ceph/src/boost/libs/mp11/test/mp_at_sf.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/utility.hpp>
  11 #include <boost/mp11/algorithm.hpp>
  12 #include <boost/core/lightweight_test_trait.hpp>
  13 #include <type_traits>
  14
  15 using boost::mp11::mp_valid;
  16 using boost::mp11::mp_at;
  17 using boost::mp11::mp_size_t;
  18 using boost::mp11::mp_list;
  19
  20 int main()
  21 {
  22     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at>));
  23     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, void>));
  24     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, void, void>));
  25     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, void, void, void>));
  26
  27     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, void, mp_size_t<0>>));
  28
  29     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, mp_list<>, mp_size_t<0>>));
  30
  31     BOOST_TEST_TRAIT_TRUE((mp_valid<mp_at, mp_list<void>, mp_size_t<0>>));
  32     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, mp_list<void>, mp_size_t<1>>));
  33
  34     BOOST_TEST_TRAIT_TRUE((mp_valid<mp_at, mp_list<void, void>, mp_size_t<0>>));
  35     BOOST_TEST_TRAIT_TRUE((mp_valid<mp_at, mp_list<void, void>, mp_size_t<1>>));
  36     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_at, mp_list<void, void>, mp_size_t<2>>));
  37
  38     return boost::report_errors();
  39 }