1 files changed, 20 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae13.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae13.C
new file mode 100644
index 0000000..3cff1b4
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae13.C
@@ -0,0 +1,20 @@
+// PR c++/48581
+// { dg-do compile { target c++11 } }
+
+template<class T>
+T&& create();
+
+template<class T,
+  class = decltype(foo(create<T>()))
+>
+auto f(int) -> char;
+
+template<class>
+auto f(...) -> char (&)[2];
+
+struct S {};
+void foo(S);
+
+static_assert(sizeof(f<S>(0)) == 1, "Error"); // (#)
+
+int main() {}