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116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
// Copyright Neil Groves 2009. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (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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//
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// For more information, see http://www.boost.org/libs/range/
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//
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#ifndef BOOST_RANGE_ALGORITHM_MAX_ELEMENT_HPP_INCLUDED
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#define BOOST_RANGE_ALGORITHM_MAX_ELEMENT_HPP_INCLUDED
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#include <boost/concept_check.hpp>
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#include <boost/range/begin.hpp>
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#include <boost/range/end.hpp>
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#include <boost/range/concepts.hpp>
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#include <boost/range/detail/range_return.hpp>
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#include <algorithm>
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namespace boost
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{
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namespace range
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{
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/// \brief template function max_element
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///
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/// range-based version of the max_element std algorithm
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///
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/// \pre ForwardRange is a model of the ForwardRangeConcept
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/// \pre BinaryPredicate is a model of the BinaryPredicateConcept
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template<class ForwardRange>
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inline BOOST_DEDUCED_TYPENAME range_iterator<ForwardRange>::type
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max_element(ForwardRange& rng)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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return std::max_element(boost::begin(rng), boost::end(rng));
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}
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/// \overload
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template<class ForwardRange>
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inline BOOST_DEDUCED_TYPENAME range_iterator<const ForwardRange>::type
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max_element(const ForwardRange& rng)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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return std::max_element(boost::begin(rng), boost::end(rng));
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}
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/// \overload
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template<class ForwardRange, class BinaryPredicate>
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inline BOOST_DEDUCED_TYPENAME range_iterator<ForwardRange>::type
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max_element(ForwardRange& rng, BinaryPredicate pred)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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return std::max_element(boost::begin(rng), boost::end(rng), pred);
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}
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/// \overload
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template<class ForwardRange, class BinaryPredicate>
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inline BOOST_DEDUCED_TYPENAME range_iterator<const ForwardRange>::type
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max_element(const ForwardRange& rng, BinaryPredicate pred)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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return std::max_element(boost::begin(rng), boost::end(rng), pred);
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}
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// range_return overloads
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/// \overload
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template<range_return_value re, class ForwardRange>
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inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
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max_element(ForwardRange& rng)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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return range_return<ForwardRange,re>::pack(
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std::max_element(boost::begin(rng), boost::end(rng)),
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rng);
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}
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/// \overload
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template<range_return_value re, class ForwardRange>
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inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
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max_element(const ForwardRange& rng)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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return range_return<const ForwardRange,re>::pack(
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std::max_element(boost::begin(rng), boost::end(rng)),
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rng);
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}
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/// \overload
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template<range_return_value re, class ForwardRange, class BinaryPredicate>
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inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
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max_element(ForwardRange& rng, BinaryPredicate pred)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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return range_return<ForwardRange,re>::pack(
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std::max_element(boost::begin(rng), boost::end(rng), pred),
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rng);
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}
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/// \overload
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template<range_return_value re, class ForwardRange, class BinaryPredicate>
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inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
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max_element(const ForwardRange& rng, BinaryPredicate pred)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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return range_return<const ForwardRange,re>::pack(
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std::max_element(boost::begin(rng), boost::end(rng), pred),
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rng);
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}
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} // namespace range
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using range::max_element;
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} // namespace boost
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#endif // include guard
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