11/list.hpp>
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#if !defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
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#pragma message("Test skipped because BOOST_MP11_HAS_TEMPLATE_AUTO is not defined")
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int main() {}
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#else
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#include <boost/mp11/integral.hpp>
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#include <boost/mp11/utility.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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template<auto... A> struct L1 {};
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template<int... I> struct L2 {};
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template<class N> using double_ = boost::mp11::mp_value< N::value * 2 >;
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using Q_double = boost::mp11::mp_quote<double_>;
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template<class N> using is_zero = boost::mp11::mp_bool< N::value == 0 >;
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using Q_is_zero = boost::mp11::mp_quote<is_zero>;
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int main()
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{
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using boost::mp11::mp_transform_third;
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using boost::mp11::mp_transform_third_q;
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//
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BOOST_TEST_TRAIT_SAME(mp_transform_third<L1<false, true, 3>, double_>, L1<false, true, 6>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third_q<L1<false, true, 3>, Q_double>, L1<false, true, 6>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third<L1<false, true, 3, 4>, double_>, L1<false, true, 6, 4>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third_q<L1<false, true, 3, 4>, Q_double>, L1<false, true, 6, 4>);
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//
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BOOST_TEST_TRAIT_SAME(mp_transform_third<L1<0, 1, 2>, is_zero>, L1<0, 1, false>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third_q<L1<0, 1, 2>, Q_is_zero>, L1<0, 1, false>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third<L1<0, 1, 2, 3>, is_zero>, L1<0, 1, false, 3>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third_q<L1<0, 1, 2, 3>, Q_is_zero>, L1<0, 1, false, 3>);
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//
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BOOST_TEST_TRAIT_SAME(mp_transform_third<L2<3, 2, 1>, double_>, L2<3, 2, 2>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third_q<L2<3, 2, 1>, Q_double>, L2<3, 2, 2>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third<L2<3, 2, 1, 0>, double_>, L2<3, 2, 2, 0>);
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BOOST_TEST_TRAIT_SAME(mp_transform_third_q<L2<3, 2, 1, 0>, Q_double>, L2<3, 2, 2, 0>);
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//
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return boost::report_errors();
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}
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#endif
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