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145 lines
4.2 KiB
145 lines
4.2 KiB
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#ifndef BOOST_MPL_TRANSFORM_HPP_INCLUDED |
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#define BOOST_MPL_TRANSFORM_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: transform.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/pair_view.hpp> |
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#include <boost/mpl/is_sequence.hpp> |
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#include <boost/mpl/eval_if.hpp> |
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#include <boost/mpl/lambda.hpp> |
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#include <boost/mpl/bind.hpp> |
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#include <boost/mpl/or.hpp> |
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#include <boost/mpl/not.hpp> |
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#include <boost/mpl/aux_/na.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< |
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typename Seq |
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, typename Op |
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, typename In |
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> |
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struct transform1_impl |
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: fold< |
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Seq |
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, typename In::state |
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, bind2< typename lambda< typename In::operation >::type |
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, _1 |
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, bind1< typename lambda<Op>::type, _2> |
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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 Seq |
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, typename Op |
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, typename In |
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> |
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struct reverse_transform1_impl |
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: reverse_fold< |
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Seq |
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, typename In::state |
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, bind2< typename lambda< typename In::operation >::type |
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, _1 |
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, bind1< typename lambda<Op>::type, _2> |
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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 Seq1 |
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, typename Seq2 |
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, typename Op |
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, typename In |
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> |
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struct transform2_impl |
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: fold< |
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pair_view<Seq1,Seq2> |
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, typename In::state |
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, bind2< typename lambda< typename In::operation >::type |
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, _1 |
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, bind2< |
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typename lambda<Op>::type |
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, bind1<first<>,_2> |
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, bind1<second<>,_2> |
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> |
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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 Seq1 |
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, typename Seq2 |
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, typename Op |
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, typename In |
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> |
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struct reverse_transform2_impl |
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: reverse_fold< |
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pair_view<Seq1,Seq2> |
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, typename In::state |
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, bind2< typename lambda< typename In::operation >::type |
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, _1 |
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, bind2< typename lambda< Op >::type |
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, bind1<first<>,_2> |
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, bind1<second<>,_2> |
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> |
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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, transform1) |
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BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, transform2) |
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#define AUX778076_TRANSFORM_DEF(name) \ |
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template< \ |
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typename BOOST_MPL_AUX_NA_PARAM(Seq1) \ |
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, typename BOOST_MPL_AUX_NA_PARAM(Seq2OrOperation) \ |
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, typename BOOST_MPL_AUX_NA_PARAM(OperationOrInserter) \ |
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, typename BOOST_MPL_AUX_NA_PARAM(Inserter) \ |
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> \ |
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struct name \ |
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{ \ |
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typedef typename eval_if< \ |
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or_< \ |
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is_na<OperationOrInserter> \ |
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, is_lambda_expression< Seq2OrOperation > \ |
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, not_< is_sequence<Seq2OrOperation> > \ |
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> \ |
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, name##1<Seq1,Seq2OrOperation,OperationOrInserter> \ |
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, name##2<Seq1,Seq2OrOperation,OperationOrInserter,Inserter> \ |
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>::type type; \ |
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}; \ |
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BOOST_MPL_AUX_NA_SPEC(4, name) \ |
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/**/ |
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AUX778076_TRANSFORM_DEF(transform) |
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AUX778076_TRANSFORM_DEF(reverse_transform) |
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#undef AUX778076_TRANSFORM_DEF |
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}} |
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#endif // BOOST_MPL_TRANSFORM_HPP_INCLUDED
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