1
2#ifndef BOOST_MPL_ITER_FOLD_HPP_INCLUDED
3#define BOOST_MPL_ITER_FOLD_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2001-2004
6// Copyright David 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/lambda.hpp>
21#include <boost/mpl/aux_/iter_fold_impl.hpp>
22#include <boost/mpl/aux_/na_spec.hpp>
23#include <boost/mpl/aux_/lambda_support.hpp>
24
25namespace boost { namespace mpl {
26
27template<
28 typename BOOST_MPL_AUX_NA_PARAM(Sequence)
29 , typename BOOST_MPL_AUX_NA_PARAM(State)
30 , typename BOOST_MPL_AUX_NA_PARAM(ForwardOp)
31 >
32struct iter_fold
33{
34 typedef typename aux::iter_fold_impl<
35 ::boost::mpl::O1_size<Sequence>::value
36 , typename begin<Sequence>::type
37 , typename end<Sequence>::type
38 , State
39 , typename lambda<ForwardOp>::type
40 >::state type;
41
42 BOOST_MPL_AUX_LAMBDA_SUPPORT(3,iter_fold,(Sequence,State,ForwardOp))
43};
44
45BOOST_MPL_AUX_NA_SPEC(3, iter_fold)
46
47}}
48
49#endif // BOOST_MPL_ITER_FOLD_HPP_INCLUDED
50