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

   1
   2 //  Copyright 2015 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/core/lightweight_test_trait.hpp>
  14 #include <type_traits>
  15 #include <tuple>
  16 #include <utility>
  17
  18 struct X1 {};
  19
  20 int main()
  21 {
  22     using boost::mp11::mp_list;
  23     using boost::mp11::mp_find_if;
  24     using boost::mp11::mp_size_t;
  25
  26     {
  27         using L1 = mp_list<>;
  28
  29         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L1, std::is_const>, mp_size_t<0>>));
  30
  31         using L2 = mp_list<X1, X1 const, X1 const, X1*, X1*, X1*>;
  32
  33         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_volatile>, mp_size_t<6>>));
  34         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_const>, mp_size_t<1>>));
  35         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_pointer>, mp_size_t<3>>));
  36     }
  37
  38     {
  39         using L1 = std::tuple<>;
  40
  41         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L1, std::is_const>, mp_size_t<0>>));
  42
  43         using L2 = std::tuple<X1, X1 const, X1 const, X1*, X1*, X1*>;
  44
  45         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_volatile>, mp_size_t<6>>));
  46         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_const>, mp_size_t<1>>));
  47         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_pointer>, mp_size_t<3>>));
  48     }
  49
  50     {
  51         using L2 = std::pair<X1 const, X1*>;
  52
  53         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_volatile>, mp_size_t<2>>));
  54         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_const>, mp_size_t<0>>));
  55         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_pointer>, mp_size_t<1>>));
  56     }
  57
  58     return boost::report_errors();
  59 }