mirror of
https://github.com/bolero-MURAKAMI/Sprout
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35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
#ifndef SPROUT_ALGORITHM_EQUAL_RANGE_HPP
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#define SPROUT_ALGORITHM_EQUAL_RANGE_HPP
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#include <sprout/config.hpp>
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#include <sprout/algorithm/lower_bound.hpp>
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#include <sprout/algorithm/upper_bound.hpp>
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#include <sprout/utility/pair.hpp>
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#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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// Copyright (C) 2011 RiSK (sscrisk)
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// 25.4.3.3 equal_range
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//
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// recursion depth:
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// [first, last) is RandomAccessIterator -> O(log N)
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// otherwise -> O(N)
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//
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template<typename ForwardIterator, typename T, typename Compare>
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inline SPROUT_CONSTEXPR pair<ForwardIterator, ForwardIterator>
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equal_range(ForwardIterator first, ForwardIterator last, T const& value, Compare comp) {
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return {sprout::lower_bound(first, last, value, comp), sprout::upper_bound(first, last, value, comp)};
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}
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template<typename ForwardIterator, typename T>
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inline SPROUT_CONSTEXPR sprout::pair<ForwardIterator, ForwardIterator>
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equal_range(ForwardIterator first, ForwardIterator last, T const& value) {
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return sprout::equal_range(
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first, last, value,
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NS_SSCRISK_CEL_OR_SPROUT::less<typename std::iterator_traits<ForwardIterator>::value_type>()
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);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_EQUAL_RANGE_HPP
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