2 #ifndef BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
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3 #define BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
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5 // Copyright Aleksey Gurtovoy 2000-2004
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7 // Distributed under the Boost Software License, Version 1.0.
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8 // (See accompanying file LICENSE_1_0.txt or copy at
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9 // http://www.boost.org/LICENSE_1_0.txt)
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11 // See http://www.boost.org/libs/mpl for documentation.
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13 // $Id: max_element.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
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14 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
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15 // $Revision: 49267 $
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17 #include <boost/mpl/less.hpp>
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18 #include <boost/mpl/iter_fold.hpp>
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19 #include <boost/mpl/begin_end.hpp>
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20 #include <boost/mpl/if.hpp>
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21 #include <boost/mpl/deref.hpp>
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22 #include <boost/mpl/apply.hpp>
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23 #include <boost/mpl/aux_/common_name_wknd.hpp>
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24 #include <boost/mpl/aux_/na_spec.hpp>
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26 namespace boost { namespace mpl {
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28 BOOST_MPL_AUX_COMMON_NAME_WKND(max_element)
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32 template< typename Predicate >
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35 template< typename OldIterator, typename Iterator >
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38 typedef typename apply2<
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40 , typename deref<OldIterator>::type
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41 , typename deref<Iterator>::type
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44 typedef typename if_<
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56 typename BOOST_MPL_AUX_NA_PARAM(Sequence)
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57 , typename Predicate = less<_,_>
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62 , typename begin<Sequence>::type
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63 , protect< aux::select_max<Predicate> >
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68 BOOST_MPL_AUX_NA_SPEC(1, max_element)
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72 #endif // BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
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