Chris@16: 
Chris@16: #ifndef BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED
Chris@16: #define BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Eric Friedman 2003
Chris@16: // Copyright Aleksey Gurtovoy 2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/apply.hpp>
Chris@16: #include <boost/mpl/eval_if.hpp>
Chris@16: #include <boost/mpl/if.hpp>
Chris@16: #include <boost/mpl/pair.hpp>
Chris@16: #include <boost/mpl/aux_/lambda_spec.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl { 
Chris@16: 
Chris@16: namespace aux {
Chris@16: 
Chris@16: template< typename Pred, typename In1Op, typename In2Op >
Chris@16: struct partition_op
Chris@16: {
Chris@16:     template< typename State, typename T >
Chris@16:     struct apply
Chris@16:     {
Chris@16:         typedef typename State::first first_;
Chris@16:         typedef typename State::second second_;
Chris@16:         typedef typename apply1< Pred,T >::type pred_;
Chris@16: 
Chris@16:         typedef typename eval_if<
Chris@16:               pred_
Chris@16:             , apply2<In1Op,first_,T>
Chris@16:             , apply2<In2Op,second_,T>
Chris@16:             >::type result_;
Chris@16: 
Chris@16:         typedef typename if_<
Chris@16:               pred_
Chris@16:             , pair< result_,second_ >
Chris@16:             , pair< first_,result_ >
Chris@16:             >::type type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: } // namespace aux
Chris@16: 
Chris@16: BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::partition_op)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED