1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/alias-decl-enum-1.C b/gcc/testsuite/g++.dg/cpp0x/alias-decl-enum-1.C
new file mode 100644
index 0000000000..260a193a08
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/alias-decl-enum-1.C
@@ -0,0 +1,47 @@
+// PR c++/57734
+// { dg-do compile { target c++11 } }
+
+template<typename T, typename U>
+struct same_type { static const bool value = false; };
+
+template<typename T>
+struct same_type<T, T> { static const bool value = true; };
+
+enum e { zero };
+enum class eclass { one };
+
+template<typename T>
+using enum_alias = e;
+
+template<typename T>
+using eclass_alias = eclass;
+
+typedef enum_alias<void> etest0;
+typedef enum_alias<void> etest0;
+typedef enum_alias<int>  etest0;
+typedef enum_alias<int>  etest1;
+
+static_assert (same_type<etest0, etest1>::value, "");
+
+typedef eclass_alias<void> ectest0;
+typedef eclass_alias<void> ectest0;
+typedef eclass_alias<int>  ectest0;
+typedef eclass_alias<int>  ectest1;
+
+static_assert (same_type<ectest0, ectest1>::value, "");
+
+template<typename T>
+enum_alias<T> efoo(T f) { return enum_alias<T>::zero; }
+
+template<typename T>
+constexpr enum_alias<T> cefoo(T f) { return enum_alias<T>::zero; }
+
+static_assert ( cefoo(1) == e::zero, "");
+
+template<typename T>
+eclass_alias<T> ecfoo(T f) { return eclass_alias<T>::one; }
+
+template<typename T>
+constexpr eclass_alias<T> cecfoo(T f) { return eclass_alias<T>::one; }
+
+static_assert ( cecfoo(1) == eclass::one, "");