94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
// Copyright 2015 Peter Dimov.
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// Copyright 2019 Kris Jusiak.
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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/detail/config.hpp>
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#if BOOST_MP11_WORKAROUND( BOOST_MP11_GCC, < 40800 )
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# pragma GCC diagnostic ignored "-Wsign-compare"
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#endif
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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/mp11/utility.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_bool;
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#if !BOOST_MP11_WORKAROUND( BOOST_MSVC, < 1910 )
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struct Q1
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{
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template<class T, class U> using fn = mp_bool< T::value == U::value >;
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};
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struct Q2
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{
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template<class T, class U> using fn = mp_bool< sizeof(T) == sizeof(U) >;
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};
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#else
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struct Q1
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{
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template<class T, class U> struct fn: mp_bool< T::value == U::value > {};
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};
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struct Q2
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{
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template<class T, class U> struct fn: mp_bool< sizeof(T) == sizeof(U) > {};
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};
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#endif
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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_unique_if_q;
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using boost::mp11::mp_quote_trait;
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{
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using boost::mp11::mp_iota_c;
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using boost::mp11::mp_size_t;
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using L1 = mp_iota_c<32>;
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using R1 = mp_unique_if_q<L1, mp_quote_trait<std::is_same>>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R1, L1>));
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using R2 = mp_unique_if_q<L1, Q1>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R2, L1>));
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using R3 = mp_unique_if_q<L1, Q2>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R3, mp_list<mp_size_t<0>>>));
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}
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{
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using boost::mp11::mp_list_c;
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using boost::mp11::mp_append;
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using boost::mp11::mp_push_back;
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using boost::mp11::mp_int;
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using L1 = mp_list_c<std::size_t, 0, 1, 2, 3>;
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using L2 = mp_list_c<int, 1, 2, 3, 4>;
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using L3 = mp_list_c<long, 2, 3, 4, 5>;
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using R1 = mp_unique_if_q<mp_append<L1, L2, L3>, Q1>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R1, mp_push_back<L1, mp_int<4>, std::integral_constant<long, 5>>>));
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}
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{
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_unique_if_q<std::tuple<char[1], char[2], char[1], char[2], char[2], char[1], char[2], char[2], char[2]>, Q2>, std::tuple<char[1], char[2]>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_unique_if_q<std::tuple<char[1], char[2], char[3], char[1], char[2], char[3], char[1], char[2], char[3]>, Q2>, std::tuple<char[1], char[2], char[3]>>));
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}
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return boost::report_errors();
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}
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