Added boost header

test/external/boost/xpressive/detail/utility/never_true.hpp

@@ -0,0 +1,25 @@
+///////////////////////////////////////////////////////////////////////////////
+// never_true.hpp
+//
+//  Copyright 2008 Eric Niebler. 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)
+
+#ifndef BOOST_XPRESSIVE_DETAIL_UTILITY_NEVER_TRUE_HPP_EAN_10_04_2005
+#define BOOST_XPRESSIVE_DETAIL_UTILITY_NEVER_TRUE_HPP_EAN_10_04_2005
+
+#include <boost/mpl/bool.hpp>
+
+namespace boost { namespace xpressive { namespace detail
+{
+
+    // for use in static asserts
+    template<typename T>
+    struct never_true
+      : mpl::false_
+    {
+    };
+
+}}}
+
+#endif