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max_element

Interface

template<typename ForwardIterator>
inline SPROUT_CONSTEXPR ForwardIterator
max_element(ForwardIterator first, ForwardIterator last);

template<typename ForwardIterator, typename Compare>
inline SPROUT_CONSTEXPR ForwardIterator
max_element(ForwardIterator first, ForwardIterator last, Compare comp);

Returns

The first iterator i in the range [first,last) such that for any iterator j in the range [first,last) the following corresponding conditions hold: !(*i < *j) or !comp(*i, *j).
Returns last if first == last.

Examples

#include <sprout/algorithm/max_element.hpp>
#include <sprout/array.hpp>
#include <sprout/container.hpp>
using namespace sprout;

SPROUT_STATIC_CONSTEXPR auto input = array<int, 10>{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}};
SPROUT_STATIC_CONSTEXPR auto result = sprout::max_element(begin(input), end(input));
static_assert(*result == 10, "a min element is 10.");
static_assert(result - begin(input) == 9, "a min element position is 9.");

Complexity

Exactly max((last - first) - 1, 0) applications of the corresponding comparisons.
Recursive function invocations in O(logN) (logarithmic) depth.