1 // RUN: %clang_cc1 %s -triple i686-pc-win32 -fsyntax-only -Wmicrosoft -verify -fms-extensions -fexceptions -fcxx-exceptions
2 
3 
4 // ::type_info is predeclared with forward class declartion
5 void f(const type_info &a);
6 
7 
8 // Microsoft doesn't validate exception specification.
9 namespace microsoft_exception_spec {
10 
11 void foo(); // expected-note {{previous declaration}}
12 void foo() throw(); // expected-warning {{exception specification in declaration does not match previous declaration}}
13 
14 void r6() throw(...); // expected-note {{previous declaration}}
15 void r6() throw(int); // expected-warning {{exception specification in declaration does not match previous declaration}}
16 
17 struct Base {
18   virtual void f2();
19   virtual void f3() throw(...);
20 };
21 
22 struct Derived : Base {
23   virtual void f2() throw(...);
24   virtual void f3();
25 };
26 
27 class A {
28   virtual ~A() throw();  // expected-note {{overridden virtual function is here}}
29 };
30 
31 class B : public A {
32   virtual ~B();  // expected-warning {{exception specification of overriding function is more lax than base version}}
33 };
34 
35 }
36 
37 // MSVC allows type definition in anonymous union and struct
38 struct A
39 {
40   union
41   {
42     int a;
43     struct B  // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
44     {
45       int c;
46     } d;
47 
48     union C   // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
49     {
50       int e;
51       int ee;
52     } f;
53 
54     typedef int D;  // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
55     struct F;  // expected-warning {{types declared in an anonymous union are a Microsoft extension}}
56   };
57 
58   struct
59   {
60     int a2;
61 
62     struct B2  // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
63     {
64       int c2;
65     } d2;
66 
67 	union C2  // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
68     {
69       int e2;
70       int ee2;
71     } f2;
72 
73     typedef int D2;  // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
74     struct F2;  // expected-warning {{types declared in an anonymous struct are a Microsoft extension}}
75   };
76 };
77 
78 // __stdcall handling
79 struct M {
80     int __stdcall addP();
81     float __stdcall subtractP();
82 };
83 
84 // __unaligned handling
85 typedef char __unaligned *aligned_type;
86 
87 
88 template<typename T> void h1(T (__stdcall M::* const )()) { }
89 
90 void m1() {
91   h1<int>(&M::addP);
92   h1(&M::subtractP);
93 }
94 
95 //MSVC allows forward enum declaration
96 enum ENUM; // expected-warning {{forward references to 'enum' types are a Microsoft extension}}
97 ENUM *var = 0;
98 ENUM var2 = (ENUM)3;
99 enum ENUM1* var3 = 0;// expected-warning {{forward references to 'enum' types are a Microsoft extension}}
100 
101 
102 
103 
104 void f(long long);
105 void f(int);
106 
107 int main()
108 {
109   // This is an ambiguous call in standard C++.
110   // This calls f(long long) in Microsoft mode because LL is always signed.
111   f(0xffffffffffffffffLL);
112   f(0xffffffffffffffffi64);
113 }
114 
115 // Enumeration types with a fixed underlying type.
116 const int seventeen = 17;
117 typedef int Int;
118 
119 struct X0 {
120   enum E1 : Int { SomeOtherValue } field; // expected-warning{{enumeration types with a fixed underlying type are a Microsoft extension}}
121   enum E1 : seventeen;
122 };
123 
124 enum : long long {  // expected-warning{{enumeration types with a fixed underlying type are a Microsoft extension}}
125   SomeValue = 0x100000000
126 };
127 
128 
129 class AAA {
130 __declspec(dllimport) void f(void) { }
131 void f2(void);
132 };
133 
134 __declspec(dllimport) void AAA::f2(void) { // expected-error {{dllimport attribute can be applied only to symbol}}
135 
136 }
137 
138 
139 
140 template <class T>
141 class BB {
142 public:
143    void f(int g = 10 ); // expected-note {{previous definition is here}}
144 };
145 
146 template <class T>
147 void BB<T>::f(int g = 0) { } // expected-warning {{redefinition of default argument}}
148 
149 
150 
151 extern void static_func();
152 void static_func(); // expected-note {{previous declaration is here}}
153 
154 
155 static void static_func() // expected-warning {{static declaration of 'static_func' follows non-static declaration}}
156 {
157 
158 }
159 
160 long function_prototype(int a);
161 long (*function_ptr)(int a);
162 
163 void function_to_voidptr_conv() {
164    void *a1 = function_prototype;
165    void *a2 = &function_prototype;
166    void *a3 = function_ptr;
167 }
168 
169 
170 void pointer_to_integral_type_conv(char* ptr) {
171    char ch = (char)ptr;
172    short sh = (short)ptr;
173    ch = (char)ptr;
174    sh = (short)ptr;
175 }
176 
177 
178 namespace friend_as_a_forward_decl {
179 
180 class A {
181   class Nested {
182     friend class B;
183     B* b;
184   };
185   B* b;
186 };
187 B* global_b;
188 
189 
190 void f()
191 {
192   class Local {
193     friend class Z;
194     Z* b;
195   };
196   Z* b;
197 }
198 
199 }
200 
201 struct PR11150 {
202   class X {
203     virtual void f() = 0;
204   };
205 
206   int array[__is_abstract(X)? 1 : -1];
207 };
208 
209 void f() { int __except = 0; }
210 
211