| 1 | |
|---|
| 2 | #ifndef BOOST_MPL_FOLD_HPP_INCLUDED |
|---|
| 3 | #define BOOST_MPL_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/aux_/fold_impl.hpp> |
|---|
| 21 | #include <boost/mpl/aux_/na_spec.hpp> |
|---|
| 22 | #include <boost/mpl/aux_/lambda_support.hpp> |
|---|
| 23 | |
|---|
| 24 | namespace boost { namespace mpl { |
|---|
| 25 | |
|---|
| 26 | template< |
|---|
| 27 | typename BOOST_MPL_AUX_NA_PARAM(Sequence) |
|---|
| 28 | , typename BOOST_MPL_AUX_NA_PARAM(State) |
|---|
| 29 | , typename BOOST_MPL_AUX_NA_PARAM(ForwardOp) |
|---|
| 30 | > |
|---|
| 31 | struct fold |
|---|
| 32 | { |
|---|
| 33 | typedef typename aux::fold_impl< |
|---|
| 34 | ::boost::mpl::O1_size<Sequence>::value |
|---|
| 35 | , typename begin<Sequence>::type |
|---|
| 36 | , typename end<Sequence>::type |
|---|
| 37 | , State |
|---|
| 38 | , ForwardOp |
|---|
| 39 | >::state type; |
|---|
| 40 | |
|---|
| 41 | BOOST_MPL_AUX_LAMBDA_SUPPORT(3,fold,(Sequence,State,ForwardOp)) |
|---|
| 42 | }; |
|---|
| 43 | |
|---|
| 44 | BOOST_MPL_AUX_NA_SPEC(3, fold) |
|---|
| 45 | |
|---|
| 46 | }} |
|---|
| 47 | |
|---|
| 48 | #endif // BOOST_MPL_FOLD_HPP_INCLUDED |
|---|
| 49 | |
|---|
