ceph/src/boost/libs/mp11/test/mp_find_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
  21 int main()
  22 {
  23     using boost::mp11::mp_list;
  24     using boost::mp11::mp_find_if_q;
  25     using boost::mp11::mp_size_t;
  26     using boost::mp11::mp_quote;
  27
  28     {
  29         using L1 = mp_list<>;
  30
  31         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L1, mp_quote<std::is_const>>, mp_size_t<0>>));
  32
  33         using L2 = mp_list<X1, X1 const, X1 const, X1*, X1*, X1*>;
  34
  35         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_volatile>>, mp_size_t<6>>));
  36         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_const>>, mp_size_t<1>>));
  37         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_pointer>>, mp_size_t<3>>));
  38     }
  39
  40     {
  41         using L1 = std::tuple<>;
  42
  43         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L1, mp_quote<std::is_const>>, mp_size_t<0>>));
  44
  45         using L2 = std::tuple<X1, X1 const, X1 const, X1*, X1*, X1*>;
  46
  47         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_volatile>>, mp_size_t<6>>));
  48         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_const>>, mp_size_t<1>>));
  49         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_pointer>>, mp_size_t<3>>));
  50     }
  51
  52     {
  53         using L2 = std::pair<X1 const, X1*>;
  54
  55         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_volatile>>, mp_size_t<2>>));
  56         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_const>>, mp_size_t<0>>));
  57         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if_q<L2, mp_quote<std::is_pointer>>, mp_size_t<1>>));
  58     }
  59
  60     return boost::report_errors();
  61 }