#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