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// 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, "");
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