ceph/src/boost/libs/mp11/test/mp_transform_if_q.cpp

   1
   2 // Copyright 2015, 2017 Peter Dimov.
   3 //
   4 // Distributed under the Boost Software License, Version 1.0.
   5 //
   6 // See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt
   8
   9
  10 #include <boost/mp11/algorithm.hpp>
  11 #include <boost/mp11/list.hpp>
  12 #include <boost/mp11/integral.hpp>
  13 #include <boost/mp11/utility.hpp>
  14 #include <boost/core/lightweight_test_trait.hpp>
  15 #include <type_traits>
  16 #include <tuple>
  17 #include <utility>
  18
  19 struct X1 {};
  20 struct X2 {};
  21 struct X3 {};
  22 struct X4 {};
  23
  24 using boost::mp11::mp_not;
  25 using boost::mp11::mp_quote;
  26
  27 template<class T> using add_pointer = T*;
  28 using Q_add_pointer = mp_quote<add_pointer>;
  29
  30 template<class T, class...> using is_not_ref = mp_not<std::is_reference<T>>;
  31 using Q_is_not_ref = mp_quote<is_not_ref>;
  32
  33 template<class T1, class T2> using second = T2;
  34 using Q_second = mp_quote<second>;
  35
  36 template<class T1, class T2, class T3> using third = T3;
  37 using Q_third = mp_quote<third>;
  38
  39 template<class T1, class T2, class T3, class T4> using fourth = T4;
  40 using Q_fourth = mp_quote<fourth>;
  41
  42 template<class T1, class T2, class T3, class T4, class T5> using fifth = T5;
  43 using Q_fifth = mp_quote<fifth>;
  44
  45 int main()
  46 {
  47     using boost::mp11::mp_list;
  48     using boost::mp11::mp_transform_if_q;
  49     using boost::mp11::mp_size_t;
  50     using boost::mp11::mp_size;
  51     using boost::mp11::mp_fill;
  52     using boost::mp11::mp_iota;
  53
  54     using L1 = mp_list<X1, X2&, X3 const, X4 const&>;
  55
  56     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_add_pointer, L1>, mp_list<X1*, X2&, X3 const*, X4 const&>>));
  57
  58     using L2 = std::tuple<X1, X2&, X3 const, X4 const&>;
  59
  60     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_add_pointer, L2>, std::tuple<X1*, X2&, X3 const*, X4 const&>>));
  61
  62     using L3 = std::pair<X1 const, X2&>;
  63
  64     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_add_pointer, L3>, std::pair<X1 const*, X2&>>));
  65
  66     //
  67
  68     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_second, L1, mp_fill<L1, void>>, mp_list<void, X2&, void, X4 const&>>));
  69     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_second, L2, mp_fill<L2, void>>, std::tuple<void, X2&, void, X4 const&>>));
  70     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_second, L3, mp_fill<L3, void>>, std::pair<void, X2&>>));
  71
  72     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_third, L1, L1, mp_iota<mp_size<L1>>>, mp_list<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
  73     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_third, L2, L2, mp_iota<mp_size<L2>>>, std::tuple<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
  74     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_third, L3, L3, mp_iota<mp_size<L3>>>, std::pair<mp_size_t<0>, X2&>>));
  75
  76     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_fourth, L1, L1, L1, mp_iota<mp_size<L1>>>, mp_list<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
  77     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_fourth, L2, L2, L2, mp_iota<mp_size<L2>>>, std::tuple<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
  78     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_fourth, L3, L3, L3, mp_iota<mp_size<L3>>>, std::pair<mp_size_t<0>, X2&>>));
  79
  80     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_fifth, L1, L1, L1, L1, mp_iota<mp_size<L1>>>, mp_list<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
  81     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_fifth, L2, L2, L2, L2, mp_iota<mp_size<L2>>>, std::tuple<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
  82     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if_q<Q_is_not_ref, Q_fifth, L3, L3, L3, L3, mp_iota<mp_size<L3>>>, std::pair<mp_size_t<0>, X2&>>));
  83
  84     //
  85
  86     return boost::report_errors();
  87 }