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+// g++ 1.37.1 bug 900519_03
+
+// The C++ Reference Manual says (in section 8.4.3) "A reference to a
+// volatile T can be initialized with a volatile T or a plain T but not a
+// const T. A reference to a const T can be initialized with a const T or
+// a plain T or something that can be converted into a plain T, but not a
+// volatile T."
+
+// g++ fails to disgnose such errors in most cases.
+
+// keywords: references, initialization, type qualifiers
+
+extern const int cint_obj;
+extern volatile int vint_obj;
+
+void take_cint_ref (const int& arg) { } // ERROR -
+void take_vint_ref (volatile int& arg) { } // ERROR -
+
+const int& global_cint_ref2 = vint_obj; // ERROR -
+
+volatile int& global_vint_ref1 = cint_obj; // ERROR -
+
+extern const int& extern_cint_ref;
+extern volatile int& extern_vint_ref;
+
+void test_0 ()
+{
+ const int& local_cint_ref2 = vint_obj; // ERROR -
+
+ volatile int& local_vint_ref1 = cint_obj; // ERROR -
+}
+
+void test_1 ()
+{
+ take_cint_ref (vint_obj); // ERROR -
+
+ take_vint_ref (cint_obj); // ERROR - caught
+}
+
+void test_2 ()
+{
+ take_cint_ref (extern_vint_ref); // ERROR -
+
+ take_vint_ref (extern_cint_ref); // ERROR -
+}
+
+int main () { return 0; }