clang/test/SemaCXX/virtual-member-functions-key-function.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
   3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
   4
   5 struct A {
   6   virtual ~A();
   7 #if __cplusplus >= 201103L
   8 // expected-note@-2 2 {{overridden virtual function is here}}
   9 #endif
  10 };
  11
  12 struct B : A {
  13 #if __cplusplus <= 199711L
  14 // expected-error@-2 {{no suitable member 'operator delete' in 'B'}}
  15 #else
  16 // expected-error@-4 {{deleted function '~B' cannot override a non-deleted function}}
  17 // expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
  18 #endif
  19   B() { }
  20 #if __cplusplus <= 199711L
  21 // expected-note@-2 {{implicit destructor for 'B' first required here}}
  22 #endif
  23
  24   void operator delete(void *, int);
  25 #if __cplusplus <= 199711L
  26 // expected-note@-2 {{'operator delete' declared here}}
  27 #endif
  28 };
  29
  30 struct C : A {
  31 #if __cplusplus <= 199711L
  32 // expected-error@-2 {{no suitable member 'operator delete' in 'C'}}
  33 #else
  34 // expected-error@-4 {{deleted function '~C' cannot override a non-deleted function}}
  35 // expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
  36 #endif
  37   void operator delete(void *, int);
  38 #if __cplusplus <= 199711L
  39 // expected-note@-2 {{'operator delete' declared here}}
  40 #endif
  41 };
  42
  43 void f() {
  44   (void)new B;
  45   (void)new C;
  46 #if __cplusplus <= 199711L
  47 // expected-note@-2 {{implicit destructor for 'C' first required here}}
  48 #endif
  49 }
  50
  51 // Make sure that the key-function computation is consistent when the
  52 // first virtual member function of a nested class has an inline body.
  53 struct Outer {
  54   struct Inner {
  55     virtual void f() { }
  56     void g();
  57   };
  58 };
  59
  60 void Outer::Inner::g() { }