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      1 // RUN: %clang_cc1 -fsyntax-only -verify -pedantic -fcxx-exceptions %s
      2 class C;
      3 class C {
      4 public:
      5 protected:
      6   typedef int A,B;
      7   static int sf(), u;
      8 
      9   struct S {};
     10   enum {}; // expected-warning{{declaration does not declare anything}}
     11   int; // expected-warning {{declaration does not declare anything}}
     12   int : 1, : 2;
     13 
     14 public:
     15   void m0() {}; // ok, one extra ';' is permitted
     16   void m1() {}
     17   ; // ok, one extra ';' is permitted
     18   void m() {
     19     int l = 2;
     20   };; // expected-warning{{extra ';' after member function definition}}
     21 
     22   template<typename T> void mt(T) { }
     23   ;
     24   ; // expected-warning{{extra ';' inside a class}}
     25 
     26   virtual int vf() const volatile = 0;
     27 
     28 private:
     29   int x,f(),y,g();
     30   inline int h();
     31   static const int sci = 10;
     32   mutable int mi;
     33 };
     34 void glo()
     35 {
     36   struct local {};
     37 }
     38 
     39 // PR3177
     40 typedef union {
     41   __extension__ union {
     42     int a;
     43     float b;
     44   } y;
     45 } bug3177;
     46 
     47 // check that we don't consume the token after the access specifier
     48 // when it's not a colon
     49 class D {
     50 public // expected-error{{expected ':'}}
     51   int i;
     52 };
     53 
     54 // consume the token after the access specifier if it's a semicolon
     55 // that was meant to be a colon
     56 class E {
     57 public; // expected-error{{expected ':'}}
     58   int i;
     59 };
     60 
     61 class F {
     62     int F1 { return 1; } // expected-error{{function definition does not declare parameters}}
     63     void F2 {} // expected-error{{function definition does not declare parameters}}
     64     typedef int F3() { return 0; } // expected-error{{function definition declared 'typedef'}}
     65     typedef void F4() {} // expected-error{{function definition declared 'typedef'}}
     66 };
     67 
     68 namespace ctor_error {
     69   class Foo {};
     70   // By [class.qual]p2, this is a constructor declaration.
     71   Foo::Foo (F) = F(); // expected-error{{does not match any declaration in 'ctor_error::Foo'}}
     72 
     73   class Ctor { // expected-note{{not complete until the closing '}'}}
     74     Ctor(f)(int); // ok
     75     Ctor(g(int)); // ok
     76     Ctor(x[5]); // expected-error{{incomplete type}}
     77 
     78     Ctor(UnknownType *); // expected-error{{unknown type name 'UnknownType'}}
     79     void operator+(UnknownType*); // expected-error{{unknown type name 'UnknownType'}}
     80   };
     81 
     82   Ctor::Ctor (x) = { 0 }; // \
     83     // expected-error{{qualified reference to 'Ctor' is a constructor name}}
     84 
     85   Ctor::Ctor(UnknownType *) {} // \
     86     // expected-error{{unknown type name 'UnknownType'}}
     87   void Ctor::operator+(UnknownType*) {} // \
     88     // expected-error{{unknown type name 'UnknownType'}}
     89 }
     90 
     91 namespace nns_decl {
     92   struct A {
     93     struct B;
     94   };
     95   namespace N {
     96     union C;
     97   }
     98   struct A::B; // expected-error {{forward declaration of struct cannot have a nested name specifier}}
     99   union N::C; // expected-error {{forward declaration of union cannot have a nested name specifier}}
    100 }
    101 
    102 // PR13775: Don't assert here.
    103 namespace PR13775 {
    104   class bar
    105   {
    106    public:
    107     void foo ();
    108     void baz ();
    109   };
    110   void bar::foo ()
    111   {
    112     baz x(); // expected-error 3{{}}
    113   }
    114 }
    115 
    116 class pr16989 {
    117   void tpl_mem(int *) {
    118     return;
    119     class C2 {
    120       void f();
    121     };
    122     void C2::f() {} // expected-error{{function definition is not allowed here}}
    123   };
    124 };
    125 
    126 namespace CtorErrors {
    127   struct A {
    128     A(NonExistent); // expected-error {{unknown type name 'NonExistent'}}
    129   };
    130   struct B {
    131     B(NonExistent) : n(0) {} // expected-error {{unknown type name 'NonExistent'}}
    132     int n;
    133   };
    134   struct C {
    135     C(NonExistent) try {} catch (...) {} // expected-error {{unknown type name 'NonExistent'}}
    136   };
    137   struct D {
    138     D(NonExistent) {} // expected-error {{unknown type name 'NonExistent'}}
    139   };
    140 }
    141 
    142 namespace DtorErrors {
    143   struct A { ~A(); int n; } a;
    144   ~A::A() { n = 0; } // expected-error {{'~' in destructor name should be after nested name specifier}} expected-note {{previous}}
    145   A::~A() {} // expected-error {{redefinition}}
    146 
    147   struct B { ~B(); } *b;
    148   DtorErrors::~B::B() {} // expected-error {{'~' in destructor name should be after nested name specifier}}
    149 
    150   void f() {
    151     a.~A::A(); // expected-error {{'~' in destructor name should be after nested name specifier}}
    152     b->~DtorErrors::~B::B(); // expected-error {{'~' in destructor name should be after nested name specifier}}
    153   }
    154 
    155   struct C; // expected-note {{forward decl}}
    156   ~C::C() {} // expected-error {{incomplete}} expected-error {{'~' in destructor name should be after nested name specifier}}
    157 
    158   struct D { struct X {}; ~D() throw(X); };
    159   ~D::D() throw(X) {} // expected-error {{'~' in destructor name should be after nested name specifier}}
    160 
    161   ~Undeclared::Undeclared() {} // expected-error {{use of undeclared identifier 'Undeclared'}} expected-error {{'~' in destructor name should be after nested name specifier}}
    162   ~Undeclared:: {} // expected-error {{expected identifier}} expected-error {{'~' in destructor name should be after nested name specifier}}
    163 
    164   struct S {
    165     // For another struct's destructor, emit the same diagnostic like for
    166     // A::~A() in addition to the "~ in the wrong place" one.
    167     ~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}}
    168     A::~A() {} // expected-error {{non-friend class member '~A' cannot have a qualified name}}
    169 
    170     // An inline destructor with a redundant class name should also get the
    171     // same diagnostic as S::~S.
    172     ~S::S() {} // expected-error {{'~' in destructor name should be after nested name specifier}} expected-error {{extra qualification on member '~S'}}
    173 
    174     // This just shouldn't crash.
    175     int I; // expected-note {{declared here}}
    176     ~I::I() {} // expected-error {{'I' is not a class, namespace, or enumeration}} expected-error {{'~' in destructor name should be after nested name specifier}}
    177   };
    178 
    179   struct T {};
    180   T t1 = t1.T::~T<int>; // expected-error {{destructor name 'T' does not refer to a template}} expected-error {{expected '(' for function-style cast or type construction}} expected-error {{expected expression}}
    181   // Emit the same diagnostic as for the previous case, plus something about ~.
    182   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}} expected-error {{expected '(' for function-style cast or type construction}} expected-error {{expected expression}}
    183 }
    184 
    185 namespace BadFriend {
    186   struct A {
    187     friend int : 3; // expected-error {{friends can only be classes or functions}}
    188     friend void f() = 123; // expected-error {{illegal initializer}}
    189     friend virtual void f(); // expected-error {{'virtual' is invalid in friend declarations}}
    190     friend void f() final; // expected-error {{'final' is invalid in friend declarations}}
    191     friend void f() override; // expected-error {{'override' is invalid in friend declarations}}
    192   };
    193 }
    194 
    195 class PR20760_a {
    196   int a = ); // expected-warning {{extension}} expected-error {{expected expression}}
    197   int b = }; // expected-warning {{extension}} expected-error {{expected expression}}
    198   int c = ]; // expected-warning {{extension}} expected-error {{expected expression}}
    199 };
    200 class PR20760_b {
    201   int d = d); // expected-warning {{extension}} expected-error {{expected ';'}}
    202   int e = d]; // expected-warning {{extension}} expected-error {{expected ';'}}
    203   int f = d // expected-warning {{extension}} expected-error {{expected ';'}}
    204 };
    205 
    206 namespace PR20887 {
    207 class X1 { a::operator=; }; // expected-error {{undeclared identifier 'a'}}
    208 class X2 { a::a; }; // expected-error {{undeclared identifier 'a'}}
    209 }
    210 
    211 class BadExceptionSpec {
    212   void f() throw(int; // expected-error {{expected ')'}} expected-note {{to match}}
    213   void g() throw( // expected-note {{to match}}
    214       int( // expected-note {{to match}}
    215           ; // expected-error 2{{expected ')'}} expected-error {{unexpected end of exception specification}}
    216           ));
    217 };
    218 
    219 // PR11109 must appear at the end of the source file
    220 class pr11109r3 { // expected-note{{to match this '{'}}
    221   public // expected-error{{expected ':'}} expected-error{{expected '}'}} expected-error{{expected ';' after class}}
    222