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 | |