ceph/src/boost/libs/mp11/test/mp_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/utility.hpp>
  11 #include <boost/mp11/integral.hpp>
  12 #include <boost/core/lightweight_test_trait.hpp>
  13 #include <type_traits>
  14
  15 int main()
  16 {
  17     using boost::mp11::mp_if_c;
  18
  19     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if_c<true, char[], void()>, char[]>));
  20     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if_c<false, char[], void()>, void()>));
  21
  22     using boost::mp11::mp_if;
  23
  24     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if<std::true_type, char[], void()>, char[]>));
  25     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if<std::false_type, char[], void()>, void()>));
  26
  27     using boost::mp11::mp_int;
  28
  29     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if<mp_int<-7>, char[], void()>, char[]>));
  30     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if<mp_int<0>, char[], void()>, void()>));
  31
  32     using boost::mp11::mp_size_t;
  33
  34     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if<mp_size_t<14>, char[], void()>, char[]>));
  35     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_if<mp_size_t<0>, char[], void()>, void()>));
  36
  37     return boost::report_errors();
  38 }