clang/test/SemaCXX/implicit-virtual-member-functions.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -triple %itanium_abi_triple -verify %s
   2 // RUN: %clang_cc1 -fsyntax-only -triple %itanium_abi_triple -verify -std=c++98 %s
   3 // RUN: %clang_cc1 -fsyntax-only -triple %itanium_abi_triple -verify -std=c++11 %s
   4 // RUN: %clang_cc1 -fsyntax-only -triple %ms_abi_triple -DMSABI -verify %s
   5 // RUN: %clang_cc1 -fsyntax-only -triple %ms_abi_triple -DMSABI -verify -std=c++98 %s
   6 // RUN: %clang_cc1 -fsyntax-only -triple %ms_abi_triple -DMSABI -verify -std=c++11 %s
   7
   8 struct A {
   9   virtual ~A();
  10 #if __cplusplus >= 201103L
  11 // expected-note@-2 3 {{overridden virtual function is here}}
  12 #endif
  13 };
  14
  15 struct B : A {
  16 #if __cplusplus <= 199711L
  17 // expected-error@-2 {{no suitable member 'operator delete' in 'B'}}
  18 #else
  19 // expected-error@-4 {{deleted function '~B' cannot override a non-deleted function}}
  20 // expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
  21 #ifdef MSABI
  22 // expected-note@-7 {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
  23 #endif
  24 #endif
  25   virtual void f();
  26
  27   void operator delete (void *, int);
  28 #if __cplusplus <= 199711L
  29 // expected-note@-2 {{'operator delete' declared here}}
  30 #endif
  31 };
  32
  33 #ifdef MSABI
  34 B b;
  35 #if __cplusplus <= 199711L
  36 // expected-note@-2 {{implicit destructor for 'B' first required here}}
  37 #else
  38 // expected-error@-4 {{attempt to use a deleted function}}
  39 #endif
  40
  41 #else
  42 void B::f() {
  43 #if __cplusplus <= 199711L
  44 // expected-note@-2 {{implicit destructor for 'B' first required here}}
  45 #endif
  46 }
  47 #endif
  48
  49 struct C : A {
  50 #if __cplusplus <= 199711L
  51 // expected-error@-2 {{no suitable member 'operator delete' in 'C'}}
  52 #else
  53 // expected-error@-4 {{deleted function '~C' cannot override a non-deleted function}}
  54 // expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
  55 #endif
  56
  57   C();
  58   void operator delete(void *, int);
  59 #if __cplusplus <= 199711L
  60 // expected-note@-2 {{'operator delete' declared here}}
  61 #endif
  62 };
  63
  64 C::C() { }
  65 #if __cplusplus <= 199711L
  66 // expected-note@-2 {{implicit destructor for 'C' first required here}}
  67 #endif
  68
  69 struct D : A {
  70 #if __cplusplus <= 199711L
  71 // expected-error@-2 {{no suitable member 'operator delete' in 'D'}}
  72 #else
  73 // expected-error@-4 {{deleted function '~D' cannot override a non-deleted function}}
  74 // expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
  75 #endif
  76   void operator delete(void *, int);
  77 #if __cplusplus <= 199711L
  78 // expected-note@-2 {{'operator delete' declared here}}
  79 #endif
  80 };
  81
  82 void f() {
  83   new D;
  84 #if __cplusplus <= 199711L
  85 // expected-note@-2 {{implicit destructor for 'D' first required here}}
  86 #endif
  87 }