ceph/src/boost/libs/type_traits/test/is_empty_test.cpp

   1
   2 //  (C) Copyright John Maddock 2000.
   3 //  Use, modification and distribution are subject to the
   4 //  Boost Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include "test.hpp"
   8 #include "check_integral_constant.hpp"
   9 #ifdef TEST_STD
  10 #  include <type_traits>
  11 #else
  12 #  include <boost/type_traits/is_empty.hpp>
  13 #endif
  14
  15 struct non_default_constructable_UDT
  16 {
  17    non_default_constructable_UDT(const non_default_constructable_UDT&){}
  18 private:
  19    non_default_constructable_UDT(){}
  20 };
  21
  22 TT_TEST_BEGIN(is_empty)
  23
  24 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int>::value, false);
  25 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int*>::value, false);
  26 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int&>::value, false);
  27 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  28 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int&&>::value, false);
  29 #endif
  30 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<void>::value, false);
  31 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<int[2]>::value, false);
  32 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<f1>::value, false);
  33 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<mf1>::value, false);
  34 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<UDT>::value, false);
  35
  36 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<empty_UDT>::value, true, false);
  37 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<empty_POD_UDT>::value, true, false);
  38 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<non_default_constructable_UDT>::value, true, false);
  39 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_empty<boost::noncopyable>::value, true, false);
  40
  41 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<enum_UDT>::value, false);
  42 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<non_empty>::value, false);
  43 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<const non_empty&>::value, false);
  44 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_empty<foo4_t>::value, false);
  45
  46 TT_TEST_END
  47
  48
  49
  50
  51
  52
  53
  54