1 files changed, 17 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae16.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae16.C
new file mode 100644
index 0000000..56cbdad
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae16.C
@@ -0,0 +1,17 @@
+// PR c++/48531
+// { dg-do compile { target c++11 } }
+
+template<class T,
+  class = decltype(T())
+>
+char f(int);
+
+template<class>
+double f(...);
+
+struct B2 {
+  B2(...);
+};
+
+#define SA(X) static_assert ((X), #X)
+SA(sizeof(f<B2[2]>(0)) != 1);