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// PR c++/52422
// { dg-options -std=c++11 }
template<class T>
struct add_rval_ref
{
typedef T&& type;
};
template<>
struct add_rval_ref<void>
{
typedef void type;
};
template<class T>
typename add_rval_ref<T>::type create();
template<class T, class U,
class = decltype( (create<T>().*create<U>())() )
>
auto f(int) -> char(&)[1];
template<class, class>
auto f(...) -> char(&)[2];
static_assert(sizeof(f<void, void>(0)) != 1, "");
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