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#ifndef BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
#define BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2000-2004
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/mpl for documentation.
// $Id: max_element.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
// $Revision: 49267 $
#include <boost/mpl/less.hpp>
#include <boost/mpl/iter_fold.hpp>
#include <boost/mpl/begin_end.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/apply.hpp>
#include <boost/mpl/aux_/common_name_wknd.hpp>
#include <boost/mpl/aux_/na_spec.hpp>
namespace boost { namespace mpl {
BOOST_MPL_AUX_COMMON_NAME_WKND(max_element)
namespace aux {
template< typename Predicate >
struct select_max
{
template< typename OldIterator, typename Iterator >
struct apply
{
typedef typename apply2<
Predicate
, typename deref<OldIterator>::type
, typename deref<Iterator>::type
>::type condition_;
typedef typename if_<
condition_
, Iterator
, OldIterator
>::type type;
};
};
} // namespace aux
template<
typename BOOST_MPL_AUX_NA_PARAM(Sequence)
, typename Predicate = less<_,_>
>
struct max_element
: iter_fold<
Sequence
, typename begin<Sequence>::type
, protect< aux::select_max<Predicate> >
>
{
};
BOOST_MPL_AUX_NA_SPEC(1, max_element)
}}
#endif // BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
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