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diff --git a/boost/test/tools/detail/expression_holder.hpp b/boost/test/tools/detail/expression_holder.hpp
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+//  (C) Copyright Gennadiy Rozental 2011-2014.
+//  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)
+
+//  See http://www.boost.org/libs/test for the library home page.
+//
+//  File        : $RCSfile$
+//
+//  Version     : $Revision: 74248 $
+//
+//  Description : toolbox implementation details
+// ***************************************************************************
+
+#ifndef BOOST_TEST_TOOLS_DETAIL_EXPRESSION_HOLDER_HPP_012705GER
+#define BOOST_TEST_TOOLS_DETAIL_EXPRESSION_HOLDER_HPP_012705GER
+
+#ifdef BOOST_NO_CXX11_AUTO_DECLARATIONS
+
+#include <boost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace boost {
+namespace test_tools {
+namespace tt_detail {
+
+// ************************************************************************** //
+// **************         tt_detail::expression_holder         ************** //
+// ************************************************************************** //
+
+class expression_holder {
+public:
+    virtual                     ~expression_holder() {}
+    virtual assertion_result    evaluate( bool no_message = false )  const = 0;
+};
+
+//____________________________________________________________________________//
+
+template<typename E>
+class  expression_holder_t: public expression_holder {
+public:
+    explicit                    expression_holder_t( E const& e ) : m_expr( e ) {}
+
+private:
+    virtual assertion_result    evaluate( bool no_message = false )  const { return m_expr.evaluate( no_message ); }
+
+    E                           m_expr;
+};
+
+//____________________________________________________________________________//
+
+template<typename E>
+expression_holder_t<E>
+hold_expression( E const& e )
+{
+    return expression_holder_t<E>( e );
+}
+
+//____________________________________________________________________________//
+
+} // namespace tt_detail
+} // namespace test_tools
+} // namespace boost
+
+#include <boost/test/detail/enable_warnings.hpp>
+
+#endif
+
+#endif // BOOST_TEST_TOOLS_DETAIL_EXPRESSION_HOLDER_HPP_012705GER