1 files changed, 20 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/alias-decl-32.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/alias-decl-32.C
new file mode 100644
index 0000000..cb39edd
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/alias-decl-32.C
@@ -0,0 +1,20 @@
+// PR c++/56611
+// { dg-do compile { target c++11 } }
+
+template<class T> struct remove_reference     { typedef T type; };
+template<class T> struct remove_reference<T&> { typedef T type; };
+template<class T> T declval() { return T(); }
+
+int f(int, int){return 0;}
+struct Func{};
+
+template<class... Args> using result2
+= decltype(f(declval<typename remove_reference<Args>::type>()...));
+
+template<class Sig> struct R;
+template<class This, class... Args> struct R< This(Args...) > 
+{
+  typedef result2<Args...> type;
+};
+
+typedef R< Func(int, int) >::type R_type;