1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/sfinae22.C b/gcc/testsuite/g++.dg/cpp0x/sfinae22.C
new file mode 100644
index 000000000..2b9351a97
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/sfinae22.C
@@ -0,0 +1,23 @@
+// PR c++/48745
+// { dg-options -std=c++0x }
+
+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... Args>
+decltype(T{create<Args>()...}, char()) f(int);
+
+template<class, class...>
+char (&f(...))[2];
+
+static_assert(sizeof(f<int, void>(0)) != 1, "Error"); // { dg-bogus "void value" "" { xfail *-*-* } }