williamr@2: 
williamr@2: #ifndef BOOST_MPL_FOLD_HPP_INCLUDED
williamr@2: #define BOOST_MPL_FOLD_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2001-2004
williamr@2: // Copyright David Abrahams 2001-2002
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/fold.hpp,v $
williamr@2: // $Date: 2004/09/02 15:40:41 $
williamr@2: // $Revision: 1.4 $
williamr@2: 
williamr@2: #include <boost/mpl/begin_end.hpp>
williamr@2: #include <boost/mpl/O1_size.hpp>
williamr@2: #include <boost/mpl/aux_/fold_impl.hpp>
williamr@2: #include <boost/mpl/aux_/na_spec.hpp>
williamr@2: #include <boost/mpl/aux_/lambda_support.hpp>
williamr@2: 
williamr@2: namespace boost { namespace mpl {
williamr@2: 
williamr@2: template<
williamr@2:       typename BOOST_MPL_AUX_NA_PARAM(Sequence)
williamr@2:     , typename BOOST_MPL_AUX_NA_PARAM(State)
williamr@2:     , typename BOOST_MPL_AUX_NA_PARAM(ForwardOp)
williamr@2:     >
williamr@2: struct fold
williamr@2: {
williamr@2:     typedef typename aux::fold_impl<
williamr@2:           ::boost::mpl::O1_size<Sequence>::value
williamr@2:         , typename begin<Sequence>::type
williamr@2:         , typename end<Sequence>::type
williamr@2:         , State
williamr@2:         , ForwardOp
williamr@2:         >::state type;
williamr@2: 
williamr@2:     BOOST_MPL_AUX_LAMBDA_SUPPORT(3,fold,(Sequence,State,ForwardOp))
williamr@2: };
williamr@2: 
williamr@2: BOOST_MPL_AUX_NA_SPEC(3, fold)
williamr@2: 
williamr@2: }}
williamr@2: 
williamr@2: #endif // BOOST_MPL_FOLD_HPP_INCLUDED