| |
| #ifndef BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED |
| #define BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED |
| |
| // Copyright Eric Friedman 2003 |
| // Copyright Aleksey Gurtovoy 2004 |
| // |
| // 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: partition_op.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
| // $Revision: 49267 $ |
| |
| #include <boost/mpl/apply.hpp> |
| #include <boost/mpl/eval_if.hpp> |
| #include <boost/mpl/if.hpp> |
| #include <boost/mpl/pair.hpp> |
| #include <boost/mpl/aux_/lambda_spec.hpp> |
| |
| namespace boost { namespace mpl { |
| |
| namespace aux { |
| |
| template< typename Pred, typename In1Op, typename In2Op > |
| struct partition_op |
| { |
| template< typename State, typename T > |
| struct apply |
| { |
| typedef typename State::first first_; |
| typedef typename State::second second_; |
| typedef typename apply1< Pred,T >::type pred_; |
| |
| typedef typename eval_if< |
| pred_ |
| , apply2<In1Op,first_,T> |
| , apply2<In2Op,second_,T> |
| >::type result_; |
| |
| typedef typename if_< |
| pred_ |
| , pair< result_,second_ > |
| , pair< first_,result_ > |
| >::type type; |
| }; |
| }; |
| |
| } // namespace aux |
| |
| BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::partition_op) |
| |
| }} |
| |
| #endif // BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED |