2012-05-10 00:45:30 -04:00
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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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2013-01-13 17:38:19 -05:00
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// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
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2012-05-10 00:45:30 -04:00
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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
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