ceph/src/boost/libs/describe/test/has_members_test.cpp

   1 // Copyright 2021 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #include <boost/describe/members.hpp>
   6 #include <boost/describe/class.hpp>
   7 #include <boost/core/lightweight_test_trait.hpp>
   8
   9 #if !defined(BOOST_DESCRIBE_CXX11)
  10
  11 #include <boost/config/pragma_message.hpp>
  12
  13 BOOST_PRAGMA_MESSAGE("Skipping test because C++11 is not available")
  14 int main() {}
  15
  16 #else
  17
  18 struct X1 {};
  19 BOOST_DESCRIBE_STRUCT(X1, (), ())
  20
  21 class X2
  22 {
  23     BOOST_DESCRIBE_CLASS(X2, (), (), (), ())
  24 };
  25
  26 struct X3 {};
  27 class X4 {};
  28 union X5 {};
  29
  30 struct X6: X1 {};
  31 struct X7: X2 {};
  32
  33 int main()
  34 {
  35     using boost::describe::has_describe_members;
  36
  37 #if defined(BOOST_DESCRIBE_CXX14)
  38
  39     BOOST_TEST_TRAIT_TRUE((has_describe_members<X1>));
  40     BOOST_TEST_TRAIT_TRUE((has_describe_members<X2>));
  41
  42 #else
  43
  44     BOOST_TEST_TRAIT_FALSE((has_describe_members<X1>));
  45     BOOST_TEST_TRAIT_FALSE((has_describe_members<X2>));
  46
  47 #endif
  48
  49     BOOST_TEST_TRAIT_FALSE((has_describe_members<X3>));
  50     BOOST_TEST_TRAIT_FALSE((has_describe_members<X4>));
  51     BOOST_TEST_TRAIT_FALSE((has_describe_members<X5>));
  52     BOOST_TEST_TRAIT_FALSE((has_describe_members<X6>));
  53     BOOST_TEST_TRAIT_FALSE((has_describe_members<X7>));
  54     BOOST_TEST_TRAIT_FALSE((has_describe_members<int>));
  55     BOOST_TEST_TRAIT_FALSE((has_describe_members<void>));
  56
  57     return boost::report_errors();
  58 }
  59
  60 #endif // !defined(BOOST_DESCRIBE_CXX11)