Added a test that tests the compiler if references are bound correctly. Also added the second copyright notice.

test/optional_test_the_compiler.cpp

@@ -0,0 +1,108 @@
+// Copyright (C) 2014 Andrzej Krzemienski.
+//
+// Use, modification, and distribution is subject to 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)
+//
+// See http://www.boost.org/lib/optional for documentation.
+//
+// You are welcome to contact the author at:
+//  akrzemi1@gmail.com
+//
+// Revisions:
+//
+#include<iostream>
+#include<stdexcept>
+//#include<string>
+
+#define BOOST_ENABLE_ASSERT_HANDLER
+
+//#include "boost/bind/apply.hpp" // Included just to test proper interaction with boost::apply<> as reported by Daniel Wallin
+#include "boost/mpl/bool.hpp"
+#include "boost/mpl/bool_fwd.hpp"  // For mpl::true_ and mpl::false_
+#include "boost/static_assert.hpp"
+
+#include "boost/optional/optional.hpp"
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+#include "boost/test/minimal.hpp"
+#include "optional_test_common.cpp"
+
+
+const int global_i = 0;
+
+class TestingReferenceBinding
+{
+public:
+    TestingReferenceBinding(const int& ii)
+    {
+        BOOST_CHECK(&ii == &global_i);
+    }
+    
+    void operator=(const int& ii) 
+    {
+        BOOST_CHECK(&ii == &global_i);
+    }
+    #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+    void operator=(int&&) 
+    { 
+        BOOST_CHECK(false);
+    }
+    #endif
+};
+
+class TestingReferenceBinding2 // same definition as above, I need a different type
+{
+public:
+    TestingReferenceBinding2(const int& ii)
+    {
+        BOOST_CHECK(&ii == &global_i);
+    }
+    
+    void operator=(const int& ii) 
+    {
+        BOOST_CHECK(&ii == &global_i);
+    }
+    #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+    void operator=(int&&) 
+    { 
+        BOOST_CHECK(false);
+    }
+    #endif
+};
+
+
+void test_broken_compiler()
+{
+// we are not testing boost::optional here, but the c++ compiler
+// if this test fails, optional references will obviously fail too
+
+  const int& iref = global_i;
+  BOOST_CHECK(&iref == &global_i);
+  
+  TestingReferenceBinding ttt = global_i;
+  ttt = global_i;
+  
+  TestingReferenceBinding2 ttt2 = iref;
+  ttt2 = iref;
+}
+
+
+int test_main( int, char* [] )
+{
+  try
+  {
+    test_broken_compiler();
+  }
+  catch ( ... )
+  {
+    BOOST_ERROR("Unexpected Exception caught!");
+  }
+
+  return 0;
+}
+
+