1 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/torture/pr40834.C b/gcc/testsuite/g++.dg/torture/pr40834.C
new file mode 100644
index 000000000..67d302853
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr40834.C
@@ -0,0 +1,52 @@
+/* { dg-do run } */
+
+extern "C" void abort (void);
+class XalanDOMString
+{
+public:
+  int y;
+};
+
+class XObject
+{
+public:
+  const XalanDOMString& str() const { return x; }
+  XalanDOMString x;
+};
+
+class XObjectPtr
+{
+public:
+  XObjectPtr(const XObjectPtr& theSource)
+    {
+      m_xobjectPtr = theSource.m_xobjectPtr;
+    }
+  const XObject* operator->() const
+    {
+      return m_xobjectPtr;
+    };
+  XObjectPtr(XObject *p) { m_xobjectPtr = p; }
+  XObject* m_xobjectPtr;
+};
+
+class FunctionSubstringBefore
+{
+public:
+  int execute( const XObjectPtr arg1) const
+    {
+      const XalanDOMString& theFirstString = arg1->str();
+      return theFirstString.y;
+    }
+};
+
+int
+main ()
+{
+  XObject x; 
+  XObjectPtr y (&x);
+  x.x.y = -1;
+  FunctionSubstringBefore z;
+  if (z.execute (y) != -1)
+    abort ();
+  return 0;
+}