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Sprout/sprout/algorithm/equal_range.hpp

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C++

/*=============================================================================
Copyright (c) 2011-2013 Bolero MURAKAMI
Copyright (C) 2011 RiSK (sscrisk)
https://github.com/bolero-MURAKAMI/Sprout
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)
=============================================================================*/
#ifndef SPROUT_ALGORITHM_EQUAL_RANGE_HPP
#define SPROUT_ALGORITHM_EQUAL_RANGE_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/algorithm/lower_bound.hpp>
#include <sprout/algorithm/upper_bound.hpp>
#include <sprout/utility/pair/pair.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
namespace sprout {
// 25.4.3.3 equal_range
//
// recursion depth:
// O(log N)
//
template<typename ForwardIterator, typename T, typename Compare>
inline SPROUT_CONSTEXPR sprout::pair<ForwardIterator, ForwardIterator>
equal_range(ForwardIterator first, ForwardIterator last, T const& value, Compare comp) {
return sprout::pair<ForwardIterator, ForwardIterator>(
sprout::lower_bound(first, last, value, comp),
sprout::upper_bound(first, last, value, comp)
);
}
template<typename ForwardIterator, typename T>
inline SPROUT_CONSTEXPR sprout::pair<ForwardIterator, ForwardIterator>
equal_range(ForwardIterator first, ForwardIterator last, T const& value) {
return sprout::equal_range(
first, last, value,
NS_SSCRISK_CEL_OR_SPROUT::less<typename std::iterator_traits<ForwardIterator>::value_type>()
);
}
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_EQUAL_RANGE_HPP