Napkin

#ifndef PSTADE_OVEN_SUB_RANGE_BASE_TYPE_HPP
#define PSTADE_OVEN_SUB_RANGE_BASE_TYPE_HPP
///////////////////////////////////////////////////////////////////////////////
// PStade.Oven
//
// Copyright 2006 MB.
// 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)

// Same as: boost::sub_range<Range>::base that is undocumented


#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/range/const_iterator.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/range/result_iterator.hpp>
#include <boost/type_traits/is_array.hpp>


namespace pstade { namespace oven {


template< class Range >
struct sub_range_base
{
	typedef boost::iterator_range<
		typename boost::range_result_iterator<Range>::type
	> type;
};


// Workaround:
//   In the case of adding explicitly add 'const' to array
//   (something like 'sub_range_base<array const>'),
//   VC7.1 is confused when ordering. I don't know why, so I define...

template< class Range >
struct const_sub_range_base
{
	typedef boost::iterator_range<
		typename boost::range_const_iterator<Range>::type
	> type;
};


} } // namespace pstade::oven


///////////////////////////////////////////////////////////////////////////////
#endif