forked from boostorg/mp11
51 lines
2.0 KiB
C++
51 lines
2.0 KiB
C++
// 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/algorithm.hpp>
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#include <boost/mp11/list.hpp>
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#include <boost/mp11/integral.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <type_traits>
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#include <tuple>
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using boost::mp11::mp_size_t;
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struct Q
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{
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template<class N, class T> using fn = mp_size_t<N::value + sizeof(T)>;
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};
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int main()
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{
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using boost::mp11::mp_valid;
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using boost::mp11::mp_fold_q;
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using boost::mp11::mp_list;
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BOOST_TEST_TRAIT_TRUE((mp_valid<mp_fold_q, mp_list<>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_TRUE((mp_valid<mp_fold_q, mp_list<int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_TRUE((mp_valid<mp_fold_q, mp_list<int, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_TRUE((mp_valid<mp_fold_q, mp_list<int, int, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_TRUE((mp_valid<mp_fold_q, mp_list<int, int, int, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<void>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<int, void>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<int, int, void>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<int, int, int, void>, mp_size_t<0>, Q>));
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#if !BOOST_MP11_WORKAROUND( BOOST_MP11_MSVC, < 1910 )
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<void, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<void, int, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<void, int, int, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<int, void, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<int, void, int, int>, mp_size_t<0>, Q>));
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BOOST_TEST_TRAIT_FALSE((mp_valid<mp_fold_q, mp_list<int, int, void, int>, mp_size_t<0>, Q>));
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#endif
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return boost::report_errors();
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}
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