main/libstdc++-v3/testsuite/20_util/is_assignable/value.cc

   1 // { dg-options "-std=gnu++0x" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2011-2013 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <type_traits>
  22 #include <initializer_list>
  23 #include <testsuite_tr1.h>
  24
  25 using namespace __gnu_test::assign;
  26
  27 static_assert(std::is_assignable<int&, int>::value, "Error");
  28 static_assert(std::is_assignable<int&, const int>::value, "Error");
  29 static_assert(std::is_assignable<int&, int&>::value, "Error");
  30 static_assert(std::is_assignable<int&, const int&>::value, "Error");
  31
  32 static_assert(!std::is_assignable<int, int>::value, "Error");
  33 static_assert(!std::is_assignable<int, const int>::value, "Error");
  34 static_assert(!std::is_assignable<int, int&>::value, "Error");
  35 static_assert(!std::is_assignable<int, const int&>::value, "Error");
  36
  37 static_assert(!std::is_assignable<const int, int>::value, "Error");
  38 static_assert(!std::is_assignable<const int, const int>::value, "Error");
  39 static_assert(!std::is_assignable<const int, int&>::value, "Error");
  40 static_assert(!std::is_assignable<const int, const int&>::value, "Error");
  41
  42 static_assert(!std::is_assignable<const int&, int>::value, "Error");
  43 static_assert(!std::is_assignable<const int&, const int>::value, "Error");
  44 static_assert(!std::is_assignable<const int&, int&>::value, "Error");
  45 static_assert(!std::is_assignable<const int&, const int&>::value, "Error");
  46
  47 static_assert(std::is_assignable<Empty&, Empty>::value, "Error");
  48 static_assert(std::is_assignable<Empty&, const Empty>::value, "Error");
  49 static_assert(std::is_assignable<Empty&, Empty&>::value, "Error");
  50 static_assert(std::is_assignable<Empty&, const Empty&>::value, "Error");
  51 static_assert(std::is_assignable<Empty, Empty>::value, "Error");
  52 static_assert(std::is_assignable<Empty, const Empty>::value, "Error");
  53 static_assert(std::is_assignable<Empty, Empty&>::value, "Error");
  54 static_assert(std::is_assignable<Empty, const Empty&>::value, "Error");
  55
  56 static_assert(std::is_assignable<B&, B>::value, "Error");
  57 static_assert(std::is_assignable<B&, const B>::value, "Error");
  58 static_assert(std::is_assignable<B&, B&>::value, "Error");
  59 static_assert(std::is_assignable<B&, const B&>::value, "Error");
  60 static_assert(std::is_assignable<B, B>::value, "Error");
  61 static_assert(std::is_assignable<B, const B>::value, "Error");
  62 static_assert(std::is_assignable<B, B&>::value, "Error");
  63 static_assert(std::is_assignable<B, const B&>::value, "Error");
  64
  65 static_assert(std::is_assignable<bool&, bool>::value, "Error");
  66 static_assert(std::is_assignable<bool&, const bool>::value, "Error");
  67 static_assert(std::is_assignable<bool&, bool&>::value, "Error");
  68 static_assert(std::is_assignable<bool&, const bool&>::value, "Error");
  69
  70 // bool is a fundamental type that does not allow assignment to an rvalue:
  71 static_assert(!std::is_assignable<bool, bool>::value, "Error");
  72 static_assert(!std::is_assignable<bool, const bool>::value, "Error");
  73 static_assert(!std::is_assignable<bool, bool&>::value, "Error");
  74 static_assert(!std::is_assignable<bool, const bool&>::value, "Error");
  75
  76 static_assert(std::is_assignable<std::nullptr_t&,
  77 std::nullptr_t>::value, "Error");
  78 static_assert(std::is_assignable<std::nullptr_t&, const
  79 std::nullptr_t>::value, "Error");
  80 static_assert(std::is_assignable<std::nullptr_t&,
  81 std::nullptr_t&>::value, "Error");
  82 static_assert(std::is_assignable<std::nullptr_t&, const
  83 std::nullptr_t&>::value, "Error");
  84
  85 // std::nullptr_t is a fundamental type that does not allow
  86 // assignment to an rvalue:
  87 static_assert(!std::is_assignable<std::nullptr_t,
  88 std::nullptr_t>::value, "Error");
  89 static_assert(!std::is_assignable<std::nullptr_t, const
  90 std::nullptr_t>::value, "Error");
  91 static_assert(!std::is_assignable<std::nullptr_t,
  92 std::nullptr_t&>::value, "Error");
  93 static_assert(!std::is_assignable<std::nullptr_t, const
  94 std::nullptr_t&>::value, "Error");
  95
  96 static_assert(std::is_assignable<E&, E>::value, "Error");
  97 static_assert(std::is_assignable<E&, const E>::value, "Error");
  98 static_assert(std::is_assignable<E&, E&>::value, "Error");
  99 static_assert(std::is_assignable<E&, const E&>::value, "Error");
 100
 101 static_assert(std::is_assignable<int&, E>::value, "Error");
 102 static_assert(std::is_assignable<int&, const E>::value, "Error");
 103 static_assert(std::is_assignable<int&, E&>::value, "Error");
 104 static_assert(std::is_assignable<int&, const E&>::value, "Error");
 105
 106 static_assert(!std::is_assignable<E&, int>::value, "Error");
 107 static_assert(!std::is_assignable<E&, const int>::value, "Error");
 108 static_assert(!std::is_assignable<E&, int&>::value, "Error");
 109 static_assert(!std::is_assignable<E&, const int&>::value, "Error");
 110
 111 static_assert(!std::is_assignable<E&, E2>::value, "Error");
 112 static_assert(!std::is_assignable<E&, const E2>::value, "Error");
 113 static_assert(!std::is_assignable<E&, E2&>::value, "Error");
 114 static_assert(!std::is_assignable<E&, const E2&>::value, "Error");
 115
 116 // E is not a class type and thus does not allow assignment to an rvalue:
 117 static_assert(!std::is_assignable<E, E>::value, "Error");
 118 static_assert(!std::is_assignable<E, const E>::value, "Error");
 119 static_assert(!std::is_assignable<E, E&>::value, "Error");
 120 static_assert(!std::is_assignable<E, const E&>::value, "Error");
 121
 122 static_assert(std::is_assignable<SE&, SE>::value, "Error");
 123 static_assert(std::is_assignable<SE&, const SE>::value, "Error");
 124 static_assert(std::is_assignable<SE&, SE&>::value, "Error");
 125 static_assert(std::is_assignable<SE&, const SE&>::value, "Error");
 126
 127 static_assert(!std::is_assignable<int&, SE>::value, "Error");
 128 static_assert(!std::is_assignable<int&, const SE>::value, "Error");
 129 static_assert(!std::is_assignable<int&, SE&>::value, "Error");
 130 static_assert(!std::is_assignable<int&, const SE&>::value, "Error");
 131
 132 static_assert(!std::is_assignable<SE&, int>::value, "Error");
 133 static_assert(!std::is_assignable<SE&, const int>::value, "Error");
 134 static_assert(!std::is_assignable<SE&, int&>::value, "Error");
 135 static_assert(!std::is_assignable<SE&, const int&>::value, "Error");
 136
 137 // SE is not a class type and thus does not allow assignment to an rvalue:
 138 static_assert(!std::is_assignable<SE, SE>::value, "Error");
 139 static_assert(!std::is_assignable<SE, const SE>::value, "Error");
 140 static_assert(!std::is_assignable<SE, SE&>::value, "Error");
 141 static_assert(!std::is_assignable<SE, const SE&>::value, "Error");
 142
 143 static_assert(std::is_assignable<AnyAssign&, int>::value, "Error");
 144 static_assert(std::is_assignable<AnyAssign&, std::nullptr_t>::value, "Error");
 145 static_assert(std::is_assignable<AnyAssign&, E>::value, "Error");
 146 static_assert(std::is_assignable<AnyAssign&, SE>::value, "Error");
 147 static_assert(std::is_assignable<AnyAssign&, Empty>::value, "Error");
 148 static_assert(std::is_assignable<AnyAssign&, U>::value, "Error");
 149 static_assert(std::is_assignable<AnyAssign&, int&>::value, "Error");
 150 static_assert(std::is_assignable<AnyAssign&, std::nullptr_t&>::value, "Error");
 151 static_assert(std::is_assignable<AnyAssign&, E&>::value, "Error");
 152 static_assert(std::is_assignable<AnyAssign&, SE&>::value, "Error");
 153 static_assert(std::is_assignable<AnyAssign&, Empty&>::value, "Error");
 154 static_assert(std::is_assignable<AnyAssign&, U&>::value, "Error");
 155 static_assert(std::is_assignable<AnyAssign&, AnyAssign>::value, "Error");
 156 static_assert(std::is_assignable<AnyAssign&,
 157 std::initializer_list<int>>::value, "Error");
 158
 159 static_assert(std::is_assignable<AnyAssign&, int[1]>::value, "Error");
 160 static_assert(std::is_assignable<AnyAssign&,
 161 std::nullptr_t[1]>::value, "Error");
 162 static_assert(std::is_assignable<AnyAssign&, E[1]>::value, "Error");
 163 static_assert(std::is_assignable<AnyAssign&, SE[1]>::value, "Error");
 164 static_assert(std::is_assignable<AnyAssign&, int(&)[1]>::value, "Error");
 165 static_assert(std::is_assignable<AnyAssign&,
 166 std::nullptr_t(&)[1]>::value, "Error");
 167 static_assert(std::is_assignable<AnyAssign&, E(&)[1]>::value, "Error");
 168 static_assert(std::is_assignable<AnyAssign&, SE(&)[1]>::value, "Error");
 169
 170 static_assert(std::is_assignable<int&, E>::value, "Error");
 171 static_assert(!std::is_assignable<int&, SE>::value, "Error");
 172 static_assert(std::is_assignable<bool&, E>::value, "Error");
 173 static_assert(!std::is_assignable<bool&, SE>::value, "Error");
 174 static_assert(std::is_assignable<bool&, void*>::value, "Error");
 175 static_assert(std::is_assignable<bool&, int B::*>::value, "Error");
 176 static_assert(std::is_assignable<bool&, void*>::value, "Error");
 177 static_assert(std::is_assignable<bool&, std::nullptr_t>::value, "Error");
 178
 179 static_assert(std::is_assignable<std::nullptr_t&,
 180 std::nullptr_t>::value, "Error");
 181 static_assert(std::is_assignable<void*&, std::nullptr_t>::value, "Error");
 182 static_assert(std::is_assignable<int*&, std::nullptr_t>::value, "Error");
 183 static_assert(std::is_assignable<int B::*&, std::nullptr_t>::value, "Error");
 184 static_assert(!std::is_assignable<std::nullptr_t&, bool>::value, "Error");
 185 static_assert(!std::is_assignable<void*&, bool>::value, "Error");
 186 static_assert(!std::is_assignable<E&, bool>::value, "Error");
 187 static_assert(!std::is_assignable<SE&, bool>::value, "Error");
 188
 189 static_assert(std::is_assignable<std::initializer_list<int>&,
 190 std::initializer_list<int>>::value, "Error");
 191 static_assert(std::is_assignable<std::initializer_list<int>&,
 192 std::initializer_list<int>&&>::value, "Error");
 193 static_assert(std::is_assignable<std::initializer_list<int>&, const
 194 std::initializer_list<int>&&>::value, "Error");
 195 static_assert(std::is_assignable<std::initializer_list<int>&,
 196 std::initializer_list<int>&>::value, "Error");
 197 static_assert(std::is_assignable<std::initializer_list<int>&, const
 198 std::initializer_list<int>&>::value, "Error");
 199 static_assert(!std::is_assignable<const std::initializer_list<int>&,
 200 std::initializer_list<int>>::value, "Error");
 201
 202 static_assert(!std::is_assignable<const AnyAssign&, int>::value, "Error");
 203 static_assert(!std::is_assignable<AnyAssign&, void>::value, "Error");
 204
 205 static_assert(!std::is_assignable<void, int>::value, "Error");
 206 static_assert(!std::is_assignable<const void, int>::value, "Error");
 207 static_assert(!std::is_assignable<int, void>::value, "Error");
 208 static_assert(!std::is_assignable<int, const void>::value, "Error");
 209 static_assert(!std::is_assignable<const int, void>::value, "Error");
 210 static_assert(!std::is_assignable<const int, const void>::value, "Error");
 211 static_assert(!std::is_assignable<int&, void>::value, "Error");
 212 static_assert(!std::is_assignable<int&, const void>::value, "Error");
 213 static_assert(!std::is_assignable<const int&, void>::value, "Error");
 214 static_assert(!std::is_assignable<const int&, const void>::value, "Error");
 215 static_assert(!std::is_assignable<void, void>::value, "Error");
 216 static_assert(!std::is_assignable<const void, void>::value, "Error");
 217 static_assert(!std::is_assignable<const void, const void>::value, "Error");
 218
 219 static_assert(!std::is_assignable<int[1], int[1]>::value, "Error");
 220 static_assert(!std::is_assignable<int(&)[1], int[1]>::value, "Error");
 221 static_assert(!std::is_assignable<int(&)[1], int(&)[1]>::value, "Error");
 222 static_assert(!std::is_assignable<int[2], int[1]>::value, "Error");
 223 static_assert(!std::is_assignable<int(&)[2], int[1]>::value, "Error");
 224 static_assert(!std::is_assignable<int(&)[2], int(&)[1]>::value, "Error");
 225 static_assert(!std::is_assignable<int[1], void>::value, "Error");
 226 static_assert(!std::is_assignable<int(&)[1], void>::value, "Error");
 227 static_assert(!std::is_assignable<void, int[1]>::value, "Error");
 228 static_assert(!std::is_assignable<void, int(&)[1]>::value, "Error");
 229
 230 static_assert(!std::is_assignable<int[], int[]>::value, "Error");
 231 static_assert(!std::is_assignable<int(&)[], int[]>::value, "Error");
 232 static_assert(!std::is_assignable<int(&)[], int(&)[]>::value, "Error");
 233 static_assert(!std::is_assignable<int[1], int[]>::value, "Error");
 234 static_assert(!std::is_assignable<int(&)[1], int[]>::value, "Error");
 235 static_assert(!std::is_assignable<int(&)[1], int(&)[]>::value, "Error");
 236 static_assert(!std::is_assignable<int[], int[1]>::value, "Error");
 237 static_assert(!std::is_assignable<int(&)[], int[1]>::value, "Error");
 238 static_assert(!std::is_assignable<int(&)[], int(&)[1]>::value, "Error");
 239 static_assert(!std::is_assignable<int[], void>::value, "Error");
 240 static_assert(!std::is_assignable<int(&)[], void>::value, "Error");
 241 static_assert(!std::is_assignable<void, int[]>::value, "Error");
 242 static_assert(!std::is_assignable<void, int(&)[]>::value, "Error");
 243
 244 static_assert(std::is_assignable<DelCopyAssign&,
 245 DelCopyAssign>::value, "Error");
 246 static_assert(!std::is_assignable<DelCopyAssign&, const
 247 DelCopyAssign>::value, "Error");
 248 static_assert(!std::is_assignable<DelCopyAssign&,
 249 DelCopyAssign&>::value, "Error");
 250 static_assert(!std::is_assignable<DelCopyAssign&, const
 251 DelCopyAssign&>::value, "Error");
 252 static_assert(!std::is_assignable<DelCopyAssign&, void>::value, "Error");
 253 static_assert(!std::is_assignable<DelCopyAssign&, void()>::value, "Error");
 254 static_assert(!std::is_assignable<DelCopyAssign&, void(&)()>::value, "Error");
 255 static_assert(!std::is_assignable<DelCopyAssign&, int>::value, "Error");
 256
 257 static_assert(std::is_assignable<DelAnyAssign&,
 258 DelAnyAssign&&>::value, "Error");
 259 static_assert(std::is_assignable<DelAnyAssign&, const
 260 DelAnyAssign&>::value, "Error");
 261 static_assert(std::is_assignable<DelAnyAssign,
 262 DelAnyAssign&&>::value, "Error");
 263 static_assert(std::is_assignable<DelAnyAssign, const
 264 DelAnyAssign&>::value, "Error");
 265
 266 static_assert(!std::is_assignable<const DelAnyAssign&,
 267 DelAnyAssign&&>::value, "Error");
 268 static_assert(!std::is_assignable<const DelAnyAssign&, const
 269 DelAnyAssign&>::value, "Error");
 270 static_assert(!std::is_assignable<const DelAnyAssign,
 271 DelAnyAssign&&>::value, "Error");
 272 static_assert(!std::is_assignable<const DelAnyAssign, const
 273 DelAnyAssign&>::value, "Error");
 274
 275 static_assert(!std::is_assignable<DelAnyAssign&, int>::value, "Error");
 276 static_assert(!std::is_assignable<DelAnyAssign&, int&>::value, "Error");
 277 static_assert(!std::is_assignable<DelAnyAssign&, const int&>::value, "Error");
 278 static_assert(!std::is_assignable<DelAnyAssign&, void>::value, "Error");
 279 static_assert(!std::is_assignable<DelAnyAssign&, void()>::value, "Error");
 280 static_assert(!std::is_assignable<DelAnyAssign&, void()
 281 const>::value, "Error");
 282 static_assert(!std::is_assignable<DelAnyAssign&, void(&)()>::value, "Error");
 283 static_assert(!std::is_assignable<DelAnyAssign&, void(&&)()>::value, "Error");
 284 static_assert(!std::is_assignable<DelAnyAssign&,
 285 std::nullptr_t>::value, "Error");
 286 static_assert(!std::is_assignable<DelAnyAssign&,
 287 std::nullptr_t&>::value, "Error");
 288 static_assert(!std::is_assignable<DelAnyAssign&,
 289 std::initializer_list<int>>::value, "Error");
 290 static_assert(!std::is_assignable<DelAnyAssign&,
 291 std::initializer_list<int>&>::value, "Error");
 292 static_assert(!std::is_assignable<DelAnyAssign&, bool>::value, "Error");
 293 static_assert(!std::is_assignable<DelAnyAssign&, bool&>::value, "Error");
 294 static_assert(!std::is_assignable<DelAnyAssign&, E>::value, "Error");
 295 static_assert(!std::is_assignable<DelAnyAssign&, E&>::value, "Error");
 296 static_assert(!std::is_assignable<DelAnyAssign&, SE>::value, "Error");
 297 static_assert(!std::is_assignable<DelAnyAssign&, SE&>::value, "Error");
 298 static_assert(!std::is_assignable<DelAnyAssign&, Empty>::value, "Error");
 299 static_assert(!std::is_assignable<DelAnyAssign&, Empty&>::value, "Error");
 300 static_assert(!std::is_assignable<DelAnyAssign&, B>::value, "Error");
 301 static_assert(!std::is_assignable<DelAnyAssign&, B&>::value, "Error");
 302 static_assert(!std::is_assignable<DelAnyAssign&, U>::value, "Error");
 303 static_assert(!std::is_assignable<DelAnyAssign&, U&>::value, "Error");
 304 static_assert(!std::is_assignable<DelAnyAssign&, void*>::value, "Error");
 305 static_assert(!std::is_assignable<DelAnyAssign&, int*>::value, "Error");
 306 static_assert(!std::is_assignable<DelAnyAssign&, B*>::value, "Error");
 307 static_assert(!std::is_assignable<DelAnyAssign&, D*>::value, "Error");
 308 static_assert(!std::is_assignable<DelAnyAssign&, int B::*>::value, "Error");
 309 static_assert(!std::is_assignable<DelAnyAssign&, int D::*>::value, "Error");
 310 static_assert(!std::is_assignable<DelAnyAssign&, int[]>::value, "Error");
 311 static_assert(!std::is_assignable<DelAnyAssign&, int[1]>::value, "Error");
 312 static_assert(!std::is_assignable<DelAnyAssign&, int(&)[]>::value, "Error");
 313 static_assert(!std::is_assignable<DelAnyAssign&, int(&)[1]>::value, "Error");
 314
 315 static_assert(!std::is_assignable<void(), void>::value, "Error");
 316 static_assert(!std::is_assignable<void, void()>::value, "Error");
 317 static_assert(!std::is_assignable<void(), void()>::value, "Error");
 318
 319 static_assert(!std::is_assignable<void(&)(), void>::value, "Error");
 320 static_assert(!std::is_assignable<void, void(&)()>::value, "Error");
 321 static_assert(!std::is_assignable<void(&)(), void(&)()>::value, "Error");
 322 static_assert(!std::is_assignable<void(&)(), void()>::value, "Error");
 323 static_assert(!std::is_assignable<void(), void(&)()>::value, "Error");
 324
 325 static_assert(std::is_assignable<int&, ImplicitTo<int>>::value, "Error");
 326 static_assert(!std::is_assignable<int&, ExplicitTo<int>>::value, "Error");
 327 static_assert(!std::is_assignable<int, ImplicitTo<int>>::value, "Error");
 328 static_assert(!std::is_assignable<int, ExplicitTo<int>>::value, "Error");
 329 static_assert(!std::is_assignable<const int, ImplicitTo<int>>::value, "Error");
 330 static_assert(!std::is_assignable<const int, ExplicitTo<int>>::value, "Error");
 331 static_assert(!std::is_assignable<const int&,
 332 ImplicitTo<int>>::value, "Error");
 333 static_assert(!std::is_assignable<const int&,
 334 ExplicitTo<int>>::value, "Error");
 335
 336 static_assert(std::is_assignable<DelImplicitTo<int>&,
 337 DelImplicitTo<int>>::value, "Error");
 338 static_assert(std::is_assignable<DelImplicitTo<int>,
 339 DelImplicitTo<int>>::value, "Error");
 340 static_assert(!std::is_assignable<int&, DelImplicitTo<int>>::value, "Error");
 341 static_assert(!std::is_assignable<int, DelImplicitTo<int>>::value, "Error");
 342 static_assert(!std::is_assignable<const int&,
 343 DelImplicitTo<int>>::value, "Error");
 344 static_assert(!std::is_assignable<const int,
 345 DelImplicitTo<int>>::value, "Error");
 346 static_assert(!std::is_assignable<int&, DelExplicitTo<int>>::value, "Error");
 347 static_assert(!std::is_assignable<int, DelExplicitTo<int>>::value, "Error");
 348 static_assert(!std::is_assignable<const int&,
 349 DelExplicitTo<int>>::value, "Error");
 350 static_assert(!std::is_assignable<const int,
 351 DelExplicitTo<int>>::value, "Error");
 352
 353 static_assert(std::is_assignable<B&, B>::value, "Error");
 354 static_assert(std::is_assignable<B&, D>::value, "Error");
 355 static_assert(std::is_assignable<B&, B&>::value, "Error");
 356 static_assert(std::is_assignable<B&, D&>::value, "Error");
 357 static_assert(!std::is_assignable<const B&, B&>::value, "Error");
 358 static_assert(!std::is_assignable<const B&, D&>::value, "Error");
 359 static_assert(!std::is_assignable<D&, B>::value, "Error");
 360 static_assert(!std::is_assignable<D&, B&>::value, "Error");
 361
 362 static_assert(std::is_assignable<B*&, B*>::value, "Error");
 363 static_assert(std::is_assignable<B*&, D*>::value, "Error");
 364 static_assert(std::is_assignable<const B*&, D*>::value, "Error");
 365 static_assert(std::is_assignable<const B*&, const D*>::value, "Error");
 366 static_assert(std::is_assignable<B*&, B*&>::value, "Error");
 367 static_assert(std::is_assignable<B*&, D*&>::value, "Error");
 368 static_assert(std::is_assignable<const B*&, B*&>::value, "Error");
 369 static_assert(std::is_assignable<const B*&, D*&>::value, "Error");
 370 static_assert(!std::is_assignable<B* const&, B*&>::value, "Error");
 371 static_assert(!std::is_assignable<B* const&, D*&>::value, "Error");
 372 static_assert(!std::is_assignable<D*&, B*>::value, "Error");
 373 static_assert(!std::is_assignable<D*&, B*&>::value, "Error");
 374
 375 static_assert(std::is_assignable<MO&, MO>::value, "Error");
 376 static_assert(std::is_assignable<MO&, MO&&>::value, "Error");
 377 static_assert(std::is_assignable<MO, MO>::value, "Error");
 378 static_assert(std::is_assignable<MO, MO&&>::value, "Error");
 379
 380 static_assert(!std::is_assignable<const MO&, MO>::value, "Error");
 381 static_assert(!std::is_assignable<const MO&, MO&&>::value, "Error");
 382 static_assert(!std::is_assignable<MO&, const MO&&>::value, "Error");
 383 static_assert(!std::is_assignable<MO&, MO&>::value, "Error");
 384 static_assert(!std::is_assignable<MO&, const MO&>::value, "Error");
 385 static_assert(!std::is_assignable<const MO, MO>::value, "Error");
 386 static_assert(!std::is_assignable<const MO, MO&&>::value, "Error");
 387 static_assert(!std::is_assignable<MO, const MO&&>::value, "Error");
 388 static_assert(!std::is_assignable<MO, MO&>::value, "Error");
 389 static_assert(!std::is_assignable<MO, const MO&>::value, "Error");
 390
 391 static_assert(!std::is_assignable<NontrivialUnion&,
 392 NontrivialUnion>::value, "Error");
 393 static_assert(!std::is_assignable<NontrivialUnion&,
 394 NontrivialUnion&&>::value, "Error");
 395 static_assert(!std::is_assignable<NontrivialUnion&,
 396 NontrivialUnion&>::value, "Error");
 397 static_assert(!std::is_assignable<NontrivialUnion&, const
 398 NontrivialUnion&>::value, "Error");
 399 static_assert(!std::is_assignable<NontrivialUnion&, const
 400 NontrivialUnion&&>::value, "Error");
 401
 402 static_assert(std::is_assignable<Abstract&, Abstract>::value, "Error");
 403 static_assert(std::is_assignable<Abstract&, Abstract&&>::value, "Error");
 404 static_assert(std::is_assignable<Abstract&, Abstract&>::value, "Error");
 405 static_assert(std::is_assignable<Abstract&, const Abstract&>::value, "Error");
 406 static_assert(std::is_assignable<Abstract&, const Abstract&&>::value, "Error");
 407 static_assert(std::is_assignable<Abstract&&, Abstract>::value, "Error");
 408 static_assert(std::is_assignable<Abstract&&, Abstract&&>::value, "Error");
 409 static_assert(std::is_assignable<Abstract&&, Abstract&>::value, "Error");
 410 static_assert(std::is_assignable<Abstract&&, const Abstract&>::value, "Error");
 411 static_assert(std::is_assignable<Abstract&&, const
 412 Abstract&&>::value, "Error");
 413
 414 static_assert(std::is_assignable<AbstractDelDtor&,
 415 AbstractDelDtor>::value, "Error");
 416 static_assert(std::is_assignable<AbstractDelDtor&,
 417 AbstractDelDtor&&>::value, "Error");
 418 static_assert(std::is_assignable<AbstractDelDtor&,
 419 AbstractDelDtor&>::value, "Error");
 420 static_assert(std::is_assignable<AbstractDelDtor&, const
 421 AbstractDelDtor&>::value, "Error");
 422 static_assert(std::is_assignable<AbstractDelDtor&, const
 423 AbstractDelDtor&&>::value, "Error");
 424 static_assert(std::is_assignable<AbstractDelDtor&&,
 425 AbstractDelDtor>::value, "Error");
 426 static_assert(std::is_assignable<AbstractDelDtor&&,
 427 AbstractDelDtor&&>::value, "Error");
 428 static_assert(std::is_assignable<AbstractDelDtor&&,
 429 AbstractDelDtor&>::value, "Error");
 430 static_assert(std::is_assignable<AbstractDelDtor&&, const
 431 AbstractDelDtor&>::value, "Error");
 432 static_assert(std::is_assignable<AbstractDelDtor&&, const
 433 AbstractDelDtor&&>::value, "Error");
 434
 435 static_assert(std::is_assignable<DelDef&, DelDef>::value, "Error");
 436 static_assert(std::is_assignable<DelDef&, DelDef&&>::value, "Error");
 437 static_assert(std::is_assignable<DelDef&, DelDef&>::value, "Error");
 438 static_assert(std::is_assignable<DelDef&, const DelDef&>::value, "Error");
 439 static_assert(std::is_assignable<DelDef&, const DelDef&&>::value, "Error");
 440 static_assert(std::is_assignable<DelDef&&, DelDef>::value, "Error");
 441 static_assert(std::is_assignable<DelDef&&, DelDef&&>::value, "Error");
 442 static_assert(std::is_assignable<DelDef&&, DelDef&>::value, "Error");
 443 static_assert(std::is_assignable<DelDef&&, const DelDef&>::value, "Error");
 444 static_assert(std::is_assignable<DelDef&&, const DelDef&&>::value, "Error");
 445
 446 static_assert(std::is_assignable<Ellipsis&, Ellipsis>::value, "Error");
 447 static_assert(std::is_assignable<Ellipsis&, const Ellipsis>::value, "Error");
 448 static_assert(std::is_assignable<Ellipsis&, Ellipsis&>::value, "Error");
 449 static_assert(std::is_assignable<Ellipsis&, const Ellipsis&>::value, "Error");
 450 static_assert(std::is_assignable<Ellipsis, Ellipsis>::value, "Error");
 451 static_assert(std::is_assignable<Ellipsis, const Ellipsis>::value, "Error");
 452 static_assert(std::is_assignable<Ellipsis, Ellipsis&>::value, "Error");
 453 static_assert(std::is_assignable<Ellipsis, const Ellipsis&>::value, "Error");
 454
 455 static_assert(!std::is_assignable<Ellipsis&, void>::value, "Error");
 456
 457 static_assert(std::is_assignable<Ellipsis&, int>::value, "Error");
 458 static_assert(std::is_assignable<Ellipsis&, const int>::value, "Error");
 459 static_assert(std::is_assignable<Ellipsis&, int&>::value, "Error");
 460 static_assert(std::is_assignable<Ellipsis&, const int&>::value, "Error");
 461 static_assert(std::is_assignable<Ellipsis&, Empty>::value, "Error");
 462 static_assert(std::is_assignable<Ellipsis&, const Empty>::value, "Error");
 463 static_assert(std::is_assignable<Ellipsis&, Empty&>::value, "Error");
 464 static_assert(std::is_assignable<Ellipsis&, const Empty&>::value, "Error");
 465 static_assert(std::is_assignable<Ellipsis&, E>::value, "Error");
 466 static_assert(std::is_assignable<Ellipsis&, const E>::value, "Error");
 467 static_assert(std::is_assignable<Ellipsis&, E&>::value, "Error");
 468 static_assert(std::is_assignable<Ellipsis&, const E&>::value, "Error");
 469 static_assert(std::is_assignable<Ellipsis&, SE>::value, "Error");
 470 static_assert(std::is_assignable<Ellipsis&, const SE>::value, "Error");
 471 static_assert(std::is_assignable<Ellipsis&, SE&>::value, "Error");
 472 static_assert(std::is_assignable<Ellipsis&, const SE&>::value, "Error");
 473 static_assert(std::is_assignable<Ellipsis&, bool>::value, "Error");
 474 static_assert(std::is_assignable<Ellipsis&, const bool>::value, "Error");
 475 static_assert(std::is_assignable<Ellipsis&, bool&>::value, "Error");
 476 static_assert(std::is_assignable<Ellipsis&, const bool&>::value, "Error");
 477 static_assert(std::is_assignable<Ellipsis&, std::nullptr_t>::value, "Error");
 478 static_assert(std::is_assignable<Ellipsis&, const
 479 std::nullptr_t>::value, "Error");
 480 static_assert(std::is_assignable<Ellipsis&, std::nullptr_t&>::value, "Error");
 481 static_assert(std::is_assignable<Ellipsis&, const
 482 std::nullptr_t&>::value, "Error");
 483 static_assert(std::is_assignable<Ellipsis&, void*>::value, "Error");
 484 static_assert(std::is_assignable<Ellipsis&, const void*>::value, "Error");
 485 static_assert(std::is_assignable<Ellipsis&, void*&>::value, "Error");
 486 static_assert(std::is_assignable<Ellipsis&, const void*&>::value, "Error");
 487 static_assert(std::is_assignable<Ellipsis&, void()>::value, "Error");
 488 static_assert(std::is_assignable<Ellipsis&, void(&)()>::value, "Error");
 489
 490 static_assert(std::is_assignable<DelEllipsis&, DelEllipsis>::value, "Error");
 491 static_assert(std::is_assignable<DelEllipsis&, const
 492 DelEllipsis>::value, "Error");
 493 static_assert(std::is_assignable<DelEllipsis&, DelEllipsis&>::value, "Error");
 494 static_assert(std::is_assignable<DelEllipsis&, const
 495 DelEllipsis&>::value, "Error");
 496 static_assert(std::is_assignable<DelEllipsis, DelEllipsis>::value, "Error");
 497 static_assert(std::is_assignable<DelEllipsis, const
 498 DelEllipsis>::value, "Error");
 499 static_assert(std::is_assignable<DelEllipsis, DelEllipsis&>::value, "Error");
 500 static_assert(std::is_assignable<DelEllipsis, const
 501 DelEllipsis&>::value, "Error");
 502
 503 static_assert(!std::is_assignable<DelEllipsis&, void>::value, "Error");
 504 static_assert(!std::is_assignable<DelEllipsis&, int>::value, "Error");
 505 static_assert(!std::is_assignable<DelEllipsis&, const int>::value, "Error");
 506 static_assert(!std::is_assignable<DelEllipsis&, int&>::value, "Error");
 507 static_assert(!std::is_assignable<DelEllipsis&, const int&>::value, "Error");
 508 static_assert(!std::is_assignable<DelEllipsis&, Empty>::value, "Error");
 509 static_assert(!std::is_assignable<DelEllipsis&, const Empty>::value, "Error");
 510 static_assert(!std::is_assignable<DelEllipsis&, Empty&>::value, "Error");
 511 static_assert(!std::is_assignable<DelEllipsis&, const Empty&>::value, "Error");
 512 static_assert(!std::is_assignable<DelEllipsis&, E>::value, "Error");
 513 static_assert(!std::is_assignable<DelEllipsis&, const E>::value, "Error");
 514 static_assert(!std::is_assignable<DelEllipsis&, E&>::value, "Error");
 515 static_assert(!std::is_assignable<DelEllipsis&, const E&>::value, "Error");
 516 static_assert(!std::is_assignable<DelEllipsis&, SE>::value, "Error");
 517 static_assert(!std::is_assignable<DelEllipsis&, const SE>::value, "Error");
 518 static_assert(!std::is_assignable<DelEllipsis&, SE&>::value, "Error");
 519 static_assert(!std::is_assignable<DelEllipsis&, const SE&>::value, "Error");
 520 static_assert(!std::is_assignable<DelEllipsis&, bool>::value, "Error");
 521 static_assert(!std::is_assignable<DelEllipsis&, const bool>::value, "Error");
 522 static_assert(!std::is_assignable<DelEllipsis&, bool&>::value, "Error");
 523 static_assert(!std::is_assignable<DelEllipsis&, const bool&>::value, "Error");
 524 static_assert(!std::is_assignable<DelEllipsis&,
 525 std::nullptr_t>::value, "Error");
 526 static_assert(!std::is_assignable<DelEllipsis&, const
 527 std::nullptr_t>::value, "Error");
 528 static_assert(!std::is_assignable<DelEllipsis&,
 529 std::nullptr_t&>::value, "Error");
 530 static_assert(!std::is_assignable<DelEllipsis&, const
 531 std::nullptr_t&>::value, "Error");
 532 static_assert(!std::is_assignable<DelEllipsis&, void*>::value, "Error");
 533 static_assert(!std::is_assignable<DelEllipsis&, const void*>::value, "Error");
 534 static_assert(!std::is_assignable<DelEllipsis&, void*&>::value, "Error");
 535 static_assert(!std::is_assignable<DelEllipsis&, const void*&>::value, "Error");
 536 static_assert(!std::is_assignable<DelEllipsis&, void()>::value, "Error");
 537 static_assert(!std::is_assignable<DelEllipsis&, void(&)()>::value, "Error");
 538
 539 static_assert(std::is_assignable<FromArgs<int>&, int>::value, "Error");
 540 static_assert(std::is_assignable<FromArgs<int>&, const int>::value, "Error");
 541 static_assert(!std::is_assignable<FromArgs<int>&,
 542 ImplicitTo<int>>::value, "Error");
 543 static_assert(!std::is_assignable<FromArgs<int>&, ImplicitTo<const
 544 int>>::value, "Error");
 545 static_assert(!std::is_assignable<FromArgs<int>&,
 546 ExplicitTo<int>>::value, "Error");
 547 static_assert(!std::is_assignable<FromArgs<int>&, ExplicitTo<const
 548 int>>::value, "Error");
 549
 550 static_assert(!std::is_assignable<DelFromArgs<int>&, int>::value, "Error");
 551 static_assert(!std::is_assignable<DelFromArgs<int>&, const
 552 int>::value, "Error");
 553
 554 static_assert(std::is_assignable<void(*&)(),
 555 ImplicitTo<void(*)()>>::value, "Error");
 556 static_assert(!std::is_assignable<void(*&)(),
 557 ExplicitTo<void(*)()>>::value, "Error");
 558
 559 static_assert(std::is_assignable<UAssignAll&, UAssignAll>::value, "Error");
 560 static_assert(std::is_assignable<UAssignAll&, const
 561 UAssignAll>::value, "Error");
 562 static_assert(std::is_assignable<UAssignAll&, UAssignAll&>::value, "Error");
 563 static_assert(std::is_assignable<UAssignAll&, const
 564 UAssignAll&>::value, "Error");
 565
 566 static_assert(std::is_assignable<UAssignAll, UAssignAll>::value, "Error");
 567 static_assert(std::is_assignable<UAssignAll, const
 568 UAssignAll>::value, "Error");
 569 static_assert(std::is_assignable<UAssignAll, UAssignAll&>::value, "Error");
 570 static_assert(std::is_assignable<UAssignAll, const
 571 UAssignAll&>::value, "Error");
 572
 573 static_assert(!std::is_assignable<UAssignAll&, void>::value, "Error");
 574 static_assert(!std::is_assignable<const UAssignAll&, void>::value, "Error");
 575 static_assert(!std::is_assignable<const UAssignAll&,
 576 UAssignAll>::value, "Error");
 577 static_assert(!std::is_assignable<const UAssignAll&, const
 578 UAssignAll>::value, "Error");
 579 static_assert(!std::is_assignable<const UAssignAll&,
 580 UAssignAll&>::value, "Error");
 581 static_assert(!std::is_assignable<const UAssignAll&, const
 582 UAssignAll&>::value, "Error");
 583
 584 static_assert(std::is_assignable<UAssignAll&, int>::value, "Error");
 585 static_assert(std::is_assignable<UAssignAll&, int&>::value, "Error");
 586 static_assert(std::is_assignable<UAssignAll&, E>::value, "Error");
 587 static_assert(std::is_assignable<UAssignAll&, E&>::value, "Error");
 588 static_assert(std::is_assignable<UAssignAll&, SE>::value, "Error");
 589 static_assert(std::is_assignable<UAssignAll&, SE&>::value, "Error");
 590 static_assert(std::is_assignable<UAssignAll&, double>::value, "Error");
 591 static_assert(std::is_assignable<UAssignAll&, double&>::value, "Error");
 592 static_assert(std::is_assignable<UAssignAll&, Empty>::value, "Error");
 593 static_assert(std::is_assignable<UAssignAll&, Empty&>::value, "Error");
 594 static_assert(std::is_assignable<UAssignAll&, B>::value, "Error");
 595 static_assert(std::is_assignable<UAssignAll&, B&>::value, "Error");
 596 static_assert(std::is_assignable<UAssignAll&, U>::value, "Error");
 597 static_assert(std::is_assignable<UAssignAll&, U&>::value, "Error");
 598 static_assert(std::is_assignable<UAssignAll&, std::nullptr_t>::value, "Error");
 599 static_assert(std::is_assignable<UAssignAll&,
 600 std::nullptr_t&>::value, "Error");
 601 static_assert(std::is_assignable<UAssignAll&, void()>::value, "Error");
 602 static_assert(std::is_assignable<UAssignAll&, void(&)()>::value, "Error");
 603 static_assert(std::is_assignable<UAssignAll&, void() const>::value, "Error");
 604 static_assert(std::is_assignable<UAssignAll&, void(*)()>::value, "Error");
 605 static_assert(std::is_assignable<UAssignAll&, void(*&)()>::value, "Error");
 606 static_assert(std::is_assignable<UAssignAll&, int*>::value, "Error");
 607 static_assert(std::is_assignable<UAssignAll&, int*&>::value, "Error");
 608 static_assert(std::is_assignable<UAssignAll&, void*>::value, "Error");
 609 static_assert(std::is_assignable<UAssignAll&, void*&>::value, "Error");
 610 static_assert(std::is_assignable<UAssignAll&, const int*>::value, "Error");
 611 static_assert(std::is_assignable<UAssignAll&, const int*&>::value, "Error");
 612 static_assert(std::is_assignable<UAssignAll&, const void*>::value, "Error");
 613 static_assert(std::is_assignable<UAssignAll&, const void*&>::value, "Error");
 614 static_assert(std::is_assignable<UAssignAll&, int[1]>::value, "Error");
 615 static_assert(std::is_assignable<UAssignAll&, int(&)[1]>::value, "Error");
 616 static_assert(std::is_assignable<UAssignAll&, int[]>::value, "Error");
 617 static_assert(std::is_assignable<UAssignAll&, int(&)[]>::value, "Error");
 618
 619 static_assert(!std::is_assignable<UDelAssignAll&, int>::value, "Error");
 620 static_assert(!std::is_assignable<UDelAssignAll&, int&>::value, "Error");
 621 static_assert(!std::is_assignable<UDelAssignAll&, E>::value, "Error");
 622 static_assert(!std::is_assignable<UDelAssignAll&, E&>::value, "Error");
 623 static_assert(!std::is_assignable<UDelAssignAll&, SE>::value, "Error");
 624 static_assert(!std::is_assignable<UDelAssignAll&, SE&>::value, "Error");
 625 static_assert(!std::is_assignable<UDelAssignAll&, double>::value, "Error");
 626 static_assert(!std::is_assignable<UDelAssignAll&, double&>::value, "Error");
 627 static_assert(!std::is_assignable<UDelAssignAll&, Empty>::value, "Error");
 628 static_assert(!std::is_assignable<UDelAssignAll&, Empty&>::value, "Error");
 629 static_assert(!std::is_assignable<UDelAssignAll&, B>::value, "Error");
 630 static_assert(!std::is_assignable<UDelAssignAll&, B&>::value, "Error");
 631 static_assert(!std::is_assignable<UDelAssignAll&, U>::value, "Error");
 632 static_assert(!std::is_assignable<UDelAssignAll&, U&>::value, "Error");
 633 static_assert(!std::is_assignable<UDelAssignAll&,
 634 std::nullptr_t>::value, "Error");
 635 static_assert(!std::is_assignable<UDelAssignAll&,
 636 std::nullptr_t&>::value, "Error");
 637 static_assert(!std::is_assignable<UDelAssignAll&, void()>::value, "Error");
 638 static_assert(!std::is_assignable<UDelAssignAll&, void(&)()>::value, "Error");
 639 static_assert(!std::is_assignable<UDelAssignAll&, void()
 640 const>::value, "Error");
 641 static_assert(!std::is_assignable<UDelAssignAll&, void(*)()>::value, "Error");
 642 static_assert(!std::is_assignable<UDelAssignAll&, void(*&)()>::value, "Error");
 643 static_assert(!std::is_assignable<UDelAssignAll&, int*>::value, "Error");
 644 static_assert(!std::is_assignable<UDelAssignAll&, int*&>::value, "Error");
 645 static_assert(!std::is_assignable<UDelAssignAll&, void*>::value, "Error");
 646 static_assert(!std::is_assignable<UDelAssignAll&, void*&>::value, "Error");
 647 static_assert(!std::is_assignable<UDelAssignAll&, const int*>::value, "Error");
 648 static_assert(!std::is_assignable<UDelAssignAll&, const
 649 int*&>::value, "Error");
 650 static_assert(!std::is_assignable<UDelAssignAll&, const
 651 void*>::value, "Error");
 652 static_assert(!std::is_assignable<UDelAssignAll&, const
 653 void*&>::value, "Error");
 654 static_assert(!std::is_assignable<UDelAssignAll&, int[1]>::value, "Error");
 655 static_assert(!std::is_assignable<UDelAssignAll&, int(&)[1]>::value, "Error");
 656 static_assert(!std::is_assignable<UDelAssignAll&, int[]>::value, "Error");
 657 static_assert(!std::is_assignable<UDelAssignAll&, int(&)[]>::value, "Error");
 658
 659 static_assert(!std::is_assignable<void(&)(), std::nullptr_t>::value, "Error");
 660 static_assert(!std::is_assignable<std::nullptr_t, void(&)()>::value, "Error");
 661 static_assert(!std::is_assignable<void(&)(), int[]>::value, "Error");
 662 static_assert(!std::is_assignable<int[], void(&)()>::value, "Error");
 663 static_assert(!std::is_assignable<int[], std::nullptr_t>::value, "Error");
 664 static_assert(!std::is_assignable<std::nullptr_t, int[]>::value, "Error");
 665 static_assert(!std::is_assignable<int[1], std::nullptr_t>::value, "Error");
 666 static_assert(!std::is_assignable<std::nullptr_t, int[1]>::value, "Error");
 667 static_assert(!std::is_assignable<void, std::nullptr_t>::value, "Error");
 668 static_assert(!std::is_assignable<std::nullptr_t, void>::value, "Error");
 669 static_assert(!std::is_assignable<const D&, B&>::value, "Error");
 670 static_assert(!std::is_assignable<const B&, B&>::value, "Error");
 671
 672 static_assert(std::is_assignable<B&, const D&>::value, "Error");
 673 static_assert(std::is_assignable<B&, const B&>::value, "Error");
 674 static_assert(std::is_assignable<int&, const int&>::value, "Error");
 675 static_assert(std::is_assignable<int&, const double&>::value, "Error");