#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 |