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- #ifndef BOOST_MPL_FOLD_HPP_INCLUDED
- #define BOOST_MPL_FOLD_HPP_INCLUDED
- // Copyright Aleksey Gurtovoy 2001-2004
- // Copyright David Abrahams 2001-2002
- //
- // 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)
- //
- // See http://www.boost.org/libs/mpl for documentation.
- // $Id$
- // $Date$
- // $Revision$
- #include <boost/mpl/begin_end.hpp>
- #include <boost/mpl/O1_size.hpp>
- #include <boost/mpl/aux_/fold_impl.hpp>
- #include <boost/mpl/aux_/na_spec.hpp>
- #include <boost/mpl/aux_/lambda_support.hpp>
- namespace boost { namespace mpl {
- template<
- typename BOOST_MPL_AUX_NA_PARAM(Sequence)
- , typename BOOST_MPL_AUX_NA_PARAM(State)
- , typename BOOST_MPL_AUX_NA_PARAM(ForwardOp)
- >
- struct fold
- {
- typedef typename aux::fold_impl<
- ::boost::mpl::O1_size<Sequence>::value
- , typename begin<Sequence>::type
- , typename end<Sequence>::type
- , State
- , ForwardOp
- >::state type;
- BOOST_MPL_AUX_LAMBDA_SUPPORT(3,fold,(Sequence,State,ForwardOp))
- };
- BOOST_MPL_AUX_NA_SPEC(3, fold)
- }}
- #endif // BOOST_MPL_FOLD_HPP_INCLUDED
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