template<class RandomAccessIterator>
void sort_heap(RandomAccessIterator first, RandomAccessIterator last);
template<class RandomAccessIterator, class Compare>
void sort_heap(RandomAccessIterator first, RandomAccessIterator last,
Compare comp);
Requires: The range [first, last) shall be a valid heap. RandomAccessIterator shall satisfy the requirements of ValueSwappable ([swappable.requirements]). The type of *first shall satisfy the requirements of MoveConstructible (Table [tab:moveconstructible]) and of MoveAssignable (Table [tab:moveassignable]).
Effects: Sorts elements in the heap [first, last).
Complexity: At most N log(N) comparisons, where N = last - first.