std::sort_heap

 

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all_of any_of none_of (C++11) (C++11) (C++11) for_each count count_if mismatch equal	find find_if find_if_not (C++11) find_end find_first_of adjacent_find search search_n
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is_heap is_heap_until (C++11) make_heap	push_heap pop_heap sort_heap
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Defined in header <algorithm>
template< class RandomIt > void sort_heap( RandomIt first, RandomIt last );	(1)
template< class RandomIt, class Compare > void sort_heap( RandomIt first, RandomIt last, Compare comp );	(2)

Sorts the elements in the heap [first, last) in ascending order. The first version of the function uses operator< to compare the elements, the second uses the given comparison function comp.

Parameters

first, last	-	the range of elements to sort
comp	-	comparison function which returns ​true if the first argument is less than the second. The signature of the comparison function should be equivalent to the following: bool cmp(const Type1 &a, const Type2 &b); The signature does not need to have const &, but the function must not modify the objects passed to it. The types  Type1 and  Type2 must be such that an object of type RandomIt can be dereferenced and then implicitly converted to both of them. ​
Type requirements
- RandomIt must meet the requirements of ValueSwappable and RandomAccessIterator.
- The type of dereferenced RandomIt must meet the requirements of MoveAssignable and MoveConstructible.

Return value

(none)

Complexity

At most N×log(N) comparisons where N=std::distance(first, last).

Notes

A heap is a range of elements [f,l) that has the following properties:

• *f is the largest element in the range
• a new element can be added using std::push_heap()
• the first element can be removed using std::pop_heap()

The actual arrangement of the elements is implementation defined.

See also

make_heap	creates a heap out of a range of elements (function template)