1 files changed, 37 insertions, 0 deletions
diff --git a/clang/test/CXX/class/class.friend/p1-ambiguous.cpp b/clang/test/CXX/class/class.friend/p1-ambiguous.cpp
new file mode 100644
index 0000000..a9dca4f
--- /dev/null
+++ b/clang/test/CXX/class/class.friend/p1-ambiguous.cpp
@@ -0,0 +1,37 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// Make sure that friend declarations don't introduce ambiguous
+// declarations.
+
+// Test case courtesy of Shantonu Sen.
+// Bug 4784.
+
+class foo;
+
+extern "C" {
+  int c_func(foo *a);
+};
+int cpp_func(foo *a);
+
+class foo {
+public:
+  friend int c_func(foo *a);
+  friend int cpp_func(foo *a);
+  int caller();
+private:
+  int x;
+};
+
+int c_func(foo *a) {
+  return a->x;
+}
+
+int cpp_func(foo *a) {
+  return a->x;
+}
+
+int foo::caller() {
+    c_func(this);
+    cpp_func(this);
+    return 0;
+}