1 // RUN: %clang_cc1 -fsyntax-only -verify -pedantic -fcxx-exceptions %s
2 // RUN: %clang_cc1 -fsyntax-only -verify -pedantic -fcxx-exceptions -std=c++98 %s
3 // RUN: %clang_cc1 -fsyntax-only -verify -pedantic -fcxx-exceptions -std=c++11 %s
4 
5 class C;
6 class C {
7 public:
8 protected:
9   typedef int A,B;
10   static int sf(), u;
11 
12   struct S {};
13   enum {}; // expected-warning{{declaration does not declare anything}}
14   int; // expected-warning {{declaration does not declare anything}}
15   int : 1, : 2;
16 
17 public:
18   void m0() {}; // ok, one extra ';' is permitted
19   void m1() {}
20   ; // ok, one extra ';' is permitted
21   void m() {
22     int l = 2;
23   };; // expected-warning{{extra ';' after member function definition}}
24 
25   template<typename T> void mt(T) { }
26   ;
27   ; // expected-warning{{extra ';' inside a class}}
28 
29   virtual int vf() const volatile = 0;
30 
31   virtual int vf0() = 0l; // expected-error {{does not look like a pure-specifier}}
32   virtual int vf1() = 1; // expected-error {{does not look like a pure-specifier}}
33   virtual int vf2() = 00; // expected-error {{does not look like a pure-specifier}}
34   virtual int vf3() = 0x0; // expected-error {{does not look like a pure-specifier}}
35   virtual int vf4() = 0.0; // expected-error {{does not look like a pure-specifier}}
36   virtual int vf5(){0}; // expected-error +{{}} expected-warning {{unused}}
37   virtual int vf5a(){0;}; // function definition, expected-warning {{unused}}
38   virtual int vf6()(0); // expected-error +{{}} expected-note +{{}}
39   virtual int vf7() = { 0 }; // expected-error {{does not look like a pure-specifier}}
40   virtual int PR45267() = \
41                         0; // ok, despite escaped newline
42 
43 private:
44   int x,f(),y,g();
45   inline int h();
46   static const int sci = 10;
47   mutable int mi;
48 };
49 void glo()
50 {
51   struct local {};
52 }
53 
54 // PR3177
55 typedef union {
56   __extension__ union {
57     int a;
58     float b;
59   } y;
60 } bug3177;
61 
62 // check that we don't consume the token after the access specifier
63 // when it's not a colon
64 class D {
65 public // expected-error{{expected ':'}}
66   int i;
67 };
68 
69 // consume the token after the access specifier if it's a semicolon
70 // that was meant to be a colon
71 class E {
72 public; // expected-error{{expected ':'}}
73   int i;
74 };
75 
76 class F {
77     int F1 { return 1; }
78 #if __cplusplus <= 199711L
79     // expected-error@-2 {{function definition does not declare parameters}}
80 #else
81     // expected-error@-4 {{expected expression}}
82     // expected-error@-5 {{expected}}
83     // expected-note@-6 {{to match this '{'}}
84     // expected-error@-7 {{expected ';' after class}}
85 #endif
86 
87     void F2 {}
88 #if __cplusplus <= 199711L
89     // expected-error@-2 {{function definition does not declare parameters}}
90 #else
91     // expected-error@-4 {{variable has incomplete type 'void'}}
92     // expected-error@-5 {{expected ';' after top level declarator}}
93 #endif
94 
95     typedef int F3() { return 0; } // expected-error{{function definition declared 'typedef'}}
96     typedef void F4() {} // expected-error{{function definition declared 'typedef'}}
97 };
98 #if __cplusplus >= 201103L
99 // expected-error@-2 {{extraneous closing brace}}
100 #endif
101 
102 namespace ctor_error {
103   class Foo {};
104   // By [class.qual]p2, this is a constructor declaration.
105   Foo::Foo (F) = F(); // expected-error{{does not match any declaration in 'ctor_error::Foo'}}
106 
107   class Ctor { // expected-note{{not complete until the closing '}'}}
108     Ctor(f)(int); // ok
109     Ctor(g(int)); // ok
110     Ctor(x[5]); // expected-error{{incomplete type}}
111 
112     Ctor(UnknownType *); // expected-error{{unknown type name 'UnknownType'}}
113     void operator+(UnknownType*); // expected-error{{unknown type name 'UnknownType'}}
114   };
115 
116   Ctor::Ctor (x) = { 0 }; // \
117     // expected-error{{qualified reference to 'Ctor' is a constructor name}}
118 
119   Ctor::Ctor(UnknownType *) {} // \
120     // expected-error{{unknown type name 'UnknownType'}}
121   void Ctor::operator+(UnknownType*) {} // \
122     // expected-error{{unknown type name 'UnknownType'}}
123 }
124 
125 namespace nns_decl {
126   struct A {
127     struct B;
128   };
129   namespace N {
130     union C;
131   }
132   struct A::B; // expected-error {{forward declaration of struct cannot have a nested name specifier}}
133   union N::C; // expected-error {{forward declaration of union cannot have a nested name specifier}}
134 }
135 
136 // PR13775: Don't assert here.
137 namespace PR13775 {
138   class bar
139   {
140    public:
141     void foo ();
142     void baz ();
143   };
144   void bar::foo ()
145   {
146     baz x(); // expected-error 3{{}}
147   }
148 }
149 
150 class pr16989 {
151   void tpl_mem(int *) {
152     return;
153     class C2 {
154       void f();
155     };
156     void C2::f() {} // expected-error{{function definition is not allowed here}}
157   };
158 };
159 
160 namespace CtorErrors {
161   struct A {
162     A(NonExistent); // expected-error {{unknown type name 'NonExistent'}}
163   };
164   struct B {
165     B(NonExistent) : n(0) {} // expected-error {{unknown type name 'NonExistent'}}
166     int n;
167   };
168   struct C {
169     C(NonExistent) try {} catch (...) {} // expected-error {{unknown type name 'NonExistent'}}
170   };
171   struct D {
172     D(NonExistent) {} // expected-error {{unknown type name 'NonExistent'}}
173   };
174 }
175 
176 namespace DtorErrors {
177   struct A { ~A(); int n; } a;
178   ~A::A() { n = 0; } // expected-error {{'~' in destructor name should be after nested name specifier}} expected-note {{previous}}
179   A::~A() {} // expected-error {{redefinition}}
180 
181   struct B { ~B(); } *b;
182   DtorErrors::~B::B() {} // expected-error {{'~' in destructor name should be after nested name specifier}}
183 
184   void f() {
185     a.~A::A(); // expected-error {{'~' in destructor name should be after nested name specifier}}
186     b->~DtorErrors::~B::B(); // expected-error {{'~' in destructor name should be after nested name specifier}}
187   }
188 
189   struct C; // expected-note {{forward decl}}
190   ~C::C() {} // expected-error {{incomplete}} expected-error {{'~' in destructor name should be after nested name specifier}}
191 
192   struct D { struct X {}; ~D() throw(X); };
193   ~D::D() throw(X) {} // expected-error {{'~' in destructor name should be after nested name specifier}}
194 
195   ~Undeclared::Undeclared() {} // expected-error {{use of undeclared identifier 'Undeclared'}} expected-error {{'~' in destructor name should be after nested name specifier}}
196   ~Undeclared:: {} // expected-error {{expected identifier}} expected-error {{'~' in destructor name should be after nested name specifier}}
197 
198   struct S {
199     // For another struct's destructor, emit the same diagnostic like for
200     // A::~A() in addition to the "~ in the wrong place" one.
201     ~A::A() {} // expected-error {{'~' in destructor name should be after nested name specifier}} expected-error {{non-friend class member '~A' cannot have a qualified name}}
202     A::~A() {} // expected-error {{non-friend class member '~A' cannot have a qualified name}}
203 
204     // An inline destructor with a redundant class name should also get the
205     // same diagnostic as S::~S.
206     ~S::S() {} // expected-error {{'~' in destructor name should be after nested name specifier}} expected-error {{extra qualification on member '~S'}}
207 
208     // This just shouldn't crash.
209     int I; // expected-note {{declared here}}
210     ~I::I() {} // expected-error {{'I' is not a class, namespace, or enumeration}} expected-error {{'~' in destructor name should be after nested name specifier}}
211   };
212 
213   struct T {};
214   T t1 = t1.T::~T<int>; // expected-error {{destructor name 'T' does not refer to a template}}
215   // Emit the same diagnostic as for the previous case, plus something about ~.
216   T t2 = t2.~T::T<int>; // expected-error {{'~' in destructor name should be after nested name specifier}} expected-error {{destructor name 'T' does not refer to a template}}
217 }
218 
219 namespace BadFriend {
220   struct A {
221     friend int : 3; // expected-error {{friends can only be classes or functions}}
222     friend void f() = 123; // expected-error {{illegal initializer}}
223     friend virtual void f(); // expected-error {{'virtual' is invalid in friend declarations}}
224     friend void f() final; // expected-error {{'final' is invalid in friend declarations}}
225     friend void f() override; // expected-error {{'override' is invalid in friend declarations}}
226   };
227 }
228 
229 class PR20760_a {
230   int a = ); // expected-error {{expected expression}}
231 #if __cplusplus <= 199711L
232   // expected-warning@-2 {{default member initializer for non-static data member is a C++11 extension}}
233 #endif
234 
235   int b = }; // expected-error {{expected expression}}
236 #if __cplusplus <= 199711L
237   // expected-warning@-2 {{default member initializer for non-static data member is a C++11 extension}}
238 #endif
239 
240   int c = ]; // expected-error {{expected expression}}
241 #if __cplusplus <= 199711L
242   // expected-warning@-2 {{default member initializer for non-static data member is a C++11 extension}}
243 #endif
244 
245 };
246 class PR20760_b {
247   int d = d); // expected-error {{expected ';'}}
248 #if __cplusplus <= 199711L
249   // expected-warning@-2 {{default member initializer for non-static data member is a C++11 extension}}
250 #endif
251 
252   int e = d]; // expected-error {{expected ';'}}
253 #if __cplusplus <= 199711L
254   // expected-warning@-2 {{default member initializer for non-static data member is a C++11 extension}}
255 #endif
256 
257   int f = d // expected-error {{expected ';'}}
258 #if __cplusplus <= 199711L
259   // expected-warning@-2 {{default member initializer for non-static data member is a C++11 extension}}
260 #endif
261 
262 };
263 
264 namespace PR20887 {
265 class X1 { a::operator=; }; // expected-error {{undeclared identifier 'a'}}
266 class X2 { a::a; }; // expected-error {{undeclared identifier 'a'}}
267 }
268 
269 class BadExceptionSpec {
270   void f() throw(int; // expected-error {{expected ')'}} expected-note {{to match}}
271   void g() throw(
272       int(
273           ; // expected-error {{unexpected ';' before ')'}}
274           ));
275 };
276 
277 namespace PR41192 {
278 extern struct A a;
279 struct A {} ::PR41192::a; // ok, no missing ';' here  expected-warning {{extra qualification}}
280 
281 #if __cplusplus >= 201103L
282 struct C;
283 struct D { static C c; };
284 struct C {} decltype(D())::c; // expected-error {{'decltype' cannot be used to name a declaration}}
285 #endif
286 }
287 
288 namespace ArrayMemberAccess {
289   struct A {
290     int x;
291     template<typename T> int f() const;
292   };
293   void f(const A (&a)[]) {
294     // OK: not a template-id.
295     bool cond = a->x < 10 && a->x > 0;
296     // OK: a template-id.
297     a->f<int>();
298   }
299 }
300 
301 namespace UndeclaredBaseTemplate {
302   template<class> struct imp;
303   template<class T> struct is_member_function_pointer : undeclared<imp<T>::member> {}; // expected-error {{unknown template name 'undeclared'}}
304 }
305 
306 // PR11109 must appear at the end of the source file
307 class pr11109r3 { // expected-note{{to match this '{'}}
308   public // expected-error{{expected ':'}} expected-error{{expected '}'}} expected-error{{expected ';' after class}}
309