1 // RUN: %clang_cc1 %s -triple i686-pc-win32 -fsyntax-only -Wmicrosoft -Wc++11-extensions -Wno-long-long -verify -fms-extensions -fexceptions -fcxx-exceptions
2
3
4 // Microsoft doesn't validate exception specification.
5 namespace microsoft_exception_spec {
6
7 void foo(); // expected-note {{previous declaration}}
8 void foo() throw(); // expected-warning {{exception specification in declaration does not match previous declaration}}
9
10 void r6() throw(...); // expected-note {{previous declaration}}
11 void r6() throw(int); // expected-warning {{exception specification in declaration does not match previous declaration}}
12
13 struct Base {
14 virtual void f2();
15 virtual void f3() throw(...);
16 };
17
18 struct Derived : Base {
19 virtual void f2() throw(...);
20 virtual void f3();
21 };
22
23 class A {
24 virtual ~A() throw(); // expected-note {{overridden virtual function is here}}
25 };
26
27 class B : public A {
28 virtual ~B(); // expected-warning {{exception specification of overriding function is more lax than base version}}
29 };
30
31 }
32
33 // MSVC allows type definition in anonymous union and struct
34 struct A
35 {
36 union
37 {
38 int a;
39 struct B // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
40 {
41 int c;
42 } d;
43
44 union C // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
45 {
46 int e;
47 int ee;
48 } f;
49
50 typedef int D; // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
51 struct F; // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
52 };
53
54 struct
55 {
56 int a2;
57
58 struct B2 // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
59 {
60 int c2;
61 } d2;
62
63 union C2 // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
64 {
65 int e2;
66 int ee2;
67 } f2;
68
69 typedef int D2; // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
70 struct F2; // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
71 };
72 };
73
74 // __stdcall handling
75 struct M {
76 int __stdcall addP();
77 float __stdcall subtractP();
78 };
79
80 // __unaligned handling
81 typedef char __unaligned *aligned_type;
82 typedef struct UnalignedTag { int f; } __unaligned *aligned_type2;
83
84
h1(T (__stdcall M::* const)())85 template<typename T> void h1(T (__stdcall M::* const )()) { }
86
m1()87 void m1() {
88 h1<int>(&M::addP);
89 h1(&M::subtractP);
90 }
91
92
93
94
95
96 void f(long long);
97 void f(int);
98
main()99 int main()
100 {
101 // This is an ambiguous call in standard C++.
102 // This calls f(long long) in Microsoft mode because LL is always signed.
103 f(0xffffffffffffffffLL);
104 f(0xffffffffffffffffi64);
105 }
106
107 // Enumeration types with a fixed underlying type.
108 const int seventeen = 17;
109 typedef int Int;
110
111 struct X0 {
112 enum E1 : Int { SomeOtherValue } field; // expected-warning{{enumeration types with a fixed underlying type are a C++11 extension}}
113 enum E1 : seventeen;
114 };
115
116 enum : long long { // expected-warning{{enumeration types with a fixed underlying type are a C++11 extension}}
117 SomeValue = 0x100000000
118 };
119
120
121 class AAA {
f(void)122 __declspec(dllimport) void f(void) { }
123 void f2(void); // expected-note{{previous declaration is here}}
124 };
125
f2(void)126 __declspec(dllimport) void AAA::f2(void) { // expected-error{{dllimport cannot be applied to non-inline function definition}}
127 // expected-error@-1{{redeclaration of 'AAA::f2' cannot add 'dllimport' attribute}}
128
129 }
130
131
132
133 template <class T>
134 class BB {
135 public:
136 void f(int g = 10 ); // expected-note {{previous definition is here}}
137 };
138
139 template <class T>
f(int g=0)140 void BB<T>::f(int g = 0) { } // expected-warning {{redefinition of default argument}}
141
142
143
144 extern void static_func();
145 void static_func(); // expected-note {{previous declaration is here}}
146
147
static_func()148 static void static_func() // expected-warning {{redeclaring non-static 'static_func' as static is a Microsoft extension}}
149 {
150
151 }
152
153 extern const int static_var; // expected-note {{previous declaration is here}}
154 static const int static_var = 3; // expected-warning {{redeclaring non-static 'static_var' as static is a Microsoft extension}}
155
pointer_to_integral_type_conv(char * ptr)156 void pointer_to_integral_type_conv(char* ptr) {
157 char ch = (char)ptr;
158 short sh = (short)ptr;
159 ch = (char)ptr;
160 sh = (short)ptr;
161
162 // These are valid C++.
163 bool b = (bool)ptr;
164 b = static_cast<bool>(ptr);
165
166 // This is bad.
167 b = reinterpret_cast<bool>(ptr); // expected-error {{cast from pointer to smaller type 'bool' loses information}}
168 }
169
170 struct PR11150 {
171 class X {
172 virtual void f() = 0;
173 };
174
175 int array[__is_abstract(X)? 1 : -1];
176 };
177
f()178 void f() { int __except = 0; }
179
180 void ::f(); // expected-warning{{extra qualification on member 'f'}}
181
182 class C {
183 C::C(); // expected-warning{{extra qualification on member 'C'}}
184 };
185
186 struct StructWithProperty {
187 __declspec(property(get=GetV)) int V1;
188 __declspec(property(put=SetV)) int V2;
189 __declspec(property(get=GetV, put=SetV_NotExist)) int V3;
190 __declspec(property(get=GetV_NotExist, put=SetV)) int V4;
191 __declspec(property(get=GetV, put=SetV)) int V5;
192
GetVStructWithProperty193 int GetV() { return 123; }
SetVStructWithProperty194 void SetV(int i) {}
195 };
TestProperty()196 void TestProperty() {
197 StructWithProperty sp;
198 int i = sp.V2; // expected-error{{no getter defined for property 'V2'}}
199 sp.V1 = 12; // expected-error{{no setter defined for property 'V1'}}
200 int j = sp.V4; // expected-error{{no member named 'GetV_NotExist' in 'StructWithProperty'}} expected-error{{cannot find suitable getter for property 'V4'}}
201 sp.V3 = 14; // expected-error{{no member named 'SetV_NotExist' in 'StructWithProperty'}} expected-error{{cannot find suitable setter for property 'V3'}}
202 int k = sp.V5;
203 sp.V5 = k++;
204 }
205
206 /* 4 tests for PseudoObject, begin */
207 struct SP1
208 {
operator ()SP1209 bool operator()() { return true; }
210 };
211 struct SP2
212 {
213 __declspec(property(get=GetV)) SP1 V;
GetVSP2214 SP1 GetV() { return SP1(); }
215 };
TestSP2()216 void TestSP2() {
217 SP2 sp2;
218 bool b = sp2.V();
219 }
220
221 struct SP3 {
222 template <class T>
fSP3223 void f(T t) {}
224 };
225 template <class T>
226 struct SP4
227 {
228 __declspec(property(get=GetV)) int V;
GetVSP4229 int GetV() { return 123; }
fSP4230 void f() { SP3 s2; s2.f(V); }
231 };
TestSP4()232 void TestSP4() {
233 SP4<int> s;
234 s.f();
235 }
236
237 template <class T>
238 struct SP5
239 {
240 __declspec(property(get=GetV)) T V;
GetVSP5241 int GetV() { return 123; }
fSP5242 void f() { int *p = new int[V]; }
243 };
244
245 template <class T>
246 struct SP6
247 {
248 public:
249 __declspec(property(get=GetV)) T V;
GetVSP6250 T GetV() { return 123; }
fSP6251 void f() { int t = V; }
252 };
TestSP6()253 void TestSP6() {
254 SP6<int> c;
255 c.f();
256 }
257 /* 4 tests for PseudoObject, end */
258
259 // Property access: explicit, implicit, with Qualifier
260 struct SP7 {
261 __declspec(property(get=GetV, put=SetV)) int V;
GetVSP7262 int GetV() { return 123; }
SetVSP7263 void SetV(int v) {}
264
ImplicitAccessSP7265 void ImplicitAccess() { int i = V; V = i; }
ExplicitAccessSP7266 void ExplicitAccess() { int i = this->V; this->V = i; }
267 };
268 struct SP8: public SP7 {
AccessWithQualifierSP8269 void AccessWithQualifier() { int i = SP7::V; SP7::V = i; }
270 };
271
272 // Property usage
273 template <class T>
274 struct SP9 {
275 __declspec(property(get=GetV, put=SetV)) T V;
GetVSP9276 T GetV() { return 0; }
SetVSP9277 void SetV(T v) {}
fSP9278 bool f() { V = this->V; return V < this->V; }
gSP9279 void g() { V++; }
hSP9280 void h() { V*=2; }
281 };
282 struct SP10 {
SP10SP10283 SP10(int v) {}
operator <SP10284 bool operator<(const SP10& v) { return true; }
operator *SP10285 SP10 operator*(int v) { return *this; }
operator +SP10286 SP10 operator+(int v) { return *this; }
operator =SP10287 SP10& operator=(const SP10& v) { return *this; }
288 };
TestSP9()289 void TestSP9() {
290 SP9<int> c;
291 int i = c.V; // Decl initializer
292 i = c.V; // Binary op operand
293 c.SetV(c.V); // CallExpr arg
294 int *p = new int[c.V + 1]; // Array size
295 p[c.V] = 1; // Array index
296
297 c.V = 123; // Setter
298
299 c.V++; // Unary op operand
300 c.V *= 2; // Unary op operand
301
302 SP9<int*> c2;
303 c2.V[0] = 123; // Array
304
305 SP9<SP10> c3;
306 c3.f(); // Overloaded binary op operand
307 c3.g(); // Overloaded incdec op operand
308 c3.h(); // Overloaded unary op operand
309 }
310
311 union u {
312 int *i1;
313 int &i2; // expected-warning {{union member 'i2' has reference type 'int &', which is a Microsoft extension}}
314 };
315
316 // Property getter using reference.
317 struct SP11 {
318 __declspec(property(get=GetV)) int V;
319 int _v;
GetVSP11320 int& GetV() { return _v; }
321 void UseV();
TakePtrSP11322 void TakePtr(int *) {}
TakeRefSP11323 void TakeRef(int &) {}
TakeValSP11324 void TakeVal(int) {}
325 };
326
UseV()327 void SP11::UseV() {
328 TakePtr(&V);
329 TakeRef(V);
330 TakeVal(V);
331 }
332
333 struct StructWithUnnamedMember {
334 __declspec(property(get=GetV)) int : 10; // expected-error {{anonymous property is not supported}}
335 };
336
337 struct MSPropertyClass {
getMSPropertyClass338 int get() { return 42; }
339 int __declspec(property(get = get)) n;
340 };
341
f(MSPropertyClass & x)342 int *f(MSPropertyClass &x) {
343 return &x.n; // expected-error {{address of property expression requested}}
344 }
g()345 int MSPropertyClass::*g() {
346 return &MSPropertyClass::n; // expected-error {{address of property expression requested}}
347 }
348
349 namespace rdar14250378 {
350 class Bar {};
351
352 namespace NyNamespace {
353 class Foo {
354 public:
355 Bar* EnsureBar();
356 };
357
358 class Baz : public Foo {
359 public:
360 friend class Bar;
361 };
362
EnsureBar()363 Bar* Foo::EnsureBar() {
364 return 0;
365 }
366 }
367 }
368
369 // expected-error@+1 {{'sealed' keyword not permitted with interface types}}
370 __interface InterfaceWithSealed sealed {
371 };
372
373 struct SomeBase {
374 virtual void OverrideMe();
375
376 // expected-note@+2 {{overridden virtual function is here}}
377 // expected-warning@+1 {{'sealed' keyword is a Microsoft extension}}
378 virtual void SealedFunction() sealed; // expected-note {{overridden virtual function is here}}
379 };
380
381 // expected-note@+2 {{'SealedType' declared here}}
382 // expected-warning@+1 {{'sealed' keyword is a Microsoft extension}}
383 struct SealedType sealed : SomeBase {
384 // expected-error@+2 {{declaration of 'SealedFunction' overrides a 'sealed' function}}
385 // FIXME. warning can be suppressed if we're also issuing error for overriding a 'final' function.
386 virtual void SealedFunction(); // expected-warning {{'SealedFunction' overrides a member function but is not marked 'override'}}
387
388 // expected-warning@+1 {{'override' keyword is a C++11 extension}}
389 virtual void OverrideMe() override;
390 };
391
392 // expected-error@+1 {{base 'SealedType' is marked 'sealed'}}
393 struct InheritFromSealed : SealedType {};
394
AfterClassBody()395 void AfterClassBody() {
396 // expected-warning@+1 {{attribute 'deprecated' is ignored, place it after "struct" to apply attribute to type declaration}}
397 struct D {} __declspec(deprecated);
398
399 struct __declspec(align(4)) S {} __declspec(align(8)) s1;
400 S s2;
401 _Static_assert(__alignof(S) == 4, "");
402 _Static_assert(__alignof(s1) == 8, "");
403 _Static_assert(__alignof(s2) == 4, "");
404 }
405
406 namespace PR24246 {
407 template <typename TX> struct A {
408 template <bool> struct largest_type_select;
409 // expected-warning@+1 {{explicit specialization of 'largest_type_select' within class scope is a Microsoft extension}}
410 template <> struct largest_type_select<false> {
411 blah x; // expected-error {{unknown type name 'blah'}}
412 };
413 };
414 }
415
416 namespace PR25265 {
417 struct S {
418 int fn() throw(); // expected-note {{previous declaration is here}}
419 };
420
fn()421 int S::fn() { return 0; } // expected-warning {{is missing exception specification}}
422 }
423