ceph/src/boost/libs/describe/test/pp_is_empty_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/detail/pp_utilities.hpp>
   6 #include <boost/describe/detail/config.hpp>
   7 #include <boost/core/lightweight_test.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 #define S(x) S2(x)
  19 #define S2(x) #x
  20
  21 #if defined(_MSC_VER)
  22 # pragma warning(disable: 4003) // not enough arguments for macro invocation
  23 #endif
  24
  25 char const * s1 = S(BOOST_DESCRIBE_PP_IS_EMPTY());
  26 char const * s2 = S(BOOST_DESCRIBE_PP_IS_EMPTY(x));
  27 char const * s3 = S(BOOST_DESCRIBE_PP_IS_EMPTY(() x));
  28 char const * s4 = S(BOOST_DESCRIBE_PP_IS_EMPTY((a, b) x));
  29
  30 int main()
  31 {
  32     BOOST_TEST_CSTR_EQ( s1, "1" );
  33     BOOST_TEST_CSTR_EQ( s2, "0" );
  34     BOOST_TEST_CSTR_EQ( s3, "0" );
  35     BOOST_TEST_CSTR_EQ( s4, "0" );
  36
  37     return boost::report_errors();
  38 }
  39
  40 #endif // !defined(BOOST_DESCRIBE_CXX11)