diff --git a/include/boost/scoped_array.hpp b/include/boost/scoped_array.hpp
index 667dfff..fcb80f6 100644
--- a/include/boost/scoped_array.hpp
+++ b/include/boost/scoped_array.hpp
@@ -46,6 +46,9 @@ private:
 
     typedef scoped_array<T> this_type;
 
+    void operator==( scoped_array const& ) const;
+    void operator!=( scoped_array const& ) const;
+
 public:
 
     typedef T element_type;
diff --git a/include/boost/scoped_ptr.hpp b/include/boost/scoped_ptr.hpp
index 651deed..279cec3 100644
--- a/include/boost/scoped_ptr.hpp
+++ b/include/boost/scoped_ptr.hpp
@@ -47,6 +47,9 @@ private:
 
     typedef scoped_ptr<T> this_type;
 
+    void operator==( scoped_ptr const& ) const;
+    void operator!=( scoped_ptr const& ) const;
+
 public:
 
     typedef T element_type;
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index e6b49d7..9aa248f 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -33,5 +33,7 @@ import testing ;
           [ run shared_ptr_move_test.cpp ]
           [ compile-fail shared_ptr_pv_fail.cpp ]
           [ run sp_unary_addr_test.cpp ]
+          [ compile-fail scoped_ptr_eq_fail.cpp ]
+          [ compile-fail scoped_array_eq_fail.cpp ]
         ;
 }
diff --git a/test/scoped_array_eq_fail.cpp b/test/scoped_array_eq_fail.cpp
new file mode 100644
index 0000000..6c7f214
--- /dev/null
+++ b/test/scoped_array_eq_fail.cpp
@@ -0,0 +1,27 @@
+#include <boost/config.hpp>
+
+#if defined(BOOST_MSVC)
+#pragma warning(disable: 4786)  // identifier truncated in debug info
+#pragma warning(disable: 4710)  // function not inlined
+#pragma warning(disable: 4711)  // function selected for automatic inline expansion
+#pragma warning(disable: 4514)  // unreferenced inline removed
+#endif
+
+//
+// scoped_array_eq_fail.cpp - a negative test for "p == q"
+//
+// Copyright (c) 2008 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/scoped_array.hpp>
+
+int main()
+{
+    boost::scoped_array<int> p, q;
+    p == q; // must fail
+    return 0;
+}
diff --git a/test/scoped_ptr_eq_fail.cpp b/test/scoped_ptr_eq_fail.cpp
new file mode 100644
index 0000000..0d6ade4
--- /dev/null
+++ b/test/scoped_ptr_eq_fail.cpp
@@ -0,0 +1,27 @@
+#include <boost/config.hpp>
+
+#if defined(BOOST_MSVC)
+#pragma warning(disable: 4786)  // identifier truncated in debug info
+#pragma warning(disable: 4710)  // function not inlined
+#pragma warning(disable: 4711)  // function selected for automatic inline expansion
+#pragma warning(disable: 4514)  // unreferenced inline removed
+#endif
+
+//
+// scoped_ptr_eq_fail.cpp - a negative test for "p == q"
+//
+// Copyright (c) 2008 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/scoped_ptr.hpp>
+
+int main()
+{
+    boost::scoped_ptr<int> p, q;
+    p == q; // must fail
+    return 0;
+}