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

   1 //  (C) Copyright John Maddock 2000.
   2 //  (C) Copyright Antony Polukhin 2013.
   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 #ifdef TEST_STD
   8 #  include <type_traits>
   9 #else
  10 #  include <boost/type_traits/is_copy_constructible.hpp>
  11 #endif
  12 #include "test.hpp"
  13 #include "check_integral_constant.hpp"
  14
  15 #include <boost/move/core.hpp>
  16
  17 struct has {
  18     has(){}
  19     has(const has&){}
  20 };
  21
  22 // MSVC can not generate neither default constructor, nor assignment operator,
  23 // nor copy constructor for `has2` type. Suppressing those warnings is essential,
  24 // because we treat warnings as errors in those tests
  25 #if (defined _MSC_VER)
  26 # pragma warning( push )
  27 # pragma warning( disable : 4510 4512 4610)
  28 #endif
  29 struct has2 {
  30     const int& i;
  31     explicit has2(const int& val) : i(val) {}
  32 };
  33 #if (defined _MSC_VER)
  34 # pragma warning( pop )
  35 #endif
  36
  37 struct has3 {
  38     has3(has3&){}
  39 };
  40
  41
  42 struct has4 { // Copy constructor must be generated by compiler
  43     has4(has4*){}
  44 };
  45
  46 struct has_not: public boost::noncopyable {
  47     typedef boost::noncopyable base_t;
  48     has_not() : base_t() {}
  49 };
  50
  51 #ifndef BOOST_NO_CXX11_DELETED_FUNCTIONS
  52
  53 struct has_not2 {
  54     has_not2() {}
  55     has_not2(has_not2&) = delete;
  56 };
  57
  58 struct has_not3 {
  59     has_not3() {}
  60     has_not3(const has_not3&) = delete;
  61 };
  62
  63 #endif // BOOST_NO_CXX11_DELETED_FUNCTIONS
  64
  65 struct has_not4: private boost::noncopyable {
  66     typedef boost::noncopyable base_t;
  67     has_not4() : base_t() {}
  68 private:
  69     has_not4(const has_not4&);
  70 };
  71
  72 struct has_not5 {
  73 private:
  74     BOOST_MOVABLE_BUT_NOT_COPYABLE(has_not5)
  75 };
  76
  77
  78 TT_TEST_BEGIN(is_copy_constructible)
  79
  80 // Main part of the test
  81 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has>::value, true);
  82 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has2>::value, true);
  83 // Only constructible from has3& not from const-reference, this only works if we have decltype:
  84 #if !defined(BOOST_NO_CXX11_DECLTYPE) && !BOOST_WORKAROUND(BOOST_MSVC, < 1800)
  85 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has3>::value, false);
  86 #endif
  87 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has4>::value, true);
  88 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has_not>::value, false);
  89 #if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) && !defined(BOOST_INTEL_CXX_VERSION)
  90 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has_not2>::value, false);
  91 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has_not3>::value, false);
  92 #endif
  93 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has_not4>::value, false);
  94
  95 // Requires some basic support from Boost.Move in C++03
  96 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<has_not5>::value, false);
  97
  98 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<bool>::value, true);
  99 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<bool const>::value, true);
 100 #ifndef TEST_STD
 101 // unspecified behaviour:
 102 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<bool volatile>::value, true);
 103 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<bool const volatile>::value, true);
 104 #endif
 105
 106 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<signed char>::value, true);
 107 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<signed char const>::value, true);
 108 #ifndef TEST_STD
 109 // unspecified behaviour:
 110 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<signed char volatile>::value, true);
 111 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<signed char const volatile>::value, true);
 112 #endif
 113 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned char>::value, true);
 114 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<char>::value, true);
 115 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned char const>::value, true);
 116 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<char const>::value, true);
 117 #ifndef TEST_STD
 118 // unspecified behaviour:
 119 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned char volatile>::value, true);
 120 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<char volatile>::value, true);
 121 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned char const volatile>::value, true);
 122 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<char const volatile>::value, true);
 123 #endif
 124
 125 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned short>::value, true);
 126 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<short>::value, true);
 127 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned short const>::value, true);
 128 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<short const>::value, true);
 129 #ifndef TEST_STD
 130 // unspecified behaviour:
 131 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned short volatile>::value, true);
 132 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<short volatile>::value, true);
 133 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned short const volatile>::value, true);
 134 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<short const volatile>::value, true);
 135 #endif
 136
 137 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned int>::value, true);
 138 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int>::value, true);
 139 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned int const>::value, true);
 140 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int const>::value, true);
 141 #ifndef TEST_STD
 142 // unspecified behaviour:
 143 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned int volatile>::value, true);
 144 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int volatile>::value, true);
 145 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned int const volatile>::value, true);
 146 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int const volatile>::value, true);
 147 #endif
 148
 149 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned long>::value, true);
 150 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long>::value, true);
 151 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned long const>::value, true);
 152 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long const>::value, true);
 153 #ifndef TEST_STD
 154 // unspecified behaviour:
 155 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned long volatile>::value, true);
 156 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long volatile>::value, true);
 157 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned long const volatile>::value, true);
 158 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long const volatile>::value, true);
 159 #endif
 160
 161 #ifdef BOOST_HAS_LONG_LONG
 162
 163 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::ulong_long_type>::value, true);
 164 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::long_long_type>::value, true);
 165 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::ulong_long_type const>::value, true);
 166 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::long_long_type const>::value, true);
 167 #ifndef TEST_STD
 168 // unspecified behaviour:
 169 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::ulong_long_type volatile>::value, true);
 170 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::long_long_type volatile>::value, true);
 171 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::ulong_long_type const volatile>::value, true);
 172 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible< ::boost::long_long_type const volatile>::value, true);
 173 #endif
 174 #endif
 175
 176 #ifdef BOOST_HAS_MS_INT64
 177
 178 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int8>::value, true);
 179 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int8>::value, true);
 180 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int8 const>::value, true);
 181 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int8 const>::value, true);
 182 #ifndef TEST_STD
 183 // unspecified behaviour:
 184 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int8 volatile>::value, true);
 185 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int8 volatile>::value, true);
 186 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int8 const volatile>::value, true);
 187 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int8 const volatile>::value, true);
 188 #endif
 189
 190 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int16>::value, true);
 191 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int16>::value, true);
 192 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int16 const>::value, true);
 193 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int16 const>::value, true);
 194 #ifndef TEST_STD
 195 // unspecified behaviour:
 196 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int16 volatile>::value, true);
 197 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int16 volatile>::value, true);
 198 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int16 const volatile>::value, true);
 199 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int16 const volatile>::value, true);
 200 #endif
 201
 202 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int32>::value, true);
 203 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int32>::value, true);
 204 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int32 const>::value, true);
 205 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int32 const>::value, true);
 206 #ifndef TEST_STD
 207 // unspecified behaviour:
 208 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int32 volatile>::value, true);
 209 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int32 volatile>::value, true);
 210 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int32 const volatile>::value, true);
 211 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int32 const volatile>::value, true);
 212 #endif
 213
 214 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int64>::value, true);
 215 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int64>::value, true);
 216 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int64 const>::value, true);
 217 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int64 const>::value, true);
 218 #ifndef TEST_STD
 219 // unspecified behaviour:
 220 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int64 volatile>::value, true);
 221 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int64 volatile>::value, true);
 222 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<unsigned __int64 const volatile>::value, true);
 223 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<__int64 const volatile>::value, true);
 224 #endif
 225 #endif
 226
 227 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<float>::value, true);
 228 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<float const>::value, true);
 229 #ifndef TEST_STD
 230 // unspecified behaviour:
 231 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<float volatile>::value, true);
 232 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<float const volatile>::value, true);
 233 #endif
 234
 235 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<double>::value, true);
 236 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<double const>::value, true);
 237 #ifndef TEST_STD
 238 // unspecified behaviour:
 239 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<double volatile>::value, true);
 240 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<double const volatile>::value, true);
 241 #endif
 242
 243 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long double>::value, true);
 244 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long double const>::value, true);
 245 #ifndef TEST_STD
 246 // unspecified behaviour:
 247 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long double volatile>::value, true);
 248 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<long double const volatile>::value, true);
 249 #endif
 250
 251 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int>::value, true);
 252 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<void*>::value, true);
 253 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int*const>::value, true);
 254 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<f1>::value, true);
 255 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<f2>::value, true);
 256 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<f3>::value, true);
 257 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<mf1>::value, true);
 258 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<mf2>::value, true);
 259 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<mf3>::value, true);
 260 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<mp>::value, true);
 261 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<cmf>::value, true);
 262 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<enum_UDT>::value, true);
 263
 264 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int&>::value, true);
 265 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
 266 // This is debatable, we used to insist this was true, but copy-constructibility
 267 // implies copying a constant-object, and that isn't the case here:
 268 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int&&>::value, false);
 269 #endif
 270 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<const int&>::value, true);
 271
 272
 273 // Following three tests may give different results because of compiler and C++03/C++11.
 274 // On C++11 compiler following code:
 275 //      int c[2][4][5][6][3];
 276 //      int b[2][4][5][6][3] = std::move(c);
 277 // does not compile, so we expect `false` to be the result of those three tests.
 278 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int[2]>::value, false, true);
 279 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int[3][2]>::value, false, true);
 280 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_copy_constructible<int[2][4][5][6][3]>::value, false, true);
 281
 282 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<UDT>::value, true);
 283 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<void>::value, false);
 284
 285 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<empty_POD_UDT>::value, true);
 286 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<POD_UDT>::value, true);
 287 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<POD_union_UDT>::value, true);
 288 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<empty_POD_union_UDT>::value, true);
 289 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<nothrow_copy_UDT>::value, true);
 290 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<nothrow_assign_UDT>::value, true);
 291 BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<nothrow_construct_UDT>::value, true);
 292
 293 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_NOEXCEPT)
 294 // Copy constructor of nothrow_move_UDT is implicitly deleted because of user declared move constructor.
 295 // Hovewer not all compilers implement that feature correctly.
 296 BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::is_copy_constructible<nothrow_move_UDT>::value, false, true);
 297 #endif
 298
 299 //TODO: What do we need to do in this situation?
 300 //BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_copy_constructible<test_abc1>::value, true);
 301
 302
 303 TT_TEST_END
 304
 305
 306