mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
42 lines
1.6 KiB
C++
42 lines
1.6 KiB
C++
|
#ifndef SPROUT_ALGORITHM_MINMAX_ELEMENT_HPP
|
||
|
#define SPROUT_ALGORITHM_MINMAX_ELEMENT_HPP
|
||
|
|
||
|
#include <sprout/config.hpp>
|
||
|
#include <sprout/iterator/operation.hpp>
|
||
|
#include <sprout/utility/pair.hpp>
|
||
|
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
|
||
|
|
||
|
namespace sprout {
|
||
|
// Copyright (C) 2011 RiSK (sscrisk)
|
||
|
|
||
|
namespace detail {
|
||
|
template<typename ForwardIterator, typename Compare>
|
||
|
SPROUT_CONSTEXPR sprout::pair<ForwardIterator, ForwardIterator> minmax_element_impl(
|
||
|
ForwardIterator first,
|
||
|
ForwardIterator last,
|
||
|
Compare comp,
|
||
|
ForwardIterator min,
|
||
|
ForwardIterator max
|
||
|
)
|
||
|
{
|
||
|
return first == last ? sprout::pair<ForwardIterator, ForwardIterator>(min, max)
|
||
|
: comp(*first, *min) ? sprout::detail::minmax_element_impl(sprout::next(first), last, comp, first, max)
|
||
|
: sprout::detail::minmax_element_impl(sprout::next(first), last, comp, min, comp(*first, *max) ? max : first)
|
||
|
;
|
||
|
}
|
||
|
} // namespace detail
|
||
|
|
||
|
// 25.4.7 Minimum and maximum
|
||
|
template<typename ForwardIterator, typename Compare>
|
||
|
SPROUT_CONSTEXPR pair<ForwardIterator, ForwardIterator> minmax_element(ForwardIterator first, ForwardIterator last, Compare comp) {
|
||
|
return sprout::detail::minmax_element_impl(first, last, comp, first, first);
|
||
|
}
|
||
|
|
||
|
template<typename ForwardIterator>
|
||
|
SPROUT_CONSTEXPR pair<ForwardIterator, ForwardIterator> minmax_element(ForwardIterator first, ForwardIterator last) {
|
||
|
return sprout::minmax_element(first, last, NS_SSCRISK_CEL_OR_SPROUT::less<typename std::iterator_traits<ForwardIterator>::value_type>());
|
||
|
}
|
||
|
} // namespace sprout
|
||
|
|
||
|
#endif // #ifndef SPROUT_ALGORITHM_MINMAX_ELEMENT_HPP
|