| 1 | // RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| 2 | // RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| 3 | // RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| 4 | // RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++17 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| 5 | |
| 6 | // FIXME: __SIZE_TYPE__ expands to 'long long' on some targets. |
| 7 | __extension__ typedef __SIZE_TYPE__ size_t; |
| 8 | |
| 9 | namespace std { struct type_info; } |
| 10 | |
| 11 | namespace dr400 { // dr400: yes |
| 12 | struct A { int a; struct a {}; }; // expected-note 2{{conflicting}} expected-note {{ambiguous}} |
| 13 | struct B { int a; struct a {}; }; // expected-note 2{{target}} expected-note {{ambiguous}} |
| 14 | struct C : A, B { using A::a; struct a b; }; |
| 15 | struct D : A, B { using A::a; using B::a; struct a b; }; // expected-error 2{{conflicts}} |
| 16 | struct E : A, B { struct a b; }; // expected-error {{found in multiple base classes}} |
| 17 | } |
| 18 | |
| 19 | namespace dr401 { // dr401: yes |
| 20 | template<class T, class U = typename T::type> class A : public T {}; // expected-error {{protected}} expected-error 2{{private}} |
| 21 | |
| 22 | class B { |
| 23 | protected: |
| 24 | typedef int type; // expected-note {{protected}} |
| 25 | #if __cplusplus == 199711L |
| 26 | // expected-note@-2 {{protected}} |
| 27 | #endif |
| 28 | }; |
| 29 | |
| 30 | class C { |
| 31 | typedef int type; // expected-note {{private}} |
| 32 | friend class A<C>; // expected-note {{default argument}} |
| 33 | }; |
| 34 | |
| 35 | class D { |
| 36 | typedef int type; // expected-note {{private}} |
| 37 | friend class A<D, int>; |
| 38 | }; |
| 39 | |
| 40 | A<B> *b; // expected-note {{default argument}} |
| 41 | A<D> *d; // expected-note {{in instantiation of default argument}} |
| 42 | |
| 43 | struct E { |
| 44 | template<class T, class U = typename T::type> class A : public T {}; |
| 45 | }; |
| 46 | class F { |
| 47 | typedef int type; |
| 48 | friend class E; |
| 49 | }; |
| 50 | E::A<F> eaf; // ok, default argument is in befriended context |
| 51 | |
| 52 | // FIXME: Why do we get different diagnostics in C++11 onwards here? We seem |
| 53 | // to not treat the default template argument as a SFINAE context in C++98. |
| 54 | template<class T, class U = typename T::type> void f(T) {} |
| 55 | void g(B b) { f(b); } |
| 56 | #if __cplusplus < 201103L |
| 57 | // expected-error@-3 0-1{{extension}} expected-error@-3 {{protected}} expected-note@-3 {{instantiation}} |
| 58 | // expected-note@-3 {{substituting}} |
| 59 | #else |
| 60 | // expected-error@-5 {{no matching}} expected-note@-6 {{protected}} |
| 61 | #endif |
| 62 | } |
| 63 | |
| 64 | namespace dr403 { // dr403: yes |
| 65 | namespace A { |
| 66 | struct S {}; |
| 67 | int f(void*); |
| 68 | } |
| 69 | template<typename T> struct X {}; |
| 70 | typedef struct X<A::S>::X XS; |
| 71 | XS *p; |
| 72 | int k = f(p); // ok, finds A::f, even though type XS is a typedef-name |
| 73 | // referring to an elaborated-type-specifier naming a |
| 74 | // injected-class-name, which is about as far from a |
| 75 | // template-id as we can make it. |
| 76 | } |
| 77 | |
| 78 | // dr404: na |
| 79 | // (NB: also sup 594) |
| 80 | |
| 81 | namespace dr406 { // dr406: yes |
| 82 | typedef struct { |
| 83 | static int n; // expected-error {{static data member 'n' not allowed in anonymous struct}} |
| 84 | } A; |
| 85 | } |
| 86 | |
| 87 | namespace dr407 { // dr407: 3.8 |
| 88 | struct S; |
| 89 | typedef struct S S; |
| 90 | void f() { |
| 91 | struct S *p; |
| 92 | { |
| 93 | typedef struct S S; // expected-note {{here}} |
| 94 | struct S *p; // expected-error {{typedef 'S' cannot be referenced with a struct specifier}} |
| 95 | } |
| 96 | } |
| 97 | struct S {}; |
| 98 | |
| 99 | namespace UsingDir { |
| 100 | namespace A { |
| 101 | struct S {}; // expected-note {{found}} |
| 102 | } |
| 103 | namespace B { |
| 104 | typedef int S; // expected-note {{found}} |
| 105 | } |
| 106 | namespace C { |
| 107 | using namespace A; |
| 108 | using namespace B; |
| 109 | struct S s; // expected-error {{ambiguous}} |
| 110 | } |
| 111 | namespace D { |
| 112 | using A::S; |
| 113 | typedef struct S S; |
| 114 | struct S s; |
| 115 | } |
| 116 | namespace E { |
| 117 | // The standard doesn't say whether this is valid. We interpret |
| 118 | // DR407 as meaning "if lookup finds both a tag and a typedef with the |
| 119 | // same type, then it's OK in an elaborated-type-specifier". |
| 120 | typedef A::S S; |
| 121 | using A::S; |
| 122 | struct S s; |
| 123 | } |
| 124 | namespace F { |
| 125 | typedef A::S S; |
| 126 | } |
| 127 | // The standard doesn't say what to do in these cases either. |
| 128 | namespace G { |
| 129 | using namespace A; |
| 130 | using namespace F; |
| 131 | struct S s; |
| 132 | } |
| 133 | namespace H { |
| 134 | using namespace F; |
| 135 | using namespace A; |
| 136 | struct S s; |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | namespace dr408 { // dr408: 3.4 |
| 142 | template<int N> void g() { int arr[N != 1 ? 1 : -1]; } |
| 143 | template<> void g<2>() { } |
| 144 | |
| 145 | template<typename T> struct S { |
| 146 | static int i[]; |
| 147 | void f(); |
| 148 | }; |
| 149 | template<typename T> int S<T>::i[] = { 1 }; |
| 150 | |
| 151 | template<typename T> void S<T>::f() { |
| 152 | g<sizeof (i) / sizeof (int)>(); |
| 153 | } |
| 154 | template<> int S<int>::i[] = { 1, 2 }; |
| 155 | template void S<int>::f(); // uses g<2>(), not g<1>(). |
| 156 | |
| 157 | |
| 158 | template<typename T> struct R { |
| 159 | static int arr[]; |
| 160 | void f(); |
| 161 | }; |
| 162 | template<typename T> int R<T>::arr[1]; |
| 163 | template<typename T> void R<T>::f() { |
| 164 | int arr[sizeof(arr) != sizeof(int) ? 1 : -1]; |
| 165 | } |
| 166 | template<> int R<int>::arr[2]; |
| 167 | template void R<int>::f(); |
| 168 | } |
| 169 | |
| 170 | namespace dr409 { // dr409: yes |
| 171 | template<typename T> struct A { |
| 172 | typedef int B; |
| 173 | B b1; |
| 174 | A::B b2; |
| 175 | A<T>::B b3; |
| 176 | A<T*>::B b4; // expected-error {{missing 'typename'}} |
| 177 | }; |
| 178 | } |
| 179 | |
| 180 | namespace dr410 { // dr410: no |
| 181 | template<class T> void f(T); |
| 182 | void g(int); |
| 183 | namespace M { |
| 184 | template<class T> void h(T); |
| 185 | template<class T> void i(T); |
| 186 | struct A { |
| 187 | friend void f<>(int); |
| 188 | friend void h<>(int); |
| 189 | friend void g(int); |
| 190 | template<class T> void i(T); |
| 191 | friend void i<>(int); |
| 192 | private: |
| 193 | static void z(); // expected-note {{private}} |
| 194 | }; |
| 195 | |
| 196 | template<> void h(int) { A::z(); } |
| 197 | // FIXME: This should be ill-formed. The member A::i<> is befriended, |
| 198 | // not this function. |
| 199 | template<> void i(int) { A::z(); } |
| 200 | } |
| 201 | template<> void f(int) { M::A::z(); } |
| 202 | void g(int) { M::A::z(); } // expected-error {{private}} |
| 203 | } |
| 204 | |
| 205 | // dr412 is in its own file. |
| 206 | |
| 207 | namespace dr413 { // dr413: yes |
| 208 | struct S { |
| 209 | int a; |
| 210 | int : 17; |
| 211 | int b; |
| 212 | }; |
| 213 | S s = { 1, 2, 3 }; // expected-error {{excess elements}} |
| 214 | |
| 215 | struct E {}; |
| 216 | struct T { // expected-note {{here}} |
| 217 | int a; |
| 218 | E e; |
| 219 | int b; |
| 220 | }; |
| 221 | T t1 = { 1, {}, 2 }; |
| 222 | T t2 = { 1, 2 }; // expected-error {{aggregate with no elements requires explicit braces}} |
| 223 | } |
| 224 | |
| 225 | namespace dr414 { // dr414: dup 305 |
| 226 | struct X {}; |
| 227 | void f() { |
| 228 | X x; |
| 229 | struct X {}; |
| 230 | x.~X(); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | namespace dr415 { // dr415: yes |
| 235 | template<typename T> void f(T, ...) { T::error; } |
| 236 | void f(int, int); |
| 237 | void g() { f(0, 0); } // ok |
| 238 | } |
| 239 | |
| 240 | namespace dr416 { // dr416: yes |
| 241 | extern struct A a; |
| 242 | int &operator+(const A&, const A&); |
| 243 | int &k = a + a; |
| 244 | struct A { float &operator+(A&); }; |
| 245 | float &f = a + a; |
| 246 | } |
| 247 | |
| 248 | namespace dr417 { // dr417: no |
| 249 | struct A; |
| 250 | struct dr417::A {}; // expected-warning {{extra qualification}} |
| 251 | struct B { struct X; }; |
| 252 | struct C : B {}; |
| 253 | struct C::X {}; // expected-error {{no struct named 'X' in 'dr417::C'}} |
| 254 | struct B::X { struct Y; }; |
| 255 | struct C::X::Y {}; // ok! |
| 256 | namespace N { |
| 257 | struct D; |
| 258 | struct E; |
| 259 | struct F; |
| 260 | struct H; |
| 261 | } |
| 262 | // FIXME: This is ill-formed. |
| 263 | using N::D; |
| 264 | struct dr417::D {}; // expected-warning {{extra qualification}} |
| 265 | using namespace N; |
| 266 | struct dr417::E {}; // expected-warning {{extra qualification}} expected-error {{no struct named 'E'}} |
| 267 | struct N::F {}; |
| 268 | struct G; |
| 269 | using N::H; |
| 270 | namespace M { |
| 271 | struct dr417::G {}; // expected-error {{namespace 'M' does not enclose}} |
| 272 | struct dr417::H {}; // expected-error {{namespace 'M' does not enclose}} |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | namespace dr420 { // dr420: yes |
| 277 | template<typename T> struct ptr { |
| 278 | T *operator->() const; |
| 279 | T &operator*() const; |
| 280 | }; |
| 281 | template<typename T, typename P> void test(P p) { |
| 282 | p->~T(); |
| 283 | p->T::~T(); |
| 284 | (*p).~T(); |
| 285 | (*p).T::~T(); |
| 286 | } |
| 287 | struct X {}; |
| 288 | template void test<int>(int*); |
| 289 | template void test<int>(ptr<int>); |
| 290 | template void test<X>(X*); |
| 291 | template void test<X>(ptr<X>); |
| 292 | |
| 293 | template<typename T> |
| 294 | void test2(T p) { |
| 295 | p->template Y<int>::~Y<int>(); |
| 296 | p->~Y<int>(); |
| 297 | // FIXME: This is ill-formed, but this diagnostic is terrible. We should |
| 298 | // reject this in the parser. |
| 299 | p->template ~Y<int>(); // expected-error 2{{no member named '~typename Y<int>'}} |
| 300 | } |
| 301 | template<typename T> struct Y {}; |
| 302 | template void test2(Y<int>*); // expected-note {{instantiation}} |
| 303 | template void test2(ptr<Y<int> >); // expected-note {{instantiation}} |
| 304 | |
| 305 | void test3(int *p, ptr<int> q) { |
| 306 | typedef int Int; |
| 307 | p->~Int(); |
| 308 | q->~Int(); |
| 309 | p->Int::~Int(); |
| 310 | q->Int::~Int(); |
| 311 | } |
| 312 | |
| 313 | #if __cplusplus >= 201103L |
| 314 | template<typename T> using id = T; |
| 315 | struct A { template<typename T> using id = T; }; |
| 316 | void test4(int *p, ptr<int> q) { |
| 317 | p->~id<int>(); |
| 318 | q->~id<int>(); |
| 319 | p->id<int>::~id<int>(); |
| 320 | q->id<int>::~id<int>(); |
| 321 | p->template id<int>::~id<int>(); // expected-error {{'template' keyword not permitted here}} expected-error {{base type 'int' is not a struct}} |
| 322 | q->template id<int>::~id<int>(); // expected-error {{'template' keyword not permitted here}} expected-error {{base type 'int' is not a struct}} |
| 323 | p->A::template id<int>::~id<int>(); |
| 324 | q->A::template id<int>::~id<int>(); |
| 325 | } |
| 326 | #endif |
| 327 | } |
| 328 | |
| 329 | namespace dr421 { // dr421: yes |
| 330 | struct X { X(); int n; int &r; }; |
| 331 | int *p = &X().n; // expected-error-re {{{{taking the address of a temporary|cannot take the address of an rvalue}}}} |
| 332 | int *q = &X().r; |
| 333 | } |
| 334 | |
| 335 | namespace dr422 { // dr422: yes |
| 336 | template<typename T, typename U> void f() { |
| 337 | typedef T type; // expected-note {{prev}} |
| 338 | typedef U type; // expected-error {{redef}} |
| 339 | } |
| 340 | template void f<int, int>(); |
| 341 | template void f<int, char>(); // expected-note {{instantiation}} |
| 342 | } |
| 343 | |
| 344 | namespace dr423 { // dr423: yes |
| 345 | template<typename T> struct X { operator T&(); }; |
| 346 | void f(X<int> x) { x += 1; } |
| 347 | } |
| 348 | |
| 349 | namespace dr424 { // dr424: yes |
| 350 | struct A { |
| 351 | typedef int N; // expected-note {{previous}} |
| 352 | typedef int N; // expected-error {{redefinition}} |
| 353 | |
| 354 | struct X; |
| 355 | typedef X X; // expected-note {{previous}} |
| 356 | struct X {}; |
| 357 | |
| 358 | struct X *p; |
| 359 | struct A::X *q; |
| 360 | X *r; |
| 361 | |
| 362 | typedef X X; // expected-error {{redefinition}} |
| 363 | }; |
| 364 | struct B { |
| 365 | typedef int N; |
| 366 | }; |
| 367 | struct C : B { |
| 368 | typedef int N; // expected-note {{previous}} |
| 369 | typedef int N; // expected-error {{redefinition}} |
| 370 | }; |
| 371 | } |
| 372 | |
| 373 | namespace dr425 { // dr425: yes |
| 374 | struct A { template<typename T> operator T() const; } a; |
| 375 | float f = 1.0f * a; // expected-error {{ambiguous}} expected-note 5+{{built-in candidate}} |
| 376 | |
| 377 | template<typename T> struct is_float; |
| 378 | template<> struct is_float<float> { typedef void type; }; |
| 379 | |
| 380 | struct B { |
| 381 | template<typename T, typename U = typename is_float<T>::type> operator T() const; // expected-error 0-1{{extension}} |
| 382 | } b; |
| 383 | float g = 1.0f * b; // ok |
| 384 | } |
| 385 | |
| 386 | namespace dr427 { // dr427: yes |
| 387 | struct B {}; |
| 388 | struct D : public B { |
| 389 | D(B &) = delete; // expected-error 0-1{{extension}} expected-note {{deleted}} |
| 390 | }; |
| 391 | |
| 392 | extern D d1; |
| 393 | B &b = d1; |
| 394 | const D &d2 = static_cast<const D&>(b); |
| 395 | const D &d3 = (const D&)b; |
| 396 | const D &d4(b); // expected-error {{deleted}} |
| 397 | } |
| 398 | |
| 399 | namespace dr428 { // dr428: yes |
| 400 | template<typename T> T make(); |
| 401 | extern struct X x; // expected-note 5{{forward declaration}} |
| 402 | void f() { |
| 403 | throw void(); // expected-error {{cannot throw}} |
| 404 | throw make<void*>(); |
| 405 | throw make<const volatile void*>(); |
| 406 | throw x; // expected-error {{cannot throw}} |
| 407 | throw make<X&>(); // expected-error {{cannot throw}} |
| 408 | throw make<X*>(); // expected-error {{cannot throw}} |
| 409 | throw make<const volatile X&>(); // expected-error {{cannot throw}} |
| 410 | throw make<const volatile X*>(); // expected-error {{cannot throw}} |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | namespace dr429 { // dr429: yes c++11 |
| 415 | // FIXME: This rule is obviously intended to apply to C++98 as well. |
| 416 | struct A { |
| 417 | static void *operator new(size_t, size_t); |
| 418 | static void operator delete(void*, size_t); |
| 419 | } *a = new (0) A; |
| 420 | #if __cplusplus >= 201103L |
| 421 | // expected-error@-2 {{'new' expression with placement arguments refers to non-placement 'operator delete'}} |
| 422 | // expected-note@-4 {{here}} |
| 423 | #endif |
| 424 | struct B { |
| 425 | static void *operator new(size_t, size_t); |
| 426 | static void operator delete(void*); |
| 427 | static void operator delete(void*, size_t); |
| 428 | } *b = new (0) B; // ok, second delete is not a non-placement deallocation function |
| 429 | } |
| 430 | |
| 431 | namespace dr430 { // dr430: yes c++11 |
| 432 | // resolved by n2239 |
| 433 | // FIXME: This should apply in C++98 too. |
| 434 | void f(int n) { |
| 435 | int a[] = { n++, n++, n++ }; |
| 436 | #if __cplusplus < 201103L |
| 437 | // expected-warning@-2 {{multiple unsequenced modifications to 'n'}} |
| 438 | #endif |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | namespace dr431 { // dr431: yes |
| 443 | struct A { |
| 444 | template<typename T> T *get(); |
| 445 | template<typename T> struct B { |
| 446 | template<typename U> U *get(); |
| 447 | }; |
| 448 | }; |
| 449 | |
| 450 | template<typename T> void f(A a) { |
| 451 | a.get<A>()->get<T>(); |
| 452 | a.get<T>() |
| 453 | ->get<T>(); // expected-error {{use 'template'}} |
| 454 | a.get<T>()->template get<T>(); |
| 455 | a.A::get<T>(); |
| 456 | A::B<int> *b = a.get<A::B<int> >(); |
| 457 | b->get<int>(); |
| 458 | b->A::B<int>::get<int>(); |
| 459 | b->A::B<int>::get<T>(); |
| 460 | b->A::B<T>::get<int>(); // expected-error {{use 'template'}} |
| 461 | b->A::B<T>::template get<int>(); |
| 462 | b->A::B<T>::get<T>(); // expected-error {{use 'template'}} |
| 463 | b->A::B<T>::template get<T>(); |
| 464 | A::B<T> *c = a.get<A::B<T> >(); |
| 465 | c->get<int>(); // expected-error {{use 'template'}} |
| 466 | c->template get<int>(); |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | namespace dr432 { // dr432: yes |
| 471 | template<typename T> struct A {}; |
| 472 | template<typename T> struct B : A<B> {}; // expected-error {{requires template arguments}} expected-note {{declared}} |
| 473 | template<typename T> struct C : A<C<T> > {}; |
| 474 | #if __cplusplus >= 201103L |
| 475 | template<typename T> struct D : decltype(A<D>()) {}; // expected-error {{requires template arguments}} expected-note {{declared}} |
| 476 | #endif |
| 477 | } |
| 478 | |
| 479 | namespace dr433 { // dr433: yes |
| 480 | template<class T> struct S { |
| 481 | void f(union U*); |
| 482 | }; |
| 483 | U *p; |
| 484 | template<class T> void S<T>::f(union U*) {} |
| 485 | |
| 486 | S<int> s; |
| 487 | } |
| 488 | |
| 489 | namespace dr434 { // dr434: yes |
| 490 | void f() { |
| 491 | const int ci = 0; |
| 492 | int *pi = 0; |
| 493 | const int *&rpci = pi; // expected-error {{cannot bind}} |
| 494 | rpci = &ci; |
| 495 | *pi = 1; |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | // dr435: na |
| 500 | |
| 501 | namespace dr436 { // dr436: yes |
| 502 | enum E { f }; // expected-note {{previous}} |
| 503 | void f(); // expected-error {{redefinition}} |
| 504 | } |
| 505 | |
| 506 | namespace dr437 { // dr437: sup 1308 |
| 507 | // This is superseded by 1308, which is in turn superseded by 1330, |
| 508 | // which restores this rule. |
| 509 | template<typename U> struct T : U {}; |
| 510 | struct S { |
| 511 | void f() throw(S); |
| 512 | #if __cplusplus > 201402L |
| 513 | // expected-error@-2 {{ISO C++17 does not allow}} expected-note@-2 {{use 'noexcept}} |
| 514 | #endif |
| 515 | void g() throw(T<S>); |
| 516 | #if __cplusplus > 201402L |
| 517 | // expected-error@-2 {{ISO C++17 does not allow}} expected-note@-2 {{use 'noexcept}} |
| 518 | #endif |
| 519 | struct U; |
| 520 | void h() throw(U); |
| 521 | #if __cplusplus > 201402L |
| 522 | // expected-error@-2 {{ISO C++17 does not allow}} expected-note@-2 {{use 'noexcept}} |
| 523 | #endif |
| 524 | struct U {}; |
| 525 | }; |
| 526 | } |
| 527 | |
| 528 | // dr438 FIXME write a codegen test |
| 529 | // dr439 FIXME write a codegen test |
| 530 | // dr441 FIXME write a codegen test |
| 531 | // dr442: sup 348 |
| 532 | // dr443: na |
| 533 | |
| 534 | namespace dr444 { // dr444: yes |
| 535 | struct D; |
| 536 | struct B { // expected-note {{candidate function (the implicit copy}} expected-note 0-1 {{implicit move}} |
| 537 | D &operator=(D &) = delete; // expected-error 0-1{{extension}} expected-note {{deleted}} |
| 538 | }; |
| 539 | struct D : B { // expected-note {{candidate function (the implicit copy}} expected-note 0-1 {{implicit move}} |
| 540 | using B::operator=; |
| 541 | } extern d; |
| 542 | void f() { |
| 543 | d = d; // expected-error {{deleted}} |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | namespace dr445 { // dr445: yes |
| 548 | class A { void f(); }; // expected-note {{private}} |
| 549 | struct B { |
| 550 | friend void A::f(); // expected-error {{private}} |
| 551 | }; |
| 552 | } |
| 553 | |
| 554 | namespace dr446 { // dr446: yes |
| 555 | struct C; |
| 556 | struct A { |
| 557 | A(); |
| 558 | A(const A&) = delete; // expected-error 0-1{{extension}} expected-note +{{deleted}} |
| 559 | A(const C&); |
| 560 | }; |
| 561 | struct C : A {}; |
| 562 | void f(A a, bool b, C c) { |
| 563 | void(b ? a : a); |
| 564 | b ? A() : a; // expected-error {{deleted}} |
| 565 | b ? a : A(); // expected-error {{deleted}} |
| 566 | b ? A() : A(); |
| 567 | #if __cplusplus <= 201402L |
| 568 | // expected-error@-2 {{deleted}} |
| 569 | #endif |
| 570 | |
| 571 | void(b ? a : c); |
| 572 | b ? a : C(); // expected-error {{deleted}} |
| 573 | b ? c : A(); |
| 574 | #if __cplusplus <= 201402L |
| 575 | // expected-error@-2 {{deleted}} |
| 576 | #endif |
| 577 | b ? A() : C(); |
| 578 | #if __cplusplus <= 201402L |
| 579 | // expected-error@-2 {{deleted}} |
| 580 | #endif |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | namespace dr447 { // dr447: yes |
| 585 | struct A { int n; int a[4]; }; |
| 586 | template<int> struct U { |
| 587 | typedef int type; |
| 588 | template<typename V> static void h(); |
| 589 | }; |
| 590 | template<typename T> U<sizeof(T)> g(T); |
| 591 | template<typename T, int N> void f(int n) { |
| 592 | // ok, not type dependent |
| 593 | g(__builtin_offsetof(A, n)).h<int>(); |
| 594 | g(__builtin_offsetof(T, n)).h<int>(); |
| 595 | // value dependent if first argument is a dependent type |
| 596 | U<__builtin_offsetof(A, n)>::type a; |
| 597 | U<__builtin_offsetof(T, n)>::type b; // expected-error +{{}} expected-warning 0+{{}} |
| 598 | // as an extension, we allow the member-designator to include array indices |
| 599 | g(__builtin_offsetof(A, a[0])).h<int>(); |
| 600 | g(__builtin_offsetof(A, a[N])).h<int>(); |
| 601 | U<__builtin_offsetof(A, a[0])>::type c; |
| 602 | U<__builtin_offsetof(A, a[N])>::type d; // expected-error +{{}} expected-warning 0+{{}} |
| 603 | } |
| 604 | } |
| 605 | |
| 606 | namespace dr448 { // dr448: yes |
| 607 | template<typename T = int> void f(int); // expected-error 0-1{{extension}} expected-note {{no known conversion}} |
| 608 | template<typename T> void g(T t) { |
| 609 | f<T>(t); // expected-error {{neither visible in the template definition nor found by argument-dependent lookup}} |
| 610 | dr448::f(t); // expected-error {{no matching function}} |
| 611 | } |
| 612 | template<typename T> void f(T); // expected-note {{should be declared prior to the call site}} |
| 613 | namespace HideFromADL { struct X {}; } |
| 614 | template void g(int); // ok |
| 615 | template void g(HideFromADL::X); // expected-note {{instantiation of}} |
| 616 | } |
| 617 | |
| 618 | // dr449: na |
| 619 | |
| 620 | namespace dr450 { // dr450: yes |
| 621 | typedef int A[3]; |
| 622 | void f1(const A &); |
| 623 | void f2(A &); // expected-note +{{not viable}} |
| 624 | struct S { A n; }; |
| 625 | void g() { |
| 626 | f1(S().n); |
| 627 | f2(S().n); // expected-error {{no match}}} |
| 628 | } |
| 629 | #if __cplusplus >= 201103L |
| 630 | void h() { |
| 631 | f1(A{}); |
| 632 | f2(A{}); // expected-error {{no match}} |
| 633 | } |
| 634 | #endif |
| 635 | } |
| 636 | |
| 637 | namespace dr451 { // dr451: yes |
| 638 | const int a = 1 / 0; // expected-warning {{undefined}} |
| 639 | const int b = 1 / 0; // expected-warning {{undefined}} |
| 640 | int arr[b]; // expected-error +{{variable length arr}} |
| 641 | } |
| 642 | |
| 643 | namespace dr452 { // dr452: yes |
| 644 | struct A { |
| 645 | int a, b, c; |
| 646 | A *p; |
| 647 | int f(); |
| 648 | A() : a(f()), b(this->f() + a), c(this->a), p(this) {} |
| 649 | }; |
| 650 | } |
| 651 | |
| 652 | // dr454 FIXME write a codegen test |
| 653 | |
| 654 | namespace dr456 { // dr456: yes |
| 655 | // sup 903 c++11 |
| 656 | const int null = 0; |
| 657 | void *p = null; |
| 658 | #if __cplusplus >= 201103L |
| 659 | // expected-error@-2 {{cannot initialize}} |
| 660 | #else |
| 661 | // expected-warning@-4 {{null}} |
| 662 | #endif |
| 663 | |
| 664 | const bool f = false; |
| 665 | void *q = f; |
| 666 | #if __cplusplus >= 201103L |
| 667 | // expected-error@-2 {{cannot initialize}} |
| 668 | #else |
| 669 | // expected-warning@-4 {{null}} |
| 670 | #endif |
| 671 | } |
| 672 | |
| 673 | namespace dr457 { // dr457: yes |
| 674 | const int a = 1; |
| 675 | const volatile int b = 1; |
| 676 | int ax[a]; |
| 677 | int bx[b]; // expected-error +{{variable length array}} |
| 678 | |
| 679 | enum E { |
| 680 | ea = a, |
| 681 | eb = b // expected-error {{constant}} expected-note {{read of volatile-qualified}} |
| 682 | }; |
| 683 | } |
| 684 | |
| 685 | namespace dr458 { // dr458: no |
| 686 | struct A { |
| 687 | int T; |
| 688 | int f(); |
| 689 | template<typename> int g(); |
| 690 | }; |
| 691 | |
| 692 | template<typename> struct B : A { |
| 693 | int f(); |
| 694 | template<typename> int g(); |
| 695 | template<typename> int h(); |
| 696 | }; |
| 697 | |
| 698 | int A::f() { |
| 699 | return T; |
| 700 | } |
| 701 | template<typename T> |
| 702 | int A::g() { |
| 703 | return T; // FIXME: this is invalid, it finds the template parameter |
| 704 | } |
| 705 | |
| 706 | template<typename T> |
| 707 | int B<T>::f() { |
| 708 | return T; |
| 709 | } |
| 710 | template<typename T> template<typename U> |
| 711 | int B<T>::g() { |
| 712 | return T; |
| 713 | } |
| 714 | template<typename U> template<typename T> |
| 715 | int B<U>::h() { |
| 716 | return T; // FIXME: this is invalid, it finds the template parameter |
| 717 | } |
| 718 | } |
| 719 | |
| 720 | namespace dr460 { // dr460: yes |
| 721 | namespace X { namespace Q { int n; } } |
| 722 | namespace Y { |
| 723 | using X; // expected-error {{requires a qualified name}} |
| 724 | using dr460::X; // expected-error {{cannot refer to a namespace}} |
| 725 | using X::Q; // expected-error {{cannot refer to a namespace}} |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | // dr461: na |
| 730 | // dr462 FIXME write a codegen test |
| 731 | // dr463: na |
| 732 | // dr464: na |
| 733 | // dr465: na |
| 734 | |
| 735 | namespace dr466 { // dr466: no |
| 736 | typedef int I; |
| 737 | typedef const int CI; |
| 738 | typedef volatile int VI; |
| 739 | void f(int *a, CI *b, VI *c) { |
| 740 | a->~I(); |
| 741 | a->~CI(); |
| 742 | a->~VI(); |
| 743 | a->I::~I(); |
| 744 | a->CI::~CI(); |
| 745 | a->VI::~VI(); |
| 746 | |
| 747 | a->CI::~VI(); // FIXME: This is invalid; CI and VI are not the same scalar type. |
| 748 | |
| 749 | b->~I(); |
| 750 | b->~CI(); |
| 751 | b->~VI(); |
| 752 | b->I::~I(); |
| 753 | b->CI::~CI(); |
| 754 | b->VI::~VI(); |
| 755 | |
| 756 | c->~I(); |
| 757 | c->~CI(); |
| 758 | c->~VI(); |
| 759 | c->I::~I(); |
| 760 | c->CI::~CI(); |
| 761 | c->VI::~VI(); |
| 762 | } |
| 763 | } |
| 764 | |
| 765 | namespace dr467 { // dr467: yes |
| 766 | int stuff(); |
| 767 | |
| 768 | int f() { |
| 769 | static bool done; |
| 770 | if (done) |
| 771 | goto later; |
| 772 | static int k = stuff(); |
| 773 | done = true; |
| 774 | later: |
| 775 | return k; |
| 776 | } |
| 777 | int g() { |
| 778 | goto later; // expected-error {{cannot jump}} |
| 779 | int k = stuff(); // expected-note {{bypasses variable initialization}} |
| 780 | later: |
| 781 | return k; |
| 782 | } |
| 783 | } |
| 784 | |
| 785 | namespace dr468 { // dr468: yes c++11 |
| 786 | // FIXME: Should we allow this in C++98 too? |
| 787 | template<typename> struct A { |
| 788 | template<typename> struct B { |
| 789 | static int C; |
| 790 | }; |
| 791 | }; |
| 792 | int k = dr468::template A<int>::template B<char>::C; |
| 793 | #if __cplusplus < 201103L |
| 794 | // expected-error@-2 2{{'template' keyword outside of a template}} |
| 795 | #endif |
| 796 | } |
| 797 | |
| 798 | namespace dr469 { // dr469: no |
| 799 | template<typename T> struct X; // expected-note {{here}} |
| 800 | template<typename T> struct X<const T> {}; |
| 801 | X<int&> x; // expected-error {{undefined}} |
| 802 | } |
| 803 | |
| 804 | namespace dr470 { // dr470: yes |
| 805 | template<typename T> struct A { |
| 806 | struct B {}; |
| 807 | }; |
| 808 | template<typename T> struct C { |
| 809 | }; |
| 810 | |
| 811 | template struct A<int>; // expected-note {{previous}} |
| 812 | template struct A<int>::B; // expected-error {{duplicate explicit instantiation}} |
| 813 | |
| 814 | // ok, instantiating C<char> doesn't instantiate base class members. |
| 815 | template struct A<char>; |
| 816 | template struct C<char>; |
| 817 | } |
| 818 | |
| 819 | namespace dr471 { // dr471: yes |
| 820 | struct A { int n; }; |
| 821 | struct B : private virtual A {}; |
| 822 | struct C : protected virtual A {}; |
| 823 | struct D : B, C { int f() { return n; } }; |
| 824 | struct E : private virtual A { |
| 825 | using A::n; |
| 826 | }; |
| 827 | struct F : E, B { int f() { return n; } }; |
| 828 | struct G : virtual A { |
| 829 | private: |
| 830 | using A::n; // expected-note {{here}} |
| 831 | }; |
| 832 | struct H : B, G { int f() { return n; } }; // expected-error {{private}} |
| 833 | } |
| 834 | |
| 835 | namespace dr474 { // dr474: yes |
| 836 | namespace N { |
| 837 | struct S { |
| 838 | void f(); |
| 839 | }; |
| 840 | } |
| 841 | void N::S::f() { |
| 842 | void g(); // expected-note {{previous}} |
| 843 | } |
| 844 | int g(); |
| 845 | namespace N { |
| 846 | int g(); // expected-error {{cannot be overloaded}} |
| 847 | } |
| 848 | } |
| 849 | |
| 850 | // dr475 FIXME write a codegen test |
| 851 | |
| 852 | namespace dr477 { // dr477: 3.5 |
| 853 | struct A { |
| 854 | explicit A(); |
| 855 | virtual void f(); |
| 856 | }; |
| 857 | struct B { |
| 858 | friend explicit A::A(); // expected-error {{'explicit' is invalid in friend declarations}} |
| 859 | friend virtual void A::f(); // expected-error {{'virtual' is invalid in friend declarations}} |
| 860 | }; |
| 861 | explicit A::A() {} // expected-error {{can only be specified inside the class definition}} |
| 862 | virtual void A::f() {} // expected-error {{can only be specified inside the class definition}} |
| 863 | } |
| 864 | |
| 865 | namespace dr478 { // dr478: yes |
| 866 | struct A { virtual void f() = 0; }; // expected-note {{unimplemented}} |
| 867 | void f(A *a); |
| 868 | void f(A a[10]); // expected-error {{array of abstract class type}} |
| 869 | } |
| 870 | |
| 871 | namespace dr479 { // dr479: yes |
| 872 | struct S { |
| 873 | S(); |
| 874 | private: |
| 875 | S(const S&); // expected-note +{{here}} |
| 876 | ~S(); // expected-note +{{here}} |
| 877 | }; |
| 878 | void f() { |
| 879 | throw S(); |
| 880 | // expected-error@-1 {{temporary of type 'dr479::S' has private destructor}} |
| 881 | // expected-error@-2 {{exception object of type 'dr479::S' has private destructor}} |
| 882 | #if __cplusplus < 201103L |
| 883 | // expected-error@-4 {{C++98 requires an accessible copy constructor}} |
| 884 | #endif |
| 885 | #if __cplusplus <= 201402L |
| 886 | // expected-error@-7 {{calling a private constructor}} (copy ctor) |
| 887 | #endif |
| 888 | } |
| 889 | void g() { |
| 890 | S s; // expected-error {{private destructor}}} |
| 891 | throw s; |
| 892 | // expected-error@-1 {{calling a private constructor}} |
| 893 | // expected-error@-2 {{exception object of type 'dr479::S' has private destructor}} |
| 894 | } |
| 895 | void h() { |
| 896 | try { |
| 897 | f(); |
| 898 | g(); |
| 899 | } catch (S s) { |
| 900 | // expected-error@-1 {{calling a private constructor}} |
| 901 | // expected-error@-2 {{variable of type 'dr479::S' has private destructor}} |
| 902 | } |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | namespace dr480 { // dr480: yes |
| 907 | struct A { int n; }; |
| 908 | struct B : A {}; |
| 909 | struct C : virtual B {}; |
| 910 | struct D : C {}; |
| 911 | |
| 912 | int A::*a = &A::n; |
| 913 | int D::*b = a; // expected-error {{virtual base}} |
| 914 | |
| 915 | extern int D::*c; |
| 916 | int A::*d = static_cast<int A::*>(c); // expected-error {{virtual base}} |
| 917 | |
| 918 | D *e; |
| 919 | A *f = e; |
| 920 | D *g = static_cast<D*>(f); // expected-error {{virtual base}} |
| 921 | |
| 922 | extern D &i; |
| 923 | A &j = i; |
| 924 | D &k = static_cast<D&>(j); // expected-error {{virtual base}} |
| 925 | } |
| 926 | |
| 927 | namespace dr481 { // dr481: yes |
| 928 | template<class T, T U> class A { T *x; }; |
| 929 | T *x; // expected-error {{unknown type}} |
| 930 | |
| 931 | template<class T *U> class B { T *x; }; |
| 932 | T *y; // ok |
| 933 | |
| 934 | struct C { |
| 935 | template<class T> void f(class D *p); |
| 936 | }; |
| 937 | D *z; // ok |
| 938 | |
| 939 | template<typename A = C, typename C = A> struct E { |
| 940 | void f() { |
| 941 | typedef ::dr481::C c; // expected-note {{previous}} |
| 942 | typedef C c; // expected-error {{different type}} |
| 943 | } |
| 944 | }; |
| 945 | template struct E<>; // ok |
| 946 | template struct E<int>; // expected-note {{instantiation of}} |
| 947 | |
| 948 | template<template<typename U_no_typo_correction> class A, |
| 949 | A<int> *B, |
| 950 | U_no_typo_correction *C> // expected-error {{unknown type}} |
| 951 | struct F { |
| 952 | U_no_typo_correction *x; // expected-error {{unknown type}} |
| 953 | }; |
| 954 | |
| 955 | template<template<class H *> class> struct G { |
| 956 | H *x; |
| 957 | }; |
| 958 | H *q; |
| 959 | |
| 960 | typedef int N; |
| 961 | template<N X, typename N, template<N Y> class T> struct I; |
| 962 | template<char*> struct J; |
| 963 | I<123, char*, J> *j; |
| 964 | } |
| 965 | |
| 966 | namespace dr482 { // dr482: 3.5 |
| 967 | extern int a; |
| 968 | void f(); |
| 969 | |
| 970 | int dr482::a = 0; // expected-warning {{extra qualification}} |
| 971 | void dr482::f() {} // expected-warning {{extra qualification}} |
| 972 | |
| 973 | inline namespace X { // expected-error 0-1{{C++11 feature}} |
| 974 | extern int b; |
| 975 | void g(); |
| 976 | struct S; |
| 977 | } |
| 978 | int dr482::b = 0; // expected-warning {{extra qualification}} |
| 979 | void dr482::g() {} // expected-warning {{extra qualification}} |
| 980 | struct dr482::S {}; // expected-warning {{extra qualification}} |
| 981 | |
| 982 | void dr482::f(); // expected-warning {{extra qualification}} |
| 983 | void dr482::g(); // expected-warning {{extra qualification}} |
| 984 | |
| 985 | // FIXME: The following are valid in DR482's wording, but these are bugs in |
| 986 | // the wording which we deliberately don't implement. |
| 987 | namespace N { typedef int type; } |
| 988 | typedef int N::type; // expected-error {{typedef declarator cannot be qualified}} |
| 989 | struct A { |
| 990 | struct B; |
| 991 | struct A::B {}; // expected-error {{extra qualification}} |
| 992 | |
| 993 | #if __cplusplus >= 201103L |
| 994 | enum class C; |
| 995 | enum class A::C {}; // expected-error {{extra qualification}} |
| 996 | #endif |
| 997 | }; |
| 998 | } |
| 999 | |
| 1000 | namespace dr483 { // dr483: yes |
| 1001 | namespace climits { |
| 1002 | int check1[__SCHAR_MAX__ >= 127 ? 1 : -1]; |
| 1003 | int check2[__SHRT_MAX__ >= 32767 ? 1 : -1]; |
| 1004 | int check3[__INT_MAX__ >= 32767 ? 1 : -1]; |
| 1005 | int check4[__LONG_MAX__ >= 2147483647 ? 1 : -1]; |
| 1006 | int check5[__LONG_LONG_MAX__ >= 9223372036854775807 ? 1 : -1]; |
| 1007 | #if __cplusplus < 201103L |
| 1008 | // expected-error@-2 {{extension}} |
| 1009 | #endif |
| 1010 | } |
| 1011 | namespace cstdint { |
| 1012 | int check1[__PTRDIFF_WIDTH__ >= 16 ? 1 : -1]; |
| 1013 | int check2[__SIG_ATOMIC_WIDTH__ >= 8 ? 1 : -1]; |
| 1014 | int check3[__SIZE_WIDTH__ >= 16 ? 1 : -1]; |
| 1015 | int check4[__WCHAR_WIDTH__ >= 8 ? 1 : -1]; |
| 1016 | int check5[__WINT_WIDTH__ >= 16 ? 1 : -1]; |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | namespace dr484 { // dr484: yes |
| 1021 | struct A { |
| 1022 | A(); |
| 1023 | void f(); |
| 1024 | }; |
| 1025 | typedef const A CA; |
| 1026 | void CA::f() { |
| 1027 | this->~CA(); |
| 1028 | this->CA::~A(); |
| 1029 | this->CA::A::~A(); |
| 1030 | } |
| 1031 | CA::A() {} |
| 1032 | |
| 1033 | struct B : CA { |
| 1034 | B() : CA() {} |
| 1035 | void f() { return CA::f(); } |
| 1036 | }; |
| 1037 | |
| 1038 | struct C; |
| 1039 | typedef C CT; // expected-note {{here}} |
| 1040 | struct CT {}; // expected-error {{conflicts with typedef}} |
| 1041 | |
| 1042 | namespace N { |
| 1043 | struct D; |
| 1044 | typedef D DT; // expected-note {{here}} |
| 1045 | } |
| 1046 | struct N::DT {}; // expected-error {{conflicts with typedef}} |
| 1047 | |
| 1048 | typedef struct { |
| 1049 | S(); // expected-error {{requires a type}} |
| 1050 | } S; |
| 1051 | } |
| 1052 | |
| 1053 | namespace dr485 { // dr485: yes |
| 1054 | namespace N { |
| 1055 | struct S {}; |
| 1056 | int operator+(S, S); |
| 1057 | template<typename T> int f(S); |
| 1058 | } |
| 1059 | template<typename T> int f(); |
| 1060 | |
| 1061 | N::S s; |
| 1062 | int a = operator+(s, s); |
| 1063 | int b = f<int>(s); |
| 1064 | } |
| 1065 | |
| 1066 | namespace dr486 { // dr486: yes |
| 1067 | template<typename T> T f(T *); // expected-note 2{{substitution failure}} |
| 1068 | int &f(...); |
| 1069 | |
| 1070 | void g(); |
| 1071 | int n[10]; |
| 1072 | |
| 1073 | void h() { |
| 1074 | int &a = f(&g); |
| 1075 | int &b = f(&n); |
| 1076 | f<void()>(&g); // expected-error {{no match}} |
| 1077 | f<int[10]>(&n); // expected-error {{no match}} |
| 1078 | } |
| 1079 | } |
| 1080 | |
| 1081 | namespace dr487 { // dr487: yes |
| 1082 | enum E { e }; |
| 1083 | int operator+(int, E); |
| 1084 | int i[4 + e]; // expected-error 2{{variable length array}} |
| 1085 | } |
| 1086 | |
| 1087 | namespace dr488 { // dr488: yes c++11 |
| 1088 | template <typename T> void f(T); |
| 1089 | void f(int); |
| 1090 | void g() { |
| 1091 | // FIXME: It seems CWG thought this should be a SFINAE failure prior to |
| 1092 | // allowing local types as template arguments. In C++98, we should either |
| 1093 | // allow local types as template arguments or treat this as a SFINAE |
| 1094 | // failure. |
| 1095 | enum E { e }; |
| 1096 | f(e); |
| 1097 | #if __cplusplus < 201103L |
| 1098 | // expected-error@-2 {{local type}} |
| 1099 | #endif |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | // dr489: na |
| 1104 | |
| 1105 | namespace dr490 { // dr490: yes |
| 1106 | template<typename T> struct X {}; |
| 1107 | |
| 1108 | struct A { |
| 1109 | typedef int T; |
| 1110 | struct K {}; // expected-note {{declared}} |
| 1111 | |
| 1112 | int f(T); |
| 1113 | int g(T); |
| 1114 | int h(X<T>); |
| 1115 | int X<T>::*i(); // expected-note {{previous}} |
| 1116 | int K::*j(); |
| 1117 | |
| 1118 | template<typename T> T k(); |
| 1119 | |
| 1120 | operator X<T>(); |
| 1121 | }; |
| 1122 | |
| 1123 | struct B { |
| 1124 | typedef char T; |
| 1125 | typedef int U; |
| 1126 | friend int A::f(T); |
| 1127 | friend int A::g(U); |
| 1128 | friend int A::h(X<T>); |
| 1129 | |
| 1130 | // FIXME: Per this DR, these two are valid! That is another defect |
| 1131 | // (no number yet...) which will eventually supersede this one. |
| 1132 | friend int X<T>::*A::i(); // expected-error {{return type}} |
| 1133 | friend int K::*A::j(); // expected-error {{undeclared identifier 'K'; did you mean 'A::K'?}} |
| 1134 | |
| 1135 | // ok, lookup finds B::T, not A::T, so return type matches |
| 1136 | friend char A::k<T>(); |
| 1137 | friend int A::k<U>(); |
| 1138 | |
| 1139 | // A conversion-type-id in a conversion-function-id is always looked up in |
| 1140 | // the class of the conversion function first. |
| 1141 | friend A::operator X<T>(); |
| 1142 | }; |
| 1143 | } |
| 1144 | |
| 1145 | namespace dr491 { // dr491: dup 413 |
| 1146 | struct A {} a, b[3] = { a, {} }; |
| 1147 | A c[2] = { a, {}, b[1] }; // expected-error {{excess elements}} |
| 1148 | } |
| 1149 | |
| 1150 | // dr492 FIXME write a codegen test |
| 1151 | |
| 1152 | namespace dr493 { // dr493: dup 976 |
| 1153 | struct X { |
| 1154 | template <class T> operator const T &() const; |
| 1155 | }; |
| 1156 | void f() { |
| 1157 | if (X()) { |
| 1158 | } |
| 1159 | } |
| 1160 | } |
| 1161 | |
| 1162 | namespace dr494 { // dr494: dup 372 |
| 1163 | class A { |
| 1164 | class B {}; |
| 1165 | friend class C; |
| 1166 | }; |
| 1167 | class C : A::B { |
| 1168 | A::B x; |
| 1169 | class D : A::B { |
| 1170 | A::B y; |
| 1171 | }; |
| 1172 | }; |
| 1173 | } |
| 1174 | |
| 1175 | namespace dr495 { // dr495: 3.5 |
| 1176 | template<typename T> |
| 1177 | struct S { |
| 1178 | operator int() { return T::error; } |
| 1179 | template<typename U> operator U(); |
| 1180 | }; |
| 1181 | S<int> s; |
| 1182 | long n = s; |
| 1183 | |
| 1184 | template<typename T> |
| 1185 | struct S2 { |
| 1186 | template<typename U> operator U(); |
| 1187 | operator int() { return T::error; } |
| 1188 | }; |
| 1189 | S2<int> s2; |
| 1190 | long n2 = s2; |
| 1191 | } |
| 1192 | |
| 1193 | namespace dr496 { // dr496: sup 2094 |
| 1194 | struct A { int n; }; |
| 1195 | struct B { volatile int n; }; |
| 1196 | int check1[ __is_trivially_copyable(const int) ? 1 : -1]; |
| 1197 | // This checks the dr2094 behavior, not dr496 |
| 1198 | int check2[ __is_trivially_copyable(volatile int) ? 1 : -1]; |
| 1199 | int check3[ __is_trivially_constructible(A, const A&) ? 1 : -1]; |
| 1200 | int check4[ __is_trivially_constructible(B, const B&) ? 1 : -1]; |
| 1201 | int check5[ __is_trivially_assignable(A, const A&) ? 1 : -1]; |
| 1202 | int check6[ __is_trivially_assignable(B, const B&) ? 1 : -1]; |
| 1203 | } |
| 1204 | |
| 1205 | namespace dr497 { // dr497: sup 253 |
| 1206 | void before() { |
| 1207 | struct S { |
| 1208 | mutable int i; |
| 1209 | }; |
| 1210 | const S cs; |
| 1211 | int S::*pm = &S::i; |
| 1212 | cs.*pm = 88; // expected-error {{not assignable}} |
| 1213 | } |
| 1214 | |
| 1215 | void after() { |
| 1216 | struct S { |
| 1217 | S() : i(0) {} |
| 1218 | mutable int i; |
| 1219 | }; |
| 1220 | const S cs; |
| 1221 | int S::*pm = &S::i; |
| 1222 | cs.*pm = 88; // expected-error {{not assignable}} |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | namespace dr499 { // dr499: yes |
| 1227 | extern char str[]; |
| 1228 | void f() { throw str; } |
| 1229 | } |
| 1230 | |