1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/Wunused-parm.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/Wunused-parm.C
new file mode 100644
index 0000000..232e484
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/Wunused-parm.C
@@ -0,0 +1,24 @@
+// PR c++/57211
+// { dg-do compile { target c++11 } }
+// { dg-options "-Wunused-parameter" }
+
+template <class T> T&& move(T&);
+
+struct A
+{
+  struct B
+  {
+    B& operator=(B&&);
+  };
+
+  B f;
+
+  A& operator=(A&& p) = default;
+};
+
+int main()
+{
+  A a;
+  A b;
+  b = move(a);
+}