1 files changed, 15 insertions, 0 deletions
diff --git a/test/CXX/class.access/class.access.base/p1.cpp b/test/CXX/class.access/class.access.base/p1.cpp
index 43cc99e..88e2688 100644
--- a/test/CXX/class.access/class.access.base/p1.cpp
+++ b/test/CXX/class.access/class.access.base/p1.cpp
@@ -153,3 +153,18 @@ namespace test2 {
     t->Base::spriv++; // expected-error 2 {{private member}}
   }
 }
+
+namespace PR12788 {
+  class A {
+  protected:
+    struct {
+      int x;
+    };
+  };
+  class B : A {
+    void f() {
+      ++x;
+      A::x++;
+    }
+  };
+}