1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/overload/reftemp2.C b/gcc/testsuite/g++.dg/overload/reftemp2.C
new file mode 100644
index 000000000..365d5b13f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/overload/reftemp2.C
@@ -0,0 +1,23 @@
+// DR 391 says that we always bind a reference to the base subobject; it is
+// incorrect to call the A copy constructor to initialize the parameter of
+// f.
+
+int fail;
+
+struct A {
+  A() { }
+  A(const A&) { fail = 1; }
+};
+struct B : public A { };
+struct X {
+  operator B() { return B(); }
+};
+X x;
+
+void f (const A&) { }
+
+int main()
+{
+  f(x);
+  return fail;
+}