1 files changed, 44 insertions, 0 deletions
diff --git a/clang/test/CXX/class.access/p4.cpp b/clang/test/CXX/class.access/p4.cpp
index 7aa614cd8b1..e397db126c8 100644
--- a/clang/test/CXX/class.access/p4.cpp
+++ b/clang/test/CXX/class.access/p4.cpp
@@ -112,3 +112,47 @@ namespace test3 {
     A local; // expected-error {{'~A' is a private member}}
   }
 }
+
+// Conversion functions.
+namespace test4 {
+  class Base {
+  private:
+    operator Private(); // expected-note 4 {{declared private here}}
+  public:
+    operator Public();
+  };
+
+  class Derived1 : private Base { // expected-note 2 {{declared private here}} \
+                                  // expected-note {{constrained by private inheritance}}
+    Private test1() { return *this; } // expected-error {{'operator Private' is a private member}}
+    Public test2() { return *this; }
+  };
+  Private test1(Derived1 &d) { return d; } // expected-error {{'operator Private' is a private member}} \
+                                           // expected-error {{cannot cast 'test4::Derived1' to its private base class}}
+  Public test2(Derived1 &d) { return d; } // expected-error {{cannot cast 'test4::Derived1' to its private base class}} \
+                                          // expected-error {{'operator Public' is a private member}}
+
+
+  class Derived2 : public Base {
+    Private test1() { return *this; } // expected-error {{'operator Private' is a private member}}
+    Public test2() { return *this; }
+  };
+  Private test1(Derived2 &d) { return d; } // expected-error {{'operator Private' is a private member}}
+  Public test2(Derived2 &d) { return d; }
+
+  class Derived3 : private Base { // expected-note {{constrained by private inheritance here}} \
+                                  // expected-note {{declared private here}}
+  public:
+    operator Private();
+  };
+  Private test1(Derived3 &d) { return d; }
+  Public test2(Derived3 &d) { return d; } // expected-error {{'operator Public' is a private member of 'test4::Base'}} \
+                                          // expected-error {{cannot cast 'test4::Derived3' to its private base class}}
+
+  class Derived4 : public Base {
+  public:
+    operator Private();
+  };
+  Private test1(Derived4 &d) { return d; }
+  Public test2(Derived4 &d) { return d; }
+}