1 
2 #ifndef BOOST_MPL_ITER_FOLD_BACKWARD_HPP_INCLUDED
3 #define BOOST_MPL_ITER_FOLD_BACKWARD_HPP_INCLUDED
4 
5 // Copyright Aleksey Gurtovoy 2001-2004
6 // Copyright Dave Abrahams 2001-2002
7 //
8 // Distributed under the Boost Software License, Version 1.0.
9 // (See accompanying file LICENSE_1_0.txt or copy at
10 // http://www.boost.org/LICENSE_1_0.txt)
11 //
12 // See http://www.boost.org/libs/mpl for documentation.
13 
14 // $Id$
15 // $Date$
16 // $Revision$
17 
18 #include <boost/mpl/begin_end.hpp>
19 #include <boost/mpl/O1_size.hpp>
20 #include <boost/mpl/arg.hpp>
21 #include <boost/mpl/lambda.hpp>
22 #include <boost/mpl/aux_/reverse_iter_fold_impl.hpp>
23 #include <boost/mpl/aux_/na_spec.hpp>
24 #include <boost/mpl/aux_/lambda_support.hpp>
25 
26 namespace boost { namespace mpl {
27 
28 template<
29       typename BOOST_MPL_AUX_NA_PARAM(Sequence)
30     , typename BOOST_MPL_AUX_NA_PARAM(State)
31     , typename BOOST_MPL_AUX_NA_PARAM(BackwardOp)
32     , typename ForwardOp = arg<1>
33     >
34 struct reverse_iter_fold
35 {
36     typedef typename aux::reverse_iter_fold_impl<
37           ::boost::mpl::O1_size<Sequence>::value
38         , typename begin<Sequence>::type
39         , typename end<Sequence>::type
40         , State
41         , typename lambda<BackwardOp>::type
42         , typename lambda<ForwardOp>::type
43         >::state type;
44 
45     BOOST_MPL_AUX_LAMBDA_SUPPORT(
46           4
47         , reverse_iter_fold
48         , (Sequence,State,BackwardOp,ForwardOp)
49         )
50 };
51 
52 BOOST_MPL_AUX_NA_SPEC(3, reverse_iter_fold)
53 
54 }}
55 
56 #endif // BOOST_MPL_ITER_FOLD_BACKWARD_HPP_INCLUDED
57