Sprout/sprout/range/algorithm/minmax_element.hpp
2012-04-04 17:48:02 +09:00

106 lines
3.5 KiB
C++

#ifndef SPROUT_RANGE_ALGORITHM_MINMAX_ELEMENT_HPP
#define SPROUT_RANGE_ALGORITHM_MINMAX_ELEMENT_HPP
#include <sprout/config.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/utility/operation.hpp>
#include <sprout/utility/pair.hpp>
#include <sprout/range/range_return.hpp>
#include <sprout/algorithm/minmax_element.hpp>
namespace sprout {
namespace range {
namespace detail {
template<typename Range, typename Pair>
SPROUT_CONSTEXPR sprout::pair<
typename sprout::range::range_return<Range>::type,
typename sprout::range::range_return<Range>::type
>
pack_pair(Pair const& pair, Range&& range) {
return {
sprout::range::range_return<Range>::pack(pair.first, sprout::forward<Range>(range)),
sprout::range::range_return<Range>::pack(pair.second, sprout::forward<Range>(range))
};
}
template<sprout::range::range_return_value RetV, typename Range, typename Pair>
SPROUT_CONSTEXPR sprout::pair<
typename sprout::range::range_return<Range, RetV>::type,
typename sprout::range::range_return<Range, RetV>::type
>
pack_pair(Pair const& pair, Range&& range) {
return {
sprout::range::range_return<Range, RetV>::pack(pair.first, sprout::forward<Range>(range)),
sprout::range::range_return<Range, RetV>::pack(pair.second, sprout::forward<Range>(range))
};
}
} // namespace detail
// Copyright (C) 2011 RiSK (sscrisk)
// 25.4.7 Minimum and maximum
template<typename Range>
SPROUT_CONSTEXPR sprout::pair<
typename sprout::range::range_return<Range>::type,
typename sprout::range::range_return<Range>::type
>
minmax_element(Range&& range) {
return sprout::range::detail::pack_pair<Range>(
sprout::minmax_element(
sprout::begin(sprout::forward<Range>(range)),
sprout::end(sprout::forward<Range>(range))
),
sprout::forward<Range>(range)
);
}
template<typename Range, typename Compare>
SPROUT_CONSTEXPR sprout::pair<
typename sprout::range::range_return<Range>::type,
typename sprout::range::range_return<Range>::type
>
minmax_element(Range&& range, Compare comp) {
return sprout::range::detail::pack_pair<Range>(
sprout::minmax_element(
sprout::begin(sprout::forward<Range>(range)),
sprout::end(sprout::forward<Range>(range)),
comp
),
sprout::forward<Range>(range)
);
}
template<sprout::range::range_return_value RetV, typename Range>
SPROUT_CONSTEXPR sprout::pair<
typename sprout::range::range_return<Range, RetV>::type,
typename sprout::range::range_return<Range, RetV>::type
>
minmax_element(Range&& range) {
return sprout::range::detail::pack_pair<RetV, Range>(
sprout::minmax_element(
sprout::begin(sprout::forward<Range>(range)),
sprout::end(sprout::forward<Range>(range))
),
sprout::forward<Range>(range)
);
}
template<sprout::range::range_return_value RetV, typename Range, typename Compare>
SPROUT_CONSTEXPR sprout::pair<
typename sprout::range::range_return<Range, RetV>::type,
typename sprout::range::range_return<Range, RetV>::type
>
minmax_element(Range&& range, Compare comp) {
return sprout::range::detail::pack_pair<RetV, Range>(
sprout::minmax_element(
sprout::begin(sprout::forward<Range>(range)),
sprout::end(sprout::forward<Range>(range)),
comp
),
sprout::forward<Range>(range)
);
}
} // namespace range
} // namespace sprout
#endif // #ifndef SPROUT_RANGE_ALGORITHM_MINMAX_ELEMENT_HPP