is_heap

Interface

template<typename RandomAccessIterator>
inline SPROUT_CONSTEXPR bool
is_heap(RandomAccessIterator first, RandomAccessIterator last);

template<typename RandomAccessIterator, typename Compare>
inline SPROUT_CONSTEXPR bool
is_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);

Returns

is_heap_until(first, last) == last, is_heap_until(first, last, comp) == last

Examples

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

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

Complexity

Recursive function invocations in O(logN) (logarithmic) depth.

Header

sprout/algorithm/is_heap.hpp

Convenience header: sprout/algorithm.hpp