| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
| 2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
| 3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
| 4 | |
| 5 | struct A {}; |
| 6 | enum B { Dummy }; |
| 7 | namespace C {} |
| 8 | struct D : A {}; |
| 9 | struct E : A {}; |
| 10 | struct F : D, E {}; |
| 11 | struct G : virtual D {}; |
| 12 | class H : A {}; // expected-note 2{{implicitly declared private here}} |
| 13 | |
| 14 | int A::*pdi1; |
| 15 | int (::A::*pdi2); |
| 16 | int (A::*pfi)(int); |
| 17 | void (*A::*ppfie)() throw(); // expected-error {{exception specifications are not allowed beyond a single level of indirection}} |
| 18 | |
| 19 | int B::*pbi; |
| 20 | #if __cplusplus <= 199711L // C++03 or earlier modes |
| 21 | // expected-warning@-2 {{use of enumeration in a nested name specifier is a C++11 extension}} |
| 22 | #endif |
| 23 | // expected-error@-4 {{'pbi' does not point into a class}} |
| 24 | int C::*pci; // expected-error {{'pci' does not point into a class}} |
| 25 | void A::*pdv; // expected-error {{'pdv' declared as a member pointer to void}} |
| 26 | int& A::*pdr; // expected-error {{'pdr' declared as a member pointer to a reference}} |
| 27 | |
| 28 | void f() { |
| 29 | // This requires tentative parsing. |
| 30 | int (A::*pf)(int, int); |
| 31 | |
| 32 | // Implicit conversion to bool. |
| 33 | bool b = pdi1; |
| 34 | b = pfi; |
| 35 | |
| 36 | // Conversion from null pointer constant. |
| 37 | pf = 0; |
| 38 | pf = __null; |
| 39 | |
| 40 | // Conversion to member of derived. |
| 41 | int D::*pdid = pdi1; |
| 42 | pdid = pdi2; |
| 43 | |
| 44 | // Fail conversion due to ambiguity and virtuality. |
| 45 | int F::*pdif = pdi1; // expected-error {{ambiguous conversion from pointer to member of base class 'A' to pointer to member of derived class 'F':}} |
| 46 | int G::*pdig = pdi1; // expected-error {{conversion from pointer to member of class 'A' to pointer to member of class 'G' via virtual base 'D' is not allowed}} |
| 47 | |
| 48 | // Conversion to member of base. |
| 49 | pdi1 = pdid; // expected-error {{assigning to 'int A::*' from incompatible type 'int D::*'}} |
| 50 | |
| 51 | // Comparisons |
| 52 | int (A::*pf2)(int, int); |
| 53 | int (D::*pf3)(int, int) = 0; |
| 54 | bool b1 = (pf == pf2); (void)b1; |
| 55 | bool b2 = (pf != pf2); (void)b2; |
| 56 | bool b3 = (pf == pf3); (void)b3; |
| 57 | bool b4 = (pf != 0); (void)b4; |
| 58 | } |
| 59 | |
| 60 | struct TheBase |
| 61 | { |
| 62 | void d(); |
| 63 | }; |
| 64 | |
| 65 | struct HasMembers : TheBase |
| 66 | { |
| 67 | int i; |
| 68 | void f(); |
| 69 | |
| 70 | void g(); |
| 71 | void g(int); |
| 72 | static void g(double); |
| 73 | }; |
| 74 | |
| 75 | namespace Fake |
| 76 | { |
| 77 | int i; |
| 78 | void f(); |
| 79 | } |
| 80 | |
| 81 | void g() { |
| 82 | HasMembers hm; |
| 83 | |
| 84 | int HasMembers::*pmi = &HasMembers::i; |
| 85 | int *pni = &Fake::i; |
| 86 | int *pmii = &hm.i; |
| 87 | |
| 88 | void (HasMembers::*pmf)() = &HasMembers::f; |
| 89 | void (*pnf)() = &Fake::f; |
| 90 | &hm.f; // expected-error {{cannot create a non-constant pointer to member function}} |
| 91 | |
| 92 | void (HasMembers::*pmgv)() = &HasMembers::g; |
| 93 | void (HasMembers::*pmgi)(int) = &HasMembers::g; |
| 94 | void (*pmgd)(double) = &HasMembers::g; |
| 95 | |
| 96 | void (HasMembers::*pmd)() = &HasMembers::d; |
| 97 | } |
| 98 | |
| 99 | struct Incomplete; |
| 100 | |
| 101 | void h() { |
| 102 | HasMembers hm, *phm = &hm; |
| 103 | |
| 104 | int HasMembers::*pi = &HasMembers::i; |
| 105 | hm.*pi = 0; |
| 106 | int i = phm->*pi; |
| 107 | (void)&(hm.*pi); |
| 108 | (void)&(phm->*pi); |
| 109 | (void)&((&hm)->*pi); |
| 110 | |
| 111 | void (HasMembers::*pf)() = &HasMembers::f; |
| 112 | (hm.*pf)(); |
| 113 | (phm->*pf)(); |
| 114 | |
| 115 | (void)(hm->*pi); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'HasMembers'}} |
| 116 | (void)(phm.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'HasMembers *'}} |
| 117 | (void)(i.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'int'}} |
| 118 | int *ptr; |
| 119 | (void)(ptr->*pi); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'int *'}} |
| 120 | |
| 121 | int A::*pai = 0; |
| 122 | D d, *pd = &d; |
| 123 | (void)(d.*pai); |
| 124 | (void)(pd->*pai); |
| 125 | F f, *ptrf = &f; |
| 126 | (void)(f.*pai); // expected-error {{ambiguous conversion from derived class 'F' to base class 'A'}} |
| 127 | (void)(ptrf->*pai); // expected-error {{ambiguous conversion from derived class 'F' to base class 'A'}} |
| 128 | H h, *ptrh = &h; |
| 129 | (void)(h.*pai); // expected-error {{cannot cast 'H' to its private base class 'A'}} |
| 130 | (void)(ptrh->*pai); // expected-error {{cannot cast 'H' to its private base class 'A'}} |
| 131 | |
| 132 | (void)(hm.*i); // expected-error {{pointer-to-member}} |
| 133 | (void)(phm->*i); // expected-error {{pointer-to-member}} |
| 134 | |
| 135 | // Okay |
| 136 | Incomplete *inc; |
| 137 | int Incomplete::*pii = 0; |
| 138 | (void)(inc->*pii); |
| 139 | } |
| 140 | |
| 141 | struct OverloadsPtrMem |
| 142 | { |
| 143 | int operator ->*(const char *); |
| 144 | }; |
| 145 | |
| 146 | void i() { |
| 147 | OverloadsPtrMem m; |
| 148 | int foo = m->*"Awesome!"; |
| 149 | } |
| 150 | |
| 151 | namespace pr5985 { |
| 152 | struct c { |
| 153 | void h(); |
| 154 | void f() { |
| 155 | void (c::*p)(); |
| 156 | p = &h; // expected-error {{must explicitly qualify}} |
| 157 | p = &this->h; // expected-error {{cannot create a non-constant pointer to member function}} |
| 158 | p = &(*this).h; // expected-error {{cannot create a non-constant pointer to member function}} |
| 159 | } |
| 160 | }; |
| 161 | } |
| 162 | |
| 163 | namespace pr6783 { |
| 164 | struct Base {}; |
| 165 | struct X; // expected-note {{forward declaration}} |
| 166 | |
| 167 | int test1(int Base::* p2m, X* object) |
| 168 | { |
| 169 | return object->*p2m; // expected-error {{left hand operand to ->*}} |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | namespace PR7176 { |
| 174 | namespace base |
| 175 | { |
| 176 | struct Process |
| 177 | { }; |
| 178 | struct Continuous : Process |
| 179 | { |
| 180 | bool cond(); |
| 181 | }; |
| 182 | } |
| 183 | |
| 184 | typedef bool( base::Process::*Condition )(); |
| 185 | |
| 186 | void m() |
| 187 | { (void)(Condition) &base::Continuous::cond; } |
| 188 | } |
| 189 | |
| 190 | namespace rdar8358512 { |
| 191 | // We can't call this with an overload set because we're not allowed |
| 192 | // to look into overload sets unless the parameter has some kind of |
| 193 | // function type. |
| 194 | template <class F> void bind(F f); // expected-note 12 {{candidate template ignored}} |
| 195 | template <class F, class T> void bindmem(F (T::*f)()); // expected-note 4 {{candidate template ignored}} |
| 196 | template <class F> void bindfn(F (*f)()); // expected-note 4 {{candidate template ignored}} |
| 197 | |
| 198 | struct A { |
| 199 | void nonstat(); |
| 200 | void nonstat(int); |
| 201 | |
| 202 | void mixed(); |
| 203 | static void mixed(int); |
| 204 | |
| 205 | static void stat(); |
| 206 | static void stat(int); |
| 207 | |
| 208 | template <typename T> struct Test0 { |
| 209 | void test() { |
| 210 | bind(&nonstat); // expected-error {{no matching function for call}} |
| 211 | bind(&A::nonstat); // expected-error {{no matching function for call}} |
| 212 | |
| 213 | bind(&mixed); // expected-error {{no matching function for call}} |
| 214 | bind(&A::mixed); // expected-error {{no matching function for call}} |
| 215 | |
| 216 | bind(&stat); // expected-error {{no matching function for call}} |
| 217 | bind(&A::stat); // expected-error {{no matching function for call}} |
| 218 | } |
| 219 | }; |
| 220 | |
| 221 | template <typename T> struct Test1 { |
| 222 | void test() { |
| 223 | bindmem(&nonstat); // expected-error {{no matching function for call}} |
| 224 | bindmem(&A::nonstat); |
| 225 | |
| 226 | bindmem(&mixed); // expected-error {{no matching function for call}} |
| 227 | bindmem(&A::mixed); |
| 228 | |
| 229 | bindmem(&stat); // expected-error {{no matching function for call}} |
| 230 | bindmem(&A::stat); // expected-error {{no matching function for call}} |
| 231 | } |
| 232 | }; |
| 233 | |
| 234 | template <typename T> struct Test2 { |
| 235 | void test() { |
| 236 | bindfn(&nonstat); // expected-error {{no matching function for call}} |
| 237 | bindfn(&A::nonstat); // expected-error {{no matching function for call}} |
| 238 | |
| 239 | bindfn(&mixed); // expected-error {{no matching function for call}} |
| 240 | bindfn(&A::mixed); // expected-error {{no matching function for call}} |
| 241 | |
| 242 | bindfn(&stat); |
| 243 | bindfn(&A::stat); |
| 244 | } |
| 245 | }; |
| 246 | }; |
| 247 | |
| 248 | template <class T> class B { |
| 249 | void nonstat(); |
| 250 | void nonstat(int); |
| 251 | |
| 252 | void mixed(); |
| 253 | static void mixed(int); |
| 254 | |
| 255 | static void stat(); |
| 256 | static void stat(int); |
| 257 | |
| 258 | // None of these can be diagnosed yet, because the arguments are |
| 259 | // still dependent. |
| 260 | void test0a() { |
| 261 | bind(&nonstat); |
| 262 | bind(&B::nonstat); |
| 263 | |
| 264 | bind(&mixed); |
| 265 | bind(&B::mixed); |
| 266 | |
| 267 | bind(&stat); |
| 268 | bind(&B::stat); |
| 269 | } |
| 270 | |
| 271 | void test0b() { |
| 272 | bind(&nonstat); // expected-error {{no matching function for call}} |
| 273 | bind(&B::nonstat); // expected-error {{no matching function for call}} |
| 274 | |
| 275 | bind(&mixed); // expected-error {{no matching function for call}} |
| 276 | bind(&B::mixed); // expected-error {{no matching function for call}} |
| 277 | |
| 278 | bind(&stat); // expected-error {{no matching function for call}} |
| 279 | bind(&B::stat); // expected-error {{no matching function for call}} |
| 280 | } |
| 281 | }; |
| 282 | |
| 283 | template void B<int>::test0b(); // expected-note {{in instantiation}} |
| 284 | } |
| 285 | |
| 286 | namespace PR9973 { |
| 287 | template<class R, class T> struct dm |
| 288 | { |
| 289 | typedef R T::*F; |
| 290 | F f_; |
| 291 | template<class U> int & call(U u) |
| 292 | { return u->*f_; } // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} expected-error {{non-const lvalue reference to type 'int' cannot bind to a temporary of type 'int'}} |
| 293 | |
| 294 | template<class U> int operator()(U u) |
| 295 | { call(u); } // expected-note{{in instantiation of}} |
| 296 | }; |
| 297 | |
| 298 | template<class R, class T> |
| 299 | dm<R, T> mem_fn(R T::*) ; |
| 300 | |
| 301 | struct test |
| 302 | { int nullary_v(); }; |
| 303 | |
| 304 | void f() |
| 305 | { |
| 306 | test* t; |
| 307 | mem_fn(&test::nullary_v)(t); // expected-note{{in instantiation of}} |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | namespace test8 { |
| 312 | struct A { int foo; }; |
| 313 | int test1() { |
| 314 | // Verify that we perform (and check) an lvalue conversion on the operands here. |
| 315 | return (*((A**) 0)) // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}} |
| 316 | ->**(int A::**) 0; // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}} |
| 317 | } |
| 318 | |
| 319 | int test2() { |
| 320 | // Verify that we perform (and check) an lvalue conversion on the operands here. |
| 321 | // TODO: the .* should itself warn about being a dereference of null. |
| 322 | return (*((A*) 0)) |
| 323 | .**(int A::**) 0; // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}} |
| 324 | } |
| 325 | } |
| 326 | |