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- [/
- Copyright 2010 Neil Groves
- 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)
- /]
- [section:max_element max_element]
- [heading Prototype]
- ``
- template<class ForwardRange>
- typename range_iterator<ForwardRange>::type
- max_element(ForwardRange& rng);
- template<class ForwardRange>
- typename range_iterator<const ForwardRange>::type
- max_element(const ForwardRange& rng);
- template<class ForwardRange, class BinaryPredicate>
- typename range_iterator<ForwardRange>::type
- max_element(ForwardRange& rng, BinaryPredicate pred);
- template<class ForwardRange, class BinaryPredicate>
- typename range_iterator<const ForwardRange>::type
- max_element(const ForwardRange& rng, BinaryPredicate pred);
- template<
- range_return_value re,
- class ForwardRange
- >
- typename range_return<ForwardRange, re>::type
- max_element(ForwardRange& rng);
- template<
- range_return_value_re,
- class ForwardRange
- >
- typename range_return<const ForwardRange, re>::type
- max_element(const ForwardRange& rng);
- template<
- range_return_value re,
- class ForwardRange,
- class BinaryPredicate
- >
- typename range_return<ForwardRange, re>::type
- max_element(ForwardRange& rng, BinaryPredicate pred);
- template<
- range_return_value re,
- class ForwardRange,
- class BinaryPredicate
- >
- typename range_return<const ForwardRange, re>::type
- max_element(const ForwardRange& rng, BinaryPredicate pred);
- ``
- [heading Description]
- The versions of `max_element` that return an iterator, return the iterator to the maximum value as determined by using `operator<` if a predicate is not supplied. Otherwise the predicate `pred` is used to determine the maximum value. The versions of `max_element` that return a `range_return`, defines `found` in the same manner as the returned iterator described above.
- [heading Definition]
- Defined in the header file `boost/range/algorithm/max_element.hpp`
- [heading Requirements]
- [*For the non-predicate versions:]
- * `ForwardRange` is a model of the __forward_range__ Concept.
- * `ForwardRange`'s value type is a model of the `LessThanComparableConcept`.
- [*For the predicate versions:]
- * `ForwardRange` is a model of the __forward_range__ Concept.
- * `BinaryPredicate` is a model of the `BinaryPredicateConcept`.
- * `ForwardRange`'s value type is convertible to both of `BinaryPredicate`'s argument types.
- [heading Complexity]
- Linear. Zero comparisons if `empty(rng)`, otherwise `distance(rng) - 1` comparisons.
- [endsect]
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