is_empty_test.cpp 1.9 KB

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  1. // (C) Copyright John Maddock 2000.
  2. // Use, modification and distribution are subject to the
  3. // Boost Software License, Version 1.0. (See accompanying file
  4. // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. #ifdef TEST_STD
  6. # include <type_traits>
  7. #else
  8. # include <boost/type_traits/is_empty.hpp>
  9. #endif
  10. #include "test.hpp"
  11. #include "check_integral_constant.hpp"
  12. struct non_default_constructable_UDT
  13. {
  14. non_default_constructable_UDT(const non_default_constructable_UDT&){}
  15. private:
  16. non_default_constructable_UDT(){}
  17. };
  18. TT_TEST_BEGIN(is_empty)
  19. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int>::value, false);
  20. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int*>::value, false);
  21. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int&>::value, false);
  22. #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  23. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int&&>::value, false);
  24. #endif
  25. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<void>::value, false);
  26. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int[2]>::value, false);
  27. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<f1>::value, false);
  28. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<mf1>::value, false);
  29. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<UDT>::value, false);
  30. BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<empty_UDT>::value, true, false);
  31. BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<empty_POD_UDT>::value, true, false);
  32. BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<non_default_constructable_UDT>::value, true, false);
  33. BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<boost::noncopyable>::value, true, false);
  34. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<enum_UDT>::value, false);
  35. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<non_empty>::value, false);
  36. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<const non_empty&>::value, false);
  37. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<foo4_t>::value, false);
  38. TT_TEST_END