forked from boostorg/mp11
41 lines
1.1 KiB
C++
41 lines
1.1 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/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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int main()
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{
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using boost::mp11::mp_list;
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using boost::mp11::mp_empty;
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using boost::mp11::mp_true;
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using boost::mp11::mp_false;
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BOOST_TEST_TRAIT_SAME(mp_empty<L1<>>, mp_true);
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BOOST_TEST_TRAIT_SAME(mp_empty<L1<false>>, mp_false);
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BOOST_TEST_TRAIT_SAME(mp_empty<L1<false, 0>>, mp_false);
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BOOST_TEST_TRAIT_SAME(mp_empty<L1<false, 0, std::size_t(0)>>, mp_false);
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BOOST_TEST_TRAIT_SAME(mp_empty<L2<>>, mp_true);
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BOOST_TEST_TRAIT_SAME(mp_empty<L2<0>>, mp_false);
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BOOST_TEST_TRAIT_SAME(mp_empty<L2<0, 1>>, mp_false);
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BOOST_TEST_TRAIT_SAME(mp_empty<L2<0, 1, 2>>, mp_false);
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return boost::report_errors();
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}
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#endif
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