/*=============================================================================
Copyright (c) 1999-2003 Jaakko Jarvi
- Copyright (c) 2001-2006 Joel de Guzman
+ Copyright (c) 2001-2011 Joel de Guzman
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/fusion/iterator/deref.hpp>
#include <boost/fusion/iterator/next.hpp>
#include <boost/fusion/iterator/equal_to.hpp>
+#include <boost/fusion/support/as_const.hpp>
namespace boost { namespace fusion { namespace detail
{
static bool
call(I1 const& a, I2 const& b, mpl::false_)
{
- return *a <= *b
- && (!(*b <= *a) || call(fusion::next(a), fusion::next(b)));
+ return extension::as_const(*a) <= extension::as_const(*b)
+ && (!(extension::as_const(*b) <= extension::as_const(*a)) ||
+ call(fusion::next(a), fusion::next(b)));
}
template <typename I1, typename I2>