81 lines
2.7 KiB
C++
81 lines
2.7 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_EQUAL_RANGE_HPP_INCLUDED
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#define BOOST_RANGE_ALGORITHM_EQUAL_RANGE_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 <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 equal_range
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///
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/// range-based version of the equal_range std algorithm
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///
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/// \pre ForwardRange is a model of the ForwardRangeConcept
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/// \pre SortPredicate is a model of the BinaryPredicateConcept
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template<class ForwardRange, class Value>
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inline std::pair<
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BOOST_DEDUCED_TYPENAME boost::range_iterator<ForwardRange>::type,
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BOOST_DEDUCED_TYPENAME boost::range_iterator<ForwardRange>::type
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>
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equal_range(ForwardRange& rng, const Value& val)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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return std::equal_range(boost::begin(rng), boost::end(rng), val);
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}
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/// \overload
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template<class ForwardRange, class Value>
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inline std::pair<
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BOOST_DEDUCED_TYPENAME boost::range_iterator<const ForwardRange>::type,
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BOOST_DEDUCED_TYPENAME boost::range_iterator<const ForwardRange>::type
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>
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equal_range(const ForwardRange& rng, const Value& val)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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return std::equal_range(boost::begin(rng), boost::end(rng), val);
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}
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/// \overload
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template<class ForwardRange, class Value, class SortPredicate>
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inline std::pair<
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BOOST_DEDUCED_TYPENAME boost::range_iterator<ForwardRange>::type,
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BOOST_DEDUCED_TYPENAME boost::range_iterator<ForwardRange>::type
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>
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equal_range(ForwardRange& rng, const Value& val, SortPredicate pred)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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return std::equal_range(boost::begin(rng), boost::end(rng), val, pred);
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}
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/// \overload
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template<class ForwardRange, class Value, class SortPredicate>
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inline std::pair<
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BOOST_DEDUCED_TYPENAME boost::range_iterator<const ForwardRange>::type,
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BOOST_DEDUCED_TYPENAME boost::range_iterator<const ForwardRange>::type
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>
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equal_range(const ForwardRange& rng, const Value& val, SortPredicate pred)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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return std::equal_range(boost::begin(rng), boost::end(rng), val, pred);
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}
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} // namespace range
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using range::equal_range;
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} // namespace boost
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#endif // include guard
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