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89 lines
1.8 KiB
C++
89 lines
1.8 KiB
C++
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#ifndef BOOST_MPL_REPLACE_IF_HPP_INCLUDED
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#define BOOST_MPL_REPLACE_IF_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2000-2004
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// Copyright John R. Bandela 2000-2002
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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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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/transform.hpp>
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#include <boost/mpl/apply.hpp>
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#include <boost/mpl/if.hpp>
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#include <boost/mpl/aux_/inserter_algorithm.hpp>
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#include <boost/mpl/aux_/config/forwarding.hpp>
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namespace boost { namespace mpl {
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namespace aux {
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template< typename Predicate, typename T >
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struct replace_if_op
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{
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template< typename U > struct apply
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#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
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: if_<
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typename apply1<Predicate,U>::type
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, T
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, U
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>
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{
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#else
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{
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typedef typename if_<
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typename apply1<Predicate,U>::type
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, T
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, U
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>::type type;
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#endif
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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 T
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, typename Inserter
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>
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struct replace_if_impl
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: transform1_impl<
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Sequence
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, protect< aux::replace_if_op<Predicate,T> >
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, Inserter
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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 T
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, typename Inserter
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>
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struct reverse_replace_if_impl
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: reverse_transform1_impl<
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Sequence
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, protect< aux::replace_if_op<Predicate,T> >
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, Inserter
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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, replace_if)
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}}
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#endif // BOOST_MPL_REPLACE_IF_HPP_INCLUDED
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