1 files changed, 106 insertions, 0 deletions
diff --git a/test/SemaCXX/virtual-override.cpp b/test/SemaCXX/virtual-override.cpp
new file mode 100644
index 0000000..4a3b10f
--- /dev/null
+++ b/test/SemaCXX/virtual-override.cpp
@@ -0,0 +1,106 @@
+// RUN: clang-cc -fsyntax-only -faccess-control -verify %s
+
+namespace T1 {
+
+class A {
+  virtual int f(); // expected-note{{overridden virtual function is here}}
+};
+
+class B : A {
+  virtual void f(); // expected-error{{virtual function 'f' has a different return type ('void') than the function it overrides (which has return type 'int')}}
+};
+
+}
+
+namespace T2 {
+
+struct a { };
+struct b { };
+  
+class A {
+  virtual a* f(); // expected-note{{overridden virtual function is here}}
+};
+
+class B : A {
+  virtual b* f(); // expected-error{{return type of virtual function 'f' is not covariant with the return type of the function it overrides ('struct T2::b *' is not derived from 'struct T2::a *')}}
+};
+
+}
+
+namespace T3 {
+
+struct a { };
+struct b : private a { }; // expected-note{{'private' inheritance specifier here}}
+  
+class A {
+  virtual a* f(); // expected-note{{overridden virtual function is here}}
+};
+
+class B : A {
+  virtual b* f(); // expected-error{{return type of virtual function 'f' is not covariant with the return type of the function it overrides (conversion from 'struct T3::b' to inaccessible base class 'struct T3::a')}}
+};
+
+}
+
+namespace T4 {
+
+struct a { };
+struct a1 : a { };
+struct b : a, a1 { };
+  
+class A {
+  virtual a* f(); // expected-note{{overridden virtual function is here}}
+};
+
+class B : A {
+  virtual b* f(); // expected-error{{return type of virtual function 'f' is not covariant with the return type of the function it overrides (ambiguous conversion from derived class 'struct T4::b' to base class 'struct T4::a':\n\
+    struct T4::b -> struct T4::a\n\
+    struct T4::b -> struct T4::a1 -> struct T4::a)}}
+};
+
+}
+
+namespace T5 {
+  
+struct a { };
+
+class A {
+  virtual a* const f(); 
+  virtual a* const g(); // expected-note{{overridden virtual function is here}}
+};
+
+class B : A {
+  virtual a* const f(); 
+  virtual a* g(); // expected-error{{return type of virtual function 'g' is not covariant with the return type of the function it overrides ('struct T5::a *' has different qualifiers than 'struct T5::a *const')}}
+};
+
+}
+
+namespace T6 {
+  
+struct a { };
+
+class A {
+  virtual const a* f(); 
+  virtual a* g(); // expected-note{{overridden virtual function is here}}
+};
+
+class B : A {
+  virtual a* f(); 
+  virtual const a* g(); // expected-error{{return type of virtual function 'g' is not covariant with the return type of the function it overrides (class type 'struct T6::a const *' is more qualified than class type 'struct T6::a *'}}
+};
+
+}
+
+namespace T7 {
+  struct a { };
+  struct b { };
+
+  class A {
+    a* f();
+  };
+
+  class B : A {
+    virtual b* f();
+  };
+}