1 files changed, 18 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae12.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae12.C
new file mode 100644
index 0000000..22a9847
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae12.C
@@ -0,0 +1,18 @@
+// PR c++/48535
+// { dg-do compile { target c++11 } }
+
+template<class T,
+ class = decltype(T{})
+>
+char f(int);
+
+template<class>
+char (&f(...))[2];
+
+struct A { virtual ~A() = 0; };
+
+static_assert(sizeof(f<A>(0)) != 1, "Error"); // (a)
+static_assert(sizeof(f<void()>(0)) != 1, "Error"); // (b)
+static_assert(sizeof(f<int&>(0)) != 1, "Error"); // (d)
+static_assert(sizeof(f<const int&>(0)) == 1, "Error"); // (e)
+static_assert(sizeof(f<int[]>(0)) != 1, "Error"); // (f)