boost/mpl/iterator_category.hpp

0001
0002 #ifndef BOOST_MPL_ITERATOR_CATEGORY_HPP_INCLUDED
0003 #define BOOST_MPL_ITERATOR_CATEGORY_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 2000-2004
0006 //
0007 // Distributed under the Boost Software License, Version 1.0.
0008 // (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010 //
0011 // See http://www.boost.org/libs/mpl for documentation.
0012
0013 // $Id$
0014 // $Date$
0015 // $Revision$
0016
0017 #include <boost/mpl/aux_/na_spec.hpp>
0018 #include <boost/mpl/aux_/lambda_support.hpp>
0019
0020 namespace boost {  namespace mpl {
0021
0022 template<
0023       typename BOOST_MPL_AUX_NA_PARAM(Iterator)
0024     >
0025 struct iterator_category
0026 {
0027     typedef typename Iterator::category type;
0028     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,iterator_category,(Iterator))
0029 };
0030
0031 BOOST_MPL_AUX_NA_SPEC(1, iterator_category)
0032
0033 }}
0034
0035 #endif // BOOST_MPL_ITERATOR_CATEGORY_HPP_INCLUDED