os/ossrv/ossrv_pub/boost_apis/boost/mpl/stable_partition.hpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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#ifndef BOOST_MPL_STABLE_PARTITION_HPP_INCLUDED
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#define BOOST_MPL_STABLE_PARTITION_HPP_INCLUDED
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// Copyright Eric Friedman 2002-2003
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// Copyright Aleksey Gurtovoy 2004
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//
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// Distributed under the Boost Software License, Version 1.0. 
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// (See accompanying file LICENSE_1_0.txt or copy at 
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Source: /cvsroot/boost/boost/boost/mpl/stable_partition.hpp,v $
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// $Date: 2004/11/28 01:58:27 $
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// $Revision: 1.4 $
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#include <boost/mpl/fold.hpp>
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#include <boost/mpl/reverse_fold.hpp>
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#include <boost/mpl/protect.hpp>
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#include <boost/mpl/aux_/partition_op.hpp>
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#include <boost/mpl/aux_/inserter_algorithm.hpp>
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#include <boost/mpl/aux_/na.hpp>
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namespace boost { namespace mpl {
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namespace aux {
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template <
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      typename Sequence
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    , typename Pred
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    , typename In
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    , typename In2
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    , typename In1 = typename if_na<In,In2>::type
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    >
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struct stable_partition_impl
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    : fold<
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          Sequence
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        , pair< typename In1::state, typename In2::state >
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        , protect< partition_op< 
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              Pred
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            , typename In1::operation
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            , typename In2::operation
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            > >
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        >
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{
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};
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template <
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      typename Sequence
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    , typename Pred
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    , typename In
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    , typename In2
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    , typename In1 = typename if_na<In,In2>::type
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    >
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struct reverse_stable_partition_impl
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    : reverse_fold<
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          Sequence
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        , pair< typename In1::state, typename In2::state >
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        , protect< partition_op< 
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              Pred
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            , typename In1::operation
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            , typename In2::operation
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            > >
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        >
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{
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};
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} // namespace aux
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BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, stable_partition)
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}}
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#endif // BOOST_MPL_STABLE_PARTITION_HPP_INCLUDED