| 1 | // RUN: %clang_cc1 %s -triple i686-pc-win32 -fsyntax-only -std=c++11 -Wmicrosoft -verify -fms-compatibility -fexceptions -fcxx-exceptions -fms-compatibility-version=19.00 |
| 2 | // RUN: %clang_cc1 %s -triple i686-pc-win32 -fsyntax-only -std=c++11 -Wmicrosoft -verify -fms-compatibility -fexceptions -fcxx-exceptions -fms-compatibility-version=18.00 |
| 3 | |
| 4 | #if defined(_HAS_CHAR16_T_LANGUAGE_SUPPORT) && _HAS_CHAR16_T_LANGUAGE_SUPPORT |
| 5 | char16_t x; |
| 6 | char32_t y; |
| 7 | #else |
| 8 | typedef unsigned short char16_t; |
| 9 | typedef unsigned int char32_t; |
| 10 | #endif |
| 11 | |
| 12 | _Atomic(int) z; |
| 13 | template <typename T> |
| 14 | struct _Atomic { |
| 15 | _Atomic() {} |
| 16 | ~_Atomic() {} |
| 17 | }; |
| 18 | template <typename T> |
| 19 | struct atomic : _Atomic<T> { |
| 20 | typedef _Atomic<T> TheBase; |
| 21 | TheBase field; |
| 22 | }; |
| 23 | _Atomic(int) alpha; |
| 24 | |
| 25 | typename decltype(3) a; // expected-warning {{expected a qualified name after 'typename'}} |
| 26 | |
| 27 | namespace ms_conversion_rules { |
| 28 | |
| 29 | void f(float a); |
| 30 | void f(int a); |
| 31 | |
| 32 | void test() |
| 33 | { |
| 34 | long a = 0; |
| 35 | f((long)0); |
| 36 | f(a); |
| 37 | } |
| 38 | |
| 39 | } |
| 40 | |
| 41 | |
| 42 | namespace ms_predefined_types { |
| 43 | // ::type_info is a built-in forward class declaration. |
| 44 | void f(const type_info &a); |
| 45 | void f(size_t); |
| 46 | } |
| 47 | |
| 48 | |
| 49 | namespace ms_protected_scope { |
| 50 | struct C { C(); }; |
| 51 | |
| 52 | int jump_over_variable_init(bool b) { |
| 53 | if (b) |
| 54 | goto foo; // expected-warning {{jump from this goto statement to its label is a Microsoft extension}} |
| 55 | C c; // expected-note {{jump bypasses variable initialization}} |
| 56 | foo: |
| 57 | return 1; |
| 58 | } |
| 59 | |
| 60 | struct Y { |
| 61 | ~Y(); |
| 62 | }; |
| 63 | |
| 64 | void jump_over_var_with_dtor() { |
| 65 | goto end; // expected-warning{{jump from this goto statement to its label is a Microsoft extension}} |
| 66 | Y y; // expected-note {{jump bypasses variable with a non-trivial destructor}} |
| 67 | end: |
| 68 | ; |
| 69 | } |
| 70 | |
| 71 | void jump_over_variable_case(int c) { |
| 72 | switch (c) { |
| 73 | case 0: |
| 74 | int x = 56; // expected-note {{jump bypasses variable initialization}} |
| 75 | case 1: // expected-error {{cannot jump}} |
| 76 | x = 10; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | |
| 81 | void exception_jump() { |
| 82 | goto l2; // expected-error {{cannot jump}} |
| 83 | try { // expected-note {{jump bypasses initialization of try block}} |
| 84 | l2: ; |
| 85 | } catch(int) { |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | int jump_over_indirect_goto() { |
| 90 | static void *ps[] = { &&a0 }; |
| 91 | goto *&&a0; // expected-warning {{jump from this goto statement to its label is a Microsoft extension}} |
| 92 | int a = 3; // expected-note {{jump bypasses variable initialization}} |
| 93 | a0: |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | } |
| 98 | |
| 99 | namespace PR11826 { |
| 100 | struct pair { |
| 101 | pair(int v) { } |
| 102 | #if _MSC_VER >= 1900 |
| 103 | void operator=(pair&& rhs) { } // expected-note {{copy constructor is implicitly deleted because 'pair' has a user-declared move assignment operator}} |
| 104 | #else |
| 105 | void operator=(pair&& rhs) { } |
| 106 | #endif |
| 107 | }; |
| 108 | void f() { |
| 109 | pair p0(3); |
| 110 | #if _MSC_VER >= 1900 |
| 111 | pair p = p0; // expected-error {{call to implicitly-deleted copy constructor of 'PR11826::pair'}} |
| 112 | #else |
| 113 | pair p = p0; |
| 114 | #endif |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | namespace PR11826_for_symmetry { |
| 119 | struct pair { |
| 120 | pair(int v) { } |
| 121 | #if _MSC_VER >= 1900 |
| 122 | pair(pair&& rhs) { } // expected-note {{copy assignment operator is implicitly deleted because 'pair' has a user-declared move constructor}} |
| 123 | #else |
| 124 | pair(pair&& rhs) { } |
| 125 | #endif |
| 126 | }; |
| 127 | void f() { |
| 128 | pair p0(3); |
| 129 | pair p(4); |
| 130 | #if _MSC_VER >= 1900 |
| 131 | p = p0; // expected-error {{object of type 'PR11826_for_symmetry::pair' cannot be assigned because its copy assignment operator is implicitly deleted}} |
| 132 | #else |
| 133 | p = p0; |
| 134 | #endif |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | namespace ms_using_declaration_bug { |
| 139 | |
| 140 | class A { |
| 141 | public: |
| 142 | int f(); |
| 143 | }; |
| 144 | |
| 145 | class B : public A { |
| 146 | private: |
| 147 | using A::f; |
| 148 | void g() { |
| 149 | f(); // no diagnostic |
| 150 | } |
| 151 | }; |
| 152 | |
| 153 | class C : public B { |
| 154 | private: |
| 155 | using B::f; // expected-warning {{using declaration referring to inaccessible member 'ms_using_declaration_bug::B::f' (which refers to accessible member 'ms_using_declaration_bug::A::f') is a Microsoft compatibility extension}} |
| 156 | }; |
| 157 | |
| 158 | } |
| 159 | |
| 160 | namespace using_tag_redeclaration |
| 161 | { |
| 162 | struct S; |
| 163 | namespace N { |
| 164 | using ::using_tag_redeclaration::S; |
| 165 | struct S {}; // expected-note {{previous definition is here}} |
| 166 | } |
| 167 | void f() { |
| 168 | N::S s1; |
| 169 | S s2; |
| 170 | } |
| 171 | void g() { |
| 172 | struct S; // expected-note {{forward declaration of 'S'}} |
| 173 | S s3; // expected-error {{variable has incomplete type 'S'}} |
| 174 | } |
| 175 | void h() { |
| 176 | using ::using_tag_redeclaration::S; |
| 177 | struct S {}; // expected-error {{redefinition of 'S'}} |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | |
| 182 | namespace MissingTypename { |
| 183 | |
| 184 | template<class T> class A { |
| 185 | public: |
| 186 | typedef int TYPE; |
| 187 | }; |
| 188 | |
| 189 | template<class T> class B { |
| 190 | public: |
| 191 | typedef int TYPE; |
| 192 | }; |
| 193 | |
| 194 | |
| 195 | template<class T, class U> |
| 196 | class C : private A<T>, public B<U> { |
| 197 | public: |
| 198 | typedef A<T> Base1; |
| 199 | typedef B<U> Base2; |
| 200 | typedef A<U> Base3; |
| 201 | |
| 202 | A<T>::TYPE a1; // expected-warning {{missing 'typename' prior to dependent type name}} |
| 203 | Base1::TYPE a2; // expected-warning {{missing 'typename' prior to dependent type name}} |
| 204 | |
| 205 | B<U>::TYPE a3; // expected-warning {{missing 'typename' prior to dependent type name}} |
| 206 | Base2::TYPE a4; // expected-warning {{missing 'typename' prior to dependent type name}} |
| 207 | |
| 208 | A<U>::TYPE a5; // expected-error {{missing 'typename' prior to dependent type name}} |
| 209 | Base3::TYPE a6; // expected-error {{missing 'typename' prior to dependent type name}} |
| 210 | }; |
| 211 | |
| 212 | class D { |
| 213 | public: |
| 214 | typedef int Type; |
| 215 | }; |
| 216 | |
| 217 | template <class T> |
| 218 | void function_missing_typename(const T::Type param)// expected-warning {{missing 'typename' prior to dependent type name}} |
| 219 | { |
| 220 | const T::Type var = 2; // expected-warning {{missing 'typename' prior to dependent type name}} |
| 221 | } |
| 222 | |
| 223 | template void function_missing_typename<D>(const D::Type param); |
| 224 | |
| 225 | } |
| 226 | |
| 227 | //MSVC allows forward enum declaration |
| 228 | enum ENUM; // expected-warning {{forward references to 'enum' types are a Microsoft extension}} |
| 229 | ENUM *var = 0; |
| 230 | ENUM var2 = (ENUM)3; |
| 231 | enum ENUM1* var3 = 0;// expected-warning {{forward references to 'enum' types are a Microsoft extension}} |
| 232 | |
| 233 | enum ENUM1 { kA }; |
| 234 | enum ENUM1; // This way round is fine. |
| 235 | |
| 236 | enum ENUM2 { |
| 237 | ENUM2_a = (enum ENUM2) 4, |
| 238 | ENUM2_b = 0x9FFFFFFF, // expected-warning {{enumerator value is not representable in the underlying type 'int'}} |
| 239 | ENUM2_c = 0x100000000 // expected-warning {{enumerator value is not representable in the underlying type 'int'}} |
| 240 | }; |
| 241 | |
| 242 | namespace NsEnumForwardDecl { |
| 243 | enum E *p; // expected-warning {{forward references to 'enum' types are a Microsoft extension}} |
| 244 | extern E e; |
| 245 | } |
| 246 | // Clang used to complain that NsEnumForwardDecl::E was undeclared below. |
| 247 | NsEnumForwardDecl::E NsEnumForwardDecl_e; |
| 248 | namespace NsEnumForwardDecl { |
| 249 | extern E e; |
| 250 | } |
| 251 | |
| 252 | namespace PR11791 { |
| 253 | template<class _Ty> |
| 254 | void del(_Ty *_Ptr) { |
| 255 | _Ptr->~_Ty(); // expected-warning {{pseudo-destructors on type void are a Microsoft extension}} |
| 256 | } |
| 257 | |
| 258 | void f() { |
| 259 | int* a = 0; |
| 260 | del((void*)a); // expected-note {{in instantiation of function template specialization}} |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | namespace IntToNullPtrConv { |
| 265 | struct Foo { |
| 266 | static const int ZERO = 0; |
| 267 | typedef void (Foo::*MemberFcnPtr)(); |
| 268 | }; |
| 269 | |
| 270 | struct Bar { |
| 271 | const Foo::MemberFcnPtr pB; |
| 272 | }; |
| 273 | |
| 274 | Bar g_bar = { (Foo::MemberFcnPtr)Foo::ZERO }; |
| 275 | |
| 276 | template<int N> int *get_n() { return N; } // expected-warning {{expression which evaluates to zero treated as a null pointer constant}} |
| 277 | int *g_nullptr = get_n<0>(); // expected-note {{in instantiation of function template specialization}} |
| 278 | } |
| 279 | |
| 280 | namespace signed_hex_i64 { |
| 281 | void f(long long); |
| 282 | void f(int); |
| 283 | void g() { |
| 284 | // This is an ambiguous call in standard C++. |
| 285 | // This calls f(long long) in Microsoft mode because LL is always signed. |
| 286 | f(0xffffffffffffffffLL); |
| 287 | f(0xffffffffffffffffi64); |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | typedef void (*FnPtrTy)(); |
| 292 | void (*PR23733_1)() = static_cast<FnPtrTy>((void *)0); // expected-warning {{static_cast between pointer-to-function and pointer-to-object is a Microsoft extension}} |
| 293 | void (*PR23733_2)() = FnPtrTy((void *)0); |
| 294 | void (*PR23733_3)() = (FnPtrTy)((void *)0); |
| 295 | void (*PR23733_4)() = reinterpret_cast<FnPtrTy>((void *)0); |
| 296 | |
| 297 | long function_prototype(int a); |
| 298 | long (*function_ptr)(int a); |
| 299 | |
| 300 | void function_to_voidptr_conv() { |
| 301 | void *a1 = function_prototype; // expected-warning {{implicit conversion between pointer-to-function and pointer-to-object is a Microsoft extension}} |
| 302 | void *a2 = &function_prototype; // expected-warning {{implicit conversion between pointer-to-function and pointer-to-object is a Microsoft extension}} |
| 303 | void *a3 = function_ptr; // expected-warning {{implicit conversion between pointer-to-function and pointer-to-object is a Microsoft extension}} |
| 304 | } |
| 305 | |
| 306 | namespace member_lookup { |
| 307 | |
| 308 | template<typename T> |
| 309 | struct ConfuseLookup { |
| 310 | T* m_val; |
| 311 | struct m_val { |
| 312 | static size_t ms_test; |
| 313 | }; |
| 314 | }; |
| 315 | |
| 316 | // Microsoft mode allows explicit constructor calls |
| 317 | // This could confuse name lookup in cases such as this |
| 318 | template<typename T> |
| 319 | size_t ConfuseLookup<T>::m_val::ms_test |
| 320 | = size_t(&(char&)(reinterpret_cast<ConfuseLookup<T>*>(0)->m_val)); |
| 321 | |
| 322 | void instantiate() { ConfuseLookup<int>::m_val::ms_test = 1; } |
| 323 | } |
| 324 | |
| 325 | |