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58 lines
1.5 KiB
58 lines
1.5 KiB
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#ifndef BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED |
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#define BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED |
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// Copyright Eric Friedman 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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// $Id: partition_op.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/apply.hpp> |
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#include <boost/mpl/eval_if.hpp> |
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#include <boost/mpl/if.hpp> |
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#include <boost/mpl/pair.hpp> |
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#include <boost/mpl/aux_/lambda_spec.hpp> |
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namespace boost { namespace mpl { |
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namespace aux { |
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template< typename Pred, typename In1Op, typename In2Op > |
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struct partition_op |
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{ |
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template< typename State, typename T > |
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struct apply |
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{ |
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typedef typename State::first first_; |
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typedef typename State::second second_; |
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typedef typename apply1< Pred,T >::type pred_; |
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typedef typename eval_if< |
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pred_ |
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, apply2<In1Op,first_,T> |
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, apply2<In2Op,second_,T> |
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>::type result_; |
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typedef typename if_< |
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pred_ |
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, pair< result_,second_ > |
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, pair< first_,result_ > |
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>::type type; |
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}; |
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}; |
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} // namespace aux |
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BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::partition_op) |
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}} |
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#endif // BOOST_MPL_AUX_PARTITION_OP_HPP_INCLUDED
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