imgtools/imglib/boostlibrary/boost/mpl/remove_if.hpp
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#ifndef BOOST_MPL_REMOVE_IF_HPP_INCLUDED
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#define BOOST_MPL_REMOVE_IF_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2000-2004
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// Copyright David Abrahams 2003-2004
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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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// $Id: remove_if.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
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// $Revision: 49267 $
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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/eval_if.hpp>
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#include <boost/mpl/identity.hpp>
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#include <boost/mpl/protect.hpp>
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#include <boost/mpl/lambda.hpp>
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#include <boost/mpl/apply.hpp>
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#include <boost/mpl/aux_/inserter_algorithm.hpp>
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namespace boost { namespace mpl {
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namespace aux {
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template< typename Pred, typename InsertOp > struct remove_if_helper
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{
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    template< typename Sequence, typename U > struct apply
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    {
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        typedef typename eval_if<
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              typename apply1<Pred,U>::type
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            , identity<Sequence>
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            , apply2<InsertOp,Sequence,U>
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            >::type type;
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    };
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};
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template<
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      typename Sequence
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    , typename Predicate
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    , typename Inserter
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    >
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struct remove_if_impl
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    : fold<
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          Sequence
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        , typename Inserter::state
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        , protect< aux::remove_if_helper<
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              typename lambda<Predicate>::type
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            , typename Inserter::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 Predicate
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    , typename Inserter
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    >
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struct reverse_remove_if_impl
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    : reverse_fold<
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          Sequence
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        , typename Inserter::state
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        , protect< aux::remove_if_helper<
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              typename lambda<Predicate>::type
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            , typename Inserter::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(3, remove_if)
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}}
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#endif // BOOST_MPL_REMOVE_IF_HPP_INCLUDED