1 | |
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2 | #ifndef BOOST_MPL_FOLD_HPP_INCLUDED |
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3 | #define BOOST_MPL_FOLD_HPP_INCLUDED |
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4 | |
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5 | // Copyright Aleksey Gurtovoy 2001-2004 |
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6 | // Copyright David Abrahams 2001-2002 |
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7 | // |
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8 | // Distributed under the Boost Software License, Version 1.0. |
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9 | // (See accompanying file LICENSE_1_0.txt or copy at |
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10 | // http://www.boost.org/LICENSE_1_0.txt) |
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11 | // |
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12 | // See http://www.boost.org/libs/mpl for documentation. |
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13 | |
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14 | // $Source: /cvsroot/boost/boost/boost/mpl/fold.hpp,v $ |
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15 | // $Date: 2004/09/02 15:40:41 $ |
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16 | // $Revision: 1.4 $ |
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17 | |
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18 | #include <boost/mpl/begin_end.hpp> |
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19 | #include <boost/mpl/O1_size.hpp> |
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20 | #include <boost/mpl/aux_/fold_impl.hpp> |
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21 | #include <boost/mpl/aux_/na_spec.hpp> |
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22 | #include <boost/mpl/aux_/lambda_support.hpp> |
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23 | |
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24 | namespace boost { namespace mpl { |
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25 | |
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26 | template< |
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27 | typename BOOST_MPL_AUX_NA_PARAM(Sequence) |
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28 | , typename BOOST_MPL_AUX_NA_PARAM(State) |
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29 | , typename BOOST_MPL_AUX_NA_PARAM(ForwardOp) |
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30 | > |
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31 | struct fold |
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32 | { |
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33 | typedef typename aux::fold_impl< |
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34 | ::boost::mpl::O1_size<Sequence>::value |
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35 | , typename begin<Sequence>::type |
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36 | , typename end<Sequence>::type |
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37 | , State |
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38 | , ForwardOp |
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39 | >::state type; |
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40 | |
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41 | BOOST_MPL_AUX_LAMBDA_SUPPORT(3,fold,(Sequence,State,ForwardOp)) |
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42 | }; |
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43 | |
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44 | BOOST_MPL_AUX_NA_SPEC(3, fold) |
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45 | |
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46 | }} |
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47 | |
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48 | #endif // BOOST_MPL_FOLD_HPP_INCLUDED |
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